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       1                 :            : /*
       2                 :            :  * Copyright (c) 2016 Intel Corporation
       3                 :            :  *
       4                 :            :  * Permission to use, copy, modify, distribute, and sell this software and its
       5                 :            :  * documentation for any purpose is hereby granted without fee, provided that
       6                 :            :  * the above copyright notice appear in all copies and that both that copyright
       7                 :            :  * notice and this permission notice appear in supporting documentation, and
       8                 :            :  * that the name of the copyright holders not be used in advertising or
       9                 :            :  * publicity pertaining to distribution of the software without specific,
      10                 :            :  * written prior permission.  The copyright holders make no representations
      11                 :            :  * about the suitability of this software for any purpose.  It is provided "as
      12                 :            :  * is" without express or implied warranty.
      13                 :            :  *
      14                 :            :  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
      15                 :            :  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
      16                 :            :  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
      17                 :            :  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
      18                 :            :  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
      19                 :            :  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
      20                 :            :  * OF THIS SOFTWARE.
      21                 :            :  */
      22                 :            : 
      23                 :            : #ifndef __DRM_BLEND_H__
      24                 :            : #define __DRM_BLEND_H__
      25                 :            : 
      26                 :            : #include <linux/list.h>
      27                 :            : #include <linux/ctype.h>
      28                 :            : #include <drm/drm_mode.h>
      29                 :            : 
      30                 :            : #define DRM_MODE_BLEND_PREMULTI         0
      31                 :            : #define DRM_MODE_BLEND_COVERAGE         1
      32                 :            : #define DRM_MODE_BLEND_PIXEL_NONE       2
      33                 :            : 
      34                 :            : struct drm_device;
      35                 :            : struct drm_atomic_state;
      36                 :            : struct drm_plane;
      37                 :            : 
      38                 :          0 : static inline bool drm_rotation_90_or_270(unsigned int rotation)
      39                 :            : {
      40   [ #  #  #  #  :          0 :         return rotation & (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270);
          #  #  #  #  #  
          #  #  #  #  #  
          #  #  #  #  #  
          #  #  #  #  #  
                   #  # ]
      41                 :            : }
      42                 :            : 
      43                 :            : #define DRM_BLEND_ALPHA_OPAQUE          0xffff
      44                 :            : 
      45                 :            : int drm_plane_create_alpha_property(struct drm_plane *plane);
      46                 :            : int drm_plane_create_rotation_property(struct drm_plane *plane,
      47                 :            :                                        unsigned int rotation,
      48                 :            :                                        unsigned int supported_rotations);
      49                 :            : unsigned int drm_rotation_simplify(unsigned int rotation,
      50                 :            :                                    unsigned int supported_rotations);
      51                 :            : 
      52                 :            : int drm_plane_create_zpos_property(struct drm_plane *plane,
      53                 :            :                                    unsigned int zpos,
      54                 :            :                                    unsigned int min, unsigned int max);
      55                 :            : int drm_plane_create_zpos_immutable_property(struct drm_plane *plane,
      56                 :            :                                              unsigned int zpos);
      57                 :            : int drm_atomic_normalize_zpos(struct drm_device *dev,
      58                 :            :                               struct drm_atomic_state *state);
      59                 :            : int drm_plane_create_blend_mode_property(struct drm_plane *plane,
      60                 :            :                                          unsigned int supported_modes);
      61                 :            : #endif