diff options
author | 2016-07-28 08:58:19 -0700 | |
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committer | 2016-07-28 08:58:19 -0700 | |
commit | bba4cfebcabba3aca5c2452d7df1853258bd701c (patch) | |
tree | f3675119f7a7437c9fdfb5089f9f31f018095b08 /src/core/SkNormalMapSource.h | |
parent | 1c58696112a5d7bf1acbcc337099b0bf5eb80650 (diff) |
Added API for Bevel NormalSource.
This CL adds an API for Bevel normal source and a dummy implementation that returns a normal (0, 0, 1) every time.
This CL's base is the CL for accepting nullptrs: https://codereview.chromium.org/2132113002
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2080993002
Review-Url: https://codereview.chromium.org/2080993002
Diffstat (limited to 'src/core/SkNormalMapSource.h')
-rw-r--r-- | src/core/SkNormalMapSource.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/core/SkNormalMapSource.h b/src/core/SkNormalMapSource.h new file mode 100644 index 0000000000..5908369fc7 --- /dev/null +++ b/src/core/SkNormalMapSource.h @@ -0,0 +1,62 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkNormalMapSource_DEFINED +#define SkNormalMapSource_DEFINED + +#include "SkNormalSource.h" + +class SkNormalMapSourceImpl : public SkNormalSource { +public: + SkNormalMapSourceImpl(sk_sp<SkShader> mapShader, const SkMatrix& invCTM) + : fMapShader(std::move(mapShader)) + , fInvCTM(invCTM) {} + +#if SK_SUPPORT_GPU + sk_sp<GrFragmentProcessor> asFragmentProcessor(const SkShader::AsFPArgs&) const override; +#endif + + SkNormalSource::Provider* asProvider(const SkShader::ContextRec& rec, + void* storage) const override; + size_t providerSize(const SkShader::ContextRec& rec) const override; + + SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkNormalMapSourceImpl) + +protected: + void flatten(SkWriteBuffer& buf) const override; + + bool computeNormTotalInverse(const SkShader::ContextRec& rec, SkMatrix* normTotalInverse) const; + +private: + class Provider : public SkNormalSource::Provider { + public: + Provider(const SkNormalMapSourceImpl& source, SkShader::Context* mapContext, + SkPaint* overridePaint); + + virtual ~Provider() override; + + void fillScanLine(int x, int y, SkPoint3 output[], int count) const override; + + private: + const SkNormalMapSourceImpl& fSource; + SkShader::Context* fMapContext; + + SkPaint* fOverridePaint; + + typedef SkNormalSource::Provider INHERITED; + }; + + sk_sp<SkShader> fMapShader; + SkMatrix fInvCTM; // Inverse of the canvas total matrix, used for rotating normals. + + friend class SkNormalSource; + + typedef SkNormalSource INHERITED; +}; + +#endif + |