gnome-remote-desktop/SOURCES/0001-vnc-pipewire-stream-Handle-stride-mismatch.patch
2021-09-09 17:48:43 +00:00

74 lines
2.3 KiB
Diff

From 78c5bcb181fe2b0b9fc17eea696feac8b504df54 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Thu, 7 May 2020 15:48:22 +0200
Subject: [PATCH] vnc/pipewire-stream: Handle stride mismatch
The VNC server framebuffer assumes a particular stride; but there is no
guarantee that we'll get the same from PipeWire. Handle this gracefully
by coping row by row instead of the whole buffer.
---
src/grd-vnc-pipewire-stream.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/src/grd-vnc-pipewire-stream.c b/src/grd-vnc-pipewire-stream.c
index 88c07be..261292a 100644
--- a/src/grd-vnc-pipewire-stream.c
+++ b/src/grd-vnc-pipewire-stream.c
@@ -187,8 +187,6 @@ on_stream_param_changed (void *user_data,
struct spa_pod_builder pod_builder;
int width;
int height;
- int stride;
- int size;
const struct spa_pod *params[3];
if (!format || id != SPA_PARAM_Format)
@@ -203,14 +201,9 @@ on_stream_param_changed (void *user_data,
grd_session_vnc_queue_resize_framebuffer (stream->session, width, height);
- stride = grd_session_vnc_get_framebuffer_stride (stream->session);
- size = stride * height;
-
params[0] = spa_pod_builder_add_object (
&pod_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, 8),
0);
@@ -319,6 +312,10 @@ process_buffer (GrdVncPipeWireStream *stream,
size_t size;
uint8_t *map;
void *src_data;
+ int src_stride;
+ int dst_stride;
+ int height;
+ int y;
struct spa_meta_cursor *spa_meta_cursor;
g_autofree GrdVncFrame *frame = NULL;
@@ -359,7 +356,17 @@ process_buffer (GrdVncPipeWireStream *stream,
return NULL;
}
- frame->data = g_memdup (src_data, buffer->datas[0].maxsize);
+ src_stride = buffer->datas[0].chunk->stride;
+ dst_stride = grd_session_vnc_get_framebuffer_stride (stream->session);
+ height = stream->spa_format.size.height;
+
+ frame->data = g_malloc (height * dst_stride);
+ for (y = 0; y < height; y++)
+ {
+ memcpy (((uint8_t *) frame->data) + y * dst_stride,
+ ((uint8_t *) src_data) + y * src_stride,
+ dst_stride);
+ }
if (map)
{
--
2.26.2