void HTMLCanvasElement::paint(GraphicsContext* context, const IntRect& r)
{
// Clear the dirty rect
m_dirtyRect = FloatRect();
if (context->paintingDisabled())
return;
if (m_context) {
if (!m_context->paintsIntoCanvasBuffer())
return;
m_context->paintRenderingResultsToCanvas();
}
if (hasCreatedImageBuffer()) {
ImageBuffer* imageBuffer = buffer();
if (imageBuffer) {
if(imageBuffer->drawsUsingRecording())
return;
if (m_presentedImage)
context->drawImage(m_presentedImage.get(), ColorSpaceDeviceRGB, r);
else if (imageBuffer->drawsUsingCopy())
context->drawImage(copiedImage(), ColorSpaceDeviceRGB, r);
else
context->drawImageBuffer(imageBuffer, ColorSpaceDeviceRGB, r);
}
}
#if ENABLE(WEBGL)
if (is3D())
static_cast<WebGLRenderingContext*>(m_context.get())->markLayerComposited();
#endif
#if ENABLE(DASHBOARD_SUPPORT)
Settings* settings = document()->settings();
if (settings && settings->usesDashboardBackwardCompatibilityMode())
setIeForbidsInsertHTML();
#endif
}
CanvasLayer::CanvasLayer(const CanvasLayer& layer)
: LayerAndroid(layer)
, m_canvas(0)
, m_bitmap(0)
, m_gpuCanvas(0)
{
init();
if (!layer.m_canvas) {
// The canvas has already been destroyed - this shouldn't happen
ALOGW("Creating a CanvasLayer for a destroyed canvas!");
m_visibleContentRect = IntRect();
m_offsetFromRenderer = IntSize();
m_texture->setHwAccelerated(false);
return;
}
// We are making a copy for the UI, sync the interesting bits
m_visibleContentRect = layer.visibleContentRect();
m_offsetFromRenderer = layer.offsetFromRenderer();
bool previousState = m_texture->hasValidTexture();
if(layer.m_canvas->isUsingGpuRendering())
return;
ImageBuffer* imageBuffer = layer.m_canvas->buffer();
if (!previousState && layer.m_dirtyCanvas.isEmpty() && imageBuffer && !(imageBuffer->drawsUsingRecording())) {
// We were previously in software and don't have anything new to draw,
// so stay in software
m_bitmap = layer.bitmap();
SkSafeRef(m_bitmap);
} else {
if(imageBuffer && imageBuffer->drawsUsingRecording() && !layer.m_canvas->isUsingGpuRendering())
{
bool canUseGpuRendering = imageBuffer->canUseGpuRendering();
if(canUseGpuRendering && layer.m_canvas->canUseGpuRendering())
{
layer.m_canvas->enableGpuRendering();
CanvasLayer::setGpuCanvasStatus(layer.uniqueId(), true);
}
}
// If recording is being used
if(imageBuffer && imageBuffer->drawsUsingRecording())
{
GraphicsContext* gc = imageBuffer->context();
//SkPicture* canvasRecording = gc->platformContext()->getRecordingPicture();
SkPicture* canvasRecording = CanvasLayer::getRecordingPicture(this);
SkBitmap* bitmap = CanvasLayer::getRecordingBitmap(this);
SkCanvas* canvas = CanvasLayer::getRecordingCanvas(this);
if(canvasRecording == NULL)
return;
if(bitmap == NULL || bitmap->width() != canvasRecording->width()
|| bitmap->height() != canvasRecording->height())
{
SkBitmap* newBitmap = new SkBitmap();
newBitmap->setConfig(SkBitmap::kARGB_8888_Config, canvasRecording->width(), canvasRecording->height());
newBitmap->allocPixels();
newBitmap->eraseColor(0);
CanvasLayer::setRecordingBitmap(newBitmap, this);
bitmap = newBitmap;
if(canvas != NULL)
canvas->setBitmapDevice(*bitmap);
}
if(canvas == NULL)
{
canvas = new SkCanvas();
canvas->setBitmapDevice(*bitmap);
CanvasLayer::setRecordingCanvas(canvas, this);
}
canvas->drawARGB(0, 0, 0, 0, SkXfermode::kClear_Mode);
canvasRecording->draw(canvas);
if (!m_texture->uploadImageBitmap(bitmap)) {
//SLOGD("+++++++++++++++++++++ Didn't upload bitmap .. fall back to software");
// TODO:: Fix this
}
}
else
{
if (!m_texture->uploadImageBuffer(layer.m_canvas->buffer())) {
// Blargh, no surface texture or ImageBuffer - fall back to software
m_bitmap = layer.bitmap();
SkSafeRef(m_bitmap);
// Merge the canvas invals with the layer's invals to repaint the needed
// tiles.
SkRegion::Iterator iter(layer.m_dirtyCanvas);
const IntPoint& offset = m_visibleContentRect.location();
for (; !iter.done(); iter.next()) {
SkIRect diff = iter.rect();
diff.fLeft += offset.x();
diff.fRight += offset.x();
diff.fTop += offset.y();
diff.fBottom += offset.y();
m_dirtyRegion.op(diff, SkRegion::kUnion_Op);
}
}else{
ImageBuffer* imageBuffer = layer.m_canvas->buffer();
bool recordingCanvasEnabled = layer.m_canvas->isRecordingCanvasEnabled();
if(recordingCanvasEnabled && imageBuffer && imageBuffer->isAnimating()){
SLOGD("[%s] Animation detected. Converting the HTML5 canvas buffer to a SkPicture.", __FUNCTION__);
imageBuffer->convertToRecording();
}
}//End of non-recording
}
if (previousState != m_texture->hasValidTexture()) {
// Need to do a full inval of the canvas content as we are mode switching
m_dirtyRegion.op(m_visibleContentRect.x(), m_visibleContentRect.y(),
m_visibleContentRect.maxX(), m_visibleContentRect.maxY(), SkRegion::kUnion_Op);
}
}
}