Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/drm/drm_blend.h
26278 views
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
#define DRM_MODE_BLEND_PREMULTI		0

31
#define DRM_MODE_BLEND_COVERAGE		1

32
#define DRM_MODE_BLEND_PIXEL_NONE	2

33


34
struct drm_device;

35
struct drm_atomic_state;

36
struct drm_plane;

37


38
static 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		0xffff

44


45
int drm_plane_create_alpha_property(struct drm_plane *plane);

46
int drm_plane_create_rotation_property(struct drm_plane *plane,

47
				       unsigned int rotation,

48
				       unsigned int supported_rotations);

49
unsigned int drm_rotation_simplify(unsigned int rotation,

50
				   unsigned int supported_rotations);

51


52
int drm_plane_create_zpos_property(struct drm_plane *plane,

53
				   unsigned int zpos,

54
				   unsigned int min, unsigned int max);

55
int drm_plane_create_zpos_immutable_property(struct drm_plane *plane,

56
					     unsigned int zpos);

57
int drm_atomic_normalize_zpos(struct drm_device *dev,

58
			      struct drm_atomic_state *state);

59
int drm_plane_create_blend_mode_property(struct drm_plane *plane,

60
					 unsigned int supported_modes);

61
#endif

62


63