| // 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/trace_event/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, |
| int layer_id) |
| : ContentLayerUpdater(painter.Pass(), layer_id) { |
| } |
| |
| SkPictureContentLayerUpdater::~SkPictureContentLayerUpdater() {} |
| |
| void SkPictureContentLayerUpdater::PrepareToUpdate( |
| const gfx::Size& content_size, |
| const gfx::Rect& paint_rect, |
| const gfx::Size& tile_size, |
| float contents_width_scale, |
| float contents_height_scale) { |
| SkPictureRecorder recorder; |
| SkCanvas* canvas = |
| recorder.beginRecording(paint_rect.width(), paint_rect.height(), NULL, 0); |
| DCHECK_EQ(paint_rect.width(), canvas->getBaseLayerSize().width()); |
| DCHECK_EQ(paint_rect.height(), canvas->getBaseLayerSize().height()); |
| PaintContents(canvas, |
| content_size, |
| paint_rect, |
| contents_width_scale, |
| contents_height_scale); |
| picture_ = skia::AdoptRef(recorder.endRecording()); |
| } |
| |
| void SkPictureContentLayerUpdater::DrawPicture(SkCanvas* canvas) { |
| TRACE_EVENT0("cc", "SkPictureContentLayerUpdater::DrawPicture"); |
| if (picture_) |
| canvas->drawPicture(picture_.get()); |
| } |
| |
| } // namespace cc |