ae0e28265e
Some drivers duplicate the logic to create a property to store a per-plane alpha. This is especially useful if we ever want to support extra protocols for Wayland like: https://lists.freedesktop.org/archives/wayland-devel/2017-August/034741.html Let's create a helper in order to move that to the core. Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/6e1ce0db78fcfc407e94913c64819e65109d034d.1523432341.git-series.maxime.ripard@bootlin.com
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/*
|
|
* 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
|