1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef GrCustomCoordsTextureEffect_DEFINED
9#define GrCustomCoordsTextureEffect_DEFINED
10
11#include "GrEffect.h"
12#include "GrVertexEffect.h"
13
14class GrGLCustomCoordsTextureEffect;
15
16/**
17 * The output color of this effect is a modulation of the input color and a sample from a texture.
18 * It allows explicit specification of the filtering and wrap modes (GrTextureParams). The input
19 * coords are a custom attribute.
20 */
21class GrCustomCoordsTextureEffect : public GrVertexEffect {
22public:
23    static GrEffectRef* Create(GrTexture* tex, const GrTextureParams& p) {
24        AutoEffectUnref effect(SkNEW_ARGS(GrCustomCoordsTextureEffect, (tex, p)));
25        return CreateEffectRef(effect);
26    }
27
28    virtual ~GrCustomCoordsTextureEffect() {}
29
30    static const char* Name() { return "Texture"; }
31
32    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
33
34    typedef GrGLCustomCoordsTextureEffect GLEffect;
35
36    virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
37
38private:
39    GrCustomCoordsTextureEffect(GrTexture* texture, const GrTextureParams& params);
40
41    virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE;
42
43    GrTextureAccess fTextureAccess;
44
45    GR_DECLARE_EFFECT_TEST;
46
47    typedef GrVertexEffect INHERITED;
48};
49
50#endif
51