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firefox/libwebrtc-screen-cast-sync.patch

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Backport WebRTC changes to PipeWire/Wayland screen sharing support
2022-02-22 09:01:04 +00:00
From e0e925da71abb97a60d02716b18faa19a29fada6 Mon Sep 17 00:00:00 2001
From: Jan Grulich <jgrulich@redhat.com>
Date: Mon, 21 Feb 2022 15:34:52 +0100
Subject: WebRTC - screen cast sync
diff --git a/dom/media/webrtc/third_party_build/moz.build b/dom/media/webrtc/third_party_build/moz.build
index e4c7ba7..a42f913 100644
--- a/dom/media/webrtc/third_party_build/moz.build
+++ b/dom/media/webrtc/third_party_build/moz.build
@@ -63,6 +63,8 @@ webrtc_non_unified_sources = [
if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
DIRS += ["../../../../third_party/pipewire/libpipewire"]
+ DIRS += ["../../../../third_party/drm/libdrm"]
+ DIRS += ["../../../../third_party/gbm/libgbm"]
GN_DIRS += ["../../../../third_party/libwebrtc"]
diff --git a/third_party/drm/README b/third_party/drm/README
new file mode 100644
index 0000000..f68ed10
--- /dev/null
+++ b/third_party/drm/README
@@ -0,0 +1,4 @@
+Libdrm is a drm library wrapper needed to build and run Firefox with
+Pipewire support on Linux (https://gitlab.freedesktop.org/mesa/drm).
+
+libdrm directory stores headers of libdrm needed for build only.
diff --git a/third_party/drm/drm/drm.h b/third_party/drm/drm/drm.h
new file mode 100644
index 0000000..5e54c3a
--- /dev/null
+++ b/third_party/drm/drm/drm.h
@@ -0,0 +1,1193 @@
+/*
+ * Header for the Direct Rendering Manager
+ *
+ * Author: Rickard E. (Rik) Faith <faith@valinux.com>
+ *
+ * Acknowledgments:
+ * Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic cmpxchg.
+ */
+
+/*
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DRM_H_
+#define _DRM_H_
+
+#if defined(__linux__)
+
+#include <linux/types.h>
+#include <asm/ioctl.h>
+typedef unsigned int drm_handle_t;
+
+#else /* One of the BSDs */
+
+#include <stdint.h>
+#include <sys/ioccom.h>
+#include <sys/types.h>
+typedef int8_t __s8;
+typedef uint8_t __u8;
+typedef int16_t __s16;
+typedef uint16_t __u16;
+typedef int32_t __s32;
+typedef uint32_t __u32;
+typedef int64_t __s64;
+typedef uint64_t __u64;
+typedef size_t __kernel_size_t;
+typedef unsigned long drm_handle_t;
+
+#endif
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#define DRM_NAME "drm" /**< Name in kernel, /dev, and /proc */
+#define DRM_MIN_ORDER 5 /**< At least 2^5 bytes = 32 bytes */
+#define DRM_MAX_ORDER 22 /**< Up to 2^22 bytes = 4MB */
+#define DRM_RAM_PERCENT 10 /**< How much system ram can we lock? */
+
+#define _DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */
+#define _DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */
+#define _DRM_LOCK_IS_HELD(lock) ((lock) & _DRM_LOCK_HELD)
+#define _DRM_LOCK_IS_CONT(lock) ((lock) & _DRM_LOCK_CONT)
+#define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))
+
+typedef unsigned int drm_context_t;
+typedef unsigned int drm_drawable_t;
+typedef unsigned int drm_magic_t;
+
+/*
+ * Cliprect.
+ *
+ * \warning: If you change this structure, make sure you change
+ * XF86DRIClipRectRec in the server as well
+ *
+ * \note KW: Actually it's illegal to change either for
+ * backwards-compatibility reasons.
+ */
+struct drm_clip_rect {
+ unsigned short x1;
+ unsigned short y1;
+ unsigned short x2;
+ unsigned short y2;
+};
+
+/*
+ * Drawable information.
+ */
+struct drm_drawable_info {
+ unsigned int num_rects;
+ struct drm_clip_rect *rects;
+};
+
+/*
+ * Texture region,
+ */
+struct drm_tex_region {
+ unsigned char next;
+ unsigned char prev;
+ unsigned char in_use;
+ unsigned char padding;
+ unsigned int age;
+};
+
+/*
+ * Hardware lock.
+ *
+ * The lock structure is a simple cache-line aligned integer. To avoid
+ * processor bus contention on a multiprocessor system, there should not be any
+ * other data stored in the same cache line.
+ */
+struct drm_hw_lock {
+ __volatile__ unsigned int lock; /**< lock variable */
+ char padding[60]; /**< Pad to cache line */
+};
+
+/*
+ * DRM_IOCTL_VERSION ioctl argument type.
+ *
+ * \sa drmGetVersion().
+ */
+struct drm_version {
+ int version_major; /**< Major version */
+ int version_minor; /**< Minor version */
+ int version_patchlevel; /**< Patch level */
+ __kernel_size_t name_len; /**< Length of name buffer */
+ char *name; /**< Name of driver */
+ __kernel_size_t date_len; /**< Length of date buffer */
+ char *date; /**< User-space buffer to hold date */
+ __kernel_size_t desc_len; /**< Length of desc buffer */
+ char *desc; /**< User-space buffer to hold desc */
+};
+
+/*
+ * DRM_IOCTL_GET_UNIQUE ioctl argument type.
+ *
+ * \sa drmGetBusid() and drmSetBusId().
+ */
+struct drm_unique {
+ __kernel_size_t unique_len; /**< Length of unique */
+ char *unique; /**< Unique name for driver instantiation */
+};
+
+struct drm_list {
+ int count; /**< Length of user-space structures */
+ struct drm_version *version;
+};
+
+struct drm_block {
+ int unused;
+};
+
+/*
+ * DRM_IOCTL_CONTROL ioctl argument type.
+ *
+ * \sa drmCtlInstHandler() and drmCtlUninstHandler().
+ */
+struct drm_control {
+ enum {
+ DRM_ADD_COMMAND,
+ DRM_RM_COMMAND,
+ DRM_INST_HANDLER,
+ DRM_UNINST_HANDLER
+ } func;
+ int irq;
+};
+
+/*
+ * Type of memory to map.
+ */
+enum drm_map_type {
+ _DRM_FRAME_BUFFER = 0, /**< WC (no caching), no core dump */
+ _DRM_REGISTERS = 1, /**< no caching, no core dump */
+ _DRM_SHM = 2, /**< shared, cached */
+ _DRM_AGP = 3, /**< AGP/GART */
+ _DRM_SCATTER_GATHER = 4, /**< Scatter/gather memory for PCI DMA */
+ _DRM_CONSISTENT = 5 /**< Consistent memory for PCI DMA */
+};
+
+/*
+ * Memory mapping flags.
+ */
+enum drm_map_flags {
+ _DRM_RESTRICTED = 0x01, /**< Cannot be mapped to user-virtual */
+ _DRM_READ_ONLY = 0x02,
+ _DRM_LOCKED = 0x04, /**< shared, cached, locked */
+ _DRM_KERNEL = 0x08, /**< kernel requires access */
+ _DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */
+ _DRM_CONTAINS_LOCK = 0x20, /**< SHM page that contains lock */
+ _DRM_REMOVABLE = 0x40, /**< Removable mapping */
+ _DRM_DRIVER = 0x80 /**< Managed by driver */
+};
+
+struct drm_ctx_priv_map {
+ unsigned int ctx_id; /**< Context requesting private mapping */
+ void *handle; /**< Handle of map */
+};
+
+/*
+ * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls
+ * argument type.
+ *
+ * \sa drmAddMap().
+ */
+struct drm_map {
+ unsigned long offset; /**< Requested physical address (0 for SAREA)*/
+ unsigned long size; /**< Requested physical size (bytes) */
+ enum drm_map_type type; /**< Type of memory to map */
+ enum drm_map_flags flags; /**< Flags */
+ void *handle; /**< User-space: "Handle" to pass to mmap() */
+ /**< Kernel-space: kernel-virtual address */
+ int mtrr; /**< MTRR slot used */
+ /* Private data */
+};
+
+/*
+ * DRM_IOCTL_GET_CLIENT ioctl argument type.
+ */
+struct drm_client {
+ int idx; /**< Which client desired? */
+ int auth; /**< Is client authenticated? */
+ unsigned long pid; /**< Process ID */
+ unsigned long uid; /**< User ID */
+ unsigned long magic; /**< Magic */
+ unsigned long iocs; /**< Ioctl count */
+};
+
+enum drm_stat_type {
+ _DRM_STAT_LOCK,
+ _DRM_STAT_OPENS,
+ _DRM_STAT_CLOSES,
+ _DRM_STAT_IOCTLS,
+ _DRM_STAT_LOCKS,
+ _DRM_STAT_UNLOCKS,
+ _DRM_STAT_VALUE, /**< Generic value */
+ _DRM_STAT_BYTE, /**< Generic byte counter (1024bytes/K) */
+ _DRM_STAT_COUNT, /**< Generic non-byte counter (1000/k) */
+
+ _DRM_STAT_IRQ, /**< IRQ */
+ _DRM_STAT_PRIMARY, /**< Primary DMA bytes */
+ _DRM_STAT_SECONDARY, /**< Secondary DMA bytes */
+ _DRM_STAT_DMA, /**< DMA */
+ _DRM_STAT_SPECIAL, /**< Special DMA (e.g., priority or polled) */
+ _DRM_STAT_MISSED /**< Missed DMA opportunity */
+ /* Add to the *END* of the list */
+};
+
+/*
+ * DRM_IOCTL_GET_STATS ioctl argument type.
+ */
+struct drm_stats {
+ unsigned long count;
+ struct {
+ unsigned long value;
+ enum drm_stat_type type;
+ } data[15];
+};
+
+/*
+ * Hardware locking flags.
+ */
+enum drm_lock_flags {
+ _DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */
+ _DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */
+ _DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */
+ _DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */
+ /* These *HALT* flags aren't supported yet
+ -- they will be used to support the
+ full-screen DGA-like mode. */
+ _DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
+ _DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */
+};
+
+/*
+ * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type.
+ *
+ * \sa drmGetLock() and drmUnlock().
+ */
+struct drm_lock {
+ int context;
+ enum drm_lock_flags flags;
+};
+
+/*
+ * DMA flags
+ *
+ * \warning
+ * These values \e must match xf86drm.h.
+ *
+ * \sa drm_dma.
+ */
+enum drm_dma_flags {
+ /* Flags for DMA buffer dispatch */
+ _DRM_DMA_BLOCK = 0x01, /**<
+ * Block until buffer dispatched.
+ *
+ * \note The buffer may not yet have
+ * been processed by the hardware --
+ * getting a hardware lock with the
+ * hardware quiescent will ensure
+ * that the buffer has been
+ * processed.
+ */
+ _DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
+ _DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */
+
+ /* Flags for DMA buffer request */
+ _DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */
+ _DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */
+ _DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */
+};
+
+/*
+ * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type.
+ *
+ * \sa drmAddBufs().
+ */
+struct drm_buf_desc {
+ int count; /**< Number of buffers of this size */
+ int size; /**< Size in bytes */
+ int low_mark; /**< Low water mark */
+ int high_mark; /**< High water mark */
+ enum {
+ _DRM_PAGE_ALIGN = 0x01, /**< Align on page boundaries for DMA */
+ _DRM_AGP_BUFFER = 0x02, /**< Buffer is in AGP space */
+ _DRM_SG_BUFFER = 0x04, /**< Scatter/gather memory buffer */
+ _DRM_FB_BUFFER = 0x08, /**< Buffer is in frame buffer */
+ _DRM_PCI_BUFFER_RO = 0x10 /**< Map PCI DMA buffer read-only */
+ } flags;
+ unsigned long agp_start; /**<
+ * Start address of where the AGP buffers are
+ * in the AGP aperture
+ */
+};
+
+/*
+ * DRM_IOCTL_INFO_BUFS ioctl argument type.
+ */
+struct drm_buf_info {
+ int count; /**< Entries in list */
+ struct drm_buf_desc *list;
+};
+
+/*
+ * DRM_IOCTL_FREE_BUFS ioctl argument type.
+ */
+struct drm_buf_free {
+ int count;
+ int *list;
+};
+
+/*
+ * Buffer information
+ *
+ * \sa drm_buf_map.
+ */
+struct drm_buf_pub {
+ int idx; /**< Index into the master buffer list */
+ int total; /**< Buffer size */
+ int used; /**< Amount of buffer in use (for DMA) */
+ void *address; /**< Address of buffer */
+};
+
+/*
+ * DRM_IOCTL_MAP_BUFS ioctl argument type.
+ */
+struct drm_buf_map {
+ int count; /**< Length of the buffer list */
+#ifdef __cplusplus
+ void *virt;
+#else
+ void *virtual; /**< Mmap'd area in user-virtual */
+#endif
+ struct drm_buf_pub *list; /**< Buffer information */
+};
+
+/*
+ * DRM_IOCTL_DMA ioctl argument type.
+ *
+ * Indices here refer to the offset into the buffer list in drm_buf_get.
+ *
+ * \sa drmDMA().
+ */
+struct drm_dma {
+ int context; /**< Context handle */
+ int send_count; /**< Number of buffers to send */
+ int *send_indices; /**< List of handles to buffers */
+ int *send_sizes; /**< Lengths of data to send */
+ enum drm_dma_flags flags; /**< Flags */
+ int request_count; /**< Number of buffers requested */
+ int request_size; /**< Desired size for buffers */
+ int *request_indices; /**< Buffer information */
+ int *request_sizes;
+ int granted_count; /**< Number of buffers granted */
+};
+
+enum drm_ctx_flags {
+ _DRM_CONTEXT_PRESERVED = 0x01,
+ _DRM_CONTEXT_2DONLY = 0x02
+};
+
+/*
+ * DRM_IOCTL_ADD_CTX ioctl argument type.
+ *
+ * \sa drmCreateContext() and drmDestroyContext().
+ */
+struct drm_ctx {
+ drm_context_t handle;
+ enum drm_ctx_flags flags;
+};
+
+/*
+ * DRM_IOCTL_RES_CTX ioctl argument type.
+ */
+struct drm_ctx_res {
+ int count;
+ struct drm_ctx *contexts;
+};
+
+/*
+ * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type.
+ */
+struct drm_draw {
+ drm_drawable_t handle;
+};
+
+/*
+ * DRM_IOCTL_UPDATE_DRAW ioctl argument type.
+ */
+typedef enum {
+ DRM_DRAWABLE_CLIPRECTS
+} drm_drawable_info_type_t;
+
+struct drm_update_draw {
+ drm_drawable_t handle;
+ unsigned int type;
+ unsigned int num;
+ unsigned long long data;
+};
+
+/*
+ * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type.
+ */
+struct drm_auth {
+ drm_magic_t magic;
+};
+
+/*
+ * DRM_IOCTL_IRQ_BUSID ioctl argument type.
+ *
+ * \sa drmGetInterruptFromBusID().
+ */
+struct drm_irq_busid {
+ int irq; /**< IRQ number */
+ int busnum; /**< bus number */
+ int devnum; /**< device number */
+ int funcnum; /**< function number */
+};
+
+enum drm_vblank_seq_type {
+ _DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
+ _DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
+ /* bits 1-6 are reserved for high crtcs */
+ _DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,
+ _DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */
+ _DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
+ _DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
+ _DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
+ _DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking, unsupported */
+};
+#define _DRM_VBLANK_HIGH_CRTC_SHIFT 1
+
+#define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)
+#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \
+ _DRM_VBLANK_SECONDARY | _DRM_VBLANK_NEXTONMISS)
+
+struct drm_wait_vblank_request {
+ enum drm_vblank_seq_type type;
+ unsigned int sequence;
+ unsigned long signal;
+};
+
+struct drm_wait_vblank_reply {
+ enum drm_vblank_seq_type type;
+ unsigned int sequence;
+ long tval_sec;
+ long tval_usec;
+};
+
+/*
+ * DRM_IOCTL_WAIT_VBLANK ioctl argument type.
+ *
+ * \sa drmWaitVBlank().
+ */
+union drm_wait_vblank {
+ struct drm_wait_vblank_request request;
+ struct drm_wait_vblank_reply reply;
+};
+
+#define _DRM_PRE_MODESET 1
+#define _DRM_POST_MODESET 2
+
+/*
+ * DRM_IOCTL_MODESET_CTL ioctl argument type
+ *
+ * \sa drmModesetCtl().
+ */
+struct drm_modeset_ctl {
+ __u32 crtc;
+ __u32 cmd;
+};
+
+/*
+ * DRM_IOCTL_AGP_ENABLE ioctl argument type.
+ *
+ * \sa drmAgpEnable().
+ */
+struct drm_agp_mode {
+ unsigned long mode; /**< AGP mode */
+};
+
+/*
+ * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type.
+ *
+ * \sa drmAgpAlloc() and drmAgpFree().
+ */
+struct drm_agp_buffer {
+ unsigned long size; /**< In bytes -- will round to page boundary */
+ unsigned long handle; /**< Used for binding / unbinding */
+ unsigned long type; /**< Type of memory to allocate */
+ unsigned long physical; /**< Physical used by i810 */
+};
+
+/*
+ * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type.
+ *
+ * \sa drmAgpBind() and drmAgpUnbind().
+ */
+struct drm_agp_binding {
+ unsigned long handle; /**< From drm_agp_buffer */
+ unsigned long offset; /**< In bytes -- will round to page boundary */
+};
+
+/*
+ * DRM_IOCTL_AGP_INFO ioctl argument type.
+ *
+ * \sa drmAgpVersionMajor(), drmAgpVersionMinor(), drmAgpGetMode(),
+ * drmAgpBase(), drmAgpSize(), drmAgpMemoryUsed(), drmAgpMemoryAvail(),
+ * drmAgpVendorId() and drmAgpDeviceId().
+ */
+struct drm_agp_info {
+ int agp_version_major;
+ int agp_version_minor;
+ unsigned long mode;
+ unsigned long aperture_base; /* physical address */
+ unsigned long aperture_size; /* bytes */
+ unsigned long memory_allowed; /* bytes */
+ unsigned long memory_used;
+
+ /* PCI information */
+ unsigned short id_vendor;
+ unsigned short id_device;
+};
+
+/*
+ * DRM_IOCTL_SG_ALLOC ioctl argument type.
+ */
+struct drm_scatter_gather {
+ unsigned long size; /**< In bytes -- will round to page boundary */
+ unsigned long handle; /**< Used for mapping / unmapping */
+};
+
+/*
+ * DRM_IOCTL_SET_VERSION ioctl argument type.
+ */
+struct drm_set_version {
+ int drm_di_major;
+ int drm_di_minor;
+ int drm_dd_major;
+ int drm_dd_minor;
+};
+
+/* DRM_IOCTL_GEM_CLOSE ioctl argument type */
+struct drm_gem_close {
+ /** Handle of the object to be closed. */
+ __u32 handle;
+ __u32 pad;
+};
+
+/* DRM_IOCTL_GEM_FLINK ioctl argument type */
+struct drm_gem_flink {
+ /** Handle for the object being named */
+ __u32 handle;
+
+ /** Returned global name */
+ __u32 name;
+};
+
+/* DRM_IOCTL_GEM_OPEN ioctl argument type */
+struct drm_gem_open {
+ /** Name of object being opened */
+ __u32 name;
+
+ /** Returned handle for the object */
+ __u32 handle;
+
+ /** Returned size of the object */
+ __u64 size;
+};
+
+/**
+ * DRM_CAP_DUMB_BUFFER
+ *
+ * If set to 1, the driver supports creating dumb buffers via the
+ * &DRM_IOCTL_MODE_CREATE_DUMB ioctl.
+ */
+#define DRM_CAP_DUMB_BUFFER 0x1
+/**
+ * DRM_CAP_VBLANK_HIGH_CRTC
+ *
+ * If set to 1, the kernel supports specifying a :ref:`CRTC index<crtc_index>`
+ * in the high bits of &drm_wait_vblank_request.type.
+ *
+ * Starting kernel version 2.6.39, this capability is always set to 1.
+ */
+#define DRM_CAP_VBLANK_HIGH_CRTC 0x2
+/**
+ * DRM_CAP_DUMB_PREFERRED_DEPTH
+ *
+ * The preferred bit depth for dumb buffers.
+ *
+ * The bit depth is the number of bits used to indicate the color of a single
+ * pixel excluding any padding. This is different from the number of bits per
+ * pixel. For instance, XRGB8888 has a bit depth of 24 but has 32 bits per
+ * pixel.
+ *
+ * Note that this preference only applies to dumb buffers, it's irrelevant for
+ * other types of buffers.
+ */
+#define DRM_CAP_DUMB_PREFERRED_DEPTH 0x3
+/**
+ * DRM_CAP_DUMB_PREFER_SHADOW
+ *
+ * If set to 1, the driver prefers userspace to render to a shadow buffer
+ * instead of directly rendering to a dumb buffer. For best speed, userspace
+ * should do streaming ordered memory copies into the dumb buffer and never
+ * read from it.
+ *
+ * Note that this preference only applies to dumb buffers, it's irrelevant for
+ * other types of buffers.
+ */
+#define DRM_CAP_DUMB_PREFER_SHADOW 0x4
+/**
+ * DRM_CAP_PRIME
+ *
+ * Bitfield of supported PRIME sharing capabilities. See &DRM_PRIME_CAP_IMPORT
+ * and &DRM_PRIME_CAP_EXPORT.
+ *
+ * PRIME buffers are exposed as dma-buf file descriptors. See
+ * Documentation/gpu/drm-mm.rst, section "PRIME Buffer Sharing".
+ */
+#define DRM_CAP_PRIME 0x5
+/**
+ * DRM_PRIME_CAP_IMPORT
+ *
+ * If this bit is set in &DRM_CAP_PRIME, the driver supports importing PRIME
+ * buffers via the &DRM_IOCTL_PRIME_FD_TO_HANDLE ioctl.
+ */
+#define DRM_PRIME_CAP_IMPORT 0x1
+/**
+ * DRM_PRIME_CAP_EXPORT
+ *
+ * If this bit is set in &DRM_CAP_PRIME, the driver supports exporting PRIME
+ * buffers via the &DRM_IOCTL_PRIME_HANDLE_TO_FD ioctl.
+ */
+#define DRM_PRIME_CAP_EXPORT 0x2
+/**
+ * DRM_CAP_TIMESTAMP_MONOTONIC
+ *
+ * If set to 0, the kernel will report timestamps with ``CLOCK_REALTIME`` in
+ * struct drm_event_vblank. If set to 1, the kernel will report timestamps with
+ * ``CLOCK_MONOTONIC``. See ``clock_gettime(2)`` for the definition of these
+ * clocks.
+ *
+ * Starting from kernel version 2.6.39, the default value for this capability
+ * is 1. Starting kernel version 4.15, this capability is always set to 1.
+ */
+#define DRM_CAP_TIMESTAMP_MONOTONIC 0x6
+/**
+ * DRM_CAP_ASYNC_PAGE_FLIP
+ *
+ * If set to 1, the driver supports &DRM_MODE_PAGE_FLIP_ASYNC.
+ */
+#define DRM_CAP_ASYNC_PAGE_FLIP 0x7
+/**
+ * DRM_CAP_CURSOR_WIDTH
+ *
+ * The ``CURSOR_WIDTH`` and ``CURSOR_HEIGHT`` capabilities return a valid
+ * width x height combination for the hardware cursor. The intention is that a
+ * hardware agnostic userspace can query a cursor plane size to use.
+ *
+ * Note that the cross-driver contract is to merely return a valid size;
+ * drivers are free to attach another meaning on top, eg. i915 returns the
+ * maximum plane size.
+ */
+#define DRM_CAP_CURSOR_WIDTH 0x8
+/**
+ * DRM_CAP_CURSOR_HEIGHT
+ *
+ * See &DRM_CAP_CURSOR_WIDTH.
+ */
+#define DRM_CAP_CURSOR_HEIGHT 0x9
+/**
+ * DRM_CAP_ADDFB2_MODIFIERS
+ *
+ * If set to 1, the driver supports supplying modifiers in the
+ * &DRM_IOCTL_MODE_ADDFB2 ioctl.
+ */
+#define DRM_CAP_ADDFB2_MODIFIERS 0x10
+/**
+ * DRM_CAP_PAGE_FLIP_TARGET
+ *
+ * If set to 1, the driver supports the &DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE and
+ * &DRM_MODE_PAGE_FLIP_TARGET_RELATIVE flags in
+ * &drm_mode_crtc_page_flip_target.flags for the &DRM_IOCTL_MODE_PAGE_FLIP
+ * ioctl.
+ */
+#define DRM_CAP_PAGE_FLIP_TARGET 0x11
+/**
+ * DRM_CAP_CRTC_IN_VBLANK_EVENT
+ *
+ * If set to 1, the kernel supports reporting the CRTC ID in
+ * &drm_event_vblank.crtc_id for the &DRM_EVENT_VBLANK and
+ * &DRM_EVENT_FLIP_COMPLETE events.
+ *
+ * Starting kernel version 4.12, this capability is always set to 1.
+ */
+#define DRM_CAP_CRTC_IN_VBLANK_EVENT 0x12
+/**
+ * DRM_CAP_SYNCOBJ
+ *
+ * If set to 1, the driver supports sync objects. See
+ * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects".
+ */
+#define DRM_CAP_SYNCOBJ 0x13
+/**
+ * DRM_CAP_SYNCOBJ_TIMELINE
+ *
+ * If set to 1, the driver supports timeline operations on sync objects. See
+ * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects".
+ */
+#define DRM_CAP_SYNCOBJ_TIMELINE 0x14
+
+/* DRM_IOCTL_GET_CAP ioctl argument type */
+struct drm_get_cap {
+ __u64 capability;
+ __u64 value;
+};
+
+/**
+ * DRM_CLIENT_CAP_STEREO_3D
+ *
+ * If set to 1, the DRM core will expose the stereo 3D capabilities of the
+ * monitor by advertising the supported 3D layouts in the flags of struct
+ * drm_mode_modeinfo. See ``DRM_MODE_FLAG_3D_*``.
+ *
+ * This capability is always supported for all drivers starting from kernel
+ * version 3.13.
+ */
+#define DRM_CLIENT_CAP_STEREO_3D 1
+
+/**
+ * DRM_CLIENT_CAP_UNIVERSAL_PLANES
+ *
+ * If set to 1, the DRM core will expose all planes (overlay, primary, and
+ * cursor) to userspace.
+ *
+ * This capability has been introduced in kernel version 3.15. Starting from
+ * kernel version 3.17, this capability is always supported for all drivers.
+ */
+#define DRM_CLIENT_CAP_UNIVERSAL_PLANES 2
+
+/**
+ * DRM_CLIENT_CAP_ATOMIC
+ *
+ * If set to 1, the DRM core will expose atomic properties to userspace. This
+ * implicitly enables &DRM_CLIENT_CAP_UNIVERSAL_PLANES and
+ * &DRM_CLIENT_CAP_ASPECT_RATIO.
+ *
+ * If the driver doesn't support atomic mode-setting, enabling this capability
+ * will fail with -EOPNOTSUPP.
+ *
+ * This capability has been introduced in kernel version 4.0. Starting from
+ * kernel version 4.2, this capability is always supported for atomic-capable
+ * drivers.
+ */
+#define DRM_CLIENT_CAP_ATOMIC 3
+
+/**
+ * DRM_CLIENT_CAP_ASPECT_RATIO
+ *
+ * If set to 1, the DRM core will provide aspect ratio information in modes.
+ * See ``DRM_MODE_FLAG_PIC_AR_*``.
+ *
+ * This capability is always supported for all drivers starting from kernel
+ * version 4.18.
+ */
+#define DRM_CLIENT_CAP_ASPECT_RATIO 4
+
+/**
+ * DRM_CLIENT_CAP_WRITEBACK_CONNECTORS
+ *
+ * If set to 1, the DRM core will expose special connectors to be used for
+ * writing back to memory the scene setup in the commit. The client must enable
+ * &DRM_CLIENT_CAP_ATOMIC first.
+ *
+ * This capability is always supported for atomic-capable drivers starting from
+ * kernel version 4.19.
+ */
+#define DRM_CLIENT_CAP_WRITEBACK_CONNECTORS 5
+
+/* DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */
+struct drm_set_client_cap {
+ __u64 capability;
+ __u64 value;
+};
+
+#define DRM_RDWR O_RDWR
+#define DRM_CLOEXEC O_CLOEXEC
+struct drm_prime_handle {
+ __u32 handle;
+
+ /** Flags.. only applicable for handle->fd */
+ __u32 flags;
+
+ /** Returned dmabuf file descriptor */
+ __s32 fd;
+};
+
+struct drm_syncobj_create {
+ __u32 handle;
+#define DRM_SYNCOBJ_CREATE_SIGNALED (1 << 0)
+ __u32 flags;
+};
+
+struct drm_syncobj_destroy {
+ __u32 handle;
+ __u32 pad;
+};
+
+#define DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE (1 << 0)
+#define DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE (1 << 0)
+struct drm_syncobj_handle {
+ __u32 handle;
+ __u32 flags;
+
+ __s32 fd;
+ __u32 pad;
+};
+
+struct drm_syncobj_transfer {
+ __u32 src_handle;
+ __u32 dst_handle;
+ __u64 src_point;
+ __u64 dst_point;
+ __u32 flags;
+ __u32 pad;
+};
+
+#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL (1 << 0)
+#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT (1 << 1)
+#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE (1 << 2) /* wait for time point to become available */
+struct drm_syncobj_wait {
+ __u64 handles;
+ /* absolute timeout */
+ __s64 timeout_nsec;
+ __u32 count_handles;
+ __u32 flags;
+ __u32 first_signaled; /* only valid when not waiting all */
+ __u32 pad;
+};
+
+struct drm_syncobj_timeline_wait {
+ __u64 handles;
+ /* wait on specific timeline point for every handles*/
+ __u64 points;
+ /* absolute timeout */
+ __s64 timeout_nsec;
+ __u32 count_handles;
+ __u32 flags;
+ __u32 first_signaled; /* only valid when not waiting all */
+ __u32 pad;
+};
+
+
+struct drm_syncobj_array {
+ __u64 handles;
+ __u32 count_handles;
+ __u32 pad;
+};
+
+#define DRM_SYNCOBJ_QUERY_FLAGS_LAST_SUBMITTED (1 << 0) /* last available point on timeline syncobj */
+struct drm_syncobj_timeline_array {
+ __u64 handles;
+ __u64 points;
+ __u32 count_handles;
+ __u32 flags;
+};
+
+
+/* Query current scanout sequence number */
+struct drm_crtc_get_sequence {
+ __u32 crtc_id; /* requested crtc_id */
+ __u32 active; /* return: crtc output is active */
+ __u64 sequence; /* return: most recent vblank sequence */
+ __s64 sequence_ns; /* return: most recent time of first pixel out */
+};
+
+/* Queue event to be delivered at specified sequence. Time stamp marks
+ * when the first pixel of the refresh cycle leaves the display engine
+ * for the display
+ */
+#define DRM_CRTC_SEQUENCE_RELATIVE 0x00000001 /* sequence is relative to current */
+#define DRM_CRTC_SEQUENCE_NEXT_ON_MISS 0x00000002 /* Use next sequence if we've missed */
+
+struct drm_crtc_queue_sequence {
+ __u32 crtc_id;
+ __u32 flags;
+ __u64 sequence; /* on input, target sequence. on output, actual sequence */
+ __u64 user_data; /* user data passed to event */
+};
+
+#if defined(__cplusplus)
+}
+#endif
+
+#include "drm_mode.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#define DRM_IOCTL_BASE 'd'
+#define DRM_IO(nr) _IO(DRM_IOCTL_BASE,nr)
+#define DRM_IOR(nr,type) _IOR(DRM_IOCTL_BASE,nr,type)
+#define DRM_IOW(nr,type) _IOW(DRM_IOCTL_BASE,nr,type)
+#define DRM_IOWR(nr,type) _IOWR(DRM_IOCTL_BASE,nr,type)
+
+#define DRM_IOCTL_VERSION DRM_IOWR(0x00, struct drm_version)
+#define DRM_IOCTL_GET_UNIQUE DRM_IOWR(0x01, struct drm_unique)
+#define DRM_IOCTL_GET_MAGIC DRM_IOR( 0x02, struct drm_auth)
+#define DRM_IOCTL_IRQ_BUSID DRM_IOWR(0x03, struct drm_irq_busid)
+#define DRM_IOCTL_GET_MAP DRM_IOWR(0x04, struct drm_map)
+#define DRM_IOCTL_GET_CLIENT DRM_IOWR(0x05, struct drm_client)
+#define DRM_IOCTL_GET_STATS DRM_IOR( 0x06, struct drm_stats)
+#define DRM_IOCTL_SET_VERSION DRM_IOWR(0x07, struct drm_set_version)
+#define DRM_IOCTL_MODESET_CTL DRM_IOW(0x08, struct drm_modeset_ctl)
+#define DRM_IOCTL_GEM_CLOSE DRM_IOW (0x09, struct drm_gem_close)
+#define DRM_IOCTL_GEM_FLINK DRM_IOWR(0x0a, struct drm_gem_flink)
+#define DRM_IOCTL_GEM_OPEN DRM_IOWR(0x0b, struct drm_gem_open)
+#define DRM_IOCTL_GET_CAP DRM_IOWR(0x0c, struct drm_get_cap)
+#define DRM_IOCTL_SET_CLIENT_CAP DRM_IOW( 0x0d, struct drm_set_client_cap)
+
+#define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, struct drm_unique)
+#define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, struct drm_auth)
+#define DRM_IOCTL_BLOCK DRM_IOWR(0x12, struct drm_block)
+#define DRM_IOCTL_UNBLOCK DRM_IOWR(0x13, struct drm_block)
+#define DRM_IOCTL_CONTROL DRM_IOW( 0x14, struct drm_control)
+#define DRM_IOCTL_ADD_MAP DRM_IOWR(0x15, struct drm_map)
+#define DRM_IOCTL_ADD_BUFS DRM_IOWR(0x16, struct drm_buf_desc)
+#define DRM_IOCTL_MARK_BUFS DRM_IOW( 0x17, struct drm_buf_desc)
+#define DRM_IOCTL_INFO_BUFS DRM_IOWR(0x18, struct drm_buf_info)
+#define DRM_IOCTL_MAP_BUFS DRM_IOWR(0x19, struct drm_buf_map)
+#define DRM_IOCTL_FREE_BUFS DRM_IOW( 0x1a, struct drm_buf_free)
+
+#define DRM_IOCTL_RM_MAP DRM_IOW( 0x1b, struct drm_map)
+
+#define DRM_IOCTL_SET_SAREA_CTX DRM_IOW( 0x1c, struct drm_ctx_priv_map)
+#define DRM_IOCTL_GET_SAREA_CTX DRM_IOWR(0x1d, struct drm_ctx_priv_map)
+
+#define DRM_IOCTL_SET_MASTER DRM_IO(0x1e)
+#define DRM_IOCTL_DROP_MASTER DRM_IO(0x1f)
+
+#define DRM_IOCTL_ADD_CTX DRM_IOWR(0x20, struct drm_ctx)
+#define DRM_IOCTL_RM_CTX DRM_IOWR(0x21, struct drm_ctx)
+#define DRM_IOCTL_MOD_CTX DRM_IOW( 0x22, struct drm_ctx)
+#define DRM_IOCTL_GET_CTX DRM_IOWR(0x23, struct drm_ctx)
+#define DRM_IOCTL_SWITCH_CTX DRM_IOW( 0x24, struct drm_ctx)
+#define DRM_IOCTL_NEW_CTX DRM_IOW( 0x25, struct drm_ctx)
+#define DRM_IOCTL_RES_CTX DRM_IOWR(0x26, struct drm_ctx_res)
+#define DRM_IOCTL_ADD_DRAW DRM_IOWR(0x27, struct drm_draw)
+#define DRM_IOCTL_RM_DRAW DRM_IOWR(0x28, struct drm_draw)
+#define DRM_IOCTL_DMA DRM_IOWR(0x29, struct drm_dma)
+#define DRM_IOCTL_LOCK DRM_IOW( 0x2a, struct drm_lock)
+#define DRM_IOCTL_UNLOCK DRM_IOW( 0x2b, struct drm_lock)
+#define DRM_IOCTL_FINISH DRM_IOW( 0x2c, struct drm_lock)
+
+#define DRM_IOCTL_PRIME_HANDLE_TO_FD DRM_IOWR(0x2d, struct drm_prime_handle)
+#define DRM_IOCTL_PRIME_FD_TO_HANDLE DRM_IOWR(0x2e, struct drm_prime_handle)
+
+#define DRM_IOCTL_AGP_ACQUIRE DRM_IO( 0x30)
+#define DRM_IOCTL_AGP_RELEASE DRM_IO( 0x31)
+#define DRM_IOCTL_AGP_ENABLE DRM_IOW( 0x32, struct drm_agp_mode)
+#define DRM_IOCTL_AGP_INFO DRM_IOR( 0x33, struct drm_agp_info)
+#define DRM_IOCTL_AGP_ALLOC DRM_IOWR(0x34, struct drm_agp_buffer)
+#define DRM_IOCTL_AGP_FREE DRM_IOW( 0x35, struct drm_agp_buffer)
+#define DRM_IOCTL_AGP_BIND DRM_IOW( 0x36, struct drm_agp_binding)
+#define DRM_IOCTL_AGP_UNBIND DRM_IOW( 0x37, struct drm_agp_binding)
+
+#define DRM_IOCTL_SG_ALLOC DRM_IOWR(0x38, struct drm_scatter_gather)
+#define DRM_IOCTL_SG_FREE DRM_IOW( 0x39, struct drm_scatter_gather)
+
+#define DRM_IOCTL_WAIT_VBLANK DRM_IOWR(0x3a, union drm_wait_vblank)
+
+#define DRM_IOCTL_CRTC_GET_SEQUENCE DRM_IOWR(0x3b, struct drm_crtc_get_sequence)
+#define DRM_IOCTL_CRTC_QUEUE_SEQUENCE DRM_IOWR(0x3c, struct drm_crtc_queue_sequence)
+
+#define DRM_IOCTL_UPDATE_DRAW DRM_IOW(0x3f, struct drm_update_draw)
+
+#define DRM_IOCTL_MODE_GETRESOURCES DRM_IOWR(0xA0, struct drm_mode_card_res)
+#define DRM_IOCTL_MODE_GETCRTC DRM_IOWR(0xA1, struct drm_mode_crtc)
+#define DRM_IOCTL_MODE_SETCRTC DRM_IOWR(0xA2, struct drm_mode_crtc)
+#define DRM_IOCTL_MODE_CURSOR DRM_IOWR(0xA3, struct drm_mode_cursor)
+#define DRM_IOCTL_MODE_GETGAMMA DRM_IOWR(0xA4, struct drm_mode_crtc_lut)
+#define DRM_IOCTL_MODE_SETGAMMA DRM_IOWR(0xA5, struct drm_mode_crtc_lut)
+#define DRM_IOCTL_MODE_GETENCODER DRM_IOWR(0xA6, struct drm_mode_get_encoder)
+#define DRM_IOCTL_MODE_GETCONNECTOR DRM_IOWR(0xA7, struct drm_mode_get_connector)
+#define DRM_IOCTL_MODE_ATTACHMODE DRM_IOWR(0xA8, struct drm_mode_mode_cmd) /* deprecated (never worked) */
+#define DRM_IOCTL_MODE_DETACHMODE DRM_IOWR(0xA9, struct drm_mode_mode_cmd) /* deprecated (never worked) */
+
+#define DRM_IOCTL_MODE_GETPROPERTY DRM_IOWR(0xAA, struct drm_mode_get_property)
+#define DRM_IOCTL_MODE_SETPROPERTY DRM_IOWR(0xAB, struct drm_mode_connector_set_property)
+#define DRM_IOCTL_MODE_GETPROPBLOB DRM_IOWR(0xAC, struct drm_mode_get_blob)
+#define DRM_IOCTL_MODE_GETFB DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
+#define DRM_IOCTL_MODE_ADDFB DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
+/**
+ * DRM_IOCTL_MODE_RMFB - Remove a framebuffer.
+ *
+ * This removes a framebuffer previously added via ADDFB/ADDFB2. The IOCTL
+ * argument is a framebuffer object ID.
+ *
+ * Warning: removing a framebuffer currently in-use on an enabled plane will
+ * disable that plane. The CRTC the plane is linked to may also be disabled
+ * (depending on driver capabilities).
+ */
+#define DRM_IOCTL_MODE_RMFB DRM_IOWR(0xAF, unsigned int)
+#define DRM_IOCTL_MODE_PAGE_FLIP DRM_IOWR(0xB0, struct drm_mode_crtc_page_flip)
+#define DRM_IOCTL_MODE_DIRTYFB DRM_IOWR(0xB1, struct drm_mode_fb_dirty_cmd)
+
+#define DRM_IOCTL_MODE_CREATE_DUMB DRM_IOWR(0xB2, struct drm_mode_create_dumb)
+#define DRM_IOCTL_MODE_MAP_DUMB DRM_IOWR(0xB3, struct drm_mode_map_dumb)
+#define DRM_IOCTL_MODE_DESTROY_DUMB DRM_IOWR(0xB4, struct drm_mode_destroy_dumb)
+#define DRM_IOCTL_MODE_GETPLANERESOURCES DRM_IOWR(0xB5, struct drm_mode_get_plane_res)
+#define DRM_IOCTL_MODE_GETPLANE DRM_IOWR(0xB6, struct drm_mode_get_plane)
+#define DRM_IOCTL_MODE_SETPLANE DRM_IOWR(0xB7, struct drm_mode_set_plane)
+#define DRM_IOCTL_MODE_ADDFB2 DRM_IOWR(0xB8, struct drm_mode_fb_cmd2)
+#define DRM_IOCTL_MODE_OBJ_GETPROPERTIES DRM_IOWR(0xB9, struct drm_mode_obj_get_properties)
+#define DRM_IOCTL_MODE_OBJ_SETPROPERTY DRM_IOWR(0xBA, struct drm_mode_obj_set_property)
+#define DRM_IOCTL_MODE_CURSOR2 DRM_IOWR(0xBB, struct drm_mode_cursor2)
+#define DRM_IOCTL_MODE_ATOMIC DRM_IOWR(0xBC, struct drm_mode_atomic)
+#define DRM_IOCTL_MODE_CREATEPROPBLOB DRM_IOWR(0xBD, struct drm_mode_create_blob)
+#define DRM_IOCTL_MODE_DESTROYPROPBLOB DRM_IOWR(0xBE, struct drm_mode_destroy_blob)
+
+#define DRM_IOCTL_SYNCOBJ_CREATE DRM_IOWR(0xBF, struct drm_syncobj_create)
+#define DRM_IOCTL_SYNCOBJ_DESTROY DRM_IOWR(0xC0, struct drm_syncobj_destroy)
+#define DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD DRM_IOWR(0xC1, struct drm_syncobj_handle)
+#define DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE DRM_IOWR(0xC2, struct drm_syncobj_handle)
+#define DRM_IOCTL_SYNCOBJ_WAIT DRM_IOWR(0xC3, struct drm_syncobj_wait)
+#define DRM_IOCTL_SYNCOBJ_RESET DRM_IOWR(0xC4, struct drm_syncobj_array)
+#define DRM_IOCTL_SYNCOBJ_SIGNAL DRM_IOWR(0xC5, struct drm_syncobj_array)
+
+#define DRM_IOCTL_MODE_CREATE_LEASE DRM_IOWR(0xC6, struct drm_mode_create_lease)
+#define DRM_IOCTL_MODE_LIST_LESSEES DRM_IOWR(0xC7, struct drm_mode_list_lessees)
+#define DRM_IOCTL_MODE_GET_LEASE DRM_IOWR(0xC8, struct drm_mode_get_lease)
+#define DRM_IOCTL_MODE_REVOKE_LEASE DRM_IOWR(0xC9, struct drm_mode_revoke_lease)
+
+#define DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT DRM_IOWR(0xCA, struct drm_syncobj_timeline_wait)
+#define DRM_IOCTL_SYNCOBJ_QUERY DRM_IOWR(0xCB, struct drm_syncobj_timeline_array)
+#define DRM_IOCTL_SYNCOBJ_TRANSFER DRM_IOWR(0xCC, struct drm_syncobj_transfer)
+#define DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL DRM_IOWR(0xCD, struct drm_syncobj_timeline_array)
+
+#define DRM_IOCTL_MODE_GETFB2 DRM_IOWR(0xCE, struct drm_mode_fb_cmd2)
+
+/*
+ * Device specific ioctls should only be in their respective headers
+ * The device specific ioctl range is from 0x40 to 0x9f.
+ * Generic IOCTLS restart at 0xA0.
+ *
+ * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and
+ * drmCommandReadWrite().
+ */
+#define DRM_COMMAND_BASE 0x40
+#define DRM_COMMAND_END 0xA0
+
+/*
+ * Header for events written back to userspace on the drm fd. The
+ * type defines the type of event, the length specifies the total
+ * length of the event (including the header), and user_data is
+ * typically a 64 bit value passed with the ioctl that triggered the
+ * event. A read on the drm fd will always only return complete
+ * events, that is, if for example the read buffer is 100 bytes, and
+ * there are two 64 byte events pending, only one will be returned.
+ *
+ * Event types 0 - 0x7fffffff are generic drm events, 0x80000000 and
+ * up are chipset specific.
+ */
+struct drm_event {
+ __u32 type;
+ __u32 length;
+};
+
+#define DRM_EVENT_VBLANK 0x01
+#define DRM_EVENT_FLIP_COMPLETE 0x02
+#define DRM_EVENT_CRTC_SEQUENCE 0x03
+
+struct drm_event_vblank {
+ struct drm_event base;
+ __u64 user_data;
+ __u32 tv_sec;
+ __u32 tv_usec;
+ __u32 sequence;
+ __u32 crtc_id; /* 0 on older kernels that do not support this */
+};
+
+/* Event delivered at sequence. Time stamp marks when the first pixel
+ * of the refresh cycle leaves the display engine for the display
+ */
+struct drm_event_crtc_sequence {
+ struct drm_event base;
+ __u64 user_data;
+ __s64 time_ns;
+ __u64 sequence;
+};
+
+/* typedef area */
+typedef struct drm_clip_rect drm_clip_rect_t;
+typedef struct drm_drawable_info drm_drawable_info_t;
+typedef struct drm_tex_region drm_tex_region_t;
+typedef struct drm_hw_lock drm_hw_lock_t;
+typedef struct drm_version drm_version_t;
+typedef struct drm_unique drm_unique_t;
+typedef struct drm_list drm_list_t;
+typedef struct drm_block drm_block_t;
+typedef struct drm_control drm_control_t;
+typedef enum drm_map_type drm_map_type_t;
+typedef enum drm_map_flags drm_map_flags_t;
+typedef struct drm_ctx_priv_map drm_ctx_priv_map_t;
+typedef struct drm_map drm_map_t;
+typedef struct drm_client drm_client_t;
+typedef enum drm_stat_type drm_stat_type_t;
+typedef struct drm_stats drm_stats_t;
+typedef enum drm_lock_flags drm_lock_flags_t;
+typedef struct drm_lock drm_lock_t;
+typedef enum drm_dma_flags drm_dma_flags_t;
+typedef struct drm_buf_desc drm_buf_desc_t;
+typedef struct drm_buf_info drm_buf_info_t;
+typedef struct drm_buf_free drm_buf_free_t;
+typedef struct drm_buf_pub drm_buf_pub_t;
+typedef struct drm_buf_map drm_buf_map_t;
+typedef struct drm_dma drm_dma_t;
+typedef union drm_wait_vblank drm_wait_vblank_t;
+typedef struct drm_agp_mode drm_agp_mode_t;
+typedef enum drm_ctx_flags drm_ctx_flags_t;
+typedef struct drm_ctx drm_ctx_t;
+typedef struct drm_ctx_res drm_ctx_res_t;
+typedef struct drm_draw drm_draw_t;
+typedef struct drm_update_draw drm_update_draw_t;
+typedef struct drm_auth drm_auth_t;
+typedef struct drm_irq_busid drm_irq_busid_t;
+typedef enum drm_vblank_seq_type drm_vblank_seq_type_t;
+
+typedef struct drm_agp_buffer drm_agp_buffer_t;
+typedef struct drm_agp_binding drm_agp_binding_t;
+typedef struct drm_agp_info drm_agp_info_t;
+typedef struct drm_scatter_gather drm_scatter_gather_t;
+typedef struct drm_set_version drm_set_version_t;
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
diff --git a/third_party/drm/drm/drm_fourcc.h b/third_party/drm/drm/drm_fourcc.h
new file mode 100644
index 0000000..4ececa8
--- /dev/null
+++ b/third_party/drm/drm/drm_fourcc.h
@@ -0,0 +1,1377 @@
+/*
+ * Copyright 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef DRM_FOURCC_H
+#define DRM_FOURCC_H
+
+#include "drm.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/**
+ * DOC: overview
+ *
+ * In the DRM subsystem, framebuffer pixel formats are described using the
+ * fourcc codes defined in `include/uapi/drm/drm_fourcc.h`. In addition to the
+ * fourcc code, a Format Modifier may optionally be provided, in order to
+ * further describe the buffer's format - for example tiling or compression.
+ *
+ * Format Modifiers
+ * ----------------
+ *
+ * Format modifiers are used in conjunction with a fourcc code, forming a
+ * unique fourcc:modifier pair. This format:modifier pair must fully define the
+ * format and data layout of the buffer, and should be the only way to describe
+ * that particular buffer.
+ *
+ * Having multiple fourcc:modifier pairs which describe the same layout should
+ * be avoided, as such aliases run the risk of different drivers exposing
+ * different names for the same data format, forcing userspace to understand
+ * that they are aliases.
+ *
+ * Format modifiers may change any property of the buffer, including the number
+ * of planes and/or the required allocation size. Format modifiers are
+ * vendor-namespaced, and as such the relationship between a fourcc code and a
+ * modifier is specific to the modifer being used. For example, some modifiers
+ * may preserve meaning - such as number of planes - from the fourcc code,
+ * whereas others may not.
+ *
+ * Modifiers must uniquely encode buffer layout. In other words, a buffer must
+ * match only a single modifier. A modifier must not be a subset of layouts of
+ * another modifier. For instance, it's incorrect to encode pitch alignment in
+ * a modifier: a buffer may match a 64-pixel aligned modifier and a 32-pixel
+ * aligned modifier. That said, modifiers can have implicit minimal
+ * requirements.
+ *
+ * For modifiers where the combination of fourcc code and modifier can alias,
+ * a canonical pair needs to be defined and used by all drivers. Preferred
+ * combinations are also encouraged where all combinations might lead to
+ * confusion and unnecessarily reduced interoperability. An example for the
+ * latter is AFBC, where the ABGR layouts are preferred over ARGB layouts.
+ *
+ * There are two kinds of modifier users:
+ *
+ * - Kernel and user-space drivers: for drivers it's important that modifiers
+ * don't alias, otherwise two drivers might support the same format but use
+ * different aliases, preventing them from sharing buffers in an efficient
+ * format.
+ * - Higher-level programs interfacing with KMS/GBM/EGL/Vulkan/etc: these users
+ * see modifiers as opaque tokens they can check for equality and intersect.
+ * These users musn't need to know to reason about the modifier value
+ * (i.e. they are not expected to extract information out of the modifier).
+ *
+ * Vendors should document their modifier usage in as much detail as
+ * possible, to ensure maximum compatibility across devices, drivers and
+ * applications.
+ *
+ * The authoritative list of format modifier codes is found in
+ * `include/uapi/drm/drm_fourcc.h`
+ */
+
+#define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \
+ ((__u32)(c) << 16) | ((__u32)(d) << 24))
+
+#define DRM_FORMAT_BIG_ENDIAN (1U<<31) /* format is big endian instead of little endian */
+
+/* Reserve 0 for the invalid format specifier */
+#define DRM_FORMAT_INVALID 0
+
+/* color index */
+#define DRM_FORMAT_C8 fourcc_code('C', '8', ' ', ' ') /* [7:0] C */
+
+/* 8 bpp Red */
+#define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
+
+/* 10 bpp Red */
+#define DRM_FORMAT_R10 fourcc_code('R', '1', '0', ' ') /* [15:0] x:R 6:10 little endian */
+
+/* 12 bpp Red */
+#define DRM_FORMAT_R12 fourcc_code('R', '1', '2', ' ') /* [15:0] x:R 4:12 little endian */
+
+/* 16 bpp Red */
+#define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */
+
+/* 16 bpp RG */
+#define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
+#define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
+
+/* 32 bpp RG */
+#define DRM_FORMAT_RG1616 fourcc_code('R', 'G', '3', '2') /* [31:0] R:G 16:16 little endian */
+#define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] G:R 16:16 little endian */
+
+/* 8 bpp RGB */
+#define DRM_FORMAT_RGB332 fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
+#define DRM_FORMAT_BGR233 fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
+
+/* 16 bpp RGB */
+#define DRM_FORMAT_XRGB4444 fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
+#define DRM_FORMAT_XBGR4444 fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
+#define DRM_FORMAT_RGBX4444 fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
+#define DRM_FORMAT_BGRX4444 fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */
+
+#define DRM_FORMAT_ARGB4444 fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
+#define DRM_FORMAT_ABGR4444 fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
+#define DRM_FORMAT_RGBA4444 fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
+#define DRM_FORMAT_BGRA4444 fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */
+
+#define DRM_FORMAT_XRGB1555 fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
+#define DRM_FORMAT_XBGR1555 fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
+#define DRM_FORMAT_RGBX5551 fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
+#define DRM_FORMAT_BGRX5551 fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */
+
+#define DRM_FORMAT_ARGB1555 fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
+#define DRM_FORMAT_ABGR1555 fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
+#define DRM_FORMAT_RGBA5551 fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
+#define DRM_FORMAT_BGRA5551 fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */
+
+#define DRM_FORMAT_RGB565 fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
+#define DRM_FORMAT_BGR565 fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */
+
+/* 24 bpp RGB */
+#define DRM_FORMAT_RGB888 fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
+#define DRM_FORMAT_BGR888 fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */
+
+/* 32 bpp RGB */
+#define DRM_FORMAT_XRGB8888 fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
+#define DRM_FORMAT_XBGR8888 fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
+#define DRM_FORMAT_RGBX8888 fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
+#define DRM_FORMAT_BGRX8888 fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */
+
+#define DRM_FORMAT_ARGB8888 fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
+#define DRM_FORMAT_ABGR8888 fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
+#define DRM_FORMAT_RGBA8888 fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
+#define DRM_FORMAT_BGRA8888 fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */
+
+#define DRM_FORMAT_XRGB2101010 fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
+#define DRM_FORMAT_XBGR2101010 fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
+#define DRM_FORMAT_RGBX1010102 fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
+#define DRM_FORMAT_BGRX1010102 fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */
+
+#define DRM_FORMAT_ARGB2101010 fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
+#define DRM_FORMAT_ABGR2101010 fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
+#define DRM_FORMAT_RGBA1010102 fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
+#define DRM_FORMAT_BGRA1010102 fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */
+
+/* 64 bpp RGB */
+#define DRM_FORMAT_XRGB16161616 fourcc_code('X', 'R', '4', '8') /* [63:0] x:R:G:B 16:16:16:16 little endian */
+#define DRM_FORMAT_XBGR16161616 fourcc_code('X', 'B', '4', '8') /* [63:0] x:B:G:R 16:16:16:16 little endian */
+
+#define DRM_FORMAT_ARGB16161616 fourcc_code('A', 'R', '4', '8') /* [63:0] A:R:G:B 16:16:16:16 little endian */
+#define DRM_FORMAT_ABGR16161616 fourcc_code('A', 'B', '4', '8') /* [63:0] A:B:G:R 16:16:16:16 little endian */
+
+/*
+ * Floating point 64bpp RGB
+ * IEEE 754-2008 binary16 half-precision float
+ * [15:0] sign:exponent:mantissa 1:5:10
+ */
+#define DRM_FORMAT_XRGB16161616F fourcc_code('X', 'R', '4', 'H') /* [63:0] x:R:G:B 16:16:16:16 little endian */
+#define DRM_FORMAT_XBGR16161616F fourcc_code('X', 'B', '4', 'H') /* [63:0] x:B:G:R 16:16:16:16 little endian */
+
+#define DRM_FORMAT_ARGB16161616F fourcc_code('A', 'R', '4', 'H') /* [63:0] A:R:G:B 16:16:16:16 little endian */
+#define DRM_FORMAT_ABGR16161616F fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */
+
+/*
+ * RGBA format with 10-bit components packed in 64-bit per pixel, with 6 bits
+ * of unused padding per component:
+ */
+#define DRM_FORMAT_AXBXGXRX106106106106 fourcc_code('A', 'B', '1', '0') /* [63:0] A:x:B:x:G:x:R:x 10:6:10:6:10:6:10:6 little endian */
+
+/* packed YCbCr */
+#define DRM_FORMAT_YUYV fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
+#define DRM_FORMAT_YVYU fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
+#define DRM_FORMAT_UYVY fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
+#define DRM_FORMAT_VYUY fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
+
+#define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
+#define DRM_FORMAT_XYUV8888 fourcc_code('X', 'Y', 'U', 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */
+#define DRM_FORMAT_VUY888 fourcc_code('V', 'U', '2', '4') /* [23:0] Cr:Cb:Y 8:8:8 little endian */
+#define DRM_FORMAT_VUY101010 fourcc_code('V', 'U', '3', '0') /* Y followed by U then V, 10:10:10. Non-linear modifier only */
+
+/*
+ * packed Y2xx indicate for each component, xx valid data occupy msb
+ * 16-xx padding occupy lsb
+ */
+#define DRM_FORMAT_Y210 fourcc_code('Y', '2', '1', '0') /* [63:0] Cr0:0:Y1:0:Cb0:0:Y0:0 10:6:10:6:10:6:10:6 little endian per 2 Y pixels */
+#define DRM_FORMAT_Y212 fourcc_code('Y', '2', '1', '2') /* [63:0] Cr0:0:Y1:0:Cb0:0:Y0:0 12:4:12:4:12:4:12:4 little endian per 2 Y pixels */
+#define DRM_FORMAT_Y216 fourcc_code('Y', '2', '1', '6') /* [63:0] Cr0:Y1:Cb0:Y0 16:16:16:16 little endian per 2 Y pixels */
+
+/*
+ * packed Y4xx indicate for each component, xx valid data occupy msb
+ * 16-xx padding occupy lsb except Y410
+ */
+#define DRM_FORMAT_Y410 fourcc_code('Y', '4', '1', '0') /* [31:0] A:Cr:Y:Cb 2:10:10:10 little endian */
+#define DRM_FORMAT_Y412 fourcc_code('Y', '4', '1', '2') /* [63:0] A:0:Cr:0:Y:0:Cb:0 12:4:12:4:12:4:12:4 little endian */
+#define DRM_FORMAT_Y416 fourcc_code('Y', '4', '1', '6') /* [63:0] A:Cr:Y:Cb 16:16:16:16 little endian */
+
+#define DRM_FORMAT_XVYU2101010 fourcc_code('X', 'V', '3', '0') /* [31:0] X:Cr:Y:Cb 2:10:10:10 little endian */
+#define DRM_FORMAT_XVYU12_16161616 fourcc_code('X', 'V', '3', '6') /* [63:0] X:0:Cr:0:Y:0:Cb:0 12:4:12:4:12:4:12:4 little endian */
+#define DRM_FORMAT_XVYU16161616 fourcc_code('X', 'V', '4', '8') /* [63:0] X:Cr:Y:Cb 16:16:16:16 little endian */
+
+/*
+ * packed YCbCr420 2x2 tiled formats
+ * first 64 bits will contain Y,Cb,Cr components for a 2x2 tile
+ */
+/* [63:0] A3:A2:Y3:0:Cr0:0:Y2:0:A1:A0:Y1:0:Cb0:0:Y0:0 1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
+#define DRM_FORMAT_Y0L0 fourcc_code('Y', '0', 'L', '0')
+/* [63:0] X3:X2:Y3:0:Cr0:0:Y2:0:X1:X0:Y1:0:Cb0:0:Y0:0 1:1:8:2:8:2:8:2:1:1:8:2:8:2:8:2 little endian */
+#define DRM_FORMAT_X0L0 fourcc_code('X', '0', 'L', '0')
+
+/* [63:0] A3:A2:Y3:Cr0:Y2:A1:A0:Y1:Cb0:Y0 1:1:10:10:10:1:1:10:10:10 little endian */
+#define DRM_FORMAT_Y0L2 fourcc_code('Y', '0', 'L', '2')
+/* [63:0] X3:X2:Y3:Cr0:Y2:X1:X0:Y1:Cb0:Y0 1:1:10:10:10:1:1:10:10:10 little endian */
+#define DRM_FORMAT_X0L2 fourcc_code('X', '0', 'L', '2')
+
+/*
+ * 1-plane YUV 4:2:0
+ * In these formats, the component ordering is specified (Y, followed by U
+ * then V), but the exact Linear layout is undefined.
+ * These formats can only be used with a non-Linear modifier.
+ */
+#define DRM_FORMAT_YUV420_8BIT fourcc_code('Y', 'U', '0', '8')
+#define DRM_FORMAT_YUV420_10BIT fourcc_code('Y', 'U', '1', '0')
+
+/*
+ * 2 plane RGB + A
+ * index 0 = RGB plane, same format as the corresponding non _A8 format has
+ * index 1 = A plane, [7:0] A
+ */
+#define DRM_FORMAT_XRGB8888_A8 fourcc_code('X', 'R', 'A', '8')
+#define DRM_FORMAT_XBGR8888_A8 fourcc_code('X', 'B', 'A', '8')
+#define DRM_FORMAT_RGBX8888_A8 fourcc_code('R', 'X', 'A', '8')
+#define DRM_FORMAT_BGRX8888_A8 fourcc_code('B', 'X', 'A', '8')
+#define DRM_FORMAT_RGB888_A8 fourcc_code('R', '8', 'A', '8')
+#define DRM_FORMAT_BGR888_A8 fourcc_code('B', '8', 'A', '8')
+#define DRM_FORMAT_RGB565_A8 fourcc_code('R', '5', 'A', '8')
+#define DRM_FORMAT_BGR565_A8 fourcc_code('B', '5', 'A', '8')
+
+/*
+ * 2 plane YCbCr
+ * index 0 = Y plane, [7:0] Y
+ * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
+ * or
+ * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
+ */
+#define DRM_FORMAT_NV12 fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */
+#define DRM_FORMAT_NV21 fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
+#define DRM_FORMAT_NV16 fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
+#define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
+#define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
+#define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
+/*
+ * 2 plane YCbCr
+ * index 0 = Y plane, [39:0] Y3:Y2:Y1:Y0 little endian
+ * index 1 = Cr:Cb plane, [39:0] Cr1:Cb1:Cr0:Cb0 little endian
+ */
+#define DRM_FORMAT_NV15 fourcc_code('N', 'V', '1', '5') /* 2x2 subsampled Cr:Cb plane */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [10:6] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian
+ */
+#define DRM_FORMAT_P210 fourcc_code('P', '2', '1', '0') /* 2x1 subsampled Cr:Cb plane, 10 bit per channel */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [10:6] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian
+ */
+#define DRM_FORMAT_P010 fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cr:Cb plane 10 bits per channel */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [12:4] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [12:4:12:4] little endian
+ */
+#define DRM_FORMAT_P012 fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cr:Cb plane 12 bits per channel */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:Cb [16:16] little endian
+ */
+#define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */
+
+/* 3 plane non-subsampled (444) YCbCr
+ * 16 bits per component, but only 10 bits are used and 6 bits are padded
+ * index 0: Y plane, [15:0] Y:x [10:6] little endian
+ * index 1: Cb plane, [15:0] Cb:x [10:6] little endian
+ * index 2: Cr plane, [15:0] Cr:x [10:6] little endian
+ */
+#define DRM_FORMAT_Q410 fourcc_code('Q', '4', '1', '0')
+
+/* 3 plane non-subsampled (444) YCrCb
+ * 16 bits per component, but only 10 bits are used and 6 bits are padded
+ * index 0: Y plane, [15:0] Y:x [10:6] little endian
+ * index 1: Cr plane, [15:0] Cr:x [10:6] little endian
+ * index 2: Cb plane, [15:0] Cb:x [10:6] little endian
+ */
+#define DRM_FORMAT_Q401 fourcc_code('Q', '4', '0', '1')
+
+/*
+ * 3 plane YCbCr
+ * index 0: Y plane, [7:0] Y
+ * index 1: Cb plane, [7:0] Cb
+ * index 2: Cr plane, [7:0] Cr
+ * or
+ * index 1: Cr plane, [7:0] Cr
+ * index 2: Cb plane, [7:0] Cb
+ */
+#define DRM_FORMAT_YUV410 fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU410 fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV411 fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU411 fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV420 fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU420 fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV422 fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU422 fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV444 fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU444 fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */
+
+
+/*
+ * Format Modifiers:
+ *
+ * Format modifiers describe, typically, a re-ordering or modification
+ * of the data in a plane of an FB. This can be used to express tiled/
+ * swizzled formats, or compression, or a combination of the two.
+ *
+ * The upper 8 bits of the format modifier are a vendor-id as assigned
+ * below. The lower 56 bits are assigned as vendor sees fit.
+ */
+
+/* Vendor Ids: */
+#define DRM_FORMAT_MOD_VENDOR_NONE 0
+#define DRM_FORMAT_MOD_VENDOR_INTEL 0x01
+#define DRM_FORMAT_MOD_VENDOR_AMD 0x02
+#define DRM_FORMAT_MOD_VENDOR_NVIDIA 0x03
+#define DRM_FORMAT_MOD_VENDOR_SAMSUNG 0x04
+#define DRM_FORMAT_MOD_VENDOR_QCOM 0x05
+#define DRM_FORMAT_MOD_VENDOR_VIVANTE 0x06
+#define DRM_FORMAT_MOD_VENDOR_BROADCOM 0x07
+#define DRM_FORMAT_MOD_VENDOR_ARM 0x08
+#define DRM_FORMAT_MOD_VENDOR_ALLWINNER 0x09
+#define DRM_FORMAT_MOD_VENDOR_AMLOGIC 0x0a
+
+/* add more to the end as needed */
+
+#define DRM_FORMAT_RESERVED ((1ULL << 56) - 1)
+
+#define fourcc_mod_get_vendor(modifier) \
+ (((modifier) >> 56) & 0xff)
+
+#define fourcc_mod_is_vendor(modifier, vendor) \
+ (fourcc_mod_get_vendor(modifier) == DRM_FORMAT_MOD_VENDOR_## vendor)
+
+#define fourcc_mod_code(vendor, val) \
+ ((((__u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | ((val) & 0x00ffffffffffffffULL))
+
+/*
+ * Format Modifier tokens:
+ *
+ * When adding a new token please document the layout with a code comment,
+ * similar to the fourcc codes above. drm_fourcc.h is considered the
+ * authoritative source for all of these.
+ *
+ * Generic modifier names:
+ *
+ * DRM_FORMAT_MOD_GENERIC_* definitions are used to provide vendor-neutral names
+ * for layouts which are common across multiple vendors. To preserve
+ * compatibility, in cases where a vendor-specific definition already exists and
+ * a generic name for it is desired, the common name is a purely symbolic alias
+ * and must use the same numerical value as the original definition.
+ *
+ * Note that generic names should only be used for modifiers which describe
+ * generic layouts (such as pixel re-ordering), which may have
+ * independently-developed support across multiple vendors.
+ *
+ * In future cases where a generic layout is identified before merging with a
+ * vendor-specific modifier, a new 'GENERIC' vendor or modifier using vendor
+ * 'NONE' could be considered. This should only be for obvious, exceptional
+ * cases to avoid polluting the 'GENERIC' namespace with modifiers which only
+ * apply to a single vendor.
+ *
+ * Generic names should not be used for cases where multiple hardware vendors
+ * have implementations of the same standardised compression scheme (such as
+ * AFBC). In those cases, all implementations should use the same format
+ * modifier(s), reflecting the vendor of the standard.
+ */
+
+#define DRM_FORMAT_MOD_GENERIC_16_16_TILE DRM_FORMAT_MOD_SAMSUNG_16_16_TILE
+
+/*
+ * Invalid Modifier
+ *
+ * This modifier can be used as a sentinel to terminate the format modifiers
+ * list, or to initialize a variable with an invalid modifier. It might also be
+ * used to report an error back to userspace for certain APIs.
+ */
+#define DRM_FORMAT_MOD_INVALID fourcc_mod_code(NONE, DRM_FORMAT_RESERVED)
+
+/*
+ * Linear Layout
+ *
+ * Just plain linear layout. Note that this is different from no specifying any
+ * modifier (e.g. not setting DRM_MODE_FB_MODIFIERS in the DRM_ADDFB2 ioctl),
+ * which tells the driver to also take driver-internal information into account
+ * and so might actually result in a tiled framebuffer.
+ */
+#define DRM_FORMAT_MOD_LINEAR fourcc_mod_code(NONE, 0)
+
+/*
+ * Deprecated: use DRM_FORMAT_MOD_LINEAR instead
+ *
+ * The "none" format modifier doesn't actually mean that the modifier is
+ * implicit, instead it means that the layout is linear. Whether modifiers are
+ * used is out-of-band information carried in an API-specific way (e.g. in a
+ * flag for drm_mode_fb_cmd2).
+ */
+#define DRM_FORMAT_MOD_NONE 0
+
+/* Intel framebuffer modifiers */
+
+/*
+ * Intel X-tiling layout
+ *
+ * This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb)
+ * in row-major layout. Within the tile bytes are laid out row-major, with
+ * a platform-dependent stride. On top of that the memory can apply
+ * platform-depending swizzling of some higher address bits into bit6.
+ *
+ * Note that this layout is only accurate on intel gen 8+ or valleyview chipsets.
+ * On earlier platforms the is highly platforms specific and not useful for
+ * cross-driver sharing. It exists since on a given platform it does uniquely
+ * identify the layout in a simple way for i915-specific userspace, which
+ * facilitated conversion of userspace to modifiers. Additionally the exact
+ * format on some really old platforms is not known.
+ */
+#define I915_FORMAT_MOD_X_TILED fourcc_mod_code(INTEL, 1)
+
+/*
+ * Intel Y-tiling layout
+ *
+ * This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb)
+ * in row-major layout. Within the tile bytes are laid out in OWORD (16 bytes)
+ * chunks column-major, with a platform-dependent height. On top of that the
+ * memory can apply platform-depending swizzling of some higher address bits
+ * into bit6.
+ *
+ * Note that this layout is only accurate on intel gen 8+ or valleyview chipsets.
+ * On earlier platforms the is highly platforms specific and not useful for
+ * cross-driver sharing. It exists since on a given platform it does uniquely
+ * identify the layout in a simple way for i915-specific userspace, which
+ * facilitated conversion of userspace to modifiers. Additionally the exact
+ * format on some really old platforms is not known.
+ */
+#define I915_FORMAT_MOD_Y_TILED fourcc_mod_code(INTEL, 2)
+
+/*
+ * Intel Yf-tiling layout
+ *
+ * This is a tiled layout using 4Kb tiles in row-major layout.
+ * Within the tile pixels are laid out in 16 256 byte units / sub-tiles which
+ * are arranged in four groups (two wide, two high) with column-major layout.
+ * Each group therefore consits out of four 256 byte units, which are also laid
+ * out as 2x2 column-major.
+ * 256 byte units are made out of four 64 byte blocks of pixels, producing
+ * either a square block or a 2:1 unit.
+ * 64 byte blocks of pixels contain four pixel rows of 16 bytes, where the width
+ * in pixel depends on the pixel depth.
+ */
+#define I915_FORMAT_MOD_Yf_TILED fourcc_mod_code(INTEL, 3)
+
+/*
+ * Intel color control surface (CCS) for render compression
+ *
+ * The framebuffer format must be one of the 8:8:8:8 RGB formats.
+ * The main surface will be plane index 0 and must be Y/Yf-tiled,
+ * the CCS will be plane index 1.
+ *
+ * Each CCS tile matches a 1024x512 pixel area of the main surface.
+ * To match certain aspects of the 3D hardware the CCS is
+ * considered to be made up of normal 128Bx32 Y tiles, Thus
+ * the CCS pitch must be specified in multiples of 128 bytes.
+ *
+ * In reality the CCS tile appears to be a 64Bx64 Y tile, composed
+ * of QWORD (8 bytes) chunks instead of OWORD (16 bytes) chunks.
+ * But that fact is not relevant unless the memory is accessed
+ * directly.
+ */
+#define I915_FORMAT_MOD_Y_TILED_CCS fourcc_mod_code(INTEL, 4)
+#define I915_FORMAT_MOD_Yf_TILED_CCS fourcc_mod_code(INTEL, 5)
+
+/*
+ * Intel color control surfaces (CCS) for Gen-12 render compression.
+ *
+ * The main surface is Y-tiled and at plane index 0, the CCS is linear and
+ * at index 1. A 64B CCS cache line corresponds to an area of 4x1 tiles in
+ * main surface. In other words, 4 bits in CCS map to a main surface cache
+ * line pair. The main surface pitch is required to be a multiple of four
+ * Y-tile widths.
+ */
+#define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS fourcc_mod_code(INTEL, 6)
+
+/*
+ * Intel color control surfaces (CCS) for Gen-12 media compression
+ *
+ * The main surface is Y-tiled and at plane index 0, the CCS is linear and
+ * at index 1. A 64B CCS cache line corresponds to an area of 4x1 tiles in
+ * main surface. In other words, 4 bits in CCS map to a main surface cache
+ * line pair. The main surface pitch is required to be a multiple of four
+ * Y-tile widths. For semi-planar formats like NV12, CCS planes follow the
+ * Y and UV planes i.e., planes 0 and 1 are used for Y and UV surfaces,
+ * planes 2 and 3 for the respective CCS.
+ */
+#define I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS fourcc_mod_code(INTEL, 7)
+
+/*
+ * Intel Color Control Surface with Clear Color (CCS) for Gen-12 render
+ * compression.
+ *
+ * The main surface is Y-tiled and is at plane index 0 whereas CCS is linear
+ * and at index 1. The clear color is stored at index 2, and the pitch should
+ * be ignored. The clear color structure is 256 bits. The first 128 bits
+ * represents Raw Clear Color Red, Green, Blue and Alpha color each represented
+ * by 32 bits. The raw clear color is consumed by the 3d engine and generates
+ * the converted clear color of size 64 bits. The first 32 bits store the Lower
+ * Converted Clear Color value and the next 32 bits store the Higher Converted
+ * Clear Color value when applicable. The Converted Clear Color values are
+ * consumed by the DE. The last 64 bits are used to store Color Discard Enable
+ * and Depth Clear Value Valid which are ignored by the DE. A CCS cache line
+ * corresponds to an area of 4x1 tiles in the main surface. The main surface
+ * pitch is required to be a multiple of 4 tile widths.
+ */
+#define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC fourcc_mod_code(INTEL, 8)
+
+/*
+ * Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks
+ *
+ * Macroblocks are laid in a Z-shape, and each pixel data is following the
+ * standard NV12 style.
+ * As for NV12, an image is the result of two frame buffers: one for Y,
+ * one for the interleaved Cb/Cr components (1/2 the height of the Y buffer).
+ * Alignment requirements are (for each buffer):
+ * - multiple of 128 pixels for the width
+ * - multiple of 32 pixels for the height
+ *
+ * For more information: see https://linuxtv.org/downloads/v4l-dvb-apis/re32.html
+ */
+#define DRM_FORMAT_MOD_SAMSUNG_64_32_TILE fourcc_mod_code(SAMSUNG, 1)
+
+/*
+ * Tiled, 16 (pixels) x 16 (lines) - sized macroblocks
+ *
+ * This is a simple tiled layout using tiles of 16x16 pixels in a row-major
+ * layout. For YCbCr formats Cb/Cr components are taken in such a way that
+ * they correspond to their 16x16 luma block.
+ */
+#define DRM_FORMAT_MOD_SAMSUNG_16_16_TILE fourcc_mod_code(SAMSUNG, 2)
+
+/*
+ * Qualcomm Compressed Format
+ *
+ * Refers to a compressed variant of the base format that is compressed.
+ * Implementation may be platform and base-format specific.
+ *
+ * Each macrotile consists of m x n (mostly 4 x 4) tiles.
+ * Pixel data pitch/stride is aligned with macrotile width.
+ * Pixel data height is aligned with macrotile height.
+ * Entire pixel data buffer is aligned with 4k(bytes).
+ */
+#define DRM_FORMAT_MOD_QCOM_COMPRESSED fourcc_mod_code(QCOM, 1)
+
+/* Vivante framebuffer modifiers */
+
+/*
+ * Vivante 4x4 tiling layout
+ *
+ * This is a simple tiled layout using tiles of 4x4 pixels in a row-major
+ * layout.
+ */
+#define DRM_FORMAT_MOD_VIVANTE_TILED fourcc_mod_code(VIVANTE, 1)
+
+/*
+ * Vivante 64x64 super-tiling layout
+ *
+ * This is a tiled layout using 64x64 pixel super-tiles, where each super-tile
+ * contains 8x4 groups of 2x4 tiles of 4x4 pixels (like above) each, all in row-
+ * major layout.
+ *
+ * For more information: see
+ * https://github.com/etnaviv/etna_viv/blob/master/doc/hardware.md#texture-tiling
+ */
+#define DRM_FORMAT_MOD_VIVANTE_SUPER_TILED fourcc_mod_code(VIVANTE, 2)
+
+/*
+ * Vivante 4x4 tiling layout for dual-pipe
+ *
+ * Same as the 4x4 tiling layout, except every second 4x4 pixel tile starts at a
+ * different base address. Offsets from the base addresses are therefore halved
+ * compared to the non-split tiled layout.
+ */
+#define DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED fourcc_mod_code(VIVANTE, 3)
+
+/*
+ * Vivante 64x64 super-tiling layout for dual-pipe
+ *
+ * Same as the 64x64 super-tiling layout, except every second 4x4 pixel tile
+ * starts at a different base address. Offsets from the base addresses are
+ * therefore halved compared to the non-split super-tiled layout.
+ */
+#define DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED fourcc_mod_code(VIVANTE, 4)
+
+/* NVIDIA frame buffer modifiers */
+
+/*
+ * Tegra Tiled Layout, used by Tegra 2, 3 and 4.
+ *
+ * Pixels are arranged in simple tiles of 16 x 16 bytes.
+ */
+#define DRM_FORMAT_MOD_NVIDIA_TEGRA_TILED fourcc_mod_code(NVIDIA, 1)
+
+/*
+ * Generalized Block Linear layout, used by desktop GPUs starting with NV50/G80,
+ * and Tegra GPUs starting with Tegra K1.
+ *
+ * Pixels are arranged in Groups of Bytes (GOBs). GOB size and layout varies
+ * based on the architecture generation. GOBs themselves are then arranged in
+ * 3D blocks, with the block dimensions (in terms of GOBs) always being a power
+ * of two, and hence expressible as their log2 equivalent (E.g., "2" represents
+ * a block depth or height of "4").
+ *
+ * Chapter 20 "Pixel Memory Formats" of the Tegra X1 TRM describes this format
+ * in full detail.
+ *
+ * Macro
+ * Bits Param Description
+ * ---- ----- -----------------------------------------------------------------
+ *
+ * 3:0 h log2(height) of each block, in GOBs. Placed here for
+ * compatibility with the existing
+ * DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK()-based modifiers.
+ *
+ * 4:4 - Must be 1, to indicate block-linear layout. Necessary for
+ * compatibility with the existing
+ * DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK()-based modifiers.
+ *
+ * 8:5 - Reserved (To support 3D-surfaces with variable log2(depth) block
+ * size). Must be zero.
+ *
+ * Note there is no log2(width) parameter. Some portions of the
+ * hardware support a block width of two gobs, but it is impractical
+ * to use due to lack of support elsewhere, and has no known
+ * benefits.
+ *
+ * 11:9 - Reserved (To support 2D-array textures with variable array stride
+ * in blocks, specified via log2(tile width in blocks)). Must be
+ * zero.
+ *
+ * 19:12 k Page Kind. This value directly maps to a field in the page
+ * tables of all GPUs >= NV50. It affects the exact layout of bits
+ * in memory and can be derived from the tuple
+ *
+ * (format, GPU model, compression type, samples per pixel)
+ *
+ * Where compression type is defined below. If GPU model were
+ * implied by the format modifier, format, or memory buffer, page
+ * kind would not need to be included in the modifier itself, but
+ * since the modifier should define the layout of the associated
+ * memory buffer independent from any device or other context, it
+ * must be included here.
+ *
+ * 21:20 g GOB Height and Page Kind Generation. The height of a GOB changed
+ * starting with Fermi GPUs. Additionally, the mapping between page
+ * kind and bit layout has changed at various points.
+ *
+ * 0 = Gob Height 8, Fermi - Volta, Tegra K1+ Page Kind mapping
+ * 1 = Gob Height 4, G80 - GT2XX Page Kind mapping
+ * 2 = Gob Height 8, Turing+ Page Kind mapping
+ * 3 = Reserved for future use.
+ *
+ * 22:22 s Sector layout. On Tegra GPUs prior to Xavier, there is a further
+ * bit remapping step that occurs at an even lower level than the
+ * page kind and block linear swizzles. This causes the layout of
+ * surfaces mapped in those SOC's GPUs to be incompatible with the
+ * equivalent mapping on other GPUs in the same system.
+ *
+ * 0 = Tegra K1 - Tegra Parker/TX2 Layout.
+ * 1 = Desktop GPU and Tegra Xavier+ Layout
+ *
+ * 25:23 c Lossless Framebuffer Compression type.
+ *
+ * 0 = none
+ * 1 = ROP/3D, layout 1, exact compression format implied by Page
+ * Kind field
+ * 2 = ROP/3D, layout 2, exact compression format implied by Page
+ * Kind field
+ * 3 = CDE horizontal
+ * 4 = CDE vertical
+ * 5 = Reserved for future use
+ * 6 = Reserved for future use
+ * 7 = Reserved for future use
+ *
+ * 55:25 - Reserved for future use. Must be zero.
+ */
+#define DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(c, s, g, k, h) \
+ fourcc_mod_code(NVIDIA, (0x10 | \
+ ((h) & 0xf) | \
+ (((k) & 0xff) << 12) | \
+ (((g) & 0x3) << 20) | \
+ (((s) & 0x1) << 22) | \
+ (((c) & 0x7) << 23)))
+
+/* To grandfather in prior block linear format modifiers to the above layout,
+ * the page kind "0", which corresponds to "pitch/linear" and hence is unusable
+ * with block-linear layouts, is remapped within drivers to the value 0xfe,
+ * which corresponds to the "generic" kind used for simple single-sample
+ * uncompressed color formats on Fermi - Volta GPUs.
+ */
+static __inline__ __u64
+drm_fourcc_canonicalize_nvidia_format_mod(__u64 modifier)
+{
+ if (!(modifier & 0x10) || (modifier & (0xff << 12)))
+ return modifier;
+ else
+ return modifier | (0xfe << 12);
+}
+
+/*
+ * 16Bx2 Block Linear layout, used by Tegra K1 and later
+ *
+ * Pixels are arranged in 64x8 Groups Of Bytes (GOBs). GOBs are then stacked
+ * vertically by a power of 2 (1 to 32 GOBs) to form a block.
+ *
+ * Within a GOB, data is ordered as 16B x 2 lines sectors laid in Z-shape.
+ *
+ * Parameter 'v' is the log2 encoding of the number of GOBs stacked vertically.
+ * Valid values are:
+ *
+ * 0 == ONE_GOB
+ * 1 == TWO_GOBS
+ * 2 == FOUR_GOBS
+ * 3 == EIGHT_GOBS
+ * 4 == SIXTEEN_GOBS
+ * 5 == THIRTYTWO_GOBS
+ *
+ * Chapter 20 "Pixel Memory Formats" of the Tegra X1 TRM describes this format
+ * in full detail.
+ */
+#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(v) \
+ DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(0, 0, 0, 0, (v))
+
+#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_ONE_GOB \
+ DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(0)
+#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_TWO_GOB \
+ DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(1)
+#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_FOUR_GOB \
+ DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(2)
+#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_EIGHT_GOB \
+ DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(3)
+#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_SIXTEEN_GOB \
+ DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(4)
+#define DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK_THIRTYTWO_GOB \
+ DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(5)
+
+/*
+ * Some Broadcom modifiers take parameters, for example the number of
+ * vertical lines in the image. Reserve the lower 32 bits for modifier
+ * type, and the next 24 bits for parameters. Top 8 bits are the
+ * vendor code.
+ */
+#define __fourcc_mod_broadcom_param_shift 8
+#define __fourcc_mod_broadcom_param_bits 48
+#define fourcc_mod_broadcom_code(val, params) \
+ fourcc_mod_code(BROADCOM, ((((__u64)params) << __fourcc_mod_broadcom_param_shift) | val))
+#define fourcc_mod_broadcom_param(m) \
+ ((int)(((m) >> __fourcc_mod_broadcom_param_shift) & \
+ ((1ULL << __fourcc_mod_broadcom_param_bits) - 1)))
+#define fourcc_mod_broadcom_mod(m) \
+ ((m) & ~(((1ULL << __fourcc_mod_broadcom_param_bits) - 1) << \
+ __fourcc_mod_broadcom_param_shift))
+
+/*
+ * Broadcom VC4 "T" format
+ *
+ * This is the primary layout that the V3D GPU can texture from (it
+ * can't do linear). The T format has:
+ *
+ * - 64b utiles of pixels in a raster-order grid according to cpp. It's 4x4
+ * pixels at 32 bit depth.
+ *
+ * - 1k subtiles made of a 4x4 raster-order grid of 64b utiles (so usually
+ * 16x16 pixels).
+ *
+ * - 4k tiles made of a 2x2 grid of 1k subtiles (so usually 32x32 pixels). On
+ * even 4k tile rows, they're arranged as (BL, TL, TR, BR), and on odd rows
+ * they're (TR, BR, BL, TL), where bottom left is start of memory.
+ *
+ * - an image made of 4k tiles in rows either left-to-right (even rows of 4k
+ * tiles) or right-to-left (odd rows of 4k tiles).
+ */
+#define DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED fourcc_mod_code(BROADCOM, 1)
+
+/*
+ * Broadcom SAND format
+ *
+ * This is the native format that the H.264 codec block uses. For VC4
+ * HVS, it is only valid for H.264 (NV12/21) and RGBA modes.
+ *
+ * The image can be considered to be split into columns, and the
+ * columns are placed consecutively into memory. The width of those
+ * columns can be either 32, 64, 128, or 256 pixels, but in practice
+ * only 128 pixel columns are used.
+ *
+ * The pitch between the start of each column is set to optimally
+ * switch between SDRAM banks. This is passed as the number of lines
+ * of column width in the modifier (we can't use the stride value due
+ * to various core checks that look at it , so you should set the
+ * stride to width*cpp).
+ *
+ * Note that the column height for this format modifier is the same
+ * for all of the planes, assuming that each column contains both Y
+ * and UV. Some SAND-using hardware stores UV in a separate tiled
+ * image from Y to reduce the column height, which is not supported
+ * with these modifiers.
+ */
+
+#define DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(v) \
+ fourcc_mod_broadcom_code(2, v)
+#define DRM_FORMAT_MOD_BROADCOM_SAND64_COL_HEIGHT(v) \
+ fourcc_mod_broadcom_code(3, v)
+#define DRM_FORMAT_MOD_BROADCOM_SAND128_COL_HEIGHT(v) \
+ fourcc_mod_broadcom_code(4, v)
+#define DRM_FORMAT_MOD_BROADCOM_SAND256_COL_HEIGHT(v) \
+ fourcc_mod_broadcom_code(5, v)
+
+#define DRM_FORMAT_MOD_BROADCOM_SAND32 \
+ DRM_FORMAT_MOD_BROADCOM_SAND32_COL_HEIGHT(0)
+#define DRM_FORMAT_MOD_BROADCOM_SAND64 \
+ DRM_FORMAT_MOD_BROADCOM_SAND64_COL_HEIGHT(0)
+#define DRM_FORMAT_MOD_BROADCOM_SAND128 \
+ DRM_FORMAT_MOD_BROADCOM_SAND128_COL_HEIGHT(0)
+#define DRM_FORMAT_MOD_BROADCOM_SAND256 \
+ DRM_FORMAT_MOD_BROADCOM_SAND256_COL_HEIGHT(0)
+
+/* Broadcom UIF format
+ *
+ * This is the common format for the current Broadcom multimedia
+ * blocks, including V3D 3.x and newer, newer video codecs, and
+ * displays.
+ *
+ * The image consists of utiles (64b blocks), UIF blocks (2x2 utiles),
+ * and macroblocks (4x4 UIF blocks). Those 4x4 UIF block groups are
+ * stored in columns, with padding between the columns to ensure that
+ * moving from one column to the next doesn't hit the same SDRAM page
+ * bank.
+ *
+ * To calculate the padding, it is assumed that each hardware block
+ * and the software driving it knows the platform's SDRAM page size,
+ * number of banks, and XOR address, and that it's identical between
+ * all blocks using the format. This tiling modifier will use XOR as
+ * necessary to reduce the padding. If a hardware block can't do XOR,
+ * the assumption is that a no-XOR tiling modifier will be created.
+ */
+#define DRM_FORMAT_MOD_BROADCOM_UIF fourcc_mod_code(BROADCOM, 6)
+
+/*
+ * Arm Framebuffer Compression (AFBC) modifiers
+ *
+ * AFBC is a proprietary lossless image compression protocol and format.
+ * It provides fine-grained random access and minimizes the amount of data
+ * transferred between IP blocks.
+ *
+ * AFBC has several features which may be supported and/or used, which are
+ * represented using bits in the modifier. Not all combinations are valid,
+ * and different devices or use-cases may support different combinations.
+ *
+ * Further information on the use of AFBC modifiers can be found in
+ * Documentation/gpu/afbc.rst
+ */
+
+/*
+ * The top 4 bits (out of the 56 bits alloted for specifying vendor specific
+ * modifiers) denote the category for modifiers. Currently we have three
+ * categories of modifiers ie AFBC, MISC and AFRC. We can have a maximum of
+ * sixteen different categories.
+ */
+#define DRM_FORMAT_MOD_ARM_CODE(__type, __val) \
+ fourcc_mod_code(ARM, ((__u64)(__type) << 52) | ((__val) & 0x000fffffffffffffULL))
+
+#define DRM_FORMAT_MOD_ARM_TYPE_AFBC 0x00
+#define DRM_FORMAT_MOD_ARM_TYPE_MISC 0x01
+
+#define DRM_FORMAT_MOD_ARM_AFBC(__afbc_mode) \
+ DRM_FORMAT_MOD_ARM_CODE(DRM_FORMAT_MOD_ARM_TYPE_AFBC, __afbc_mode)
+
+/*
+ * AFBC superblock size
+ *
+ * Indicates the superblock size(s) used for the AFBC buffer. The buffer
+ * size (in pixels) must be aligned to a multiple of the superblock size.
+ * Four lowest significant bits(LSBs) are reserved for block size.
+ *
+ * Where one superblock size is specified, it applies to all planes of the
+ * buffer (e.g. 16x16, 32x8). When multiple superblock sizes are specified,
+ * the first applies to the Luma plane and the second applies to the Chroma
+ * plane(s). e.g. (32x8_64x4 means 32x8 Luma, with 64x4 Chroma).
+ * Multiple superblock sizes are only valid for multi-plane YCbCr formats.
+ */
+#define AFBC_FORMAT_MOD_BLOCK_SIZE_MASK 0xf
+#define AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 (1ULL)
+#define AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 (2ULL)
+#define AFBC_FORMAT_MOD_BLOCK_SIZE_64x4 (3ULL)
+#define AFBC_FORMAT_MOD_BLOCK_SIZE_32x8_64x4 (4ULL)
+
+/*
+ * AFBC lossless colorspace transform
+ *
+ * Indicates that the buffer makes use of the AFBC lossless colorspace
+ * transform.
+ */
+#define AFBC_FORMAT_MOD_YTR (1ULL << 4)
+
+/*
+ * AFBC block-split
+ *
+ * Indicates that the payload of each superblock is split. The second
+ * half of the payload is positioned at a predefined offset from the start
+ * of the superblock payload.
+ */
+#define AFBC_FORMAT_MOD_SPLIT (1ULL << 5)
+
+/*
+ * AFBC sparse layout
+ *
+ * This flag indicates that the payload of each superblock must be stored at a
+ * predefined position relative to the other superblocks in the same AFBC
+ * buffer. This order is the same order used by the header buffer. In this mode
+ * each superblock is given the same amount of space as an uncompressed
+ * superblock of the particular format would require, rounding up to the next
+ * multiple of 128 bytes in size.
+ */
+#define AFBC_FORMAT_MOD_SPARSE (1ULL << 6)
+
+/*
+ * AFBC copy-block restrict
+ *
+ * Buffers with this flag must obey the copy-block restriction. The restriction
+ * is such that there are no copy-blocks referring across the border of 8x8
+ * blocks. For the subsampled data the 8x8 limitation is also subsampled.
+ */
+#define AFBC_FORMAT_MOD_CBR (1ULL << 7)
+
+/*
+ * AFBC tiled layout
+ *
+ * The tiled layout groups superblocks in 8x8 or 4x4 tiles, where all
+ * superblocks inside a tile are stored together in memory. 8x8 tiles are used
+ * for pixel formats up to and including 32 bpp while 4x4 tiles are used for
+ * larger bpp formats. The order between the tiles is scan line.
+ * When the tiled layout is used, the buffer size (in pixels) must be aligned
+ * to the tile size.
+ */
+#define AFBC_FORMAT_MOD_TILED (1ULL << 8)
+
+/*
+ * AFBC solid color blocks
+ *
+ * Indicates that the buffer makes use of solid-color blocks, whereby bandwidth
+ * can be reduced if a whole superblock is a single color.
+ */
+#define AFBC_FORMAT_MOD_SC (1ULL << 9)
+
+/*
+ * AFBC double-buffer
+ *
+ * Indicates that the buffer is allocated in a layout safe for front-buffer
+ * rendering.
+ */
+#define AFBC_FORMAT_MOD_DB (1ULL << 10)
+
+/*
+ * AFBC buffer content hints
+ *
+ * Indicates that the buffer includes per-superblock content hints.
+ */
+#define AFBC_FORMAT_MOD_BCH (1ULL << 11)
+
+/* AFBC uncompressed storage mode
+ *
+ * Indicates that the buffer is using AFBC uncompressed storage mode.
+ * In this mode all superblock payloads in the buffer use the uncompressed
+ * storage mode, which is usually only used for data which cannot be compressed.
+ * The buffer layout is the same as for AFBC buffers without USM set, this only
+ * affects the storage mode of the individual superblocks. Note that even a
+ * buffer without USM set may use uncompressed storage mode for some or all
+ * superblocks, USM just guarantees it for all.
+ */
+#define AFBC_FORMAT_MOD_USM (1ULL << 12)
+
+/*
+ * Arm Fixed-Rate Compression (AFRC) modifiers
+ *
+ * AFRC is a proprietary fixed rate image compression protocol and format,
+ * designed to provide guaranteed bandwidth and memory footprint
+ * reductions in graphics and media use-cases.
+ *
+ * AFRC buffers consist of one or more planes, with the same components
+ * and meaning as an uncompressed buffer using the same pixel format.
+ *
+ * Within each plane, the pixel/luma/chroma values are grouped into
+ * "coding unit" blocks which are individually compressed to a
+ * fixed size (in bytes). All coding units within a given plane of a buffer
+ * store the same number of values, and have the same compressed size.
+ *
+ * The coding unit size is configurable, allowing different rates of compression.
+ *
+ * The start of each AFRC buffer plane must be aligned to an alignment granule which
+ * depends on the coding unit size.
+ *
+ * Coding Unit Size Plane Alignment
+ * ---------------- ---------------
+ * 16 bytes 1024 bytes
+ * 24 bytes 512 bytes
+ * 32 bytes 2048 bytes
+ *
+ * Coding units are grouped into paging tiles. AFRC buffer dimensions must be aligned
+ * to a multiple of the paging tile dimensions.
+ * The dimensions of each paging tile depend on whether the buffer is optimised for
+ * scanline (SCAN layout) or rotated (ROT layout) access.
+ *
+ * Layout Paging Tile Width Paging Tile Height
+ * ------ ----------------- ------------------
+ * SCAN 16 coding units 4 coding units
+ * ROT 8 coding units 8 coding units
+ *
+ * The dimensions of each coding unit depend on the number of components
+ * in the compressed plane and whether the buffer is optimised for
+ * scanline (SCAN layout) or rotated (ROT layout) access.
+ *
+ * Number of Components in Plane Layout Coding Unit Width Coding Unit Height
+ * ----------------------------- --------- ----------------- ------------------
+ * 1 SCAN 16 samples 4 samples
+ * Example: 16x4 luma samples in a 'Y' plane
+ * 16x4 chroma 'V' values, in the 'V' plane of a fully-planar YUV buffer
+ * ----------------------------- --------- ----------------- ------------------
+ * 1 ROT 8 samples 8 samples
+ * Example: 8x8 luma samples in a 'Y' plane
+ * 8x8 chroma 'V' values, in the 'V' plane of a fully-planar YUV buffer
+ * ----------------------------- --------- ----------------- ------------------
+ * 2 DONT CARE 8 samples 4 samples
+ * Example: 8x4 chroma pairs in the 'UV' plane of a semi-planar YUV buffer
+ * ----------------------------- --------- ----------------- ------------------
+ * 3 DONT CARE 4 samples 4 samples
+ * Example: 4x4 pixels in an RGB buffer without alpha
+ * ----------------------------- --------- ----------------- ------------------
+ * 4 DONT CARE 4 samples 4 samples
+ * Example: 4x4 pixels in an RGB buffer with alpha
+ */
+
+#define DRM_FORMAT_MOD_ARM_TYPE_AFRC 0x02
+
+#define DRM_FORMAT_MOD_ARM_AFRC(__afrc_mode) \
+ DRM_FORMAT_MOD_ARM_CODE(DRM_FORMAT_MOD_ARM_TYPE_AFRC, __afrc_mode)
+
+/*
+ * AFRC coding unit size modifier.
+ *
+ * Indicates the number of bytes used to store each compressed coding unit for
+ * one or more planes in an AFRC encoded buffer. The coding unit size for chrominance
+ * is the same for both Cb and Cr, which may be stored in separate planes.
+ *
+ * AFRC_FORMAT_MOD_CU_SIZE_P0 indicates the number of bytes used to store
+ * each compressed coding unit in the first plane of the buffer. For RGBA buffers
+ * this is the only plane, while for semi-planar and fully-planar YUV buffers,
+ * this corresponds to the luma plane.
+ *
+ * AFRC_FORMAT_MOD_CU_SIZE_P12 indicates the number of bytes used to store
+ * each compressed coding unit in the second and third planes in the buffer.
+ * For semi-planar and fully-planar YUV buffers, this corresponds to the chroma plane(s).
+ *
+ * For single-plane buffers, AFRC_FORMAT_MOD_CU_SIZE_P0 must be specified
+ * and AFRC_FORMAT_MOD_CU_SIZE_P12 must be zero.
+ * For semi-planar and fully-planar buffers, both AFRC_FORMAT_MOD_CU_SIZE_P0 and
+ * AFRC_FORMAT_MOD_CU_SIZE_P12 must be specified.
+ */
+#define AFRC_FORMAT_MOD_CU_SIZE_MASK 0xf
+#define AFRC_FORMAT_MOD_CU_SIZE_16 (1ULL)
+#define AFRC_FORMAT_MOD_CU_SIZE_24 (2ULL)
+#define AFRC_FORMAT_MOD_CU_SIZE_32 (3ULL)
+
+#define AFRC_FORMAT_MOD_CU_SIZE_P0(__afrc_cu_size) (__afrc_cu_size)
+#define AFRC_FORMAT_MOD_CU_SIZE_P12(__afrc_cu_size) ((__afrc_cu_size) << 4)
+
+/*
+ * AFRC scanline memory layout.
+ *
+ * Indicates if the buffer uses the scanline-optimised layout
+ * for an AFRC encoded buffer, otherwise, it uses the rotation-optimised layout.
+ * The memory layout is the same for all planes.
+ */
+#define AFRC_FORMAT_MOD_LAYOUT_SCAN (1ULL << 8)
+
+/*
+ * Arm 16x16 Block U-Interleaved modifier
+ *
+ * This is used by Arm Mali Utgard and Midgard GPUs. It divides the image
+ * into 16x16 pixel blocks. Blocks are stored linearly in order, but pixels
+ * in the block are reordered.
+ */
+#define DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED \
+ DRM_FORMAT_MOD_ARM_CODE(DRM_FORMAT_MOD_ARM_TYPE_MISC, 1ULL)
+
+/*
+ * Allwinner tiled modifier
+ *
+ * This tiling mode is implemented by the VPU found on all Allwinner platforms,
+ * codenamed sunxi. It is associated with a YUV format that uses either 2 or 3
+ * planes.
+ *
+ * With this tiling, the luminance samples are disposed in tiles representing
+ * 32x32 pixels and the chrominance samples in tiles representing 32x64 pixels.
+ * The pixel order in each tile is linear and the tiles are disposed linearly,
+ * both in row-major order.
+ */
+#define DRM_FORMAT_MOD_ALLWINNER_TILED fourcc_mod_code(ALLWINNER, 1)
+
+/*
+ * Amlogic Video Framebuffer Compression modifiers
+ *
+ * Amlogic uses a proprietary lossless image compression protocol and format
+ * for their hardware video codec accelerators, either video decoders or
+ * video input encoders.
+ *
+ * It considerably reduces memory bandwidth while writing and reading
+ * frames in memory.
+ *
+ * The underlying storage is considered to be 3 components, 8bit or 10-bit
+ * per component YCbCr 420, single plane :
+ * - DRM_FORMAT_YUV420_8BIT
+ * - DRM_FORMAT_YUV420_10BIT
+ *
+ * The first 8 bits of the mode defines the layout, then the following 8 bits
+ * defines the options changing the layout.
+ *
+ * Not all combinations are valid, and different SoCs may support different
+ * combinations of layout and options.
+ */
+#define __fourcc_mod_amlogic_layout_mask 0xff
+#define __fourcc_mod_amlogic_options_shift 8
+#define __fourcc_mod_amlogic_options_mask 0xff
+
+#define DRM_FORMAT_MOD_AMLOGIC_FBC(__layout, __options) \
+ fourcc_mod_code(AMLOGIC, \
+ ((__layout) & __fourcc_mod_amlogic_layout_mask) | \
+ (((__options) & __fourcc_mod_amlogic_options_mask) \
+ << __fourcc_mod_amlogic_options_shift))
+
+/* Amlogic FBC Layouts */
+
+/*
+ * Amlogic FBC Basic Layout
+ *
+ * The basic layout is composed of:
+ * - a body content organized in 64x32 superblocks with 4096 bytes per
+ * superblock in default mode.
+ * - a 32 bytes per 128x64 header block
+ *
+ * This layout is transferrable between Amlogic SoCs supporting this modifier.
+ */
+#define AMLOGIC_FBC_LAYOUT_BASIC (1ULL)
+
+/*
+ * Amlogic FBC Scatter Memory layout
+ *
+ * Indicates the header contains IOMMU references to the compressed
+ * frames content to optimize memory access and layout.
+ *
+ * In this mode, only the header memory address is needed, thus the
+ * content memory organization is tied to the current producer
+ * execution and cannot be saved/dumped neither transferrable between
+ * Amlogic SoCs supporting this modifier.
+ *
+ * Due to the nature of the layout, these buffers are not expected to
+ * be accessible by the user-space clients, but only accessible by the
+ * hardware producers and consumers.
+ *
+ * The user-space clients should expect a failure while trying to mmap
+ * the DMA-BUF handle returned by the producer.
+ */
+#define AMLOGIC_FBC_LAYOUT_SCATTER (2ULL)
+
+/* Amlogic FBC Layout Options Bit Mask */
+
+/*
+ * Amlogic FBC Memory Saving mode
+ *
+ * Indicates the storage is packed when pixel size is multiple of word
+ * boudaries, i.e. 8bit should be stored in this mode to save allocation
+ * memory.
+ *
+ * This mode reduces body layout to 3072 bytes per 64x32 superblock with
+ * the basic layout and 3200 bytes per 64x32 superblock combined with
+ * the scatter layout.
+ */
+#define AMLOGIC_FBC_OPTION_MEM_SAVING (1ULL << 0)
+
+/*
+ * AMD modifiers
+ *
+ * Memory layout:
+ *
+ * without DCC:
+ * - main surface
+ *
+ * with DCC & without DCC_RETILE:
+ * - main surface in plane 0
+ * - DCC surface in plane 1 (RB-aligned, pipe-aligned if DCC_PIPE_ALIGN is set)
+ *
+ * with DCC & DCC_RETILE:
+ * - main surface in plane 0
+ * - displayable DCC surface in plane 1 (not RB-aligned & not pipe-aligned)
+ * - pipe-aligned DCC surface in plane 2 (RB-aligned & pipe-aligned)
+ *
+ * For multi-plane formats the above surfaces get merged into one plane for
+ * each format plane, based on the required alignment only.
+ *
+ * Bits Parameter Notes
+ * ----- ------------------------ ---------------------------------------------
+ *
+ * 7:0 TILE_VERSION Values are AMD_FMT_MOD_TILE_VER_*
+ * 12:8 TILE Values are AMD_FMT_MOD_TILE_<version>_*
+ * 13 DCC
+ * 14 DCC_RETILE
+ * 15 DCC_PIPE_ALIGN
+ * 16 DCC_INDEPENDENT_64B
+ * 17 DCC_INDEPENDENT_128B
+ * 19:18 DCC_MAX_COMPRESSED_BLOCK Values are AMD_FMT_MOD_DCC_BLOCK_*
+ * 20 DCC_CONSTANT_ENCODE
+ * 23:21 PIPE_XOR_BITS Only for some chips
+ * 26:24 BANK_XOR_BITS Only for some chips
+ * 29:27 PACKERS Only for some chips
+ * 32:30 RB Only for some chips
+ * 35:33 PIPE Only for some chips
+ * 55:36 - Reserved for future use, must be zero
+ */
+#define AMD_FMT_MOD fourcc_mod_code(AMD, 0)
+
+#define IS_AMD_FMT_MOD(val) (((val) >> 56) == DRM_FORMAT_MOD_VENDOR_AMD)
+
+/* Reserve 0 for GFX8 and older */
+#define AMD_FMT_MOD_TILE_VER_GFX9 1
+#define AMD_FMT_MOD_TILE_VER_GFX10 2
+#define AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS 3
+
+/*
+ * 64K_S is the same for GFX9/GFX10/GFX10_RBPLUS and hence has GFX9 as canonical
+ * version.
+ */
+#define AMD_FMT_MOD_TILE_GFX9_64K_S 9
+
+/*
+ * 64K_D for non-32 bpp is the same for GFX9/GFX10/GFX10_RBPLUS and hence has
+ * GFX9 as canonical version.
+ */
+#define AMD_FMT_MOD_TILE_GFX9_64K_D 10
+#define AMD_FMT_MOD_TILE_GFX9_64K_S_X 25
+#define AMD_FMT_MOD_TILE_GFX9_64K_D_X 26
+#define AMD_FMT_MOD_TILE_GFX9_64K_R_X 27
+
+#define AMD_FMT_MOD_DCC_BLOCK_64B 0
+#define AMD_FMT_MOD_DCC_BLOCK_128B 1
+#define AMD_FMT_MOD_DCC_BLOCK_256B 2
+
+#define AMD_FMT_MOD_TILE_VERSION_SHIFT 0
+#define AMD_FMT_MOD_TILE_VERSION_MASK 0xFF
+#define AMD_FMT_MOD_TILE_SHIFT 8
+#define AMD_FMT_MOD_TILE_MASK 0x1F
+
+/* Whether DCC compression is enabled. */
+#define AMD_FMT_MOD_DCC_SHIFT 13
+#define AMD_FMT_MOD_DCC_MASK 0x1
+
+/*
+ * Whether to include two DCC surfaces, one which is rb & pipe aligned, and
+ * one which is not-aligned.
+ */
+#define AMD_FMT_MOD_DCC_RETILE_SHIFT 14
+#define AMD_FMT_MOD_DCC_RETILE_MASK 0x1
+
+/* Only set if DCC_RETILE = false */
+#define AMD_FMT_MOD_DCC_PIPE_ALIGN_SHIFT 15
+#define AMD_FMT_MOD_DCC_PIPE_ALIGN_MASK 0x1
+
+#define AMD_FMT_MOD_DCC_INDEPENDENT_64B_SHIFT 16
+#define AMD_FMT_MOD_DCC_INDEPENDENT_64B_MASK 0x1
+#define AMD_FMT_MOD_DCC_INDEPENDENT_128B_SHIFT 17
+#define AMD_FMT_MOD_DCC_INDEPENDENT_128B_MASK 0x1
+#define AMD_FMT_MOD_DCC_MAX_COMPRESSED_BLOCK_SHIFT 18
+#define AMD_FMT_MOD_DCC_MAX_COMPRESSED_BLOCK_MASK 0x3
+
+/*
+ * DCC supports embedding some clear colors directly in the DCC surface.
+ * However, on older GPUs the rendering HW ignores the embedded clear color
+ * and prefers the driver provided color. This necessitates doing a fastclear
+ * eliminate operation before a process transfers control.
+ *
+ * If this bit is set that means the fastclear eliminate is not needed for these
+ * embeddable colors.
+ */
+#define AMD_FMT_MOD_DCC_CONSTANT_ENCODE_SHIFT 20
+#define AMD_FMT_MOD_DCC_CONSTANT_ENCODE_MASK 0x1
+
+/*
+ * The below fields are for accounting for per GPU differences. These are only
+ * relevant for GFX9 and later and if the tile field is *_X/_T.
+ *
+ * PIPE_XOR_BITS = always needed
+ * BANK_XOR_BITS = only for TILE_VER_GFX9
+ * PACKERS = only for TILE_VER_GFX10_RBPLUS
+ * RB = only for TILE_VER_GFX9 & DCC
+ * PIPE = only for TILE_VER_GFX9 & DCC & (DCC_RETILE | DCC_PIPE_ALIGN)
+ */
+#define AMD_FMT_MOD_PIPE_XOR_BITS_SHIFT 21
+#define AMD_FMT_MOD_PIPE_XOR_BITS_MASK 0x7
+#define AMD_FMT_MOD_BANK_XOR_BITS_SHIFT 24
+#define AMD_FMT_MOD_BANK_XOR_BITS_MASK 0x7
+#define AMD_FMT_MOD_PACKERS_SHIFT 27
+#define AMD_FMT_MOD_PACKERS_MASK 0x7
+#define AMD_FMT_MOD_RB_SHIFT 30
+#define AMD_FMT_MOD_RB_MASK 0x7
+#define AMD_FMT_MOD_PIPE_SHIFT 33
+#define AMD_FMT_MOD_PIPE_MASK 0x7
+
+#define AMD_FMT_MOD_SET(field, value) \
+ ((uint64_t)(value) << AMD_FMT_MOD_##field##_SHIFT)
+#define AMD_FMT_MOD_GET(field, value) \
+ (((value) >> AMD_FMT_MOD_##field##_SHIFT) & AMD_FMT_MOD_##field##_MASK)
+#define AMD_FMT_MOD_CLEAR(field) \
+ (~((uint64_t)AMD_FMT_MOD_##field##_MASK << AMD_FMT_MOD_##field##_SHIFT))
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* DRM_FOURCC_H */
diff --git a/third_party/drm/drm/drm_mode.h b/third_party/drm/drm/drm_mode.h
new file mode 100644
index 0000000..e1e3516
--- /dev/null
+++ b/third_party/drm/drm/drm_mode.h
@@ -0,0 +1,1217 @@
+/*
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ * Copyright (c) 2007 Jakob Bornecrantz <wallbraker@gmail.com>
+ * Copyright (c) 2008 Red Hat Inc.
+ * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA
+ * Copyright (c) 2007-2008 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef _DRM_MODE_H
+#define _DRM_MODE_H
+
+#include "drm.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/**
+ * DOC: overview
+ *
+ * DRM exposes many UAPI and structure definition to have a consistent
+ * and standardized interface with user.
+ * Userspace can refer to these structure definitions and UAPI formats
+ * to communicate to driver
+ */
+
+#define DRM_CONNECTOR_NAME_LEN 32
+#define DRM_DISPLAY_MODE_LEN 32
+#define DRM_PROP_NAME_LEN 32
+
+#define DRM_MODE_TYPE_BUILTIN (1<<0) /* deprecated */
+#define DRM_MODE_TYPE_CLOCK_C ((1<<1) | DRM_MODE_TYPE_BUILTIN) /* deprecated */
+#define DRM_MODE_TYPE_CRTC_C ((1<<2) | DRM_MODE_TYPE_BUILTIN) /* deprecated */
+#define DRM_MODE_TYPE_PREFERRED (1<<3)
+#define DRM_MODE_TYPE_DEFAULT (1<<4) /* deprecated */
+#define DRM_MODE_TYPE_USERDEF (1<<5)
+#define DRM_MODE_TYPE_DRIVER (1<<6)
+
+#define DRM_MODE_TYPE_ALL (DRM_MODE_TYPE_PREFERRED | \
+ DRM_MODE_TYPE_USERDEF | \
+ DRM_MODE_TYPE_DRIVER)
+
+/* Video mode flags */
+/* bit compatible with the xrandr RR_ definitions (bits 0-13)
+ *
+ * ABI warning: Existing userspace really expects
+ * the mode flags to match the xrandr definitions. Any
+ * changes that don't match the xrandr definitions will
+ * likely need a new client cap or some other mechanism
+ * to avoid breaking existing userspace. This includes
+ * allocating new flags in the previously unused bits!
+ */
+#define DRM_MODE_FLAG_PHSYNC (1<<0)
+#define DRM_MODE_FLAG_NHSYNC (1<<1)
+#define DRM_MODE_FLAG_PVSYNC (1<<2)
+#define DRM_MODE_FLAG_NVSYNC (1<<3)
+#define DRM_MODE_FLAG_INTERLACE (1<<4)
+#define DRM_MODE_FLAG_DBLSCAN (1<<5)
+#define DRM_MODE_FLAG_CSYNC (1<<6)
+#define DRM_MODE_FLAG_PCSYNC (1<<7)
+#define DRM_MODE_FLAG_NCSYNC (1<<8)
+#define DRM_MODE_FLAG_HSKEW (1<<9) /* hskew provided */
+#define DRM_MODE_FLAG_BCAST (1<<10) /* deprecated */
+#define DRM_MODE_FLAG_PIXMUX (1<<11) /* deprecated */
+#define DRM_MODE_FLAG_DBLCLK (1<<12)
+#define DRM_MODE_FLAG_CLKDIV2 (1<<13)
+ /*
+ * When adding a new stereo mode don't forget to adjust DRM_MODE_FLAGS_3D_MAX
+ * (define not exposed to user space).
+ */
+#define DRM_MODE_FLAG_3D_MASK (0x1f<<14)
+#define DRM_MODE_FLAG_3D_NONE (0<<14)
+#define DRM_MODE_FLAG_3D_FRAME_PACKING (1<<14)
+#define DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE (2<<14)
+#define DRM_MODE_FLAG_3D_LINE_ALTERNATIVE (3<<14)
+#define DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL (4<<14)
+#define DRM_MODE_FLAG_3D_L_DEPTH (5<<14)
+#define DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH (6<<14)
+#define DRM_MODE_FLAG_3D_TOP_AND_BOTTOM (7<<14)
+#define DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF (8<<14)
+
+/* Picture aspect ratio options */
+#define DRM_MODE_PICTURE_ASPECT_NONE 0
+#define DRM_MODE_PICTURE_ASPECT_4_3 1
+#define DRM_MODE_PICTURE_ASPECT_16_9 2
+#define DRM_MODE_PICTURE_ASPECT_64_27 3
+#define DRM_MODE_PICTURE_ASPECT_256_135 4
+
+/* Content type options */
+#define DRM_MODE_CONTENT_TYPE_NO_DATA 0
+#define DRM_MODE_CONTENT_TYPE_GRAPHICS 1
+#define DRM_MODE_CONTENT_TYPE_PHOTO 2
+#define DRM_MODE_CONTENT_TYPE_CINEMA 3
+#define DRM_MODE_CONTENT_TYPE_GAME 4
+
+/* Aspect ratio flag bitmask (4 bits 22:19) */
+#define DRM_MODE_FLAG_PIC_AR_MASK (0x0F<<19)
+#define DRM_MODE_FLAG_PIC_AR_NONE \
+ (DRM_MODE_PICTURE_ASPECT_NONE<<19)
+#define DRM_MODE_FLAG_PIC_AR_4_3 \
+ (DRM_MODE_PICTURE_ASPECT_4_3<<19)
+#define DRM_MODE_FLAG_PIC_AR_16_9 \
+ (DRM_MODE_PICTURE_ASPECT_16_9<<19)
+#define DRM_MODE_FLAG_PIC_AR_64_27 \
+ (DRM_MODE_PICTURE_ASPECT_64_27<<19)
+#define DRM_MODE_FLAG_PIC_AR_256_135 \
+ (DRM_MODE_PICTURE_ASPECT_256_135<<19)
+
+#define DRM_MODE_FLAG_ALL (DRM_MODE_FLAG_PHSYNC | \
+ DRM_MODE_FLAG_NHSYNC | \
+ DRM_MODE_FLAG_PVSYNC | \
+ DRM_MODE_FLAG_NVSYNC | \
+ DRM_MODE_FLAG_INTERLACE | \
+ DRM_MODE_FLAG_DBLSCAN | \
+ DRM_MODE_FLAG_CSYNC | \
+ DRM_MODE_FLAG_PCSYNC | \
+ DRM_MODE_FLAG_NCSYNC | \
+ DRM_MODE_FLAG_HSKEW | \
+ DRM_MODE_FLAG_DBLCLK | \
+ DRM_MODE_FLAG_CLKDIV2 | \
+ DRM_MODE_FLAG_3D_MASK)
+
+/* DPMS flags */
+/* bit compatible with the xorg definitions. */
+#define DRM_MODE_DPMS_ON 0
+#define DRM_MODE_DPMS_STANDBY 1
+#define DRM_MODE_DPMS_SUSPEND 2
+#define DRM_MODE_DPMS_OFF 3
+
+/* Scaling mode options */
+#define DRM_MODE_SCALE_NONE 0 /* Unmodified timing (display or
+ software can still scale) */
+#define DRM_MODE_SCALE_FULLSCREEN 1 /* Full screen, ignore aspect */
+#define DRM_MODE_SCALE_CENTER 2 /* Centered, no scaling */
+#define DRM_MODE_SCALE_ASPECT 3 /* Full screen, preserve aspect */
+
+/* Dithering mode options */
+#define DRM_MODE_DITHERING_OFF 0
+#define DRM_MODE_DITHERING_ON 1
+#define DRM_MODE_DITHERING_AUTO 2
+
+/* Dirty info options */
+#define DRM_MODE_DIRTY_OFF 0
+#define DRM_MODE_DIRTY_ON 1
+#define DRM_MODE_DIRTY_ANNOTATE 2
+
+/* Link Status options */
+#define DRM_MODE_LINK_STATUS_GOOD 0
+#define DRM_MODE_LINK_STATUS_BAD 1
+
+/*
+ * DRM_MODE_ROTATE_<degrees>
+ *
+ * Signals that a drm plane is been rotated <degrees> degrees in counter
+ * clockwise direction.
+ *
+ * This define is provided as a convenience, looking up the property id
+ * using the name->prop id lookup is the preferred method.
+ */
+#define DRM_MODE_ROTATE_0 (1<<0)
+#define DRM_MODE_ROTATE_90 (1<<1)
+#define DRM_MODE_ROTATE_180 (1<<2)
+#define DRM_MODE_ROTATE_270 (1<<3)
+
+/*
+ * DRM_MODE_ROTATE_MASK
+ *
+ * Bitmask used to look for drm plane rotations.
+ */
+#define DRM_MODE_ROTATE_MASK (\
+ DRM_MODE_ROTATE_0 | \
+ DRM_MODE_ROTATE_90 | \
+ DRM_MODE_ROTATE_180 | \
+ DRM_MODE_ROTATE_270)
+
+/*
+ * DRM_MODE_REFLECT_<axis>
+ *
+ * Signals that the contents of a drm plane is reflected along the <axis> axis,
+ * in the same way as mirroring.
+ * See kerneldoc chapter "Plane Composition Properties" for more details.
+ *
+ * This define is provided as a convenience, looking up the property id
+ * using the name->prop id lookup is the preferred method.
+ */
+#define DRM_MODE_REFLECT_X (1<<4)
+#define DRM_MODE_REFLECT_Y (1<<5)
+
+/*
+ * DRM_MODE_REFLECT_MASK
+ *
+ * Bitmask used to look for drm plane reflections.
+ */
+#define DRM_MODE_REFLECT_MASK (\
+ DRM_MODE_REFLECT_X | \
+ DRM_MODE_REFLECT_Y)
+
+/* Content Protection Flags */
+#define DRM_MODE_CONTENT_PROTECTION_UNDESIRED 0
+#define DRM_MODE_CONTENT_PROTECTION_DESIRED 1
+#define DRM_MODE_CONTENT_PROTECTION_ENABLED 2
+
+/**
+ * struct drm_mode_modeinfo - Display mode information.
+ * @clock: pixel clock in kHz
+ * @hdisplay: horizontal display size
+ * @hsync_start: horizontal sync start
+ * @hsync_end: horizontal sync end
+ * @htotal: horizontal total size
+ * @hskew: horizontal skew
+ * @vdisplay: vertical display size
+ * @vsync_start: vertical sync start
+ * @vsync_end: vertical sync end
+ * @vtotal: vertical total size
+ * @vscan: vertical scan
+ * @vrefresh: approximate vertical refresh rate in Hz
+ * @flags: bitmask of misc. flags, see DRM_MODE_FLAG_* defines
+ * @type: bitmask of type flags, see DRM_MODE_TYPE_* defines
+ * @name: string describing the mode resolution
+ *
+ * This is the user-space API display mode information structure. For the
+ * kernel version see struct drm_display_mode.
+ */
+struct drm_mode_modeinfo {
+ __u32 clock;
+ __u16 hdisplay;
+ __u16 hsync_start;
+ __u16 hsync_end;
+ __u16 htotal;
+ __u16 hskew;
+ __u16 vdisplay;
+ __u16 vsync_start;
+ __u16 vsync_end;
+ __u16 vtotal;
+ __u16 vscan;
+
+ __u32 vrefresh;
+
+ __u32 flags;
+ __u32 type;
+ char name[DRM_DISPLAY_MODE_LEN];
+};
+
+struct drm_mode_card_res {
+ __u64 fb_id_ptr;
+ __u64 crtc_id_ptr;
+ __u64 connector_id_ptr;
+ __u64 encoder_id_ptr;
+ __u32 count_fbs;
+ __u32 count_crtcs;
+ __u32 count_connectors;
+ __u32 count_encoders;
+ __u32 min_width;
+ __u32 max_width;
+ __u32 min_height;
+ __u32 max_height;
+};
+
+struct drm_mode_crtc {
+ __u64 set_connectors_ptr;
+ __u32 count_connectors;
+
+ __u32 crtc_id; /**< Id */
+ __u32 fb_id; /**< Id of framebuffer */
+
+ __u32 x; /**< x Position on the framebuffer */
+ __u32 y; /**< y Position on the framebuffer */
+
+ __u32 gamma_size;
+ __u32 mode_valid;
+ struct drm_mode_modeinfo mode;
+};
+
+#define DRM_MODE_PRESENT_TOP_FIELD (1<<0)
+#define DRM_MODE_PRESENT_BOTTOM_FIELD (1<<1)
+
+/* Planes blend with or override other bits on the CRTC */
+struct drm_mode_set_plane {
+ __u32 plane_id;
+ __u32 crtc_id;
+ __u32 fb_id; /* fb object contains surface format type */
+ __u32 flags; /* see above flags */
+
+ /* Signed dest location allows it to be partially off screen */
+ __s32 crtc_x;
+ __s32 crtc_y;
+ __u32 crtc_w;
+ __u32 crtc_h;
+
+ /* Source values are 16.16 fixed point */
+ __u32 src_x;
+ __u32 src_y;
+ __u32 src_h;
+ __u32 src_w;
+};
+
+/**
+ * struct drm_mode_get_plane - Get plane metadata.
+ *
+ * Userspace can perform a GETPLANE ioctl to retrieve information about a
+ * plane.
+ *
+ * To retrieve the number of formats supported, set @count_format_types to zero
+ * and call the ioctl. @count_format_types will be updated with the value.
+ *
+ * To retrieve these formats, allocate an array with the memory needed to store
+ * @count_format_types formats. Point @format_type_ptr to this array and call
+ * the ioctl again (with @count_format_types still set to the value returned in
+ * the first ioctl call).
+ */
+struct drm_mode_get_plane {
+ /**
+ * @plane_id: Object ID of the plane whose information should be
+ * retrieved. Set by caller.
+ */
+ __u32 plane_id;
+
+ /** @crtc_id: Object ID of the current CRTC. */
+ __u32 crtc_id;
+ /** @fb_id: Object ID of the current fb. */
+ __u32 fb_id;
+
+ /**
+ * @possible_crtcs: Bitmask of CRTC's compatible with the plane. CRTC's
+ * are created and they receive an index, which corresponds to their
+ * position in the bitmask. Bit N corresponds to
+ * :ref:`CRTC index<crtc_index>` N.
+ */
+ __u32 possible_crtcs;
+ /** @gamma_size: Never used. */
+ __u32 gamma_size;
+
+ /** @count_format_types: Number of formats. */
+ __u32 count_format_types;
+ /**
+ * @format_type_ptr: Pointer to ``__u32`` array of formats that are
+ * supported by the plane. These formats do not require modifiers.
+ */
+ __u64 format_type_ptr;
+};
+
+struct drm_mode_get_plane_res {
+ __u64 plane_id_ptr;
+ __u32 count_planes;
+};
+
+#define DRM_MODE_ENCODER_NONE 0
+#define DRM_MODE_ENCODER_DAC 1
+#define DRM_MODE_ENCODER_TMDS 2
+#define DRM_MODE_ENCODER_LVDS 3
+#define DRM_MODE_ENCODER_TVDAC 4
+#define DRM_MODE_ENCODER_VIRTUAL 5
+#define DRM_MODE_ENCODER_DSI 6
+#define DRM_MODE_ENCODER_DPMST 7
+#define DRM_MODE_ENCODER_DPI 8
+
+struct drm_mode_get_encoder {
+ __u32 encoder_id;
+ __u32 encoder_type;
+
+ __u32 crtc_id; /**< Id of crtc */
+
+ __u32 possible_crtcs;
+ __u32 possible_clones;
+};
+
+/* This is for connectors with multiple signal types. */
+/* Try to match DRM_MODE_CONNECTOR_X as closely as possible. */
+enum drm_mode_subconnector {
+ DRM_MODE_SUBCONNECTOR_Automatic = 0, /* DVI-I, TV */
+ DRM_MODE_SUBCONNECTOR_Unknown = 0, /* DVI-I, TV, DP */
+ DRM_MODE_SUBCONNECTOR_VGA = 1, /* DP */
+ DRM_MODE_SUBCONNECTOR_DVID = 3, /* DVI-I DP */
+ DRM_MODE_SUBCONNECTOR_DVIA = 4, /* DVI-I */
+ DRM_MODE_SUBCONNECTOR_Composite = 5, /* TV */
+ DRM_MODE_SUBCONNECTOR_SVIDEO = 6, /* TV */
+ DRM_MODE_SUBCONNECTOR_Component = 8, /* TV */
+ DRM_MODE_SUBCONNECTOR_SCART = 9, /* TV */
+ DRM_MODE_SUBCONNECTOR_DisplayPort = 10, /* DP */
+ DRM_MODE_SUBCONNECTOR_HDMIA = 11, /* DP */
+ DRM_MODE_SUBCONNECTOR_Native = 15, /* DP */
+ DRM_MODE_SUBCONNECTOR_Wireless = 18, /* DP */
+};
+
+#define DRM_MODE_CONNECTOR_Unknown 0
+#define DRM_MODE_CONNECTOR_VGA 1
+#define DRM_MODE_CONNECTOR_DVII 2
+#define DRM_MODE_CONNECTOR_DVID 3
+#define DRM_MODE_CONNECTOR_DVIA 4
+#define DRM_MODE_CONNECTOR_Composite 5
+#define DRM_MODE_CONNECTOR_SVIDEO 6
+#define DRM_MODE_CONNECTOR_LVDS 7
+#define DRM_MODE_CONNECTOR_Component 8
+#define DRM_MODE_CONNECTOR_9PinDIN 9
+#define DRM_MODE_CONNECTOR_DisplayPort 10
+#define DRM_MODE_CONNECTOR_HDMIA 11
+#define DRM_MODE_CONNECTOR_HDMIB 12
+#define DRM_MODE_CONNECTOR_TV 13
+#define DRM_MODE_CONNECTOR_eDP 14
+#define DRM_MODE_CONNECTOR_VIRTUAL 15
+#define DRM_MODE_CONNECTOR_DSI 16
+#define DRM_MODE_CONNECTOR_DPI 17
+#define DRM_MODE_CONNECTOR_WRITEBACK 18
+#define DRM_MODE_CONNECTOR_SPI 19
+#define DRM_MODE_CONNECTOR_USB 20
+
+/**
+ * struct drm_mode_get_connector - Get connector metadata.
+ *
+ * User-space can perform a GETCONNECTOR ioctl to retrieve information about a
+ * connector. User-space is expected to retrieve encoders, modes and properties
+ * by performing this ioctl at least twice: the first time to retrieve the
+ * number of elements, the second time to retrieve the elements themselves.
+ *
+ * To retrieve the number of elements, set @count_props and @count_encoders to
+ * zero, set @count_modes to 1, and set @modes_ptr to a temporary struct
+ * drm_mode_modeinfo element.
+ *
+ * To retrieve the elements, allocate arrays for @encoders_ptr, @modes_ptr,
+ * @props_ptr and @prop_values_ptr, then set @count_modes, @count_props and
+ * @count_encoders to their capacity.
+ *
+ * Performing the ioctl only twice may be racy: the number of elements may have
+ * changed with a hotplug event in-between the two ioctls. User-space is
+ * expected to retry the last ioctl until the number of elements stabilizes.
+ * The kernel won't fill any array which doesn't have the expected length.
+ *
+ * **Force-probing a connector**
+ *
+ * If the @count_modes field is set to zero and the DRM client is the current
+ * DRM master, the kernel will perform a forced probe on the connector to
+ * refresh the connector status, modes and EDID. A forced-probe can be slow,
+ * might cause flickering and the ioctl will block.
+ *
+ * User-space needs to force-probe connectors to ensure their metadata is
+ * up-to-date at startup and after receiving a hot-plug event. User-space
+ * may perform a forced-probe when the user explicitly requests it. User-space
+ * shouldn't perform a forced-probe in other situations.
+ */
+struct drm_mode_get_connector {
+ /** @encoders_ptr: Pointer to ``__u32`` array of object IDs. */
+ __u64 encoders_ptr;
+ /** @modes_ptr: Pointer to struct drm_mode_modeinfo array. */
+ __u64 modes_ptr;
+ /** @props_ptr: Pointer to ``__u32`` array of property IDs. */
+ __u64 props_ptr;
+ /** @prop_values_ptr: Pointer to ``__u64`` array of property values. */
+ __u64 prop_values_ptr;
+
+ /** @count_modes: Number of modes. */
+ __u32 count_modes;
+ /** @count_props: Number of properties. */
+ __u32 count_props;
+ /** @count_encoders: Number of encoders. */
+ __u32 count_encoders;
+
+ /** @encoder_id: Object ID of the current encoder. */
+ __u32 encoder_id;
+ /** @connector_id: Object ID of the connector. */
+ __u32 connector_id;
+ /**
+ * @connector_type: Type of the connector.
+ *
+ * See DRM_MODE_CONNECTOR_* defines.
+ */
+ __u32 connector_type;
+ /**
+ * @connector_type_id: Type-specific connector number.
+ *
+ * This is not an object ID. This is a per-type connector number. Each
+ * (type, type_id) combination is unique across all connectors of a DRM
+ * device.
+ */
+ __u32 connector_type_id;
+
+ /**
+ * @connection: Status of the connector.
+ *
+ * See enum drm_connector_status.
+ */
+ __u32 connection;
+ /** @mm_width: Width of the connected sink in millimeters. */
+ __u32 mm_width;
+ /** @mm_height: Height of the connected sink in millimeters. */
+ __u32 mm_height;
+ /**
+ * @subpixel: Subpixel order of the connected sink.
+ *
+ * See enum subpixel_order.
+ */
+ __u32 subpixel;
+
+ /** @pad: Padding, must be zero. */
+ __u32 pad;
+};
+
+#define DRM_MODE_PROP_PENDING (1<<0) /* deprecated, do not use */
+#define DRM_MODE_PROP_RANGE (1<<1)
+#define DRM_MODE_PROP_IMMUTABLE (1<<2)
+#define DRM_MODE_PROP_ENUM (1<<3) /* enumerated type with text strings */
+#define DRM_MODE_PROP_BLOB (1<<4)
+#define DRM_MODE_PROP_BITMASK (1<<5) /* bitmask of enumerated types */
+
+/* non-extended types: legacy bitmask, one bit per type: */
+#define DRM_MODE_PROP_LEGACY_TYPE ( \
+ DRM_MODE_PROP_RANGE | \
+ DRM_MODE_PROP_ENUM | \
+ DRM_MODE_PROP_BLOB | \
+ DRM_MODE_PROP_BITMASK)
+
+/* extended-types: rather than continue to consume a bit per type,
+ * grab a chunk of the bits to use as integer type id.
+ */
+#define DRM_MODE_PROP_EXTENDED_TYPE 0x0000ffc0
+#define DRM_MODE_PROP_TYPE(n) ((n) << 6)
+#define DRM_MODE_PROP_OBJECT DRM_MODE_PROP_TYPE(1)
+#define DRM_MODE_PROP_SIGNED_RANGE DRM_MODE_PROP_TYPE(2)
+
+/* the PROP_ATOMIC flag is used to hide properties from userspace that
+ * is not aware of atomic properties. This is mostly to work around
+ * older userspace (DDX drivers) that read/write each prop they find,
+ * witout being aware that this could be triggering a lengthy modeset.
+ */
+#define DRM_MODE_PROP_ATOMIC 0x80000000
+
+/**
+ * struct drm_mode_property_enum - Description for an enum/bitfield entry.
+ * @value: numeric value for this enum entry.
+ * @name: symbolic name for this enum entry.
+ *
+ * See struct drm_property_enum for details.
+ */
+struct drm_mode_property_enum {
+ __u64 value;
+ char name[DRM_PROP_NAME_LEN];
+};
+
+/**
+ * struct drm_mode_get_property - Get property metadata.
+ *
+ * User-space can perform a GETPROPERTY ioctl to retrieve information about a
+ * property. The same property may be attached to multiple objects, see
+ * "Modeset Base Object Abstraction".
+ *
+ * The meaning of the @values_ptr field changes depending on the property type.
+ * See &drm_property.flags for more details.
+ *
+ * The @enum_blob_ptr and @count_enum_blobs fields are only meaningful when the
+ * property has the type &DRM_MODE_PROP_ENUM or &DRM_MODE_PROP_BITMASK. For
+ * backwards compatibility, the kernel will always set @count_enum_blobs to
+ * zero when the property has the type &DRM_MODE_PROP_BLOB. User-space must
+ * ignore these two fields if the property has a different type.
+ *
+ * User-space is expected to retrieve values and enums by performing this ioctl
+ * at least twice: the first time to retrieve the number of elements, the
+ * second time to retrieve the elements themselves.
+ *
+ * To retrieve the number of elements, set @count_values and @count_enum_blobs
+ * to zero, then call the ioctl. @count_values will be updated with the number
+ * of elements. If the property has the type &DRM_MODE_PROP_ENUM or
+ * &DRM_MODE_PROP_BITMASK, @count_enum_blobs will be updated as well.
+ *
+ * To retrieve the elements themselves, allocate an array for @values_ptr and
+ * set @count_values to its capacity. If the property has the type
+ * &DRM_MODE_PROP_ENUM or &DRM_MODE_PROP_BITMASK, allocate an array for
+ * @enum_blob_ptr and set @count_enum_blobs to its capacity. Calling the ioctl
+ * again will fill the arrays.
+ */
+struct drm_mode_get_property {
+ /** @values_ptr: Pointer to a ``__u64`` array. */
+ __u64 values_ptr;
+ /** @enum_blob_ptr: Pointer to a struct drm_mode_property_enum array. */
+ __u64 enum_blob_ptr;
+
+ /**
+ * @prop_id: Object ID of the property which should be retrieved. Set
+ * by the caller.
+ */
+ __u32 prop_id;
+ /**
+ * @flags: ``DRM_MODE_PROP_*`` bitfield. See &drm_property.flags for
+ * a definition of the flags.
+ */
+ __u32 flags;
+ /**
+ * @name: Symbolic property name. User-space should use this field to
+ * recognize properties.
+ */
+ char name[DRM_PROP_NAME_LEN];
+
+ /** @count_values: Number of elements in @values_ptr. */
+ __u32 count_values;
+ /** @count_enum_blobs: Number of elements in @enum_blob_ptr. */
+ __u32 count_enum_blobs;
+};
+
+struct drm_mode_connector_set_property {
+ __u64 value;
+ __u32 prop_id;
+ __u32 connector_id;
+};
+
+#define DRM_MODE_OBJECT_CRTC 0xcccccccc
+#define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
+#define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
+#define DRM_MODE_OBJECT_MODE 0xdededede
+#define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
+#define DRM_MODE_OBJECT_FB 0xfbfbfbfb
+#define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
+#define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
+#define DRM_MODE_OBJECT_ANY 0
+
+struct drm_mode_obj_get_properties {
+ __u64 props_ptr;
+ __u64 prop_values_ptr;
+ __u32 count_props;
+ __u32 obj_id;
+ __u32 obj_type;
+};
+
+struct drm_mode_obj_set_property {
+ __u64 value;
+ __u32 prop_id;
+ __u32 obj_id;
+ __u32 obj_type;
+};
+
+struct drm_mode_get_blob {
+ __u32 blob_id;
+ __u32 length;
+ __u64 data;
+};
+
+struct drm_mode_fb_cmd {
+ __u32 fb_id;
+ __u32 width;
+ __u32 height;
+ __u32 pitch;
+ __u32 bpp;
+ __u32 depth;
+ /* driver specific handle */
+ __u32 handle;
+};
+
+#define DRM_MODE_FB_INTERLACED (1<<0) /* for interlaced framebuffers */
+#define DRM_MODE_FB_MODIFIERS (1<<1) /* enables ->modifer[] */
+
+struct drm_mode_fb_cmd2 {
+ __u32 fb_id;
+ __u32 width;
+ __u32 height;
+ __u32 pixel_format; /* fourcc code from drm_fourcc.h */
+ __u32 flags; /* see above flags */
+
+ /*
+ * In case of planar formats, this ioctl allows up to 4
+ * buffer objects with offsets and pitches per plane.
+ * The pitch and offset order is dictated by the fourcc,
+ * e.g. NV12 (https://fourcc.org/yuv.php#NV12) is described as:
+ *
+ * YUV 4:2:0 image with a plane of 8 bit Y samples
+ * followed by an interleaved U/V plane containing
+ * 8 bit 2x2 subsampled colour difference samples.
+ *
+ * So it would consist of Y as offsets[0] and UV as
+ * offsets[1]. Note that offsets[0] will generally
+ * be 0 (but this is not required).
+ *
+ * To accommodate tiled, compressed, etc formats, a
+ * modifier can be specified. The default value of zero
+ * indicates "native" format as specified by the fourcc.
+ * Vendor specific modifier token. Note that even though
+ * it looks like we have a modifier per-plane, we in fact
+ * do not. The modifier for each plane must be identical.
+ * Thus all combinations of different data layouts for
+ * multi plane formats must be enumerated as separate
+ * modifiers.
+ */
+ __u32 handles[4];
+ __u32 pitches[4]; /* pitch for each plane */
+ __u32 offsets[4]; /* offset of each plane */
+ __u64 modifier[4]; /* ie, tiling, compress */
+};
+
+#define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
+#define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
+#define DRM_MODE_FB_DIRTY_FLAGS 0x03
+
+#define DRM_MODE_FB_DIRTY_MAX_CLIPS 256
+
+/*
+ * Mark a region of a framebuffer as dirty.
+ *
+ * Some hardware does not automatically update display contents
+ * as a hardware or software draw to a framebuffer. This ioctl
+ * allows userspace to tell the kernel and the hardware what
+ * regions of the framebuffer have changed.
+ *
+ * The kernel or hardware is free to update more then just the
+ * region specified by the clip rects. The kernel or hardware
+ * may also delay and/or coalesce several calls to dirty into a
+ * single update.
+ *
+ * Userspace may annotate the updates, the annotates are a
+ * promise made by the caller that the change is either a copy
+ * of pixels or a fill of a single color in the region specified.
+ *
+ * If the DRM_MODE_FB_DIRTY_ANNOTATE_COPY flag is given then
+ * the number of updated regions are half of num_clips given,
+ * where the clip rects are paired in src and dst. The width and
+ * height of each one of the pairs must match.
+ *
+ * If the DRM_MODE_FB_DIRTY_ANNOTATE_FILL flag is given the caller
+ * promises that the region specified of the clip rects is filled
+ * completely with a single color as given in the color argument.
+ */
+
+struct drm_mode_fb_dirty_cmd {
+ __u32 fb_id;
+ __u32 flags;
+ __u32 color;
+ __u32 num_clips;
+ __u64 clips_ptr;
+};
+
+struct drm_mode_mode_cmd {
+ __u32 connector_id;
+ struct drm_mode_modeinfo mode;
+};
+
+#define DRM_MODE_CURSOR_BO 0x01
+#define DRM_MODE_CURSOR_MOVE 0x02
+#define DRM_MODE_CURSOR_FLAGS 0x03
+
+/*
+ * depending on the value in flags different members are used.
+ *
+ * CURSOR_BO uses
+ * crtc_id
+ * width
+ * height
+ * handle - if 0 turns the cursor off
+ *
+ * CURSOR_MOVE uses
+ * crtc_id
+ * x
+ * y
+ */
+struct drm_mode_cursor {
+ __u32 flags;
+ __u32 crtc_id;
+ __s32 x;
+ __s32 y;
+ __u32 width;
+ __u32 height;
+ /* driver specific handle */
+ __u32 handle;
+};
+
+struct drm_mode_cursor2 {
+ __u32 flags;
+ __u32 crtc_id;
+ __s32 x;
+ __s32 y;
+ __u32 width;
+ __u32 height;
+ /* driver specific handle */
+ __u32 handle;
+ __s32 hot_x;
+ __s32 hot_y;
+};
+
+struct drm_mode_crtc_lut {
+ __u32 crtc_id;
+ __u32 gamma_size;
+
+ /* pointers to arrays */
+ __u64 red;
+ __u64 green;
+ __u64 blue;
+};
+
+struct drm_color_ctm {
+ /*
+ * Conversion matrix in S31.32 sign-magnitude
+ * (not two's complement!) format.
+ */
+ __u64 matrix[9];
+};
+
+struct drm_color_lut {
+ /*
+ * Values are mapped linearly to 0.0 - 1.0 range, with 0x0 == 0.0 and
+ * 0xffff == 1.0.
+ */
+ __u16 red;
+ __u16 green;
+ __u16 blue;
+ __u16 reserved;
+};
+
+/**
+ * struct hdr_metadata_infoframe - HDR Metadata Infoframe Data.
+ *
+ * HDR Metadata Infoframe as per CTA 861.G spec. This is expected
+ * to match exactly with the spec.
+ *
+ * Userspace is expected to pass the metadata information as per
+ * the format described in this structure.
+ */
+struct hdr_metadata_infoframe {
+ /**
+ * @eotf: Electro-Optical Transfer Function (EOTF)
+ * used in the stream.
+ */
+ __u8 eotf;
+ /**
+ * @metadata_type: Static_Metadata_Descriptor_ID.
+ */
+ __u8 metadata_type;
+ /**
+ * @display_primaries: Color Primaries of the Data.
+ * These are coded as unsigned 16-bit values in units of
+ * 0.00002, where 0x0000 represents zero and 0xC350
+ * represents 1.0000.
+ * @display_primaries.x: X cordinate of color primary.
+ * @display_primaries.y: Y cordinate of color primary.
+ */
+ struct {
+ __u16 x, y;
+ } display_primaries[3];
+ /**
+ * @white_point: White Point of Colorspace Data.
+ * These are coded as unsigned 16-bit values in units of
+ * 0.00002, where 0x0000 represents zero and 0xC350
+ * represents 1.0000.
+ * @white_point.x: X cordinate of whitepoint of color primary.
+ * @white_point.y: Y cordinate of whitepoint of color primary.
+ */
+ struct {
+ __u16 x, y;
+ } white_point;
+ /**
+ * @max_display_mastering_luminance: Max Mastering Display Luminance.
+ * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
+ * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
+ */
+ __u16 max_display_mastering_luminance;
+ /**
+ * @min_display_mastering_luminance: Min Mastering Display Luminance.
+ * This value is coded as an unsigned 16-bit value in units of
+ * 0.0001 cd/m2, where 0x0001 represents 0.0001 cd/m2 and 0xFFFF
+ * represents 6.5535 cd/m2.
+ */
+ __u16 min_display_mastering_luminance;
+ /**
+ * @max_cll: Max Content Light Level.
+ * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
+ * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
+ */
+ __u16 max_cll;
+ /**
+ * @max_fall: Max Frame Average Light Level.
+ * This value is coded as an unsigned 16-bit value in units of 1 cd/m2,
+ * where 0x0001 represents 1 cd/m2 and 0xFFFF represents 65535 cd/m2.
+ */
+ __u16 max_fall;
+};
+
+/**
+ * struct hdr_output_metadata - HDR output metadata
+ *
+ * Metadata Information to be passed from userspace
+ */
+struct hdr_output_metadata {
+ /**
+ * @metadata_type: Static_Metadata_Descriptor_ID.
+ */
+ __u32 metadata_type;
+ /**
+ * @hdmi_metadata_type1: HDR Metadata Infoframe.
+ */
+ union {
+ struct hdr_metadata_infoframe hdmi_metadata_type1;
+ };
+};
+
+#define DRM_MODE_PAGE_FLIP_EVENT 0x01
+#define DRM_MODE_PAGE_FLIP_ASYNC 0x02
+#define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4
+#define DRM_MODE_PAGE_FLIP_TARGET_RELATIVE 0x8
+#define DRM_MODE_PAGE_FLIP_TARGET (DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE | \
+ DRM_MODE_PAGE_FLIP_TARGET_RELATIVE)
+#define DRM_MODE_PAGE_FLIP_FLAGS (DRM_MODE_PAGE_FLIP_EVENT | \
+ DRM_MODE_PAGE_FLIP_ASYNC | \
+ DRM_MODE_PAGE_FLIP_TARGET)
+
+/*
+ * Request a page flip on the specified crtc.
+ *
+ * This ioctl will ask KMS to schedule a page flip for the specified
+ * crtc. Once any pending rendering targeting the specified fb (as of
+ * ioctl time) has completed, the crtc will be reprogrammed to display
+ * that fb after the next vertical refresh. The ioctl returns
+ * immediately, but subsequent rendering to the current fb will block
+ * in the execbuffer ioctl until the page flip happens. If a page
+ * flip is already pending as the ioctl is called, EBUSY will be
+ * returned.
+ *
+ * Flag DRM_MODE_PAGE_FLIP_EVENT requests that drm sends back a vblank
+ * event (see drm.h: struct drm_event_vblank) when the page flip is
+ * done. The user_data field passed in with this ioctl will be
+ * returned as the user_data field in the vblank event struct.
+ *
+ * Flag DRM_MODE_PAGE_FLIP_ASYNC requests that the flip happen
+ * 'as soon as possible', meaning that it not delay waiting for vblank.
+ * This may cause tearing on the screen.
+ *
+ * The reserved field must be zero.
+ */
+
+struct drm_mode_crtc_page_flip {
+ __u32 crtc_id;
+ __u32 fb_id;
+ __u32 flags;
+ __u32 reserved;
+ __u64 user_data;
+};
+
+/*
+ * Request a page flip on the specified crtc.
+ *
+ * Same as struct drm_mode_crtc_page_flip, but supports new flags and
+ * re-purposes the reserved field:
+ *
+ * The sequence field must be zero unless either of the
+ * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is specified. When
+ * the ABSOLUTE flag is specified, the sequence field denotes the absolute
+ * vblank sequence when the flip should take effect. When the RELATIVE
+ * flag is specified, the sequence field denotes the relative (to the
+ * current one when the ioctl is called) vblank sequence when the flip
+ * should take effect. NOTE: DRM_IOCTL_WAIT_VBLANK must still be used to
+ * make sure the vblank sequence before the target one has passed before
+ * calling this ioctl. The purpose of the
+ * DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags is merely to clarify
+ * the target for when code dealing with a page flip runs during a
+ * vertical blank period.
+ */
+
+struct drm_mode_crtc_page_flip_target {
+ __u32 crtc_id;
+ __u32 fb_id;
+ __u32 flags;
+ __u32 sequence;
+ __u64 user_data;
+};
+
+/* create a dumb scanout buffer */
+struct drm_mode_create_dumb {
+ __u32 height;
+ __u32 width;
+ __u32 bpp;
+ __u32 flags;
+ /* handle, pitch, size will be returned */
+ __u32 handle;
+ __u32 pitch;
+ __u64 size;
+};
+
+/* set up for mmap of a dumb scanout buffer */
+struct drm_mode_map_dumb {
+ /** Handle for the object being mapped. */
+ __u32 handle;
+ __u32 pad;
+ /**
+ * Fake offset to use for subsequent mmap call
+ *
+ * This is a fixed-size type for 32/64 compatibility.
+ */
+ __u64 offset;
+};
+
+struct drm_mode_destroy_dumb {
+ __u32 handle;
+};
+
+/* page-flip flags are valid, plus: */
+#define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
+#define DRM_MODE_ATOMIC_NONBLOCK 0x0200
+#define DRM_MODE_ATOMIC_ALLOW_MODESET 0x0400
+
+#define DRM_MODE_ATOMIC_FLAGS (\
+ DRM_MODE_PAGE_FLIP_EVENT |\
+ DRM_MODE_PAGE_FLIP_ASYNC |\
+ DRM_MODE_ATOMIC_TEST_ONLY |\
+ DRM_MODE_ATOMIC_NONBLOCK |\
+ DRM_MODE_ATOMIC_ALLOW_MODESET)
+
+struct drm_mode_atomic {
+ __u32 flags;
+ __u32 count_objs;
+ __u64 objs_ptr;
+ __u64 count_props_ptr;
+ __u64 props_ptr;
+ __u64 prop_values_ptr;
+ __u64 reserved;
+ __u64 user_data;
+};
+
+struct drm_format_modifier_blob {
+#define FORMAT_BLOB_CURRENT 1
+ /* Version of this blob format */
+ __u32 version;
+
+ /* Flags */
+ __u32 flags;
+
+ /* Number of fourcc formats supported */
+ __u32 count_formats;
+
+ /* Where in this blob the formats exist (in bytes) */
+ __u32 formats_offset;
+
+ /* Number of drm_format_modifiers */
+ __u32 count_modifiers;
+
+ /* Where in this blob the modifiers exist (in bytes) */
+ __u32 modifiers_offset;
+
+ /* __u32 formats[] */
+ /* struct drm_format_modifier modifiers[] */
+};
+
+struct drm_format_modifier {
+ /* Bitmask of formats in get_plane format list this info applies to. The
+ * offset allows a sliding window of which 64 formats (bits).
+ *
+ * Some examples:
+ * In today's world with < 65 formats, and formats 0, and 2 are
+ * supported
+ * 0x0000000000000005
+ * ^-offset = 0, formats = 5
+ *
+ * If the number formats grew to 128, and formats 98-102 are
+ * supported with the modifier:
+ *
+ * 0x0000007c00000000 0000000000000000
+ * ^
+ * |__offset = 64, formats = 0x7c00000000
+ *
+ */
+ __u64 formats;
+ __u32 offset;
+ __u32 pad;
+
+ /* The modifier that applies to the >get_plane format list bitmask. */
+ __u64 modifier;
+};
+
+/**
+ * struct drm_mode_create_blob - Create New blob property
+ *
+ * Create a new 'blob' data property, copying length bytes from data pointer,
+ * and returning new blob ID.
+ */
+struct drm_mode_create_blob {
+ /** @data: Pointer to data to copy. */
+ __u64 data;
+ /** @length: Length of data to copy. */
+ __u32 length;
+ /** @blob_id: Return: new property ID. */
+ __u32 blob_id;
+};
+
+/**
+ * struct drm_mode_destroy_blob - Destroy user blob
+ * @blob_id: blob_id to destroy
+ *
+ * Destroy a user-created blob property.
+ *
+ * User-space can release blobs as soon as they do not need to refer to them by
+ * their blob object ID. For instance, if you are using a MODE_ID blob in an
+ * atomic commit and you will not make another commit re-using the same ID, you
+ * can destroy the blob as soon as the commit has been issued, without waiting
+ * for it to complete.
+ */
+struct drm_mode_destroy_blob {
+ __u32 blob_id;
+};
+
+/**
+ * struct drm_mode_create_lease - Create lease
+ *
+ * Lease mode resources, creating another drm_master.
+ *
+ * The @object_ids array must reference at least one CRTC, one connector and
+ * one plane if &DRM_CLIENT_CAP_UNIVERSAL_PLANES is enabled. Alternatively,
+ * the lease can be completely empty.
+ */
+struct drm_mode_create_lease {
+ /** @object_ids: Pointer to array of object ids (__u32) */
+ __u64 object_ids;
+ /** @object_count: Number of object ids */
+ __u32 object_count;
+ /** @flags: flags for new FD (O_CLOEXEC, etc) */
+ __u32 flags;
+
+ /** @lessee_id: Return: unique identifier for lessee. */
+ __u32 lessee_id;
+ /** @fd: Return: file descriptor to new drm_master file */
+ __u32 fd;
+};
+
+/**
+ * struct drm_mode_list_lessees - List lessees
+ *
+ * List lesses from a drm_master.
+ */
+struct drm_mode_list_lessees {
+ /**
+ * @count_lessees: Number of lessees.
+ *
+ * On input, provides length of the array.
+ * On output, provides total number. No
+ * more than the input number will be written
+ * back, so two calls can be used to get
+ * the size and then the data.
+ */
+ __u32 count_lessees;
+ /** @pad: Padding. */
+ __u32 pad;
+
+ /**
+ * @lessees_ptr: Pointer to lessees.
+ *
+ * Pointer to __u64 array of lessee ids
+ */
+ __u64 lessees_ptr;
+};
+
+/**
+ * struct drm_mode_get_lease - Get Lease
+ *
+ * Get leased objects.
+ */
+struct drm_mode_get_lease {
+ /**
+ * @count_objects: Number of leased objects.
+ *
+ * On input, provides length of the array.
+ * On output, provides total number. No
+ * more than the input number will be written
+ * back, so two calls can be used to get
+ * the size and then the data.
+ */
+ __u32 count_objects;
+ /** @pad: Padding. */
+ __u32 pad;
+
+ /**
+ * @objects_ptr: Pointer to objects.
+ *
+ * Pointer to __u32 array of object ids.
+ */
+ __u64 objects_ptr;
+};
+
+/**
+ * struct drm_mode_revoke_lease - Revoke lease
+ */
+struct drm_mode_revoke_lease {
+ /** @lessee_id: Unique ID of lessee */
+ __u32 lessee_id;
+};
+
+/**
+ * struct drm_mode_rect - Two dimensional rectangle.
+ * @x1: Horizontal starting coordinate (inclusive).
+ * @y1: Vertical starting coordinate (inclusive).
+ * @x2: Horizontal ending coordinate (exclusive).
+ * @y2: Vertical ending coordinate (exclusive).
+ *
+ * With drm subsystem using struct drm_rect to manage rectangular area this
+ * export it to user-space.
+ *
+ * Currently used by drm_mode_atomic blob property FB_DAMAGE_CLIPS.
+ */
+struct drm_mode_rect {
+ __s32 x1;
+ __s32 y1;
+ __s32 x2;
+ __s32 y2;
+};
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
diff --git a/third_party/drm/drm/xf86drm.h b/third_party/drm/drm/xf86drm.h
new file mode 100644
index 0000000..58d66f1
--- /dev/null
+++ b/third_party/drm/drm/xf86drm.h
@@ -0,0 +1,966 @@
+/**
+ * \file xf86drm.h
+ * OS-independent header for DRM user-level library interface.
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ */
+
+/*
+ * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _XF86DRM_H_
+#define _XF86DRM_H_
+
+#include <stdarg.h>
+#include <sys/types.h>
+#include <stdint.h>
+#include <drm/drm.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#ifndef DRM_MAX_MINOR
+#define DRM_MAX_MINOR 16
+#endif
+
+#if defined(__linux__)
+
+#define DRM_IOCTL_NR(n) _IOC_NR(n)
+#define DRM_IOC_VOID _IOC_NONE
+#define DRM_IOC_READ _IOC_READ
+#define DRM_IOC_WRITE _IOC_WRITE
+#define DRM_IOC_READWRITE _IOC_READ|_IOC_WRITE
+#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
+
+#else /* One of the *BSDs */
+
+#include <sys/ioccom.h>
+#define DRM_IOCTL_NR(n) ((n) & 0xff)
+#define DRM_IOC_VOID IOC_VOID
+#define DRM_IOC_READ IOC_OUT
+#define DRM_IOC_WRITE IOC_IN
+#define DRM_IOC_READWRITE IOC_INOUT
+#define DRM_IOC(dir, group, nr, size) _IOC(dir, group, nr, size)
+
+#endif
+
+ /* Defaults, if nothing set in xf86config */
+#define DRM_DEV_UID 0
+#define DRM_DEV_GID 0
+/* Default /dev/dri directory permissions 0755 */
+#define DRM_DEV_DIRMODE \
+ (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
+#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
+
+#ifdef __OpenBSD__
+#define DRM_DIR_NAME "/dev"
+#define DRM_PRIMARY_MINOR_NAME "drm"
+#define DRM_CONTROL_MINOR_NAME "drmC"
+#define DRM_RENDER_MINOR_NAME "drmR"
+#else
+#define DRM_DIR_NAME "/dev/dri"
+#define DRM_PRIMARY_MINOR_NAME "card"
+#define DRM_CONTROL_MINOR_NAME "controlD"
+#define DRM_RENDER_MINOR_NAME "renderD"
+#define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */
+#endif
+
+#define DRM_DEV_NAME "%s/" DRM_PRIMARY_MINOR_NAME "%d"
+#define DRM_CONTROL_DEV_NAME "%s/" DRM_CONTROL_MINOR_NAME "%d"
+#define DRM_RENDER_DEV_NAME "%s/" DRM_RENDER_MINOR_NAME "%d"
+
+#define DRM_NODE_NAME_MAX \
+ (sizeof(DRM_DIR_NAME) + 1 /* slash */ \
+ + MAX3(sizeof(DRM_PRIMARY_MINOR_NAME), \
+ sizeof(DRM_CONTROL_MINOR_NAME), \
+ sizeof(DRM_RENDER_MINOR_NAME)) \
+ + sizeof("144") /* highest possible node number */ \
+ + 1) /* NULL-terminator */
+
+#define DRM_ERR_NO_DEVICE (-1001)
+#define DRM_ERR_NO_ACCESS (-1002)
+#define DRM_ERR_NOT_ROOT (-1003)
+#define DRM_ERR_INVALID (-1004)
+#define DRM_ERR_NO_FD (-1005)
+
+#define DRM_AGP_NO_HANDLE 0
+
+typedef unsigned int drmSize, *drmSizePtr; /**< For mapped regions */
+typedef void *drmAddress, **drmAddressPtr; /**< For mapped regions */
+
+#if (__GNUC__ >= 3)
+#define DRM_PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a)))
+#else
+#define DRM_PRINTFLIKE(f, a)
+#endif
+
+typedef struct _drmServerInfo {
+ int (*debug_print)(const char *format, va_list ap) DRM_PRINTFLIKE(1,0);
+ int (*load_module)(const char *name);
+ void (*get_perms)(gid_t *, mode_t *);
+} drmServerInfo, *drmServerInfoPtr;
+
+typedef struct drmHashEntry {
+ int fd;
+ void (*f)(int, void *, void *);
+ void *tagTable;
+} drmHashEntry;
+
+extern int drmIoctl(int fd, unsigned long request, void *arg);
+extern void *drmGetHashTable(void);
+extern drmHashEntry *drmGetEntry(int fd);
+
+/**
+ * Driver version information.
+ *
+ * \sa drmGetVersion() and drmSetVersion().
+ */
+typedef struct _drmVersion {
+ int version_major; /**< Major version */
+ int version_minor; /**< Minor version */
+ int version_patchlevel; /**< Patch level */
+ int name_len; /**< Length of name buffer */
+ char *name; /**< Name of driver */
+ int date_len; /**< Length of date buffer */
+ char *date; /**< User-space buffer to hold date */
+ int desc_len; /**< Length of desc buffer */
+ char *desc; /**< User-space buffer to hold desc */
+} drmVersion, *drmVersionPtr;
+
+typedef struct _drmStats {
+ unsigned long count; /**< Number of data */
+ struct {
+ unsigned long value; /**< Value from kernel */
+ const char *long_format; /**< Suggested format for long_name */
+ const char *long_name; /**< Long name for value */
+ const char *rate_format; /**< Suggested format for rate_name */
+ const char *rate_name; /**< Short name for value per second */
+ int isvalue; /**< True if value (vs. counter) */
+ const char *mult_names; /**< Multiplier names (e.g., "KGM") */
+ int mult; /**< Multiplier value (e.g., 1024) */
+ int verbose; /**< Suggest only in verbose output */
+ } data[15];
+} drmStatsT;
+
+
+ /* All of these enums *MUST* match with the
+ kernel implementation -- so do *NOT*
+ change them! (The drmlib implementation
+ will just copy the flags instead of
+ translating them.) */
+typedef enum {
+ DRM_FRAME_BUFFER = 0, /**< WC, no caching, no core dump */
+ DRM_REGISTERS = 1, /**< no caching, no core dump */
+ DRM_SHM = 2, /**< shared, cached */
+ DRM_AGP = 3, /**< AGP/GART */
+ DRM_SCATTER_GATHER = 4, /**< PCI scatter/gather */
+ DRM_CONSISTENT = 5 /**< PCI consistent */
+} drmMapType;
+
+typedef enum {
+ DRM_RESTRICTED = 0x0001, /**< Cannot be mapped to client-virtual */
+ DRM_READ_ONLY = 0x0002, /**< Read-only in client-virtual */
+ DRM_LOCKED = 0x0004, /**< Physical pages locked */
+ DRM_KERNEL = 0x0008, /**< Kernel requires access */
+ DRM_WRITE_COMBINING = 0x0010, /**< Use write-combining, if available */
+ DRM_CONTAINS_LOCK = 0x0020, /**< SHM page that contains lock */
+ DRM_REMOVABLE = 0x0040 /**< Removable mapping */
+} drmMapFlags;
+
+/**
+ * \warning These values *MUST* match drm.h
+ */
+typedef enum {
+ /** \name Flags for DMA buffer dispatch */
+ /*@{*/
+ DRM_DMA_BLOCK = 0x01, /**<
+ * Block until buffer dispatched.
+ *
+ * \note the buffer may not yet have been
+ * processed by the hardware -- getting a
+ * hardware lock with the hardware quiescent
+ * will ensure that the buffer has been
+ * processed.
+ */
+ DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */
+ DRM_DMA_PRIORITY = 0x04, /**< High priority dispatch */
+ /*@}*/
+
+ /** \name Flags for DMA buffer request */
+ /*@{*/
+ DRM_DMA_WAIT = 0x10, /**< Wait for free buffers */
+ DRM_DMA_SMALLER_OK = 0x20, /**< Smaller-than-requested buffers OK */
+ DRM_DMA_LARGER_OK = 0x40 /**< Larger-than-requested buffers OK */
+ /*@}*/
+} drmDMAFlags;
+
+typedef enum {
+ DRM_PAGE_ALIGN = 0x01,
+ DRM_AGP_BUFFER = 0x02,
+ DRM_SG_BUFFER = 0x04,
+ DRM_FB_BUFFER = 0x08,
+ DRM_PCI_BUFFER_RO = 0x10
+} drmBufDescFlags;
+
+typedef enum {
+ DRM_LOCK_READY = 0x01, /**< Wait until hardware is ready for DMA */
+ DRM_LOCK_QUIESCENT = 0x02, /**< Wait until hardware quiescent */
+ DRM_LOCK_FLUSH = 0x04, /**< Flush this context's DMA queue first */
+ DRM_LOCK_FLUSH_ALL = 0x08, /**< Flush all DMA queues first */
+ /* These *HALT* flags aren't supported yet
+ -- they will be used to support the
+ full-screen DGA-like mode. */
+ DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */
+ DRM_HALT_CUR_QUEUES = 0x20 /**< Halt all current queues */
+} drmLockFlags;
+
+typedef enum {
+ DRM_CONTEXT_PRESERVED = 0x01, /**< This context is preserved and
+ never swapped. */
+ DRM_CONTEXT_2DONLY = 0x02 /**< This context is for 2D rendering only. */
+} drm_context_tFlags, *drm_context_tFlagsPtr;
+
+typedef struct _drmBufDesc {
+ int count; /**< Number of buffers of this size */
+ int size; /**< Size in bytes */
+ int low_mark; /**< Low water mark */
+ int high_mark; /**< High water mark */
+} drmBufDesc, *drmBufDescPtr;
+
+typedef struct _drmBufInfo {
+ int count; /**< Number of buffers described in list */
+ drmBufDescPtr list; /**< List of buffer descriptions */
+} drmBufInfo, *drmBufInfoPtr;
+
+typedef struct _drmBuf {
+ int idx; /**< Index into the master buffer list */
+ int total; /**< Buffer size */
+ int used; /**< Amount of buffer in use (for DMA) */
+ drmAddress address; /**< Address */
+} drmBuf, *drmBufPtr;
+
+/**
+ * Buffer mapping information.
+ *
+ * Used by drmMapBufs() and drmUnmapBufs() to store information about the
+ * mapped buffers.
+ */
+typedef struct _drmBufMap {
+ int count; /**< Number of buffers mapped */
+ drmBufPtr list; /**< Buffers */
+} drmBufMap, *drmBufMapPtr;
+
+typedef struct _drmLock {
+ volatile unsigned int lock;
+ char padding[60];
+ /* This is big enough for most current (and future?) architectures:
+ DEC Alpha: 32 bytes
+ Intel Merced: ?
+ Intel P5/PPro/PII/PIII: 32 bytes
+ Intel StrongARM: 32 bytes
+ Intel i386/i486: 16 bytes
+ MIPS: 32 bytes (?)
+ Motorola 68k: 16 bytes
+ Motorola PowerPC: 32 bytes
+ Sun SPARC: 32 bytes
+ */
+} drmLock, *drmLockPtr;
+
+/**
+ * Indices here refer to the offset into
+ * list in drmBufInfo
+ */
+typedef struct _drmDMAReq {
+ drm_context_t context; /**< Context handle */
+ int send_count; /**< Number of buffers to send */
+ int *send_list; /**< List of handles to buffers */
+ int *send_sizes; /**< Lengths of data to send, in bytes */
+ drmDMAFlags flags; /**< Flags */
+ int request_count; /**< Number of buffers requested */
+ int request_size; /**< Desired size of buffers requested */
+ int *request_list; /**< Buffer information */
+ int *request_sizes; /**< Minimum acceptable sizes */
+ int granted_count; /**< Number of buffers granted at this size */
+} drmDMAReq, *drmDMAReqPtr;
+
+typedef struct _drmRegion {
+ drm_handle_t handle;
+ unsigned int offset;
+ drmSize size;
+ drmAddress map;
+} drmRegion, *drmRegionPtr;
+
+typedef struct _drmTextureRegion {
+ unsigned char next;
+ unsigned char prev;
+ unsigned char in_use;
+ unsigned char padding; /**< Explicitly pad this out */
+ unsigned int age;
+} drmTextureRegion, *drmTextureRegionPtr;
+
+
+typedef enum {
+ DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
+ DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
+ /* bits 1-6 are reserved for high crtcs */
+ DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,
+ DRM_VBLANK_EVENT = 0x4000000, /**< Send event instead of blocking */
+ DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
+ DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
+ DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
+ DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */
+} drmVBlankSeqType;
+#define DRM_VBLANK_HIGH_CRTC_SHIFT 1
+
+typedef struct _drmVBlankReq {
+ drmVBlankSeqType type;
+ unsigned int sequence;
+ unsigned long signal;
+} drmVBlankReq, *drmVBlankReqPtr;
+
+typedef struct _drmVBlankReply {
+ drmVBlankSeqType type;
+ unsigned int sequence;
+ long tval_sec;
+ long tval_usec;
+} drmVBlankReply, *drmVBlankReplyPtr;
+
+typedef union _drmVBlank {
+ drmVBlankReq request;
+ drmVBlankReply reply;
+} drmVBlank, *drmVBlankPtr;
+
+typedef struct _drmSetVersion {
+ int drm_di_major;
+ int drm_di_minor;
+ int drm_dd_major;
+ int drm_dd_minor;
+} drmSetVersion, *drmSetVersionPtr;
+
+#define __drm_dummy_lock(lock) (*(__volatile__ unsigned int *)lock)
+
+#define DRM_LOCK_HELD 0x80000000U /**< Hardware lock is held */
+#define DRM_LOCK_CONT 0x40000000U /**< Hardware lock is contended */
+
+#if defined(__GNUC__) && (__GNUC__ >= 2)
+# if defined(__i386) || defined(__AMD64__) || defined(__x86_64__) || defined(__amd64__)
+ /* Reflect changes here to drmP.h */
+#define DRM_CAS(lock,old,new,__ret) \
+ do { \
+ int __dummy; /* Can't mark eax as clobbered */ \
+ __asm__ __volatile__( \
+ "lock ; cmpxchg %4,%1\n\t" \
+ "setnz %0" \
+ : "=d" (__ret), \
+ "=m" (__drm_dummy_lock(lock)), \
+ "=a" (__dummy) \
+ : "2" (old), \
+ "r" (new)); \
+ } while (0)
+
+#elif defined(__alpha__)
+
+#define DRM_CAS(lock, old, new, ret) \
+ do { \
+ int tmp, old32; \
+ __asm__ __volatile__( \
+ " addl $31, %5, %3\n" \
+ "1: ldl_l %0, %2\n" \
+ " cmpeq %0, %3, %1\n" \
+ " beq %1, 2f\n" \
+ " mov %4, %0\n" \
+ " stl_c %0, %2\n" \
+ " beq %0, 3f\n" \
+ " mb\n" \
+ "2: cmpeq %1, 0, %1\n" \
+ ".subsection 2\n" \
+ "3: br 1b\n" \
+ ".previous" \
+ : "=&r"(tmp), "=&r"(ret), \
+ "=m"(__drm_dummy_lock(lock)), \
+ "=&r"(old32) \
+ : "r"(new), "r"(old) \
+ : "memory"); \
+ } while (0)
+
+#elif defined(__sparc__)
+
+#define DRM_CAS(lock,old,new,__ret) \
+do { register unsigned int __old __asm("o0"); \
+ register unsigned int __new __asm("o1"); \
+ register volatile unsigned int *__lock __asm("o2"); \
+ __old = old; \
+ __new = new; \
+ __lock = (volatile unsigned int *)lock; \
+ __asm__ __volatile__( \
+ /*"cas [%2], %3, %0"*/ \
+ ".word 0xd3e29008\n\t" \
+ /*"membar #StoreStore | #StoreLoad"*/ \
+ ".word 0x8143e00a" \
+ : "=&r" (__new) \
+ : "0" (__new), \
+ "r" (__lock), \
+ "r" (__old) \
+ : "memory"); \
+ __ret = (__new != __old); \
+} while(0)
+
+#elif defined(__ia64__)
+
+#ifdef __INTEL_COMPILER
+/* this currently generates bad code (missing stop bits)... */
+#include <ia64intrin.h>
+
+#define DRM_CAS(lock,old,new,__ret) \
+ do { \
+ unsigned long __result, __old = (old) & 0xffffffff; \
+ __mf(); \
+ __result = _InterlockedCompareExchange_acq(&__drm_dummy_lock(lock), (new), __old);\
+ __ret = (__result) != (__old); \
+/* __ret = (__sync_val_compare_and_swap(&__drm_dummy_lock(lock), \
+ (old), (new)) \
+ != (old)); */\
+ } while (0)
+
+#else
+#define DRM_CAS(lock,old,new,__ret) \
+ do { \
+ unsigned int __result, __old = (old); \
+ __asm__ __volatile__( \
+ "mf\n" \
+ "mov ar.ccv=%2\n" \
+ ";;\n" \
+ "cmpxchg4.acq %0=%1,%3,ar.ccv" \
+ : "=r" (__result), "=m" (__drm_dummy_lock(lock)) \
+ : "r" ((unsigned long)__old), "r" (new) \
+ : "memory"); \
+ __ret = (__result) != (__old); \
+ } while (0)
+
+#endif
+
+#elif defined(__powerpc__)
+
+#define DRM_CAS(lock,old,new,__ret) \
+ do { \
+ __asm__ __volatile__( \
+ "sync;" \
+ "0: lwarx %0,0,%1;" \
+ " xor. %0,%3,%0;" \
+ " bne 1f;" \
+ " stwcx. %2,0,%1;" \
+ " bne- 0b;" \
+ "1: " \
+ "sync;" \
+ : "=&r"(__ret) \
+ : "r"(lock), "r"(new), "r"(old) \
+ : "cr0", "memory"); \
+ } while (0)
+
+# elif defined (__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
+ || defined (__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) \
+ || defined (__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__) \
+ || defined (__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
+ || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
+ || defined(__ARM_ARCH_7EM__)
+ /* excluding ARMv4/ARMv5 and lower (lacking ldrex/strex support) */
+ #undef DRM_DEV_MODE
+ #define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
+
+ #define DRM_CAS(lock,old,new,__ret) \
+ do { \
+ __asm__ __volatile__ ( \
+ "1: ldrex %0, [%1]\n" \
+ " teq %0, %2\n" \
+ " ite eq\n" \
+ " strexeq %0, %3, [%1]\n" \
+ " movne %0, #1\n" \
+ : "=&r" (__ret) \
+ : "r" (lock), "r" (old), "r" (new) \
+ : "cc","memory"); \
+ } while (0)
+
+#endif /* architecture */
+#endif /* __GNUC__ >= 2 */
+
+#ifndef DRM_CAS
+#define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */
+#endif
+
+#if defined(__alpha__)
+#define DRM_CAS_RESULT(_result) long _result
+#elif defined(__powerpc__)
+#define DRM_CAS_RESULT(_result) int _result
+#else
+#define DRM_CAS_RESULT(_result) char _result
+#endif
+
+#define DRM_LIGHT_LOCK(fd,lock,context) \
+ do { \
+ DRM_CAS_RESULT(__ret); \
+ DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
+ if (__ret) drmGetLock(fd,context,0); \
+ } while(0)
+
+ /* This one counts fast locks -- for
+ benchmarking only. */
+#define DRM_LIGHT_LOCK_COUNT(fd,lock,context,count) \
+ do { \
+ DRM_CAS_RESULT(__ret); \
+ DRM_CAS(lock,context,DRM_LOCK_HELD|context,__ret); \
+ if (__ret) drmGetLock(fd,context,0); \
+ else ++count; \
+ } while(0)
+
+#define DRM_LOCK(fd,lock,context,flags) \
+ do { \
+ if (flags) drmGetLock(fd,context,flags); \
+ else DRM_LIGHT_LOCK(fd,lock,context); \
+ } while(0)
+
+#define DRM_UNLOCK(fd,lock,context) \
+ do { \
+ DRM_CAS_RESULT(__ret); \
+ DRM_CAS(lock,DRM_LOCK_HELD|context,context,__ret); \
+ if (__ret) drmUnlock(fd,context); \
+ } while(0)
+
+ /* Simple spin locks */
+#define DRM_SPINLOCK(spin,val) \
+ do { \
+ DRM_CAS_RESULT(__ret); \
+ do { \
+ DRM_CAS(spin,0,val,__ret); \
+ if (__ret) while ((spin)->lock); \
+ } while (__ret); \
+ } while(0)
+
+#define DRM_SPINLOCK_TAKE(spin,val) \
+ do { \
+ DRM_CAS_RESULT(__ret); \
+ int cur; \
+ do { \
+ cur = (*spin).lock; \
+ DRM_CAS(spin,cur,val,__ret); \
+ } while (__ret); \
+ } while(0)
+
+#define DRM_SPINLOCK_COUNT(spin,val,count,__ret) \
+ do { \
+ int __i; \
+ __ret = 1; \
+ for (__i = 0; __ret && __i < count; __i++) { \
+ DRM_CAS(spin,0,val,__ret); \
+ if (__ret) for (;__i < count && (spin)->lock; __i++); \
+ } \
+ } while(0)
+
+#define DRM_SPINUNLOCK(spin,val) \
+ do { \
+ DRM_CAS_RESULT(__ret); \
+ if ((*spin).lock == val) { /* else server stole lock */ \
+ do { \
+ DRM_CAS(spin,val,0,__ret); \
+ } while (__ret); \
+ } \
+ } while(0)
+
+
+
+/* General user-level programmer's API: unprivileged */
+extern int drmAvailable(void);
+extern int drmOpen(const char *name, const char *busid);
+
+#define DRM_NODE_PRIMARY 0
+#define DRM_NODE_CONTROL 1
+#define DRM_NODE_RENDER 2
+#define DRM_NODE_MAX 3
+
+extern int drmOpenWithType(const char *name, const char *busid,
+ int type);
+
+extern int drmOpenControl(int minor);
+extern int drmOpenRender(int minor);
+extern int drmClose(int fd);
+extern drmVersionPtr drmGetVersion(int fd);
+extern drmVersionPtr drmGetLibVersion(int fd);
+extern int drmGetCap(int fd, uint64_t capability, uint64_t *value);
+extern void drmFreeVersion(drmVersionPtr);
+extern int drmGetMagic(int fd, drm_magic_t * magic);
+extern char *drmGetBusid(int fd);
+extern int drmGetInterruptFromBusID(int fd, int busnum, int devnum,
+ int funcnum);
+extern int drmGetMap(int fd, int idx, drm_handle_t *offset,
+ drmSize *size, drmMapType *type,
+ drmMapFlags *flags, drm_handle_t *handle,
+ int *mtrr);
+extern int drmGetClient(int fd, int idx, int *auth, int *pid,
+ int *uid, unsigned long *magic,
+ unsigned long *iocs);
+extern int drmGetStats(int fd, drmStatsT *stats);
+extern int drmSetInterfaceVersion(int fd, drmSetVersion *version);
+extern int drmCommandNone(int fd, unsigned long drmCommandIndex);
+extern int drmCommandRead(int fd, unsigned long drmCommandIndex,
+ void *data, unsigned long size);
+extern int drmCommandWrite(int fd, unsigned long drmCommandIndex,
+ void *data, unsigned long size);
+extern int drmCommandWriteRead(int fd, unsigned long drmCommandIndex,
+ void *data, unsigned long size);
+
+/* General user-level programmer's API: X server (root) only */
+extern void drmFreeBusid(const char *busid);
+extern int drmSetBusid(int fd, const char *busid);
+extern int drmAuthMagic(int fd, drm_magic_t magic);
+extern int drmAddMap(int fd,
+ drm_handle_t offset,
+ drmSize size,
+ drmMapType type,
+ drmMapFlags flags,
+ drm_handle_t * handle);
+extern int drmRmMap(int fd, drm_handle_t handle);
+extern int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id,
+ drm_handle_t handle);
+
+extern int drmAddBufs(int fd, int count, int size,
+ drmBufDescFlags flags,
+ int agp_offset);
+extern int drmMarkBufs(int fd, double low, double high);
+extern int drmCreateContext(int fd, drm_context_t * handle);
+extern int drmSetContextFlags(int fd, drm_context_t context,
+ drm_context_tFlags flags);
+extern int drmGetContextFlags(int fd, drm_context_t context,
+ drm_context_tFlagsPtr flags);
+extern int drmAddContextTag(int fd, drm_context_t context, void *tag);
+extern int drmDelContextTag(int fd, drm_context_t context);
+extern void *drmGetContextTag(int fd, drm_context_t context);
+extern drm_context_t * drmGetReservedContextList(int fd, int *count);
+extern void drmFreeReservedContextList(drm_context_t *);
+extern int drmSwitchToContext(int fd, drm_context_t context);
+extern int drmDestroyContext(int fd, drm_context_t handle);
+extern int drmCreateDrawable(int fd, drm_drawable_t * handle);
+extern int drmDestroyDrawable(int fd, drm_drawable_t handle);
+extern int drmUpdateDrawableInfo(int fd, drm_drawable_t handle,
+ drm_drawable_info_type_t type,
+ unsigned int num, void *data);
+extern int drmCtlInstHandler(int fd, int irq);
+extern int drmCtlUninstHandler(int fd);
+extern int drmSetClientCap(int fd, uint64_t capability,
+ uint64_t value);
+
+extern int drmCrtcGetSequence(int fd, uint32_t crtcId,
+ uint64_t *sequence, uint64_t *ns);
+extern int drmCrtcQueueSequence(int fd, uint32_t crtcId,
+ uint32_t flags, uint64_t sequence,
+ uint64_t *sequence_queued,
+ uint64_t user_data);
+/* General user-level programmer's API: authenticated client and/or X */
+extern int drmMap(int fd,
+ drm_handle_t handle,
+ drmSize size,
+ drmAddressPtr address);
+extern int drmUnmap(drmAddress address, drmSize size);
+extern drmBufInfoPtr drmGetBufInfo(int fd);
+extern drmBufMapPtr drmMapBufs(int fd);
+extern int drmUnmapBufs(drmBufMapPtr bufs);
+extern int drmDMA(int fd, drmDMAReqPtr request);
+extern int drmFreeBufs(int fd, int count, int *list);
+extern int drmGetLock(int fd,
+ drm_context_t context,
+ drmLockFlags flags);
+extern int drmUnlock(int fd, drm_context_t context);
+extern int drmFinish(int fd, int context, drmLockFlags flags);
+extern int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id,
+ drm_handle_t * handle);
+
+/* AGP/GART support: X server (root) only */
+extern int drmAgpAcquire(int fd);
+extern int drmAgpRelease(int fd);
+extern int drmAgpEnable(int fd, unsigned long mode);
+extern int drmAgpAlloc(int fd, unsigned long size,
+ unsigned long type, unsigned long *address,
+ drm_handle_t *handle);
+extern int drmAgpFree(int fd, drm_handle_t handle);
+extern int drmAgpBind(int fd, drm_handle_t handle,
+ unsigned long offset);
+extern int drmAgpUnbind(int fd, drm_handle_t handle);
+
+/* AGP/GART info: authenticated client and/or X */
+extern int drmAgpVersionMajor(int fd);
+extern int drmAgpVersionMinor(int fd);
+extern unsigned long drmAgpGetMode(int fd);
+extern unsigned long drmAgpBase(int fd); /* Physical location */
+extern unsigned long drmAgpSize(int fd); /* Bytes */
+extern unsigned long drmAgpMemoryUsed(int fd);
+extern unsigned long drmAgpMemoryAvail(int fd);
+extern unsigned int drmAgpVendorId(int fd);
+extern unsigned int drmAgpDeviceId(int fd);
+
+/* PCI scatter/gather support: X server (root) only */
+extern int drmScatterGatherAlloc(int fd, unsigned long size,
+ drm_handle_t *handle);
+extern int drmScatterGatherFree(int fd, drm_handle_t handle);
+
+extern int drmWaitVBlank(int fd, drmVBlankPtr vbl);
+
+/* Support routines */
+extern void drmSetServerInfo(drmServerInfoPtr info);
+extern int drmError(int err, const char *label);
+extern void *drmMalloc(int size);
+extern void drmFree(void *pt);
+
+/* Hash table routines */
+extern void *drmHashCreate(void);
+extern int drmHashDestroy(void *t);
+extern int drmHashLookup(void *t, unsigned long key, void **value);
+extern int drmHashInsert(void *t, unsigned long key, void *value);
+extern int drmHashDelete(void *t, unsigned long key);
+extern int drmHashFirst(void *t, unsigned long *key, void **value);
+extern int drmHashNext(void *t, unsigned long *key, void **value);
+
+/* PRNG routines */
+extern void *drmRandomCreate(unsigned long seed);
+extern int drmRandomDestroy(void *state);
+extern unsigned long drmRandom(void *state);
+extern double drmRandomDouble(void *state);
+
+/* Skip list routines */
+
+extern void *drmSLCreate(void);
+extern int drmSLDestroy(void *l);
+extern int drmSLLookup(void *l, unsigned long key, void **value);
+extern int drmSLInsert(void *l, unsigned long key, void *value);
+extern int drmSLDelete(void *l, unsigned long key);
+extern int drmSLNext(void *l, unsigned long *key, void **value);
+extern int drmSLFirst(void *l, unsigned long *key, void **value);
+extern void drmSLDump(void *l);
+extern int drmSLLookupNeighbors(void *l, unsigned long key,
+ unsigned long *prev_key, void **prev_value,
+ unsigned long *next_key, void **next_value);
+
+extern int drmOpenOnce(void *unused, const char *BusID, int *newlyopened);
+extern int drmOpenOnceWithType(const char *BusID, int *newlyopened, int type);
+extern void drmCloseOnce(int fd);
+extern void drmMsg(const char *format, ...) DRM_PRINTFLIKE(1, 2);
+
+extern int drmSetMaster(int fd);
+extern int drmDropMaster(int fd);
+extern int drmIsMaster(int fd);
+
+#define DRM_EVENT_CONTEXT_VERSION 4
+
+typedef struct _drmEventContext {
+
+ /* This struct is versioned so we can add more pointers if we
+ * add more events. */
+ int version;
+
+ void (*vblank_handler)(int fd,
+ unsigned int sequence,
+ unsigned int tv_sec,
+ unsigned int tv_usec,
+ void *user_data);
+
+ void (*page_flip_handler)(int fd,
+ unsigned int sequence,
+ unsigned int tv_sec,
+ unsigned int tv_usec,
+ void *user_data);
+
+ void (*page_flip_handler2)(int fd,
+ unsigned int sequence,
+ unsigned int tv_sec,
+ unsigned int tv_usec,
+ unsigned int crtc_id,
+ void *user_data);
+
+ void (*sequence_handler)(int fd,
+ uint64_t sequence,
+ uint64_t ns,
+ uint64_t user_data);
+} drmEventContext, *drmEventContextPtr;
+
+extern int drmHandleEvent(int fd, drmEventContextPtr evctx);
+
+extern char *drmGetDeviceNameFromFd(int fd);
+
+/* Improved version of drmGetDeviceNameFromFd which attributes for any type of
+ * device/node - card, control or renderD.
+ */
+extern char *drmGetDeviceNameFromFd2(int fd);
+extern int drmGetNodeTypeFromFd(int fd);
+
+/* Convert between GEM handles and DMA-BUF file descriptors.
+ *
+ * Warning: since GEM handles are not reference-counted and are unique per
+ * DRM file description, the caller is expected to perform its own reference
+ * counting. drmPrimeFDToHandle is guaranteed to return the same handle for
+ * different FDs if they reference the same underlying buffer object. This
+ * could even be a buffer object originally created on the same DRM FD.
+ *
+ * When sharing a DRM FD with an API such as EGL or GBM, the caller must not
+ * use drmPrimeHandleToFD nor drmPrimeFDToHandle. A single user-space
+ * reference-counting implementation is necessary to avoid double-closing GEM
+ * handles.
+ *
+ * Two processes can't share the same DRM FD and both use it to create or
+ * import GEM handles, even when using a single user-space reference-counting
+ * implementation like GBM, because GBM doesn't share its state between
+ * processes.
+ */
+extern int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd);
+extern int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle);
+
+extern int drmCloseBufferHandle(int fd, uint32_t handle);
+
+extern char *drmGetPrimaryDeviceNameFromFd(int fd);
+extern char *drmGetRenderDeviceNameFromFd(int fd);
+
+#define DRM_BUS_PCI 0
+#define DRM_BUS_USB 1
+#define DRM_BUS_PLATFORM 2
+#define DRM_BUS_HOST1X 3
+
+typedef struct _drmPciBusInfo {
+ uint16_t domain;
+ uint8_t bus;
+ uint8_t dev;
+ uint8_t func;
+} drmPciBusInfo, *drmPciBusInfoPtr;
+
+typedef struct _drmPciDeviceInfo {
+ uint16_t vendor_id;
+ uint16_t device_id;
+ uint16_t subvendor_id;
+ uint16_t subdevice_id;
+ uint8_t revision_id;
+} drmPciDeviceInfo, *drmPciDeviceInfoPtr;
+
+typedef struct _drmUsbBusInfo {
+ uint8_t bus;
+ uint8_t dev;
+} drmUsbBusInfo, *drmUsbBusInfoPtr;
+
+typedef struct _drmUsbDeviceInfo {
+ uint16_t vendor;
+ uint16_t product;
+} drmUsbDeviceInfo, *drmUsbDeviceInfoPtr;
+
+#define DRM_PLATFORM_DEVICE_NAME_LEN 512
+
+typedef struct _drmPlatformBusInfo {
+ char fullname[DRM_PLATFORM_DEVICE_NAME_LEN];
+} drmPlatformBusInfo, *drmPlatformBusInfoPtr;
+
+typedef struct _drmPlatformDeviceInfo {
+ char **compatible; /* NULL terminated list of compatible strings */
+} drmPlatformDeviceInfo, *drmPlatformDeviceInfoPtr;
+
+#define DRM_HOST1X_DEVICE_NAME_LEN 512
+
+typedef struct _drmHost1xBusInfo {
+ char fullname[DRM_HOST1X_DEVICE_NAME_LEN];
+} drmHost1xBusInfo, *drmHost1xBusInfoPtr;
+
+typedef struct _drmHost1xDeviceInfo {
+ char **compatible; /* NULL terminated list of compatible strings */
+} drmHost1xDeviceInfo, *drmHost1xDeviceInfoPtr;
+
+typedef struct _drmDevice {
+ char **nodes; /* DRM_NODE_MAX sized array */
+ int available_nodes; /* DRM_NODE_* bitmask */
+ int bustype;
+ union {
+ drmPciBusInfoPtr pci;
+ drmUsbBusInfoPtr usb;
+ drmPlatformBusInfoPtr platform;
+ drmHost1xBusInfoPtr host1x;
+ } businfo;
+ union {
+ drmPciDeviceInfoPtr pci;
+ drmUsbDeviceInfoPtr usb;
+ drmPlatformDeviceInfoPtr platform;
+ drmHost1xDeviceInfoPtr host1x;
+ } deviceinfo;
+} drmDevice, *drmDevicePtr;
+
+extern int drmGetDevice(int fd, drmDevicePtr *device);
+extern void drmFreeDevice(drmDevicePtr *device);
+
+extern int drmGetDevices(drmDevicePtr devices[], int max_devices);
+extern void drmFreeDevices(drmDevicePtr devices[], int count);
+
+#define DRM_DEVICE_GET_PCI_REVISION (1 << 0)
+extern int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device);
+extern int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices);
+
+extern int drmGetDeviceFromDevId(dev_t dev_id, uint32_t flags, drmDevicePtr *device);
+
+extern int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b);
+
+extern int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle);
+extern int drmSyncobjDestroy(int fd, uint32_t handle);
+extern int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd);
+extern int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle);
+
+extern int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd);
+extern int drmSyncobjExportSyncFile(int fd, uint32_t handle, int *sync_file_fd);
+extern int drmSyncobjWait(int fd, uint32_t *handles, unsigned num_handles,
+ int64_t timeout_nsec, unsigned flags,
+ uint32_t *first_signaled);
+extern int drmSyncobjReset(int fd, const uint32_t *handles, uint32_t handle_count);
+extern int drmSyncobjSignal(int fd, const uint32_t *handles, uint32_t handle_count);
+extern int drmSyncobjTimelineSignal(int fd, const uint32_t *handles,
+ uint64_t *points, uint32_t handle_count);
+extern int drmSyncobjTimelineWait(int fd, uint32_t *handles, uint64_t *points,
+ unsigned num_handles,
+ int64_t timeout_nsec, unsigned flags,
+ uint32_t *first_signaled);
+extern int drmSyncobjQuery(int fd, uint32_t *handles, uint64_t *points,
+ uint32_t handle_count);
+extern int drmSyncobjQuery2(int fd, uint32_t *handles, uint64_t *points,
+ uint32_t handle_count, uint32_t flags);
+extern int drmSyncobjTransfer(int fd,
+ uint32_t dst_handle, uint64_t dst_point,
+ uint32_t src_handle, uint64_t src_point,
+ uint32_t flags);
+
+extern char *
+drmGetFormatModifierVendor(uint64_t modifier);
+
+extern char *
+drmGetFormatModifierName(uint64_t modifier);
+
+#ifndef fourcc_mod_get_vendor
+#define fourcc_mod_get_vendor(modifier) \
+ (((modifier) >> 56) & 0xff)
+#endif
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif
diff --git a/third_party/drm/libdrm/moz.build b/third_party/drm/libdrm/moz.build
new file mode 100644
index 0000000..3b37b91
--- /dev/null
+++ b/third_party/drm/libdrm/moz.build
@@ -0,0 +1,16 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+ 'mozdrm.cpp',
+]
+
+if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
+ CXXFLAGS += CONFIG['MOZ_GTK3_CFLAGS']
+
+LOCAL_INCLUDES += ['/third_party/drm']
+
+FINAL_LIBRARY = 'xul'
diff --git a/third_party/drm/libdrm/mozdrm.cpp b/third_party/drm/libdrm/mozdrm.cpp
new file mode 100644
index 0000000..b2fb59b
--- /dev/null
+++ b/third_party/drm/libdrm/mozdrm.cpp
@@ -0,0 +1,66 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/Types.h"
+#include "prlink.h"
+
+#include <drm/xf86drm.h>
+
+#define GET_FUNC(func, lib) \
+ func##_fn = \
+ (decltype(func##_fn))PR_FindFunctionSymbol(lib, #func) \
+
+#define IS_FUNC_LOADED(func) \
+ (func != nullptr) \
+
+static int (*drmGetDevices2_fn)(uint32_t flags, drmDevicePtr devices[], int max_devices);
+static void (*drmFreeDevices_fn)(drmDevicePtr devices[], int count);
+
+bool IsDRMLibraryLoaded() {
+ static bool isLoaded =
+ (IS_FUNC_LOADED(drmGetDevices2_fn) &&
+ IS_FUNC_LOADED(drmFreeDevices_fn));
+
+ return isLoaded;
+}
+
+bool LoadDRMLibrary() {
+ static PRLibrary* drmLib = nullptr;
+ static bool drmInitialized = false;
+
+ //TODO Thread safe
+ if (!drmInitialized) {
+ drmInitialized = true;
+ drmLib = PR_LoadLibrary("libdrm.so.2");
+ if (!drmLib) {
+ return false;
+ }
+
+ GET_FUNC(drmGetDevices2, drmLib);
+ GET_FUNC(drmFreeDevices, drmLib);
+ }
+
+ return IsDRMLibraryLoaded();
+}
+
+int
+drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices)
+{
+ if (!LoadDRMLibrary()) {
+ return 0;
+ }
+ return drmGetDevices2_fn(flags, devices, max_devices);
+}
+
+void
+drmFreeDevices(drmDevicePtr devices[], int count)
+{
+ if (!LoadDRMLibrary()) {
+ return;
+ }
+ return drmFreeDevices_fn(devices, count);
+}
diff --git a/third_party/gbm/README b/third_party/gbm/README
new file mode 100644
index 0000000..4b6e2e8
--- /dev/null
+++ b/third_party/gbm/README
@@ -0,0 +1,4 @@
+Libgbm is a gbm library wrapper needed to build and run Firefox with
+Pipewire support on Linux (https://gitlab.freedesktop.org/mesa/gbm).
+
+libgbm directory stores headers of libgbm needed for build only.
diff --git a/third_party/gbm/gbm/gbm.h b/third_party/gbm/gbm/gbm.h
new file mode 100644
index 0000000..a963ed7
--- /dev/null
+++ b/third_party/gbm/gbm/gbm.h
@@ -0,0 +1,452 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Benjamin Franzke <benjaminfranzke@googlemail.com>
+ */
+
+#ifndef _GBM_H_
+#define _GBM_H_
+
+#define __GBM__ 1
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * \file gbm.h
+ * \brief Generic Buffer Manager
+ */
+
+struct gbm_device;
+struct gbm_bo;
+struct gbm_surface;
+
+/**
+ * \mainpage The Generic Buffer Manager
+ *
+ * This module provides an abstraction that the caller can use to request a
+ * buffer from the underlying memory management system for the platform.
+ *
+ * This allows the creation of portable code whilst still allowing access to
+ * the underlying memory manager.
+ */
+
+/**
+ * Abstraction representing the handle to a buffer allocated by the
+ * manager
+ */
+union gbm_bo_handle {
+ void *ptr;
+ int32_t s32;
+ uint32_t u32;
+ int64_t s64;
+ uint64_t u64;
+};
+
+/** Format of the allocated buffer */
+enum gbm_bo_format {
+ /** RGB with 8 bits per channel in a 32 bit value */
+ GBM_BO_FORMAT_XRGB8888,
+ /** ARGB with 8 bits per channel in a 32 bit value */
+ GBM_BO_FORMAT_ARGB8888
+};
+
+
+/**
+ * The FourCC format codes are taken from the drm_fourcc.h definition, and
+ * re-namespaced. New GBM formats must not be added, unless they are
+ * identical ports from drm_fourcc.
+ */
+#define __gbm_fourcc_code(a,b,c,d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | \
+ ((uint32_t)(c) << 16) | ((uint32_t)(d) << 24))
+
+#define GBM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */
+
+/* color index */
+#define GBM_FORMAT_C8 __gbm_fourcc_code('C', '8', ' ', ' ') /* [7:0] C */
+
+/* 8 bpp Red */
+#define GBM_FORMAT_R8 __gbm_fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
+
+/* 16 bpp Red */
+#define GBM_FORMAT_R16 __gbm_fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */
+
+/* 16 bpp RG */
+#define GBM_FORMAT_GR88 __gbm_fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
+
+/* 8 bpp RGB */
+#define GBM_FORMAT_RGB332 __gbm_fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
+#define GBM_FORMAT_BGR233 __gbm_fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
+
+/* 16 bpp RGB */
+#define GBM_FORMAT_XRGB4444 __gbm_fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
+#define GBM_FORMAT_XBGR4444 __gbm_fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
+#define GBM_FORMAT_RGBX4444 __gbm_fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
+#define GBM_FORMAT_BGRX4444 __gbm_fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */
+
+#define GBM_FORMAT_ARGB4444 __gbm_fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
+#define GBM_FORMAT_ABGR4444 __gbm_fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
+#define GBM_FORMAT_RGBA4444 __gbm_fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
+#define GBM_FORMAT_BGRA4444 __gbm_fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */
+
+#define GBM_FORMAT_XRGB1555 __gbm_fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
+#define GBM_FORMAT_XBGR1555 __gbm_fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
+#define GBM_FORMAT_RGBX5551 __gbm_fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
+#define GBM_FORMAT_BGRX5551 __gbm_fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */
+
+#define GBM_FORMAT_ARGB1555 __gbm_fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
+#define GBM_FORMAT_ABGR1555 __gbm_fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
+#define GBM_FORMAT_RGBA5551 __gbm_fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
+#define GBM_FORMAT_BGRA5551 __gbm_fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */
+
+#define GBM_FORMAT_RGB565 __gbm_fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
+#define GBM_FORMAT_BGR565 __gbm_fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */
+
+/* 24 bpp RGB */
+#define GBM_FORMAT_RGB888 __gbm_fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
+#define GBM_FORMAT_BGR888 __gbm_fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */
+
+/* 32 bpp RGB */
+#define GBM_FORMAT_XRGB8888 __gbm_fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
+#define GBM_FORMAT_XBGR8888 __gbm_fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
+#define GBM_FORMAT_RGBX8888 __gbm_fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
+#define GBM_FORMAT_BGRX8888 __gbm_fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */
+
+#define GBM_FORMAT_ARGB8888 __gbm_fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
+#define GBM_FORMAT_ABGR8888 __gbm_fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
+#define GBM_FORMAT_RGBA8888 __gbm_fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
+#define GBM_FORMAT_BGRA8888 __gbm_fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */
+
+#define GBM_FORMAT_XRGB2101010 __gbm_fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
+#define GBM_FORMAT_XBGR2101010 __gbm_fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
+#define GBM_FORMAT_RGBX1010102 __gbm_fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
+#define GBM_FORMAT_BGRX1010102 __gbm_fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */
+
+#define GBM_FORMAT_ARGB2101010 __gbm_fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
+#define GBM_FORMAT_ABGR2101010 __gbm_fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
+#define GBM_FORMAT_RGBA1010102 __gbm_fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
+#define GBM_FORMAT_BGRA1010102 __gbm_fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */
+
+/*
+ * Floating point 64bpp RGB
+ * IEEE 754-2008 binary16 half-precision float
+ * [15:0] sign:exponent:mantissa 1:5:10
+ */
+#define GBM_FORMAT_XBGR16161616F __gbm_fourcc_code('X', 'B', '4', 'H') /* [63:0] x:B:G:R 16:16:16:16 little endian */
+
+#define GBM_FORMAT_ABGR16161616F __gbm_fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */
+
+/* packed YCbCr */
+#define GBM_FORMAT_YUYV __gbm_fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
+#define GBM_FORMAT_YVYU __gbm_fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
+#define GBM_FORMAT_UYVY __gbm_fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
+#define GBM_FORMAT_VYUY __gbm_fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
+
+#define GBM_FORMAT_AYUV __gbm_fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
+
+/*
+ * 2 plane YCbCr
+ * index 0 = Y plane, [7:0] Y
+ * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
+ * or
+ * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
+ */
+#define GBM_FORMAT_NV12 __gbm_fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */
+#define GBM_FORMAT_NV21 __gbm_fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
+#define GBM_FORMAT_NV16 __gbm_fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
+#define GBM_FORMAT_NV61 __gbm_fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
+
+/*
+ * 3 plane YCbCr
+ * index 0: Y plane, [7:0] Y
+ * index 1: Cb plane, [7:0] Cb
+ * index 2: Cr plane, [7:0] Cr
+ * or
+ * index 1: Cr plane, [7:0] Cr
+ * index 2: Cb plane, [7:0] Cb
+ */
+#define GBM_FORMAT_YUV410 __gbm_fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU410 __gbm_fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV411 __gbm_fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU411 __gbm_fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV420 __gbm_fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU420 __gbm_fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV422 __gbm_fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU422 __gbm_fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV444 __gbm_fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU444 __gbm_fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */
+
+struct gbm_format_name_desc {
+ char name[5];
+};
+
+/**
+ * Flags to indicate the intended use for the buffer - these are passed into
+ * gbm_bo_create(). The caller must set the union of all the flags that are
+ * appropriate
+ *
+ * \sa Use gbm_device_is_format_supported() to check if the combination of format
+ * and use flags are supported
+ */
+enum gbm_bo_flags {
+ /**
+ * Buffer is going to be presented to the screen using an API such as KMS
+ */
+ GBM_BO_USE_SCANOUT = (1 << 0),
+ /**
+ * Buffer is going to be used as cursor
+ */
+ GBM_BO_USE_CURSOR = (1 << 1),
+ /**
+ * Deprecated
+ */
+ GBM_BO_USE_CURSOR_64X64 = GBM_BO_USE_CURSOR,
+ /**
+ * Buffer is to be used for rendering - for example it is going to be used
+ * as the storage for a color buffer
+ */
+ GBM_BO_USE_RENDERING = (1 << 2),
+ /**
+ * Buffer can be used for gbm_bo_write. This is guaranteed to work
+ * with GBM_BO_USE_CURSOR, but may not work for other combinations.
+ */
+ GBM_BO_USE_WRITE = (1 << 3),
+ /**
+ * Buffer is linear, i.e. not tiled.
+ */
+ GBM_BO_USE_LINEAR = (1 << 4),
+ /**
+ * Buffer is protected, i.e. encrypted and not readable by CPU or any
+ * other non-secure / non-trusted components nor by non-trusted OpenGL,
+ * OpenCL, and Vulkan applications.
+ */
+ GBM_BO_USE_PROTECTED = (1 << 5),
+};
+
+int
+gbm_device_get_fd(struct gbm_device *gbm);
+
+const char *
+gbm_device_get_backend_name(struct gbm_device *gbm);
+
+int
+gbm_device_is_format_supported(struct gbm_device *gbm,
+ uint32_t format, uint32_t flags);
+
+int
+gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm,
+ uint32_t format,
+ uint64_t modifier);
+
+void
+gbm_device_destroy(struct gbm_device *gbm);
+
+struct gbm_device *
+gbm_create_device(int fd);
+
+struct gbm_bo *
+gbm_bo_create(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format, uint32_t flags);
+
+struct gbm_bo *
+gbm_bo_create_with_modifiers(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers,
+ const unsigned int count);
+
+struct gbm_bo *
+gbm_bo_create_with_modifiers2(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers,
+ const unsigned int count,
+ uint32_t flags);
+
+#define GBM_BO_IMPORT_WL_BUFFER 0x5501
+#define GBM_BO_IMPORT_EGL_IMAGE 0x5502
+#define GBM_BO_IMPORT_FD 0x5503
+#define GBM_BO_IMPORT_FD_MODIFIER 0x5504
+
+struct gbm_import_fd_data {
+ int fd;
+ uint32_t width;
+ uint32_t height;
+ uint32_t stride;
+ uint32_t format;
+};
+
+#define GBM_MAX_PLANES 4
+
+struct gbm_import_fd_modifier_data {
+ uint32_t width;
+ uint32_t height;
+ uint32_t format;
+ uint32_t num_fds;
+ int fds[GBM_MAX_PLANES];
+ int strides[GBM_MAX_PLANES];
+ int offsets[GBM_MAX_PLANES];
+ uint64_t modifier;
+};
+
+struct gbm_bo *
+gbm_bo_import(struct gbm_device *gbm, uint32_t type,
+ void *buffer, uint32_t flags);
+
+/**
+ * Flags to indicate the type of mapping for the buffer - these are
+ * passed into gbm_bo_map(). The caller must set the union of all the
+ * flags that are appropriate.
+ *
+ * These flags are independent of the GBM_BO_USE_* creation flags. However,
+ * mapping the buffer may require copying to/from a staging buffer.
+ *
+ * See also: pipe_map_flags
+ */
+enum gbm_bo_transfer_flags {
+ /**
+ * Buffer contents read back (or accessed directly) at transfer
+ * create time.
+ */
+ GBM_BO_TRANSFER_READ = (1 << 0),
+ /**
+ * Buffer contents will be written back at unmap time
+ * (or modified as a result of being accessed directly).
+ */
+ GBM_BO_TRANSFER_WRITE = (1 << 1),
+ /**
+ * Read/modify/write
+ */
+ GBM_BO_TRANSFER_READ_WRITE = (GBM_BO_TRANSFER_READ | GBM_BO_TRANSFER_WRITE),
+};
+
+void *
+gbm_bo_map(struct gbm_bo *bo,
+ uint32_t x, uint32_t y, uint32_t width, uint32_t height,
+ uint32_t flags, uint32_t *stride, void **map_data);
+
+void
+gbm_bo_unmap(struct gbm_bo *bo, void *map_data);
+
+uint32_t
+gbm_bo_get_width(struct gbm_bo *bo);
+
+uint32_t
+gbm_bo_get_height(struct gbm_bo *bo);
+
+uint32_t
+gbm_bo_get_stride(struct gbm_bo *bo);
+
+uint32_t
+gbm_bo_get_stride_for_plane(struct gbm_bo *bo, int plane);
+
+uint32_t
+gbm_bo_get_format(struct gbm_bo *bo);
+
+uint32_t
+gbm_bo_get_bpp(struct gbm_bo *bo);
+
+uint32_t
+gbm_bo_get_offset(struct gbm_bo *bo, int plane);
+
+struct gbm_device *
+gbm_bo_get_device(struct gbm_bo *bo);
+
+union gbm_bo_handle
+gbm_bo_get_handle(struct gbm_bo *bo);
+
+int
+gbm_bo_get_fd(struct gbm_bo *bo);
+
+uint64_t
+gbm_bo_get_modifier(struct gbm_bo *bo);
+
+int
+gbm_bo_get_plane_count(struct gbm_bo *bo);
+
+union gbm_bo_handle
+gbm_bo_get_handle_for_plane(struct gbm_bo *bo, int plane);
+
+int
+gbm_bo_get_fd_for_plane(struct gbm_bo *bo, int plane);
+
+int
+gbm_bo_write(struct gbm_bo *bo, const void *buf, size_t count);
+
+void
+gbm_bo_set_user_data(struct gbm_bo *bo, void *data,
+ void (*destroy_user_data)(struct gbm_bo *, void *));
+
+void *
+gbm_bo_get_user_data(struct gbm_bo *bo);
+
+void
+gbm_bo_destroy(struct gbm_bo *bo);
+
+struct gbm_surface *
+gbm_surface_create(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format, uint32_t flags);
+
+struct gbm_surface *
+gbm_surface_create_with_modifiers(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers,
+ const unsigned int count);
+
+struct gbm_surface *
+gbm_surface_create_with_modifiers2(struct gbm_device *gbm,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers,
+ const unsigned int count,
+ uint32_t flags);
+
+struct gbm_bo *
+gbm_surface_lock_front_buffer(struct gbm_surface *surface);
+
+void
+gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo);
+
+int
+gbm_surface_has_free_buffers(struct gbm_surface *surface);
+
+void
+gbm_surface_destroy(struct gbm_surface *surface);
+
+char *
+gbm_format_get_name(uint32_t gbm_format, struct gbm_format_name_desc *desc);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/third_party/gbm/libgbm/moz.build b/third_party/gbm/libgbm/moz.build
new file mode 100644
index 0000000..0953d2f
--- /dev/null
+++ b/third_party/gbm/libgbm/moz.build
@@ -0,0 +1,16 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+ 'mozgbm.cpp',
+]
+
+if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":
+ CXXFLAGS += CONFIG['MOZ_GTK3_CFLAGS']
+
+LOCAL_INCLUDES += ['/third_party/gbm']
+
+FINAL_LIBRARY = 'xul'
diff --git a/third_party/gbm/libgbm/mozgbm.cpp b/third_party/gbm/libgbm/mozgbm.cpp
new file mode 100644
index 0000000..bc024a1
--- /dev/null
+++ b/third_party/gbm/libgbm/mozgbm.cpp
@@ -0,0 +1,66 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/Types.h"
+#include "prlink.h"
+
+#include <gbm/gbm.h>
+
+#define GET_FUNC(func, lib) \
+ func##_fn = \
+ (decltype(func##_fn))PR_FindFunctionSymbol(lib, #func) \
+
+#define IS_FUNC_LOADED(func) \
+ (func != nullptr) \
+
+static struct gbm_device * (*gbm_create_device_fn)(int fd);
+static void (*gbm_device_destroy_fn)(struct gbm_device* gbm);
+
+bool IsGBMLibraryLoaded() {
+ static bool isLoaded =
+ (IS_FUNC_LOADED(gbm_create_device_fn) &&
+ IS_FUNC_LOADED(gbm_device_destroy_fn));
+
+ return isLoaded;
+}
+
+bool LoadGBMLibrary() {
+ static PRLibrary* gbmLib = nullptr;
+ static bool gbmInitialized = false;
+
+ //TODO Thread safe
+ if (!gbmInitialized) {
+ gbmInitialized = true;
+ gbmLib = PR_LoadLibrary("libgbm.so.1");
+ if (!gbmLib) {
+ return false;
+ }
+
+ GET_FUNC(gbm_create_device, gbmLib);
+ GET_FUNC(gbm_device_destroy, gbmLib);
+ }
+
+ return IsGBMLibraryLoaded();
+}
+
+struct gbm_device *
+gbm_create_device(int fd)
+{
+ if (!LoadGBMLibrary()) {
+ return nullptr;
+ }
+ return gbm_create_device_fn(fd);
+}
+
+void
+gbm_device_destroy(struct gbm_device* gbm)
+{
+ if (!LoadGBMLibrary()) {
+ return;
+ }
+ return gbm_device_destroy_fn(gbm);
+}
diff --git a/third_party/libwebrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build b/third_party/libwebrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
index a5cf923..99cabbf 100644
--- a/third_party/libwebrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
+++ b/third_party/libwebrtc/modules/desktop_capture/desktop_capture_generic_gn/moz.build
@@ -77,6 +77,8 @@ if CONFIG["OS_TARGET"] == "Darwin":
LOCAL_INCLUDES += [
"/media/libyuv/libyuv/include/",
"/media/libyuv/libyuv/include/",
+ "/third_party/drm/",
+ "/third_party/gbm/",
"/third_party/pipewire/"
]
@@ -108,7 +110,8 @@ if CONFIG["OS_TARGET"] == "Linux":
LOCAL_INCLUDES += [
"/media/libyuv/libyuv/include/",
"/media/libyuv/libyuv/include/",
- "/third_party/pipewire/",
+ "/third_party/drm/",
+ "/third_party/gbm/",
"/third_party/pipewire/"
]
@@ -126,15 +129,18 @@ if CONFIG["OS_TARGET"] == "Linux":
]
SOURCES += [
- "/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc"
+ "/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.cc"
]
UNIFIED_SOURCES += [
"/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_x11.cc",
- "/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_x11.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/shared_x_display.cc",
- "/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_x11.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/window_finder_x11.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/window_list_utils.cc",
@@ -162,6 +168,8 @@ if CONFIG["OS_TARGET"] == "OpenBSD":
LOCAL_INCLUDES += [
"/media/libyuv/libyuv/include/",
+ "/third_party/drm/",
+ "/third_party/gbm/",
"/third_party/pipewire/"
]
@@ -177,15 +185,18 @@ if CONFIG["OS_TARGET"] == "OpenBSD":
]
SOURCES += [
- "/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc"
+ "/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.cc",
+ "/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.cc"
]
UNIFIED_SOURCES += [
"/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_x11.cc",
- "/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_x11.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/shared_x_display.cc",
- "/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_x11.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/window_finder_x11.cc",
"/third_party/libwebrtc/modules/desktop_capture/linux/window_list_utils.cc",
@@ -227,6 +238,7 @@ if CONFIG["OS_TARGET"] == "WINNT":
LOCAL_INCLUDES += [
"/media/libyuv/libyuv/include/",
"/media/libyuv/libyuv/include/",
+ "/third_party/drm/"
"/third_party/pipewire/"
]
diff --git a/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.cc b/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.cc
index c89896d..c8ef822 100644
--- a/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.cc
+++ b/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.cc
@@ -14,6 +14,9 @@
#elif defined(WEBRTC_WIN)
#include "modules/desktop_capture/win/full_screen_win_application_handler.h"
#endif
+#if defined(WEBRTC_USE_PIPEWIRE)
+#include "modules/desktop_capture/linux/shared_screencast_stream.h"
+#endif
namespace webrtc {
@@ -35,6 +38,9 @@ DesktopCaptureOptions DesktopCaptureOptions::CreateDefault() {
#if defined(WEBRTC_USE_X11)
result.set_x_display(SharedXDisplay::CreateDefault());
#endif
+#if defined(WEBRTC_USE_PIPEWIRE)
+ result.set_screencast_stream(SharedScreenCastStream::CreateDefault());
+#endif
#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
result.set_configuration_monitor(new DesktopConfigurationMonitor());
result.set_full_screen_window_detector(
diff --git a/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.h b/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.h
index ee0dd3a..ac56c8c 100644
--- a/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.h
+++ b/third_party/libwebrtc/modules/desktop_capture/desktop_capture_options.h
@@ -17,6 +17,10 @@
#include "modules/desktop_capture/linux/shared_x_display.h"
#endif
+#if defined(WEBRTC_USE_PIPEWIRE)
+#include "modules/desktop_capture/linux/shared_screencast_stream.h"
+#endif
+
#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
#include "modules/desktop_capture/mac/desktop_configuration_monitor.h"
#endif
@@ -149,13 +153,26 @@ class RTC_EXPORT DesktopCaptureOptions {
#if defined(WEBRTC_USE_PIPEWIRE)
bool allow_pipewire() const { return allow_pipewire_; }
void set_allow_pipewire(bool allow) { allow_pipewire_ = allow; }
+
+ const rtc::scoped_refptr<SharedScreenCastStream>& screencast_stream() const {
+ return screencast_stream_;
+ }
+ void set_screencast_stream(
+ rtc::scoped_refptr<SharedScreenCastStream> stream) {
+ screencast_stream_ = stream;
+ }
#endif
private:
#if defined(WEBRTC_USE_X11)
rtc::scoped_refptr<SharedXDisplay> x_display_;
#endif
-
+#if defined(WEBRTC_USE_PIPEWIRE)
+ // An instance of shared PipeWire ScreenCast stream we share between
+ // BaseCapturerPipeWire and MouseCursorMonitorPipeWire as cursor information
+ // is sent together with screen content.
+ rtc::scoped_refptr<SharedScreenCastStream> screencast_stream_;
+#endif
#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
rtc::scoped_refptr<DesktopConfigurationMonitor> configuration_monitor_;
bool allow_iosurface_ = false;
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc b/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
index 2fd3b1a..e4685fc 100644
--- a/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
@@ -10,937 +10,67 @@
#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
-#include <gio/gunixfdlist.h>
-#include <glib-object.h>
-#include <spa/param/format-utils.h>
-#include <spa/param/props.h>
-
-#include <sys/mman.h>
-#include <sys/ioctl.h>
-#include <sys/syscall.h>
-
-#include <cstring>
-#include <memory>
-#include <utility>
-
-#include "absl/memory/memory.h"
#include "modules/desktop_capture/desktop_capture_options.h"
#include "modules/desktop_capture/desktop_capturer.h"
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
-#if defined(WEBRTC_DLOPEN_PIPEWIRE)
-#include "modules/desktop_capture/linux/pipewire_stubs.h"
-
-using modules_desktop_capture_linux::InitializeStubs;
-using modules_desktop_capture_linux::kModulePipewire;
-using modules_desktop_capture_linux::StubPathMap;
-#endif // defined(WEBRTC_DLOPEN_PIPEWIRE)
-
namespace webrtc {
-const char kDesktopBusName[] = "org.freedesktop.portal.Desktop";
-const char kDesktopObjectPath[] = "/org/freedesktop/portal/desktop";
-const char kDesktopRequestObjectPath[] =
- "/org/freedesktop/portal/desktop/request";
-const char kSessionInterfaceName[] = "org.freedesktop.portal.Session";
-const char kRequestInterfaceName[] = "org.freedesktop.portal.Request";
-const char kScreenCastInterfaceName[] = "org.freedesktop.portal.ScreenCast";
-
-const int kBytesPerPixel = 4;
-
-#if defined(WEBRTC_DLOPEN_PIPEWIRE)
-const char kPipeWireLib[] = "libpipewire-0.2.so.1";
-#endif
-
-// static
-struct dma_buf_sync {
- uint64_t flags;
-};
-#define DMA_BUF_SYNC_READ (1 << 0)
-#define DMA_BUF_SYNC_START (0 << 2)
-#define DMA_BUF_SYNC_END (1 << 2)
-#define DMA_BUF_BASE 'b'
-#define DMA_BUF_IOCTL_SYNC _IOW(DMA_BUF_BASE, 0, struct dma_buf_sync)
-
-static void SyncDmaBuf(int fd, uint64_t start_or_end) {
- struct dma_buf_sync sync = { 0 };
-
- sync.flags = start_or_end | DMA_BUF_SYNC_READ;
-
- while(true) {
- int ret;
- ret = ioctl (fd, DMA_BUF_IOCTL_SYNC, &sync);
- if (ret == -1 && errno == EINTR) {
- continue;
- } else if (ret == -1) {
- RTC_LOG(LS_ERROR) << "Failed to synchronize DMA buffer: " << g_strerror(errno);
- break;
- } else {
- break;
- }
- }
-}
-
-// static
-void BaseCapturerPipeWire::OnCoreError(void *data,
- uint32_t id,
- int seq,
- int res,
- const char *message) {
- RTC_LOG(LS_ERROR) << "core error: " << message;
-}
-
-// static
-void BaseCapturerPipeWire::OnStreamStateChanged(void* data,
- pw_stream_state old_state,
- pw_stream_state state,
- const char* error_message) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
- RTC_DCHECK(that);
-
- switch (state) {
- case PW_STREAM_STATE_ERROR:
- RTC_LOG(LS_ERROR) << "PipeWire stream state error: " << error_message;
- break;
- case PW_STREAM_STATE_PAUSED:
- case PW_STREAM_STATE_STREAMING:
- case PW_STREAM_STATE_UNCONNECTED:
- case PW_STREAM_STATE_CONNECTING:
- break;
- }
+BaseCapturerPipeWire::BaseCapturerPipeWire(const DesktopCaptureOptions& options)
+ : options_(options) {
+ screencast_portal_ = std::make_unique<ScreenCastPortal>(
+ ScreenCastPortal::CaptureSourceType::kAnyScreenContent, this);
}
-// static
-void BaseCapturerPipeWire::OnStreamParamChanged(void *data, uint32_t id,
- const struct spa_pod *format) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
- RTC_DCHECK(that);
-
- RTC_LOG(LS_INFO) << "PipeWire stream param changed.";
-
- if (!format || id != SPA_PARAM_Format) {
- return;
- }
-
- spa_format_video_raw_parse(format, &that->spa_video_format_);
-
- auto width = that->spa_video_format_.size.width;
- auto height = that->spa_video_format_.size.height;
- // In order to be able to build in the non unified environment kBytesPerPixel
- // must be fully qualified, see Bug 1725145
- auto stride = SPA_ROUND_UP_N(width * BasicDesktopFrame::kBytesPerPixel, 4);
- auto size = height * stride;
-
- that->desktop_size_ = DesktopSize(width, height);
-
- uint8_t buffer[1024] = {};
- auto builder = spa_pod_builder{buffer, sizeof(buffer)};
-
- // Setup buffers and meta header for new format.
- const struct spa_pod* params[3];
- params[0] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
- SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers,
- SPA_PARAM_BUFFERS_dataType, SPA_POD_CHOICE_FLAGS_Int((1<<SPA_DATA_MemPtr) |
- (1<<SPA_DATA_MemFd)),
- SPA_PARAM_BUFFERS_size, SPA_POD_Int(size),
- SPA_PARAM_BUFFERS_stride, SPA_POD_Int(stride),
- SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(8, 1, 32)));
- params[1] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
- SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
- SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header),
- SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header))));
- params[2] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
- SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta,
- SPA_PARAM_META_type, SPA_POD_Id (SPA_META_VideoCrop),
- SPA_PARAM_META_size, SPA_POD_Int (sizeof(struct spa_meta_region))));
- pw_stream_update_params(that->pw_stream_, params, 3);
-}
-
-// static
-void BaseCapturerPipeWire::OnStreamProcess(void* data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(data);
- RTC_DCHECK(that);
-
- struct pw_buffer *next_buffer;
- struct pw_buffer *buffer = nullptr;
+BaseCapturerPipeWire::~BaseCapturerPipeWire() {}
- next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
- while (next_buffer) {
- buffer = next_buffer;
- next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
-
- if (next_buffer) {
- pw_stream_queue_buffer (that->pw_stream_, buffer);
- }
- }
-
- if (!buffer) {
- return;
+void BaseCapturerPipeWire::OnScreenCastRequestResult(
+ ScreenCastPortal::RequestResponse result,
+ uint32_t stream_node_id,
+ int fd) {
+ if (result != ScreenCastPortal::RequestResponse::kSuccess ||
+ !options_.screencast_stream()->StartScreenCastStream(stream_node_id,
+ fd)) {
+ capturer_failed_ = true;
+ RTC_LOG(LS_ERROR) << "ScreenCastPortal failed: "
+ << static_cast<uint>(result);
}
-
- that->HandleBuffer(buffer);
-
- pw_stream_queue_buffer(that->pw_stream_, buffer);
}
-BaseCapturerPipeWire::BaseCapturerPipeWire(CaptureSourceType source_type)
- : capture_source_type_(source_type) {}
-
-BaseCapturerPipeWire::~BaseCapturerPipeWire() {
- if (pw_main_loop_) {
- pw_thread_loop_stop(pw_main_loop_);
- }
-
- if (pw_stream_) {
- pw_stream_destroy(pw_stream_);
- }
-
- if (pw_core_) {
- pw_core_disconnect(pw_core_);
- }
-
- if (pw_context_) {
- pw_context_destroy(pw_context_);
- }
-
- if (pw_main_loop_) {
- pw_thread_loop_destroy(pw_main_loop_);
+void BaseCapturerPipeWire::OnScreenCastSessionClosed() {
+ if (!capturer_failed_) {
+ options_.screencast_stream()->StopScreenCastStream();
}
-
- if (start_request_signal_id_) {
- g_dbus_connection_signal_unsubscribe(connection_, start_request_signal_id_);
- }
- if (sources_request_signal_id_) {
- g_dbus_connection_signal_unsubscribe(connection_,
- sources_request_signal_id_);
- }
- if (session_request_signal_id_) {
- g_dbus_connection_signal_unsubscribe(connection_,
- session_request_signal_id_);
- }
-
- if (session_handle_) {
- GDBusMessage* message = g_dbus_message_new_method_call(
- kDesktopBusName, session_handle_, kSessionInterfaceName, "Close");
- if (message) {
- GError* error = nullptr;
- g_dbus_connection_send_message(connection_, message,
- G_DBUS_SEND_MESSAGE_FLAGS_NONE,
- /*out_serial=*/nullptr, &error);
- if (error) {
- RTC_LOG(LS_ERROR) << "Failed to close the session: " << error->message;
- g_error_free(error);
- }
- g_object_unref(message);
- }
- }
-
- g_free(start_handle_);
- g_free(sources_handle_);
- g_free(session_handle_);
- g_free(portal_handle_);
-
- if (cancellable_) {
- g_cancellable_cancel(cancellable_);
- g_object_unref(cancellable_);
- cancellable_ = nullptr;
- }
-
- if (proxy_) {
- g_object_unref(proxy_);
- proxy_ = nullptr;
- }
-
- if (pw_fd_ != -1) {
- close(pw_fd_);
- }
-}
-
-void BaseCapturerPipeWire::InitPortal() {
- cancellable_ = g_cancellable_new();
- g_dbus_proxy_new_for_bus(
- G_BUS_TYPE_SESSION, G_DBUS_PROXY_FLAGS_NONE, /*info=*/nullptr,
- kDesktopBusName, kDesktopObjectPath, kScreenCastInterfaceName,
- cancellable_,
- reinterpret_cast<GAsyncReadyCallback>(OnProxyRequested), this);
-}
-
-void BaseCapturerPipeWire::InitPipeWire() {
-#if defined(WEBRTC_DLOPEN_PIPEWIRE)
- StubPathMap paths;
-
- // Check if the PipeWire library is available.
- paths[kModulePipewire].push_back(kPipeWireLib);
- if (!InitializeStubs(paths)) {
- RTC_LOG(LS_ERROR) << "Failed to load the PipeWire library and symbols.";
- portal_init_failed_ = true;
- return;
- }
-#endif // defined(WEBRTC_DLOPEN_PIPEWIRE)
-
- pw_init(/*argc=*/nullptr, /*argc=*/nullptr);
-
- pw_main_loop_ = pw_thread_loop_new("pipewire-main-loop", nullptr);
- pw_context_ = pw_context_new(pw_thread_loop_get_loop(pw_main_loop_), nullptr, 0);
- if (!pw_context_) {
- RTC_LOG(LS_ERROR) << "Failed to create PipeWire context";
- return;
- }
-
- pw_core_ = pw_context_connect_fd(pw_context_, pw_fd_, nullptr, 0);
- if (!pw_core_) {
- RTC_LOG(LS_ERROR) << "Failed to connect PipeWire context";
- return;
- }
-
- // Initialize event handlers, remote end and stream-related.
- pw_core_events_.version = PW_VERSION_CORE_EVENTS;
- pw_core_events_.error = &OnCoreError;
-
- pw_stream_events_.version = PW_VERSION_STREAM_EVENTS;
- pw_stream_events_.state_changed = &OnStreamStateChanged;
- pw_stream_events_.param_changed = &OnStreamParamChanged;
- pw_stream_events_.process = &OnStreamProcess;
-
- pw_core_add_listener(pw_core_, &spa_core_listener_, &pw_core_events_, this);
-
- pw_stream_ = CreateReceivingStream();
- if (!pw_stream_) {
- RTC_LOG(LS_ERROR) << "Failed to create PipeWire stream";
- return;
- }
-
- if (pw_thread_loop_start(pw_main_loop_) < 0) {
- RTC_LOG(LS_ERROR) << "Failed to start main PipeWire loop";
- portal_init_failed_ = true;
- }
-
- RTC_LOG(LS_INFO) << "PipeWire remote opened.";
-}
-
-pw_stream* BaseCapturerPipeWire::CreateReceivingStream() {
- spa_rectangle pwMinScreenBounds = spa_rectangle{1, 1};
- spa_rectangle pwMaxScreenBounds = spa_rectangle{UINT32_MAX, UINT32_MAX};
-
- auto stream = pw_stream_new(pw_core_, "webrtc-pipewire-stream", nullptr);
-
- if (!stream) {
- RTC_LOG(LS_ERROR) << "Could not create receiving stream.";
- return nullptr;
- }
-
- uint8_t buffer[1024] = {};
- const spa_pod* params[2];
- spa_pod_builder builder = SPA_POD_BUILDER_INIT(buffer, sizeof (buffer));
-
- params[0] = reinterpret_cast<spa_pod *>(spa_pod_builder_add_object(&builder,
- SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat,
- SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_video),
- SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw),
- SPA_FORMAT_VIDEO_format, SPA_POD_CHOICE_ENUM_Id(5, SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_RGBx, SPA_VIDEO_FORMAT_RGBA,
- SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_BGRA),
- SPA_FORMAT_VIDEO_size, SPA_POD_CHOICE_RANGE_Rectangle(&pwMinScreenBounds,
- &pwMinScreenBounds,
- &pwMaxScreenBounds),
- 0));
- pw_stream_add_listener(stream, &spa_stream_listener_, &pw_stream_events_, this);
-
- if (pw_stream_connect(stream, PW_DIRECTION_INPUT, pw_stream_node_id_,
- PW_STREAM_FLAG_AUTOCONNECT, params, 1) != 0) {
- RTC_LOG(LS_ERROR) << "Could not connect receiving stream.";
- portal_init_failed_ = true;
- }
-
- return stream;
-}
-
-static void SpaBufferUnmap(unsigned char *map, int map_size, bool IsDMABuf, int fd) {
- if (map) {
- if (IsDMABuf) {
- SyncDmaBuf(fd, DMA_BUF_SYNC_END);
- }
- munmap(map, map_size);
- }
-}
-
-void BaseCapturerPipeWire::HandleBuffer(pw_buffer* buffer) {
- spa_buffer* spaBuffer = buffer->buffer;
- uint8_t *map = nullptr;
- uint8_t* src = nullptr;
-
- if (spaBuffer->datas[0].chunk->size == 0) {
- RTC_LOG(LS_ERROR) << "Failed to get video stream: Zero size.";
- return;
- }
-
- switch (spaBuffer->datas[0].type) {
- case SPA_DATA_MemFd:
- case SPA_DATA_DmaBuf:
- map = static_cast<uint8_t*>(mmap(
- nullptr, spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
- PROT_READ, MAP_PRIVATE, spaBuffer->datas[0].fd, 0));
- if (map == MAP_FAILED) {
- RTC_LOG(LS_ERROR) << "Failed to mmap memory: " << std::strerror(errno);
- return;
- }
- if (spaBuffer->datas[0].type == SPA_DATA_DmaBuf) {
- SyncDmaBuf(spaBuffer->datas[0].fd, DMA_BUF_SYNC_START);
- }
- src = SPA_MEMBER(map, spaBuffer->datas[0].mapoffset, uint8_t);
- break;
- case SPA_DATA_MemPtr:
- map = nullptr;
- src = static_cast<uint8_t*>(spaBuffer->datas[0].data);
- break;
- default:
- return;
- }
-
- if (!src) {
- RTC_LOG(LS_ERROR) << "Failed to get video stream: Wrong data after mmap()";
- SpaBufferUnmap(map,
- spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
- spaBuffer->datas[0].type == SPA_DATA_DmaBuf, spaBuffer->datas[0].fd);
- return;
- }
-
- struct spa_meta_region* video_metadata =
- static_cast<struct spa_meta_region*>(
- spa_buffer_find_meta_data(spaBuffer, SPA_META_VideoCrop, sizeof(*video_metadata)));
-
- // Video size from metada is bigger than an actual video stream size.
- // The metadata are wrong or we should up-scale te video...in both cases
- // just quit now.
- if (video_metadata &&
- (video_metadata->region.size.width > (uint32_t)desktop_size_.width() ||
- video_metadata->region.size.height > (uint32_t)desktop_size_.height())) {
- RTC_LOG(LS_ERROR) << "Stream metadata sizes are wrong!";
- SpaBufferUnmap(map,
- spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
- spaBuffer->datas[0].type == SPA_DATA_DmaBuf, spaBuffer->datas[0].fd);
- return;
- }
-
- // Use video metada when video size from metadata is set and smaller than
- // video stream size, so we need to adjust it.
- video_metadata_use_ = (video_metadata &&
- video_metadata->region.size.width != 0 &&
- video_metadata->region.size.height != 0 &&
- (video_metadata->region.size.width < (uint32_t)desktop_size_.width() ||
- video_metadata->region.size.height < (uint32_t)desktop_size_.height()));
-
- DesktopSize video_size_prev = video_size_;
- if (video_metadata_use_) {
- video_size_ = DesktopSize(video_metadata->region.size.width,
- video_metadata->region.size.height);
- } else {
- video_size_ = desktop_size_;
- }
-
- webrtc::MutexLock lock(&current_frame_lock_);
- if (!current_frame_ || !video_size_.equals(video_size_prev)) {
- current_frame_ =
- std::make_unique<uint8_t[]>
- (video_size_.width() * video_size_.height() * BasicDesktopFrame::kBytesPerPixel);
- }
-
- const int32_t dstStride = video_size_.width() * BasicDesktopFrame::kBytesPerPixel;
- const int32_t srcStride = spaBuffer->datas[0].chunk->stride;
-
- // Adjust source content based on metadata video position
- if (video_metadata_use_ &&
- (video_metadata->region.position.y + video_size_.height() <= desktop_size_.height())) {
- src += srcStride * video_metadata->region.position.y;
- }
- const int xOffset =
- video_metadata_use_ &&
- (video_metadata->region.position.x + video_size_.width() <= desktop_size_.width())
- ? video_metadata->region.position.x * BasicDesktopFrame::kBytesPerPixel
- : 0;
-
- uint8_t* dst = current_frame_.get();
- for (int i = 0; i < video_size_.height(); ++i) {
- // Adjust source content based on crop video position if needed
- src += xOffset;
- std::memcpy(dst, src, dstStride);
- // If both sides decided to go with the RGBx format we need to convert it to
- // BGRx to match color format expected by WebRTC.
- if (spa_video_format_.format == SPA_VIDEO_FORMAT_RGBx ||
- spa_video_format_.format == SPA_VIDEO_FORMAT_RGBA) {
- ConvertRGBxToBGRx(dst, dstStride);
- }
- src += srcStride - xOffset;
- dst += dstStride;
- }
-
- SpaBufferUnmap(map,
- spaBuffer->datas[0].maxsize + spaBuffer->datas[0].mapoffset,
- spaBuffer->datas[0].type == SPA_DATA_DmaBuf, spaBuffer->datas[0].fd);
-}
-
-void BaseCapturerPipeWire::ConvertRGBxToBGRx(uint8_t* frame, uint32_t size) {
- // Change color format for KDE KWin which uses RGBx and not BGRx
- for (uint32_t i = 0; i < size; i += 4) {
- uint8_t tempR = frame[i];
- uint8_t tempB = frame[i + 2];
- frame[i] = tempB;
- frame[i + 2] = tempR;
- }
-}
-
-guint BaseCapturerPipeWire::SetupRequestResponseSignal(
- const gchar* object_path,
- GDBusSignalCallback callback) {
- return g_dbus_connection_signal_subscribe(
- connection_, kDesktopBusName, kRequestInterfaceName, "Response",
- object_path, /*arg0=*/nullptr, G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
- callback, this, /*user_data_free_func=*/nullptr);
-}
-
-// static
-void BaseCapturerPipeWire::OnProxyRequested(GObject* /*object*/,
- GAsyncResult* result,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- GError* error = nullptr;
- GDBusProxy *proxy = g_dbus_proxy_new_finish(result, &error);
- if (!proxy) {
- if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- return;
- RTC_LOG(LS_ERROR) << "Failed to create a proxy for the screen cast portal: "
- << error->message;
- g_error_free(error);
- that->portal_init_failed_ = true;
- return;
- }
- that->proxy_ = proxy;
- that->connection_ = g_dbus_proxy_get_connection(that->proxy_);
-
- RTC_LOG(LS_INFO) << "Created proxy for the screen cast portal.";
- that->SessionRequest();
-}
-
-// static
-gchar* BaseCapturerPipeWire::PrepareSignalHandle(GDBusConnection* connection,
- const gchar* token) {
- gchar* sender = g_strdup(g_dbus_connection_get_unique_name(connection) + 1);
- for (int i = 0; sender[i]; i++) {
- if (sender[i] == '.') {
- sender[i] = '_';
- }
- }
-
- gchar* handle = g_strconcat(kDesktopRequestObjectPath, "/", sender, "/",
- token, /*end of varargs*/ nullptr);
- g_free(sender);
-
- return handle;
-}
-
-void BaseCapturerPipeWire::SessionRequest() {
- GVariantBuilder builder;
- gchar* variant_string;
-
- g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
- variant_string =
- g_strdup_printf("webrtc_session%d", g_random_int_range(0, G_MAXINT));
- g_variant_builder_add(&builder, "{sv}", "session_handle_token",
- g_variant_new_string(variant_string));
- g_free(variant_string);
- variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
- g_variant_builder_add(&builder, "{sv}", "handle_token",
- g_variant_new_string(variant_string));
-
- portal_handle_ = PrepareSignalHandle(connection_, variant_string);
- session_request_signal_id_ = SetupRequestResponseSignal(
- portal_handle_, OnSessionRequestResponseSignal);
- g_free(variant_string);
-
- RTC_LOG(LS_INFO) << "Screen cast session requested.";
- g_dbus_proxy_call(
- proxy_, "CreateSession", g_variant_new("(a{sv})", &builder),
- G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
- reinterpret_cast<GAsyncReadyCallback>(OnSessionRequested), this);
-}
-
-// static
-void BaseCapturerPipeWire::OnSessionRequested(GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- GError* error = nullptr;
- GVariant* variant = g_dbus_proxy_call_finish(proxy, result, &error);
- if (!variant) {
- if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- return;
- RTC_LOG(LS_ERROR) << "Failed to create a screen cast session: "
- << error->message;
- g_error_free(error);
- that->portal_init_failed_ = true;
- return;
- }
- RTC_LOG(LS_INFO) << "Initializing the screen cast session.";
-
- gchar* handle = nullptr;
- g_variant_get_child(variant, 0, "o", &handle);
- g_variant_unref(variant);
- if (!handle) {
- RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
- if (that->session_request_signal_id_) {
- g_dbus_connection_signal_unsubscribe(that->connection_,
- that->session_request_signal_id_);
- that->session_request_signal_id_ = 0;
- }
- that->portal_init_failed_ = true;
- return;
- }
-
- g_free(handle);
-
- RTC_LOG(LS_INFO) << "Subscribing to the screen cast session.";
-}
-
-// static
-void BaseCapturerPipeWire::OnSessionRequestResponseSignal(
- GDBusConnection* connection,
- const gchar* sender_name,
- const gchar* object_path,
- const gchar* interface_name,
- const gchar* signal_name,
- GVariant* parameters,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- RTC_LOG(LS_INFO)
- << "Received response for the screen cast session subscription.";
-
- guint32 portal_response;
- GVariant* response_data;
- g_variant_get(parameters, "(u@a{sv})", &portal_response, &response_data);
-
- GVariant* session_handle =
- g_variant_lookup_value(response_data, "session_handle", NULL);
- that->session_handle_ = g_variant_dup_string(session_handle, NULL);
-
- g_variant_unref(session_handle);
- g_variant_unref(response_data);
-
- if (!that->session_handle_ || portal_response) {
- RTC_LOG(LS_ERROR)
- << "Failed to request the screen cast session subscription.";
- that->portal_init_failed_ = true;
- return;
- }
-
- that->SourcesRequest();
-}
-
-void BaseCapturerPipeWire::SourcesRequest() {
- GVariantBuilder builder;
- gchar* variant_string;
-
- g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
- // We want to record monitor content.
- g_variant_builder_add(&builder, "{sv}", "types",
- g_variant_new_uint32(capture_source_type_));
- // We don't want to allow selection of multiple sources.
- g_variant_builder_add(&builder, "{sv}", "multiple",
- g_variant_new_boolean(false));
- variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
- g_variant_builder_add(&builder, "{sv}", "handle_token",
- g_variant_new_string(variant_string));
-
- sources_handle_ = PrepareSignalHandle(connection_, variant_string);
- sources_request_signal_id_ = SetupRequestResponseSignal(
- sources_handle_, OnSourcesRequestResponseSignal);
- g_free(variant_string);
-
- RTC_LOG(LS_INFO) << "Requesting sources from the screen cast session.";
- g_dbus_proxy_call(
- proxy_, "SelectSources",
- g_variant_new("(oa{sv})", session_handle_, &builder),
- G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
- reinterpret_cast<GAsyncReadyCallback>(OnSourcesRequested), this);
-}
-
-// static
-void BaseCapturerPipeWire::OnSourcesRequested(GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- GError* error = nullptr;
- GVariant* variant = g_dbus_proxy_call_finish(proxy, result, &error);
- if (!variant) {
- if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- return;
- RTC_LOG(LS_ERROR) << "Failed to request the sources: " << error->message;
- g_error_free(error);
- that->portal_init_failed_ = true;
- return;
- }
-
- RTC_LOG(LS_INFO) << "Sources requested from the screen cast session.";
-
- gchar* handle = nullptr;
- g_variant_get_child(variant, 0, "o", &handle);
- g_variant_unref(variant);
- if (!handle) {
- RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
- if (that->sources_request_signal_id_) {
- g_dbus_connection_signal_unsubscribe(that->connection_,
- that->sources_request_signal_id_);
- that->sources_request_signal_id_ = 0;
- }
- that->portal_init_failed_ = true;
- return;
- }
-
- g_free(handle);
-
- RTC_LOG(LS_INFO) << "Subscribed to sources signal.";
-}
-
-// static
-void BaseCapturerPipeWire::OnSourcesRequestResponseSignal(
- GDBusConnection* connection,
- const gchar* sender_name,
- const gchar* object_path,
- const gchar* interface_name,
- const gchar* signal_name,
- GVariant* parameters,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- RTC_LOG(LS_INFO) << "Received sources signal from session.";
-
- guint32 portal_response;
- g_variant_get(parameters, "(u@a{sv})", &portal_response, nullptr);
- if (portal_response) {
- RTC_LOG(LS_ERROR)
- << "Failed to select sources for the screen cast session.";
- that->portal_init_failed_ = true;
- return;
- }
-
- that->StartRequest();
-}
-
-void BaseCapturerPipeWire::StartRequest() {
- GVariantBuilder builder;
- gchar* variant_string;
-
- g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
- variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
- g_variant_builder_add(&builder, "{sv}", "handle_token",
- g_variant_new_string(variant_string));
-
- start_handle_ = PrepareSignalHandle(connection_, variant_string);
- start_request_signal_id_ =
- SetupRequestResponseSignal(start_handle_, OnStartRequestResponseSignal);
- g_free(variant_string);
-
- // "Identifier for the application window", this is Wayland, so not "x11:...".
- const gchar parent_window[] = "";
-
- RTC_LOG(LS_INFO) << "Starting the screen cast session.";
- g_dbus_proxy_call(
- proxy_, "Start",
- g_variant_new("(osa{sv})", session_handle_, parent_window, &builder),
- G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
- reinterpret_cast<GAsyncReadyCallback>(OnStartRequested), this);
-}
-
-// static
-void BaseCapturerPipeWire::OnStartRequested(GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- GError* error = nullptr;
- GVariant* variant = g_dbus_proxy_call_finish(proxy, result, &error);
- if (!variant) {
- if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- return;
- RTC_LOG(LS_ERROR) << "Failed to start the screen cast session: "
- << error->message;
- g_error_free(error);
- that->portal_init_failed_ = true;
- return;
- }
-
- RTC_LOG(LS_INFO) << "Initializing the start of the screen cast session.";
-
- gchar* handle = nullptr;
- g_variant_get_child(variant, 0, "o", &handle);
- g_variant_unref(variant);
- if (!handle) {
- RTC_LOG(LS_ERROR)
- << "Failed to initialize the start of the screen cast session.";
- if (that->start_request_signal_id_) {
- g_dbus_connection_signal_unsubscribe(that->connection_,
- that->start_request_signal_id_);
- that->start_request_signal_id_ = 0;
- }
- that->portal_init_failed_ = true;
- return;
- }
-
- g_free(handle);
-
- RTC_LOG(LS_INFO) << "Subscribed to the start signal.";
-}
-
-// static
-void BaseCapturerPipeWire::OnStartRequestResponseSignal(
- GDBusConnection* connection,
- const gchar* sender_name,
- const gchar* object_path,
- const gchar* interface_name,
- const gchar* signal_name,
- GVariant* parameters,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- RTC_LOG(LS_INFO) << "Start signal received.";
- guint32 portal_response;
- GVariant* response_data;
- GVariantIter* iter = nullptr;
- g_variant_get(parameters, "(u@a{sv})", &portal_response, &response_data);
- if (portal_response || !response_data) {
- RTC_LOG(LS_ERROR) << "Failed to start the screen cast session.";
- that->portal_init_failed_ = true;
- return;
- }
-
- // Array of PipeWire streams. See
- // https://github.com/flatpak/xdg-desktop-portal/blob/master/data/org.freedesktop.portal.ScreenCast.xml
- // documentation for <method name="Start">.
- if (g_variant_lookup(response_data, "streams", "a(ua{sv})", &iter)) {
- GVariant* variant;
-
- while (g_variant_iter_next(iter, "@(ua{sv})", &variant)) {
- guint32 stream_id;
- GVariant* options;
-
- g_variant_get(variant, "(u@a{sv})", &stream_id, &options);
- RTC_DCHECK(options != nullptr);
-
- that->pw_stream_node_id_ = stream_id;
- g_variant_unref(options);
- g_variant_unref(variant);
- }
- }
- g_variant_iter_free(iter);
- g_variant_unref(response_data);
-
- that->OpenPipeWireRemote();
-}
-
-void BaseCapturerPipeWire::OpenPipeWireRemote() {
- GVariantBuilder builder;
- g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
-
- RTC_LOG(LS_INFO) << "Opening the PipeWire remote.";
-
- g_dbus_proxy_call_with_unix_fd_list(
- proxy_, "OpenPipeWireRemote",
- g_variant_new("(oa{sv})", session_handle_, &builder),
- G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, /*fd_list=*/nullptr,
- cancellable_,
- reinterpret_cast<GAsyncReadyCallback>(OnOpenPipeWireRemoteRequested),
- this);
-}
-
-// static
-void BaseCapturerPipeWire::OnOpenPipeWireRemoteRequested(
- GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data) {
- BaseCapturerPipeWire* that = static_cast<BaseCapturerPipeWire*>(user_data);
- RTC_DCHECK(that);
-
- GError* error = nullptr;
- GUnixFDList* outlist = nullptr;
- GVariant* variant = g_dbus_proxy_call_with_unix_fd_list_finish(
- proxy, &outlist, result, &error);
- if (!variant) {
- if (g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- return;
- RTC_LOG(LS_ERROR) << "Failed to open the PipeWire remote: "
- << error->message;
- g_error_free(error);
- that->portal_init_failed_ = true;
- return;
- }
-
- gint32 index;
- g_variant_get(variant, "(h)", &index);
-
- if ((that->pw_fd_ = g_unix_fd_list_get(outlist, index, &error)) == -1) {
- RTC_LOG(LS_ERROR) << "Failed to get file descriptor from the list: "
- << error->message;
- g_error_free(error);
- g_variant_unref(variant);
- that->portal_init_failed_ = true;
- return;
- }
-
- g_variant_unref(variant);
- g_object_unref(outlist);
-
- that->InitPipeWire();
}
void BaseCapturerPipeWire::Start(Callback* callback) {
RTC_DCHECK(!callback_);
RTC_DCHECK(callback);
- InitPortal();
-
callback_ = callback;
+
+ screencast_portal_->Start();
}
void BaseCapturerPipeWire::CaptureFrame() {
- if (portal_init_failed_) {
+ if (capturer_failed_) {
callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
return;
}
- webrtc::MutexLock lock(&current_frame_lock_);
- if (!current_frame_) {
- callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
- return;
- }
-
- DesktopSize frame_size = desktop_size_;
- if (video_metadata_use_) {
- frame_size = video_size_;
- }
+ std::unique_ptr<DesktopFrame> frame =
+ options_.screencast_stream()->CaptureFrame();
- std::unique_ptr<DesktopFrame> result(new BasicDesktopFrame(frame_size));
- result->CopyPixelsFrom(
- current_frame_.get(), (frame_size.width() * BasicDesktopFrame::kBytesPerPixel),
- DesktopRect::MakeWH(frame_size.width(), frame_size.height()));
- if (!result) {
+ if (!frame || !frame->data()) {
callback_->OnCaptureResult(Result::ERROR_TEMPORARY, nullptr);
return;
}
- // TODO(julien.isorce): http://crbug.com/945468. Set the icc profile on the
- // frame, see ScreenCapturerX11::CaptureFrame.
+ // TODO(julien.isorce): http://crbug.com/945468. Set the icc profile on
+ // the frame, see ScreenCapturerX11::CaptureFrame.
- callback_->OnCaptureResult(Result::SUCCESS, std::move(result));
+ callback_->OnCaptureResult(Result::SUCCESS, std::move(frame));
}
// Keep in sync with defines at browser/actors/WebRTCParent.jsm
@@ -953,31 +83,13 @@ void BaseCapturerPipeWire::CaptureFrame() {
#define PIPEWIRE_NAME "####_PIPEWIRE_PORTAL_####"
bool BaseCapturerPipeWire::GetSourceList(SourceList* sources) {
+ RTC_DCHECK(sources->size() == 0);
sources->push_back({PIPEWIRE_ID, 0, PIPEWIRE_NAME});
return true;
}
bool BaseCapturerPipeWire::SelectSource(SourceId id) {
- // Screen selection is handled by the xdg-desktop-portal.
return id == PIPEWIRE_ID;
}
-// static
-std::unique_ptr<DesktopCapturer>
-BaseCapturerPipeWire::CreateRawScreenCapturer(
- const DesktopCaptureOptions& options) {
- std::unique_ptr<BaseCapturerPipeWire> capturer =
- std::make_unique<BaseCapturerPipeWire>(BaseCapturerPipeWire::CaptureSourceType::kAny);
- return std::move(capturer);}
-
-// static
-std::unique_ptr<DesktopCapturer>
-BaseCapturerPipeWire::CreateRawWindowCapturer(
- const DesktopCaptureOptions& options) {
-
- std::unique_ptr<BaseCapturerPipeWire> capturer =
- std::make_unique<BaseCapturerPipeWire>(BaseCapturerPipeWire::CaptureSourceType::kAny);
- return std::move(capturer);
-}
-
} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.h b/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
index af8e20c..5db09e0 100644
--- a/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/base_capturer_pipewire.h
@@ -11,160 +11,39 @@
#ifndef MODULES_DESKTOP_CAPTURE_LINUX_BASE_CAPTURER_PIPEWIRE_H_
#define MODULES_DESKTOP_CAPTURE_LINUX_BASE_CAPTURER_PIPEWIRE_H_
-#include <gio/gio.h>
-#define typeof __typeof__
-#include <pipewire/pipewire.h>
-#include <spa/param/video/format-utils.h>
-
#include "modules/desktop_capture/desktop_capture_options.h"
#include "modules/desktop_capture/desktop_capturer.h"
-#include "rtc_base/synchronization/mutex.h"
+#include "modules/desktop_capture/linux/screencast_portal.h"
+#include "modules/desktop_capture/linux/shared_screencast_stream.h"
namespace webrtc {
-class BaseCapturerPipeWire : public DesktopCapturer {
+class BaseCapturerPipeWire : public DesktopCapturer,
+ public ScreenCastPortal::PortalNotifier {
public:
- enum CaptureSourceType : uint32_t {
- kScreen = 0b01,
- kWindow = 0b10,
- kAny = 0b11
- };
-
- explicit BaseCapturerPipeWire(CaptureSourceType source_type);
+ BaseCapturerPipeWire(const DesktopCaptureOptions& options);
~BaseCapturerPipeWire() override;
+ BaseCapturerPipeWire(const BaseCapturerPipeWire&) = delete;
+ BaseCapturerPipeWire& operator=(const BaseCapturerPipeWire&) = delete;
+
// DesktopCapturer interface.
void Start(Callback* delegate) override;
void CaptureFrame() override;
bool GetSourceList(SourceList* sources) override;
bool SelectSource(SourceId id) override;
- static std::unique_ptr<DesktopCapturer> CreateRawScreenCapturer(
- const DesktopCaptureOptions& options);
-
- static std::unique_ptr<DesktopCapturer> CreateRawWindowCapturer(
- const DesktopCaptureOptions& options);
+ // ScreenCastPortal::PortalNotifier interface.
+ void OnScreenCastRequestResult(ScreenCastPortal::RequestResponse result,
+ uint32_t stream_node_id,
+ int fd) override;
+ void OnScreenCastSessionClosed() override;
private:
- // PipeWire types -->
- pw_context* pw_context_ = nullptr;
- pw_core* pw_core_ = nullptr;
- pw_stream* pw_stream_ = nullptr;
- pw_thread_loop* pw_main_loop_ = nullptr;
-
- spa_hook spa_core_listener_ = {};
- spa_hook spa_stream_listener_ = {};
-
- pw_core_events pw_core_events_ = {};
- pw_stream_events pw_stream_events_ = {};
-
- struct spa_video_info_raw spa_video_format_;
-
- guint32 pw_stream_node_id_ = 0;
- gint32 pw_fd_ = -1;
-
- CaptureSourceType capture_source_type_ =
- BaseCapturerPipeWire::CaptureSourceType::kAny;
-
- // <-- end of PipeWire types
-
- GDBusConnection* connection_ = nullptr;
- GDBusProxy* proxy_ = nullptr;
- GCancellable *cancellable_ = nullptr;
- gchar* portal_handle_ = nullptr;
- gchar* session_handle_ = nullptr;
- gchar* sources_handle_ = nullptr;
- gchar* start_handle_ = nullptr;
- guint session_request_signal_id_ = 0;
- guint sources_request_signal_id_ = 0;
- guint start_request_signal_id_ = 0;
-
- bool video_metadata_use_ = false;
- DesktopSize video_size_;
- DesktopSize desktop_size_ = {};
DesktopCaptureOptions options_ = {};
-
- webrtc::Mutex current_frame_lock_;
- std::unique_ptr<uint8_t[]> current_frame_;
Callback* callback_ = nullptr;
-
- bool portal_init_failed_ = false;
-
- void InitPortal();
- void InitPipeWire();
-
- pw_stream* CreateReceivingStream();
- void HandleBuffer(pw_buffer* buffer);
-
- void ConvertRGBxToBGRx(uint8_t* frame, uint32_t size);
-
- static void OnCoreError(void *data,
- uint32_t id,
- int seq,
- int res,
- const char *message);
- static void OnStreamParamChanged(void *data,
- uint32_t id,
- const struct spa_pod *format);
- static void OnStreamStateChanged(void* data,
- pw_stream_state old_state,
- pw_stream_state state,
- const char* error_message);
- static void OnStreamProcess(void* data);
- static void OnNewBuffer(void* data, uint32_t id);
-
- guint SetupRequestResponseSignal(const gchar* object_path,
- GDBusSignalCallback callback);
-
- static void OnProxyRequested(GObject* object,
- GAsyncResult* result,
- gpointer user_data);
-
- static gchar* PrepareSignalHandle(GDBusConnection* connection,
- const gchar* token);
-
- void SessionRequest();
- static void OnSessionRequested(GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data);
- static void OnSessionRequestResponseSignal(GDBusConnection* connection,
- const gchar* sender_name,
- const gchar* object_path,
- const gchar* interface_name,
- const gchar* signal_name,
- GVariant* parameters,
- gpointer user_data);
-
- void SourcesRequest();
- static void OnSourcesRequested(GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data);
- static void OnSourcesRequestResponseSignal(GDBusConnection* connection,
- const gchar* sender_name,
- const gchar* object_path,
- const gchar* interface_name,
- const gchar* signal_name,
- GVariant* parameters,
- gpointer user_data);
-
- void StartRequest();
- static void OnStartRequested(GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data);
- static void OnStartRequestResponseSignal(GDBusConnection* connection,
- const gchar* sender_name,
- const gchar* object_path,
- const gchar* interface_name,
- const gchar* signal_name,
- GVariant* parameters,
- gpointer user_data);
-
- void OpenPipeWireRemote();
- static void OnOpenPipeWireRemoteRequested(GDBusProxy *proxy,
- GAsyncResult* result,
- gpointer user_data);
-
- RTC_DISALLOW_COPY_AND_ASSIGN(BaseCapturerPipeWire);
+ bool capturer_failed_ = false;
+ std::unique_ptr<ScreenCastPortal> screencast_portal_;
};
} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/drm.sigs b/third_party/libwebrtc/modules/desktop_capture/linux/drm.sigs
new file mode 100644
index 0000000..226979f
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/drm.sigs
@@ -0,0 +1,11 @@
+// Copyright 2021 The WebRTC project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//------------------------------------------------
+// Functions from DRM used in capturer code.
+//--------
+
+// xf86drm.h
+int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices);
+void drmFreeDevices(drmDevicePtr devices[], int count);
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.cc b/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.cc
new file mode 100644
index 0000000..de63c2a
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.cc
@@ -0,0 +1,695 @@
+/*
+ * Copyright 2021 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/desktop_capture/linux/egl_dmabuf.h"
+
+#include <asm/ioctl.h>
+#include <dlfcn.h>
+#include <fcntl.h>
+#include <drm/drm_fourcc.h>
+#include <linux/types.h>
+#include <spa/param/video/format-utils.h>
+#include <unistd.h>
+#include <drm/xf86drm.h>
+
+#include "absl/memory/memory.h"
+#include "absl/types/optional.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/sanitizer.h"
+#include "rtc_base/string_encode.h"
+
+namespace webrtc {
+
+// EGL
+typedef EGLBoolean (*eglBindAPI_func)(EGLenum api);
+typedef EGLContext (*eglCreateContext_func)(EGLDisplay dpy,
+ EGLConfig config,
+ EGLContext share_context,
+ const EGLint* attrib_list);
+typedef EGLBoolean (*eglDestroyContext_func)(EGLDisplay display,
+ EGLContext context);
+typedef EGLBoolean (*eglTerminate_func)(EGLDisplay display);
+typedef EGLImageKHR (*eglCreateImageKHR_func)(EGLDisplay dpy,
+ EGLContext ctx,
+ EGLenum target,
+ EGLClientBuffer buffer,
+ const EGLint* attrib_list);
+typedef EGLBoolean (*eglDestroyImageKHR_func)(EGLDisplay dpy,
+ EGLImageKHR image);
+typedef EGLint (*eglGetError_func)(void);
+typedef void* (*eglGetProcAddress_func)(const char*);
+typedef EGLDisplay (*eglGetPlatformDisplayEXT_func)(EGLenum platform,
+ void* native_display,
+ const EGLint* attrib_list);
+typedef EGLDisplay (*eglGetPlatformDisplay_func)(EGLenum platform,
+ void* native_display,
+ const EGLAttrib* attrib_list);
+
+typedef EGLBoolean (*eglInitialize_func)(EGLDisplay dpy,
+ EGLint* major,
+ EGLint* minor);
+typedef EGLBoolean (*eglMakeCurrent_func)(EGLDisplay dpy,
+ EGLSurface draw,
+ EGLSurface read,
+ EGLContext ctx);
+typedef EGLBoolean (*eglQueryDmaBufFormatsEXT_func)(EGLDisplay dpy,
+ EGLint max_formats,
+ EGLint* formats,
+ EGLint* num_formats);
+typedef EGLBoolean (*eglQueryDmaBufModifiersEXT_func)(EGLDisplay dpy,
+ EGLint format,
+ EGLint max_modifiers,
+ EGLuint64KHR* modifiers,
+ EGLBoolean* external_only,
+ EGLint* num_modifiers);
+typedef const char* (*eglQueryString_func)(EGLDisplay dpy, EGLint name);
+typedef void (*glEGLImageTargetTexture2DOES_func)(GLenum target,
+ GLeglImageOES image);
+
+// This doesn't follow naming conventions in WebRTC, where the naming
+// should look like e.g. egl_bind_api instead of EglBindAPI, however
+// we named them according to the exported functions they map to for
+// consistency.
+eglBindAPI_func EglBindAPI = nullptr;
+eglCreateContext_func EglCreateContext = nullptr;
+eglDestroyContext_func EglDestroyContext = nullptr;
+eglTerminate_func EglTerminate = nullptr;
+eglCreateImageKHR_func EglCreateImageKHR = nullptr;
+eglDestroyImageKHR_func EglDestroyImageKHR = nullptr;
+eglGetError_func EglGetError = nullptr;
+eglGetProcAddress_func EglGetProcAddress = nullptr;
+eglGetPlatformDisplayEXT_func EglGetPlatformDisplayEXT = nullptr;
+eglGetPlatformDisplay_func EglGetPlatformDisplay = nullptr;
+eglInitialize_func EglInitialize = nullptr;
+eglMakeCurrent_func EglMakeCurrent = nullptr;
+eglQueryDmaBufFormatsEXT_func EglQueryDmaBufFormatsEXT = nullptr;
+eglQueryDmaBufModifiersEXT_func EglQueryDmaBufModifiersEXT = nullptr;
+eglQueryString_func EglQueryString = nullptr;
+glEGLImageTargetTexture2DOES_func GlEGLImageTargetTexture2DOES = nullptr;
+
+// GL
+typedef void (*glBindTexture_func)(GLenum target, GLuint texture);
+typedef void (*glDeleteTextures_func)(GLsizei n, const GLuint* textures);
+typedef void (*glGenTextures_func)(GLsizei n, GLuint* textures);
+typedef GLenum (*glGetError_func)(void);
+typedef const GLubyte* (*glGetString_func)(GLenum name);
+typedef void (*glGetTexImage_func)(GLenum target,
+ GLint level,
+ GLenum format,
+ GLenum type,
+ void* pixels);
+typedef void (*glTexParameteri_func)(GLenum target, GLenum pname, GLint param);
+typedef void* (*glXGetProcAddressARB_func)(const char*);
+
+// This doesn't follow naming conventions in WebRTC, where the naming
+// should look like e.g. egl_bind_api instead of EglBindAPI, however
+// we named them according to the exported functions they map to for
+// consistency.
+glBindTexture_func GlBindTexture = nullptr;
+glDeleteTextures_func GlDeleteTextures = nullptr;
+glGenTextures_func GlGenTextures = nullptr;
+glGetError_func GlGetError = nullptr;
+glGetString_func GlGetString = nullptr;
+glGetTexImage_func GlGetTexImage = nullptr;
+glTexParameteri_func GlTexParameteri = nullptr;
+glXGetProcAddressARB_func GlXGetProcAddressARB = nullptr;
+
+static const std::string FormatGLError(GLenum err) {
+ switch (err) {
+ case GL_NO_ERROR:
+ return "GL_NO_ERROR";
+ case GL_INVALID_ENUM:
+ return "GL_INVALID_ENUM";
+ case GL_INVALID_VALUE:
+ return "GL_INVALID_VALUE";
+ case GL_INVALID_OPERATION:
+ return "GL_INVALID_OPERATION";
+ case GL_STACK_OVERFLOW:
+ return "GL_STACK_OVERFLOW";
+ case GL_STACK_UNDERFLOW:
+ return "GL_STACK_UNDERFLOW";
+ case GL_OUT_OF_MEMORY:
+ return "GL_OUT_OF_MEMORY";
+ default:
+ return "GL error code: " + std::to_string(err);
+ }
+}
+
+static const std::string FormatEGLError(EGLint err) {
+ switch (err) {
+ case EGL_NOT_INITIALIZED:
+ return "EGL_NOT_INITIALIZED";
+ case EGL_BAD_ACCESS:
+ return "EGL_BAD_ACCESS";
+ case EGL_BAD_ALLOC:
+ return "EGL_BAD_ALLOC";
+ case EGL_BAD_ATTRIBUTE:
+ return "EGL_BAD_ATTRIBUTE";
+ case EGL_BAD_CONTEXT:
+ return "EGL_BAD_CONTEXT";
+ case EGL_BAD_CONFIG:
+ return "EGL_BAD_CONFIG";
+ case EGL_BAD_CURRENT_SURFACE:
+ return "EGL_BAD_CURRENT_SURFACE";
+ case EGL_BAD_DISPLAY:
+ return "EGL_BAD_DISPLAY";
+ case EGL_BAD_SURFACE:
+ return "EGL_BAD_SURFACE";
+ case EGL_BAD_MATCH:
+ return "EGL_BAD_MATCH";
+ case EGL_BAD_PARAMETER:
+ return "EGL_BAD_PARAMETER";
+ case EGL_BAD_NATIVE_PIXMAP:
+ return "EGL_BAD_NATIVE_PIXMAP";
+ case EGL_BAD_NATIVE_WINDOW:
+ return "EGL_BAD_NATIVE_WINDOW";
+ case EGL_CONTEXT_LOST:
+ return "EGL_CONTEXT_LOST";
+ default:
+ return "EGL error code: " + std::to_string(err);
+ }
+}
+
+static uint32_t SpaPixelFormatToDrmFormat(uint32_t spa_format) {
+ switch (spa_format) {
+ case SPA_VIDEO_FORMAT_RGBA:
+ return DRM_FORMAT_ABGR8888;
+ case SPA_VIDEO_FORMAT_RGBx:
+ return DRM_FORMAT_XBGR8888;
+ case SPA_VIDEO_FORMAT_BGRA:
+ return DRM_FORMAT_ARGB8888;
+ case SPA_VIDEO_FORMAT_BGRx:
+ return DRM_FORMAT_XRGB8888;
+ default:
+ return DRM_FORMAT_INVALID;
+ }
+}
+
+static void CloseLibrary(void* library) {
+ if (library) {
+ dlclose(library);
+ library = nullptr;
+ }
+}
+
+static void* g_lib_egl = nullptr;
+
+static bool OpenEGL() {
+ g_lib_egl = dlopen("libEGL.so.1", RTLD_NOW | RTLD_GLOBAL);
+ if (g_lib_egl) {
+ EglGetProcAddress =
+ (eglGetProcAddress_func)dlsym(g_lib_egl, "eglGetProcAddress");
+ return EglGetProcAddress;
+ }
+
+ return false;
+}
+
+static bool LoadEGL() {
+ if (OpenEGL()) {
+ EglBindAPI = (eglBindAPI_func)EglGetProcAddress("eglBindAPI");
+ EglCreateContext =
+ (eglCreateContext_func)EglGetProcAddress("eglCreateContext");
+ EglDestroyContext =
+ (eglDestroyContext_func)EglGetProcAddress("eglDestroyContext");
+ EglTerminate = (eglTerminate_func)EglGetProcAddress("eglTerminate");
+ EglCreateImageKHR =
+ (eglCreateImageKHR_func)EglGetProcAddress("eglCreateImageKHR");
+ EglDestroyImageKHR =
+ (eglDestroyImageKHR_func)EglGetProcAddress("eglDestroyImageKHR");
+ EglGetError = (eglGetError_func)EglGetProcAddress("eglGetError");
+ EglGetPlatformDisplayEXT = (eglGetPlatformDisplayEXT_func)EglGetProcAddress(
+ "eglGetPlatformDisplayEXT");
+ EglGetPlatformDisplay =
+ (eglGetPlatformDisplay_func)EglGetProcAddress("eglGetPlatformDisplay");
+ EglInitialize = (eglInitialize_func)EglGetProcAddress("eglInitialize");
+ EglMakeCurrent = (eglMakeCurrent_func)EglGetProcAddress("eglMakeCurrent");
+ EglQueryString = (eglQueryString_func)EglGetProcAddress("eglQueryString");
+ GlEGLImageTargetTexture2DOES =
+ (glEGLImageTargetTexture2DOES_func)EglGetProcAddress(
+ "glEGLImageTargetTexture2DOES");
+
+ return EglBindAPI && EglCreateContext && EglCreateImageKHR &&
+ EglTerminate && EglDestroyContext && EglDestroyImageKHR &&
+ EglGetError && EglGetPlatformDisplayEXT && EglGetPlatformDisplay &&
+ EglInitialize && EglMakeCurrent && EglQueryString &&
+ GlEGLImageTargetTexture2DOES;
+ }
+
+ return false;
+}
+
+static void* g_lib_gl = nullptr;
+
+static bool OpenGL() {
+ std::vector<std::string> names = {"libGL.so.1", "libGL.so"};
+ for (const std::string& name : names) {
+ g_lib_gl = dlopen(name.c_str(), RTLD_NOW | RTLD_GLOBAL);
+ if (g_lib_gl) {
+ GlXGetProcAddressARB =
+ (glXGetProcAddressARB_func)dlsym(g_lib_gl, "glXGetProcAddressARB");
+ return GlXGetProcAddressARB;
+ }
+ }
+
+ return false;
+}
+
+static bool LoadGL() {
+ if (OpenGL()) {
+ GlGetString = (glGetString_func)GlXGetProcAddressARB("glGetString");
+ if (!GlGetString) {
+ return false;
+ }
+
+ GlBindTexture = (glBindTexture_func)GlXGetProcAddressARB("glBindTexture");
+ GlDeleteTextures =
+ (glDeleteTextures_func)GlXGetProcAddressARB("glDeleteTextures");
+ GlGenTextures = (glGenTextures_func)GlXGetProcAddressARB("glGenTextures");
+ GlGetError = (glGetError_func)GlXGetProcAddressARB("glGetError");
+ GlGetTexImage = (glGetTexImage_func)GlXGetProcAddressARB("glGetTexImage");
+ GlTexParameteri =
+ (glTexParameteri_func)GlXGetProcAddressARB("glTexParameteri");
+
+ return GlBindTexture && GlDeleteTextures && GlGenTextures && GlGetError &&
+ GlGetTexImage && GlTexParameteri;
+ }
+
+ return false;
+}
+
+EglDmaBuf::EglDmaBuf() {
+ if (!LoadEGL()) {
+ RTC_LOG(LS_ERROR) << "Unable to load EGL entry functions.";
+ CloseLibrary(g_lib_egl);
+ return;
+ }
+
+ if (!LoadGL()) {
+ RTC_LOG(LS_ERROR) << "Failed to load OpenGL entry functions.";
+ CloseLibrary(g_lib_gl);
+ return;
+ }
+
+ if (!GetClientExtensions(EGL_NO_DISPLAY, EGL_EXTENSIONS)) {
+ return;
+ }
+
+ bool has_platform_base_ext = false;
+ bool has_platform_gbm_ext = false;
+ bool has_khr_platform_gbm_ext = false;
+
+ for (const auto& extension : egl_.extensions) {
+ if (extension == "EGL_EXT_platform_base") {
+ has_platform_base_ext = true;
+ continue;
+ } else if (extension == "EGL_MESA_platform_gbm") {
+ has_platform_gbm_ext = true;
+ continue;
+ } else if (extension == "EGL_KHR_platform_gbm") {
+ has_khr_platform_gbm_ext = true;
+ continue;
+ }
+ }
+
+ if (!has_platform_base_ext || !has_platform_gbm_ext ||
+ !has_khr_platform_gbm_ext) {
+ RTC_LOG(LS_ERROR) << "One of required EGL extensions is missing";
+ return;
+ }
+
+ egl_.display = EglGetPlatformDisplay(EGL_PLATFORM_WAYLAND_KHR,
+ (void*)EGL_DEFAULT_DISPLAY, nullptr);
+
+ if (egl_.display == EGL_NO_DISPLAY) {
+ RTC_LOG(LS_ERROR) << "Failed to obtain default EGL display: "
+ << FormatEGLError(EglGetError()) << "\n"
+ << "Defaulting to using first available render node";
+ absl::optional<std::string> render_node = GetRenderNode();
+ if (!render_node) {
+ return;
+ }
+
+ drm_fd_ = open(render_node->c_str(), O_RDWR);
+
+ if (drm_fd_ < 0) {
+ RTC_LOG(LS_ERROR) << "Failed to open drm render node: "
+ << strerror(errno);
+ return;
+ }
+
+ gbm_device_ = gbm_create_device(drm_fd_);
+
+ if (!gbm_device_) {
+ RTC_LOG(LS_ERROR) << "Cannot create GBM device: " << strerror(errno);
+ close(drm_fd_);
+ return;
+ }
+
+ // Use eglGetPlatformDisplayEXT() to get the display pointer
+ // if the implementation supports it.
+ egl_.display =
+ EglGetPlatformDisplayEXT(EGL_PLATFORM_GBM_KHR, gbm_device_, nullptr);
+ }
+
+ if (egl_.display == EGL_NO_DISPLAY) {
+ RTC_LOG(LS_ERROR) << "Error during obtaining EGL display: "
+ << FormatEGLError(EglGetError());
+ return;
+ }
+
+ EGLint major, minor;
+ if (EglInitialize(egl_.display, &major, &minor) == EGL_FALSE) {
+ RTC_LOG(LS_ERROR) << "Error during eglInitialize: "
+ << FormatEGLError(EglGetError());
+ return;
+ }
+
+ if (EglBindAPI(EGL_OPENGL_API) == EGL_FALSE) {
+ RTC_LOG(LS_ERROR) << "bind OpenGL API failed";
+ return;
+ }
+
+ egl_.context =
+ EglCreateContext(egl_.display, nullptr, EGL_NO_CONTEXT, nullptr);
+
+ if (egl_.context == EGL_NO_CONTEXT) {
+ RTC_LOG(LS_ERROR) << "Couldn't create EGL context: "
+ << FormatGLError(EglGetError());
+ return;
+ }
+
+ if (!GetClientExtensions(egl_.display, EGL_EXTENSIONS)) {
+ return;
+ }
+
+ bool has_image_dma_buf_import_modifiers_ext = false;
+
+ for (const auto& extension : egl_.extensions) {
+ if (extension == "EGL_EXT_image_dma_buf_import") {
+ has_image_dma_buf_import_ext_ = true;
+ continue;
+ } else if (extension == "EGL_EXT_image_dma_buf_import_modifiers") {
+ has_image_dma_buf_import_modifiers_ext = true;
+ continue;
+ }
+ }
+
+ if (has_image_dma_buf_import_ext_ && has_image_dma_buf_import_modifiers_ext) {
+ EglQueryDmaBufFormatsEXT = (eglQueryDmaBufFormatsEXT_func)EglGetProcAddress(
+ "eglQueryDmaBufFormatsEXT");
+ EglQueryDmaBufModifiersEXT =
+ (eglQueryDmaBufModifiersEXT_func)EglGetProcAddress(
+ "eglQueryDmaBufModifiersEXT");
+ }
+
+ RTC_LOG(LS_INFO) << "Egl initialization succeeded";
+ egl_initialized_ = true;
+}
+
+EglDmaBuf::~EglDmaBuf() {
+ if (gbm_device_) {
+ gbm_device_destroy(gbm_device_);
+ close(drm_fd_);
+ }
+
+ if (egl_.context != EGL_NO_CONTEXT) {
+ EglDestroyContext(egl_.display, egl_.context);
+ }
+
+ if (egl_.display != EGL_NO_DISPLAY) {
+ EglTerminate(egl_.display);
+ }
+
+ // BUG: crbug.com/1290566
+ // Closing libEGL.so.1 when using NVidia drivers causes a crash
+ // when EglGetPlatformDisplayEXT() is used, at least this one is enough
+ // to be called to make it crash.
+ // It also looks that libepoxy and glad don't dlclose it either
+ // CloseLibrary(g_lib_egl);
+ // CloseLibrary(g_lib_gl);
+}
+
+bool EglDmaBuf::GetClientExtensions(EGLDisplay dpy, EGLint name) {
+ // Get the list of client extensions
+ const char* client_extensions_cstring = EglQueryString(dpy, name);
+ if (!client_extensions_cstring) {
+ // If eglQueryString() returned NULL, the implementation doesn't support
+ // EGL_EXT_client_extensions. Expect an EGL_BAD_DISPLAY error.
+ RTC_LOG(LS_ERROR) << "No client extensions defined! "
+ << FormatEGLError(EglGetError());
+ return false;
+ }
+
+ std::vector<std::string> client_extensions;
+ rtc::split(client_extensions_cstring, ' ',
+ &client_extensions);
+ for (const auto& extension : client_extensions) {
+ egl_.extensions.push_back(extension);
+ }
+
+ return true;
+}
+
+std::unique_ptr<uint8_t[]> EglDmaBuf::ImageFromDmaBuf(
+ const DesktopSize& size,
+ uint32_t format,
+ const std::vector<PlaneData>& plane_datas,
+ uint64_t modifier) {
+ std::unique_ptr<uint8_t[]> src;
+
+ if (!egl_initialized_) {
+ return src;
+ }
+
+ if (plane_datas.size() <= 0) {
+ RTC_LOG(LS_ERROR) << "Failed to process buffer: invalid number of planes";
+ return src;
+ }
+
+ EGLint attribs[47];
+ int atti = 0;
+
+ attribs[atti++] = EGL_WIDTH;
+ attribs[atti++] = static_cast<EGLint>(size.width());
+ attribs[atti++] = EGL_HEIGHT;
+ attribs[atti++] = static_cast<EGLint>(size.height());
+ attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
+ attribs[atti++] = SpaPixelFormatToDrmFormat(format);
+
+ if (plane_datas.size() > 0) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE0_FD_EXT;
+ attribs[atti++] = plane_datas[0].fd;
+ attribs[atti++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
+ attribs[atti++] = plane_datas[0].offset;
+ attribs[atti++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
+ attribs[atti++] = plane_datas[0].stride;
+
+ if (modifier != DRM_FORMAT_MOD_INVALID) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
+ attribs[atti++] = modifier & 0xFFFFFFFF;
+ attribs[atti++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
+ attribs[atti++] = modifier >> 32;
+ }
+ }
+
+ if (plane_datas.size() > 1) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE1_FD_EXT;
+ attribs[atti++] = plane_datas[1].fd;
+ attribs[atti++] = EGL_DMA_BUF_PLANE1_OFFSET_EXT;
+ attribs[atti++] = plane_datas[1].offset;
+ attribs[atti++] = EGL_DMA_BUF_PLANE1_PITCH_EXT;
+ attribs[atti++] = plane_datas[1].stride;
+
+ if (modifier != DRM_FORMAT_MOD_INVALID) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT;
+ attribs[atti++] = modifier & 0xFFFFFFFF;
+ attribs[atti++] = EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT;
+ attribs[atti++] = modifier >> 32;
+ }
+ }
+
+ if (plane_datas.size() > 2) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE2_FD_EXT;
+ attribs[atti++] = plane_datas[2].fd;
+ attribs[atti++] = EGL_DMA_BUF_PLANE2_OFFSET_EXT;
+ attribs[atti++] = plane_datas[2].offset;
+ attribs[atti++] = EGL_DMA_BUF_PLANE2_PITCH_EXT;
+ attribs[atti++] = plane_datas[2].stride;
+
+ if (modifier != DRM_FORMAT_MOD_INVALID) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT;
+ attribs[atti++] = modifier & 0xFFFFFFFF;
+ attribs[atti++] = EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT;
+ attribs[atti++] = modifier >> 32;
+ }
+ }
+
+ if (plane_datas.size() > 3) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE3_FD_EXT;
+ attribs[atti++] = plane_datas[3].fd;
+ attribs[atti++] = EGL_DMA_BUF_PLANE3_OFFSET_EXT;
+ attribs[atti++] = plane_datas[3].offset;
+ attribs[atti++] = EGL_DMA_BUF_PLANE3_PITCH_EXT;
+ attribs[atti++] = plane_datas[3].stride;
+
+ if (modifier != DRM_FORMAT_MOD_INVALID) {
+ attribs[atti++] = EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT;
+ attribs[atti++] = modifier & 0xFFFFFFFF;
+ attribs[atti++] = EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT;
+ attribs[atti++] = modifier >> 32;
+ }
+ }
+
+ attribs[atti++] = EGL_NONE;
+
+ // bind context to render thread
+ EglMakeCurrent(egl_.display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl_.context);
+
+ // create EGL image from attribute list
+ EGLImageKHR image = EglCreateImageKHR(
+ egl_.display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, nullptr, attribs);
+
+ if (image == EGL_NO_IMAGE) {
+ RTC_LOG(LS_ERROR) << "Failed to record frame: Error creating EGLImage - "
+ << FormatEGLError(EglGetError());
+ return src;
+ }
+
+ // create GL 2D texture for framebuffer
+ GLuint texture;
+ GlGenTextures(1, &texture);
+ GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ GlTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ GlBindTexture(GL_TEXTURE_2D, texture);
+ GlEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
+
+ src = std::make_unique<uint8_t[]>(plane_datas[0].stride * size.height());
+
+ GLenum gl_format = GL_BGRA;
+ switch (format) {
+ case SPA_VIDEO_FORMAT_RGBx:
+ gl_format = GL_RGBA;
+ break;
+ case SPA_VIDEO_FORMAT_RGBA:
+ gl_format = GL_RGBA;
+ break;
+ case SPA_VIDEO_FORMAT_BGRx:
+ gl_format = GL_BGRA;
+ break;
+ default:
+ gl_format = GL_BGRA;
+ break;
+ }
+ GlGetTexImage(GL_TEXTURE_2D, 0, gl_format, GL_UNSIGNED_BYTE, src.get());
+
+ if (GlGetError()) {
+ RTC_LOG(LS_ERROR) << "Failed to get image from DMA buffer.";
+ return src;
+ }
+
+ GlDeleteTextures(1, &texture);
+ EglDestroyImageKHR(egl_.display, image);
+
+ return src;
+}
+
+std::vector<uint64_t> EglDmaBuf::QueryDmaBufModifiers(uint32_t format) {
+ if (!egl_initialized_) {
+ return {};
+ }
+
+ // Explicit modifiers not supported, return just DRM_FORMAT_MOD_INVALID as we
+ // can still use modifier-less DMA-BUFs if we have required extension
+ if (EglQueryDmaBufFormatsEXT == nullptr ||
+ EglQueryDmaBufModifiersEXT == nullptr) {
+ return has_image_dma_buf_import_ext_
+ ? std::vector<uint64_t>{DRM_FORMAT_MOD_INVALID}
+ : std::vector<uint64_t>{};
+ }
+
+ uint32_t drm_format = SpaPixelFormatToDrmFormat(format);
+ // Should never happen as it's us who controls the list of supported formats
+ RTC_DCHECK(drm_format != DRM_FORMAT_INVALID);
+
+ EGLint count = 0;
+ EGLBoolean success =
+ EglQueryDmaBufFormatsEXT(egl_.display, 0, nullptr, &count);
+
+ if (!success || !count) {
+ RTC_LOG(LS_ERROR) << "Failed to query DMA-BUF formats.";
+ return {DRM_FORMAT_MOD_INVALID};
+ }
+
+ std::vector<uint32_t> formats(count);
+ if (!EglQueryDmaBufFormatsEXT(egl_.display, count,
+ reinterpret_cast<EGLint*>(formats.data()),
+ &count)) {
+ RTC_LOG(LS_ERROR) << "Failed to query DMA-BUF formats.";
+ return {DRM_FORMAT_MOD_INVALID};
+ }
+
+ if (std::find(formats.begin(), formats.end(), drm_format) == formats.end()) {
+ RTC_LOG(LS_ERROR) << "Format " << drm_format
+ << " not supported for modifiers.";
+ return {DRM_FORMAT_MOD_INVALID};
+ }
+
+ success = EglQueryDmaBufModifiersEXT(egl_.display, drm_format, 0, nullptr,
+ nullptr, &count);
+
+ if (!success || !count) {
+ RTC_LOG(LS_ERROR) << "Failed to query DMA-BUF modifiers.";
+ return {DRM_FORMAT_MOD_INVALID};
+ }
+
+ std::vector<uint64_t> modifiers(count);
+ if (!EglQueryDmaBufModifiersEXT(egl_.display, drm_format, count,
+ modifiers.data(), nullptr, &count)) {
+ RTC_LOG(LS_ERROR) << "Failed to query DMA-BUF modifiers.";
+ }
+
+ // Support modifier-less buffers
+ modifiers.push_back(DRM_FORMAT_MOD_INVALID);
+ return modifiers;
+}
+
+absl::optional<std::string> EglDmaBuf::GetRenderNode() {
+ int max_devices = drmGetDevices2(0, nullptr, 0);
+ if (max_devices <= 0) {
+ RTC_LOG(LS_ERROR) << "drmGetDevices2() has not found any devices (errno="
+ << -max_devices << ")";
+ return absl::nullopt;
+ }
+
+ std::vector<drmDevicePtr> devices(max_devices);
+ int ret = drmGetDevices2(0, devices.data(), max_devices);
+ if (ret < 0) {
+ RTC_LOG(LS_ERROR) << "drmGetDevices2() returned an error " << ret;
+ return absl::nullopt;
+ }
+
+ std::string render_node;
+
+ for (const drmDevicePtr& device : devices) {
+ if (device->available_nodes & (1 << DRM_NODE_RENDER)) {
+ render_node = device->nodes[DRM_NODE_RENDER];
+ break;
+ }
+ }
+
+ drmFreeDevices(devices.data(), ret);
+ return render_node;
+}
+
+} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.h b/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.h
new file mode 100644
index 0000000..b755d8b
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/egl_dmabuf.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2021 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_EGL_DMABUF_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_EGL_DMABUF_H_
+
+#include <epoxy/egl.h>
+#include <epoxy/gl.h>
+#include <gbm/gbm.h>
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "absl/types/optional.h"
+#include "modules/desktop_capture/desktop_geometry.h"
+
+namespace webrtc {
+
+class EglDmaBuf {
+ public:
+ struct EGLStruct {
+ std::vector<std::string> extensions;
+ EGLDisplay display = EGL_NO_DISPLAY;
+ EGLContext context = EGL_NO_CONTEXT;
+ };
+
+ struct PlaneData {
+ int32_t fd;
+ uint32_t stride;
+ uint32_t offset;
+ };
+
+ EglDmaBuf();
+ ~EglDmaBuf();
+
+ std::unique_ptr<uint8_t[]> ImageFromDmaBuf(
+ const DesktopSize& size,
+ uint32_t format,
+ const std::vector<PlaneData>& plane_datas,
+ uint64_t modifiers);
+ std::vector<uint64_t> QueryDmaBufModifiers(uint32_t format);
+
+ bool IsEglInitialized() const { return egl_initialized_; }
+
+ private:
+ bool GetClientExtensions(EGLDisplay dpy, EGLint name);
+
+ bool egl_initialized_ = false;
+ bool has_image_dma_buf_import_ext_ = false;
+ int32_t drm_fd_ = -1; // for GBM buffer mmap
+ gbm_device* gbm_device_ = nullptr; // for passed GBM buffer retrieval
+
+ EGLStruct egl_;
+
+ absl::optional<std::string> GetRenderNode();
+};
+
+} // namespace webrtc
+
+#endif // MODULES_DESKTOP_CAPTURE_LINUX_EGL_DMABUF_H_
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.cc b/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.cc
new file mode 100644
index 0000000..09dea24
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.cc
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.h"
+
+#include <utility>
+
+#include "modules/desktop_capture/desktop_capture_options.h"
+#include "modules/desktop_capture/desktop_capturer.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+
+namespace webrtc {
+
+MouseCursorMonitorPipeWire::MouseCursorMonitorPipeWire(
+ const DesktopCaptureOptions& options)
+ : options_(options) {
+}
+
+MouseCursorMonitorPipeWire::~MouseCursorMonitorPipeWire() {}
+
+void MouseCursorMonitorPipeWire::Init(Callback* callback, Mode mode) {
+ RTC_DCHECK(!callback_);
+ RTC_DCHECK(callback);
+
+ callback_ = callback;
+ mode_ = mode;
+}
+
+void MouseCursorMonitorPipeWire::Capture() {
+ RTC_DCHECK(callback_);
+
+ std::unique_ptr<MouseCursor> mouse_cursor =
+ options_.screencast_stream()->CaptureCursor();
+
+ if (mouse_cursor && mouse_cursor->image()->data()) {
+ callback_->OnMouseCursor(mouse_cursor.release());
+ }
+
+ if (mode_ == SHAPE_AND_POSITION) {
+ absl::optional<DesktopVector> mouse_cursor_position =
+ options_.screencast_stream()->CaptureCursorPosition();
+ if (mouse_cursor_position) {
+ callback_->OnMouseCursorPosition(mouse_cursor_position.value());
+ }
+ }
+}
+
+} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.h b/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.h
new file mode 100644
index 0000000..9b9ccf7
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_MOUSE_CURSOR_MONITOR_PIPEWIRE_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_MOUSE_CURSOR_MONITOR_PIPEWIRE_H_
+
+#include <memory>
+
+#include "api/scoped_refptr.h"
+#include "modules/desktop_capture/desktop_capture_options.h"
+#include "modules/desktop_capture/desktop_capture_types.h"
+#include "modules/desktop_capture/linux/shared_screencast_stream.h"
+#include "modules/desktop_capture/mouse_cursor.h"
+#include "modules/desktop_capture/mouse_cursor_monitor.h"
+
+namespace webrtc {
+
+class MouseCursorMonitorPipeWire : public MouseCursorMonitor {
+ public:
+ explicit MouseCursorMonitorPipeWire(const DesktopCaptureOptions& options);
+ ~MouseCursorMonitorPipeWire() override;
+
+ // MouseCursorMonitor:
+ void Init(Callback* callback, Mode mode) override;
+ void Capture() override;
+
+ DesktopCaptureOptions options_;
+ Callback* callback_ = nullptr;
+ Mode mode_ = SHAPE_AND_POSITION;
+};
+
+} // namespace webrtc
+
+#endif // MODULES_DESKTOP_CAPTURE_LINUX_MOUSE_CURSOR_MONITOR_PIPEWIRE_H_
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/pipewire.sigs b/third_party/libwebrtc/modules/desktop_capture/linux/pipewire.sigs
index 3e21e9d..06a97b8 100644
--- a/third_party/libwebrtc/modules/desktop_capture/linux/pipewire.sigs
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/pipewire.sigs
@@ -7,38 +7,44 @@
//------------------------------------------------
// core.h
-void pw_core_destroy(pw_core *core);
-pw_type *pw_core_get_type(pw_core *core);
-pw_core * pw_core_new(pw_loop *main_loop, pw_properties *props);
+int pw_core_disconnect(pw_core *core);
// loop.h
void pw_loop_destroy(pw_loop *loop);
-pw_loop * pw_loop_new(pw_properties *properties);
+pw_loop * pw_loop_new(const spa_dict *props);
+
// pipewire.h
void pw_init(int *argc, char **argv[]);
+const char* pw_get_library_version();
// properties.h
pw_properties * pw_properties_new_string(const char *args);
-// remote.h
-void pw_remote_add_listener(pw_remote *remote, spa_hook *listener, const pw_remote_events *events, void *data);
-int pw_remote_connect_fd(pw_remote *remote, int fd);
-void pw_remote_destroy(pw_remote *remote);
-pw_remote * pw_remote_new(pw_core *core, pw_properties *properties, size_t user_data_size);
-
// stream.h
void pw_stream_add_listener(pw_stream *stream, spa_hook *listener, const pw_stream_events *events, void *data);
-int pw_stream_connect(pw_stream *stream, enum pw_direction direction, const char *port_path, enum pw_stream_flags flags, const spa_pod **params, uint32_t n_params);
+int pw_stream_connect(pw_stream *stream, enum pw_direction direction, uint32_t target_id, enum pw_stream_flags flags, const spa_pod **params, uint32_t n_params);
+int pw_stream_disconnect(pw_stream *stream);
pw_buffer *pw_stream_dequeue_buffer(pw_stream *stream);
void pw_stream_destroy(pw_stream *stream);
-void pw_stream_finish_format(pw_stream *stream, int res, const spa_pod **params, uint32_t n_params);
-pw_stream * pw_stream_new(pw_remote *remote, const char *name, pw_properties *props);
+pw_stream * pw_stream_new(pw_core *core, const char *name, pw_properties *props);
int pw_stream_queue_buffer(pw_stream *stream, pw_buffer *buffer);
int pw_stream_set_active(pw_stream *stream, bool active);
+int pw_stream_update_params(pw_stream *stream, const spa_pod **params, uint32_t n_params);
// thread-loop.h
void pw_thread_loop_destroy(pw_thread_loop *loop);
-pw_thread_loop * pw_thread_loop_new(pw_loop *loop, const char *name);
+pw_thread_loop * pw_thread_loop_new(const char *name, const spa_dict *props);
int pw_thread_loop_start(pw_thread_loop *loop);
void pw_thread_loop_stop(pw_thread_loop *loop);
+void pw_thread_loop_lock(pw_thread_loop *loop);
+void pw_thread_loop_unlock(pw_thread_loop *loop);
+pw_loop * pw_thread_loop_get_loop(pw_thread_loop *loop);
+void pw_thread_loop_signal(pw_thread_loop *loop, bool wait_for_accept);
+void pw_thread_loop_wait(pw_thread_loop *loop);
+
+// context.h
+void pw_context_destroy(pw_context *context);
+pw_context *pw_context_new(pw_loop *main_loop, pw_properties *props, size_t user_data_size);
+pw_core * pw_context_connect(pw_context *context, pw_properties *properties, size_t user_data_size);
+pw_core * pw_context_connect_fd(pw_context *context, int fd, pw_properties *properties, size_t user_data_size);
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/pipewire_stub_header.fragment b/third_party/libwebrtc/modules/desktop_capture/linux/pipewire_stub_header.fragment
index 9d7dbd2..06ae18d 100644
--- a/third_party/libwebrtc/modules/desktop_capture/linux/pipewire_stub_header.fragment
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/pipewire_stub_header.fragment
@@ -5,4 +5,5 @@ extern "C" {
#include <pipewire/pipewire.h>
+#include <xf86drm.h>
}
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.cc b/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.cc
new file mode 100644
index 0000000..51ca57a
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.cc
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/desktop_capture/linux/scoped_glib.h"
+
+namespace webrtc {
+
+template <>
+Scoped<GError>::~Scoped() {
+ if (ptr_) {
+ g_error_free(ptr_);
+ }
+}
+
+template <>
+Scoped<char>::~Scoped() {
+ if (ptr_) {
+ g_free(ptr_);
+ }
+}
+
+template <>
+Scoped<GVariant>::~Scoped() {
+ if (ptr_) {
+ g_variant_unref(ptr_);
+ }
+}
+
+template <>
+Scoped<GVariantIter>::~Scoped() {
+ if (ptr_) {
+ g_variant_iter_free(ptr_);
+ }
+}
+
+template <>
+Scoped<GDBusMessage>::~Scoped() {
+ if (ptr_) {
+ g_object_unref(ptr_);
+ }
+}
+
+template <>
+Scoped<GUnixFDList>::~Scoped() {
+ if (ptr_) {
+ g_object_unref(ptr_);
+ }
+}
+
+} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.h b/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.h
new file mode 100644
index 0000000..bf77855
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/scoped_glib.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_SCOPED_GLIB_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_SCOPED_GLIB_H_
+
+#include <gio/gio.h>
+
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+
+template <class T>
+class Scoped {
+ public:
+ Scoped() {}
+ explicit Scoped(T* val) { ptr_ = val; }
+ ~Scoped() { RTC_DCHECK_NOTREACHED(); }
+
+ T* operator->() const { return ptr_; }
+
+ explicit operator bool() const { return ptr_ != nullptr; }
+
+ bool operator!() const { return ptr_ == nullptr; }
+
+ T* get() const { return ptr_; }
+
+ T** receive() {
+ RTC_CHECK(!ptr_);
+ return &ptr_;
+ }
+
+ Scoped& operator=(T* val) {
+ RTC_DCHECK(val);
+ ptr_ = val;
+ return *this;
+ }
+
+ protected:
+ T* ptr_ = nullptr;
+};
+
+template <>
+Scoped<GError>::~Scoped();
+template <>
+Scoped<char>::~Scoped();
+template <>
+Scoped<GVariant>::~Scoped();
+template <>
+Scoped<GVariantIter>::~Scoped();
+template <>
+Scoped<GDBusMessage>::~Scoped();
+template <>
+Scoped<GUnixFDList>::~Scoped();
+
+} // namespace webrtc
+
+#endif // MODULES_DESKTOP_CAPTURE_LINUX_SCOPED_GLIB_H_
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc b/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
deleted file mode 100644
index 3813d69..0000000
--- a/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.cc
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2018 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "modules/desktop_capture/linux/screen_capturer_pipewire.h"
-
-#include <memory>
-
-namespace webrtc {
-
-ScreenCapturerPipeWire::ScreenCapturerPipeWire()
- : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::kScreen) {}
-ScreenCapturerPipeWire::~ScreenCapturerPipeWire() {}
-
-// static
-std::unique_ptr<DesktopCapturer>
-ScreenCapturerPipeWire::CreateRawScreenCapturer(
- const DesktopCaptureOptions& options) {
- return std::make_unique<ScreenCapturerPipeWire>();
-}
-
-} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.h b/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.h
deleted file mode 100644
index 66dcd68..0000000
--- a/third_party/libwebrtc/modules/desktop_capture/linux/screen_capturer_pipewire.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright 2018 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef MODULES_DESKTOP_CAPTURE_LINUX_SCREEN_CAPTURER_PIPEWIRE_H_
-#define MODULES_DESKTOP_CAPTURE_LINUX_SCREEN_CAPTURER_PIPEWIRE_H_
-
-#include <memory>
-
-#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
-
-namespace webrtc {
-
-class ScreenCapturerPipeWire : public BaseCapturerPipeWire {
- public:
- ScreenCapturerPipeWire();
- ~ScreenCapturerPipeWire() override;
-
- static std::unique_ptr<DesktopCapturer> CreateRawScreenCapturer(
- const DesktopCaptureOptions& options);
-
- RTC_DISALLOW_COPY_AND_ASSIGN(ScreenCapturerPipeWire);
-};
-
-} // namespace webrtc
-
-#endif // MODULES_DESKTOP_CAPTURE_LINUX_SCREEN_CAPTURER_PIPEWIRE_H_
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.cc b/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.cc
new file mode 100644
index 0000000..306e984
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.cc
@@ -0,0 +1,532 @@
+/*
+ * Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/desktop_capture/linux/screencast_portal.h"
+
+#include <gio/gunixfdlist.h>
+#include <glib-object.h>
+
+#include "modules/desktop_capture/linux/scoped_glib.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+
+namespace webrtc {
+
+const char kDesktopBusName[] = "org.freedesktop.portal.Desktop";
+const char kDesktopObjectPath[] = "/org/freedesktop/portal/desktop";
+const char kDesktopRequestObjectPath[] =
+ "/org/freedesktop/portal/desktop/request";
+const char kSessionInterfaceName[] = "org.freedesktop.portal.Session";
+const char kRequestInterfaceName[] = "org.freedesktop.portal.Request";
+const char kScreenCastInterfaceName[] = "org.freedesktop.portal.ScreenCast";
+
+ScreenCastPortal::ScreenCastPortal(CaptureSourceType source_type,
+ PortalNotifier* notifier)
+ : notifier_(notifier), capture_source_type_(source_type) {}
+
+ScreenCastPortal::~ScreenCastPortal() {
+ if (start_request_signal_id_) {
+ g_dbus_connection_signal_unsubscribe(connection_, start_request_signal_id_);
+ }
+ if (sources_request_signal_id_) {
+ g_dbus_connection_signal_unsubscribe(connection_,
+ sources_request_signal_id_);
+ }
+ if (session_request_signal_id_) {
+ g_dbus_connection_signal_unsubscribe(connection_,
+ session_request_signal_id_);
+ }
+
+ if (!session_handle_.empty()) {
+ Scoped<GDBusMessage> message(
+ g_dbus_message_new_method_call(kDesktopBusName, session_handle_.c_str(),
+ kSessionInterfaceName, "Close"));
+ if (message.get()) {
+ Scoped<GError> error;
+ g_dbus_connection_send_message(connection_, message.get(),
+ G_DBUS_SEND_MESSAGE_FLAGS_NONE,
+ /*out_serial=*/nullptr, error.receive());
+ if (error.get()) {
+ RTC_LOG(LS_ERROR) << "Failed to close the session: " << error->message;
+ }
+ }
+ }
+
+ if (cancellable_) {
+ g_cancellable_cancel(cancellable_);
+ g_object_unref(cancellable_);
+ cancellable_ = nullptr;
+ }
+
+ if (proxy_) {
+ g_object_unref(proxy_);
+ proxy_ = nullptr;
+ }
+
+ if (pw_fd_ != -1) {
+ close(pw_fd_);
+ }
+}
+
+void ScreenCastPortal::Start() {
+ cancellable_ = g_cancellable_new();
+ g_dbus_proxy_new_for_bus(
+ G_BUS_TYPE_SESSION, G_DBUS_PROXY_FLAGS_NONE, /*info=*/nullptr,
+ kDesktopBusName, kDesktopObjectPath, kScreenCastInterfaceName,
+ cancellable_, reinterpret_cast<GAsyncReadyCallback>(OnProxyRequested),
+ this);
+}
+
+void ScreenCastPortal::PortalFailed(RequestResponse result) {
+ notifier_->OnScreenCastRequestResult(result, pw_stream_node_id_, pw_fd_);
+}
+
+uint32_t ScreenCastPortal::SetupRequestResponseSignal(
+ const char* object_path,
+ GDBusSignalCallback callback) {
+ return g_dbus_connection_signal_subscribe(
+ connection_, kDesktopBusName, kRequestInterfaceName, "Response",
+ object_path, /*arg0=*/nullptr, G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
+ callback, this, /*user_data_free_func=*/nullptr);
+}
+
+// static
+void ScreenCastPortal::OnProxyRequested(GObject* /*object*/,
+ GAsyncResult* result,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ Scoped<GError> error;
+ GDBusProxy* proxy = g_dbus_proxy_new_finish(result, error.receive());
+ if (!proxy) {
+ if (g_error_matches(error.get(), G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ return;
+ RTC_LOG(LS_ERROR) << "Failed to create a proxy for the screen cast portal: "
+ << error->message;
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+ that->proxy_ = proxy;
+ that->connection_ = g_dbus_proxy_get_connection(that->proxy_);
+
+ RTC_LOG(LS_INFO) << "Created proxy for the screen cast portal.";
+
+ that->SessionRequest();
+}
+
+// static
+std::string ScreenCastPortal::PrepareSignalHandle(GDBusConnection* connection,
+ const char* token) {
+ Scoped<char> sender(
+ g_strdup(g_dbus_connection_get_unique_name(connection) + 1));
+ for (int i = 0; sender.get()[i]; ++i) {
+ if (sender.get()[i] == '.') {
+ sender.get()[i] = '_';
+ }
+ }
+
+ const char* handle = g_strconcat(kDesktopRequestObjectPath, "/", sender.get(),
+ "/", token, /*end of varargs*/ nullptr);
+
+ return handle;
+}
+
+void ScreenCastPortal::SessionRequest() {
+ GVariantBuilder builder;
+ Scoped<char> variant_string;
+
+ g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+ variant_string =
+ g_strdup_printf("webrtc_session%d", g_random_int_range(0, G_MAXINT));
+ g_variant_builder_add(&builder, "{sv}", "session_handle_token",
+ g_variant_new_string(variant_string.get()));
+ variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
+ g_variant_builder_add(&builder, "{sv}", "handle_token",
+ g_variant_new_string(variant_string.get()));
+
+ portal_handle_ = PrepareSignalHandle(connection_, variant_string.get());
+ session_request_signal_id_ = SetupRequestResponseSignal(
+ portal_handle_.c_str(), OnSessionRequestResponseSignal);
+
+ RTC_LOG(LS_INFO) << "Screen cast session requested.";
+ g_dbus_proxy_call(proxy_, "CreateSession", g_variant_new("(a{sv})", &builder),
+ G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
+ reinterpret_cast<GAsyncReadyCallback>(OnSessionRequested),
+ this);
+}
+
+// static
+void ScreenCastPortal::OnSessionRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ Scoped<GError> error;
+ Scoped<GVariant> variant(
+ g_dbus_proxy_call_finish(proxy, result, error.receive()));
+ if (!variant) {
+ if (g_error_matches(error.get(), G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ return;
+ RTC_LOG(LS_ERROR) << "Failed to create a screen cast session: "
+ << error->message;
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+ RTC_LOG(LS_INFO) << "Initializing the screen cast session.";
+
+ Scoped<char> handle;
+ g_variant_get_child(variant.get(), 0, "o", &handle);
+ if (!handle) {
+ RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
+ if (that->session_request_signal_id_) {
+ g_dbus_connection_signal_unsubscribe(that->connection_,
+ that->session_request_signal_id_);
+ that->session_request_signal_id_ = 0;
+ }
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ RTC_LOG(LS_INFO) << "Subscribing to the screen cast session.";
+}
+
+// static
+void ScreenCastPortal::OnSessionRequestResponseSignal(
+ GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ RTC_LOG(LS_INFO)
+ << "Received response for the screen cast session subscription.";
+
+ uint32_t portal_response;
+ Scoped<GVariant> response_data;
+ g_variant_get(parameters, "(u@a{sv})", &portal_response,
+ response_data.receive());
+ Scoped<GVariant> session_handle(
+ g_variant_lookup_value(response_data.get(), "session_handle", nullptr));
+ that->session_handle_ = g_variant_dup_string(session_handle.get(), nullptr);
+
+ if (that->session_handle_.empty() || portal_response) {
+ RTC_LOG(LS_ERROR)
+ << "Failed to request the screen cast session subscription.";
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ that->session_closed_signal_id_ = g_dbus_connection_signal_subscribe(
+ that->connection_, kDesktopBusName, kSessionInterfaceName, "Closed",
+ that->session_handle_.c_str(), /*arg0=*/nullptr, G_DBUS_SIGNAL_FLAGS_NONE,
+ OnSessionClosedSignal, that, /*user_data_free_func=*/nullptr);
+
+ that->SourcesRequest();
+}
+
+// static
+void ScreenCastPortal::OnSessionClosedSignal(GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ RTC_LOG(LS_INFO) << "Received closed signal from session.";
+
+ that->notifier_->OnScreenCastSessionClosed();
+
+ // Unsubscribe from the signal and free the session handle to avoid calling
+ // Session::Close from the destructor since it's already closed
+ g_dbus_connection_signal_unsubscribe(that->connection_,
+ that->session_closed_signal_id_);
+}
+
+void ScreenCastPortal::SourcesRequest() {
+ GVariantBuilder builder;
+ Scoped<char> variant_string;
+
+ g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+ // We want to record monitor content.
+ g_variant_builder_add(
+ &builder, "{sv}", "types",
+ g_variant_new_uint32(static_cast<uint32_t>(capture_source_type_)));
+ // We don't want to allow selection of multiple sources.
+ g_variant_builder_add(&builder, "{sv}", "multiple",
+ g_variant_new_boolean(false));
+
+ Scoped<GVariant> variant(
+ g_dbus_proxy_get_cached_property(proxy_, "AvailableCursorModes"));
+ if (variant.get()) {
+ uint32_t modes = 0;
+ g_variant_get(variant.get(), "u", &modes);
+ // Make request only if this mode is advertised by the portal
+ // implementation.
+ if (modes & static_cast<uint32_t>(cursor_mode_)) {
+ g_variant_builder_add(
+ &builder, "{sv}", "cursor_mode",
+ g_variant_new_uint32(static_cast<uint32_t>(cursor_mode_)));
+ }
+ }
+
+ variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
+ g_variant_builder_add(&builder, "{sv}", "handle_token",
+ g_variant_new_string(variant_string.get()));
+
+ sources_handle_ = PrepareSignalHandle(connection_, variant_string.get());
+ sources_request_signal_id_ = SetupRequestResponseSignal(
+ sources_handle_.c_str(), OnSourcesRequestResponseSignal);
+
+ RTC_LOG(LS_INFO) << "Requesting sources from the screen cast session.";
+ g_dbus_proxy_call(
+ proxy_, "SelectSources",
+ g_variant_new("(oa{sv})", session_handle_.c_str(), &builder),
+ G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
+ reinterpret_cast<GAsyncReadyCallback>(OnSourcesRequested), this);
+}
+
+// static
+void ScreenCastPortal::OnSourcesRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ Scoped<GError> error;
+ Scoped<GVariant> variant(
+ g_dbus_proxy_call_finish(proxy, result, error.receive()));
+ if (!variant) {
+ if (g_error_matches(error.get(), G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ return;
+ RTC_LOG(LS_ERROR) << "Failed to request the sources: " << error->message;
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ RTC_LOG(LS_INFO) << "Sources requested from the screen cast session.";
+
+ Scoped<char> handle;
+ g_variant_get_child(variant.get(), 0, "o", handle.receive());
+ if (!handle) {
+ RTC_LOG(LS_ERROR) << "Failed to initialize the screen cast session.";
+ if (that->sources_request_signal_id_) {
+ g_dbus_connection_signal_unsubscribe(that->connection_,
+ that->sources_request_signal_id_);
+ that->sources_request_signal_id_ = 0;
+ }
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ RTC_LOG(LS_INFO) << "Subscribed to sources signal.";
+}
+
+// static
+void ScreenCastPortal::OnSourcesRequestResponseSignal(
+ GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ RTC_LOG(LS_INFO) << "Received sources signal from session.";
+
+ uint32_t portal_response;
+ g_variant_get(parameters, "(u@a{sv})", &portal_response, nullptr);
+ if (portal_response) {
+ RTC_LOG(LS_ERROR)
+ << "Failed to select sources for the screen cast session.";
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ that->StartRequest();
+}
+
+void ScreenCastPortal::StartRequest() {
+ GVariantBuilder builder;
+ Scoped<char> variant_string;
+
+ g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+ variant_string = g_strdup_printf("webrtc%d", g_random_int_range(0, G_MAXINT));
+ g_variant_builder_add(&builder, "{sv}", "handle_token",
+ g_variant_new_string(variant_string.get()));
+
+ start_handle_ = PrepareSignalHandle(connection_, variant_string.get());
+ start_request_signal_id_ = SetupRequestResponseSignal(
+ start_handle_.c_str(), OnStartRequestResponseSignal);
+
+ // "Identifier for the application window", this is Wayland, so not "x11:...".
+ const char parent_window[] = "";
+
+ RTC_LOG(LS_INFO) << "Starting the screen cast session.";
+ g_dbus_proxy_call(proxy_, "Start",
+ g_variant_new("(osa{sv})", session_handle_.c_str(),
+ parent_window, &builder),
+ G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, cancellable_,
+ reinterpret_cast<GAsyncReadyCallback>(OnStartRequested),
+ this);
+}
+
+// static
+void ScreenCastPortal::OnStartRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ Scoped<GError> error;
+ Scoped<GVariant> variant(
+ g_dbus_proxy_call_finish(proxy, result, error.receive()));
+ if (!variant) {
+ if (g_error_matches(error.get(), G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ return;
+ RTC_LOG(LS_ERROR) << "Failed to start the screen cast session: "
+ << error->message;
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ RTC_LOG(LS_INFO) << "Initializing the start of the screen cast session.";
+
+ Scoped<char> handle;
+ g_variant_get_child(variant.get(), 0, "o", handle.receive());
+ if (!handle) {
+ RTC_LOG(LS_ERROR)
+ << "Failed to initialize the start of the screen cast session.";
+ if (that->start_request_signal_id_) {
+ g_dbus_connection_signal_unsubscribe(that->connection_,
+ that->start_request_signal_id_);
+ that->start_request_signal_id_ = 0;
+ }
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ RTC_LOG(LS_INFO) << "Subscribed to the start signal.";
+}
+
+// static
+void ScreenCastPortal::OnStartRequestResponseSignal(GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ RTC_LOG(LS_INFO) << "Start signal received.";
+ uint32_t portal_response;
+ Scoped<GVariant> response_data;
+ Scoped<GVariantIter> iter;
+ g_variant_get(parameters, "(u@a{sv})", &portal_response,
+ response_data.receive());
+ if (portal_response || !response_data) {
+ RTC_LOG(LS_ERROR) << "Failed to start the screen cast session.";
+ that->PortalFailed(static_cast<RequestResponse>(portal_response));
+ return;
+ }
+
+ // Array of PipeWire streams. See
+ // https://github.com/flatpak/xdg-desktop-portal/blob/master/data/org.freedesktop.portal.ScreenCast.xml
+ // documentation for <method name="Start">.
+ if (g_variant_lookup(response_data.get(), "streams", "a(ua{sv})",
+ iter.receive())) {
+ Scoped<GVariant> variant;
+
+ while (g_variant_iter_next(iter.get(), "@(ua{sv})", variant.receive())) {
+ uint32_t stream_id;
+ uint32_t type;
+ Scoped<GVariant> options;
+
+ g_variant_get(variant.get(), "(u@a{sv})", &stream_id, options.receive());
+ RTC_DCHECK(options.get());
+
+ if (g_variant_lookup(options.get(), "source_type", "u", &type)) {
+ that->capture_source_type_ =
+ static_cast<ScreenCastPortal::CaptureSourceType>(type);
+ }
+
+ that->pw_stream_node_id_ = stream_id;
+
+ break;
+ }
+ }
+
+ that->OpenPipeWireRemote();
+}
+
+void ScreenCastPortal::OpenPipeWireRemote() {
+ GVariantBuilder builder;
+ g_variant_builder_init(&builder, G_VARIANT_TYPE_VARDICT);
+
+ RTC_LOG(LS_INFO) << "Opening the PipeWire remote.";
+
+ g_dbus_proxy_call_with_unix_fd_list(
+ proxy_, "OpenPipeWireRemote",
+ g_variant_new("(oa{sv})", session_handle_.c_str(), &builder),
+ G_DBUS_CALL_FLAGS_NONE, /*timeout=*/-1, /*fd_list=*/nullptr, cancellable_,
+ reinterpret_cast<GAsyncReadyCallback>(OnOpenPipeWireRemoteRequested),
+ this);
+}
+
+// static
+void ScreenCastPortal::OnOpenPipeWireRemoteRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data) {
+ ScreenCastPortal* that = static_cast<ScreenCastPortal*>(user_data);
+ RTC_DCHECK(that);
+
+ Scoped<GError> error;
+ Scoped<GUnixFDList> outlist;
+ Scoped<GVariant> variant(g_dbus_proxy_call_with_unix_fd_list_finish(
+ proxy, outlist.receive(), result, error.receive()));
+ if (!variant) {
+ if (g_error_matches(error.get(), G_IO_ERROR, G_IO_ERROR_CANCELLED))
+ return;
+ RTC_LOG(LS_ERROR) << "Failed to open the PipeWire remote: "
+ << error->message;
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ int32_t index;
+ g_variant_get(variant.get(), "(h)", &index);
+
+ that->pw_fd_ = g_unix_fd_list_get(outlist.get(), index, error.receive());
+
+ if (that->pw_fd_ == -1) {
+ RTC_LOG(LS_ERROR) << "Failed to get file descriptor from the list: "
+ << error->message;
+ that->PortalFailed(RequestResponse::kError);
+ return;
+ }
+
+ that->notifier_->OnScreenCastRequestResult(
+ ScreenCastPortal::RequestResponse::kSuccess, that->pw_stream_node_id_,
+ that->pw_fd_);
+}
+
+} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.h b/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.h
new file mode 100644
index 0000000..7da218e
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/screencast_portal.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_SCREENCAST_PORTAL_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_SCREENCAST_PORTAL_H_
+
+#include <gio/gio.h>
+
+#include <string>
+
+#include "absl/types/optional.h"
+
+namespace webrtc {
+
+class ScreenCastPortal {
+ public:
+ // Values are set based on source type property in
+ // xdg-desktop-portal/screencast
+ // https://github.com/flatpak/xdg-desktop-portal/blob/master/data/org.freedesktop.portal.ScreenCast.xml
+ enum class CaptureSourceType : uint32_t {
+ kScreen = 0b01,
+ kWindow = 0b10,
+ kAnyScreenContent = kScreen | kWindow
+ };
+
+ // Values are set based on cursor mode property in
+ // xdg-desktop-portal/screencast
+ // https://github.com/flatpak/xdg-desktop-portal/blob/master/data/org.freedesktop.portal.ScreenCast.xml
+ enum class CursorMode : uint32_t {
+ // Mouse cursor will not be included in any form
+ kHidden = 0b01,
+ // Mouse cursor will be part of the screen content
+ kEmbedded = 0b10,
+ // Mouse cursor information will be send separately in form of metadata
+ kMetadata = 0b100
+ };
+
+ // Interface that must be implemented by the ScreenCastPortal consumers.
+ enum class RequestResponse {
+ // Success, the request is carried out.
+ kSuccess,
+ // The user cancelled the interaction.
+ kUserCancelled,
+ // The user interaction was ended in some other way.
+ kError,
+
+ kMaxValue = kError
+ };
+
+ class PortalNotifier {
+ public:
+ virtual void OnScreenCastRequestResult(RequestResponse result,
+ uint32_t stream_node_id,
+ int fd) = 0;
+ virtual void OnScreenCastSessionClosed() = 0;
+
+ protected:
+ PortalNotifier() = default;
+ virtual ~PortalNotifier() = default;
+ };
+
+ explicit ScreenCastPortal(CaptureSourceType source_type,
+ PortalNotifier* notifier);
+ ~ScreenCastPortal();
+
+ // Initialize ScreenCastPortal with series of DBus calls where we try to
+ // obtain all the required information, like PipeWire file descriptor and
+ // PipeWire stream node ID.
+ //
+ // The observer will return whether the communication with xdg-desktop-portal
+ // was successful and only then you will be able to get all the required
+ // information in order to continue working with PipeWire.
+ void Start();
+
+ private:
+ PortalNotifier* notifier_;
+
+ // A PipeWire stream ID of stream we will be connecting to
+ uint32_t pw_stream_node_id_ = 0;
+ // A file descriptor of PipeWire socket
+ int pw_fd_ = -1;
+
+ CaptureSourceType capture_source_type_ =
+ ScreenCastPortal::CaptureSourceType::kScreen;
+
+ CursorMode cursor_mode_ = ScreenCastPortal::CursorMode::kMetadata;
+
+ GDBusConnection* connection_ = nullptr;
+ GDBusProxy* proxy_ = nullptr;
+ GCancellable* cancellable_ = nullptr;
+ std::string portal_handle_;
+ std::string session_handle_;
+ std::string sources_handle_;
+ std::string start_handle_;
+ guint session_request_signal_id_ = 0;
+ guint sources_request_signal_id_ = 0;
+ guint start_request_signal_id_ = 0;
+ guint session_closed_signal_id_ = 0;
+
+ void PortalFailed(RequestResponse result);
+
+ uint32_t SetupRequestResponseSignal(const char* object_path,
+ GDBusSignalCallback callback);
+
+ static void OnProxyRequested(GObject* object,
+ GAsyncResult* result,
+ gpointer user_data);
+
+ static std::string PrepareSignalHandle(GDBusConnection* connection,
+ const char* token);
+
+ void SessionRequest();
+ static void OnSessionRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data);
+ static void OnSessionRequestResponseSignal(GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data);
+ static void OnSessionClosedSignal(GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data);
+ void SourcesRequest();
+ static void OnSourcesRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data);
+ static void OnSourcesRequestResponseSignal(GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data);
+
+ void StartRequest();
+ static void OnStartRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data);
+ static void OnStartRequestResponseSignal(GDBusConnection* connection,
+ const char* sender_name,
+ const char* object_path,
+ const char* interface_name,
+ const char* signal_name,
+ GVariant* parameters,
+ gpointer user_data);
+
+ void OpenPipeWireRemote();
+ static void OnOpenPipeWireRemoteRequested(GDBusProxy* proxy,
+ GAsyncResult* result,
+ gpointer user_data);
+};
+
+} // namespace webrtc
+
+#endif // MODULES_DESKTOP_CAPTURE_LINUX_SCREENCAST_PORTAL_H_
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.cc b/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.cc
new file mode 100644
index 0000000..c6ba661
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.cc
@@ -0,0 +1,872 @@
+/*
+ * Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/desktop_capture/linux/shared_screencast_stream.h"
+
+#include <libdrm/drm_fourcc.h>
+#include <pipewire/pipewire.h>
+#include <spa/param/format-utils.h>
+#include <spa/param/props.h>
+#include <spa/param/video/format-utils.h>
+#include <spa/utils/result.h>
+#include <sys/mman.h>
+
+#include <string>
+#include <tuple>
+#include <utility>
+#include <vector>
+
+#include "absl/memory/memory.h"
+#include "modules/desktop_capture/linux/egl_dmabuf.h"
+#include "modules/desktop_capture/screen_capture_frame_queue.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/logging.h"
+#include "rtc_base/sanitizer.h"
+#include "rtc_base/string_encode.h"
+#include "rtc_base/string_to_number.h"
+#include "rtc_base/synchronization/mutex.h"
+
+#if defined(WEBRTC_DLOPEN_PIPEWIRE)
+#include "modules/desktop_capture/linux/pipewire_stubs.h"
+using modules_desktop_capture_linux_wayland::InitializeStubs;
+using modules_desktop_capture_linux_wayland::kModuleDrm;
+using modules_desktop_capture_linux_wayland::kModulePipewire;
+using modules_desktop_capture_linux_wayland::StubPathMap;
+#endif // defined(WEBRTC_DLOPEN_PIPEWIRE)
+
+namespace webrtc {
+
+const int kBytesPerPixel = 4;
+
+#if defined(WEBRTC_DLOPEN_PIPEWIRE)
+const char kPipeWireLib[] = "libpipewire-0.3.so.0";
+const char kDrmLib[] = "libdrm.so.2";
+#endif
+
+#if !PW_CHECK_VERSION(0, 3, 29)
+#define SPA_POD_PROP_FLAG_MANDATORY (1u << 3)
+#endif
+#if !PW_CHECK_VERSION(0, 3, 33)
+#define SPA_POD_PROP_FLAG_DONT_FIXATE (1u << 4)
+#endif
+
+constexpr int kCursorBpp = 4;
+constexpr int CursorMetaSize(int w, int h) {
+ return (sizeof(struct spa_meta_cursor) + sizeof(struct spa_meta_bitmap) +
+ w * h * kCursorBpp);
+}
+
+struct PipeWireVersion {
+ int major = 0;
+ int minor = 0;
+ int micro = 0;
+};
+
+constexpr PipeWireVersion kDmaBufMinVersion = {0, 3, 24};
+constexpr PipeWireVersion kDmaBufModifierMinVersion = {0, 3, 33};
+constexpr PipeWireVersion kDropSingleModifierMinVersion = {0, 3, 40};
+
+PipeWireVersion ParsePipeWireVersion(const char* version) {
+ std::vector<std::string> parsed_version;
+ rtc::split(version, '.', &parsed_version);
+
+ if (parsed_version.size() != 3) {
+ return {};
+ }
+
+ absl::optional<int> major = rtc::StringToNumber<int>(parsed_version.at(0));
+ absl::optional<int> minor = rtc::StringToNumber<int>(parsed_version.at(1));
+ absl::optional<int> micro = rtc::StringToNumber<int>(parsed_version.at(2));
+
+ // Return invalid version if we failed to parse it
+ if (!major || !minor || !micro) {
+ return {0, 0, 0};
+ }
+
+ return {major.value(), micro.value(), micro.value()};
+}
+
+spa_pod* BuildFormat(spa_pod_builder* builder,
+ uint32_t format,
+ const std::vector<uint64_t>& modifiers) {
+ bool first = true;
+ spa_pod_frame frames[2];
+ spa_rectangle pw_min_screen_bounds = spa_rectangle{1, 1};
+ spa_rectangle pw_max_screen_bounds = spa_rectangle{UINT32_MAX, UINT32_MAX};
+
+ spa_pod_builder_push_object(builder, &frames[0], SPA_TYPE_OBJECT_Format,
+ SPA_PARAM_EnumFormat);
+ spa_pod_builder_add(builder, SPA_FORMAT_mediaType,
+ SPA_POD_Id(SPA_MEDIA_TYPE_video), 0);
+ spa_pod_builder_add(builder, SPA_FORMAT_mediaSubtype,
+ SPA_POD_Id(SPA_MEDIA_SUBTYPE_raw), 0);
+ spa_pod_builder_add(builder, SPA_FORMAT_VIDEO_format, SPA_POD_Id(format), 0);
+
+ if (modifiers.size()) {
+ if (modifiers.size() == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) {
+ spa_pod_builder_prop(builder, SPA_FORMAT_VIDEO_modifier,
+ SPA_POD_PROP_FLAG_MANDATORY);
+ spa_pod_builder_long(builder, modifiers[0]);
+ } else {
+ spa_pod_builder_prop(
+ builder, SPA_FORMAT_VIDEO_modifier,
+ SPA_POD_PROP_FLAG_MANDATORY | SPA_POD_PROP_FLAG_DONT_FIXATE);
+ spa_pod_builder_push_choice(builder, &frames[1], SPA_CHOICE_Enum, 0);
+
+ // modifiers from the array
+ for (int64_t val : modifiers) {
+ spa_pod_builder_long(builder, val);
+ // Add the first modifier twice as the very first value is the default
+ // option
+ if (first) {
+ spa_pod_builder_long(builder, val);
+ first = false;
+ }
+ }
+ spa_pod_builder_pop(builder, &frames[1]);
+ }
+ }
+
+ spa_pod_builder_add(
+ builder, SPA_FORMAT_VIDEO_size,
+ SPA_POD_CHOICE_RANGE_Rectangle(
+ &pw_min_screen_bounds, &pw_min_screen_bounds, &pw_max_screen_bounds),
+ 0);
+
+ return static_cast<spa_pod*>(spa_pod_builder_pop(builder, &frames[0]));
+}
+
+class PipeWireThreadLoopLock {
+ public:
+ explicit PipeWireThreadLoopLock(pw_thread_loop* loop) : loop_(loop) {
+ pw_thread_loop_lock(loop_);
+ }
+ ~PipeWireThreadLoopLock() { pw_thread_loop_unlock(loop_); }
+
+ private:
+ pw_thread_loop* const loop_;
+};
+
+class ScopedBuf {
+ public:
+ ScopedBuf() {}
+ ScopedBuf(uint8_t* map, int map_size, int fd)
+ : map_(map), map_size_(map_size), fd_(fd) {}
+ ~ScopedBuf() {
+ if (map_ != MAP_FAILED) {
+ munmap(map_, map_size_);
+ }
+ }
+
+ explicit operator bool() { return map_ != MAP_FAILED; }
+
+ void initialize(uint8_t* map, int map_size, int fd) {
+ map_ = map;
+ map_size_ = map_size;
+ fd_ = fd;
+ }
+
+ uint8_t* get() { return map_; }
+
+ protected:
+ uint8_t* map_ = static_cast<uint8_t*>(MAP_FAILED);
+ int map_size_;
+ int fd_;
+};
+
+class SharedScreenCastStreamPrivate {
+ public:
+ SharedScreenCastStreamPrivate();
+ ~SharedScreenCastStreamPrivate();
+
+ bool StartScreenCastStream(uint32_t stream_node_id, int fd);
+ void StopScreenCastStream();
+ std::unique_ptr<DesktopFrame> CaptureFrame();
+ std::unique_ptr<MouseCursor> CaptureCursor();
+ DesktopVector CaptureCursorPosition();
+
+ private:
+ uint32_t pw_stream_node_id_ = 0;
+ int pw_fd_ = -1;
+
+ DesktopSize desktop_size_ = {};
+ DesktopSize video_size_;
+
+ webrtc::Mutex queue_lock_;
+ ScreenCaptureFrameQueue<SharedDesktopFrame> queue_
+ RTC_GUARDED_BY(&queue_lock_);
+ std::unique_ptr<MouseCursor> mouse_cursor_;
+ DesktopVector mouse_cursor_position_ = DesktopVector(-1, -1);
+
+ int64_t modifier_;
+ std::unique_ptr<EglDmaBuf> egl_dmabuf_;
+ // List of modifiers we query as supported by the graphics card/driver
+ std::vector<uint64_t> modifiers_;
+
+ // PipeWire types
+ struct pw_context* pw_context_ = nullptr;
+ struct pw_core* pw_core_ = nullptr;
+ struct pw_stream* pw_stream_ = nullptr;
+ struct pw_thread_loop* pw_main_loop_ = nullptr;
+ struct spa_source* renegotiate_ = nullptr;
+
+ spa_hook spa_core_listener_;
+ spa_hook spa_stream_listener_;
+
+ // A number used to verify all previous methods and the resulting
+ // events have been handled.
+ int server_version_sync_ = 0;
+ // Version of the running PipeWire server we communicate with
+ PipeWireVersion pw_server_version_;
+ // Version of the library used to run our code
+ PipeWireVersion pw_client_version_;
+
+ // event handlers
+ pw_core_events pw_core_events_ = {};
+ pw_stream_events pw_stream_events_ = {};
+
+ struct spa_video_info_raw spa_video_format_;
+
+ void ProcessBuffer(pw_buffer* buffer);
+ void ConvertRGBxToBGRx(uint8_t* frame, uint32_t size);
+
+ // PipeWire callbacks
+ static void OnCoreError(void* data,
+ uint32_t id,
+ int seq,
+ int res,
+ const char* message);
+ static void OnCoreDone(void* user_data, uint32_t id, int seq);
+ static void OnCoreInfo(void* user_data, const pw_core_info* info);
+ static void OnStreamParamChanged(void* data,
+ uint32_t id,
+ const struct spa_pod* format);
+ static void OnStreamStateChanged(void* data,
+ pw_stream_state old_state,
+ pw_stream_state state,
+ const char* error_message);
+ static void OnStreamProcess(void* data);
+ // This will be invoked in case we fail to process DMA-BUF PW buffer using
+ // negotiated stream parameters (modifier). We will drop the modifier we
+ // failed to use and try to use a different one or fallback to shared memory
+ // buffers.
+ static void OnRenegotiateFormat(void* data, uint64_t);
+};
+
+bool operator>=(const PipeWireVersion& current_pw_version,
+ const PipeWireVersion& required_pw_version) {
+ if (!current_pw_version.major && !current_pw_version.minor &&
+ !current_pw_version.micro) {
+ return false;
+ }
+
+ return std::tie(current_pw_version.major, current_pw_version.minor,
+ current_pw_version.micro) >=
+ std::tie(required_pw_version.major, required_pw_version.minor,
+ required_pw_version.micro);
+}
+
+bool operator<=(const PipeWireVersion& current_pw_version,
+ const PipeWireVersion& required_pw_version) {
+ if (!current_pw_version.major && !current_pw_version.minor &&
+ !current_pw_version.micro) {
+ return false;
+ }
+
+ return std::tie(current_pw_version.major, current_pw_version.minor,
+ current_pw_version.micro) <=
+ std::tie(required_pw_version.major, required_pw_version.minor,
+ required_pw_version.micro);
+}
+
+void SharedScreenCastStreamPrivate::OnCoreError(void* data,
+ uint32_t id,
+ int seq,
+ int res,
+ const char* message) {
+ SharedScreenCastStreamPrivate* that =
+ static_cast<SharedScreenCastStreamPrivate*>(data);
+ RTC_DCHECK(that);
+
+ RTC_LOG(LS_ERROR) << "PipeWire remote error: " << message;
+}
+
+void SharedScreenCastStreamPrivate::OnCoreInfo(void* data,
+ const pw_core_info* info) {
+ SharedScreenCastStreamPrivate* stream =
+ static_cast<SharedScreenCastStreamPrivate*>(data);
+ RTC_DCHECK(stream);
+
+ stream->pw_server_version_ = ParsePipeWireVersion(info->version);
+}
+
+void SharedScreenCastStreamPrivate::OnCoreDone(void* data,
+ uint32_t id,
+ int seq) {
+ const SharedScreenCastStreamPrivate* stream =
+ static_cast<SharedScreenCastStreamPrivate*>(data);
+ RTC_DCHECK(stream);
+
+ if (id == PW_ID_CORE && stream->server_version_sync_ == seq) {
+ pw_thread_loop_signal(stream->pw_main_loop_, false);
+ }
+}
+
+// static
+void SharedScreenCastStreamPrivate::OnStreamStateChanged(
+ void* data,
+ pw_stream_state old_state,
+ pw_stream_state state,
+ const char* error_message) {
+ SharedScreenCastStreamPrivate* that =
+ static_cast<SharedScreenCastStreamPrivate*>(data);
+ RTC_DCHECK(that);
+
+ switch (state) {
+ case PW_STREAM_STATE_ERROR:
+ RTC_LOG(LS_ERROR) << "PipeWire stream state error: " << error_message;
+ break;
+ case PW_STREAM_STATE_PAUSED:
+ case PW_STREAM_STATE_STREAMING:
+ case PW_STREAM_STATE_UNCONNECTED:
+ case PW_STREAM_STATE_CONNECTING:
+ break;
+ }
+}
+
+// static
+void SharedScreenCastStreamPrivate::OnStreamParamChanged(
+ void* data,
+ uint32_t id,
+ const struct spa_pod* format) {
+ SharedScreenCastStreamPrivate* that =
+ static_cast<SharedScreenCastStreamPrivate*>(data);
+ RTC_DCHECK(that);
+
+ RTC_LOG(LS_INFO) << "PipeWire stream format changed.";
+ if (!format || id != SPA_PARAM_Format) {
+ return;
+ }
+
+ spa_format_video_raw_parse(format, &that->spa_video_format_);
+
+ auto width = that->spa_video_format_.size.width;
+ auto height = that->spa_video_format_.size.height;
+ auto stride = SPA_ROUND_UP_N(width * kBytesPerPixel, 4);
+ auto size = height * stride;
+
+ that->desktop_size_ = DesktopSize(width, height);
+
+ uint8_t buffer[1024] = {};
+ auto builder = spa_pod_builder{buffer, sizeof(buffer)};
+
+ // Setup buffers and meta header for new format.
+
+ // When SPA_FORMAT_VIDEO_modifier is present we can use DMA-BUFs as
+ // the server announces support for it.
+ // See https://github.com/PipeWire/pipewire/blob/master/doc/dma-buf.dox
+ const bool has_modifier =
+ spa_pod_find_prop(format, nullptr, SPA_FORMAT_VIDEO_modifier);
+ that->modifier_ =
+ has_modifier ? that->spa_video_format_.modifier : DRM_FORMAT_MOD_INVALID;
+ std::vector<const spa_pod*> params;
+ const int buffer_types =
+ has_modifier || (that->pw_server_version_ >= kDmaBufMinVersion)
+ ? (1 << SPA_DATA_DmaBuf) | (1 << SPA_DATA_MemFd) |
+ (1 << SPA_DATA_MemPtr)
+ : (1 << SPA_DATA_MemFd) | (1 << SPA_DATA_MemPtr);
+
+ params.push_back(reinterpret_cast<spa_pod*>(spa_pod_builder_add_object(
+ &builder, SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers,
+ SPA_PARAM_BUFFERS_size, SPA_POD_Int(size), SPA_PARAM_BUFFERS_stride,
+ SPA_POD_Int(stride), SPA_PARAM_BUFFERS_buffers,
+ SPA_POD_CHOICE_RANGE_Int(8, 1, 32), SPA_PARAM_BUFFERS_dataType,
+ SPA_POD_CHOICE_FLAGS_Int(buffer_types))));
+ params.push_back(reinterpret_cast<spa_pod*>(spa_pod_builder_add_object(
+ &builder, SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta, SPA_PARAM_META_type,
+ SPA_POD_Id(SPA_META_Header), SPA_PARAM_META_size,
+ SPA_POD_Int(sizeof(struct spa_meta_header)))));
+ params.push_back(reinterpret_cast<spa_pod*>(spa_pod_builder_add_object(
+ &builder, SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta, SPA_PARAM_META_type,
+ SPA_POD_Id(SPA_META_VideoCrop), SPA_PARAM_META_size,
+ SPA_POD_Int(sizeof(struct spa_meta_region)))));
+ params.push_back(reinterpret_cast<spa_pod*>(spa_pod_builder_add_object(
+ &builder, SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta, SPA_PARAM_META_type,
+ SPA_POD_Id(SPA_META_Cursor), SPA_PARAM_META_size,
+ SPA_POD_CHOICE_RANGE_Int(CursorMetaSize(64, 64), CursorMetaSize(1, 1),
+ CursorMetaSize(384, 384)))));
+ params.push_back(reinterpret_cast<spa_pod*>(spa_pod_builder_add_object(
+ &builder, SPA_TYPE_OBJECT_ParamMeta, SPA_PARAM_Meta, SPA_PARAM_META_type,
+ SPA_POD_Id(SPA_META_VideoDamage), SPA_PARAM_META_size,
+ SPA_POD_CHOICE_RANGE_Int(sizeof(struct spa_meta_region) * 16,
+ sizeof(struct spa_meta_region) * 1,
+ sizeof(struct spa_meta_region) * 16))));
+
+ pw_stream_update_params(that->pw_stream_, params.data(), params.size());
+}
+
+// static
+void SharedScreenCastStreamPrivate::OnStreamProcess(void* data) {
+ SharedScreenCastStreamPrivate* that =
+ static_cast<SharedScreenCastStreamPrivate*>(data);
+ RTC_DCHECK(that);
+
+ struct pw_buffer* next_buffer;
+ struct pw_buffer* buffer = nullptr;
+
+ next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
+ while (next_buffer) {
+ buffer = next_buffer;
+ next_buffer = pw_stream_dequeue_buffer(that->pw_stream_);
+
+ if (next_buffer) {
+ pw_stream_queue_buffer(that->pw_stream_, buffer);
+ }
+ }
+
+ if (!buffer) {
+ return;
+ }
+
+ that->ProcessBuffer(buffer);
+
+ pw_stream_queue_buffer(that->pw_stream_, buffer);
+}
+
+void SharedScreenCastStreamPrivate::OnRenegotiateFormat(void* data, uint64_t) {
+ SharedScreenCastStreamPrivate* that =
+ static_cast<SharedScreenCastStreamPrivate*>(data);
+ RTC_DCHECK(that);
+
+ {
+ PipeWireThreadLoopLock thread_loop_lock(that->pw_main_loop_);
+
+ uint8_t buffer[2048] = {};
+
+ spa_pod_builder builder = spa_pod_builder{buffer, sizeof(buffer)};
+
+ std::vector<const spa_pod*> params;
+
+ for (uint32_t format : {SPA_VIDEO_FORMAT_BGRA, SPA_VIDEO_FORMAT_RGBA,
+ SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_RGBx}) {
+ if (!that->modifiers_.empty()) {
+ params.push_back(BuildFormat(&builder, format, that->modifiers_));
+ }
+ params.push_back(BuildFormat(&builder, format, /*modifiers=*/{}));
+ }
+
+ pw_stream_update_params(that->pw_stream_, params.data(), params.size());
+ }
+}
+
+SharedScreenCastStreamPrivate::SharedScreenCastStreamPrivate() {}
+
+SharedScreenCastStreamPrivate::~SharedScreenCastStreamPrivate() {
+ if (pw_main_loop_) {
+ pw_thread_loop_stop(pw_main_loop_);
+ }
+
+ if (pw_stream_) {
+ pw_stream_destroy(pw_stream_);
+ }
+
+ if (pw_core_) {
+ pw_core_disconnect(pw_core_);
+ }
+
+ if (pw_context_) {
+ pw_context_destroy(pw_context_);
+ }
+
+ if (pw_main_loop_) {
+ pw_thread_loop_destroy(pw_main_loop_);
+ }
+}
+
+bool SharedScreenCastStreamPrivate::StartScreenCastStream(
+ uint32_t stream_node_id,
+ int fd) {
+#if defined(WEBRTC_DLOPEN_PIPEWIRE)
+ StubPathMap paths;
+
+ // Check if the PipeWire and DRM libraries are available.
+ paths[kModulePipewire].push_back(kPipeWireLib);
+ paths[kModuleDrm].push_back(kDrmLib);
+
+ if (!InitializeStubs(paths)) {
+ RTC_LOG(LS_ERROR)
+ << "One of following libraries is missing on your system:\n"
+ << " - PipeWire (" << kPipeWireLib << ")\n"
+ << " - drm (" << kDrmLib << ")";
+ return false;
+ }
+#endif // defined(WEBRTC_DLOPEN_PIPEWIRE)
+ egl_dmabuf_ = std::make_unique<EglDmaBuf>();
+
+ pw_stream_node_id_ = stream_node_id;
+ pw_fd_ = fd;
+
+ pw_init(/*argc=*/nullptr, /*argc=*/nullptr);
+
+ pw_main_loop_ = pw_thread_loop_new("pipewire-main-loop", nullptr);
+
+ pw_context_ =
+ pw_context_new(pw_thread_loop_get_loop(pw_main_loop_), nullptr, 0);
+ if (!pw_context_) {
+ RTC_LOG(LS_ERROR) << "Failed to create PipeWire context";
+ return false;
+ }
+
+ if (pw_thread_loop_start(pw_main_loop_) < 0) {
+ RTC_LOG(LS_ERROR) << "Failed to start main PipeWire loop";
+ return false;
+ }
+
+ pw_client_version_ = ParsePipeWireVersion(pw_get_library_version());
+
+ // Initialize event handlers, remote end and stream-related.
+ pw_core_events_.version = PW_VERSION_CORE_EVENTS;
+ pw_core_events_.info = &OnCoreInfo;
+ pw_core_events_.done = &OnCoreDone;
+ pw_core_events_.error = &OnCoreError;
+
+ pw_stream_events_.version = PW_VERSION_STREAM_EVENTS;
+ pw_stream_events_.state_changed = &OnStreamStateChanged;
+ pw_stream_events_.param_changed = &OnStreamParamChanged;
+ pw_stream_events_.process = &OnStreamProcess;
+
+ {
+ PipeWireThreadLoopLock thread_loop_lock(pw_main_loop_);
+
+ pw_core_ = pw_context_connect_fd(pw_context_, pw_fd_, nullptr, 0);
+ if (!pw_core_) {
+ RTC_LOG(LS_ERROR) << "Failed to connect PipeWire context";
+ return false;
+ }
+
+ pw_core_add_listener(pw_core_, &spa_core_listener_, &pw_core_events_, this);
+
+ // Add an event that can be later invoked by pw_loop_signal_event()
+ renegotiate_ = pw_loop_add_event(pw_thread_loop_get_loop(pw_main_loop_),
+ OnRenegotiateFormat, this);
+
+ server_version_sync_ =
+ pw_core_sync(pw_core_, PW_ID_CORE, server_version_sync_);
+
+ pw_thread_loop_wait(pw_main_loop_);
+
+ pw_properties* reuseProps =
+ pw_properties_new_string("pipewire.client.reuse=1");
+ pw_stream_ = pw_stream_new(pw_core_, "webrtc-consume-stream", reuseProps);
+
+ if (!pw_stream_) {
+ RTC_LOG(LS_ERROR) << "Failed to create PipeWire stream";
+ return false;
+ }
+
+ pw_stream_add_listener(pw_stream_, &spa_stream_listener_,
+ &pw_stream_events_, this);
+ uint8_t buffer[2048] = {};
+
+ spa_pod_builder builder = spa_pod_builder{buffer, sizeof(buffer)};
+
+ std::vector<const spa_pod*> params;
+ const bool has_required_pw_client_version =
+ pw_client_version_ >= kDmaBufModifierMinVersion;
+ const bool has_required_pw_server_version =
+ pw_server_version_ >= kDmaBufModifierMinVersion;
+ for (uint32_t format : {SPA_VIDEO_FORMAT_BGRA, SPA_VIDEO_FORMAT_RGBA,
+ SPA_VIDEO_FORMAT_BGRx, SPA_VIDEO_FORMAT_RGBx}) {
+ // Modifiers can be used with PipeWire >= 0.3.33
+ if (has_required_pw_client_version && has_required_pw_server_version) {
+ modifiers_ = egl_dmabuf_->QueryDmaBufModifiers(format);
+
+ if (!modifiers_.empty()) {
+ params.push_back(BuildFormat(&builder, format, modifiers_));
+ }
+ }
+
+ params.push_back(BuildFormat(&builder, format, /*modifiers=*/{}));
+ }
+
+ if (pw_stream_connect(pw_stream_, PW_DIRECTION_INPUT, pw_stream_node_id_,
+ PW_STREAM_FLAG_AUTOCONNECT, params.data(),
+ params.size()) != 0) {
+ RTC_LOG(LS_ERROR) << "Could not connect receiving stream.";
+ return false;
+ }
+
+ RTC_LOG(LS_INFO) << "PipeWire remote opened.";
+ }
+ return true;
+}
+
+void SharedScreenCastStreamPrivate::StopScreenCastStream() {
+ if (pw_stream_) {
+ pw_stream_disconnect(pw_stream_);
+ }
+}
+
+std::unique_ptr<DesktopFrame> SharedScreenCastStreamPrivate::CaptureFrame() {
+ webrtc::MutexLock lock(&queue_lock_);
+
+ if (!queue_.current_frame()) {
+ return std::unique_ptr<DesktopFrame>{};
+ }
+
+ std::unique_ptr<SharedDesktopFrame> frame = queue_.current_frame()->Share();
+ return std::move(frame);
+}
+
+std::unique_ptr<MouseCursor> SharedScreenCastStreamPrivate::CaptureCursor() {
+ if (!mouse_cursor_) {
+ return nullptr;
+ }
+
+ return std::move(mouse_cursor_);
+}
+
+DesktopVector SharedScreenCastStreamPrivate::CaptureCursorPosition() {
+ return mouse_cursor_position_;
+}
+
+void SharedScreenCastStreamPrivate::ProcessBuffer(pw_buffer* buffer) {
+ spa_buffer* spa_buffer = buffer->buffer;
+ ScopedBuf map;
+ std::unique_ptr<uint8_t[]> src_unique_ptr;
+ uint8_t* src = nullptr;
+
+ // Try to update the mouse cursor first, because it can be the only
+ // information carried by the buffer
+ {
+ const struct spa_meta_cursor* cursor =
+ static_cast<struct spa_meta_cursor*>(spa_buffer_find_meta_data(
+ spa_buffer, SPA_META_Cursor, sizeof(*cursor)));
Wayland screensharing: avoid potential crash when cursor metadata are not set
2022-03-30 10:14:50 +00:00
+ if (cursor && spa_meta_cursor_is_valid(cursor)) {
Backport WebRTC changes to PipeWire/Wayland screen sharing support
2022-02-22 09:01:04 +00:00
+ struct spa_meta_bitmap* bitmap = nullptr;
+
+ if (cursor->bitmap_offset)
+ bitmap =
+ SPA_MEMBER(cursor, cursor->bitmap_offset, struct spa_meta_bitmap);
+
+ if (bitmap && bitmap->size.width > 0 && bitmap->size.height > 0) {
+ const uint8_t* bitmap_data =
+ SPA_MEMBER(bitmap, bitmap->offset, uint8_t);
+ BasicDesktopFrame* mouse_frame = new BasicDesktopFrame(
+ DesktopSize(bitmap->size.width, bitmap->size.height));
+ mouse_frame->CopyPixelsFrom(
+ bitmap_data, bitmap->stride,
+ DesktopRect::MakeWH(bitmap->size.width, bitmap->size.height));
+ mouse_cursor_ = std::make_unique<MouseCursor>(
+ mouse_frame, DesktopVector(cursor->hotspot.x, cursor->hotspot.y));
+ }
+ mouse_cursor_position_.set(cursor->position.x, cursor->position.y);
+ }
+ }
+
+ if (spa_buffer->datas[0].chunk->size == 0) {
+ return;
+ }
+
+ if (spa_buffer->datas[0].type == SPA_DATA_MemFd) {
+ map.initialize(
+ static_cast<uint8_t*>(
+ mmap(nullptr,
+ spa_buffer->datas[0].maxsize + spa_buffer->datas[0].mapoffset,
+ PROT_READ, MAP_PRIVATE, spa_buffer->datas[0].fd, 0)),
+ spa_buffer->datas[0].maxsize + spa_buffer->datas[0].mapoffset,
+ spa_buffer->datas[0].fd);
+
+ if (!map) {
+ RTC_LOG(LS_ERROR) << "Failed to mmap the memory: "
+ << std::strerror(errno);
+ return;
+ }
+
+ src = SPA_MEMBER(map.get(), spa_buffer->datas[0].mapoffset, uint8_t);
+ } else if (spa_buffer->datas[0].type == SPA_DATA_DmaBuf) {
+ const uint n_planes = spa_buffer->n_datas;
+
+ if (!n_planes) {
+ return;
+ }
+
+ std::vector<EglDmaBuf::PlaneData> plane_datas;
+ for (uint32_t i = 0; i < n_planes; ++i) {
+ EglDmaBuf::PlaneData data = {
+ static_cast<int32_t>(spa_buffer->datas[i].fd),
+ static_cast<uint32_t>(spa_buffer->datas[i].chunk->stride),
+ static_cast<uint32_t>(spa_buffer->datas[i].chunk->offset)};
+ plane_datas.push_back(data);
+ }
+
+ src_unique_ptr = egl_dmabuf_->ImageFromDmaBuf(
+ desktop_size_, spa_video_format_.format, plane_datas, modifier_);
+ if (src_unique_ptr) {
+ src = src_unique_ptr.get();
+ } else {
+ RTC_LOG(LS_ERROR) << "Dropping DMA-BUF modifier: " << modifier_
+ << " and trying to renegotiate stream parameters";
+
+ if (pw_client_version_ >= kDropSingleModifierMinVersion) {
+ modifiers_.erase(
+ std::remove(modifiers_.begin(), modifiers_.end(), modifier_),
+ modifiers_.end());
+ } else {
+ modifiers_.clear();
+ }
+
+ pw_loop_signal_event(pw_thread_loop_get_loop(pw_main_loop_),
+ renegotiate_);
+ return;
+ }
+ } else if (spa_buffer->datas[0].type == SPA_DATA_MemPtr) {
+ src = static_cast<uint8_t*>(spa_buffer->datas[0].data);
+ }
+
+ if (!src) {
+ return;
+ }
+ struct spa_meta_region* video_metadata =
+ static_cast<struct spa_meta_region*>(spa_buffer_find_meta_data(
+ spa_buffer, SPA_META_VideoCrop, sizeof(*video_metadata)));
+
+ // Video size from metadata is bigger than an actual video stream size.
+ // The metadata are wrong or we should up-scale the video...in both cases
+ // just quit now.
+ if (video_metadata && (video_metadata->region.size.width >
+ static_cast<uint32_t>(desktop_size_.width()) ||
+ video_metadata->region.size.height >
+ static_cast<uint32_t>(desktop_size_.height()))) {
+ RTC_LOG(LS_ERROR) << "Stream metadata sizes are wrong!";
+ return;
+ }
+
+ // Use video metadata when video size from metadata is set and smaller than
+ // video stream size, so we need to adjust it.
+ bool video_metadata_use = false;
+ const struct spa_rectangle* video_metadata_size =
+ video_metadata ? &video_metadata->region.size : nullptr;
+
+ if (video_metadata_size && video_metadata_size->width != 0 &&
+ video_metadata_size->height != 0 &&
+ (static_cast<int>(video_metadata_size->width) < desktop_size_.width() ||
+ static_cast<int>(video_metadata_size->height) <
+ desktop_size_.height())) {
+ video_metadata_use = true;
+ }
+
+ if (video_metadata_use) {
+ video_size_ =
+ DesktopSize(video_metadata_size->width, video_metadata_size->height);
+ } else {
+ video_size_ = desktop_size_;
+ }
+
+ uint32_t y_offset = video_metadata_use && (video_metadata->region.position.y +
+ video_size_.height() <=
+ desktop_size_.height())
+ ? video_metadata->region.position.y
+ : 0;
+ uint32_t x_offset = video_metadata_use && (video_metadata->region.position.x +
+ video_size_.width() <=
+ desktop_size_.width())
+ ? video_metadata->region.position.x
+ : 0;
+
+ uint8_t* updated_src = src + (spa_buffer->datas[0].chunk->stride * y_offset) +
+ (kBytesPerPixel * x_offset);
+
+ webrtc::MutexLock lock(&queue_lock_);
+
+ // Move to the next frame if the current one is being used and shared
+ if (queue_.current_frame() && queue_.current_frame()->IsShared()) {
+ queue_.MoveToNextFrame();
+ if (queue_.current_frame() && queue_.current_frame()->IsShared()) {
+ RTC_LOG(LS_WARNING)
+ << "Failed to process PipeWire buffer: no available frame";
+ return;
+ }
+ }
+
+ if (!queue_.current_frame() ||
+ !queue_.current_frame()->size().equals(video_size_)) {
+ std::unique_ptr<DesktopFrame> frame(new BasicDesktopFrame(
+ DesktopSize(video_size_.width(), video_size_.height())));
+ queue_.ReplaceCurrentFrame(SharedDesktopFrame::Wrap(std::move(frame)));
+ }
+
+ queue_.current_frame()->CopyPixelsFrom(
+ updated_src,
+ (spa_buffer->datas[0].chunk->stride - (kBytesPerPixel * x_offset)),
+ DesktopRect::MakeWH(video_size_.width(), video_size_.height()));
+
+ if (spa_video_format_.format == SPA_VIDEO_FORMAT_RGBx ||
+ spa_video_format_.format == SPA_VIDEO_FORMAT_RGBA) {
+ uint8_t* tmp_src = queue_.current_frame()->data();
+ for (int i = 0; i < video_size_.height(); ++i) {
+ // If both sides decided to go with the RGBx format we need to convert
+ // it to BGRx to match color format expected by WebRTC.
+ ConvertRGBxToBGRx(tmp_src, queue_.current_frame()->stride());
+ tmp_src += queue_.current_frame()->stride();
+ }
+ }
+}
+
+void SharedScreenCastStreamPrivate::ConvertRGBxToBGRx(uint8_t* frame,
+ uint32_t size) {
+ for (uint32_t i = 0; i < size; i += 4) {
+ uint8_t tempR = frame[i];
+ uint8_t tempB = frame[i + 2];
+ frame[i] = tempB;
+ frame[i + 2] = tempR;
+ }
+}
+
+SharedScreenCastStream::SharedScreenCastStream()
+ : private_(std::make_unique<SharedScreenCastStreamPrivate>()) {}
+
+SharedScreenCastStream::~SharedScreenCastStream() {}
+
+rtc::scoped_refptr<SharedScreenCastStream>
+SharedScreenCastStream::CreateDefault() {
+ // Explicit new, to access non-public constructor.
+ return rtc::scoped_refptr(new SharedScreenCastStream());
+}
+
+bool SharedScreenCastStream::StartScreenCastStream(uint32_t stream_node_id,
+ int fd) {
+ return private_->StartScreenCastStream(stream_node_id, fd);
+}
+
+void SharedScreenCastStream::StopScreenCastStream() {
+ private_->StopScreenCastStream();
+}
+
+std::unique_ptr<DesktopFrame> SharedScreenCastStream::CaptureFrame() {
+ return private_->CaptureFrame();
+}
+
+std::unique_ptr<MouseCursor> SharedScreenCastStream::CaptureCursor() {
+ return private_->CaptureCursor();
+}
+
+absl::optional<DesktopVector> SharedScreenCastStream::CaptureCursorPosition() {
+ DesktopVector position = private_->CaptureCursorPosition();
+
+ // Consider only (x >= 0 and y >= 0) a valid position
+ if (position.x() < 0 || position.y() < 0) {
+ return absl::nullopt;
+ }
+
+ return position;
+}
+
+} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.h b/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.h
new file mode 100644
index 0000000..72411e5
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/linux/shared_screencast_stream.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2022 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_DESKTOP_CAPTURE_LINUX_SHARED_SCREENCAST_STREAM_H_
+#define MODULES_DESKTOP_CAPTURE_LINUX_SHARED_SCREENCAST_STREAM_H_
+
+#include <memory>
+
+#include "absl/types/optional.h"
+#include "api/ref_counted_base.h"
+#include "api/scoped_refptr.h"
+#include "modules/desktop_capture/desktop_frame.h"
+#include "modules/desktop_capture/mouse_cursor.h"
+#include "rtc_base/system/rtc_export.h"
+
+namespace webrtc {
+
+class SharedScreenCastStreamPrivate;
+
+class RTC_EXPORT SharedScreenCastStream
+ : public rtc::RefCountedBase {
+ public:
+ static rtc::scoped_refptr<SharedScreenCastStream> CreateDefault();
+
+ bool StartScreenCastStream(uint32_t stream_node_id, int fd);
+ void StopScreenCastStream();
+
+ // Below functions return the most recent information we get from a
+ // PipeWire buffer on each Process() callback. This assumes that we
+ // managed to successfuly connect to a PipeWire stream provided by the
+ // compositor (based on stream parameters). The cursor data are obtained
+ // from spa_meta_cursor stream metadata and therefore the cursor is not
+ // part of actual screen/window frame.
+
+ // Returns the most recent screen/window frame we obtained from PipeWire
+ // buffer. Will return an empty frame in case we didn't manage to get a frame
+ // from PipeWire buffer.
+ std::unique_ptr<DesktopFrame> CaptureFrame();
+
+ // Returns the most recent mouse cursor image. Will return an nullptr cursor
+ // in case we didn't manage to get a cursor from PipeWire buffer. NOTE: the
+ // cursor image might not be updated on every cursor location change, but
+ // actually only when its shape changes.
+ std::unique_ptr<MouseCursor> CaptureCursor();
+
+ // Returns the most recent mouse cursor position. Will not return a value in
+ // case we didn't manage to get it from PipeWire buffer.
+ absl::optional<DesktopVector> CaptureCursorPosition();
+
+ ~SharedScreenCastStream();
+
+ protected:
+ SharedScreenCastStream();
+
+ private:
+ SharedScreenCastStream(const SharedScreenCastStream&) = delete;
+ SharedScreenCastStream& operator=(const SharedScreenCastStream&) = delete;
+
+ std::unique_ptr<SharedScreenCastStreamPrivate> private_;
+};
+
+} // namespace webrtc
+
+#endif // MODULES_DESKTOP_CAPTURE_LINUX_SHARED_SCREENCAST_STREAM_H_
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc b/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
deleted file mode 100644
index c43a1f1..0000000
--- a/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.cc
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright 2018 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#include "modules/desktop_capture/linux/window_capturer_pipewire.h"
-
-#include <memory>
-
-namespace webrtc {
-
-WindowCapturerPipeWire::WindowCapturerPipeWire()
- : BaseCapturerPipeWire(BaseCapturerPipeWire::CaptureSourceType::kWindow) {}
-WindowCapturerPipeWire::~WindowCapturerPipeWire() {}
-
-// static
-std::unique_ptr<DesktopCapturer>
-WindowCapturerPipeWire::CreateRawWindowCapturer(
- const DesktopCaptureOptions& options) {
- return std::make_unique<WindowCapturerPipeWire>();
-}
-
-} // namespace webrtc
diff --git a/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.h b/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.h
deleted file mode 100644
index 7f184ef..0000000
--- a/third_party/libwebrtc/modules/desktop_capture/linux/window_capturer_pipewire.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright 2018 The WebRTC project authors. All Rights Reserved.
- *
- * Use of this source code is governed by a BSD-style license
- * that can be found in the LICENSE file in the root of the source
- * tree. An additional intellectual property rights grant can be found
- * in the file PATENTS. All contributing project authors may
- * be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef MODULES_DESKTOP_CAPTURE_LINUX_WINDOW_CAPTURER_PIPEWIRE_H_
-#define MODULES_DESKTOP_CAPTURE_LINUX_WINDOW_CAPTURER_PIPEWIRE_H_
-
-#include <memory>
-
-#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
-
-namespace webrtc {
-
-class WindowCapturerPipeWire : public BaseCapturerPipeWire {
- public:
- WindowCapturerPipeWire();
- ~WindowCapturerPipeWire() override;
-
- static std::unique_ptr<DesktopCapturer> CreateRawWindowCapturer(
- const DesktopCaptureOptions& options);
-
- RTC_DISALLOW_COPY_AND_ASSIGN(WindowCapturerPipeWire);
-};
-
-} // namespace webrtc
-
-#endif // MODULES_DESKTOP_CAPTURE_LINUX_WINDOW_CAPTURER_PIPEWIRE_H_
diff --git a/third_party/libwebrtc/modules/desktop_capture/mouse_cursor_monitor_linux.cc b/third_party/libwebrtc/modules/desktop_capture/mouse_cursor_monitor_linux.cc
index e569f6e..3bb51e8 100644
--- a/third_party/libwebrtc/modules/desktop_capture/mouse_cursor_monitor_linux.cc
+++ b/third_party/libwebrtc/modules/desktop_capture/mouse_cursor_monitor_linux.cc
@@ -17,6 +17,10 @@
#include "modules/desktop_capture/linux/mouse_cursor_monitor_x11.h"
#endif // defined(WEBRTC_USE_X11)
+#if defined(WEBRTC_USE_PIPEWIRE)
+#include "modules/desktop_capture/linux/mouse_cursor_monitor_pipewire.h"
+#endif // defined(WEBRTC_USE_PIPEWIRE)
+
namespace webrtc {
// static
@@ -44,6 +48,13 @@ MouseCursorMonitor* MouseCursorMonitor::CreateForScreen(
// static
std::unique_ptr<MouseCursorMonitor> MouseCursorMonitor::Create(
const DesktopCaptureOptions& options) {
+#if defined(WEBRTC_USE_PIPEWIRE)
+ if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland() &&
+ options.screencast_stream()) {
+ return std::make_unique<MouseCursorMonitorPipeWire>(options);
+ }
+#endif // defined(WEBRTC_USE_PIPEWIRE)
+
#if defined(WEBRTC_USE_X11)
return MouseCursorMonitorX11::Create(options);
#else
diff --git a/third_party/libwebrtc/modules/desktop_capture/screen_capturer_linux.cc b/third_party/libwebrtc/modules/desktop_capture/screen_capturer_linux.cc
index 57a2002..b44ae35 100644
--- a/third_party/libwebrtc/modules/desktop_capture/screen_capturer_linux.cc
+++ b/third_party/libwebrtc/modules/desktop_capture/screen_capturer_linux.cc
@@ -14,7 +14,7 @@
#include "modules/desktop_capture/desktop_capturer.h"
#if defined(WEBRTC_USE_PIPEWIRE)
-#include "modules/desktop_capture/linux/screen_capturer_pipewire.h"
+#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
#endif // defined(WEBRTC_USE_PIPEWIRE)
#if defined(WEBRTC_USE_X11)
@@ -28,7 +28,7 @@ std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawScreenCapturer(
const DesktopCaptureOptions& options) {
#if defined(WEBRTC_USE_PIPEWIRE)
if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
- return BaseCapturerPipeWire::CreateRawScreenCapturer(options);
+ return std::make_unique<BaseCapturerPipeWire>(options);
}
#endif // defined(WEBRTC_USE_PIPEWIRE)
diff --git a/third_party/libwebrtc/modules/desktop_capture/window_capturer_linux.cc b/third_party/libwebrtc/modules/desktop_capture/window_capturer_linux.cc
index ed03ba0..3bc6577 100644
--- a/third_party/libwebrtc/modules/desktop_capture/window_capturer_linux.cc
+++ b/third_party/libwebrtc/modules/desktop_capture/window_capturer_linux.cc
@@ -14,7 +14,7 @@
#include "modules/desktop_capture/desktop_capturer.h"
#if defined(WEBRTC_USE_PIPEWIRE)
-#include "modules/desktop_capture/linux/window_capturer_pipewire.h"
+#include "modules/desktop_capture/linux/base_capturer_pipewire.h"
#endif // defined(WEBRTC_USE_PIPEWIRE)
#if defined(WEBRTC_USE_X11)
@@ -28,7 +28,7 @@ std::unique_ptr<DesktopCapturer> DesktopCapturer::CreateRawWindowCapturer(
const DesktopCaptureOptions& options) {
#if defined(WEBRTC_USE_PIPEWIRE)
if (options.allow_pipewire() && DesktopCapturer::IsRunningUnderWayland()) {
- return BaseCapturerPipeWire::CreateRawWindowCapturer(options);
+ return std::make_unique<BaseCapturerPipeWire>(options);
}
#endif // defined(WEBRTC_USE_PIPEWIRE)
diff --git a/third_party/moz.build b/third_party/moz.build
index 1941c11..f804531 100644
--- a/third_party/moz.build
+++ b/third_party/moz.build
@@ -49,6 +49,12 @@ with Files("libwebrtc/**"):
with Files("pipewire/**"):
BUG_COMPONENT = ("Core", "WebRTC")
+with Files("drm/**"):
+ BUG_COMPONENT = ("Core", "WebRTC")
+
+with Files("gbm/**"):
+ BUG_COMPONENT = ("Core", "WebRTC")
+
with Files('rlbox_wasm2c_sandbox/**'):
BUG_COMPONENT = ('Firefox Build System', 'General')
diff --git a/third_party/pipewire/libpipewire/mozpipewire.cpp b/third_party/pipewire/libpipewire/mozpipewire.cpp
index 1ecfc31..fbeeb8e 100644
--- a/third_party/pipewire/libpipewire/mozpipewire.cpp
+++ b/third_party/pipewire/libpipewire/mozpipewire.cpp
@@ -69,11 +69,13 @@ static int (*pw_stream_connect_fn)(struct pw_stream *stream,
enum pw_stream_flags flags,
const struct spa_pod **params,
uint32_t n_params);
+static int (*pw_stream_disconnect_fn)(struct pw_stream *stream);
static struct pw_buffer* (*pw_stream_dequeue_buffer_fn)(struct pw_stream *stream);
static void (*pw_stream_destroy_fn)(struct pw_stream *stream);
static struct pw_stream* (*pw_stream_new_fn)(struct pw_core *core,
const char *name,
struct pw_properties *props);
+
static int (*pw_stream_queue_buffer_fn)(struct pw_stream *stream,
struct pw_buffer *buffer);
static int (*pw_stream_update_params_fn)(struct pw_stream *stream,
@@ -87,7 +89,10 @@ static int (*pw_thread_loop_start_fn)(struct pw_thread_loop *loop);
static void (*pw_thread_loop_stop_fn)(struct pw_thread_loop *loop);
static void (*pw_thread_loop_lock_fn)(struct pw_thread_loop *loop);
static void (*pw_thread_loop_unlock_fn)(struct pw_thread_loop *loop);
+static void (*pw_thread_loop_wait_fn)(struct pw_thread_loop *loop);
+static void (*pw_thread_loop_signal_fn)(struct pw_thread_loop *loop, bool wait_for_accept);
static struct pw_properties* (*pw_properties_new_string_fn)(const char *str);
+static const char* (*pw_get_library_version_fn)();
bool IsPwLibraryLoaded() {
static bool isLoaded =
@@ -99,6 +104,7 @@ bool IsPwLibraryLoaded() {
IS_FUNC_LOADED(pw_init_fn) &&
IS_FUNC_LOADED(pw_stream_add_listener_fn) &&
IS_FUNC_LOADED(pw_stream_connect_fn) &&
+ IS_FUNC_LOADED(pw_stream_disconnect_fn) &&
IS_FUNC_LOADED(pw_stream_dequeue_buffer_fn) &&
IS_FUNC_LOADED(pw_stream_destroy_fn) &&
IS_FUNC_LOADED(pw_stream_new_fn) &&
@@ -111,7 +117,10 @@ bool IsPwLibraryLoaded() {
IS_FUNC_LOADED(pw_thread_loop_stop_fn) &&
IS_FUNC_LOADED(pw_thread_loop_lock_fn) &&
IS_FUNC_LOADED(pw_thread_loop_unlock_fn) &&
- IS_FUNC_LOADED(pw_properties_new_string_fn));
+ IS_FUNC_LOADED(pw_thread_loop_signal_fn) &&
+ IS_FUNC_LOADED(pw_thread_loop_wait_fn) &&
+ IS_FUNC_LOADED(pw_properties_new_string_fn) &&
+ IS_FUNC_LOADED(pw_get_library_version_fn));
return isLoaded;
}
@@ -136,6 +145,7 @@ bool LoadPWLibrary() {
GET_FUNC(pw_init, pwLib);
GET_FUNC(pw_stream_add_listener, pwLib);
GET_FUNC(pw_stream_connect, pwLib);
+ GET_FUNC(pw_stream_disconnect, pwLib);
GET_FUNC(pw_stream_dequeue_buffer, pwLib);
GET_FUNC(pw_stream_destroy, pwLib);
GET_FUNC(pw_stream_new, pwLib);
@@ -148,7 +158,10 @@ bool LoadPWLibrary() {
GET_FUNC(pw_thread_loop_stop, pwLib);
GET_FUNC(pw_thread_loop_lock, pwLib);
GET_FUNC(pw_thread_loop_unlock, pwLib);
+ GET_FUNC(pw_thread_loop_signal, pwLib);
+ GET_FUNC(pw_thread_loop_wait, pwLib);
GET_FUNC(pw_properties_new_string, pwLib);
+ GET_FUNC(pw_get_library_version, pwLib);
}
return IsPwLibraryLoaded();
@@ -242,6 +255,15 @@ pw_stream_connect(struct pw_stream *stream,
params, n_params);
}
+int
+pw_stream_disconnect(struct pw_stream *stream)
+{
+ if (!LoadPWLibrary()) {
+ return 0;
+ }
+ return pw_stream_disconnect_fn(stream);
+}
+
struct pw_buffer *
pw_stream_dequeue_buffer(struct pw_stream *stream)
{
@@ -356,6 +378,23 @@ pw_thread_loop_unlock(struct pw_thread_loop *loop)
return pw_thread_loop_unlock_fn(loop);
}
+void
+pw_thread_loop_signal(struct pw_thread_loop *loop, bool wait_for_accept)
+{
+ if (!LoadPWLibrary()) {
+ return;
+ }
+ return pw_thread_loop_signal_fn(loop, wait_for_accept);
+}
+
+void
+pw_thread_loop_wait(struct pw_thread_loop *loop)
+{
+ if (!LoadPWLibrary()) {
+ return;
+ }
+ return pw_thread_loop_wait_fn(loop);
+}
struct pw_properties *
pw_properties_new_string(const char *str)
@@ -366,3 +405,12 @@ pw_properties_new_string(const char *str)
return pw_properties_new_string_fn(str);
}
+const char*
+pw_get_library_version()
+{
+ if (!LoadPWLibrary()) {
+ return nullptr;
+ }
+ return pw_get_library_version_fn();
+}
+
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