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1/*2 * Copyright (c) 2016 Intel Corporation3 *4 * Permission to use, copy, modify, distribute, and sell this software and its5 * documentation for any purpose is hereby granted without fee, provided that6 * the above copyright notice appear in all copies and that both that copyright7 * notice and this permission notice appear in supporting documentation, and8 * that the name of the copyright holders not be used in advertising or9 * publicity pertaining to distribution of the software without specific,10 * written prior permission. The copyright holders make no representations11 * about the suitability of this software for any purpose. It is provided "as12 * 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 NO16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE20 * 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 031#define DRM_MODE_BLEND_COVERAGE 132#define DRM_MODE_BLEND_PIXEL_NONE 233 34struct drm_device;35struct drm_atomic_state;36struct drm_plane;37 38static inline bool drm_rotation_90_or_270(unsigned int rotation)39{40 return rotation & (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270);41}42 43#define DRM_BLEND_ALPHA_OPAQUE 0xffff44 45int drm_plane_create_alpha_property(struct drm_plane *plane);46int drm_plane_create_rotation_property(struct drm_plane *plane,47 unsigned int rotation,48 unsigned int supported_rotations);49unsigned int drm_rotation_simplify(unsigned int rotation,50 unsigned int supported_rotations);51 52int drm_plane_create_zpos_property(struct drm_plane *plane,53 unsigned int zpos,54 unsigned int min, unsigned int max);55int drm_plane_create_zpos_immutable_property(struct drm_plane *plane,56 unsigned int zpos);57int drm_atomic_normalize_zpos(struct drm_device *dev,58 struct drm_atomic_state *state);59int drm_plane_create_blend_mode_property(struct drm_plane *plane,60 unsigned int supported_modes);61#endif62