// 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.

#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"

#ifndef CC_TEST_LAYER_TREE_PIXEL_TEST_H_
#define CC_TEST_LAYER_TREE_PIXEL_TEST_H_

class SkBitmap;

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

class LayerTreePixelTest : public LayerTreeTest {
 protected:
  LayerTreePixelTest();
  virtual ~LayerTreePixelTest();

  virtual scoped_ptr<OutputSurface> CreateOutputSurface(bool fallback) OVERRIDE;
  virtual scoped_refptr<ContextProvider> OffscreenContextProvider() OVERRIDE;
  virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE;

  virtual scoped_ptr<CopyOutputRequest> CreateCopyOutputRequest();

  void ReadbackResult(scoped_ptr<CopyOutputResult> result);

  virtual void BeginTest() OVERRIDE;
  virtual void SetupTree() OVERRIDE;
  virtual void AfterTest() OVERRIDE;
  virtual void EndTest() OVERRIDE;

  void TryEndTest();

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

  enum PixelTestType {
    GL_WITH_DEFAULT,
    GL_WITH_BITMAP,
    SOFTWARE_WITH_DEFAULT,
    SOFTWARE_WITH_BITMAP
  };

  void RunPixelTest(PixelTestType 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(
      gfx::Size size,
      const TextureMailbox& texture_mailbox);

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

  void ReleaseTextureMailbox(
      scoped_ptr<blink::WebGraphicsContext3D> context3d,
      uint32 texture,
      uint32 sync_point,
      bool lost_resource);

  // Common CSS colors defined for tests to use.
  enum Colors {
    kCSSOrange = 0xffffa500,
    kCSSBrown = 0xffa52a2a,
    kCSSGreen = 0xff008000,
  };

  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_;
  bool impl_side_painting_;
};

}  // namespace cc

#endif  // CC_TEST_LAYER_TREE_PIXEL_TEST_H_