Raster: Allow a RasterSource to specify its color space

cc/playback/raster_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_PLAYBACK_RASTER_SOURCE_H_
 #define CC_PLAYBACK_RASTER_SOURCE_H_
 
 #include <stddef.h>
 
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "cc/base/cc_export.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/playback/recording_source.h"
 #include "skia/ext/analysis_canvas.h"
 #include "third_party/skia/include/core/SkPicture.h"
 
+namespace gfx {
+class ColorSpace;
+}
+
 namespace cc {
 class DisplayItemList;
 class DrawImage;
 class ImageDecodeController;
 
 class CC_EXPORT RasterSource : public base::RefCountedThreadSafe<RasterSource> {
  public:
   struct CC_EXPORT PlaybackSettings {
     PlaybackSettings();
 
@@ skipping 41 matching lines @@
   // Returns true iff the whole raster source is of solid color.
   bool IsSolidColor() const;
 
   // Returns the color of the raster source if it is solid color. The results
   // are unspecified if IsSolidColor returns false.
   SkColor GetSolidColor() const;
 
   // Returns the size of this raster source.
   gfx::Size GetSize() const;
 
+  // Returns whether or not there was a color space implied by the raster source
+  // when it was created. If this returns true then no color correction is
+  // to be applied at rasterization time, and the result of rasterization is to
+  // be interpreted as being in this color space. If this returns falce, then
+  // then a destination color space must be specified at raster time.
+  bool HasImpliedColorSpace() const;
+  const gfx::ColorSpace& GetImpliedColorSpace() const;
+
   // Populate the given list with all images that may overlap the given
   // rect in layer space. The returned draw images' matrices are modified as if
   // they were being using during raster at scale |raster_scale|.
   void GetDiscardableImagesInRect(const gfx::Rect& layer_rect,
                                   const gfx::SizeF& raster_scales,
                                   std::vector<DrawImage>* images) const;
 
   // Return true iff this raster source can raster the given rect in layer
   // space.
   bool CoversRect(const gfx::Rect& layer_rect) const;
@@ skipping 74 matching lines @@
   void RasterCommon(SkCanvas* canvas, SkPicture::AbortCallback* callback) const;
 
   void PrepareForPlaybackToCanvas(SkCanvas* canvas) const;
 
   DISALLOW_COPY_AND_ASSIGN(RasterSource);
 };
 
 }  // namespace cc
 
 #endif  // CC_PLAYBACK_RASTER_SOURCE_H_