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drm
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drm_blend.h

drm_blend.h 2.4 KB
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  1. /*
    2. 

  2.  * Copyright (c) 2016 Intel Corporation
    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. 

  23. #ifndef __DRM_BLEND_H__
    24. 

  24. #define __DRM_BLEND_H__
    25. 

  25. 

  26. #include <linux/list.h>
    27. 

  27. #include <linux/ctype.h>
    28. 

  28. #include <drm/drm_mode.h>
    29. 

  29. 

  30. #define DRM_MODE_BLEND_PREMULTI		0
    31. 

  31. #define DRM_MODE_BLEND_COVERAGE		1
    32. 

  32. #define DRM_MODE_BLEND_PIXEL_NONE	2
    33. 

  33. 

  34. struct drm_device;
    35. 

  35. struct drm_atomic_state;
    36. 

  36. struct drm_plane;
    37. 

  37. 

  38. static inline bool drm_rotation_90_or_270(unsigned int rotation)
    39. 

  39. {
    40. 

  40. 	return rotation & (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270);
    41. 

  41. }
    42. 

  42. 

  43. #define DRM_BLEND_ALPHA_OPAQUE		0xffff
    44. 

  44. 

  45. int drm_plane_create_alpha_property(struct drm_plane *plane);
    46. 

  46. int drm_plane_create_rotation_property(struct drm_plane *plane,
    47. 

  47. 				       unsigned int rotation,
    48. 

  48. 				       unsigned int supported_rotations);
    49. 

  49. unsigned int drm_rotation_simplify(unsigned int rotation,
    50. 

  50. 				   unsigned int supported_rotations);
    51. 

  51. 

  52. int drm_plane_create_zpos_property(struct drm_plane *plane,
    53. 

  53. 				   unsigned int zpos,
    54. 

  54. 				   unsigned int min, unsigned int max);
    55. 

  55. int drm_plane_create_zpos_immutable_property(struct drm_plane *plane,
    56. 

  56. 					     unsigned int zpos);
    57. 

  57. int drm_atomic_normalize_zpos(struct drm_device *dev,
    58. 

  58. 			      struct drm_atomic_state *state);
    59. 

  59. int drm_plane_create_blend_mode_property(struct drm_plane *plane,
    60. 

  60. 					 unsigned int supported_modes);
    61. 

  61. #endif
    62.