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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2013 Google, Inc.
*/
#ifndef __TEST_VIDEO_H
#define __TEST_VIDEO_H
#include <stdbool.h>
struct udevice;
struct unit_test_state;
/**
* video_compress_fb() - Compress the frame buffer and return its size
*
* We want to write tests which perform operations on the video console and
* check that the frame buffer ends up with the correct contents. But it is
* painful to store 'known good' images for comparison with the frame
* buffer. As an alternative, we can compress the frame buffer and check the
* size of the compressed data. This provides a pretty good level of
* certainty and the resulting tests need only check a single value.
*
* @uts: Test state
* @dev: Video device
* @use_copy: Use copy frame buffer if available
* Return: compressed size of the frame buffer, or -ve on error
*/
int video_compress_fb(struct unit_test_state *uts, struct udevice *dev,
bool use_copy);
/**
* check_copy_frame_buffer() - Compare main frame buffer to copy
*
* If the copy frame buffer is enabled, this compares it to the main
* frame buffer. Normally they should have the same contents after a
* sync.
*
* @uts: Test state
* @dev: Video device
* Return: 0, or -ve on error
*/
int video_check_copy_fb(struct unit_test_state *uts, struct udevice *dev);
#endif
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