1 // Copyright 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "cc/resources/bitmap_skpicture_content_layer_updater.h"
7 #include "base/time/time.h"
8 #include "cc/debug/rendering_stats_instrumentation.h"
9 #include "cc/resources/layer_painter.h"
10 #include "cc/resources/prioritized_resource.h"
11 #include "cc/resources/resource_update_queue.h"
12 #include "third_party/skia/include/core/SkCanvas.h"
16 BitmapSkPictureContentLayerUpdater::Resource::Resource(
17 BitmapSkPictureContentLayerUpdater* updater,
18 scoped_ptr<PrioritizedResource> texture)
19 : ContentLayerUpdater::Resource(texture.Pass()), updater_(updater) {}
21 void BitmapSkPictureContentLayerUpdater::Resource::Update(
22 ResourceUpdateQueue* queue,
23 const gfx::Rect& source_rect,
24 const gfx::Vector2d& dest_offset,
25 bool partial_update) {
27 updater_->layer_is_opaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
28 bitmap_.allocPixels(SkImageInfo::Make(
29 source_rect.width(), source_rect.height(), kN32_SkColorType, at));
30 SkCanvas canvas(bitmap_);
31 updater_->PaintContentsRect(&canvas, source_rect);
33 ResourceUpdate upload = ResourceUpdate::Create(
34 texture(), &bitmap_, source_rect, source_rect, dest_offset);
36 queue->AppendPartialUpload(upload);
38 queue->AppendFullUpload(upload);
41 scoped_refptr<BitmapSkPictureContentLayerUpdater>
42 BitmapSkPictureContentLayerUpdater::Create(
43 scoped_ptr<LayerPainter> painter,
44 RenderingStatsInstrumentation* stats_instrumentation,
46 return make_scoped_refptr(
47 new BitmapSkPictureContentLayerUpdater(painter.Pass(),
48 stats_instrumentation,
52 BitmapSkPictureContentLayerUpdater::BitmapSkPictureContentLayerUpdater(
53 scoped_ptr<LayerPainter> painter,
54 RenderingStatsInstrumentation* stats_instrumentation,
56 : SkPictureContentLayerUpdater(painter.Pass(),
57 stats_instrumentation,
60 BitmapSkPictureContentLayerUpdater::~BitmapSkPictureContentLayerUpdater() {}
62 scoped_ptr<LayerUpdater::Resource>
63 BitmapSkPictureContentLayerUpdater::CreateResource(
64 PrioritizedResourceManager* manager) {
65 return make_scoped_ptr(
66 new Resource(this, PrioritizedResource::Create(manager)));
69 void BitmapSkPictureContentLayerUpdater::PaintContentsRect(
71 const gfx::Rect& source_rect) {
74 // Translate the origin of content_rect to that of source_rect.
75 canvas->translate(paint_rect().x() - source_rect.x(),
76 paint_rect().y() - source_rect.y());