1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/gpu/effects/GrSimpleTextureEffect.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,86 @@
1.4 +/*
1.5 + * Copyright 2013 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#ifndef GrSimpleTextureEffect_DEFINED
1.12 +#define GrSimpleTextureEffect_DEFINED
1.13 +
1.14 +#include "GrSingleTextureEffect.h"
1.15 +
1.16 +class GrGLSimpleTextureEffect;
1.17 +
1.18 +/**
1.19 + * The output color of this effect is a modulation of the input color and a sample from a texture.
1.20 + * It allows explicit specification of the filtering and wrap modes (GrTextureParams). It can use
1.21 + * local coords, positions, or a custom vertex attribute as input texture coords. The input coords
1.22 + * can have a matrix applied in the VS in both the local and position cases but not with a custom
1.23 + * attribute coords at this time. It will add a varying to input interpolate texture coords to the
1.24 + * FS.
1.25 + */
1.26 +class GrSimpleTextureEffect : public GrSingleTextureEffect {
1.27 +public:
1.28 + /* unfiltered, clamp mode */
1.29 + static GrEffectRef* Create(GrTexture* tex,
1.30 + const SkMatrix& matrix,
1.31 + GrCoordSet coordSet = kLocal_GrCoordSet) {
1.32 + AutoEffectUnref effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix, GrTextureParams::kNone_FilterMode, coordSet)));
1.33 + return CreateEffectRef(effect);
1.34 + }
1.35 +
1.36 + /* clamp mode */
1.37 + static GrEffectRef* Create(GrTexture* tex,
1.38 + const SkMatrix& matrix,
1.39 + GrTextureParams::FilterMode filterMode,
1.40 + GrCoordSet coordSet = kLocal_GrCoordSet) {
1.41 + AutoEffectUnref effect(
1.42 + SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix, filterMode, coordSet)));
1.43 + return CreateEffectRef(effect);
1.44 + }
1.45 +
1.46 + static GrEffectRef* Create(GrTexture* tex,
1.47 + const SkMatrix& matrix,
1.48 + const GrTextureParams& p,
1.49 + GrCoordSet coordSet = kLocal_GrCoordSet) {
1.50 + AutoEffectUnref effect(SkNEW_ARGS(GrSimpleTextureEffect, (tex, matrix, p, coordSet)));
1.51 + return CreateEffectRef(effect);
1.52 + }
1.53 +
1.54 + virtual ~GrSimpleTextureEffect() {}
1.55 +
1.56 + static const char* Name() { return "Texture"; }
1.57 +
1.58 + virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
1.59 +
1.60 + typedef GrGLSimpleTextureEffect GLEffect;
1.61 +
1.62 + virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
1.63 +
1.64 +private:
1.65 + GrSimpleTextureEffect(GrTexture* texture,
1.66 + const SkMatrix& matrix,
1.67 + GrTextureParams::FilterMode filterMode,
1.68 + GrCoordSet coordSet)
1.69 + : GrSingleTextureEffect(texture, matrix, filterMode, coordSet) {
1.70 + }
1.71 +
1.72 + GrSimpleTextureEffect(GrTexture* texture,
1.73 + const SkMatrix& matrix,
1.74 + const GrTextureParams& params,
1.75 + GrCoordSet coordSet)
1.76 + : GrSingleTextureEffect(texture, matrix, params, coordSet) {
1.77 + }
1.78 +
1.79 + virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE {
1.80 + const GrSimpleTextureEffect& ste = CastEffect<GrSimpleTextureEffect>(other);
1.81 + return this->hasSameTextureParamsMatrixAndSourceCoords(ste);
1.82 + }
1.83 +
1.84 + GR_DECLARE_EFFECT_TEST;
1.85 +
1.86 + typedef GrSingleTextureEffect INHERITED;
1.87 +};
1.88 +
1.89 +#endif
