| /* |
| * 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 SkColorMatrixFilter_DEFINED |
| #define SkColorMatrixFilter_DEFINED |
| |
| #include "SkColorFilter.h" |
| |
| class SkColorMatrixFilterRowMajor255 : public SkColorFilter { |
| public: |
| SkColorMatrixFilterRowMajor255() {} |
| explicit SkColorMatrixFilterRowMajor255(const SkScalar array[20]); |
| |
| /** Creates a color matrix filter that returns the same value in all four channels. */ |
| static sk_sp<SkColorFilter> MakeSingleChannelOutput(const SkScalar row[5]); |
| |
| uint32_t getFlags() const override; |
| bool asColorMatrix(SkScalar matrix[20]) const override; |
| sk_sp<SkColorFilter> makeComposed(sk_sp<SkColorFilter>) const override; |
| |
| #if SK_SUPPORT_GPU |
| std::unique_ptr<GrFragmentProcessor> asFragmentProcessor( |
| GrContext*, const GrColorSpaceInfo&) const override; |
| #endif |
| |
| SK_TO_STRING_OVERRIDE() |
| |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkColorMatrixFilter) |
| |
| protected: |
| void flatten(SkWriteBuffer&) const override; |
| |
| private: |
| void onAppendStages(SkRasterPipeline*, SkColorSpace*, SkArenaAlloc*, |
| bool shaderIsOpaque) const override; |
| |
| SkScalar fMatrix[20]; |
| float fTranspose[20]; // for Sk4s |
| uint32_t fFlags; |
| |
| void initState(); |
| |
| typedef SkColorFilter INHERITED; |
| }; |
| |
| #endif |