CCLayerIterator.cpp [plain text]
#include "config.h"
#if USE(ACCELERATED_COMPOSITING)
#include "cc/CCLayerIterator.h"
#include "LayerChromium.h"
#include "RenderSurfaceChromium.h"
#include "cc/CCLayerImpl.h"
#include "cc/CCRenderSurface.h"
namespace WebCore {
template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
void CCLayerIteratorActions::BackToFront::begin(CCLayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>& it)
{
it.m_targetRenderSurfaceLayerIndex = 0;
it.m_currentLayerIndex = CCLayerIteratorValue::LayerIndexRepresentingTargetRenderSurface;
m_highestTargetRenderSurfaceLayer = 0;
}
template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
void CCLayerIteratorActions::BackToFront::end(CCLayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>& it)
{
it.m_targetRenderSurfaceLayerIndex = CCLayerIteratorValue::InvalidTargetRenderSurfaceLayerIndex;
it.m_currentLayerIndex = 0;
}
template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
void CCLayerIteratorActions::BackToFront::next(CCLayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>& it)
{
if (it.currentLayerRepresentsContributingRenderSurface()) {
it.targetRenderSurface()->m_currentLayerIndexHistory = it.m_currentLayerIndex;
int previousTargetRenderSurfaceLayer = it.m_targetRenderSurfaceLayerIndex;
it.m_targetRenderSurfaceLayerIndex = ++m_highestTargetRenderSurfaceLayer;
it.m_currentLayerIndex = CCLayerIteratorValue::LayerIndexRepresentingTargetRenderSurface;
it.targetRenderSurface()->m_targetRenderSurfaceLayerIndexHistory = previousTargetRenderSurfaceLayer;
} else {
++it.m_currentLayerIndex;
int targetRenderSurfaceNumChildren = it.targetRenderSurfaceChildren().size();
while (it.m_currentLayerIndex == targetRenderSurfaceNumChildren) {
if (!it.m_targetRenderSurfaceLayerIndex) {
it.m_targetRenderSurfaceLayerIndex = CCLayerIteratorValue::InvalidTargetRenderSurfaceLayerIndex;
it.m_currentLayerIndex = 0;
return;
}
it.m_targetRenderSurfaceLayerIndex = it.targetRenderSurface()->m_targetRenderSurfaceLayerIndexHistory;
it.m_currentLayerIndex = it.targetRenderSurface()->m_currentLayerIndexHistory + 1;
targetRenderSurfaceNumChildren = it.targetRenderSurfaceChildren().size();
}
}
}
template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
void CCLayerIteratorActions::FrontToBack::begin(CCLayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>& it)
{
it.m_targetRenderSurfaceLayerIndex = 0;
it.m_currentLayerIndex = it.targetRenderSurfaceChildren().size() - 1;
goToHighestInSubtree(it);
}
template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
void CCLayerIteratorActions::FrontToBack::end(CCLayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>& it)
{
it.m_targetRenderSurfaceLayerIndex = CCLayerIteratorValue::InvalidTargetRenderSurfaceLayerIndex;
it.m_currentLayerIndex = 0;
}
template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
void CCLayerIteratorActions::FrontToBack::next(CCLayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>& it)
{
if (!it.currentLayerRepresentsTargetRenderSurface()) {
--it.m_currentLayerIndex;
goToHighestInSubtree(it);
} else {
while (it.currentLayerRepresentsTargetRenderSurface()) {
if (!it.m_targetRenderSurfaceLayerIndex) {
it.m_targetRenderSurfaceLayerIndex = CCLayerIteratorValue::InvalidTargetRenderSurfaceLayerIndex;
it.m_currentLayerIndex = 0;
return;
}
it.m_targetRenderSurfaceLayerIndex = it.targetRenderSurface()->m_targetRenderSurfaceLayerIndexHistory;
it.m_currentLayerIndex = it.targetRenderSurface()->m_currentLayerIndexHistory;
}
}
}
template <typename LayerType, typename LayerList, typename RenderSurfaceType, typename ActionType>
void CCLayerIteratorActions::FrontToBack::goToHighestInSubtree(CCLayerIterator<LayerType, LayerList, RenderSurfaceType, ActionType>& it)
{
if (it.currentLayerRepresentsTargetRenderSurface())
return;
while (it.currentLayerRepresentsContributingRenderSurface()) {
it.targetRenderSurface()->m_currentLayerIndexHistory = it.m_currentLayerIndex;
int previousTargetRenderSurfaceLayer = it.m_targetRenderSurfaceLayerIndex;
for (LayerType* layer = it.currentLayer(); it.targetRenderSurfaceLayer() != layer; ++it.m_targetRenderSurfaceLayerIndex) { }
it.m_currentLayerIndex = it.targetRenderSurfaceChildren().size() - 1;
it.targetRenderSurface()->m_targetRenderSurfaceLayerIndexHistory = previousTargetRenderSurfaceLayer;
}
}
template void CCLayerIteratorActions::BackToFront::begin(CCLayerIterator<LayerChromium, Vector<RefPtr<LayerChromium> >, RenderSurfaceChromium, BackToFront> &);
template void CCLayerIteratorActions::BackToFront::end(CCLayerIterator<LayerChromium, Vector<RefPtr<LayerChromium> >, RenderSurfaceChromium, BackToFront>&);
template void CCLayerIteratorActions::BackToFront::next(CCLayerIterator<LayerChromium, Vector<RefPtr<LayerChromium> >, RenderSurfaceChromium, BackToFront>&);
template void CCLayerIteratorActions::BackToFront::begin(CCLayerIterator<CCLayerImpl, Vector<CCLayerImpl*>, CCRenderSurface, BackToFront>&);
template void CCLayerIteratorActions::BackToFront::end(CCLayerIterator<CCLayerImpl, Vector<CCLayerImpl*>, CCRenderSurface, BackToFront>&);
template void CCLayerIteratorActions::BackToFront::next(CCLayerIterator<CCLayerImpl, Vector<CCLayerImpl*>, CCRenderSurface, BackToFront>&);
template void CCLayerIteratorActions::FrontToBack::next(CCLayerIterator<LayerChromium, Vector<RefPtr<LayerChromium> >, RenderSurfaceChromium, FrontToBack>&);
template void CCLayerIteratorActions::FrontToBack::end(CCLayerIterator<LayerChromium, Vector<RefPtr<LayerChromium> >, RenderSurfaceChromium, FrontToBack>&);
template void CCLayerIteratorActions::FrontToBack::begin(CCLayerIterator<LayerChromium, Vector<RefPtr<LayerChromium> >, RenderSurfaceChromium, FrontToBack>&);
template void CCLayerIteratorActions::FrontToBack::goToHighestInSubtree(CCLayerIterator<LayerChromium, Vector<RefPtr<LayerChromium> >, RenderSurfaceChromium, FrontToBack>&);
template void CCLayerIteratorActions::FrontToBack::next(CCLayerIterator<CCLayerImpl, Vector<CCLayerImpl*>, CCRenderSurface, FrontToBack>&);
template void CCLayerIteratorActions::FrontToBack::end(CCLayerIterator<CCLayerImpl, Vector<CCLayerImpl*>, CCRenderSurface, FrontToBack>&);
template void CCLayerIteratorActions::FrontToBack::begin(CCLayerIterator<CCLayerImpl, Vector<CCLayerImpl*>, CCRenderSurface, FrontToBack>&);
template void CCLayerIteratorActions::FrontToBack::goToHighestInSubtree(CCLayerIterator<CCLayerImpl, Vector<CCLayerImpl*>, CCRenderSurface, FrontToBack>&);
}
#endif // USE(ACCELERATED_COMPOSITING)