PassRefPtr<SkImageFilter> FEColorMatrix::createImageFilter(SkiaImageFilterBuilder* builder)
{
RefPtr<SkImageFilter> input(builder->build(inputEffect(0), operatingColorSpace()));
SkAutoTUnref<SkColorFilter> filter(createColorFilter(m_type, m_values.data()));
SkImageFilter::CropRect rect = getCropRect(builder->cropOffset());
return adoptRef(SkColorFilterImageFilter::Create(filter, input.get(), &rect));
}
void FEColorMatrix::applySoftware()
{
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
FilterEffect* in = inputEffect(0);
IntRect 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;
SkPaint paint;
paint.setColorFilter(filter);
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
resultImage->context()->drawBitmap(nativeImage->bitmap(), drawingRegion.x(), drawingRegion.y(), &paint);
if (affectsTransparentPixels()) {
IntRect fullRect = IntRect(IntPoint(), absolutePaintRect().size());
resultImage->context()->clipOut(drawingRegion);
resultImage->context()->fillRect(fullRect, Color(m_values[4], m_values[9], m_values[14], m_values[19]));
}
return;
}
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;
}
SkImageFilter* FEColorMatrix::createImageFilter(SkiaImageFilterBuilder* builder)
{
SkAutoTUnref<SkImageFilter> input(builder->build(inputEffect(0)));
SkAutoTUnref<SkColorFilter> filter(createColorFilter(m_type, m_values.data()));
return SkColorFilterImageFilter::Create(filter, input);
}
