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7320a2cb94
We want to check the display contents in expo tests, so move the two needed functions to a new header file. Rename them to have a video_ prefix. Signed-off-by: Simon Glass <sjg@chromium.org>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2013 Google, Inc.
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*/
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#ifndef __TEST_VIDEO_H
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#define __TEST_VIDEO_H
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#include <stdbool.h>
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struct udevice;
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struct unit_test_state;
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/**
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* video_compress_fb() - Compress the frame buffer and return its size
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*
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* We want to write tests which perform operations on the video console and
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* check that the frame buffer ends up with the correct contents. But it is
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* painful to store 'known good' images for comparison with the frame
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* buffer. As an alternative, we can compress the frame buffer and check the
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* size of the compressed data. This provides a pretty good level of
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* certainty and the resulting tests need only check a single value.
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*
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* @uts: Test state
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* @dev: Video device
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* @use_copy: Use copy frame buffer if available
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* Return: compressed size of the frame buffer, or -ve on error
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*/
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int video_compress_fb(struct unit_test_state *uts, struct udevice *dev,
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bool use_copy);
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/**
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* check_copy_frame_buffer() - Compare main frame buffer to copy
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*
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* If the copy frame buffer is enabled, this compares it to the main
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* frame buffer. Normally they should have the same contents after a
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* sync.
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*
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* @uts: Test state
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* @dev: Video device
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* Return: 0, or -ve on error
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*/
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int video_check_copy_fb(struct unit_test_state *uts, struct udevice *dev);
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#endif
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