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board-support
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linux-4.9.59+gitAUTOINC+a75d8e9305-ga75d8e9305
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include
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drm
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drm_fourcc.h

drm_fourcc.h 2.6 KB
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  1. /*
    2. 

  2.  * Copyright (c) 2016 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
    3. 

  3.  *
    4. 

  4.  * Permission to use, copy, modify, distribute, and sell this software and its
    5. 

  5.  * documentation for any purpose is hereby granted without fee, provided that
    6. 

  6.  * the above copyright notice appear in all copies and that both that copyright
    7. 

  7.  * notice and this permission notice appear in supporting documentation, and
    8. 

  8.  * that the name of the copyright holders not be used in advertising or
    9. 

  9.  * publicity pertaining to distribution of the software without specific,
    10. 

  10.  * written prior permission.  The copyright holders make no representations
    11. 

  11.  * about the suitability of this software for any purpose.  It is provided "as
    12. 

  12.  * is" without express or implied warranty.
    13. 

  13.  *
    14. 

  14.  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
    15. 

  15.  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
    16. 

  16.  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
    17. 

  17.  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
    18. 

  18.  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
    19. 

  19.  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
    20. 

  20.  * OF THIS SOFTWARE.
    21. 

  21.  */
    22. 

  22. #ifndef __DRM_FOURCC_H__
    23. 

  23. #define __DRM_FOURCC_H__
    24. 

  24. 

  25. #include <linux/types.h>
    26. 

  26. #include <uapi/drm/drm_fourcc.h>
    27. 

  27. 

  28. /**
    29. 

  29.  * struct drm_format_info - information about a DRM format
    30. 

  30.  * @format: 4CC format identifier (DRM_FORMAT_*)
    31. 

  31.  * @depth: Color depth (number of bits per pixel excluding padding bits),
    32. 

  32.  *	valid for a subset of RGB formats only. This is a legacy field, do not
    33. 

  33.  *	use in new code and set to 0 for new formats.
    34. 

  34.  * @num_planes: Number of color planes (1 to 3)
    35. 

  35.  * @cpp: Number of bytes per pixel (per plane)
    36. 

  36.  * @hsub: Horizontal chroma subsampling factor
    37. 

  37.  * @vsub: Vertical chroma subsampling factor
    38. 

  38.  */
    39. 

  39. struct drm_format_info {
    40. 

  40. 	u32 format;
    41. 

  41. 	u8 depth;
    42. 

  42. 	u8 num_planes;
    43. 

  43. 	u8 cpp[3];
    44. 

  44. 	u8 hsub;
    45. 

  45. 	u8 vsub;
    46. 

  46. };
    47. 

  47. 

  48. const struct drm_format_info *__drm_format_info(u32 format);
    49. 

  49. const struct drm_format_info *drm_format_info(u32 format);
    50. 

  50. uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
    51. 

  51. void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, int *bpp);
    52. 

  52. int drm_format_num_planes(uint32_t format);
    53. 

  53. int drm_format_plane_cpp(uint32_t format, int plane);
    54. 

  54. int drm_format_horz_chroma_subsampling(uint32_t format);
    55. 

  55. int drm_format_vert_chroma_subsampling(uint32_t format);
    56. 

  56. int drm_format_plane_width(int width, uint32_t format, int plane);
    57. 

  57. int drm_format_plane_height(int height, uint32_t format, int plane);
    58. 

  58. char *drm_get_format_name(uint32_t format) __malloc;
    59. 

  59. 

  60. #endif /* __DRM_FOURCC_H__ */
    61.