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// 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/bitmap_skpicture_content_layer_updater.h"
#include "base/time/time.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/SkBitmapDevice.h"
#include "third_party/skia/include/core/SkCanvas.h"
namespace cc {
BitmapSkPictureContentLayerUpdater::Resource::Resource(
BitmapSkPictureContentLayerUpdater* updater,
scoped_ptr<PrioritizedResource> texture)
: ContentLayerUpdater::Resource(texture.Pass()), updater_(updater) {}
void BitmapSkPictureContentLayerUpdater::Resource::Update(
ResourceUpdateQueue* queue,
gfx::Rect source_rect,
gfx::Vector2d dest_offset,
bool partial_update) {
bitmap_.setConfig(
SkBitmap::kARGB_8888_Config, source_rect.width(), source_rect.height(), 0,
updater_->layer_is_opaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
bitmap_.allocPixels();
SkBitmapDevice device(bitmap_);
SkCanvas canvas(&device);
updater_->PaintContentsRect(&canvas, source_rect);
ResourceUpdate upload = ResourceUpdate::Create(
texture(), &bitmap_, source_rect, source_rect, dest_offset);
if (partial_update)
queue->AppendPartialUpload(upload);
else
queue->AppendFullUpload(upload);
}
scoped_refptr<BitmapSkPictureContentLayerUpdater>
BitmapSkPictureContentLayerUpdater::Create(
scoped_ptr<LayerPainter> painter,
RenderingStatsInstrumentation* stats_instrumentation,
int layer_id) {
return make_scoped_refptr(
new BitmapSkPictureContentLayerUpdater(painter.Pass(),
stats_instrumentation,
layer_id));
}
BitmapSkPictureContentLayerUpdater::BitmapSkPictureContentLayerUpdater(
scoped_ptr<LayerPainter> painter,
RenderingStatsInstrumentation* stats_instrumentation,
int layer_id)
: SkPictureContentLayerUpdater(painter.Pass(),
stats_instrumentation,
layer_id) {}
BitmapSkPictureContentLayerUpdater::~BitmapSkPictureContentLayerUpdater() {}
scoped_ptr<LayerUpdater::Resource>
BitmapSkPictureContentLayerUpdater::CreateResource(
PrioritizedResourceManager* manager) {
return scoped_ptr<LayerUpdater::Resource>(
new Resource(this, PrioritizedResource::Create(manager)));
}
void BitmapSkPictureContentLayerUpdater::PaintContentsRect(
SkCanvas* canvas,
gfx::Rect source_rect) {
// Translate the origin of content_rect to that of source_rect.
canvas->translate(content_rect().x() - source_rect.x(),
content_rect().y() - source_rect.y());
base::TimeTicks start_time =
rendering_stats_instrumentation_->StartRecording();
DrawPicture(canvas);
base::TimeDelta duration =
rendering_stats_instrumentation_->EndRecording(start_time);
rendering_stats_instrumentation_->AddRaster(
duration,
source_rect.width() * source_rect.height());
}
} // namespace cc
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