127 lines
5.3 KiB
C
127 lines
5.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2016 Noralf Trønnes
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*/
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#ifndef __LINUX_DRM_FORMAT_HELPER_H
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#define __LINUX_DRM_FORMAT_HELPER_H
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#include <linux/types.h>
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struct drm_device;
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struct drm_format_info;
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struct drm_framebuffer;
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struct drm_rect;
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struct iosys_map;
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/**
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* struct drm_format_conv_state - Stores format-conversion state
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*
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* DRM helpers for format conversion store temporary state in
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* struct drm_xfrm_buf. The buffer's resources can be reused
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* among multiple conversion operations.
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*
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* All fields are considered private.
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*/
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struct drm_format_conv_state {
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/* private: */
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struct {
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void *mem;
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size_t size;
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bool preallocated;
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} tmp;
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};
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#define __DRM_FORMAT_CONV_STATE_INIT(_mem, _size, _preallocated) { \
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.tmp = { \
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.mem = (_mem), \
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.size = (_size), \
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.preallocated = (_preallocated), \
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} \
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}
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/**
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* DRM_FORMAT_CONV_STATE_INIT - Initializer for struct drm_format_conv_state
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*
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* Initializes an instance of struct drm_format_conv_state to default values.
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*/
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#define DRM_FORMAT_CONV_STATE_INIT \
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__DRM_FORMAT_CONV_STATE_INIT(NULL, 0, false)
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/**
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* DRM_FORMAT_CONV_STATE_INIT_PREALLOCATED - Initializer for struct drm_format_conv_state
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* @_mem: The preallocated memory area
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* @_size: The number of bytes in _mem
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*
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* Initializes an instance of struct drm_format_conv_state to preallocated
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* storage. The caller is responsible for releasing the provided memory range.
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*/
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#define DRM_FORMAT_CONV_STATE_INIT_PREALLOCATED(_mem, _size) \
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__DRM_FORMAT_CONV_STATE_INIT(_mem, _size, true)
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void drm_format_conv_state_init(struct drm_format_conv_state *state);
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void drm_format_conv_state_copy(struct drm_format_conv_state *state,
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const struct drm_format_conv_state *old_state);
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void *drm_format_conv_state_reserve(struct drm_format_conv_state *state,
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size_t new_size, gfp_t flags);
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void drm_format_conv_state_release(struct drm_format_conv_state *state);
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unsigned int drm_fb_clip_offset(unsigned int pitch, const struct drm_format_info *format,
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const struct drm_rect *clip);
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void drm_fb_memcpy(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip);
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void drm_fb_swab(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, bool cached,
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struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_rgb332(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state,
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bool swab);
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void drm_fb_xrgb8888_to_xrgb1555(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_argb1555(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_rgba5551(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_rgb888(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_argb8888(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_xrgb2101010(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip,
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struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_argb2101010(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip,
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struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_gray8(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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int drm_fb_blit(struct iosys_map *dst, const unsigned int *dst_pitch, uint32_t dst_format,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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void drm_fb_xrgb8888_to_mono(struct iosys_map *dst, const unsigned int *dst_pitch,
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const struct iosys_map *src, const struct drm_framebuffer *fb,
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const struct drm_rect *clip, struct drm_format_conv_state *state);
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size_t drm_fb_build_fourcc_list(struct drm_device *dev,
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const u32 *native_fourccs, size_t native_nfourccs,
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u32 *fourccs_out, size_t nfourccs_out);
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#endif /* __LINUX_DRM_FORMAT_HELPER_H */
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