wayvnc/include/damage.h

/*
 * Copyright (c) 2020 Andri Yngvason
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
 * 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.
 */

#pragma once

#include <stdint.h>
#include <stdio.h>

struct pixman_region16;
struct pixman_box16;

void damage_check_row(uint8_t* dst, const uint8_t* src, uint32_t width);

void damage_check_tile_row(struct pixman_region16* damage,
                           uint8_t* row_buffer, const uint8_t* buffer,
			   uint32_t y_start, uint32_t width, uint32_t height);

void damage_check(struct pixman_region16* damage, const uint8_t* buffer,
                  uint32_t width, uint32_t height, struct pixman_box16* hint);

int damage_check_async(uint8_t* buffer, uint32_t width, uint32_t height,
                       struct pixman_box16* hint,
                       void (*on_done)(struct pixman_region16*, void*),
                       void* userdata);

void damage_dump(FILE* stream, struct pixman_region16* damage,
                 uint32_t width, uint32_t height, uint32_t tile_size);