void FEGaussianBlur::platformApplySoftware()
{
FilterEffect* in = inputEffect(0);
Uint8ClampedArray* srcPixelArray = createPremultipliedImageResult();
if (!srcPixelArray)
return;
setIsAlphaImage(in->isAlphaImage());
IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
in->copyPremultipliedImage(srcPixelArray, effectDrawingRect);
if (!m_stdX && !m_stdY)
return;
IntSize kernelSize = calculateKernelSize(filter(), FloatPoint(m_stdX, m_stdY));
kernelSize.scale(filter().filterScale());
IntSize paintSize = absolutePaintRect().size();
paintSize.scale(filter().filterScale());
RefPtr<Uint8ClampedArray> tmpImageData = Uint8ClampedArray::createUninitialized((paintSize.area() * 4).unsafeGet());
if (!tmpImageData) {
WTFLogAlways("FEGaussianBlur::platformApplySoftware Unable to create buffer. Requested size was %d x %d\n", paintSize.width(), paintSize.height());
return;
}
platformApply(srcPixelArray, tmpImageData.get(), kernelSize.width(), kernelSize.height(), paintSize);
}
void RenderStyle::getBorderRadiiForRect(const IntRect& r, IntSize& topLeft, IntSize& topRight, IntSize& bottomLeft, IntSize& bottomRight) const
{
topLeft = surround->border.topLeft;
topRight = surround->border.topRight;
bottomLeft = surround->border.bottomLeft;
bottomRight = surround->border.bottomRight;
// Constrain corner radii using CSS3 rules:
// http://www.w3.org/TR/css3-background/#the-border-radius
float factor = 1;
unsigned radiiSum;
// top
radiiSum = static_cast<unsigned>(topLeft.width()) + static_cast<unsigned>(topRight.width()); // Casts to avoid integer overflow.
if (radiiSum > static_cast<unsigned>(r.width()))
factor = min(static_cast<float>(r.width()) / radiiSum, factor);
// bottom
radiiSum = static_cast<unsigned>(bottomLeft.width()) + static_cast<unsigned>(bottomRight.width());
if (radiiSum > static_cast<unsigned>(r.width()))
factor = min(static_cast<float>(r.width()) / radiiSum, factor);
// left
radiiSum = static_cast<unsigned>(topLeft.height()) + static_cast<unsigned>(bottomLeft.height());
if (radiiSum > static_cast<unsigned>(r.height()))
factor = min(static_cast<float>(r.height()) / radiiSum, factor);
// right
radiiSum = static_cast<unsigned>(topRight.height()) + static_cast<unsigned>(bottomRight.height());
if (radiiSum > static_cast<unsigned>(r.height()))
factor = min(static_cast<float>(r.height()) / radiiSum, factor);
// Scale all radii by f if necessary.
if (factor < 1) {
// If either radius on a corner becomes zero, reset both radii on that corner.
topLeft.scale(factor);
if (!topLeft.width() || !topLeft.height())
topLeft = IntSize();
topRight.scale(factor);
if (!topRight.width() || !topRight.height())
topRight = IntSize();
bottomLeft.scale(factor);
if (!bottomLeft.width() || !bottomLeft.height())
bottomLeft = IntSize();
bottomRight.scale(factor);
if (!bottomRight.width() || !bottomRight.height())
bottomRight = IntSize();
}
}
IntSize TileController::tileSize() const
{
if (m_inLiveResize || m_tileSizeLocked)
return tileGrid().tileSize();
const int kLowestCommonDenominatorMaxTileSize = 4 * 1024;
IntSize maxTileSize(kLowestCommonDenominatorMaxTileSize, kLowestCommonDenominatorMaxTileSize);
#if USE(IOSURFACE)
IntSize surfaceSizeLimit = IOSurface::maximumSize();
surfaceSizeLimit.scale(1 / m_deviceScaleFactor);
maxTileSize = maxTileSize.shrunkTo(surfaceSizeLimit);
#endif
if (owningGraphicsLayer()->platformCALayerUseGiantTiles())
return maxTileSize;
IntSize tileSize(kDefaultTileSize, kDefaultTileSize);
if (m_scrollability == NotScrollable) {
IntSize scaledSize = expandedIntSize(boundsWithoutMargin().size() * tileGrid().scale());
tileSize = scaledSize.constrainedBetween(IntSize(kDefaultTileSize, kDefaultTileSize), maxTileSize);
} else if (m_scrollability == VerticallyScrollable)
tileSize.setWidth(std::min(std::max<int>(ceilf(boundsWithoutMargin().width() * tileGrid().scale()), kDefaultTileSize), maxTileSize.width()));
LOG_WITH_STREAM(Scrolling, stream << "TileController::tileSize newSize=" << tileSize);
m_tileSizeLocked = true;
return tileSize;
}
void CCLayerTreeHostImpl::computeDoubleTapZoomDeltas(CCScrollAndScaleSet* scrollInfo)
{
float pageScale = m_pageScaleAnimation->finalPageScale();
IntSize scrollOffset = m_pageScaleAnimation->finalScrollOffset();
scrollOffset.scale(m_pageScale / pageScale);
makeScrollAndScaleSet(scrollInfo, scrollOffset, pageScale);
}
IntSize CCPageScaleAnimation::scrollOffsetAtRatio(float ratio) const
{
if (ratio <= 0)
return m_scrollStart;
if (ratio >= 1)
return m_scrollEnd;
float currentPageScale = pageScaleAtRatio(ratio);
IntSize currentScrollOffset;
if (m_anchorMode) {
// Keep the anchor stable on the screen at the current scale.
IntSize documentAnchor = m_scrollStart + m_anchor;
documentAnchor.scale(currentPageScale / m_pageScaleStart);
currentScrollOffset = documentAnchor - m_anchor;
} else {
// First move both scroll offsets to the current coordinate space.
FloatSize scaledStartScroll(m_scrollStart);
scaledStartScroll.scale(currentPageScale / m_pageScaleStart);
FloatSize scaledEndScroll(m_scrollEnd);
scaledEndScroll.scale(currentPageScale / m_pageScaleEnd);
// Linearly interpolate between them.
FloatSize delta = scaledEndScroll - scaledStartScroll;
delta.scale(ratio);
currentScrollOffset = roundedIntSize(scaledStartScroll + delta);
}
return currentScrollOffset;
}
bool FindController::getFindIndicatorBitmapAndRect(Frame* frame, ShareableBitmap::Handle& handle, IntRect& selectionRect)
{
selectionRect = enclosingIntRect(frame->selection()->bounds());
// Selection rect can be empty for matches that are currently obscured from view.
if (selectionRect.isEmpty())
return false;
IntSize backingStoreSize = selectionRect.size();
backingStoreSize.scale(m_webPage->corePage()->deviceScaleFactor());
// Create a backing store and paint the find indicator text into it.
RefPtr<ShareableBitmap> findIndicatorTextBackingStore = ShareableBitmap::createShareable(backingStoreSize, ShareableBitmap::SupportsAlpha);
if (!findIndicatorTextBackingStore)
return false;
OwnPtr<GraphicsContext> graphicsContext = findIndicatorTextBackingStore->createGraphicsContext();
graphicsContext->scale(FloatSize(m_webPage->corePage()->deviceScaleFactor(), m_webPage->corePage()->deviceScaleFactor()));
IntRect paintRect = selectionRect;
paintRect.move(frame->view()->frameRect().x(), frame->view()->frameRect().y());
paintRect.move(-frame->view()->scrollOffset());
graphicsContext->translate(-paintRect.x(), -paintRect.y());
frame->view()->setPaintBehavior(PaintBehaviorSelectionOnly | PaintBehaviorForceBlackText | PaintBehaviorFlattenCompositingLayers);
frame->document()->updateLayout();
frame->view()->paint(graphicsContext.get(), paintRect);
frame->view()->setPaintBehavior(PaintBehaviorNormal);
if (!findIndicatorTextBackingStore->createHandle(handle))
return false;
return true;
}
IntSize DrawingBuffer::adjustSize(const IntSize& size) {
IntSize adjustedSize = size;
// Clamp if the desired size is greater than the maximum texture size for the device.
if (adjustedSize.height() > m_maxTextureSize)
adjustedSize.setHeight(m_maxTextureSize);
if (adjustedSize.width() > m_maxTextureSize)
adjustedSize.setWidth(m_maxTextureSize);
// Try progressively smaller sizes until we find a size that fits or reach a scale limit.
int scaleAttempts = 0;
while ((s_currentResourceUsePixels + pixelDelta(adjustedSize)) > s_maximumResourceUsePixels) {
scaleAttempts++;
if (scaleAttempts > s_maxScaleAttempts)
return IntSize();
adjustedSize.scale(s_resourceAdjustedRatio);
if (adjustedSize.isEmpty())
return IntSize();
}
return adjustedSize;
}
std::unique_ptr<BackingStoreBackendCairo> BackingStore::createBackend()
{
#if PLATFORM(GTK) && PLATFORM(X11)
const auto& sharedDisplay = PlatformDisplay::sharedDisplay();
if (is<PlatformDisplayX11>(sharedDisplay)) {
GdkVisual* visual = gtk_widget_get_visual(m_webPageProxy.viewWidget());
GdkScreen* screen = gdk_visual_get_screen(visual);
ASSERT(downcast<PlatformDisplayX11>(sharedDisplay).native() == GDK_SCREEN_XDISPLAY(screen));
return std::make_unique<BackingStoreBackendCairoX11>(downcast<PlatformDisplayX11>(sharedDisplay).native(), GDK_WINDOW_XID(gdk_screen_get_root_window(screen)),
GDK_VISUAL_XVISUAL(visual), gdk_visual_get_depth(visual), m_size, m_deviceScaleFactor);
}
#endif
IntSize scaledSize = m_size;
scaledSize.scale(m_deviceScaleFactor);
#if PLATFORM(GTK)
RefPtr<cairo_surface_t> surface = adoptRef(gdk_window_create_similar_surface(gtk_widget_get_window(m_webPageProxy.viewWidget()),
CAIRO_CONTENT_COLOR_ALPHA, scaledSize.width(), scaledSize.height()));
#else
RefPtr<cairo_surface_t> surface = adoptRef(cairo_image_surface_create(CAIRO_FORMAT_ARGB32, scaledSize.width(), scaledSize.height()));
#endif
cairoSurfaceSetDeviceScale(surface.get(), m_deviceScaleFactor, m_deviceScaleFactor);
return std::make_unique<BackingStoreBackendCairoImpl>(surface.get(), m_size);
}
static PassRefPtr<WebImage> imageForRect(FrameView* frameView, const IntRect& rect, SnapshotOptions options)
{
IntSize bitmapSize = rect.size();
float scaleFactor = frameView->frame().page()->deviceScaleFactor();
bitmapSize.scale(scaleFactor);
auto snapshot = WebImage::create(bitmapSize, snapshotOptionsToImageOptions(options));
if (!snapshot->bitmap())
return 0;
auto graphicsContext = snapshot->bitmap()->createGraphicsContext();
graphicsContext->clearRect(IntRect(IntPoint(), bitmapSize));
graphicsContext->applyDeviceScaleFactor(scaleFactor);
graphicsContext->translate(-rect.x(), -rect.y());
FrameView::SelectionInSnapshot shouldPaintSelection = FrameView::IncludeSelection;
if (options & SnapshotOptionsExcludeSelectionHighlighting)
shouldPaintSelection = FrameView::ExcludeSelection;
PaintBehavior paintBehavior = frameView->paintBehavior() | PaintBehaviorFlattenCompositingLayers;
if (options & SnapshotOptionsForceBlackText)
paintBehavior |= PaintBehaviorForceBlackText;
if (options & SnapshotOptionsForceWhiteText)
paintBehavior |= PaintBehaviorForceWhiteText;
PaintBehavior oldPaintBehavior = frameView->paintBehavior();
frameView->setPaintBehavior(paintBehavior);
frameView->paintContentsForSnapshot(*graphicsContext.get(), rect, shouldPaintSelection, FrameView::DocumentCoordinates);
frameView->setPaintBehavior(oldPaintBehavior);
return snapshot;
}
void ScrollableAreaPainter::drawPlatformResizerImage(GraphicsContext* context, IntRect resizerCornerRect)
{
float deviceScaleFactor = blink::deviceScaleFactor(m_scrollableArea.box().frame());
RefPtr<Image> resizeCornerImage;
IntSize cornerResizerSize;
if (deviceScaleFactor >= 2) {
DEFINE_STATIC_REF(Image, resizeCornerImageHiRes, (Image::loadPlatformResource("textAreaResizeCorner@2x")));
resizeCornerImage = resizeCornerImageHiRes;
cornerResizerSize = resizeCornerImage->size();
cornerResizerSize.scale(0.5f);
} else {
DEFINE_STATIC_REF(Image, resizeCornerImageLoRes, (Image::loadPlatformResource("textAreaResizeCorner")));
resizeCornerImage = resizeCornerImageLoRes;
cornerResizerSize = resizeCornerImage->size();
}
if (m_scrollableArea.box().style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft()) {
context->save();
context->translate(resizerCornerRect.x() + cornerResizerSize.width(), resizerCornerRect.y() + resizerCornerRect.height() - cornerResizerSize.height());
context->scale(-1.0, 1.0);
context->drawImage(resizeCornerImage.get(), IntRect(IntPoint(), cornerResizerSize));
context->restore();
return;
}
IntRect imageRect(resizerCornerRect.maxXMaxYCorner() - cornerResizerSize, cornerResizerSize);
context->drawImage(resizeCornerImage.get(), imageRect);
}
bool FindController::updateFindIndicator(Frame* selectedFrame, bool isShowingOverlay, bool shouldAnimate)
{
if (!selectedFrame)
return false;
IntRect selectionRect = enclosingIntRect(selectedFrame->selection()->bounds());
// Selection rect can be empty for matches that are currently obscured from view.
if (selectionRect.isEmpty())
return false;
// We want the selection rect in window coordinates.
IntRect selectionRectInWindowCoordinates = selectedFrame->view()->contentsToWindow(selectionRect);
Vector<FloatRect> textRects;
selectedFrame->selection()->getClippedVisibleTextRectangles(textRects);
IntSize backingStoreSize = selectionRect.size();
backingStoreSize.scale(m_webPage->corePage()->deviceScaleFactor());
// Create a backing store and paint the find indicator text into it.
RefPtr<ShareableBitmap> findIndicatorTextBackingStore = ShareableBitmap::createShareable(backingStoreSize, ShareableBitmap::SupportsAlpha);
if (!findIndicatorTextBackingStore)
return false;
OwnPtr<GraphicsContext> graphicsContext = findIndicatorTextBackingStore->createGraphicsContext();
graphicsContext->scale(FloatSize(m_webPage->corePage()->deviceScaleFactor(), m_webPage->corePage()->deviceScaleFactor()));
IntRect paintRect = selectionRect;
paintRect.move(selectedFrame->view()->frameRect().x(), selectedFrame->view()->frameRect().y());
paintRect.move(-selectedFrame->view()->scrollOffset());
graphicsContext->translate(-paintRect.x(), -paintRect.y());
selectedFrame->view()->setPaintBehavior(PaintBehaviorSelectionOnly | PaintBehaviorForceBlackText | PaintBehaviorFlattenCompositingLayers);
selectedFrame->document()->updateLayout();
selectedFrame->view()->paint(graphicsContext.get(), paintRect);
selectedFrame->view()->setPaintBehavior(PaintBehaviorNormal);
ShareableBitmap::Handle handle;
if (!findIndicatorTextBackingStore->createHandle(handle))
return false;
// We want the text rects in selection rect coordinates.
Vector<FloatRect> textRectsInSelectionRectCoordinates;
for (size_t i = 0; i < textRects.size(); ++i) {
IntRect textRectInSelectionRectCoordinates = selectedFrame->view()->contentsToWindow(enclosingIntRect(textRects[i]));
textRectInSelectionRectCoordinates.move(-selectionRectInWindowCoordinates.x(), -selectionRectInWindowCoordinates.y());
textRectsInSelectionRectCoordinates.append(textRectInSelectionRectCoordinates);
}
m_webPage->send(Messages::WebPageProxy::SetFindIndicator(selectionRectInWindowCoordinates, textRectsInSelectionRectCoordinates, m_webPage->corePage()->deviceScaleFactor(), handle, !isShowingOverlay, shouldAnimate));
m_findIndicatorRect = selectionRectInWindowCoordinates;
m_isShowingFindIndicator = true;
return true;
}
void CoordinatedDrawingArea::display(UpdateInfo& updateInfo)
{
ASSERT(!m_isPaintingSuspended);
ASSERT(!m_layerTreeHost);
ASSERT(!m_webPage.size().isEmpty());
m_webPage.layoutIfNeeded();
// The layout may have put the page into accelerated compositing mode. If the LayerTreeHost is
// in charge of displaying, we have nothing more to do.
if (m_layerTreeHost)
return;
updateInfo.viewSize = m_webPage.size();
updateInfo.deviceScaleFactor = m_webPage.corePage()->deviceScaleFactor();
IntRect bounds = m_dirtyRegion.bounds();
ASSERT(m_webPage.bounds().contains(bounds));
IntSize bitmapSize = bounds.size();
float deviceScaleFactor = m_webPage.corePage()->deviceScaleFactor();
bitmapSize.scale(deviceScaleFactor);
RefPtr<ShareableBitmap> bitmap = ShareableBitmap::createShareable(bitmapSize, ShareableBitmap::SupportsAlpha);
if (!bitmap)
return;
if (!bitmap->createHandle(updateInfo.bitmapHandle))
return;
Vector<IntRect> rects = m_dirtyRegion.rects();
if (shouldPaintBoundsRect(bounds, rects)) {
rects.clear();
rects.append(bounds);
}
updateInfo.scrollRect = m_scrollRect;
updateInfo.scrollOffset = m_scrollOffset;
m_dirtyRegion = Region();
m_scrollRect = IntRect();
m_scrollOffset = IntSize();
auto graphicsContext = bitmap->createGraphicsContext();
graphicsContext->applyDeviceScaleFactor(deviceScaleFactor);
updateInfo.updateRectBounds = bounds;
graphicsContext->translate(-bounds.x(), -bounds.y());
for (auto& rect : rects) {
m_webPage.drawRect(*graphicsContext, rect);
updateInfo.updateRects.append(rect);
}
// Layout can trigger more calls to setNeedsDisplay and we don't want to process them
// until the UI process has painted the update, so we stop the timer here.
m_displayTimer.stop();
}
void CCLayerTreeHostImpl::adjustScrollsForPageScaleChange(float pageScaleChange)
{
if (pageScaleChange == 1)
return;
// We also need to convert impl-side scroll deltas to pageScale space.
if (m_scrollLayerImpl) {
IntSize scrollDelta = m_scrollLayerImpl->scrollDelta();
scrollDelta.scale(pageScaleChange);
m_scrollLayerImpl->setScrollDelta(scrollDelta);
}
}
void DrawingBuffer::reset(const IntSize& newSize)
{
if (!m_context)
return;
IntSize adjustedSize;
bool evictContext = false;
bool isNewContext = m_size.isEmpty();
if (s_allowContextEvictionOnCreate && isNewContext)
adjustedSize = adjustSizeWithContextEviction(newSize, evictContext);
else
adjustedSize = adjustSize(newSize);
if (adjustedSize.isEmpty())
return;
if (evictContext)
m_contextEvictionManager->forciblyLoseOldestContext("WARNING: WebGL contexts have exceeded the maximum allowed backbuffer area. Oldest context will be lost.");
if (adjustedSize != m_size) {
do {
// resize multisample FBO
if (!resizeMultisampleFramebuffer(adjustedSize) || !resizeFramebuffer(adjustedSize)) {
adjustedSize.scale(s_resourceAdjustedRatio);
continue;
}
break;
} while (!adjustedSize.isEmpty());
setSize(adjustedSize);
if (adjustedSize.isEmpty())
return;
}
m_context->disable(GL_SCISSOR_TEST);
m_context->clearColor(0, 0, 0, 0);
m_context->colorMask(true, true, true, true);
GLbitfield clearMask = GL_COLOR_BUFFER_BIT;
if (m_attributes.depth) {
m_context->clearDepth(1.0f);
clearMask |= GL_DEPTH_BUFFER_BIT;
m_context->depthMask(true);
}
if (m_attributes.stencil) {
m_context->clearStencil(0);
clearMask |= GL_STENCIL_BUFFER_BIT;
m_context->stencilMaskSeparate(GL_FRONT, 0xFFFFFFFF);
}
clearFramebuffers(clearMask);
}
BackingStoreBackendCairoX11::BackingStoreBackendCairoX11(unsigned long rootWindowID, Visual* visual, int depth, const IntSize& size, float deviceScaleFactor)
: BackingStoreBackendCairo(size)
{
IntSize scaledSize = size;
scaledSize.scale(deviceScaleFactor);
auto* display = downcast<PlatformDisplayX11>(PlatformDisplay::sharedDisplay()).native();
m_pixmap = XCreatePixmap(display, rootWindowID, scaledSize.width(), scaledSize.height(), depth);
m_gc.reset(XCreateGC(display, m_pixmap.get(), 0, nullptr));
m_surface = adoptRef(cairo_xlib_surface_create(display, m_pixmap.get(), visual, scaledSize.width(), scaledSize.height()));
cairoSurfaceSetDeviceScale(m_surface.get(), deviceScaleFactor, deviceScaleFactor);
}
PassRefPtr<WebImage> InjectedBundleRangeHandle::renderedImage(SnapshotOptions options)
{
Document& ownerDocument = m_range->ownerDocument();
Frame* frame = ownerDocument.frame();
if (!frame)
return nullptr;
FrameView* frameView = frame->view();
if (!frameView)
return nullptr;
Ref<Frame> protector(*frame);
VisibleSelection oldSelection = frame->selection().selection();
frame->selection().setSelection(VisibleSelection(*m_range));
float scaleFactor = (options & SnapshotOptionsExcludeDeviceScaleFactor) ? 1 : frame->page()->deviceScaleFactor();
IntRect paintRect = enclosingIntRect(m_range->absoluteBoundingRect());
IntSize backingStoreSize = paintRect.size();
backingStoreSize.scale(scaleFactor);
RefPtr<ShareableBitmap> backingStore = ShareableBitmap::createShareable(backingStoreSize, ShareableBitmap::SupportsAlpha);
if (!backingStore)
return nullptr;
auto graphicsContext = backingStore->createGraphicsContext();
graphicsContext->scale(scaleFactor);
paintRect.move(frameView->frameRect().x(), frameView->frameRect().y());
paintRect.moveBy(-frameView->scrollPosition());
graphicsContext->translate(-paintRect.x(), -paintRect.y());
PaintBehavior oldPaintBehavior = frameView->paintBehavior();
PaintBehavior paintBehavior = oldPaintBehavior | PaintBehaviorSelectionOnly | PaintBehaviorFlattenCompositingLayers;
if (options & SnapshotOptionsForceBlackText)
paintBehavior |= PaintBehaviorForceBlackText;
if (options & SnapshotOptionsForceWhiteText)
paintBehavior |= PaintBehaviorForceWhiteText;
frameView->setPaintBehavior(paintBehavior);
ownerDocument.updateLayout();
frameView->paint(*graphicsContext, paintRect);
frameView->setPaintBehavior(oldPaintBehavior);
frame->selection().setSelection(oldSelection);
return WebImage::create(backingStore);
}
void ImageBuffer::putByteArray(Multiply multiplied, Uint8ClampedArray* source, const IntSize& sourceSize, const IntRect& sourceRect, const IntPoint& destPoint, CoordinateSystem coordinateSystem)
{
if (!context().isAcceleratedContext()) {
IntRect scaledSourceRect = sourceRect;
IntSize scaledSourceSize = sourceSize;
if (coordinateSystem == LogicalCoordinateSystem) {
scaledSourceRect.scale(m_resolutionScale);
scaledSourceSize.scale(m_resolutionScale);
}
m_data.putData(source, scaledSourceSize, scaledSourceRect, destPoint, internalSize(), false, multiplied == Unmultiplied, 1);
return;
}
#if USE(IOSURFACE_CANVAS_BACKING_STORE)
// Make a copy of the source to ensure the bits don't change before being drawn
IntSize sourceCopySize(sourceRect.width(), sourceRect.height());
// FIXME (149431): Should this ImageBuffer be unconditionally unaccelerated? Making it match the context seems to break putData().
std::unique_ptr<ImageBuffer> sourceCopy = ImageBuffer::create(sourceCopySize, Unaccelerated, 1, ColorSpaceDeviceRGB);
if (!sourceCopy)
return;
sourceCopy->m_data.putData(source, sourceSize, sourceRect, IntPoint(-sourceRect.x(), -sourceRect.y()), sourceCopy->internalSize(), sourceCopy->context().isAcceleratedContext(), multiplied == Unmultiplied, 1);
// Set up context for using drawImage as a direct bit copy
CGContextRef destContext = context().platformContext();
CGContextSaveGState(destContext);
if (coordinateSystem == LogicalCoordinateSystem)
CGContextConcatCTM(destContext, AffineTransform(wkGetUserToBaseCTM(destContext)).inverse());
else
CGContextConcatCTM(destContext, AffineTransform(CGContextGetCTM(destContext)).inverse());
CGContextResetClip(destContext);
CGContextSetInterpolationQuality(destContext, kCGInterpolationNone);
CGContextSetAlpha(destContext, 1.0);
CGContextSetBlendMode(destContext, kCGBlendModeCopy);
CGContextSetShadowWithColor(destContext, CGSizeZero, 0, 0);
// Draw the image in CG coordinate space
FloatSize scaledDestSize = scaleSizeToUserSpace(coordinateSystem == LogicalCoordinateSystem ? logicalSize() : internalSize(), m_data.backingStoreSize, internalSize());
IntPoint destPointInCGCoords(destPoint.x() + sourceRect.x(), scaledDestSize.height() - (destPoint.y() + sourceRect.y()) - sourceRect.height());
IntRect destRectInCGCoords(destPointInCGCoords, sourceCopySize);
CGContextClipToRect(destContext, destRectInCGCoords);
RetainPtr<CGImageRef> sourceCopyImage = sourceCopy->copyNativeImage();
FloatRect backingStoreInDestRect = FloatRect(FloatPoint(destPointInCGCoords.x(), destPointInCGCoords.y() + sourceCopySize.height() - (int)CGImageGetHeight(sourceCopyImage.get())), FloatSize(CGImageGetWidth(sourceCopyImage.get()), CGImageGetHeight(sourceCopyImage.get())));
CGContextDrawImage(destContext, backingStoreInDestRect, sourceCopyImage.get());
CGContextRestoreGState(destContext);
#endif
}
void CCLayerTreeHostImpl::startPageScaleAnimation(const IntSize& targetPosition, bool anchorPoint, float pageScale, double startTimeMs, double durationMs)
{
if (!m_scrollLayerImpl)
return;
IntSize scrollTotal = toSize(m_scrollLayerImpl->scrollPosition() + m_scrollLayerImpl->scrollDelta());
scrollTotal.scale(m_pageScaleDelta);
float scaleTotal = m_pageScale * m_pageScaleDelta;
IntSize scaledContentSize = contentSize();
scaledContentSize.scale(m_pageScaleDelta);
m_pageScaleAnimation = CCPageScaleAnimation::create(scrollTotal, scaleTotal, m_viewportSize, scaledContentSize, startTimeMs);
if (anchorPoint) {
IntSize windowAnchor(targetPosition);
windowAnchor.scale(scaleTotal / pageScale);
windowAnchor -= scrollTotal;
m_pageScaleAnimation->zoomWithAnchor(windowAnchor, pageScale, durationMs);
} else
m_pageScaleAnimation->zoomTo(targetPosition, pageScale, durationMs);
m_client->setNeedsRedrawOnImplThread();
m_client->setNeedsCommitOnImplThread();
}
void BackingStore::incorporateUpdate(const UpdateInfo& updateInfo)
{
ASSERT(m_size == updateInfo.viewSize);
RefPtr<ShareableBitmap> bitmap = ShareableBitmap::create(updateInfo.bitmapHandle);
if (!bitmap)
return;
#if !ASSERT_DISABLED
IntSize updateSize = updateInfo.updateRectBounds.size();
updateSize.scale(m_deviceScaleFactor);
ASSERT(bitmap->size() == updateSize);
#endif
incorporateUpdate(bitmap.get(), updateInfo);
}
void RenderVideo::updateIntrinsicSize()
{
IntSize size = calculateIntrinsicSize();
size.scale(style()->effectiveZoom());
// Never set the element size to zero when in a media document.
if (size.isEmpty() && node()->ownerDocument() && node()->ownerDocument()->isMediaDocument())
return;
if (size == intrinsicSize())
return;
setIntrinsicSize(size);
setPreferredLogicalWidthsDirty(true);
setNeedsLayout(true);
}
bool PluginProxy::updateBackingStore()
{
if (m_pluginSize.isEmpty() || !needsBackingStore())
return false;
IntSize backingStoreSize = m_pluginSize;
backingStoreSize.scale(contentsScaleFactor());
if (m_backingStore) {
if (m_backingStore->size() == backingStoreSize)
return false;
m_backingStore = nullptr; // Give malloc a chance to recycle our backing store.
}
m_backingStore = ShareableBitmap::create(backingStoreSize, ShareableBitmap::SupportsAlpha);
return !!m_backingStore;
}
void PluginProxy::geometryDidChange()
{
ASSERT(m_isStarted);
float contentsScaleFactor = controller()->contentsScaleFactor();
if (m_frameRect.isEmpty() || !needsBackingStore()) {
ShareableBitmap::Handle pluginBackingStoreHandle;
m_connection->connection()->send(Messages::PluginControllerProxy::GeometryDidChange(m_frameRect, m_clipRect, contentsScaleFactor, pluginBackingStoreHandle), m_pluginInstanceID, CoreIPC::DispatchMessageEvenWhenWaitingForSyncReply);
return;
}
bool didUpdateBackingStore = false;
IntSize backingStoreSize = m_frameRect.size();
backingStoreSize.scale(contentsScaleFactor);
if (!m_backingStore) {
m_backingStore = ShareableBitmap::create(backingStoreSize, ShareableBitmap::SupportsAlpha);
didUpdateBackingStore = true;
} else if (backingStoreSize != m_backingStore->size()) {
// The backing store already exists, just resize it.
if (!m_backingStore->resize(backingStoreSize))
return;
didUpdateBackingStore = true;
}
ShareableBitmap::Handle pluginBackingStoreHandle;
if (didUpdateBackingStore) {
// Create a new plug-in backing store.
m_pluginBackingStore = ShareableBitmap::createShareable(backingStoreSize, ShareableBitmap::SupportsAlpha);
if (!m_pluginBackingStore)
return;
// Create a handle to the plug-in backing store so we can send it over.
if (!m_pluginBackingStore->createHandle(pluginBackingStoreHandle)) {
m_pluginBackingStore = nullptr;
return;
}
m_pluginBackingStoreContainsValidData = false;
}
m_connection->connection()->send(Messages::PluginControllerProxy::GeometryDidChange(m_frameRect, m_clipRect, contentsScaleFactor, pluginBackingStoreHandle), m_pluginInstanceID, CoreIPC::DispatchMessageEvenWhenWaitingForSyncReply);
}
WidgetBackingStoreGtkX11::WidgetBackingStoreGtkX11(GtkWidget* widget, const IntSize& size, float deviceScaleFactor)
: WidgetBackingStore(size, deviceScaleFactor)
{
IntSize scaledSize = size;
scaledSize.scale(deviceScaleFactor);
GdkVisual* visual = gtk_widget_get_visual(widget);
GdkScreen* screen = gdk_visual_get_screen(visual);
m_display = GDK_SCREEN_XDISPLAY(screen);
m_pixmap = XCreatePixmap(m_display, GDK_WINDOW_XID(gdk_screen_get_root_window(screen)),
scaledSize.width(), scaledSize.height(), gdk_visual_get_depth(visual));
m_gc = XCreateGC(m_display, m_pixmap, 0, 0);
m_surface = adoptRef(cairo_xlib_surface_create(m_display, m_pixmap,
GDK_VISUAL_XVISUAL(visual), scaledSize.width(), scaledSize.height()));
cairoSurfaceSetDeviceScale(m_surface.get(), deviceScaleFactor, deviceScaleFactor);
}
IntSize RenderImage::imageSizeForError(CachedImage* newImage) const
{
ASSERT_ARG(newImage, newImage);
ASSERT_ARG(newImage, newImage->image());
IntSize imageSize;
if (newImage->willPaintBrokenImage()) {
float deviceScaleFactor = Page::deviceScaleFactor(frame());
pair<Image*, float> brokenImageAndImageScaleFactor = newImage->brokenImage(deviceScaleFactor);
imageSize = brokenImageAndImageScaleFactor.first->size();
imageSize.scale(1 / brokenImageAndImageScaleFactor.second);
} else
imageSize = newImage->image()->size();
// imageSize() returns 0 for the error image. We need the true size of the
// error image, so we have to get it by grabbing image() directly.
return IntSize(paddingWidth + imageSize.width() * style()->effectiveZoom(), paddingHeight + imageSize.height() * style()->effectiveZoom());
}
void CCLayerTreeHostImpl::animatePageScale(double frameBeginTimeMs)
{
if (!m_pageScaleAnimation)
return;
IntSize scrollTotal = toSize(m_scrollLayerImpl->scrollPosition() + m_scrollLayerImpl->scrollDelta());
setPageScaleDelta(m_pageScaleAnimation->pageScaleAtTime(frameBeginTimeMs) / m_pageScale);
IntSize nextScroll = m_pageScaleAnimation->scrollOffsetAtTime(frameBeginTimeMs);
nextScroll.scale(1 / m_pageScaleDelta);
m_scrollLayerImpl->scrollBy(nextScroll - scrollTotal);
m_client->setNeedsRedrawOnImplThread();
if (m_pageScaleAnimation->isAnimationCompleteAtTime(frameBeginTimeMs)) {
m_pageScaleAnimation.clear();
m_client->setNeedsCommitOnImplThread();
}
}
void GestureHandler::handlePanFinished()
{
ASSERT(m_panAnimator);
ecore_animator_del(m_panAnimator);
m_panAnimator = 0;
if (!m_history.isEmpty()) {
// Calculate offset to move during one frame.
const HistoryItem& oldestHistoryItem = m_history[m_oldestHistoryItemIndex];
double frame = (ecore_time_get() - oldestHistoryItem.timestamp) / ecore_animator_frametime_get();
IntSize offset = oldestHistoryItem.point - m_currentPoint;
offset.scale(1 / frame);
handleFlick(offset);
}
m_oldestHistoryItemIndex = 0;
if (m_history.size())
m_history.resize(0);
}
void PluginView::setNPWindowRect(const IntRect& rect)
{
if (!m_isStarted)
return;
float scaleFactor = deviceScaleFactor();
IntPoint p = downcast<FrameView>(*parent()).contentsToWindow(rect.location());
p.scale(scaleFactor, scaleFactor);
IntSize s = rect.size();
s.scale(scaleFactor);
m_npWindow.x = p.x();
m_npWindow.y = p.y();
m_npWindow.width = s.width();
m_npWindow.height = s.height();
m_npWindow.clipRect.right = s.width();
m_npWindow.clipRect.bottom = s.height();
m_npWindow.clipRect.left = 0;
m_npWindow.clipRect.top = 0;
if (m_plugin->pluginFuncs()->setwindow) {
JSC::JSLock::DropAllLocks dropAllLocks(JSDOMWindowBase::commonVM());
setCallingPlugin(true);
m_plugin->pluginFuncs()->setwindow(m_instance, &m_npWindow);
setCallingPlugin(false);
m_haveCalledSetWindow = true;
if (!m_isWindowed)
return;
ASSERT(platformPluginWidget());
WNDPROC currentWndProc = (WNDPROC)GetWindowLongPtr(platformPluginWidget(), GWLP_WNDPROC);
if (currentWndProc != PluginViewWndProc)
m_pluginWndProc = (WNDPROC)SetWindowLongPtr(platformPluginWidget(), GWLP_WNDPROC, (LONG_PTR)PluginViewWndProc);
}
}
LayoutRect RenderSnapshottedPlugIn::tryToFitStartLabel(LabelSize size, const LayoutRect& contentBox) const
{
Image* labelImage = startLabelImage(size);
if (!labelImage)
return LayoutRect();
// Assume that the labelImage has been provided to match our device scale.
float scaleFactor = 1;
if (document()->page())
scaleFactor = document()->page()->deviceScaleFactor();
IntSize labelImageSize = labelImage->size();
labelImageSize.scale(1 / (scaleFactor ? scaleFactor : 1));
LayoutSize labelSize = labelImageSize - LayoutSize(2 * startLabelInset, 2 * startLabelInset);
LayoutRect candidateRect(contentBox.maxXMinYCorner() + LayoutSize(-startLabelPadding, startLabelPadding) + LayoutSize(-labelSize.width(), 0), labelSize);
// The minimum allowed content box size is the label image placed in the center of the box, surrounded by startLabelPadding.
if (candidateRect.x() < startLabelPadding || candidateRect.maxY() > contentBox.height() - startLabelPadding)
return LayoutRect();
return candidateRect;
}
bool PluginProxy::updateBackingStore()
{
if (m_pluginSize.isEmpty() || !needsBackingStore())
return false;
IntSize backingStoreSize = m_pluginSize;
backingStoreSize.scale(contentsScaleFactor());
if (!m_backingStore) {
m_backingStore = ShareableBitmap::create(backingStoreSize, ShareableBitmap::SupportsAlpha);
return true;
}
if (backingStoreSize != m_backingStore->size()) {
// The backing store already exists, just resize it.
return m_backingStore->resize(backingStoreSize);
}
return false;
}
bool DrawingBuffer::reset(const IntSize& newSize)
{
ASSERT(!newSize.isEmpty());
IntSize adjustedSize = adjustSize(newSize, m_size, m_maxTextureSize);
if (adjustedSize.isEmpty())
return false;
if (adjustedSize != m_size) {
do {
if (!resizeDefaultFramebuffer(adjustedSize)) {
adjustedSize.scale(s_resourceAdjustedRatio);
continue;
}
break;
} while (!adjustedSize.isEmpty());
setSize(adjustedSize);
if (adjustedSize.isEmpty())
return false;
}
m_gl->Disable(GL_SCISSOR_TEST);
m_gl->ClearColor(0, 0, 0, defaultBufferRequiresAlphaChannelToBePreserved() ? 1 : 0);
m_gl->ColorMask(true, true, true, true);
GLbitfield clearMask = GL_COLOR_BUFFER_BIT;
if (!!m_depthStencilBuffer) {
m_gl->ClearDepthf(1.0f);
clearMask |= GL_DEPTH_BUFFER_BIT;
m_gl->DepthMask(true);
}
if (!!m_depthStencilBuffer) {
m_gl->ClearStencil(0);
clearMask |= GL_STENCIL_BUFFER_BIT;
m_gl->StencilMaskSeparate(GL_FRONT, 0xFFFFFFFF);
}
clearFramebuffers(clearMask);
return true;
}
