diff options
Diffstat (limited to 'src/effects/SkMorphologyImageFilter.cpp')
-rw-r--r-- | src/effects/SkMorphologyImageFilter.cpp | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp index 0b3a86d69f..42986ce9de 100644 --- a/src/effects/SkMorphologyImageFilter.cpp +++ b/src/effects/SkMorphologyImageFilter.cpp @@ -13,6 +13,7 @@ #include "SkReadBuffer.h" #include "SkRect.h" #include "SkSpecialImage.h" +#include "SkSpecialSurface.h" #include "SkWriteBuffer.h" #if SK_SUPPORT_GPU @@ -545,6 +546,23 @@ static sk_sp<SkSpecialImage> apply_morphology( std::move(srcTexture), std::move(colorSpace), &input->props()); } + +// Return a copy of 'src' transformed to the output's color space +static sk_sp<SkSpecialImage> image_to_color_space(SkSpecialImage* src, + const SkImageFilter::OutputProperties& outProps) { + sk_sp<SkSpecialSurface> surf(src->makeSurface( + outProps, SkISize::Make(src->width(), src->height()))); + if (!surf) { + return sk_ref_sp(src); + } + + SkCanvas* canvas = surf->getCanvas(); + SkASSERT(canvas); + + src->draw(canvas, 0, 0, nullptr); + + return surf->makeImageSnapshot(); +} #endif sk_sp<SkSpecialImage> SkMorphologyImageFilter::onFilterImage(SkSpecialImage* source, @@ -585,11 +603,15 @@ sk_sp<SkSpecialImage> SkMorphologyImageFilter::onFilterImage(SkSpecialImage* sou if (source->isTextureBacked()) { GrContext* context = source->getContext(); - // Ensure the input is in the destination color space. Typically applyCropRect will have - // called pad_image to account for our dilation of bounds, so the result will already be - // moved to the destination color space. If a filter DAG avoids that, then we use this - // fall-back, which saves us from having to do the xform during the filter itself. - input = ImageToColorSpace(input.get(), ctx.outputProperties()); + // If the input is not yet already in the destination color space, do an explicit up-front + // conversion. This is extremely unlikely (maybe even impossible). Typically, applyCropRect + // will have called pad_image to account for our dilation of bounds, so the result will + // already be moved to the destination color space. If someone makes a filter DAG that + // avoids that, then we use this fall-back, which saves us from having to do the xform + // during the filter itself. + if (input->getColorSpace() != ctx.outputProperties().colorSpace()) { + input = image_to_color_space(input.get(), ctx.outputProperties()); + } auto type = (kDilate_Op == this->op()) ? GrMorphologyEffect::kDilate_MorphologyType : GrMorphologyEffect::kErode_MorphologyType; |