| // Copyright 2011 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/resources/skpicture_content_layer_updater.h" |
| |
| #include "base/debug/trace_event.h" |
| #include "cc/debug/rendering_stats_instrumentation.h" |
| #include "cc/resources/layer_painter.h" |
| #include "cc/resources/prioritized_resource.h" |
| #include "cc/resources/resource_update_queue.h" |
| #include "third_party/skia/include/core/SkCanvas.h" |
| #include "third_party/skia/include/core/SkPictureRecorder.h" |
| |
| namespace cc { |
| |
| SkPictureContentLayerUpdater::SkPictureContentLayerUpdater( |
| scoped_ptr<LayerPainter> painter, |
| RenderingStatsInstrumentation* stats_instrumentation, |
| int layer_id) |
| : ContentLayerUpdater(painter.Pass(), stats_instrumentation, layer_id) {} |
| |
| SkPictureContentLayerUpdater::~SkPictureContentLayerUpdater() {} |
| |
| void SkPictureContentLayerUpdater::PrepareToUpdate( |
| const gfx::Rect& content_rect, |
| const gfx::Size&, |
| float contents_width_scale, |
| float contents_height_scale, |
| gfx::Rect* resulting_opaque_rect) { |
| SkPictureRecorder recorder; |
| SkCanvas* canvas = recorder.beginRecording( |
| content_rect.width(), content_rect.height(), NULL, 0); |
| DCHECK_EQ(content_rect.width(), canvas->getBaseLayerSize().width()); |
| DCHECK_EQ(content_rect.height(), canvas->getBaseLayerSize().height()); |
| base::TimeTicks start_time = |
| rendering_stats_instrumentation_->StartRecording(); |
| PaintContents(canvas, |
| content_rect, |
| contents_width_scale, |
| contents_height_scale, |
| resulting_opaque_rect); |
| base::TimeDelta duration = |
| rendering_stats_instrumentation_->EndRecording(start_time); |
| rendering_stats_instrumentation_->AddRecord( |
| duration, content_rect.width() * content_rect.height()); |
| picture_ = skia::AdoptRef(recorder.endRecording()); |
| } |
| |
| void SkPictureContentLayerUpdater::DrawPicture(SkCanvas* canvas) { |
| TRACE_EVENT0("cc", "SkPictureContentLayerUpdater::DrawPicture"); |
| if (picture_) |
| canvas->drawPicture(picture_.get()); |
| } |
| |
| } // namespace cc |