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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/modules/desktop_capture/differ_block.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/modules/desktop_capture/differ_block.h')
-rw-r--r-- | third_party/libwebrtc/modules/desktop_capture/differ_block.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/desktop_capture/differ_block.h b/third_party/libwebrtc/modules/desktop_capture/differ_block.h new file mode 100644 index 0000000000..6c71e214e9 --- /dev/null +++ b/third_party/libwebrtc/modules/desktop_capture/differ_block.h @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef MODULES_DESKTOP_CAPTURE_DIFFER_BLOCK_H_ +#define MODULES_DESKTOP_CAPTURE_DIFFER_BLOCK_H_ + +#include <stdint.h> + +namespace webrtc { + +// Size (in pixels) of each square block used for diffing. This must be a +// multiple of sizeof(uint64)/8. +const int kBlockSize = 32; + +// Format: BGRA 32 bit. +const int kBytesPerPixel = 4; + +// Low level function to compare 2 vectors of pixels of size kBlockSize. Returns +// whether the blocks differ. +bool VectorDifference(const uint8_t* image1, const uint8_t* image2); + +// Low level function to compare 2 blocks of pixels of size +// (kBlockSize, `height`). Returns whether the blocks differ. +bool BlockDifference(const uint8_t* image1, + const uint8_t* image2, + int height, + int stride); + +// Low level function to compare 2 blocks of pixels of size +// (kBlockSize, kBlockSize). Returns whether the blocks differ. +bool BlockDifference(const uint8_t* image1, const uint8_t* image2, int stride); + +} // namespace webrtc + +#endif // MODULES_DESKTOP_CAPTURE_DIFFER_BLOCK_H_ |