| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | struct drm_device; |
| 31 | struct drm_atomic_state; |
| 32 | struct drm_plane; |
| 33 | |
| 34 | static inline bool drm_rotation_90_or_270(unsigned int rotation) |
| 35 | { |
| 36 | return rotation & (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270); |
| 37 | } |
| 38 | |
| 39 | #define DRM_BLEND_ALPHA_OPAQUE 0xffff |
| 40 | |
| 41 | int drm_plane_create_alpha_property(struct drm_plane *plane); |
| 42 | int drm_plane_create_rotation_property(struct drm_plane *plane, |
| 43 | unsigned int rotation, |
| 44 | unsigned int supported_rotations); |
| 45 | unsigned int drm_rotation_simplify(unsigned int rotation, |
| 46 | unsigned int supported_rotations); |
| 47 | |
| 48 | int drm_plane_create_zpos_property(struct drm_plane *plane, |
| 49 | unsigned int zpos, |
| 50 | unsigned int min, unsigned int max); |
| 51 | int drm_plane_create_zpos_immutable_property(struct drm_plane *plane, |
| 52 | unsigned int zpos); |
| 53 | int drm_atomic_normalize_zpos(struct drm_device *dev, |
| 54 | struct drm_atomic_state *state); |
| 55 | #endif |