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d3b21767 LS |
1 | /* SPDX-License-Identifier: GPL-2.0 OR MIT */ |
2 | /************************************************************************** | |
3 | * | |
4 | * Copyright (c) 2018 VMware, Inc., Palo Alto, CA., USA | |
5 | * All Rights Reserved. | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a | |
8 | * copy of this software and associated documentation files (the | |
9 | * "Software"), to deal in the Software without restriction, including | |
10 | * without limitation the rights to use, copy, modify, merge, publish, | |
11 | * distribute, sub license, and/or sell copies of the Software, and to | |
12 | * permit persons to whom the Software is furnished to do so, subject to | |
13 | * the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice (including the | |
16 | * next paragraph) shall be included in all copies or substantial portions | |
17 | * of the Software. | |
18 | * | |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
21 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
22 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
23 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
24 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
25 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
26 | * | |
27 | * Authors: | |
28 | * Deepak Rawat <drawat@vmware.com> | |
29 | * | |
30 | **************************************************************************/ | |
31 | ||
32 | #ifndef DRM_DAMAGE_HELPER_H_ | |
33 | #define DRM_DAMAGE_HELPER_H_ | |
34 | ||
35 | #include <drm/drm_atomic_helper.h> | |
36 | ||
d2780b1f DR |
37 | /** |
38 | * drm_atomic_for_each_plane_damage - Iterator macro for plane damage. | |
39 | * @iter: The iterator to advance. | |
40 | * @rect: Return a rectangle in fb coordinate clipped to plane src. | |
41 | * | |
42 | * Note that if the first call to iterator macro return false then no need to do | |
43 | * plane update. Iterator will return full plane src when damage is not passed | |
44 | * by user-space. | |
45 | */ | |
46 | #define drm_atomic_for_each_plane_damage(iter, rect) \ | |
47 | while (drm_atomic_helper_damage_iter_next(iter, rect)) | |
48 | ||
49 | /** | |
50 | * struct drm_atomic_helper_damage_iter - Closure structure for damage iterator. | |
51 | * | |
52 | * This structure tracks state needed to walk the list of plane damage clips. | |
53 | */ | |
54 | struct drm_atomic_helper_damage_iter { | |
55 | /* private: Plane src in whole number. */ | |
56 | struct drm_rect plane_src; | |
57 | /* private: Rectangles in plane damage blob. */ | |
58 | const struct drm_rect *clips; | |
59 | /* private: Number of rectangles in plane damage blob. */ | |
60 | uint32_t num_clips; | |
61 | /* private: Current clip iterator is advancing on. */ | |
62 | uint32_t curr_clip; | |
63 | /* private: Whether need full plane update. */ | |
64 | bool full_update; | |
65 | }; | |
66 | ||
d9778b40 DR |
67 | void drm_atomic_helper_check_plane_damage(struct drm_atomic_state *state, |
68 | struct drm_plane_state *plane_state); | |
b9fc5e01 RC |
69 | int drm_atomic_helper_dirtyfb(struct drm_framebuffer *fb, |
70 | struct drm_file *file_priv, unsigned int flags, | |
71 | unsigned int color, struct drm_clip_rect *clips, | |
72 | unsigned int num_clips); | |
d2780b1f DR |
73 | void |
74 | drm_atomic_helper_damage_iter_init(struct drm_atomic_helper_damage_iter *iter, | |
75 | const struct drm_plane_state *old_state, | |
76 | const struct drm_plane_state *new_state); | |
77 | bool | |
78 | drm_atomic_helper_damage_iter_next(struct drm_atomic_helper_damage_iter *iter, | |
79 | struct drm_rect *rect); | |
255f6fe7 NT |
80 | bool drm_atomic_helper_damage_merged(const struct drm_plane_state *old_state, |
81 | struct drm_plane_state *state, | |
82 | struct drm_rect *rect); | |
d2780b1f | 83 | |
d3b21767 | 84 | #endif |