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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"
#if USE(ACCELERATED_COMPOSITING)
#include "TextureLayerChromium.h"
#include "CCLayerTreeHost.h"
#include "CCTextureLayerImpl.h"
#include <public/WebGraphicsContext3D.h>
namespace WebCore {
PassRefPtr<TextureLayerChromium> TextureLayerChromium::create(TextureLayerChromiumClient* client)
{
return adoptRef(new TextureLayerChromium(client));
}
TextureLayerChromium::TextureLayerChromium(TextureLayerChromiumClient* client)
: LayerChromium()
, m_client(client)
, m_flipped(true)
, m_uvRect(0, 0, 1, 1)
, m_premultipliedAlpha(true)
, m_rateLimitContext(false)
, m_contextLost(false)
, m_textureId(0)
{
}
TextureLayerChromium::~TextureLayerChromium()
{
if (layerTreeHost()) {
if (m_textureId)
layerTreeHost()->acquireLayerTextures();
if (m_rateLimitContext && m_client)
layerTreeHost()->stopRateLimiter(m_client->context());
}
}
PassOwnPtr<CCLayerImpl> TextureLayerChromium::createCCLayerImpl()
{
return CCTextureLayerImpl::create(m_layerId);
}
void TextureLayerChromium::setFlipped(bool flipped)
{
m_flipped = flipped;
setNeedsCommit();
}
void TextureLayerChromium::setUVRect(const FloatRect& rect)
{
m_uvRect = rect;
setNeedsCommit();
}
void TextureLayerChromium::setPremultipliedAlpha(bool premultipliedAlpha)
{
m_premultipliedAlpha = premultipliedAlpha;
setNeedsCommit();
}
void TextureLayerChromium::setRateLimitContext(bool rateLimit)
{
if (!rateLimit && m_rateLimitContext && m_client && layerTreeHost())
layerTreeHost()->stopRateLimiter(m_client->context());
m_rateLimitContext = rateLimit;
}
void TextureLayerChromium::setTextureId(unsigned id)
{
if (m_textureId == id)
return;
if (m_textureId && layerTreeHost())
layerTreeHost()->acquireLayerTextures();
m_textureId = id;
setNeedsCommit();
}
void TextureLayerChromium::willModifyTexture()
{
if (layerTreeHost())
layerTreeHost()->acquireLayerTextures();
}
void TextureLayerChromium::setNeedsDisplayRect(const FloatRect& dirtyRect)
{
LayerChromium::setNeedsDisplayRect(dirtyRect);
if (m_rateLimitContext && m_client && layerTreeHost())
layerTreeHost()->startRateLimiter(m_client->context());
}
void TextureLayerChromium::setLayerTreeHost(CCLayerTreeHost* host)
{
if (m_textureId && layerTreeHost() && host != layerTreeHost())
layerTreeHost()->acquireLayerTextures();
LayerChromium::setLayerTreeHost(host);
}
bool TextureLayerChromium::drawsContent() const
{
return (m_client || m_textureId) && !m_contextLost && LayerChromium::drawsContent();
}
void TextureLayerChromium::update(CCTextureUpdateQueue& queue, const CCOcclusionTracker*, CCRenderingStats&)
{
if (m_client) {
m_textureId = m_client->prepareTexture(queue);
m_contextLost = m_client->context()->getGraphicsResetStatusARB() != GraphicsContext3D::NO_ERROR;
}
m_needsDisplay = false;
}
void TextureLayerChromium::pushPropertiesTo(CCLayerImpl* layer)
{
LayerChromium::pushPropertiesTo(layer);
CCTextureLayerImpl* textureLayer = static_cast<CCTextureLayerImpl*>(layer);
textureLayer->setFlipped(m_flipped);
textureLayer->setUVRect(m_uvRect);
textureLayer->setPremultipliedAlpha(m_premultipliedAlpha);
textureLayer->setTextureId(m_textureId);
}
}
#endif // USE(ACCELERATED_COMPOSITING)
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