void BitmapImage::drawPattern(GraphicsContext& ctxt, const FloatRect& tileRect, const AffineTransform& transform,
const FloatPoint& phase, const FloatSize& spacing, CompositeOperator op, const FloatRect& destRect, BlendMode blendMode)
{
if (tileRect.isEmpty())
return;
if (!ctxt.drawLuminanceMask()) {
Image::drawPattern(ctxt, tileRect, transform, phase, spacing, op, destRect, blendMode);
return;
}
if (!m_cachedImage) {
std::unique_ptr<ImageBuffer> buffer = ctxt.createCompatibleBuffer(expandedIntSize(tileRect.size()));
if (!buffer)
return;
ImageObserver* observer = imageObserver();
ASSERT(observer);
// Temporarily reset image observer, we don't want to receive any changeInRect() calls due to this relayout.
setImageObserver(nullptr);
draw(buffer->context(), tileRect, tileRect, op, blendMode, ImageOrientationDescription());
setImageObserver(observer);
buffer->convertToLuminanceMask();
m_cachedImage = buffer->copyImage(DontCopyBackingStore, Unscaled);
if (!m_cachedImage)
return;
}
ctxt.setDrawLuminanceMask(false);
m_cachedImage->drawPattern(ctxt, tileRect, transform, phase, spacing, op, destRect, blendMode);
}
void GradientImage::drawPattern(GraphicsContext& destContext, const FloatRect& srcRect, const AffineTransform& patternTransform,
const FloatPoint& phase, const FloatSize& spacing, ColorSpace styleColorSpace, CompositeOperator compositeOp, const FloatRect& destRect, BlendMode blendMode)
{
// Allow the generator to provide visually-equivalent tiling parameters for better performance.
FloatSize adjustedSize = size();
FloatRect adjustedSrcRect = srcRect;
m_gradient->adjustParametersForTiledDrawing(adjustedSize, adjustedSrcRect, spacing);
// Factor in the destination context's scale to generate at the best resolution
AffineTransform destContextCTM = destContext.getCTM(GraphicsContext::DefinitelyIncludeDeviceScale);
double xScale = fabs(destContextCTM.xScale());
double yScale = fabs(destContextCTM.yScale());
AffineTransform adjustedPatternCTM = patternTransform;
adjustedPatternCTM.scale(1.0 / xScale, 1.0 / yScale);
adjustedSrcRect.scale(xScale, yScale);
unsigned generatorHash = m_gradient->hash();
if (!m_cachedImageBuffer || m_cachedGeneratorHash != generatorHash || m_cachedAdjustedSize != adjustedSize || !destContext.isCompatibleWithBuffer(*m_cachedImageBuffer)) {
m_cachedImageBuffer = destContext.createCompatibleBuffer(adjustedSize, m_gradient->hasAlpha());
if (!m_cachedImageBuffer)
return;
// Fill with the generated image.
m_cachedImageBuffer->context().fillRect(FloatRect(FloatPoint(), adjustedSize), *m_gradient);
m_cachedGeneratorHash = generatorHash;
m_cachedAdjustedSize = adjustedSize;
if (destContext.drawLuminanceMask())
m_cachedImageBuffer->convertToLuminanceMask();
}
destContext.setDrawLuminanceMask(false);
// Tile the image buffer into the context.
m_cachedImageBuffer->drawPattern(destContext, adjustedSrcRect, adjustedPatternCTM, phase, spacing, styleColorSpace, compositeOp, destRect, blendMode);
}
void NamedImageGeneratedImage::drawPattern(GraphicsContext& context, const FloatRect& srcRect, const AffineTransform& patternTransform, const FloatPoint& phase, const FloatSize& spacing, CompositeOperator compositeOp, const FloatRect& dstRect, BlendMode blendMode)
{
#if USE(NEW_THEME)
std::unique_ptr<ImageBuffer> imageBuffer = context.createCompatibleBuffer(size(), true);
if (!imageBuffer)
return;
GraphicsContext& graphicsContext = imageBuffer->context();
platformTheme()->drawNamedImage(m_name, graphicsContext, FloatRect(0, 0, size().width(), size().height()));
// Tile the image buffer into the context.
imageBuffer->drawPattern(context, srcRect, patternTransform, phase, spacing, compositeOp, dstRect, blendMode);
#else
UNUSED_PARAM(context);
UNUSED_PARAM(srcRect);
UNUSED_PARAM(patternTransform);
UNUSED_PARAM(phase);
UNUSED_PARAM(spacing);
UNUSED_PARAM(dstRect);
UNUSED_PARAM(compositeOp);
UNUSED_PARAM(blendMode);
#endif
}
