| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and its |
| * documentation for any purpose is hereby granted without fee, provided that |
| * the above copyright notice appear in all copies and that both that copyright |
| * notice and this permission notice appear in supporting documentation, and |
| * that the name of the copyright holders not be used in advertising or |
| * publicity pertaining to distribution of the software without specific, |
| * written prior permission. The copyright holders make no representations |
| * about the suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| * OF THIS SOFTWARE. |
| */ |
| |
| #ifndef __DRM_BLEND_H__ |
| #define __DRM_BLEND_H__ |
| |
| #include <linux/list.h> |
| #include <linux/ctype.h> |
| #include <drm/drm_mode.h> |
| |
| struct drm_device; |
| struct drm_atomic_state; |
| struct drm_plane; |
| |
| static inline bool drm_rotation_90_or_270(unsigned int rotation) |
| { |
| return rotation & (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270); |
| } |
| |
| #define DRM_BLEND_ALPHA_OPAQUE 0xffff |
| |
| int drm_plane_create_alpha_property(struct drm_plane *plane); |
| int drm_plane_create_rotation_property(struct drm_plane *plane, |
| unsigned int rotation, |
| unsigned int supported_rotations); |
| unsigned int drm_rotation_simplify(unsigned int rotation, |
| unsigned int supported_rotations); |
| |
| int drm_plane_create_zpos_property(struct drm_plane *plane, |
| unsigned int zpos, |
| unsigned int min, unsigned int max); |
| int drm_plane_create_zpos_immutable_property(struct drm_plane *plane, |
| unsigned int zpos); |
| int drm_atomic_normalize_zpos(struct drm_device *dev, |
| struct drm_atomic_state *state); |
| #endif |