void FEBlend::apply(Filter* filter)
{
FilterEffect* in = inputEffect(0);
FilterEffect* in2 = inputEffect(1);
in->apply(filter);
in2->apply(filter);
if (!in->resultImage() || !in2->resultImage())
return;
if (m_mode == FEBLEND_MODE_UNKNOWN)
return;
if (!effectContext(filter))
return;
IntRect effectADrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<CanvasPixelArray> srcPixelArrayA(in->resultImage()->getPremultipliedImageData(effectADrawingRect)->data());
IntRect effectBDrawingRect = requestedRegionOfInputImageData(in2->absolutePaintRect());
RefPtr<CanvasPixelArray> srcPixelArrayB(in2->resultImage()->getPremultipliedImageData(effectBDrawingRect)->data());
IntRect imageRect(IntPoint(), resultImage()->size());
RefPtr<ImageData> imageData = ImageData::create(imageRect.width(), imageRect.height());
// Keep synchronized with BlendModeType
static const BlendType callEffect[] = {unknown, normal, multiply, screen, darken, lighten};
ASSERT(srcPixelArrayA->length() == srcPixelArrayB->length());
for (unsigned pixelOffset = 0; pixelOffset < srcPixelArrayA->length(); pixelOffset += 4) {
unsigned char alphaA = srcPixelArrayA->get(pixelOffset + 3);
unsigned char alphaB = srcPixelArrayB->get(pixelOffset + 3);
for (unsigned channel = 0; channel < 3; ++channel) {
unsigned char colorA = srcPixelArrayA->get(pixelOffset + channel);
unsigned char colorB = srcPixelArrayB->get(pixelOffset + channel);
unsigned char result = (*callEffect[m_mode])(colorA, colorB, alphaA, alphaB);
imageData->data()->set(pixelOffset + channel, result);
}
unsigned char alphaR = 255 - ((255 - alphaA) * (255 - alphaB)) / 255;
imageData->data()->set(pixelOffset + 3, alphaR);
}
resultImage()->putPremultipliedImageData(imageData.get(), imageRect, IntPoint());
}
void FEComposite::platformApplySoftware()
{
FilterEffect* in = inputEffect(0);
FilterEffect* in2 = inputEffect(1);
if (m_type == FECOMPOSITE_OPERATOR_ARITHMETIC) {
ByteArray* dstPixelArray = createPremultipliedImageResult();
if (!dstPixelArray)
return;
IntRect effectADrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<ByteArray> srcPixelArray = in->asPremultipliedImage(effectADrawingRect);
IntRect effectBDrawingRect = requestedRegionOfInputImageData(in2->absolutePaintRect());
in2->copyPremultipliedImage(dstPixelArray, effectBDrawingRect);
arithmetic(srcPixelArray.get(), dstPixelArray, m_k1, m_k2, m_k3, m_k4);
return;
}
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
GraphicsContext* filterContext = resultImage->context();
FloatRect srcRect = FloatRect(0, 0, -1, -1);
switch (m_type) {
case FECOMPOSITE_OPERATOR_OVER:
filterContext->drawImageBuffer(in2->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in2->absolutePaintRect()));
filterContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()));
break;
case FECOMPOSITE_OPERATOR_IN: {
GraphicsContextStateSaver stateSaver(*filterContext);
filterContext->clipToImageBuffer(in2->asImageBuffer(), drawingRegionOfInputImage(in2->absolutePaintRect()));
filterContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()));
break;
}
case FECOMPOSITE_OPERATOR_OUT:
filterContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()));
filterContext->drawImageBuffer(in2->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in2->absolutePaintRect()), srcRect, CompositeDestinationOut);
break;
case FECOMPOSITE_OPERATOR_ATOP:
filterContext->drawImageBuffer(in2->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in2->absolutePaintRect()));
filterContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()), srcRect, CompositeSourceAtop);
break;
case FECOMPOSITE_OPERATOR_XOR:
filterContext->drawImageBuffer(in2->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in2->absolutePaintRect()));
filterContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()), srcRect, CompositeXOR);
break;
default:
break;
}
}
void FEBlend::apply()
{
if (hasResult())
return;
FilterEffect* in = inputEffect(0);
FilterEffect* in2 = inputEffect(1);
in->apply();
in2->apply();
if (!in->hasResult() || !in2->hasResult())
return;
ASSERT(m_mode > FEBLEND_MODE_UNKNOWN);
ASSERT(m_mode <= FEBLEND_MODE_LIGHTEN);
ByteArray* dstPixelArray = createPremultipliedImageResult();
if (!dstPixelArray)
return;
IntRect effectADrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<ByteArray> srcPixelArrayA = in->asPremultipliedImage(effectADrawingRect);
IntRect effectBDrawingRect = requestedRegionOfInputImageData(in2->absolutePaintRect());
RefPtr<ByteArray> srcPixelArrayB = in2->asPremultipliedImage(effectBDrawingRect);
// Keep synchronized with BlendModeType
static const BlendType callEffect[] = {unknown, normal, multiply, screen, darken, lighten};
unsigned pixelArrayLength = srcPixelArrayA->length();
ASSERT(pixelArrayLength == srcPixelArrayB->length());
for (unsigned pixelOffset = 0; pixelOffset < pixelArrayLength; pixelOffset += 4) {
unsigned char alphaA = srcPixelArrayA->get(pixelOffset + 3);
unsigned char alphaB = srcPixelArrayB->get(pixelOffset + 3);
for (unsigned channel = 0; channel < 3; ++channel) {
unsigned char colorA = srcPixelArrayA->get(pixelOffset + channel);
unsigned char colorB = srcPixelArrayB->get(pixelOffset + channel);
unsigned char result = (*callEffect[m_mode])(colorA, colorB, alphaA, alphaB);
dstPixelArray->set(pixelOffset + channel, result);
}
unsigned char alphaR = 255 - ((255 - alphaA) * (255 - alphaB)) / 255;
dstPixelArray->set(pixelOffset + 3, alphaR);
}
}
FloatRect FEGaussianBlur::determineAbsolutePaintRect(const FloatRect& originalRequestedRect)
{
FloatRect requestedRect = originalRequestedRect;
if (clipsToBounds())
requestedRect.intersect(maxEffectRect());
FilterEffect* input = inputEffect(0);
FloatRect inputRect = input->determineAbsolutePaintRect(mapRect(requestedRect, false));
FloatRect outputRect = mapRect(inputRect, true);
outputRect.intersect(requestedRect);
addAbsolutePaintRect(outputRect);
// Blur needs space for both input and output pixels in the paint area.
// Input is also clipped to subregion.
if (clipsToBounds())
inputRect.intersect(maxEffectRect());
addAbsolutePaintRect(inputRect);
return outputRect;
}
void FEDropShadow::platformApplySoftware()
{
FilterEffect* in = inputEffect(0);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
Filter& filter = this->filter();
FloatSize blurRadius(2 * filter.applyHorizontalScale(m_stdX), 2 * filter.applyVerticalScale(m_stdY));
blurRadius.scale(filter.filterScale());
FloatSize offset(filter.applyHorizontalScale(m_dx), filter.applyVerticalScale(m_dy));
FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
FloatRect drawingRegionWithOffset(drawingRegion);
drawingRegionWithOffset.move(offset);
ImageBuffer* sourceImage = in->asImageBuffer();
if (!sourceImage)
return;
GraphicsContext& resultContext = resultImage->context();
resultContext.setAlpha(m_shadowOpacity);
resultContext.drawImageBuffer(*sourceImage, drawingRegionWithOffset);
resultContext.setAlpha(1);
ShadowBlur contextShadow(blurRadius, offset, m_shadowColor);
// TODO: Direct pixel access to ImageBuffer would avoid copying the ImageData.
IntRect shadowArea(IntPoint(), resultImage->internalSize());
RefPtr<Uint8ClampedArray> srcPixelArray = resultImage->getPremultipliedImageData(shadowArea, ImageBuffer::BackingStoreCoordinateSystem);
contextShadow.blurLayerImage(srcPixelArray->data(), shadowArea.size(), 4 * shadowArea.size().width());
resultImage->putByteArray(Premultiplied, srcPixelArray.get(), shadowArea.size(), shadowArea, IntPoint(), ImageBuffer::BackingStoreCoordinateSystem);
resultContext.setCompositeOperation(CompositeSourceIn);
resultContext.fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()), m_shadowColor);
resultContext.setCompositeOperation(CompositeDestinationOver);
resultImage->context().drawImageBuffer(*sourceImage, drawingRegion);
}
void FilterEffect::apply()
{
if (hasResult())
return;
unsigned size = m_inputEffects.size();
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = m_inputEffects.at(i).get();
in->apply();
if (!in->hasResult())
return;
}
determineAbsolutePaintRect();
// Add platform specific apply functions here and return earlier.
#if USE(SKIA)
if (platformApplySkia())
return;
#endif
platformApplySoftware();
}
static void paintFilteredContent(const LayoutObject& object, GraphicsContext& context, FilterData* filterData)
{
ASSERT(filterData->m_state == FilterData::ReadyToPaint);
ASSERT(filterData->filter->sourceGraphic());
filterData->m_state = FilterData::PaintingFilter;
SkiaImageFilterBuilder builder;
RefPtr<SkImageFilter> imageFilter = builder.build(filterData->filter->lastEffect(), ColorSpaceDeviceRGB);
FloatRect boundaries = filterData->filter->filterRegion();
context.save();
// Clip drawing of filtered image to the minimum required paint rect.
FilterEffect* lastEffect = filterData->filter->lastEffect();
context.clipRect(lastEffect->determineAbsolutePaintRect(lastEffect->maxEffectRect()));
#ifdef CHECK_CTM_FOR_TRANSFORMED_IMAGEFILTER
// TODO: Remove this workaround once skew/rotation support is added in Skia
// (https://code.google.com/p/skia/issues/detail?id=3288, crbug.com/446935).
// If the CTM contains rotation or shearing, apply the filter to
// the unsheared/unrotated matrix, and do the shearing/rotation
// as a final pass.
AffineTransform ctm = SVGLayoutSupport::deprecatedCalculateTransformToLayer(&object);
if (ctm.b() || ctm.c()) {
AffineTransform scaleAndTranslate;
scaleAndTranslate.translate(ctm.e(), ctm.f());
scaleAndTranslate.scale(ctm.xScale(), ctm.yScale());
ASSERT(scaleAndTranslate.isInvertible());
AffineTransform shearAndRotate = scaleAndTranslate.inverse();
shearAndRotate.multiply(ctm);
context.concatCTM(shearAndRotate.inverse());
imageFilter = builder.buildTransform(shearAndRotate, imageFilter.get());
}
#endif
context.beginLayer(1, SkXfermode::kSrcOver_Mode, &boundaries, ColorFilterNone, imageFilter.get());
context.endLayer();
context.restore();
filterData->m_state = FilterData::ReadyToPaint;
}
bool FEDisplacementMap::applySkia()
{
// For now, only use the skia implementation for accelerated rendering.
if (!filter()->isAccelerated())
return false;
FilterEffect* in = inputEffect(0);
FilterEffect* in2 = inputEffect(1);
if (!in || !in2)
return false;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return false;
RefPtr<Image> color = in->asImageBuffer()->copyImage(DontCopyBackingStore);
RefPtr<Image> displ = in2->asImageBuffer()->copyImage(DontCopyBackingStore);
RefPtr<NativeImageSkia> colorNativeImage = color->nativeImageForCurrentFrame();
RefPtr<NativeImageSkia> displNativeImage = displ->nativeImageForCurrentFrame();
if (!colorNativeImage || !displNativeImage)
return false;
SkBitmap colorBitmap = colorNativeImage->bitmap();
SkBitmap displBitmap = displNativeImage->bitmap();
SkAutoTUnref<SkImageFilter> colorSource(new SkBitmapSource(colorBitmap));
SkAutoTUnref<SkImageFilter> displSource(new SkBitmapSource(displBitmap));
SkDisplacementMapEffect::ChannelSelectorType typeX = toSkiaMode(m_xChannelSelector);
SkDisplacementMapEffect::ChannelSelectorType typeY = toSkiaMode(m_yChannelSelector);
// FIXME : Only applyHorizontalScale is used and applyVerticalScale is ignored
// This can be fixed by adding a 2nd scale parameter to SkDisplacementMapEffect
SkAutoTUnref<SkImageFilter> displEffect(new SkDisplacementMapEffect(
typeX, typeY, SkFloatToScalar(filter()->applyHorizontalScale(m_scale)), displSource, colorSource));
SkPaint paint;
paint.setImageFilter(displEffect);
resultImage->context()->drawBitmap(colorBitmap, 0, 0, &paint);
return true;
}
void FELighting::applySoftware()
{
FilterEffect* in = inputEffect(0);
Uint8ClampedArray* srcPixelArray = createPremultipliedImageResult();
if (!srcPixelArray)
return;
setIsAlphaImage(false);
IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
in->copyPremultipliedImage(srcPixelArray, effectDrawingRect);
// FIXME: support kernelUnitLengths other than (1,1). The issue here is that the W3
// standard has no test case for them, and other browsers (like Firefox) has strange
// output for various kernelUnitLengths, and I am not sure they are reliable.
// Anyway, feConvolveMatrix should also use the implementation
IntSize absolutePaintSize = absolutePaintRect().size();
drawLighting(srcPixelArray, absolutePaintSize.width(), absolutePaintSize.height());
}
// This function will be changed to abstract virtual when all filters are landed.
bool FilterEffect::platformApplyOpenCL()
{
if (!FilterContextOpenCL::context())
return false;
unsigned size = m_inputEffects.size();
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = m_inputEffects.at(i).get();
// Software code path expects that at least one of the following fileds is valid.
if (!in->m_imageBufferResult && !in->m_unmultipliedImageResult && !in->m_premultipliedImageResult)
in->asImageBuffer();
}
platformApplySoftware();
ImageBuffer* sourceImage = asImageBuffer();
if (sourceImage) {
RefPtr<Uint8ClampedArray> sourceImageData = sourceImage->getUnmultipliedImageData(IntRect(IntPoint(), sourceImage->internalSize()));
createOpenCLImageResult(sourceImageData->data());
}
return true;
}
bool FEBlend::applySoftwareNEON()
{
if (m_mode != WebBlendModeNormal
&& m_mode != WebBlendModeMultiply
&& m_mode != WebBlendModeScreen
&& m_mode != WebBlendModeDarken
&& m_mode != WebBlendModeLighten)
return false;
Uint8ClampedArray* dstPixelArray = createPremultipliedImageResult();
if (!dstPixelArray)
return true;
FilterEffect* in = inputEffect(0);
FilterEffect* in2 = inputEffect(1);
IntRect effectADrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<Uint8ClampedArray> srcPixelArrayA = in->asPremultipliedImage(effectADrawingRect);
IntRect effectBDrawingRect = requestedRegionOfInputImageData(in2->absolutePaintRect());
RefPtr<Uint8ClampedArray> srcPixelArrayB = in2->asPremultipliedImage(effectBDrawingRect);
unsigned pixelArrayLength = srcPixelArrayA->length();
ASSERT(pixelArrayLength == srcPixelArrayB->length());
if (pixelArrayLength >= 8) {
platformApplyNEON(srcPixelArrayA->data(), srcPixelArrayB->data(), dstPixelArray->data(), pixelArrayLength);
} else {
// If there is just one pixel we expand it to two.
ASSERT(pixelArrayLength > 0);
uint32_t sourceA[2] = {0, 0};
uint32_t sourceBAndDest[2] = {0, 0};
sourceA[0] = reinterpret_cast<uint32_t*>(srcPixelArrayA->data())[0];
sourceBAndDest[0] = reinterpret_cast<uint32_t*>(srcPixelArrayB->data())[0];
platformApplyNEON(reinterpret_cast<uint8_t*>(sourceA), reinterpret_cast<uint8_t*>(sourceBAndDest), reinterpret_cast<uint8_t*>(sourceBAndDest), 8);
reinterpret_cast<uint32_t*>(dstPixelArray->data())[0] = sourceBAndDest[0];
}
return true;
}
void FECustomFilter::platformApplySoftware()
{
ByteArray* dstPixelArray = createPremultipliedImageResult();
if (!dstPixelArray)
return;
FilterEffect* in = inputEffect(0);
IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<ByteArray> srcPixelArray = in->asPremultipliedImage(effectDrawingRect);
IntSize newContextSize(effectDrawingRect.size());
bool hadContext = m_context;
if (!m_context)
initializeContext(newContextSize);
if (!hadContext || m_contextSize != newContextSize)
resizeContext(newContextSize);
// Do not draw the filter if the input image cannot fit inside a single GPU texture.
if (m_inputTexture->tiles().numTilesX() != 1 || m_inputTexture->tiles().numTilesY() != 1)
return;
// The shader had compiler errors. We cannot draw anything.
if (!m_shader->isInitialized())
return;
m_context->clearColor(0, 0, 0, 0);
m_context->clear(GraphicsContext3D::COLOR_BUFFER_BIT | GraphicsContext3D::DEPTH_BUFFER_BIT);
bindProgramAndBuffers(srcPixelArray.get());
m_context->drawElements(GraphicsContext3D::TRIANGLES, m_mesh->indicesCount(), GraphicsContext3D::UNSIGNED_SHORT, 0);
m_drawingBuffer->commit();
RefPtr<ImageData> imageData = m_context->paintRenderingResultsToImageData(m_drawingBuffer.get());
ByteArray* gpuResult = imageData->data()->data();
ASSERT(gpuResult->length() == dstPixelArray->length());
memcpy(dstPixelArray->data(), gpuResult->data(), gpuResult->length());
}
void FEDropShadow::platformApplySoftware()
{
FilterEffect* in = inputEffect(0);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
Filter* filter = this->filter();
FloatSize blurRadius(filter->applyHorizontalScale(m_stdX), filter->applyVerticalScale(m_stdY));
FloatSize offset(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
FloatRect drawingRegionWithOffset(drawingRegion);
drawingRegionWithOffset.move(offset);
ImageBuffer* sourceImage = in->asImageBuffer();
ASSERT(sourceImage);
GraphicsContext* resultContext = resultImage->context();
ASSERT(resultContext);
resultContext->setAlpha(m_shadowOpacity);
resultContext->drawImageBuffer(sourceImage, ColorSpaceDeviceRGB, drawingRegionWithOffset);
resultContext->setAlpha(1);
ShadowBlur contextShadow(blurRadius, offset, m_shadowColor, ColorSpaceDeviceRGB);
// TODO: Direct pixel access to ImageBuffer would avoid copying the ImageData.
IntRect shadowArea(IntPoint(), resultImage->size());
RefPtr<ByteArray> srcPixelArray = resultImage->getPremultipliedImageData(shadowArea);
contextShadow.blurLayerImage(srcPixelArray->data(), shadowArea.size(), 4 * shadowArea.size().width());
resultImage->putPremultipliedImageData(srcPixelArray.get(), shadowArea.size(), shadowArea, IntPoint());
resultContext->setCompositeOperation(CompositeSourceIn);
resultContext->fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()), m_shadowColor, ColorSpaceDeviceRGB);
resultContext->setCompositeOperation(CompositeDestinationOver);
resultImage->context()->drawImageBuffer(sourceImage, ColorSpaceDeviceRGB, drawingRegion);
}
void FEMorphology::apply()
{
if (hasResult())
return;
FilterEffect* in = inputEffect(0);
in->apply();
if (!in->hasResult())
return;
ByteArray* dstPixelArray = createPremultipliedImageResult();
if (!dstPixelArray)
return;
setIsAlphaImage(in->isAlphaImage());
if (m_radiusX <= 0 || m_radiusY <= 0)
return;
Filter* filter = this->filter();
int radiusX = static_cast<int>(floorf(filter->applyHorizontalScale(m_radiusX)));
int radiusY = static_cast<int>(floorf(filter->applyVerticalScale(m_radiusY)));
IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<ByteArray> srcPixelArray = in->asPremultipliedImage(effectDrawingRect);
PaintingData paintingData;
paintingData.srcPixelArray = srcPixelArray.get();
paintingData.dstPixelArray = dstPixelArray;
paintingData.width = effectDrawingRect.width();
paintingData.height = effectDrawingRect.height();
paintingData.radiusX = min(effectDrawingRect.width() - 1, radiusX);
paintingData.radiusY = min(effectDrawingRect.height() - 1, radiusY);
platformApply(&paintingData);
}
void FEGaussianBlur::apply()
{
if (hasResult())
return;
FilterEffect* in = inputEffect(0);
in->apply();
if (!in->hasResult())
return;
ByteArray* srcPixelArray = createPremultipliedImageResult();
if (!srcPixelArray)
return;
setIsAlphaImage(in->isAlphaImage());
IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
in->copyPremultipliedImage(srcPixelArray, effectDrawingRect);
if (!m_stdX && !m_stdY)
return;
unsigned kernelSizeX = 0;
unsigned kernelSizeY = 0;
calculateKernelSize(filter(), kernelSizeX, kernelSizeY, m_stdX, m_stdY);
IntSize paintSize = absolutePaintRect().size();
RefPtr<ByteArray> tmpImageData = ByteArray::create(paintSize.width() * paintSize.height() * 4);
ByteArray* tmpPixelArray = tmpImageData.get();
platformApply(srcPixelArray, tmpPixelArray, kernelSizeX, kernelSizeY, paintSize);
}
void FECustomFilter::platformApplySoftware()
{
Uint8ClampedArray* dstPixelArray = createPremultipliedImageResult();
if (!dstPixelArray)
return;
FilterEffect* in = inputEffect(0);
IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<Uint8ClampedArray> srcPixelArray = in->asPremultipliedImage(effectDrawingRect);
IntSize newContextSize(effectDrawingRect.size());
bool hadContext = m_context;
if (!m_context)
initializeContext();
if (!hadContext || m_contextSize != newContextSize)
resizeContext(newContextSize);
// Do not draw the filter if the input image cannot fit inside a single GPU texture.
if (m_inputTexture->tiles().numTilesX() != 1 || m_inputTexture->tiles().numTilesY() != 1)
return;
// The shader had compiler errors. We cannot draw anything.
if (!m_shader->isInitialized())
return;
m_context->bindFramebuffer(GraphicsContext3D::FRAMEBUFFER, m_frameBuffer);
m_context->viewport(0, 0, newContextSize.width(), newContextSize.height());
m_context->clearColor(0, 0, 0, 0);
m_context->clear(GraphicsContext3D::COLOR_BUFFER_BIT | GraphicsContext3D::DEPTH_BUFFER_BIT);
bindProgramAndBuffers(srcPixelArray.get());
m_context->drawElements(GraphicsContext3D::TRIANGLES, m_mesh->indicesCount(), GraphicsContext3D::UNSIGNED_SHORT, 0);
ASSERT(static_cast<size_t>(newContextSize.width() * newContextSize.height() * 4) == dstPixelArray->length());
m_context->readPixels(0, 0, newContextSize.width(), newContextSize.height(), GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, dstPixelArray->data());
}
void FEColorMatrix::apply()
{
if (hasResult())
return;
FilterEffect* in = inputEffect(0);
in->apply();
if (!in->hasResult())
return;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
resultImage->context()->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()));
IntRect imageRect(IntPoint(), absolutePaintRect().size());
RefPtr<ImageData> imageData = resultImage->getUnmultipliedImageData(imageRect);
ByteArray* pixelArray = imageData->data()->data();
switch (m_type) {
case FECOLORMATRIX_TYPE_UNKNOWN:
break;
case FECOLORMATRIX_TYPE_MATRIX:
effectType<FECOLORMATRIX_TYPE_MATRIX>(pixelArray, m_values);
break;
case FECOLORMATRIX_TYPE_SATURATE:
effectType<FECOLORMATRIX_TYPE_SATURATE>(pixelArray, m_values);
break;
case FECOLORMATRIX_TYPE_HUEROTATE:
effectType<FECOLORMATRIX_TYPE_HUEROTATE>(pixelArray, m_values);
break;
case FECOLORMATRIX_TYPE_LUMINANCETOALPHA:
effectType<FECOLORMATRIX_TYPE_LUMINANCETOALPHA>(pixelArray, m_values);
setIsAlphaImage(true);
break;
}
resultImage->putUnmultipliedImageData(imageData.get(), imageRect, IntPoint());
}
bool FEComponentTransfer::platformApplySkia()
{
FilterEffect* in = inputEffect(0);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return false;
RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore);
NativeImageSkia* nativeImage = image->nativeImageForCurrentFrame();
if (!nativeImage)
return false;
unsigned char rValues[256], gValues[256], bValues[256], aValues[256];
getValues(rValues, gValues, bValues, aValues);
SkPaint paint;
paint.setColorFilter(SkTableColorFilter::CreateARGB(aValues, rValues, gValues, bValues))->unref();
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
resultImage->context()->platformContext()->drawBitmap(nativeImage->bitmap(), 0, 0, &paint);
return true;
}
void FEBlend::platformApplySoftware()
{
FilterEffect* in = inputEffect(0);
FilterEffect* in2 = inputEffect(1);
ASSERT(m_mode > FEBLEND_MODE_UNKNOWN);
ASSERT(m_mode <= FEBLEND_MODE_LIGHTEN);
Uint8ClampedArray* dstPixelArray = createPremultipliedImageResult();
if (!dstPixelArray)
return;
IntRect effectADrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
RefPtr<Uint8ClampedArray> srcPixelArrayA = in->asPremultipliedImage(effectADrawingRect);
IntRect effectBDrawingRect = requestedRegionOfInputImageData(in2->absolutePaintRect());
RefPtr<Uint8ClampedArray> srcPixelArrayB = in2->asPremultipliedImage(effectBDrawingRect);
unsigned pixelArrayLength = srcPixelArrayA->length();
ASSERT(pixelArrayLength == srcPixelArrayB->length());
#if HAVE(ARM_NEON_INTRINSICS)
if (pixelArrayLength >= 8)
platformApplyNEON(srcPixelArrayA->data(), srcPixelArrayB->data(), dstPixelArray->data(), pixelArrayLength);
else { // If there is just one pixel we expand it to two.
ASSERT(pixelArrayLength > 0);
uint32_t sourceA[2] = {0, 0};
uint32_t sourceBAndDest[2] = {0, 0};
sourceA[0] = reinterpret_cast<uint32_t*>(srcPixelArrayA->data())[0];
sourceBAndDest[0] = reinterpret_cast<uint32_t*>(srcPixelArrayB->data())[0];
platformApplyNEON(reinterpret_cast<uint8_t*>(sourceA), reinterpret_cast<uint8_t*>(sourceBAndDest), reinterpret_cast<uint8_t*>(sourceBAndDest), 8);
reinterpret_cast<uint32_t*>(dstPixelArray->data())[0] = sourceBAndDest[0];
}
#else
platformApplyGeneric(srcPixelArrayA->data(), srcPixelArrayB->data(), dstPixelArray->data(), pixelArrayLength);
#endif
}
void FEComponentTransfer::platformApplySoftware()
{
FilterEffect* in = inputEffect(0);
Uint8ClampedArray* pixelArray = createUnmultipliedImageResult();
if (!pixelArray)
return;
unsigned char rValues[256], gValues[256], bValues[256], aValues[256];
getValues(rValues, gValues, bValues, aValues);
unsigned char* tables[] = { rValues, gValues, bValues, aValues };
IntRect drawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
in->copyUnmultipliedImage(pixelArray, drawingRect);
unsigned pixelArrayLength = pixelArray->length();
for (unsigned pixelOffset = 0; pixelOffset < pixelArrayLength; pixelOffset += 4) {
for (unsigned channel = 0; channel < 4; ++channel) {
unsigned char c = pixelArray->item(pixelOffset + channel);
pixelArray->set(pixelOffset + channel, tables[channel][c]);
}
}
}
bool FEColorMatrix::applySkia()
{
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return false;
FilterEffect* in = inputEffect(0);
SkRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
SkAutoTUnref<SkColorFilter> filter(createColorFilter(m_type, m_values.data()));
RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore);
RefPtr<NativeImageSkia> nativeImage = image->nativeImageForCurrentFrame();
if (!nativeImage)
return false;
SkPaint paint;
paint.setColorFilter(filter);
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
resultImage->context()->drawBitmap(nativeImage->bitmap(), drawingRegion.fLeft, drawingRegion.fTop, &paint);
return true;
}
void FEBlend::applySoftware()
{
#if HAVE(ARM_NEON_INTRINSICS)
if (applySoftwareNEON())
return;
#endif
FilterEffect* in = inputEffect(0);
FilterEffect* in2 = inputEffect(1);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
GraphicsContext* filterContext = resultImage->context();
ImageBuffer* imageBuffer = in->asImageBuffer();
ImageBuffer* imageBuffer2 = in2->asImageBuffer();
ASSERT(imageBuffer);
ASSERT(imageBuffer2);
filterContext->drawImageBuffer(imageBuffer2, drawingRegionOfInputImage(in2->absolutePaintRect()));
filterContext->drawImageBuffer(imageBuffer, drawingRegionOfInputImage(in->absolutePaintRect()), 0, CompositeSourceOver, m_mode);
}
void FEMerge::apply()
{
if (hasResult())
return;
unsigned size = numberOfEffectInputs();
ASSERT(size > 0);
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = inputEffect(i);
in->apply();
if (!in->hasResult())
return;
}
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
GraphicsContext* filterContext = resultImage->context();
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = inputEffect(i);
filterContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()));
}
}
void FETile::apply()
{
// FIXME: See bug 47315. This is a hack to work around a compile failure, but is incorrect behavior otherwise.
#if ENABLE(SVG)
FilterEffect* in = inputEffect(0);
in->apply();
if (!in->resultImage())
return;
GraphicsContext* filterContext = effectContext();
if (!filterContext)
return;
setIsAlphaImage(in->isAlphaImage());
// Source input needs more attention. It has the size of the filterRegion but gives the
// size of the cutted sourceImage back. This is part of the specification and optimization.
FloatRect tileRect = in->maxEffectRect();
FloatPoint inMaxEffectLocation = tileRect.location();
FloatPoint maxEffectLocation = maxEffectRect().location();
if (in->filterEffectType() == FilterEffectTypeSourceInput) {
Filter* filter = this->filter();
tileRect = filter->filterRegion();
tileRect.scale(filter->filterResolution().width(), filter->filterResolution().height());
}
OwnPtr<ImageBuffer> tileImage;
if (!SVGImageBufferTools::createImageBuffer(tileRect, tileRect, tileImage, ColorSpaceDeviceRGB))
return;
GraphicsContext* tileImageContext = tileImage->context();
tileImageContext->translate(-inMaxEffectLocation.x(), -inMaxEffectLocation.y());
tileImageContext->drawImageBuffer(in->resultImage(), ColorSpaceDeviceRGB, in->absolutePaintRect().location());
RefPtr<Pattern> pattern = Pattern::create(tileImage->copyImage(), true, true);
AffineTransform patternTransform;
patternTransform.translate(inMaxEffectLocation.x() - maxEffectLocation.x(), inMaxEffectLocation.y() - maxEffectLocation.y());
pattern->setPatternSpaceTransform(patternTransform);
filterContext->setFillPattern(pattern);
filterContext->fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()));
#endif
}
void RenderSVGResourceFilter::postApplyResource(RenderObject* object, GraphicsContext*& context, unsigned short resourceMode)
{
ASSERT(object);
ASSERT(context);
#ifndef NDEBUG
ASSERT(resourceMode == ApplyToDefaultMode);
#else
UNUSED_PARAM(resourceMode);
#endif
if (!m_filter.contains(object))
return;
FilterData* filterData = m_filter.get(object);
if (!filterData->builded) {
if (!filterData->savedContext) {
removeClientFromCache(object);
return;
}
context = filterData->savedContext;
filterData->savedContext = 0;
#if !PLATFORM(CG)
filterData->sourceGraphicBuffer->transformColorSpace(DeviceRGB, LinearRGB);
#endif
}
FilterEffect* lastEffect = filterData->builder->lastEffect();
if (lastEffect && !filterData->boundaries.isEmpty() && !lastEffect->subRegion().isEmpty()) {
// This is the real filtering of the object. It just needs to be called on the
// initial filtering process. We just take the stored filter result on a
// second drawing.
if (!filterData->builded) {
filterData->filter->setSourceImage(filterData->sourceGraphicBuffer.release());
lastEffect->apply(filterData->filter.get());
#if !PLATFORM(CG)
ImageBuffer* resultImage = lastEffect->resultImage();
if (resultImage)
resultImage->transformColorSpace(LinearRGB, DeviceRGB);
#endif
filterData->builded = true;
}
ImageBuffer* resultImage = lastEffect->resultImage();
if (resultImage)
context->drawImageBuffer(resultImage, object->style()->colorSpace(), lastEffect->subRegion());
}
filterData->sourceGraphicBuffer.clear();
}
void FEOffset::apply()
{
FilterEffect* in = inputEffect(0);
in->apply();
if (!in->resultImage())
return;
GraphicsContext* filterContext = effectContext();
if (!filterContext)
return;
setIsAlphaImage(in->isAlphaImage());
FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
Filter* filter = this->filter();
drawingRegion.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
filterContext->drawImageBuffer(in->resultImage(), ColorSpaceDeviceRGB, drawingRegion);
}
void FETile::platformApplySoftware()
{
// FIXME: See bug 47315. This is a hack to work around a compile failure, but is incorrect behavior otherwise.
FilterEffect* in = inputEffect(0);
ImageBuffer* resultImage = createImageBufferResult();
ImageBuffer* inBuffer = in->asImageBuffer();
if (!resultImage || !inBuffer)
return;
setIsAlphaImage(in->isAlphaImage());
// Source input needs more attention. It has the size of the filterRegion but gives the
// size of the cutted sourceImage back. This is part of the specification and optimization.
FloatRect tileRect = in->maxEffectRect();
FloatPoint inMaxEffectLocation = tileRect.location();
FloatPoint maxEffectLocation = maxEffectRect().location();
if (in->filterEffectType() == FilterEffectTypeSourceInput) {
Filter& filter = this->filter();
tileRect = filter.filterRegion();
tileRect.scale(filter.filterResolution().width(), filter.filterResolution().height());
}
auto tileImage = SVGRenderingContext::createImageBuffer(tileRect, tileRect, ColorSpaceSRGB, filter().renderingMode());
if (!tileImage)
return;
GraphicsContext& tileImageContext = tileImage->context();
tileImageContext.translate(-inMaxEffectLocation.x(), -inMaxEffectLocation.y());
tileImageContext.drawImageBuffer(*inBuffer, in->absolutePaintRect().location());
auto tileImageCopy = ImageBuffer::sinkIntoImage(WTFMove(tileImage));
if (!tileImageCopy)
return;
auto pattern = Pattern::create(WTFMove(tileImageCopy), true, true);
AffineTransform patternTransform;
patternTransform.translate(inMaxEffectLocation.x() - maxEffectLocation.x(), inMaxEffectLocation.y() - maxEffectLocation.y());
pattern.get().setPatternSpaceTransform(patternTransform);
GraphicsContext& filterContext = resultImage->context();
filterContext.setFillPattern(WTFMove(pattern));
filterContext.fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()));
}
void FEOffset::apply()
{
if (hasResult())
return;
FilterEffect* in = inputEffect(0);
in->apply();
if (!in->hasResult())
return;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
setIsAlphaImage(in->isAlphaImage());
FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
Filter* filter = this->filter();
drawingRegion.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
resultImage->context()->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegion);
}
void FETile::applySoftware()
{
FilterEffect* in = inputEffect(0);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
setIsAlphaImage(in->isAlphaImage());
// Source input needs more attention. It has the size of the filterRegion but gives the
// size of the cutted sourceImage back. This is part of the specification and optimization.
FloatRect tileRect = in->maxEffectRect();
FloatPoint inMaxEffectLocation = tileRect.location();
FloatPoint maxEffectLocation = maxEffectRect().location();
if (in->filterEffectType() == FilterEffectTypeSourceInput) {
Filter* filter = this->filter();
tileRect = filter->absoluteFilterRegion();
}
OwnPtr<ImageBufferSurface> surface;
IntSize intTileSize = roundedIntSize(tileRect.size());
surface = adoptPtr(new UnacceleratedImageBufferSurface(intTileSize));
OwnPtr<ImageBuffer> tileImage = ImageBuffer::create(surface.release());
if (!tileImage)
return;
GraphicsContext* tileImageContext = tileImage->context();
tileImageContext->scale(FloatSize(intTileSize.width() / tileRect.width(), intTileSize.height() / tileRect.height()));
tileImageContext->translate(-inMaxEffectLocation.x(), -inMaxEffectLocation.y());
tileImageContext->drawImageBuffer(in->asImageBuffer(), in->absolutePaintRect().location());
RefPtr<Pattern> pattern = Pattern::create(tileImage->copyImage(CopyBackingStore), true, true);
AffineTransform patternTransform;
patternTransform.translate(inMaxEffectLocation.x() - maxEffectLocation.x(), inMaxEffectLocation.y() - maxEffectLocation.y());
pattern->setPatternSpaceTransform(patternTransform);
GraphicsContext* filterContext = resultImage->context();
filterContext->setFillPattern(pattern);
filterContext->fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()));
}
void FETile::applySoftware()
{
FilterEffect* in = inputEffect(0);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
setIsAlphaImage(in->isAlphaImage());
// Source input needs more attention. It has the size of the filterRegion but gives the
// size of the cutted sourceImage back. This is part of the specification and optimization.
FloatRect tileRect = in->maxEffectRect();
FloatPoint inMaxEffectLocation = tileRect.location();
FloatPoint maxEffectLocation = maxEffectRect().location();
if (in->filterEffectType() == FilterEffectTypeSourceInput) {
Filter* filter = this->filter();
tileRect = filter->absoluteFilterRegion();
tileRect.scale(filter->filterResolution().width(), filter->filterResolution().height());
}
OwnPtr<ImageBuffer> tileImage;
if (!SVGRenderingContext::createImageBufferForPattern(tileRect, tileRect, tileImage, ColorSpaceDeviceRGB, filter()->renderingMode()))
return;
GraphicsContext* tileImageContext = tileImage->context();
tileImageContext->translate(-inMaxEffectLocation.x(), -inMaxEffectLocation.y());
tileImageContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, in->absolutePaintRect().location());
RefPtr<Pattern> pattern = Pattern::create(tileImage->copyImage(CopyBackingStore), true, true);
AffineTransform patternTransform;
patternTransform.translate(inMaxEffectLocation.x() - maxEffectLocation.x(), inMaxEffectLocation.y() - maxEffectLocation.y());
pattern->setPatternSpaceTransform(patternTransform);
GraphicsContext* filterContext = resultImage->context();
filterContext->setFillPattern(pattern);
filterContext->fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()));
}
