void HTMLCanvasElement::paint(GraphicsContext* context, const LayoutRect& r, bool useLowQualityScale)
{
// Clear the dirty rect
m_dirtyRect = FloatRect();
if (context->paintingDisabled())
return;
if (m_context) {
if (!paintsIntoCanvasBuffer() && !document().printing())
return;
m_context->paintRenderingResultsToCanvas();
}
if (hasCreatedImageBuffer()) {
ImageBuffer* imageBuffer = buffer();
if (imageBuffer) {
if (m_presentedImage) {
ImageOrientationDescription orientationDescription;
#if ENABLE(CSS_IMAGE_ORIENTATION)
orientationDescription.setImageOrientationEnum(renderer()->style().imageOrientation());
#endif
context->drawImage(m_presentedImage.get(), ColorSpaceDeviceRGB, pixelSnappedIntRect(r), ImagePaintingOptions(orientationDescription, useLowQualityScale));
} else
context->drawImageBuffer(imageBuffer, ColorSpaceDeviceRGB, pixelSnappedIntRect(r), useLowQualityScale);
}
}
#if ENABLE(WEBGL)
if (is3D())
static_cast<WebGLRenderingContext*>(m_context.get())->markLayerComposited();
#endif
}
void RenderSnapshottedPlugIn::paintSnapshot(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
Image* image = m_snapshotResource->image().get();
if (!image || image->isNull())
return;
LayoutUnit cWidth = contentWidth();
LayoutUnit cHeight = contentHeight();
if (!cWidth || !cHeight)
return;
GraphicsContext* context = paintInfo.context;
#if PLATFORM(MAC)
if (style()->highlight() != nullAtom && !context->paintingDisabled())
paintCustomHighlight(toPoint(paintOffset - location()), style()->highlight(), true);
#endif
LayoutSize contentSize(cWidth, cHeight);
LayoutPoint contentLocation = location() + paintOffset;
contentLocation.move(borderLeft() + paddingLeft(), borderTop() + paddingTop());
LayoutRect rect(contentLocation, contentSize);
IntRect alignedRect = pixelSnappedIntRect(rect);
if (alignedRect.width() <= 0 || alignedRect.height() <= 0)
return;
bool useLowQualityScaling = shouldPaintAtLowQuality(context, image, image, alignedRect.size());
ImageOrientationDescription orientationDescription;
#if ENABLE(CSS_IMAGE_ORIENTATION)
orientationDescription.setImageOrientationEnum(style()->imageOrientation());
#endif
context->drawImage(image, style()->colorSpace(), alignedRect, CompositeSourceOver, orientationDescription, useLowQualityScaling);
}
static DragImageRef createDragImageFromSnapshot(std::unique_ptr<ImageBuffer> snapshot, Node* node)
{
if (!snapshot)
return nullptr;
ImageOrientationDescription orientation;
#if ENABLE(CSS_IMAGE_ORIENTATION)
if (node) {
RenderObject* renderer = node->renderer();
if (!renderer)
return nullptr;
orientation.setRespectImageOrientation(renderer->shouldRespectImageOrientation());
orientation.setImageOrientationEnum(renderer->style().imageOrientation());
}
#else
UNUSED_PARAM(node);
#endif
RefPtr<Image> image = snapshot->copyImage(ImageBuffer::fastCopyImageMode());
if (!image)
return nullptr;
return createDragImageFromImage(image.get(), orientation);
}