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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "differ_block.h"
#include <stdlib.h>
namespace remoting {
// TODO(fbarchard): Use common header for block size.
int kBlockWidth = 32;
int kBlockHeight = 32;
int kBytesPerPixel = 3;
int BlockDifference(const uint8* image1, const uint8* image2, int stride) {
int diff = 0;
for (int y = 0; y < kBlockHeight; ++y) {
for (int x = 0; x < kBlockWidth * kBytesPerPixel; ++x) {
diff += abs(image1[x] - image2[x]);
}
image1 += stride;
image2 += stride;
}
return diff;
}
} // namespace remoting
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