bool LayerAndroid::canJoinSurface(Surface* surface)
{
#ifdef DISABLE_LAYER_MERGE
return false;
#else
// returns true if the layer can be merged onto the surface (group of layers)
if (!surface)
return false;
LayerAndroid* lastLayer = surface->getFirstLayer();
// isolate intrinsically composited layers
if (needsIsolatedSurface() || lastLayer->needsIsolatedSurface())
return false;
// TODO: investigate potential for combining transformed layers
if (!m_drawTransform.isIdentityOrTranslation()
|| !lastLayer->m_drawTransform.isIdentityOrTranslation())
return false;
// TODO: compare other layer properties - fixed? overscroll? transformed?
// SAMSUNG CHANGE ++
if(m_drawOpacity <= 0) // google handwriting icon('g') display error. opacity:0 layer is not updated properly due to MergedLayers logic.
return false;
// SAMSUNG CHANGE --
return true;
#endif
}
// This is called on the UI thread only.
// The video layers are composited on the webkit thread and then copied over
// to the UI thread with the same ID. For rendering, we are only using the
// video layers on the UI thread. Therefore, on the UI thread, we have to use
// the videoLayerId from Java side to find the exact video layer in the tree
// to set the surface texture.
// Every time a play call into Java side, the videoLayerId will be sent and
// saved in Java side. Then every time setBaseLayer call, the saved
// videoLayerId will be passed to this function to find the Video Layer.
// Return value: true when the video layer is found.
static bool SendSurfaceTexture(JNIEnv* env, jobject obj, jobject surfTex,
int baseLayer, int videoLayerId,
int textureName, int playerState) {
if (!surfTex)
return false;
sp<SurfaceTexture> texture = android::SurfaceTexture_getSurfaceTexture(env, surfTex);
if (!texture.get())
return false;
BaseLayerAndroid* layerImpl = reinterpret_cast<BaseLayerAndroid*>(baseLayer);
if (!layerImpl)
return false;
if (!layerImpl->countChildren())
return false;
LayerAndroid* compositedRoot = static_cast<LayerAndroid*>(layerImpl->getChild(0));
if (!compositedRoot)
return false;
VideoLayerAndroid* videoLayer =
static_cast<VideoLayerAndroid*>(compositedRoot->findById(videoLayerId));
if (!videoLayer)
return false;
// Set the SurfaceTexture to the layer we found
videoLayer->setSurfaceTexture(texture, textureName, static_cast<PlayerState>(playerState));
return true;
}
bool BaseLayerAndroid::drawGL(IntRect& viewRect, SkRect& visibleRect,
float scale)
{
XLOG("drawing BLA %p", this);
// TODO: consider moving drawBackground outside of prepare (into tree manager)
m_state->drawBackground(m_color);
drawBasePictureInGL();
bool needsRedraw = false;
#if USE(ACCELERATED_COMPOSITING)
LayerAndroid* compositedRoot = static_cast<LayerAndroid*>(getChild(0));
if (compositedRoot) {
updateLayerPositions(visibleRect);
// For now, we render layers only if the rendering mode
// is kAllTextures or kClippedTextures
if (compositedRoot->drawGL()) {
if (TilesManager::instance()->layerTexturesRemain()) {
// only try redrawing for layers if layer textures remain,
// otherwise we'll repaint without getting anything done
needsRedraw = true;
}
}
}
#endif // USE(ACCELERATED_COMPOSITING)
#ifdef DEBUG
ClassTracker::instance()->show();
#endif
return needsRedraw;
}
void PaintedSurface::prepare(GLWebViewState* state)
{
XLOG("PS %p has PL %p, DL %p", this, m_paintingLayer, m_drawingLayer);
LayerAndroid* paintingLayer = m_paintingLayer;
if (!paintingLayer)
paintingLayer = m_drawingLayer;
if (!paintingLayer)
return;
bool startFastSwap = false;
if (state->isScrolling()) {
// when scrolling, block updates and swap tiles as soon as they're ready
startFastSwap = true;
}
XLOG("prepare layer %d %x at scale %.2f",
paintingLayer->uniqueId(), paintingLayer,
paintingLayer->getScale());
IntRect visibleArea = computeVisibleArea(paintingLayer);
IntRect prepareArea = computePrepareArea(paintingLayer); // SAMSUNG CHANGE
m_scale = state->scale();
// If we do not have text, we may as well limit ourselves to
// a scale factor of one... this saves up textures.
if (m_scale > 1 && !paintingLayer->hasText())
m_scale = 1;
m_tiledTexture->prepare(state, m_scale, m_pictureUsed != paintingLayer->pictureUsed(),
startFastSwap, visibleArea, prepareArea); // SAMSUNG CHANGE
}
void TreeManager::updateScrollableLayerInTree(Layer* tree, int layerId, int x, int y)
{
LayerAndroid* layer;
if (tree && tree->countChildren()) {
layer = static_cast<LayerAndroid*>(tree->getChild(0))->findById(layerId);
if (layer && layer->contentIsScrollable())
static_cast<ScrollableLayerAndroid*>(layer)->scrollTo(x, y);
}
}
void LayerAndroid::mergeInvalsInto(LayerAndroid* replacementTree)
{
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->mergeInvalsInto(replacementTree);
LayerAndroid* replacementLayer = replacementTree->findById(uniqueId());
if (replacementLayer)
replacementLayer->markAsDirty(m_dirtyRegion);
}
bool LayerAndroid::visible() {
// TODO: avoid climbing tree each access
LayerAndroid* current = this;
while (current->getParent()) {
if (!current->m_visible)
return false;
current = static_cast<LayerAndroid*>(current->getParent());
}
return true;
}
void ChromeClientAndroid::enterFullscreenForNode(Node* node)
{
if (!node->hasTagName(HTMLNames::videoTag))
return;
HTMLMediaElement* videoElement = static_cast<HTMLMediaElement*>(node);
String url = videoElement->currentSrc();
LayerAndroid* layer = videoElement->platformLayer();
if (!layer)
return;
FrameView* frameView = m_webFrame->page()->mainFrame()->view();
android::WebViewCore* core = android::WebViewCore::getWebViewCore(frameView);
if (core)
core->enterFullscreenForVideoLayer(layer->uniqueId(), url);
}
void GraphicsLayerAndroid::syncChildren()
{
if (m_needsSyncChildren) {
m_contentLayer->removeChildren();
LayerAndroid* layer = m_contentLayer;
if (m_foregroundClipLayer) {
m_contentLayer->addChild(m_foregroundClipLayer);
// Use the scrollable content layer as the parent of the children so
// that they move with the content.
layer = m_foregroundLayer;
layer->removeChildren();
}
for (unsigned int i = 0; i < m_children.size(); i++)
layer->addChild(m_children[i]->platformLayer());
m_needsSyncChildren = false;
}
}
bool BaseLayerAndroid::prepare(double currentTime, IntRect& viewRect,
SkRect& visibleRect, float scale)
{
XLOG("preparing BLA %p", this);
// base layer is simply drawn in prepare, since there is always a base layer it doesn't matter
bool needsRedraw = prepareBasePictureInGL(visibleRect, scale, currentTime);
LayerAndroid* compositedRoot = static_cast<LayerAndroid*>(getChild(0));
if (compositedRoot) {
updateLayerPositions(visibleRect);
XLOG("preparing BLA %p, root %p", this, compositedRoot);
compositedRoot->prepare();
}
return needsRedraw;
}
bool LayerAndroid::drawChildrenCanvas(SkCanvas* canvas, PaintStyle style)
{
bool askScreenUpdate = false;
int count = this->countChildren();
if (count > 0) {
Vector <LayerAndroid*> sublayers;
for (int i = 0; i < count; i++)
sublayers.append(this->getChild(i));
// now we sort for the transparency
std::stable_sort(sublayers.begin(), sublayers.end(), compareLayerZ);
for (int i = 0; i < count; i++) {
LayerAndroid* layer = sublayers[i];
askScreenUpdate |= layer->drawCanvas(canvas, true, style);
}
}
return askScreenUpdate;
}
LayerAndroid::LayerAndroid(const LayerAndroid& layer) : SkLayer(layer),
m_isRootLayer(layer.m_isRootLayer),
m_haveClip(layer.m_haveClip),
m_extra(0), // deliberately not copied
m_uniqueId(layer.m_uniqueId)
{
m_doRotation = layer.m_doRotation;
m_isFixed = layer.m_isFixed;
m_angleTransform = layer.m_angleTransform;
m_translation = layer.m_translation;
m_scale = layer.m_scale;
m_backgroundColor = layer.m_backgroundColor;
m_fixedLeft = layer.m_fixedLeft;
m_fixedTop = layer.m_fixedTop;
m_fixedRight = layer.m_fixedRight;
m_fixedBottom = layer.m_fixedBottom;
m_fixedMarginLeft = layer.m_fixedMarginLeft;
m_fixedMarginTop = layer.m_fixedMarginTop;
m_fixedMarginRight = layer.m_fixedMarginRight;
m_fixedMarginBottom = layer.m_fixedMarginBottom;
m_fixedOffset = layer.m_fixedOffset;
m_fixedWidth = layer.m_fixedWidth;
m_fixedHeight = layer.m_fixedHeight;
m_recordingPicture = layer.m_recordingPicture;
SkSafeRef(m_recordingPicture);
#if ENABLE(WEBGL)
m_context = layer.m_context;
#endif
for (int i = 0; i < layer.countChildren(); i++)
addChild(new LayerAndroid(*layer.getChild(i)))->unref();
KeyframesMap::const_iterator end = layer.m_animations.end();
for (KeyframesMap::const_iterator it = layer.m_animations.begin(); it != end; ++it)
m_animations.add((it->second)->name(), (it->second)->copy());
gDebugLayerAndroidInstances++;
}
bool BaseLayerAndroid::isReady()
{
ZoomManager* zoomManager = m_state->zoomManager();
if (ZoomManager::kNoScaleRequest != zoomManager->scaleRequestState()) {
XLOG("base layer not ready, still zooming");
return false; // still zooming
}
if (!m_state->frontPage()->isReady(m_state->preZoomBounds())) {
XLOG("base layer not ready, front page not done painting");
return false;
}
LayerAndroid* compositedRoot = static_cast<LayerAndroid*>(getChild(0));
if (compositedRoot) {
XLOG("base layer is ready, how about children?");
return compositedRoot->isReady();
}
return true;
}
void BaseLayerAndroid::updateLayerPositions(SkRect& visibleRect)
{
LayerAndroid* compositedRoot = static_cast<LayerAndroid*>(getChild(0));
TransformationMatrix ident;
compositedRoot->updateFixedLayersPositions(visibleRect);
FloatRect clip(0, 0, content()->width(), content()->height());
compositedRoot->updateGLPositionsAndScale(
ident, clip, 1, m_state->zoomManager()->layersScale());
#ifdef DEBUG
compositedRoot->showLayer(0);
XLOG("We have %d layers, %d textured",
compositedRoot->nbLayers(),
compositedRoot->nbTexturedLayers());
#endif
}
void PaintedSurface::computeTexturesAmount(TexturesResult* result)
{
if (!m_tiledTexture)
return;
// for now, always done on drawinglayer
LayerAndroid* layer = m_drawingLayer;
if (!layer)
return;
IntRect unclippedArea = layer->unclippedArea();
IntRect clippedVisibleArea = layer->visibleArea();
// get two numbers here:
// - textures needed for a clipped area
// - textures needed for an un-clipped area
int nbTexturesUnclipped = m_tiledTexture->nbTextures(unclippedArea, m_scale);
int nbTexturesClipped = m_tiledTexture->nbTextures(clippedVisibleArea, m_scale);
// Set kFixedLayers level
if (layer->isFixed())
result->fixed += nbTexturesClipped;
// Set kScrollableAndFixedLayers level
if (layer->contentIsScrollable()
|| layer->isFixed())
result->scrollable += nbTexturesClipped;
// Set kClippedTextures level
result->clipped += nbTexturesClipped;
// Set kAllTextures level
if (layer->contentIsScrollable())
result->full += nbTexturesClipped;
else
result->full += nbTexturesUnclipped;
}
void SurfaceCollection::updateScrollableLayer(int layerId, int x, int y)
{
LayerAndroid* layer = m_compositedRoot->findById(layerId);
if (layer && layer->contentIsScrollable())
static_cast<ScrollableLayerAndroid*>(layer)->scrollTo(x, y);
}
LayerAndroid::LayerAndroid(const LayerAndroid& layer) : Layer(layer),
m_uniqueId(layer.m_uniqueId),
m_haveClip(layer.m_haveClip),
m_backfaceVisibility(layer.m_backfaceVisibility),
m_visible(layer.m_visible),
m_backgroundColor(layer.m_backgroundColor),
m_preserves3D(layer.m_preserves3D),
m_anchorPointZ(layer.m_anchorPointZ),
m_isPositionAbsolute(layer.m_isPositionAbsolute),
m_fixedPosition(0),
m_zValue(layer.m_zValue),
m_content(layer.m_content),
m_imageCRC(layer.m_imageCRC),
m_scale(layer.m_scale),
m_lastComputeTextureSize(0),
m_owningLayer(layer.m_owningLayer),
m_type(LayerAndroid::UILayer),
m_intrinsicallyComposited(layer.m_intrinsicallyComposited),
m_surface(0),
m_replicatedLayer(0),
m_originalLayer(0),
m_maskLayer(0)
{
if (m_imageCRC)
ImagesManager::instance()->retainImage(m_imageCRC);
SkSafeRef(m_content);
if (layer.m_fixedPosition) {
m_fixedPosition = layer.m_fixedPosition->copy(this);
Layer::setShouldInheritFromRootTransform(true);
}
m_transform = layer.m_transform;
m_drawTransform = layer.m_drawTransform;
m_drawTransformUnfudged = layer.m_drawTransformUnfudged;
m_childrenTransform = layer.m_childrenTransform;
m_dirtyRegion = layer.m_dirtyRegion;
m_replicatedLayerPosition = layer.m_replicatedLayerPosition;
#ifdef ABSOLUTE_POSITION
// If we have absolute elements, we may need to reorder them if they
// are followed by another layer that is not also absolutely positioned.
// (as absolutely positioned elements are out of the normal flow)
bool hasAbsoluteChildren = false;
bool hasOnlyAbsoluteFollowers = true;
for (int i = 0; i < layer.countChildren(); i++) {
if (layer.getChild(i)->isPositionAbsolute()) {
hasAbsoluteChildren = true;
continue;
}
if (hasAbsoluteChildren
&& !layer.getChild(i)->isPositionAbsolute()) {
hasOnlyAbsoluteFollowers = false;
break;
}
}
if (hasAbsoluteChildren && !hasOnlyAbsoluteFollowers) {
Vector<LayerAndroid*> normalLayers;
Vector<LayerAndroid*> absoluteLayers;
for (int i = 0; i < layer.countChildren(); i++) {
LayerAndroid* child = layer.getChild(i);
if (child->isPositionAbsolute()
|| child->isPositionFixed())
absoluteLayers.append(child);
else
normalLayers.append(child);
}
for (unsigned int i = 0; i < normalLayers.size(); i++)
addChild(normalLayers[i]->copy())->unref();
for (unsigned int i = 0; i < absoluteLayers.size(); i++)
addChild(absoluteLayers[i]->copy())->unref();
} else {
for (int i = 0; i < layer.countChildren(); i++)
addChild(layer.getChild(i)->copy())->unref();
}
#else
for (int i = 0; i < layer.countChildren(); i++)
addChild(layer.getChild(i)->copy())->unref();
#endif
KeyframesMap::const_iterator end = layer.m_animations.end();
for (KeyframesMap::const_iterator it = layer.m_animations.begin(); it != end; ++it) {
m_animations.add(it->first, it->second);
}
if (layer.m_replicatedLayer) {
// The replicated layer is always the first child
m_replicatedLayer = getChild(0);
m_replicatedLayer->setOriginalLayer(this);
}
if (layer.m_maskLayer)
m_maskLayer = layer.m_maskLayer->copy();
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("LayerAndroid - recopy (UI)");
ClassTracker::instance()->add(this);
#endif
}
LayerAndroid* deserializeLayer(int version, SkStream* stream)
{
int type = stream->readU8();
if (type == LTNone)
return 0;
// Cast is to disambiguate between ctors.
LayerAndroid *layer;
if (type == LTLayerAndroid)
layer = new LayerAndroid((RenderLayer*) 0);
else if (type == LTScrollableLayerAndroid)
layer = new ScrollableLayerAndroid((RenderLayer*) 0);
else {
ALOGV("Unexpected layer type: %d, aborting!", type);
return 0;
}
// Layer fields
layer->setShouldInheritFromRootTransform(stream->readBool());
layer->setOpacity(stream->readScalar());
layer->setSize(stream->readScalar(), stream->readScalar());
layer->setPosition(stream->readScalar(), stream->readScalar());
layer->setAnchorPoint(stream->readScalar(), stream->readScalar());
layer->setMatrix(readMatrix(stream));
layer->setChildrenMatrix(readMatrix(stream));
// LayerAndroid fields
layer->m_haveClip = stream->readBool();
// Keep the legacy serialization/deserialization format...
bool isFixed = stream->readBool();
layer->m_backgroundColorSet = stream->readBool();
bool isIframe = stream->readBool();
// If we are a scrollable layer android, we are an iframe content
if (isIframe && type == LTScrollableLayerAndroid) {
IFrameContentLayerAndroid* iframeContent = new IFrameContentLayerAndroid(*layer);
layer->unref();
layer = iframeContent;
} else if (isIframe) { // otherwise we are just the iframe (we use it to compute offset)
IFrameLayerAndroid* iframe = new IFrameLayerAndroid(*layer);
layer->unref();
layer = iframe;
}
if (isFixed) {
FixedPositioning* fixedPosition = new FixedPositioning(layer);
fixedPosition->m_fixedLeft = readSkLength(stream);
fixedPosition->m_fixedTop = readSkLength(stream);
fixedPosition->m_fixedRight = readSkLength(stream);
fixedPosition->m_fixedBottom = readSkLength(stream);
fixedPosition->m_fixedMarginLeft = readSkLength(stream);
fixedPosition->m_fixedMarginTop = readSkLength(stream);
fixedPosition->m_fixedMarginRight = readSkLength(stream);
fixedPosition->m_fixedMarginBottom = readSkLength(stream);
fixedPosition->m_fixedRect = readSkRect(stream);
fixedPosition->m_renderLayerPos.setX(stream->readS32());
fixedPosition->m_renderLayerPos.setY(stream->readS32());
layer->setFixedPosition(fixedPosition);
} else {
// Not a fixed element, bypass the values in the stream
readSkLength(stream); // fixedLeft
readSkLength(stream); // fixedTop
readSkLength(stream); // fixedRight
readSkLength(stream); // fixedBottom
readSkLength(stream); // fixedMarginLeft
readSkLength(stream); // fixedMarginTop
readSkLength(stream); // fixedMarginRight
readSkLength(stream); // fixedMarginBottom
readSkRect(stream); // fixedRect
stream->readS32(); // renderLayerPos.x()
stream->readS32(); // renderLayerPos.y()
}
layer->m_backfaceVisibility = stream->readBool();
layer->m_visible = stream->readBool();
layer->m_backgroundColor = stream->readU32();
layer->m_preserves3D = stream->readBool();
layer->m_anchorPointZ = stream->readScalar();
layer->m_drawOpacity = stream->readScalar();
bool hasContentsImage = stream->readBool();
if (hasContentsImage) {
int size = stream->readU32();
SkAutoMalloc storage(size);
stream->read(storage.get(), size);
SkFlattenableReadBuffer buffer(storage.get(), size);
SkBitmap contentsImage;
contentsImage.unflatten(buffer);
SkBitmapRef* imageRef = new SkBitmapRef(contentsImage);
layer->setContentsImage(imageRef);
delete imageRef;
}
bool hasRecordingPicture = stream->readBool();
if (hasRecordingPicture) {
SkPicture* picture = new SkPicture(stream);
PictureLayerContent* content = new PictureLayerContent(picture);
layer->setContent(content);
SkSafeUnref(content);
SkSafeUnref(picture);
}
int animationCount = stream->readU32(); // TODO: Support (maybe?)
readTransformationMatrix(stream, layer->m_transform);
readTransformationMatrix(stream, layer->m_childrenTransform);
if (type == LTScrollableLayerAndroid) {
ScrollableLayerAndroid* scrollableLayer =
static_cast<ScrollableLayerAndroid*>(layer);
scrollableLayer->m_scrollLimits.set(
stream->readScalar(),
stream->readScalar(),
stream->readScalar(),
stream->readScalar());
}
int childCount = stream->readU32();
for (int i = 0; i < childCount; i++) {
LayerAndroid *childLayer = deserializeLayer(version, stream);
if (childLayer)
layer->addChild(childLayer);
}
ALOGV("Created layer with id %d", layer->uniqueId());
return layer;
}
LayerAndroid* deserializeLayer(SkStream* stream)
{
int type = stream->readU8();
if (type == LTNone)
return 0;
// Cast is to disambiguate between ctors.
LayerAndroid *layer;
if (type == LTLayerAndroid)
layer = new LayerAndroid((RenderLayer*) 0);
else if (type == LTScrollableLayerAndroid)
layer = new ScrollableLayerAndroid((RenderLayer*) 0);
else {
XLOG("Unexpected layer type: %d, aborting!", type);
return 0;
}
// Layer fields
layer->setShouldInheritFromRootTransform(stream->readBool());
layer->setOpacity(stream->readScalar());
layer->setSize(stream->readScalar(), stream->readScalar());
layer->setPosition(stream->readScalar(), stream->readScalar());
layer->setAnchorPoint(stream->readScalar(), stream->readScalar());
layer->setMatrix(readMatrix(stream));
layer->setChildrenMatrix(readMatrix(stream));
// LayerAndroid fields
layer->m_haveClip = stream->readBool();
layer->m_isFixed = stream->readBool();
layer->m_backgroundColorSet = stream->readBool();
layer->m_isIframe = stream->readBool();
layer->m_fixedLeft = readSkLength(stream);
layer->m_fixedTop = readSkLength(stream);
layer->m_fixedRight = readSkLength(stream);
layer->m_fixedBottom = readSkLength(stream);
layer->m_fixedMarginLeft = readSkLength(stream);
layer->m_fixedMarginTop = readSkLength(stream);
layer->m_fixedMarginRight = readSkLength(stream);
layer->m_fixedMarginBottom = readSkLength(stream);
layer->m_fixedRect = readSkRect(stream);
layer->m_renderLayerPos.setX(stream->readS32());
layer->m_renderLayerPos.setY(stream->readS32());
layer->m_backfaceVisibility = stream->readBool();
layer->m_visible = stream->readBool();
layer->m_backgroundColor = stream->readU32();
layer->m_preserves3D = stream->readBool();
layer->m_anchorPointZ = stream->readScalar();
layer->m_drawOpacity = stream->readScalar();
bool hasContentsImage = stream->readBool();
if (hasContentsImage) {
int size = stream->readU32();
SkAutoMalloc storage(size);
stream->read(storage.get(), size);
SkFlattenableReadBuffer buffer(storage.get(), size);
SkBitmap contentsImage;
contentsImage.unflatten(buffer);
SkBitmapRef* imageRef = new SkBitmapRef(contentsImage);
layer->setContentsImage(imageRef);
delete imageRef;
}
bool hasRecordingPicture = stream->readBool();
if (hasRecordingPicture) {
layer->m_recordingPicture = new SkPicture(stream);
}
int animationCount = stream->readU32(); // TODO: Support (maybe?)
readTransformationMatrix(stream, layer->m_transform);
readTransformationMatrix(stream, layer->m_childrenTransform);
if (type == LTScrollableLayerAndroid) {
ScrollableLayerAndroid* scrollableLayer =
static_cast<ScrollableLayerAndroid*>(layer);
scrollableLayer->m_scrollLimits.set(
stream->readScalar(),
stream->readScalar(),
stream->readScalar(),
stream->readScalar());
}
int childCount = stream->readU32();
for (int i = 0; i < childCount; i++) {
LayerAndroid *childLayer = deserializeLayer(stream);
if (childLayer)
layer->addChild(childLayer);
}
layer->needsRepaint();
XLOG("Created layer with id %d", layer->uniqueId());
return layer;
}
bool TreeManager::drawGL(double currentTime, IntRect& viewRect,
SkRect& visibleRect, float scale,
bool enterFastSwapMode, bool* treesSwappedPtr, bool* newTreeHasAnimPtr,
TexturesResult* texturesResultPtr)
{
m_fastSwapMode |= enterFastSwapMode;
XLOG("drawGL, D %p, P %p, Q %p, fastSwap %d",
m_drawingTree, m_paintingTree, m_queuedTree, m_fastSwapMode);
bool ret = false;
bool didTreeSwap = false;
if (m_paintingTree) {
XLOG("preparing painting tree %p", m_paintingTree);
LayerAndroid* laTree = 0;
if (m_paintingTree->countChildren()) {
laTree = static_cast<LayerAndroid*>(m_paintingTree->getChild(0));
ret |= laTree->evaluateAnimations(currentTime);
}
ret |= m_paintingTree->prepare(currentTime, viewRect,
visibleRect, scale);
if (laTree)
laTree->computeTexturesAmount(texturesResultPtr);
if (/*!m_fastSwapMode && */ m_paintingTree->isReady()) {
XLOG("have painting tree %p ready, swapping!", m_paintingTree);
didTreeSwap = true;
swap();
if (treesSwappedPtr)
*treesSwappedPtr = true;
if (laTree && newTreeHasAnimPtr)
*newTreeHasAnimPtr = laTree->hasAnimations();
}
} else if (m_drawingTree) {
XLOG("preparing drawing tree %p", m_drawingTree);
ret |= m_drawingTree->prepare(currentTime, viewRect,
visibleRect, scale);
if (m_drawingTree->countChildren()) {
LayerAndroid* laTree = static_cast<LayerAndroid*>(m_drawingTree->getChild(0));
laTree->computeTexturesAmount(texturesResultPtr);
}
}
if (m_drawingTree) {
bool drawingReady = didTreeSwap || m_drawingTree->isReady();
if (didTreeSwap || m_fastSwapMode || (drawingReady && !m_paintingTree))
m_drawingTree->swapTiles();
if (drawingReady) {
// exit fast swap mode, as content is up to date
m_fastSwapMode = false;
} else {
// drawing isn't ready, must redraw
ret = true;
}
if (m_drawingTree->countChildren()) {
LayerAndroid* laTree = static_cast<LayerAndroid*>(m_drawingTree->getChild(0));
ret |= laTree->evaluateAnimations(currentTime);
}
XLOG("drawing tree %p", m_drawingTree);
ret |= m_drawingTree->drawGL(viewRect, visibleRect, scale);
} else if (m_paintingTree && m_paintingTree->state()) {
// Dont have a drawing tree, draw white background
Color defaultBackground = Color::white;
m_paintingTree->state()->drawBackground(defaultBackground);
}
if (m_paintingTree) {
XLOG("still have painting tree %p", m_paintingTree);
return true;
}
return ret;
}