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// Copyright 2013 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 CC_TEST_LAYER_TREE_PIXEL_TEST_H_
#define CC_TEST_LAYER_TREE_PIXEL_TEST_H_

#include <vector>

#include "base/files/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "cc/resources/single_release_callback.h"
#include "cc/test/layer_tree_test.h"
#include "ui/gl/gl_implementation.h"

class SkBitmap;

namespace gpu {
class GLInProcessContext;
}

namespace cc {
class CopyOutputRequest;
class CopyOutputResult;
class LayerTreeHost;
class PixelComparator;
class SolidColorLayer;
class TextureLayer;
class TextureMailbox;

class LayerTreePixelTest : public LayerTreeTest {
 public:
  enum PixelTestType {
    PIXEL_TEST_GL,
    PIXEL_TEST_SOFTWARE,
  };

 protected:
  LayerTreePixelTest();
  ~LayerTreePixelTest() override;

  scoped_ptr<OutputSurface> CreateOutputSurface() override;
  void WillActivateTreeOnThread(LayerTreeHostImpl* impl) override;

  virtual scoped_ptr<CopyOutputRequest> CreateCopyOutputRequest();

  void ReadbackResult(scoped_ptr<CopyOutputResult> result);

  void BeginTest() override;
  void SetupTree() override;
  void AfterTest() override;
  void EndTest() override;

  void TryEndTest();

  scoped_refptr<SolidColorLayer> CreateSolidColorLayer(const gfx::Rect& rect,
                                                       SkColor color);
  scoped_refptr<SolidColorLayer> CreateSolidColorLayerWithBorder(
      const gfx::Rect& rect,
      SkColor color,
      int border_width,
      SkColor border_color);
  scoped_refptr<TextureLayer> CreateTextureLayer(const gfx::Rect& rect,
                                                 const SkBitmap& bitmap);

  void RunPixelTest(PixelTestType type,
                    scoped_refptr<Layer> content_root,
                    base::FilePath file_name);

  void RunSingleThreadedPixelTest(PixelTestType test_type,
                                  scoped_refptr<Layer> content_root,
                                  base::FilePath file_name);

  void RunPixelTestWithReadbackTarget(PixelTestType type,
                                      scoped_refptr<Layer> content_root,
                                      Layer* target,
                                      base::FilePath file_name);

  scoped_ptr<SkBitmap> CopyTextureMailboxToBitmap(
      const gfx::Size& size,
      const TextureMailbox& texture_mailbox);

  void CopyBitmapToTextureMailboxAsTexture(
      const SkBitmap& bitmap,
      TextureMailbox* texture_mailbox,
      scoped_ptr<SingleReleaseCallback>* release_callback);

  void ReleaseTextureMailbox(scoped_ptr<gpu::GLInProcessContext> context,
                             uint32 texture,
                             uint32 sync_point,
                             bool lost_resource);

  void set_enlarge_texture_amount(const gfx::Vector2d& enlarge_texture_amount) {
    enlarge_texture_amount_ = enlarge_texture_amount;
  }

  // Common CSS colors defined for tests to use.
  static const SkColor kCSSOrange = 0xffffa500;
  static const SkColor kCSSBrown = 0xffa52a2a;
  static const SkColor kCSSGreen = 0xff008000;

  gfx::DisableNullDrawGLBindings enable_pixel_output_;
  scoped_ptr<PixelComparator> pixel_comparator_;
  PixelTestType test_type_;
  scoped_refptr<Layer> content_root_;
  Layer* readback_target_;
  base::FilePath ref_file_;
  scoped_ptr<SkBitmap> result_bitmap_;
  std::vector<scoped_refptr<TextureLayer>> texture_layers_;
  int pending_texture_mailbox_callbacks_;
  gfx::Vector2d enlarge_texture_amount_;
};

}  // namespace cc

#endif  // CC_TEST_LAYER_TREE_PIXEL_TEST_H_