cc/resources/recording_source.h

// Copyright 2014 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_RESOURCES_RECORDING_SOURCE_H_
#define CC_RESOURCES_RECORDING_SOURCE_H_

#include "base/memory/ref_counted.h"
#include "cc/base/cc_export.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size.h"

namespace cc {
class ContentLayerClient;
class Region;
class RasterSource;

class CC_EXPORT RecordingSource {
 public:
  enum RecordingMode {
    RECORD_NORMALLY,
    RECORD_WITH_SK_NULL_CANVAS,
    RECORD_WITH_PAINTING_DISABLED,
    RECORD_WITH_CACHING_DISABLED,
    RECORDING_MODE_COUNT,  // Must be the last entry.
  };

  virtual ~RecordingSource() {}
  // Re-record parts of the picture that are invalid.
  // Invalidations are in layer space, and will be expanded to cover everything
  // that was either recorded/changed or that has no recording, leaving out only
  // pieces that we had a recording for and it was not changed.
  // Return true iff the pile was modified.
  virtual bool UpdateAndExpandInvalidation(ContentLayerClient* painter,
                                           Region* invalidation,
                                           const gfx::Size& layer_size,
                                           const gfx::Rect& visible_layer_rect,
                                           int frame_number,
                                           RecordingMode recording_mode) = 0;

  virtual void DidMoveToNewCompositor() = 0;

  virtual scoped_refptr<RasterSource> CreateRasterSource(
      bool can_use_lcd_text) const = 0;

  virtual gfx::Size GetSize() const = 0;
  virtual void SetEmptyBounds() = 0;
  virtual void SetSlowdownRasterScaleFactor(int factor) = 0;
  virtual void SetBackgroundColor(SkColor background_color) = 0;
  virtual void SetRequiresClear(bool requires_clear) = 0;
  virtual bool IsSuitableForGpuRasterization() const = 0;

  // TODO(hendrikw): Figure out how to remove this.
  virtual void SetUnsuitableForGpuRasterizationForTesting() = 0;
  virtual gfx::Size GetTileGridSizeForTesting() const = 0;
};

}  // namespace cc

#endif  // CC_RESOURCES_RECORDING_SOURCE_H_