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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrSimpleTextureEffect_DEFINED
#define GrSimpleTextureEffect_DEFINED
#include "GrSingleTextureEffect.h"
class GrGLSimpleTextureEffect;
/**
* The output color of this effect is a modulation of the input color and a sample from a texture.
* The coord to sample the texture is determine by a matrix. It allows explicit specification of
* the filtering and wrap modes (GrTextureParams).
*/
class GrSimpleTextureEffect : public GrSingleTextureEffect {
public:
/* unfiltered, clamp mode */
static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix) {
SkAutoTUnref<GrEffect> effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix)));
return CreateEffectRef(effect);
}
/* clamp mode */
static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix, bool bilerp) {
SkAutoTUnref<GrEffect> effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix, bilerp)));
return CreateEffectRef(effect);
}
static GrEffectRef* Create(GrTexture* tex, const SkMatrix& matrix, const GrTextureParams& p) {
SkAutoTUnref<GrEffect> effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix, p)));
return CreateEffectRef(effect);
}
virtual ~GrSimpleTextureEffect() {}
static const char* Name() { return "Texture"; }
virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
typedef GrGLSimpleTextureEffect GLEffect;
virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
private:
GrSimpleTextureEffect(GrTexture* texture, const SkMatrix& matrix)
: GrSingleTextureEffect(texture, matrix) {}
GrSimpleTextureEffect(GrTexture* texture, const SkMatrix& matrix, bool bilerp)
: GrSingleTextureEffect(texture, matrix, bilerp) {}
GrSimpleTextureEffect(GrTexture* texture, const SkMatrix& matrix, const GrTextureParams& params)
: GrSingleTextureEffect(texture, matrix, params) {}
virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE {
const GrSimpleTextureEffect& ste = static_cast<const GrSimpleTextureEffect&>(other);
return this->hasSameTextureParamsAndMatrix(ste);
}
GR_DECLARE_EFFECT_TEST;
typedef GrSingleTextureEffect INHERITED;
};
#endif
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