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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkColorSpaceXformSteps.h"
#include "SkPM4fPriv.h"
#include "SkRasterPipeline.h"
#include "SkReadBuffer.h"
#include "SkString.h"
#include "SkToSRGBColorFilter.h"
#include "SkWriteBuffer.h"
#if SK_SUPPORT_GPU
#include "GrColorSpaceXform.h"
#endif
void SkToSRGBColorFilter::onAppendStages(SkRasterPipeline* p,
SkColorSpace* /*dst color space*/,
SkArenaAlloc* alloc,
bool shaderIsOpaque) const {
alloc->make<SkColorSpaceXformSteps>(fSrcColorSpace.get(), kPremul_SkAlphaType,
SkColorSpace::MakeSRGB().get())
->apply(p);
}
sk_sp<SkColorFilter> SkToSRGBColorFilter::Make(sk_sp<SkColorSpace> srcColorSpace) {
if (!srcColorSpace || srcColorSpace->isSRGB()) {
return nullptr;
} else {
return sk_sp<SkColorFilter>(new SkToSRGBColorFilter(std::move(srcColorSpace)));
}
}
SkToSRGBColorFilter::SkToSRGBColorFilter(sk_sp<SkColorSpace> srcColorSpace)
: fSrcColorSpace(std::move(srcColorSpace)) {
SkASSERT(fSrcColorSpace);
}
sk_sp<SkFlattenable> SkToSRGBColorFilter::CreateProc(SkReadBuffer& buffer) {
auto data = buffer.readByteArrayAsData();
return data ? Make(SkColorSpace::Deserialize(data->data(), data->size())) : nullptr;
}
void SkToSRGBColorFilter::flatten(SkWriteBuffer& buffer) const {
buffer.writeDataAsByteArray(fSrcColorSpace->serialize().get());
}
#if SK_SUPPORT_GPU
std::unique_ptr<GrFragmentProcessor> SkToSRGBColorFilter::asFragmentProcessor(
GrContext*, const GrColorSpaceInfo&) const {
return GrColorSpaceXformEffect::Make(fSrcColorSpace.get(), SkColorSpace::MakeSRGB().get());
}
#endif
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