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/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2015 The Qt Company Ltd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "TextureMapperLayerClientQt.h"
#include "Frame.h"
#include "FrameView.h"
#include "GraphicsLayerTextureMapper.h"
#include "QWebFrameAdapter.h"
#include "QWebPageAdapter.h"
#include "TextureMapperLayer.h"
using namespace WebCore;
TextureMapperLayerClientQt::TextureMapperLayerClientQt(QWebFrameAdapter& frame)
: m_frame(frame)
, m_syncTimer(*this, &TextureMapperLayerClientQt::syncLayers)
, m_rootTextureMapperLayer(0)
{
}
TextureMapperLayerClientQt::~TextureMapperLayerClientQt()
{
m_rootTextureMapperLayer = 0;
}
void TextureMapperLayerClientQt::syncRootLayer()
{
m_rootGraphicsLayer->flushCompositingStateForThisLayerOnly(true/* viewportIsStable */);
}
void TextureMapperLayerClientQt::markForSync(bool scheduleSync)
{
if (m_syncTimer.isActive())
return;
m_syncTimer.startOneShot(0);
}
TextureMapperLayer* TextureMapperLayerClientQt::rootLayer()
{
return &downcast<GraphicsLayerTextureMapper>(m_rootGraphicsLayer.get())->layer();
}
void TextureMapperLayerClientQt::setRootGraphicsLayer(GraphicsLayer* layer)
{
if (layer) {
// FIXME: Is it ok to pass empty GraphicsLayer instead of 0?
m_rootGraphicsLayer = GraphicsLayer::create(0, *this);
m_rootTextureMapperLayer = rootLayer();
m_rootGraphicsLayer->addChild(layer);
m_rootGraphicsLayer->setDrawsContent(false);
m_rootGraphicsLayer->setMasksToBounds(false);
m_rootGraphicsLayer->setSize(IntSize(1, 1));
TextureMapper::AccelerationMode mode = TextureMapper::SoftwareMode;
if (pageClient() && pageClient()->makeOpenGLContextCurrentIfAvailable())
mode = TextureMapper::OpenGLMode;
m_textureMapper = TextureMapper::create(mode);
m_rootTextureMapperLayer->setTextureMapper(m_textureMapper.get());
syncRootLayer();
} else {
m_rootGraphicsLayer = nullptr;
m_rootTextureMapperLayer = 0;
}
}
void TextureMapperLayerClientQt::syncLayers()
{
if (m_rootGraphicsLayer)
syncRootLayer();
bool didSync = m_frame.frame->view()->flushCompositingStateIncludingSubframes();
if (!m_rootGraphicsLayer)
return;
if (didSync)
downcast<GraphicsLayerTextureMapper>(*m_rootGraphicsLayer).updateBackingStoreIncludingSubLayers();
if (rootLayer()->descendantsOrSelfHaveRunningAnimations() && !m_syncTimer.isActive())
m_syncTimer.startOneShot(1.0 / 60.0);
if (pageClient())
pageClient()->repaintViewport();
}
void TextureMapperLayerClientQt::renderCompositedLayers(GraphicsContext& context, const IntRect& clip)
{
if (!m_rootTextureMapperLayer || !m_textureMapper)
return;
m_textureMapper->setGraphicsContext(&context);
// GraphicsContext::imageInterpolationQuality is always InterpolationDefault here,
// but 'default' may be interpreted differently due to a different backend QPainter,
// so we need to set an explicit imageInterpolationQuality.
if (context.platformContext()->renderHints() & QPainter::SmoothPixmapTransform)
m_textureMapper->setImageInterpolationQuality(WebCore::InterpolationMedium);
else
m_textureMapper->setImageInterpolationQuality(WebCore::InterpolationNone);
m_textureMapper->setTextDrawingMode(context.textDrawingMode());
QPainter* painter = context.platformContext();
QTransform transform;
if (m_textureMapper->accelerationMode() == TextureMapper::OpenGLMode) {
// TextureMapperGL needs to duplicate the entire transform QPainter would do,
// including the transforms QPainter would normally do behind the scenes.
transform = painter->deviceTransform();
} else {
// TextureMapperImageBuffer needs a transform that can be used
// with QPainter::setWorldTransform.
transform = painter->worldTransform();
}
const TransformationMatrix matrix(
transform.m11(), transform.m12(), 0, transform.m13(),
transform.m21(), transform.m22(), 0, transform.m23(),
0, 0, 1, 0,
transform.m31(), transform.m32(), 0, transform.m33()
);
if (m_rootGraphicsLayer->opacity() != painter->opacity() || m_rootGraphicsLayer->transform() != matrix) {
m_rootGraphicsLayer->setOpacity(painter->opacity());
m_rootGraphicsLayer->setTransform(matrix);
m_rootGraphicsLayer->flushCompositingStateForThisLayerOnly(true);
}
m_textureMapper->beginPainting();
m_textureMapper->beginClip(matrix, clip);
m_rootTextureMapperLayer->paint();
m_fpsCounter.updateFPSAndDisplay(*m_textureMapper.get(), IntPoint::zero(), matrix);
m_textureMapper->endClip();
m_textureMapper->endPainting();
}
QWebPageClient* TextureMapperLayerClientQt::pageClient() const
{
return m_frame.pageAdapter->client.data();
}
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