Implements core logic for Pixel Canvas

cc/raster/raster_source.cc

 // 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.
 
 #include "cc/raster/raster_source.h"
 
 #include <stddef.h>
 
 #include "base/trace_event/trace_event.h"
 #include "cc/base/math_util.h"
@@ skipping 15 matching lines @@
     : display_list_(other->display_list_),
       painter_reported_memory_usage_(other->painter_reported_memory_usage_),
       background_color_(other->background_color_),
       requires_clear_(other->requires_clear_),
       is_solid_color_(other->is_solid_color_),
       solid_color_(other->solid_color_),
       recorded_viewport_(other->recorded_viewport_),
       size_(other->size_),
       clear_canvas_with_debug_color_(other->clear_canvas_with_debug_color_),
       slow_down_raster_scale_factor_for_debug_(
-          other->slow_down_raster_scale_factor_for_debug_) {}
+          other->slow_down_raster_scale_factor_for_debug_),
+      recording_scale_factor_(other->recording_scale_factor_) {}
 RasterSource::~RasterSource() = default;
 
 void RasterSource::SetupCanvasForRaster(
     PaintCanvas* canvas,
     const gfx::Rect& canvas_bitmap_rect,
     const gfx::Rect& canvas_playback_rect,
     const gfx::AxisTransform2d& raster_transform,
     bool should_clear_canvas) const {
   canvas->translate(-canvas_bitmap_rect.x(), -canvas_bitmap_rect.y());
   canvas->clipRect(gfx::RectToSkRect(canvas_playback_rect));
   canvas->translate(raster_transform.translation().x(),
                     raster_transform.translation().y());
-  canvas->scale(raster_transform.scale(), raster_transform.scale());
+  canvas->scale(raster_transform.scale() / recording_scale_factor_,
+                raster_transform.scale() / recording_scale_factor_);
 
   if (should_clear_canvas)
     ClearCanvasForPlayback(canvas);
 }
 
 void RasterSource::PlaybackToCanvas(
     SkCanvas* raster_canvas,
     const gfx::ColorSpace& target_color_space,
     const gfx::Rect& canvas_bitmap_rect,
     const gfx::Rect& canvas_playback_rect,
@@ skipping 119 matching lines @@
   if (!display_list_)
     return 0;
   return display_list_->BytesUsed() + painter_reported_memory_usage_;
 }
 
 bool RasterSource::PerformSolidColorAnalysis(gfx::Rect layer_rect,
                                              SkColor* color) const {
   TRACE_EVENT0("cc", "RasterSource::PerformSolidColorAnalysis");
 
   layer_rect.Intersect(gfx::Rect(size_));
+  layer_rect = gfx::ScaleToRoundedRect(layer_rect, recording_scale_factor_);
   return display_list_->GetColorIfSolidInRect(layer_rect, color);
 }
 
 void RasterSource::GetDiscardableImagesInRect(
     const gfx::Rect& layer_rect,
     float contents_scale,
     const gfx::ColorSpace& target_color_space,
     std::vector<DrawImage>* images) const {
   DCHECK_EQ(0u, images->size());
   display_list_->discardable_image_map().GetDiscardableImagesInRect(
@@ skipping 50 matching lines @@
       use_lcd_text(true) {}
 
 RasterSource::PlaybackSettings::PlaybackSettings(const PlaybackSettings&) =
     default;
 
 RasterSource::PlaybackSettings::PlaybackSettings(PlaybackSettings&&) = default;
 
 RasterSource::PlaybackSettings::~PlaybackSettings() = default;
 
 }  // namespace cc