68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
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/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkArithmeticMode_gpu_DEFINED
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#define SkArithmeticMode_gpu_DEFINED
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#if SK_SUPPORT_GPU
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#include "GrCoordTransform.h"
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#include "GrFragmentProcessor.h"
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#include "GrTextureAccess.h"
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class GrInvariantOutput;
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class GrTexture;
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///////////////////////////////////////////////////////////////////////////////
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// Fragment Processor
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///////////////////////////////////////////////////////////////////////////////
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class GrGLArtithmeticFP;
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class GrArithmeticFP : public GrFragmentProcessor {
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public:
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static GrFragmentProcessor* Create(float k1, float k2, float k3, float k4, bool enforcePMColor,
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GrTexture* background) {
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return SkNEW_ARGS(GrArithmeticFP, (k1, k2, k3, k4, enforcePMColor, background));
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}
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~GrArithmeticFP() SK_OVERRIDE {};
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const char* name() const SK_OVERRIDE { return "Arithmetic"; }
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void getGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const SK_OVERRIDE;
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GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE;
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GrTexture* backgroundTexture() const { return fBackgroundAccess.getTexture(); }
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float k1() const { return fK1; }
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float k2() const { return fK2; }
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float k3() const { return fK3; }
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float k4() const { return fK4; }
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bool enforcePMColor() const { return fEnforcePMColor; }
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private:
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bool onIsEqual(const GrFragmentProcessor&) const SK_OVERRIDE;
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void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE;
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GrArithmeticFP(float k1, float k2, float k3, float k4, bool enforcePMColor,
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GrTexture* background);
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float fK1, fK2, fK3, fK4;
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bool fEnforcePMColor;
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GrCoordTransform fBackgroundTransform;
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GrTextureAccess fBackgroundAccess;
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GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
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typedef GrFragmentProcessor INHERITED;
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};
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#endif
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#endif
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