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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 "config.h"
#include "cc/skpicture_content_layer_updater.h"
#include "base/debug/trace_event.h"
#include "cc/layer_painter.h"
#include "cc/resource_update_queue.h"
#include "third_party/skia/include/core/SkCanvas.h"
namespace cc {
SkPictureContentLayerUpdater::Resource::Resource(SkPictureContentLayerUpdater* updater, scoped_ptr<PrioritizedTexture> texture)
: LayerUpdater::Resource(texture.Pass())
, m_updater(updater)
{
}
SkPictureContentLayerUpdater::Resource::~Resource()
{
}
void SkPictureContentLayerUpdater::Resource::update(ResourceUpdateQueue& queue, const IntRect& sourceRect, const IntSize& destOffset, bool partialUpdate, RenderingStats&)
{
updater()->updateTexture(queue, texture(), sourceRect, destOffset, partialUpdate);
}
SkPictureContentLayerUpdater::SkPictureContentLayerUpdater(scoped_ptr<LayerPainter> painter)
: ContentLayerUpdater(painter.Pass())
, m_layerIsOpaque(false)
{
}
SkPictureContentLayerUpdater::~SkPictureContentLayerUpdater()
{
}
scoped_refptr<SkPictureContentLayerUpdater> SkPictureContentLayerUpdater::create(scoped_ptr<LayerPainter> painter)
{
return make_scoped_refptr(new SkPictureContentLayerUpdater(painter.Pass()));
}
scoped_ptr<LayerUpdater::Resource> SkPictureContentLayerUpdater::createResource(PrioritizedTextureManager* manager)
{
return scoped_ptr<LayerUpdater::Resource>(new Resource(this, PrioritizedTexture::create(manager)));
}
void SkPictureContentLayerUpdater::prepareToUpdate(const IntRect& contentRect, const IntSize&, float contentsWidthScale, float contentsHeightScale, IntRect& resultingOpaqueRect, RenderingStats& stats)
{
SkCanvas* canvas = m_picture.beginRecording(contentRect.width(), contentRect.height());
paintContents(canvas, contentRect, contentsWidthScale, contentsHeightScale, resultingOpaqueRect, stats);
m_picture.endRecording();
}
void SkPictureContentLayerUpdater::drawPicture(SkCanvas* canvas)
{
TRACE_EVENT0("cc", "SkPictureContentLayerUpdater::drawPicture");
canvas->drawPicture(m_picture);
}
void SkPictureContentLayerUpdater::updateTexture(ResourceUpdateQueue& queue, PrioritizedTexture* texture, const IntRect& sourceRect, const IntSize& destOffset, bool partialUpdate)
{
ResourceUpdate upload = ResourceUpdate::CreateFromPicture(
texture, &m_picture, contentRect(), sourceRect, destOffset);
if (partialUpdate)
queue.appendPartialUpload(upload);
else
queue.appendFullUpload(upload);
}
void SkPictureContentLayerUpdater::setOpaque(bool opaque)
{
m_layerIsOpaque = opaque;
}
} // namespace cc
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