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102 lines
4.0 KiB
102 lines
4.0 KiB
/* SPDX-License-Identifier: GPL-2.0 OR MIT */ |
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/************************************************************************** |
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* |
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* Copyright (c) 2018 VMware, Inc., Palo Alto, CA., USA |
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* All Rights Reserved. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a |
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* copy of this software and associated documentation files (the |
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* "Software"), to deal in the Software without restriction, including |
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* without limitation the rights to use, copy, modify, merge, publish, |
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* distribute, sub license, and/or sell copies of the Software, and to |
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* permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice (including the |
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* next paragraph) shall be included in all copies or substantial portions |
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* of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
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* USE OR OTHER DEALINGS IN THE SOFTWARE. |
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* |
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* Authors: |
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* Deepak Rawat <[email protected]> |
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* |
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**************************************************************************/ |
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#ifndef DRM_DAMAGE_HELPER_H_ |
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#define DRM_DAMAGE_HELPER_H_ |
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#include <drm/drm_atomic_helper.h> |
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/** |
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* drm_atomic_for_each_plane_damage - Iterator macro for plane damage. |
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* @iter: The iterator to advance. |
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* @rect: Return a rectangle in fb coordinate clipped to plane src. |
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* |
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* Note that if the first call to iterator macro return false then no need to do |
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* plane update. Iterator will return full plane src when damage is not passed |
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* by user-space. |
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*/ |
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#define drm_atomic_for_each_plane_damage(iter, rect) \ |
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while (drm_atomic_helper_damage_iter_next(iter, rect)) |
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/** |
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* struct drm_atomic_helper_damage_iter - Closure structure for damage iterator. |
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* |
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* This structure tracks state needed to walk the list of plane damage clips. |
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*/ |
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struct drm_atomic_helper_damage_iter { |
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/* private: Plane src in whole number. */ |
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struct drm_rect plane_src; |
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/* private: Rectangles in plane damage blob. */ |
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const struct drm_rect *clips; |
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/* private: Number of rectangles in plane damage blob. */ |
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uint32_t num_clips; |
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/* private: Current clip iterator is advancing on. */ |
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uint32_t curr_clip; |
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/* private: Whether need full plane update. */ |
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bool full_update; |
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}; |
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void drm_plane_enable_fb_damage_clips(struct drm_plane *plane); |
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void drm_atomic_helper_check_plane_damage(struct drm_atomic_state *state, |
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struct drm_plane_state *plane_state); |
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int drm_atomic_helper_dirtyfb(struct drm_framebuffer *fb, |
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struct drm_file *file_priv, unsigned int flags, |
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unsigned int color, struct drm_clip_rect *clips, |
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unsigned int num_clips); |
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void |
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drm_atomic_helper_damage_iter_init(struct drm_atomic_helper_damage_iter *iter, |
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const struct drm_plane_state *old_state, |
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const struct drm_plane_state *new_state); |
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bool |
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drm_atomic_helper_damage_iter_next(struct drm_atomic_helper_damage_iter *iter, |
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struct drm_rect *rect); |
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bool drm_atomic_helper_damage_merged(const struct drm_plane_state *old_state, |
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struct drm_plane_state *state, |
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struct drm_rect *rect); |
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/** |
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* drm_helper_get_plane_damage_clips - Returns damage clips in &drm_rect. |
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* @state: Plane state. |
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* |
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* Returns plane damage rectangles in internal &drm_rect. Currently &drm_rect |
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* can be obtained by simply typecasting &drm_mode_rect. This is because both |
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* are signed 32 and during drm_atomic_check_only() it is verified that damage |
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* clips are inside fb. |
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* |
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* Return: Clips in plane fb_damage_clips blob property. |
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*/ |
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static inline struct drm_rect * |
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drm_helper_get_plane_damage_clips(const struct drm_plane_state *state) |
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{ |
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return (struct drm_rect *)drm_plane_get_damage_clips(state); |
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} |
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#endif
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