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Unified Diff: remoting/host/differ.h

Issue 11470028: Move screen capturers to remoting/capturer. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 8 years ago
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Index: remoting/host/differ.h
diff --git a/remoting/host/differ.h b/remoting/host/differ.h
deleted file mode 100644
index c46f57a4357e9f7f15867e4cb805f26c46474a26..0000000000000000000000000000000000000000
--- a/remoting/host/differ.h
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) 2011 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.
-
-#ifndef REMOTING_HOST_DIFFER_H_
-#define REMOTING_HOST_DIFFER_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "third_party/skia/include/core/SkRegion.h"
-
-namespace remoting {
-
-typedef uint8 DiffInfo;
-
-// TODO: Simplify differ now that we are working with SkRegions.
-// diff_info_ should no longer be needed, as we can put our data directly into
-// the region that we are calculating.
-// http://crbug.com/92379
-class Differ {
- public:
- // Create a differ that operates on bitmaps with the specified width, height
- // and bytes_per_pixel.
- Differ(int width, int height, int bytes_per_pixel, int stride);
- ~Differ();
-
- int width() { return width_; }
- int height() { return height_; }
- int bytes_per_pixel() { return bytes_per_pixel_; }
- int bytes_per_row() { return bytes_per_row_; }
-
- // Given the previous and current screen buffer, calculate the dirty region
- // that encloses all of the changed pixels in the new screen.
- void CalcDirtyRegion(const void* prev_buffer, const void* curr_buffer,
- SkRegion* region);
-
- private:
- // Allow tests to access our private parts.
- friend class DifferTest;
-
- // Identify all of the blocks that contain changed pixels.
- void MarkDirtyBlocks(const void* prev_buffer, const void* curr_buffer);
-
- // After the dirty blocks have been identified, this routine merges adjacent
- // blocks into a region.
- // The goal is to minimize the region that covers the dirty blocks.
- void MergeBlocks(SkRegion* region);
-
- // Check for diffs in upper-left portion of the block. The size of the portion
- // to check is specified by the |width| and |height| values.
- // Note that if we force the capturer to always return images whose width and
- // height are multiples of kBlockSize, then this will never be called.
- DiffInfo DiffPartialBlock(const uint8* prev_buffer, const uint8* curr_buffer,
- int stride, int width, int height);
-
- // Dimensions of screen.
- int width_;
- int height_;
-
- // Number of bytes for each pixel in source and dest bitmap.
- // (Yes, they must match.)
- int bytes_per_pixel_;
-
- // Number of bytes in each row of the image (AKA: stride).
- int bytes_per_row_;
-
- // Diff information for each block in the image.
- scoped_array<DiffInfo> diff_info_;
-
- // Dimensions and total size of diff info array.
- int diff_info_width_;
- int diff_info_height_;
- int diff_info_size_;
-
- DISALLOW_COPY_AND_ASSIGN(Differ);
-};
-
-} // namespace remoting
-
-#endif // REMOTING_HOST_DIFFER_H_

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