The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/gpu/effects/GrDistanceFieldTextureEffect.h
gfx/skia/trunk/src/gpu/effects/GrDistanceFieldTextureEffect.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:626a2253a28c |
|---|---|
| 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 GrDistanceFieldTextureEffect_DEFINED | |
| 9 #define GrDistanceFieldTextureEffect_DEFINED | |
| 10 | |
| 11 #include "GrEffect.h" | |
| 12 #include "GrVertexEffect.h" | |
| 13 | |
| 14 class GrGLDistanceFieldTextureEffect; | |
| 15 | |
| 16 /** | |
| 17 * The output color of this effect is a modulation of the input color and a sample from a | |
| 18 * distance field texture (using a smoothed step function near 0.5). | |
| 19 * It allows explicit specification of the filtering and wrap modes (GrTextureParams). The input | |
| 20 * coords are a custom attribute. | |
| 21 */ | |
| 22 class GrDistanceFieldTextureEffect : public GrVertexEffect { | |
| 23 public: | |
| 24 static GrEffectRef* Create(GrTexture* tex, const GrTextureParams& p, const SkISize& s) { | |
| 25 AutoEffectUnref effect(SkNEW_ARGS(GrDistanceFieldTextureEffect, (tex, p, s))); | |
| 26 return CreateEffectRef(effect); | |
| 27 } | |
| 28 | |
| 29 virtual ~GrDistanceFieldTextureEffect() {} | |
| 30 | |
| 31 static const char* Name() { return "DistanceFieldTexture"; } | |
| 32 | |
| 33 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE; | |
| 34 const SkSize& getSize() const { return fSize; } | |
| 35 | |
| 36 typedef GrGLDistanceFieldTextureEffect GLEffect; | |
| 37 | |
| 38 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; | |
| 39 | |
| 40 private: | |
| 41 GrDistanceFieldTextureEffect(GrTexture* texture, const GrTextureParams& params, | |
| 42 const SkISize& textureSize); | |
| 43 | |
| 44 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE; | |
| 45 | |
| 46 GrTextureAccess fTextureAccess; | |
| 47 SkSize fSize; | |
| 48 | |
| 49 GR_DECLARE_EFFECT_TEST; | |
| 50 | |
| 51 typedef GrVertexEffect INHERITED; | |
| 52 }; | |
| 53 | |
| 54 #endif |
