cc: Add image decode control in the compositor.

cc/playback/draw_image.h

 // Copyright 2015 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_DRAW_IMAGE_H_
 #define CC_PLAYBACK_DRAW_IMAGE_H_
 
 #include "third_party/skia/include/core/SkFilterQuality.h"
 #include "third_party/skia/include/core/SkImage.h"
 #include "third_party/skia/include/core/SkMatrix.h"
 
 namespace cc {
 
 class DrawImage {
  public:
   DrawImage() : image_(nullptr), filter_quality_(kNone_SkFilterQuality) {}
   DrawImage(const SkImage* image,
             const SkSize& scale,
-            SkFilterQuality filter_quality)
-      : image_(image), scale_(scale), filter_quality_(filter_quality) {}
+            SkFilterQuality filter_quality,
+            bool matrix_has_perspective,
+            bool matrix_is_decomposable)
+      : image_(image),
+        scale_(scale),
+        filter_quality_(filter_quality),
+        matrix_has_perspective_(matrix_has_perspective),
+        matrix_is_decomposable_(matrix_is_decomposable) {}
 
   const SkImage* image() const { return image_; }
   const SkSize& scale() const { return scale_; }
   SkFilterQuality filter_quality() const { return filter_quality_; }
+  bool matrix_has_perspective() const { return matrix_has_perspective_; }
+  bool matrix_is_decomposable() const { return matrix_is_decomposable_; }
 
   DrawImage ApplyScale(float scale) const {
     return DrawImage(
         image_, SkSize::Make(scale_.width() * scale, scale_.height() * scale),
-        filter_quality_);
+        filter_quality_, matrix_has_perspective_, matrix_is_decomposable_);
   }
 
  private:
   const SkImage* image_;
   SkSize scale_;
   SkFilterQuality filter_quality_;
+  bool matrix_has_perspective_;
+  bool matrix_is_decomposable_;
+};
+
+class DecodedDrawImage {

[enne (OOO), 2015/12/02 23:33:25]

Different classes, different files?

[vmpstr, 2015/12/03 21:20:23]

Done.

+ public:
+  DecodedDrawImage(const SkImage* image,
+                   const SkSize& scale_adjustment,
+                   SkFilterQuality filter_quality)
+      : image_(image),
+        scale_adjustment_(scale_adjustment),
+        filter_quality_(filter_quality),
+        at_raster_decode_(false) {}
+
+  const SkImage* image() const { return image_; }
+  const SkSize& scale_adjustment() const { return scale_adjustment_; }
+  SkFilterQuality filter_quality() const { return filter_quality_; }
+  bool is_scale_adjustment_identity() const {
+    return std::abs(scale_adjustment_.width() - 1.f) < FLT_EPSILON &&
+           std::abs(scale_adjustment_.height() - 1.f) < FLT_EPSILON;
+  }
+
+  void set_at_raster_decode(bool at_raster_decode) {
+    at_raster_decode_ = at_raster_decode;
+  }
+  bool is_at_raster_decode() const { return at_raster_decode_; }
+
+ private:
+  const SkImage* image_;
+  SkSize scale_adjustment_;
+  SkFilterQuality filter_quality_;
+  bool at_raster_decode_;
 };
 
 }  // namespace cc
 
 #endif  // CC_PLAYBACK_DRAW_IMAGE_H_