Line data    Source code

       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             : 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