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// Copyright 2010 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/content_layer.h"
#include "CCLayerTreeHost.h"
#include "CCSettings.h"
#include "base/metrics/histogram.h"
#include "base/time.h"
#include "cc/bitmap_canvas_layer_texture_updater.h"
#include "cc/bitmap_skpicture_canvas_layer_texture_updater.h"
#include "cc/content_layer_client.h"
#include "cc/frame_buffer_skpicture_canvas_layer_texture_updater.h"
#include "cc/layer_painter.h"
namespace cc {
ContentLayerPainter::ContentLayerPainter(ContentLayerChromiumClient* client)
: m_client(client)
{
}
scoped_ptr<ContentLayerPainter> ContentLayerPainter::create(ContentLayerChromiumClient* client)
{
return make_scoped_ptr(new ContentLayerPainter(client));
}
void ContentLayerPainter::paint(SkCanvas* canvas, const IntRect& contentRect, FloatRect& opaque)
{
base::TimeTicks paintStart = base::TimeTicks::HighResNow();
m_client->paintContents(canvas, contentRect, opaque);
base::TimeTicks paintEnd = base::TimeTicks::HighResNow();
double pixelsPerSec = (contentRect.width() * contentRect.height()) / (paintEnd - paintStart).InSecondsF();
HISTOGRAM_CUSTOM_COUNTS("Renderer4.AccelContentPaintDurationMS", (paintEnd - paintStart).InMilliseconds(), 0, 120, 30);
HISTOGRAM_CUSTOM_COUNTS("Renderer4.AccelContentPaintMegapixPerSecond", pixelsPerSec / 1000000, 10, 210, 30);
}
scoped_refptr<ContentLayerChromium> ContentLayerChromium::create(ContentLayerChromiumClient* client)
{
return make_scoped_refptr(new ContentLayerChromium(client));
}
ContentLayerChromium::ContentLayerChromium(ContentLayerChromiumClient* client)
: TiledLayerChromium()
, m_client(client)
{
}
ContentLayerChromium::~ContentLayerChromium()
{
}
bool ContentLayerChromium::drawsContent() const
{
return TiledLayerChromium::drawsContent() && m_client;
}
void ContentLayerChromium::setTexturePriorities(const CCPriorityCalculator& priorityCalc)
{
// Update the tile data before creating all the layer's tiles.
updateTileSizeAndTilingOption();
TiledLayerChromium::setTexturePriorities(priorityCalc);
}
void ContentLayerChromium::update(CCTextureUpdateQueue& queue, const CCOcclusionTracker* occlusion, CCRenderingStats& stats)
{
createTextureUpdaterIfNeeded();
TiledLayerChromium::update(queue, occlusion, stats);
m_needsDisplay = false;
}
bool ContentLayerChromium::needMoreUpdates()
{
return needsIdlePaint();
}
LayerTextureUpdater* ContentLayerChromium::textureUpdater() const
{
return m_textureUpdater.get();
}
void ContentLayerChromium::createTextureUpdaterIfNeeded()
{
if (m_textureUpdater)
return;
scoped_ptr<LayerPainterChromium> painter = ContentLayerPainter::create(m_client).PassAs<LayerPainterChromium>();
if (layerTreeHost()->settings().acceleratePainting)
m_textureUpdater = FrameBufferSkPictureCanvasLayerTextureUpdater::create(painter.Pass());
else if (Settings::perTilePaintingEnabled())
m_textureUpdater = BitmapSkPictureCanvasLayerTextureUpdater::create(painter.Pass());
else
m_textureUpdater = BitmapCanvasLayerTextureUpdater::create(painter.Pass());
m_textureUpdater->setOpaque(contentsOpaque());
GLenum textureFormat = layerTreeHost()->rendererCapabilities().bestTextureFormat;
setTextureFormat(textureFormat);
setSampledTexelFormat(textureUpdater()->sampledTexelFormat(textureFormat));
}
void ContentLayerChromium::setContentsOpaque(bool opaque)
{
LayerChromium::setContentsOpaque(opaque);
if (m_textureUpdater)
m_textureUpdater->setOpaque(opaque);
}
}
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