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73 lines
2.8 KiB
73 lines
2.8 KiB
/* |
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* Copyright (c) 2016 Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and its |
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* documentation for any purpose is hereby granted without fee, provided that |
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* the above copyright notice appear in all copies and that both that copyright |
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* notice and this permission notice appear in supporting documentation, and |
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* that the name of the copyright holders not be used in advertising or |
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* publicity pertaining to distribution of the software without specific, |
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* written prior permission. The copyright holders make no representations |
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* about the suitability of this software for any purpose. It is provided "as |
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* is" without express or implied warranty. |
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* |
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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* OF THIS SOFTWARE. |
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*/ |
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#ifndef __DRM_FOURCC_H__ |
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#define __DRM_FOURCC_H__ |
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#include <linux/types.h> |
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#include <uapi/drm/drm_fourcc.h> |
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struct drm_device; |
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struct drm_mode_fb_cmd2; |
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/** |
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* struct drm_format_info - information about a DRM format |
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* @format: 4CC format identifier (DRM_FORMAT_*) |
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* @depth: Color depth (number of bits per pixel excluding padding bits), |
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* valid for a subset of RGB formats only. This is a legacy field, do not |
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* use in new code and set to 0 for new formats. |
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* @num_planes: Number of color planes (1 to 3) |
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* @cpp: Number of bytes per pixel (per plane) |
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* @hsub: Horizontal chroma subsampling factor |
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* @vsub: Vertical chroma subsampling factor |
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*/ |
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struct drm_format_info { |
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u32 format; |
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u8 depth; |
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u8 num_planes; |
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u8 cpp[3]; |
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u8 hsub; |
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u8 vsub; |
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}; |
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/** |
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* struct drm_format_name_buf - name of a DRM format |
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* @str: string buffer containing the format name |
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*/ |
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struct drm_format_name_buf { |
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char str[32]; |
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}; |
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const struct drm_format_info *__drm_format_info(u32 format); |
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const struct drm_format_info *drm_format_info(u32 format); |
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const struct drm_format_info * |
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drm_get_format_info(struct drm_device *dev, |
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const struct drm_mode_fb_cmd2 *mode_cmd); |
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uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth); |
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int drm_format_num_planes(uint32_t format); |
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int drm_format_plane_cpp(uint32_t format, int plane); |
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int drm_format_horz_chroma_subsampling(uint32_t format); |
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int drm_format_vert_chroma_subsampling(uint32_t format); |
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int drm_format_plane_width(int width, uint32_t format, int plane); |
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int drm_format_plane_height(int height, uint32_t format, int plane); |
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const char *drm_get_format_name(uint32_t format, struct drm_format_name_buf *buf); |
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#endif /* __DRM_FOURCC_H__ */
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