drm_blend.h
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/*
* 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>
struct drm_device;
struct drm_atomic_state;
/*
* Rotation property bits. DRM_ROTATE_<degrees> rotates the image by the
* specified amount in degrees in counter clockwise direction. DRM_REFLECT_X and
* DRM_REFLECT_Y reflects the image along the specified axis prior to rotation
*
* WARNING: These defines are UABI since they're exposed in the rotation
* property.
*/
#define DRM_ROTATE_0 BIT(0)
#define DRM_ROTATE_90 BIT(1)
#define DRM_ROTATE_180 BIT(2)
#define DRM_ROTATE_270 BIT(3)
#define DRM_ROTATE_MASK (DRM_ROTATE_0 | DRM_ROTATE_90 | \
DRM_ROTATE_180 | DRM_ROTATE_270)
#define DRM_REFLECT_X BIT(4)
#define DRM_REFLECT_Y BIT(5)
#define DRM_REFLECT_MASK (DRM_REFLECT_X | DRM_REFLECT_Y)
struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
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