void CSSImageGeneratorValue::addClient(RenderObject* renderer, const IntSize& size)
{
ref();
ASSERT(renderer);
if (!size.isEmpty())
m_sizes.add(size);
RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
if (it == m_clients.end())
m_clients.add(renderer, SizeAndCount(size, 1));
else {
SizeAndCount& sizeCount = it->value;
++sizeCount.count;
}
}
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);
}
void ImageBySizeCache::removeClient(const RenderObject* renderer)
{
RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
ASSERT(it != m_clients.end());
SizeCountPair& sizeCount = it->second;
IntSize size = sizeCount.first;
if (!size.isEmpty()) {
m_sizes.remove(size);
if (!m_sizes.contains(size))
m_images.remove(size);
}
if (!--sizeCount.second)
m_clients.remove(renderer);
}
static inline TransformationMatrix contentToScreenSpaceTransform(const LayerType* layer)
{
ASSERT(layerTransformsToScreenKnown(layer));
IntSize boundsInLayerSpace = layer->bounds();
IntSize boundsInContentSpace = layer->contentBounds();
TransformationMatrix transform = layer->screenSpaceTransform();
if (boundsInContentSpace.isEmpty())
return transform;
// Scale from content space to layer space
transform.scaleNonUniform(boundsInLayerSpace.width() / static_cast<double>(boundsInContentSpace.width()),
boundsInLayerSpace.height() / static_cast<double>(boundsInContentSpace.height()));
return transform;
}
void ImageResource::setContainerSizeForLayoutObject(const ImageResourceClient* layoutObject, const IntSize& containerSize, float containerZoom)
{
if (containerSize.isEmpty())
return;
ASSERT(layoutObject);
ASSERT(containerZoom);
if (!m_image)
return;
if (!m_image->isSVGImage()) {
m_image->setContainerSize(containerSize);
return;
}
FloatSize containerSizeWithoutZoom(containerSize);
containerSizeWithoutZoom.scale(1 / containerZoom);
m_imageForContainerMap->set(layoutObject, SVGImageForContainer::create(toSVGImage(m_image.get()), containerSizeWithoutZoom, containerZoom));
}
Image* SVGImageCache::lookupOrCreateBitmapImageForClient(const CachedImageClient* client)
{
ASSERT(client);
// The cache needs to know the size of the client before querying an image for it.
SizeAndScalesMap::iterator sizeIt = m_sizeAndScalesMap.find(client);
if (sizeIt == m_sizeAndScalesMap.end())
return Image::nullImage();
IntSize size = sizeIt->second.size;
float zoom = sizeIt->second.zoom;
float scale = sizeIt->second.scale;
ASSERT(!size.isEmpty());
// Lookup image for client in cache and eventually update it.
ImageDataMap::iterator it = m_imageDataMap.find(client);
if (it != m_imageDataMap.end()) {
ImageData& data = it->second;
// Common case: image size & zoom remained the same.
if (data.sizeAndScales.size == size && data.sizeAndScales.zoom == zoom && data.sizeAndScales.scale == scale)
return data.image.get();
// If the image size for the client changed, we have to delete the buffer, remove the item from the cache and recreate it.
delete data.buffer;
m_imageDataMap.remove(it);
}
FloatSize scaledSize(size);
scaledSize.scale(scale);
// Create and cache new image and image buffer at requested size.
OwnPtr<ImageBuffer> newBuffer = ImageBuffer::create(expandedIntSize(scaledSize), 1);
if (!newBuffer)
return Image::nullImage();
m_svgImage->drawSVGToImageBuffer(newBuffer.get(), size, zoom, scale, SVGImage::DontClearImageBuffer);
RefPtr<Image> newImage = newBuffer->copyImage(CopyBackingStore);
Image* newImagePtr = newImage.get();
ASSERT(newImagePtr);
m_imageDataMap.add(client, ImageData(newBuffer.leakPtr(), newImage.release(), sizeIt->second));
return newImagePtr;
}
void LayerGLES2::setNeedsDisplay(PassRefPtr<ImageData> contents, const FloatRect& dirtyRect, const IntSize& requiredTextureSize)
{
if (!isCompositingThread()) {
dispatchCompositingMessage(Olympia::Platform::createMessage3(&LayerGLES2::invokeSetNeedsDisplay,
this,
contents, dirtyRect, requiredTextureSize));
return;
}
// Handle the case where we need display because we no longer need to be displayed,
// due to texture size becoming 0 x 0
if (requiredTextureSize.isEmpty()) {
m_dirtyRect = IntRect();
m_contents = 0;
m_contentsDirty = false;
m_requiredTextureSize = requiredTextureSize;
return;
}
// If the dirty area is empty, there's nothing to do
if (dirtyRect.isEmpty())
return;
// In order to display, we will need a texture.
ASSERT(contents);
// Detect if we missed an updateTextureContents().
// If the contents are still dirty, and this is is not an update of the whole texture
// we need to draw the new contents into the old
if (m_contentsDirty && (dirtyRect != IntRect(IntPoint(), requiredTextureSize))) {
ASSERT(m_contents);
// if there's no layer renderer yet, we have never been rendered, and
// we have no choice but to drop this update
if (!m_layerRenderer)
return;
updateTextureContents(m_layerRenderer->context());
}
m_dirtyRect = dirtyRect;
m_contents = contents;
m_contentsDirty = true;
m_requiredTextureSize = requiredTextureSize;
}
static inline TransformationMatrix contentToTargetSurfaceTransform(const LayerType* layer)
{
IntSize boundsInLayerSpace = layer->bounds();
IntSize boundsInContentSpace = layer->contentBounds();
TransformationMatrix transform = layer->drawTransform();
if (boundsInContentSpace.isEmpty())
return transform;
// Scale from content space to layer space
transform.scaleNonUniform(boundsInLayerSpace.width() / static_cast<double>(boundsInContentSpace.width()),
boundsInLayerSpace.height() / static_cast<double>(boundsInContentSpace.height()));
// The draw transform expects the origin to be in the middle of the layer.
transform.translate(-boundsInContentSpace.width() / 2.0, -boundsInContentSpace.height() / 2.0);
return transform;
}
unsigned DrawingBuffer::createColorTexture(const IntSize& size)
{
if (!m_context)
return 0;
unsigned offscreenColorTexture = m_context->createTexture();
if (!offscreenColorTexture)
return 0;
m_context->bindTexture(GL_TEXTURE_2D, offscreenColorTexture);
m_context->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
m_context->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
m_context->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
m_context->texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
if (!size.isEmpty())
texImage2DResourceSafe(GL_TEXTURE_2D, 0, m_internalColorFormat, size.width(), size.height(), 0, m_colorFormat, GL_UNSIGNED_BYTE);
return offscreenColorTexture;
}
void CSSImageGeneratorValue::addClient(const LayoutObject* layoutObject, const IntSize& size)
{
ASSERT(layoutObject);
if (m_clients.isEmpty()) {
ASSERT(!m_keepAlive);
m_keepAlive = this;
}
if (!size.isEmpty())
m_sizes.add(size);
LayoutObjectSizeCountMap::iterator it = m_clients.find(layoutObject);
if (it == m_clients.end()) {
m_clients.add(layoutObject, SizeAndCount(size, 1));
} else {
SizeAndCount& sizeCount = it->value;
++sizeCount.count;
}
}
void ChunkedUpdateDrawingAreaProxy::setSize(const IntSize& viewSize)
{
WebPageProxy* page = this->page();
if (!page->isValid())
return;
if (viewSize.isEmpty())
return;
m_viewSize = viewSize;
m_lastSetViewSize = viewSize;
if (m_isWaitingForDidSetFrameNotification)
return;
m_isWaitingForDidSetFrameNotification = true;
page->process()->responsivenessTimer()->start();
page->process()->send(DrawingAreaMessage::SetSize, page->pageID(), CoreIPC::In(id(), viewSize));
}
IntSize SVGImage::containerSize() const
{
SVGSVGElement* rootElement = svgRootElement(m_page.get());
if (!rootElement)
return IntSize();
LayoutSVGRoot* layoutObject = toLayoutSVGRoot(rootElement->layoutObject());
if (!layoutObject)
return IntSize();
// If a container size is available it has precedence.
IntSize containerSize = layoutObject->containerSize();
if (!containerSize.isEmpty())
return containerSize;
// Assure that a container size is always given for a non-identity zoom level.
ASSERT(layoutObject->style()->effectiveZoom() == 1);
FloatSize intrinsicSize;
double intrinsicRatio = 0;
layoutObject->computeIntrinsicRatioInformation(intrinsicSize, intrinsicRatio);
if (intrinsicSize.isEmpty() && intrinsicRatio) {
if (!intrinsicSize.width() && intrinsicSize.height())
intrinsicSize.setWidth(intrinsicSize.height() * intrinsicRatio);
else if (intrinsicSize.width() && !intrinsicSize.height())
intrinsicSize.setHeight(intrinsicSize.width() / intrinsicRatio);
}
// TODO(davve): In order to maintain aspect ratio the intrinsic
// size is faked from the viewBox as a last resort. This may cause
// unwanted side effects. Preferably we should be able to signal
// the intrinsic ratio in another way.
if (intrinsicSize.isEmpty())
intrinsicSize = rootElement->currentViewBoxRect().size();
if (!intrinsicSize.isEmpty())
return expandedIntSize(intrinsicSize);
// As last resort, use CSS replaced element fallback size.
return IntSize(300, 150);
}
void LayerBackedDrawingArea::setSize(const IntSize& viewSize)
{
ASSERT(m_shouldPaint);
ASSERT_ARG(viewSize, !viewSize.isEmpty());
m_hostingLayer->setSize(viewSize);
m_backingLayer->setSize(viewSize);
scheduleCompositingLayerSync();
// Laying out the page can cause the drawing area to change so we keep an extra reference.
RefPtr<LayerBackedDrawingArea> protect(this);
m_webPage->setSize(viewSize);
m_webPage->layoutIfNeeded();
if (m_webPage->drawingArea() != this)
return;
WebProcess::shared().connection()->deprecatedSend(DrawingAreaProxyLegacyMessage::DidSetSize, m_webPage->pageID(), CoreIPC::In(viewSize));
}
void CSSImageGeneratorValue::removeClient(RenderObject* renderer)
{
ASSERT(renderer);
RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
ASSERT(it != m_clients.end());
IntSize removedImageSize;
SizeAndCount& sizeCount = it->value;
IntSize size = sizeCount.size;
if (!size.isEmpty()) {
m_sizes.remove(size);
if (!m_sizes.contains(size))
m_images.remove(size);
}
if (!--sizeCount.count)
m_clients.remove(renderer);
deref();
}
std::unique_ptr<ImageBuffer> SVGRenderingContext::createImageBuffer(const FloatRect& targetRect, const FloatRect& clampedRect, ColorSpace colorSpace, RenderingMode renderingMode)
{
IntSize clampedSize = roundedIntSize(clampedRect.size());
IntSize unclampedSize = roundedIntSize(targetRect.size());
// Don't create empty ImageBuffers.
if (clampedSize.isEmpty())
return nullptr;
auto imageBuffer = ImageBuffer::create(clampedSize, renderingMode, 1, colorSpace);
if (!imageBuffer)
return nullptr;
GraphicsContext& imageContext = imageBuffer->context();
// Compensate rounding effects, as the absolute target rect is using floating-point numbers and the image buffer size is integer.
imageContext.scale(FloatSize(unclampedSize.width() / targetRect.width(), unclampedSize.height() / targetRect.height()));
return imageBuffer;
}
void CSSImageGeneratorValue::removeClient(const LayoutObject* layoutObject) {
ASSERT(layoutObject);
LayoutObjectSizeCountMap::iterator it = m_clients.find(layoutObject);
ASSERT_WITH_SECURITY_IMPLICATION(it != m_clients.end());
IntSize removedImageSize;
SizeAndCount& sizeCount = it->value;
IntSize size = sizeCount.size;
if (!size.isEmpty()) {
m_sizes.remove(size);
if (!m_sizes.contains(size))
m_images.remove(size);
}
if (!--sizeCount.count)
m_clients.remove(layoutObject);
if (m_clients.isEmpty()) {
ASSERT(m_keepAlive);
m_keepAlive.clear();
}
}
void SVGImagePainter::paintForeground(const PaintInfo& paintInfo)
{
const LayoutImageResource* imageResource = m_layoutSVGImage.imageResource();
IntSize imageViewportSize = expandedIntSize(computeImageViewportSize());
if (imageViewportSize.isEmpty())
return;
RefPtr<Image> image = imageResource->image(imageViewportSize, m_layoutSVGImage.style()->effectiveZoom());
FloatRect destRect = m_layoutSVGImage.objectBoundingBox();
FloatRect srcRect(0, 0, image->width(), image->height());
SVGImageElement* imageElement = toSVGImageElement(m_layoutSVGImage.element());
imageElement->preserveAspectRatio()->currentValue()->transformRect(destRect, srcRect);
InterpolationQuality interpolationQuality = InterpolationDefault;
interpolationQuality = ImageQualityController::imageQualityController()->chooseInterpolationQuality(m_layoutSVGImage, image.get(), image.get(), LayoutSize(destRect.size()));
InterpolationQuality previousInterpolationQuality = paintInfo.context.imageInterpolationQuality();
paintInfo.context.setImageInterpolationQuality(interpolationQuality);
paintInfo.context.drawImage(image.get(), destRect, srcRect, SkXfermode::kSrcOver_Mode);
paintInfo.context.setImageInterpolationQuality(previousInterpolationQuality);
}
PassRefPtr<Image> CSSCrossfadeValue::image(LayoutObject* renderer, const IntSize& size)
{
if (size.isEmpty())
return nullptr;
Document* document = &renderer->document();
ImageResource* cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), document);
ImageResource* cachedToImage = cachedImageForCSSValue(m_toValue.get(), document);
if (!cachedFromImage || !cachedToImage)
return Image::nullImage();
Image* fromImage = cachedFromImage->imageForLayoutObject(renderer);
Image* toImage = cachedToImage->imageForLayoutObject(renderer);
if (!fromImage || !toImage)
return Image::nullImage();
m_generatedImage = CrossfadeGeneratedImage::create(fromImage, toImage, m_percentageValue->getFloatValue(), fixedSize(renderer), size);
return m_generatedImage.release();
}
PassRefPtr<Image> CSSCrossfadeValue::image(RenderObject* renderer, const IntSize& size)
{
if (size.isEmpty())
return 0;
CachedResourceLoader* cachedResourceLoader = renderer->document()->cachedResourceLoader();
CachedImage* cachedFromImage = cachedImageForCSSValue(m_fromValue.get(), cachedResourceLoader);
CachedImage* cachedToImage = cachedImageForCSSValue(m_toValue.get(), cachedResourceLoader);
if (!cachedFromImage || !cachedToImage)
return Image::nullImage();
Image* fromImage = cachedFromImage->imageForRenderer(renderer);
Image* toImage = cachedToImage->imageForRenderer(renderer);
if (!fromImage || !toImage)
return Image::nullImage();
m_generatedImage = CrossfadeGeneratedImage::create(fromImage, toImage, m_percentageValue->getFloatValue(), fixedSize(renderer), size);
return m_generatedImage.release();
}
PassOwnPtr<RenderThemeEfl::ThemePartCacheEntry> RenderThemeEfl::ThemePartCacheEntry::create(const String& themePath, FormType type, const IntSize& size)
{
ASSERT(!themePath.isEmpty());
if (isFormElementTooLargeToDisplay(size) || size.isEmpty()) {
EINA_LOG_ERR("Cannot render an element of size %dx%d.", size.width(), size.height());
return nullptr;
}
OwnPtr<ThemePartCacheEntry> entry = adoptPtr(new ThemePartCacheEntry);
entry->m_canvas = adoptPtr(ecore_evas_buffer_new(size.width(), size.height()));
if (!entry->canvas()) {
EINA_LOG_ERR("ecore_evas_buffer_new(%d, %d) failed.", size.width(), size.height());
return nullptr;
}
// By default EFL creates buffers without alpha.
ecore_evas_alpha_set(entry->canvas(), EINA_TRUE);
entry->m_edje = adoptRef(edje_object_add(ecore_evas_get(entry->canvas())));
ASSERT(entry->edje());
if (!setSourceGroupForEdjeObject(entry->edje(), themePath, toEdjeGroup(type)))
return nullptr;
entry->m_surface = createSurfaceForBackingStore(entry->canvas());
if (!entry->surface())
return nullptr;
evas_object_resize(entry->edje(), size.width(), size.height());
evas_object_show(entry->edje());
entry->type = type;
entry->size = size;
return entry.release();
}
IntSize RenderVideo::calculateIntrinsicSize()
{
HTMLVideoElement* video = videoElement();
// Spec text from 4.8.6
//
// The intrinsic width of a video element's playback area is the intrinsic width
// of the video resource, if that is available; otherwise it is the intrinsic
// width of the poster frame, if that is available; otherwise it is 300 CSS pixels.
//
// The intrinsic height of a video element's playback area is the intrinsic height
// of the video resource, if that is available; otherwise it is the intrinsic
// height of the poster frame, if that is available; otherwise it is 150 CSS pixels.
MediaPlayer* player = mediaElement()->player();
if (player && video->readyState() >= HTMLVideoElement::HAVE_METADATA) {
IntSize size = player->naturalSize();
if (!size.isEmpty())
return size;
}
if (video->shouldDisplayPosterImage() && !m_cachedImageSize.isEmpty() && !imageResource()->errorOccurred())
return m_cachedImageSize;
// When the natural size of the video is unavailable, we use the provided
// width and height attributes of the video element as the intrinsic size until
// better values become available.
if (video->hasAttribute(widthAttr) && video->hasAttribute(heightAttr))
return IntSize(video->width(), video->height());
// <video> in standalone media documents should not use the default 300x150
// size since they also have audio-only files. By setting the intrinsic
// size to 300x1 the video will resize itself in these cases, and audio will
// have the correct height (it needs to be > 0 for controls to render properly).
if (video->ownerDocument() && video->ownerDocument()->isMediaDocument())
return IntSize(defaultSize().width(), 1);
return defaultSize();
}
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;
}
#if OS(DARWIN)
// FIXME: This can be removed once renderbufferStorageMultisample starts reporting GL_OUT_OF_MEMORY properly on OSX.
if (!checkBufferIntegrity()) {
adjustedSize.scale(s_resourceAdjustedRatio);
continue;
}
#endif
break;
} while (!adjustedSize.isEmpty());
setSize(adjustedSize);
if (adjustedSize.isEmpty())
return;
}
m_context->disable(GraphicsContext3D::SCISSOR_TEST);
m_context->clearColor(0, 0, 0, 0);
m_context->colorMask(true, true, true, true);
GC3Dbitfield clearMask = GraphicsContext3D::COLOR_BUFFER_BIT;
if (m_attributes.depth) {
m_context->clearDepth(1.0f);
clearMask |= GraphicsContext3D::DEPTH_BUFFER_BIT;
m_context->depthMask(true);
}
if (m_attributes.stencil) {
m_context->clearStencil(0);
clearMask |= GraphicsContext3D::STENCIL_BUFFER_BIT;
m_context->stencilMaskSeparate(GraphicsContext3D::FRONT, 0xFFFFFFFF);
}
clearFramebuffers(clearMask);
}
static void drawGDIGlyphs(GraphicsContext* graphicsContext, const SimpleFontData* font, const GlyphBuffer& glyphBuffer,
int from, int numGlyphs, const FloatPoint& point)
{
Color fillColor = graphicsContext->fillColor();
bool drawIntoBitmap = false;
int drawingMode = graphicsContext->textDrawingMode();
if (drawingMode == cTextFill) {
if (!fillColor.alpha())
return;
drawIntoBitmap = fillColor.alpha() != 255 || graphicsContext->inTransparencyLayer();
if (!drawIntoBitmap) {
IntSize size;
int blur;
Color color;
graphicsContext->getShadow(size, blur, color);
drawIntoBitmap = !size.isEmpty() || blur;
}
}
// We have to convert CG's two-dimensional floating point advances to just horizontal integer advances.
Vector<int, 2048> gdiAdvances;
int totalWidth = 0;
for (int i = 0; i < numGlyphs; i++) {
gdiAdvances.append(lroundf(glyphBuffer.advanceAt(from + i)));
totalWidth += gdiAdvances[i];
}
HDC hdc = 0;
OwnPtr<GraphicsContext::WindowsBitmap> bitmap;
IntRect textRect;
if (!drawIntoBitmap)
hdc = graphicsContext->getWindowsContext(textRect, true, false);
if (!hdc) {
drawIntoBitmap = true;
// We put slop into this rect, since glyphs can overflow the ascent/descent bounds and the left/right edges.
// FIXME: Can get glyphs' optical bounds (even from CG) to get this right.
int lineGap = font->lineGap();
textRect = IntRect(point.x() - (font->ascent() + font->descent()) / 2, point.y() - font->ascent() - lineGap, totalWidth + font->ascent() + font->descent(), font->lineSpacing());
bitmap.set(graphicsContext->createWindowsBitmap(textRect.size()));
memset(bitmap->buffer(), 255, bitmap->bufferLength());
hdc = bitmap->hdc();
XFORM xform;
xform.eM11 = 1.0f;
xform.eM12 = 0.0f;
xform.eM21 = 0.0f;
xform.eM22 = 1.0f;
xform.eDx = -textRect.x();
xform.eDy = -textRect.y();
SetWorldTransform(hdc, &xform);
}
SelectObject(hdc, font->m_font.hfont());
// Set the correct color.
if (drawIntoBitmap)
SetTextColor(hdc, RGB(0, 0, 0));
else
SetTextColor(hdc, RGB(fillColor.red(), fillColor.green(), fillColor.blue()));
SetBkMode(hdc, TRANSPARENT);
SetTextAlign(hdc, TA_LEFT | TA_BASELINE);
// Uniscribe gives us offsets to help refine the positioning of combining glyphs.
FloatSize translation = glyphBuffer.offsetAt(from);
if (translation.width() || translation.height()) {
XFORM xform;
xform.eM11 = 1.0;
xform.eM12 = 0;
xform.eM21 = 0;
xform.eM22 = 1.0;
xform.eDx = translation.width();
xform.eDy = translation.height();
ModifyWorldTransform(hdc, &xform, MWT_LEFTMULTIPLY);
}
if (drawingMode == cTextFill) {
XFORM xform;
xform.eM11 = 1.0;
xform.eM12 = 0;
xform.eM21 = font->platformData().syntheticOblique() ? -tanf(syntheticObliqueAngle * piFloat / 180.0f) : 0;
xform.eM22 = 1.0;
xform.eDx = point.x();
xform.eDy = point.y();
ModifyWorldTransform(hdc, &xform, MWT_LEFTMULTIPLY);
ExtTextOut(hdc, 0, 0, ETO_GLYPH_INDEX, 0, reinterpret_cast<const WCHAR*>(glyphBuffer.glyphs(from)), numGlyphs, gdiAdvances.data());
if (font->m_syntheticBoldOffset) {
xform.eM21 = 0;
xform.eDx = font->m_syntheticBoldOffset;
xform.eDy = 0;
ModifyWorldTransform(hdc, &xform, MWT_LEFTMULTIPLY);
ExtTextOut(hdc, 0, 0, ETO_GLYPH_INDEX, 0, reinterpret_cast<const WCHAR*>(glyphBuffer.glyphs(from)), numGlyphs, gdiAdvances.data());
}
} else {
RetainPtr<CGMutablePathRef> path(AdoptCF, CGPathCreateMutable());
XFORM xform;
GetWorldTransform(hdc, &xform);
TransformationMatrix hdcTransform(xform.eM11, xform.eM21, xform.eM12, xform.eM22, xform.eDx, xform.eDy);
CGAffineTransform initialGlyphTransform = hdcTransform.isInvertible() ? hdcTransform.inverse() : CGAffineTransformIdentity;
if (font->platformData().syntheticOblique())
initialGlyphTransform = CGAffineTransformConcat(initialGlyphTransform, CGAffineTransformMake(1, 0, tanf(syntheticObliqueAngle * piFloat / 180.0f), 1, 0, 0));
initialGlyphTransform.tx = 0;
initialGlyphTransform.ty = 0;
CGAffineTransform glyphTranslation = CGAffineTransformIdentity;
for (unsigned i = 0; i < numGlyphs; ++i) {
RetainPtr<CGPathRef> glyphPath(AdoptCF, createPathForGlyph(hdc, glyphBuffer.glyphAt(from + i)));
CGAffineTransform glyphTransform = CGAffineTransformConcat(initialGlyphTransform, glyphTranslation);
CGPathAddPath(path.get(), &glyphTransform, glyphPath.get());
glyphTranslation = CGAffineTransformTranslate(glyphTranslation, gdiAdvances[i], 0);
}
CGContextRef cgContext = graphicsContext->platformContext();
CGContextSaveGState(cgContext);
BOOL fontSmoothingEnabled = false;
SystemParametersInfo(SPI_GETFONTSMOOTHING, 0, &fontSmoothingEnabled, 0);
CGContextSetShouldAntialias(cgContext, fontSmoothingEnabled);
CGContextScaleCTM(cgContext, 1.0, -1.0);
CGContextTranslateCTM(cgContext, point.x() + glyphBuffer.offsetAt(from).width(), -(point.y() + glyphBuffer.offsetAt(from).height()));
if (drawingMode & cTextFill) {
CGContextAddPath(cgContext, path.get());
CGContextFillPath(cgContext);
if (font->m_syntheticBoldOffset) {
CGContextTranslateCTM(cgContext, font->m_syntheticBoldOffset, 0);
CGContextAddPath(cgContext, path.get());
CGContextFillPath(cgContext);
CGContextTranslateCTM(cgContext, -font->m_syntheticBoldOffset, 0);
}
}
if (drawingMode & cTextStroke) {
CGContextAddPath(cgContext, path.get());
CGContextStrokePath(cgContext);
if (font->m_syntheticBoldOffset) {
CGContextTranslateCTM(cgContext, font->m_syntheticBoldOffset, 0);
CGContextAddPath(cgContext, path.get());
CGContextStrokePath(cgContext);
CGContextTranslateCTM(cgContext, -font->m_syntheticBoldOffset, 0);
}
}
CGContextRestoreGState(cgContext);
}
if (drawIntoBitmap) {
UInt8* buffer = bitmap->buffer();
unsigned bufferLength = bitmap->bufferLength();
for (unsigned i = 0; i < bufferLength; i += 4) {
// Use green, which is always in the middle.
UInt8 alpha = (255 - buffer[i + 1]) * fillColor.alpha() / 255;
buffer[i] = fillColor.blue();
buffer[i + 1] = fillColor.green();
buffer[i + 2] = fillColor.red();
buffer[i + 3] = alpha;
}
graphicsContext->drawWindowsBitmap(bitmap.get(), textRect.topLeft());
} else
graphicsContext->releaseWindowsContext(hdc, textRect, true, false);
}
bool DrawingBuffer::reset(const IntSize& newSize)
{
if (!m_context)
return false;
m_context->makeContextCurrent();
int maxTextureSize = 0;
m_context->getIntegerv(GraphicsContext3D::MAX_TEXTURE_SIZE, &maxTextureSize);
if (newSize.height() > maxTextureSize || newSize.width() > maxTextureSize) {
clear();
return false;
}
int pixelDelta = newSize.width() * newSize.height();
int oldSize = 0;
if (!m_size.isEmpty()) {
oldSize = m_size.width() * m_size.height();
pixelDelta -= oldSize;
}
IntSize adjustedSize = newSize;
if (s_maximumResourceUsePixels) {
while ((s_currentResourceUsePixels + pixelDelta) > s_maximumResourceUsePixels) {
adjustedSize.scale(s_resourceAdjustedRatio);
if (adjustedSize.isEmpty()) {
clear();
return false;
}
pixelDelta = adjustedSize.width() * adjustedSize.height();
pixelDelta -= oldSize;
}
}
const GraphicsContext3D::Attributes& attributes = m_context->getContextAttributes();
if (adjustedSize != m_size) {
unsigned internalColorFormat, colorFormat, internalRenderbufferFormat;
if (attributes.alpha) {
internalColorFormat = GraphicsContext3D::RGBA;
colorFormat = GraphicsContext3D::RGBA;
internalRenderbufferFormat = Extensions3D::RGBA8_OES;
} else {
internalColorFormat = GraphicsContext3D::RGB;
colorFormat = GraphicsContext3D::RGB;
internalRenderbufferFormat = Extensions3D::RGB8_OES;
}
do {
m_size = adjustedSize;
// resize multisample FBO
if (multisample()) {
int maxSampleCount = 0;
m_context->getIntegerv(Extensions3D::MAX_SAMPLES, &maxSampleCount);
int sampleCount = std::min(4, maxSampleCount);
m_context->bindFramebuffer(GraphicsContext3D::FRAMEBUFFER, m_multisampleFBO);
m_context->bindRenderbuffer(GraphicsContext3D::RENDERBUFFER, m_multisampleColorBuffer);
m_context->getExtensions()->renderbufferStorageMultisample(GraphicsContext3D::RENDERBUFFER, sampleCount, internalRenderbufferFormat, m_size.width(), m_size.height());
m_context->framebufferRenderbuffer(GraphicsContext3D::FRAMEBUFFER, GraphicsContext3D::COLOR_ATTACHMENT0, GraphicsContext3D::RENDERBUFFER, m_multisampleColorBuffer);
resizeDepthStencil(sampleCount);
if (m_context->checkFramebufferStatus(GraphicsContext3D::FRAMEBUFFER) != GraphicsContext3D::FRAMEBUFFER_COMPLETE) {
adjustedSize.scale(s_resourceAdjustedRatio);
continue;
}
}
// resize regular FBO
m_context->bindFramebuffer(GraphicsContext3D::FRAMEBUFFER, m_fbo);
m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_colorBuffer);
m_context->texImage2D(GraphicsContext3D::TEXTURE_2D, 0, internalColorFormat, m_size.width(), m_size.height(), 0, colorFormat, GraphicsContext3D::UNSIGNED_BYTE, 0);
m_context->framebufferTexture2D(GraphicsContext3D::FRAMEBUFFER, GraphicsContext3D::COLOR_ATTACHMENT0, GraphicsContext3D::TEXTURE_2D, m_colorBuffer, 0);
// resize the front color buffer
if (m_separateFrontTexture) {
m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_frontColorBuffer);
m_context->texImage2D(GraphicsContext3D::TEXTURE_2D, 0, internalColorFormat, m_size.width(), m_size.height(), 0, colorFormat, GraphicsContext3D::UNSIGNED_BYTE, 0);
}
m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, 0);
if (!multisample())
resizeDepthStencil(0);
if (m_context->checkFramebufferStatus(GraphicsContext3D::FRAMEBUFFER) == GraphicsContext3D::FRAMEBUFFER_COMPLETE)
break;
adjustedSize.scale(s_resourceAdjustedRatio);
} while (!adjustedSize.isEmpty());
pixelDelta = m_size.width() * m_size.height();
pixelDelta -= oldSize;
s_currentResourceUsePixels += pixelDelta;
if (!newSize.isEmpty() && adjustedSize.isEmpty()) {
clear();
return false;
}
}
m_context->disable(GraphicsContext3D::SCISSOR_TEST);
m_context->clearColor(0, 0, 0, 0);
m_context->colorMask(true, true, true, true);
GC3Dbitfield clearMask = GraphicsContext3D::COLOR_BUFFER_BIT;
if (attributes.depth) {
m_context->clearDepth(1.0f);
clearMask |= GraphicsContext3D::DEPTH_BUFFER_BIT;
m_context->depthMask(true);
}
if (attributes.stencil) {
m_context->clearStencil(0);
clearMask |= GraphicsContext3D::STENCIL_BUFFER_BIT;
m_context->stencilMaskSeparate(GraphicsContext3D::FRONT, 0xFFFFFFFF);
}
clearFramebuffers(clearMask);
return true;
}
void SVGImage::drawSVGToImageBuffer(ImageBuffer* buffer, const IntSize& size, float zoom, float scale, ShouldClearBuffer shouldClear)
{
// FIXME: This doesn't work correctly with animations. If an image contains animations, that say run for 2 seconds,
// and we currently have one <img> that displays us. If we open another document referencing the same SVGImage it
// will display the document at a time where animations already ran - even though it has its own ImageBuffer.
// We currently don't implement SVGSVGElement::setCurrentTime, and can NOT go back in time, once animations started.
// There's no way to fix this besides avoiding style/attribute mutations from SVGAnimationElement.
ASSERT(buffer);
ASSERT(!size.isEmpty());
if (!m_page)
return;
Frame* frame = m_page->mainFrame();
SVGSVGElement* rootElement = static_cast<SVGDocument*>(frame->document())->rootElement();
if (!rootElement)
return;
RenderSVGRoot* renderer = toRenderSVGRoot(rootElement->renderer());
if (!renderer)
return;
// Draw image at requested size.
ImageObserver* observer = imageObserver();
ASSERT(observer);
// Temporarily reset image observer, we don't want to receive any changeInRect() calls due to this relayout.
setImageObserver(0);
// Disable repainting; we don't want deferred repaints to schedule any timers due to this relayout.
frame->view()->beginDisableRepaints();
renderer->setContainerSize(size);
frame->view()->resize(this->size());
if (zoom != 1)
frame->setPageZoomFactor(zoom);
// Eventually clear image buffer.
IntRect rect(IntPoint(), size);
FloatRect scaledRect(rect);
scaledRect.scale(scale);
if (shouldClear == ClearImageBuffer)
buffer->context()->clearRect(enclosingIntRect(scaledRect));
// Draw SVG on top of ImageBuffer.
draw(buffer->context(), enclosingIntRect(scaledRect), rect, ColorSpaceDeviceRGB, CompositeSourceOver);
// Reset container size & zoom to initial state. Otherwhise the size() of this
// image would return whatever last size was set by drawSVGToImageBuffer().
if (zoom != 1)
frame->setPageZoomFactor(1);
renderer->setContainerSize(IntSize());
frame->view()->resize(this->size());
if (frame->view()->needsLayout())
frame->view()->layout();
setImageObserver(observer);
frame->view()->endDisableRepaints();
}
void TextureMapperNode::syncCompositingStateSelf(GraphicsLayerTextureMapper* graphicsLayer, TextureMapper* textureMapper)
{
const int changeMask = graphicsLayer->changeMask();
initializeTextureMapper(textureMapper);
const TextureMapperNode::ContentData& pendingContent = graphicsLayer->pendingContent();
if (changeMask == NoChanges && pendingContent.needsDisplayRect.isEmpty() && !pendingContent.needsDisplay)
return;
setNeedsDisplay();
if (m_parent)
m_parent->m_state.dirty = true;
if (m_currentContent.contentType == HTMLContentType && (changeMask & ParentChange)) {
// The WebCore compositor manages item ownership. We have to make sure graphicsview doesn't
// try to snatch that ownership.
if (!graphicsLayer->parent())
m_parent = 0;
else
m_parent = toTextureMapperNode(graphicsLayer->parent());
if (!graphicsLayer->parent() && m_parent) {
size_t index = m_parent->m_children.find(this);
m_parent->m_children.remove(index);
}
}
if (changeMask & ChildrenChange) {
m_children.clear();
for (size_t i = 0; i < graphicsLayer->children().size(); ++i) {
if (TextureMapperNode* child = toTextureMapperNode(graphicsLayer->children()[i])) {
if (!child)
continue;
m_children.append(child);
child->m_parent = this;
}
}
m_state.dirty = true;
}
if (changeMask & (SizeChange | ContentsRectChange)) {
IntSize wantedSize = IntSize(graphicsLayer->size().width(), graphicsLayer->size().height());
if (wantedSize.isEmpty() && pendingContent.contentType == HTMLContentType)
wantedSize = IntSize(graphicsLayer->contentsRect().width(), graphicsLayer->contentsRect().height());
if (wantedSize != m_size) {
m_size = IntSize(wantedSize.width(), wantedSize.height());
if (m_platformClient)
m_platformClient->setSizeChanged(m_size);
const bool needsTiling = m_size.width() > 2000 || m_size.height() > 2000;
if (m_state.tiled != needsTiling)
m_state.tiled = needsTiling;
m_state.dirty = true;
}
}
if (changeMask & MaskLayerChange) {
if (TextureMapperNode* layer = toTextureMapperNode(graphicsLayer->maskLayer()))
layer->m_effectTarget = this;
}
if (changeMask & ReplicaLayerChange) {
if (TextureMapperNode* layer = toTextureMapperNode(graphicsLayer->replicaLayer()))
layer->m_effectTarget = this;
}
if (changeMask & (TransformChange | SizeChange | AnchorPointChange | PositionChange))
m_transforms.localDirty = true;
if (changeMask & (ChildrenTransformChange | SizeChange))
m_transforms.perspectiveDirty = true;
if (changeMask & (ChildrenTransformChange | Preserves3DChange | TransformChange | AnchorPointChange | SizeChange | ContentsRectChange | BackfaceVisibilityChange | PositionChange | MaskLayerChange | DrawsContentChange | ContentChange | ReplicaLayerChange)) {
// Due to the differences between the way WebCore handles transforms and the way Qt handles transforms,
// all these elements affect the transforms of all the descendants.
invalidateTransform();
}
if (changeMask & DisplayChange)
m_state.dirty = true;
m_state.maskLayer = toTextureMapperNode(graphicsLayer->maskLayer());
m_state.replicaLayer = toTextureMapperNode(graphicsLayer->replicaLayer());
m_state.pos = graphicsLayer->position();
m_state.anchorPoint = graphicsLayer->anchorPoint();
m_state.size = graphicsLayer->size();
m_state.transform = graphicsLayer->transform();
m_state.contentsRect = graphicsLayer->contentsRect();
m_state.opacity = graphicsLayer->opacity();
m_state.contentsRect = graphicsLayer->contentsRect();
m_state.preserves3D = graphicsLayer->preserves3D();
m_state.masksToBounds = graphicsLayer->masksToBounds();
m_state.drawsContent = graphicsLayer->drawsContent();
m_state.contentsOpaque = graphicsLayer->contentsOpaque();
m_state.backfaceVisibility = graphicsLayer->backfaceVisibility();
m_state.childrenTransform = graphicsLayer->childrenTransform();
m_currentContent.contentType = pendingContent.contentType;
m_currentContent.image = pendingContent.image;
m_currentContent.media = pendingContent.media;
m_currentContent.backgroundColor = pendingContent.backgroundColor;
m_currentContent.needsDisplay = m_currentContent.needsDisplay || pendingContent.needsDisplay;
m_currentContent.needsDisplayRect.unite(pendingContent.needsDisplayRect);
}
