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| 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 #include "GrCustomCoordsTextureEffect.h" | |
| 9 #include "GrInvariantOutput.h" | |
| 10 #include "GrTexture.h" | |
| 11 #include "gl/GrGLProcessor.h" | |
| 12 #include "gl/GrGLSL.h" | |
| 13 #include "gl/GrGLTexture.h" | |
| 14 #include "gl/GrGLGeometryProcessor.h" | |
| 15 #include "gl/builders/GrGLProgramBuilder.h" | |
| 16 | |
| 17 class GrGLCustomCoordsTextureEffect : public GrGLGeometryProcessor { | |
| 18 public: | |
| 19 GrGLCustomCoordsTextureEffect(const GrGeometryProcessor&, | |
| 20 const GrBatchTracker&) {} | |
| 21 | |
| 22 virtual void emitCode(const EmitArgs& args) SK_OVERRIDE { | |
| 23 const GrCustomCoordsTextureEffect& cte = | |
| 24 args.fGP.cast<GrCustomCoordsTextureEffect>(); | |
| 25 | |
| 26 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); | |
| 27 | |
| 28 GrGLVertToFrag v(kVec2f_GrSLType); | |
| 29 args.fPB->addVarying("TextureCoords", &v); | |
| 30 vsBuilder->codeAppendf("%s = %s;", v.vsOut(), cte.inTextureCoords()->fNa
me); | |
| 31 | |
| 32 if (cte.inColor()) { | |
| 33 args.fPB->addPassThroughAttribute(cte.inColor(), args.fOutputColor); | |
| 34 } | |
| 35 | |
| 36 // setup output coords | |
| 37 vsBuilder->codeAppendf("%s = %s;", vsBuilder->positionCoords(), cte.inPo
sition()->fName); | |
| 38 vsBuilder->codeAppendf("%s = %s;", vsBuilder->localCoords(), cte.inPosit
ion()->fName); | |
| 39 | |
| 40 // setup position varying | |
| 41 vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition()
, | |
| 42 vsBuilder->uViewM(), cte.inPosition()->fName); | |
| 43 | |
| 44 GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); | |
| 45 fsBuilder->codeAppendf("%s = ", args.fOutputCoverage); | |
| 46 fsBuilder->appendTextureLookup(args.fSamplers[0], v.fsIn(), kVec2f_GrSLT
ype); | |
| 47 fsBuilder->codeAppend(";"); | |
| 48 } | |
| 49 | |
| 50 virtual void setData(const GrGLProgramDataManager&, | |
| 51 const GrGeometryProcessor&, | |
| 52 const GrBatchTracker&) SK_OVERRIDE {} | |
| 53 | |
| 54 static inline void GenKey(const GrGeometryProcessor& proc, | |
| 55 const GrBatchTracker&, | |
| 56 const GrGLCaps&, | |
| 57 GrProcessorKeyBuilder* b) { | |
| 58 const GrCustomCoordsTextureEffect& gp = proc.cast<GrCustomCoordsTextureE
ffect>(); | |
| 59 | |
| 60 b->add32(SkToBool(gp.inColor())); | |
| 61 } | |
| 62 | |
| 63 | |
| 64 private: | |
| 65 typedef GrGLGeometryProcessor INHERITED; | |
| 66 }; | |
| 67 | |
| 68 /////////////////////////////////////////////////////////////////////////////// | |
| 69 | |
| 70 GrCustomCoordsTextureEffect::GrCustomCoordsTextureEffect(GrTexture* texture, | |
| 71 const GrTextureParams&
params, | |
| 72 bool hasColor) | |
| 73 : fTextureAccess(texture, params), fInColor(NULL) { | |
| 74 this->initClassID<GrCustomCoordsTextureEffect>(); | |
| 75 fInPosition = &this->addVertexAttrib(GrAttribute("inPosition", kVec2f_GrVert
exAttribType)); | |
| 76 if (hasColor) { | |
| 77 fInColor = &this->addVertexAttrib(GrAttribute("inColor", kVec4ub_GrVerte
xAttribType)); | |
| 78 this->setHasVertexColor(); | |
| 79 } | |
| 80 fInTextureCoords = &this->addVertexAttrib(GrAttribute("inTextureCoords", | |
| 81 kVec2f_GrVertexAttribT
ype)); | |
| 82 this->addTextureAccess(&fTextureAccess); | |
| 83 } | |
| 84 | |
| 85 bool GrCustomCoordsTextureEffect::onIsEqual(const GrGeometryProcessor& other) co
nst { | |
| 86 const GrCustomCoordsTextureEffect& gp = other.cast<GrCustomCoordsTextureEffe
ct>(); | |
| 87 return SkToBool(this->inColor()) == SkToBool(gp.inColor()); | |
| 88 } | |
| 89 | |
| 90 void GrCustomCoordsTextureEffect::onComputeInvariantOutput(GrInvariantOutput* in
out) const { | |
| 91 if (GrPixelConfigIsAlphaOnly(this->texture(0)->config())) { | |
| 92 inout->mulByUnknownAlpha(); | |
| 93 } else if (GrPixelConfigIsOpaque(this->texture(0)->config())) { | |
| 94 inout->mulByUnknownOpaqueColor(); | |
| 95 } else { | |
| 96 inout->mulByUnknownColor(); | |
| 97 } | |
| 98 } | |
| 99 | |
| 100 void GrCustomCoordsTextureEffect::getGLProcessorKey(const GrBatchTracker& bt, | |
| 101 const GrGLCaps& caps, | |
| 102 GrProcessorKeyBuilder* b) co
nst { | |
| 103 GrGLCustomCoordsTextureEffect::GenKey(*this, bt, caps, b); | |
| 104 } | |
| 105 | |
| 106 GrGLGeometryProcessor* | |
| 107 GrCustomCoordsTextureEffect::createGLInstance(const GrBatchTracker& bt) const { | |
| 108 return SkNEW_ARGS(GrGLCustomCoordsTextureEffect, (*this, bt)); | |
| 109 } | |
| 110 /////////////////////////////////////////////////////////////////////////////// | |
| 111 | |
| 112 GR_DEFINE_GEOMETRY_PROCESSOR_TEST(GrCustomCoordsTextureEffect); | |
| 113 | |
| 114 GrGeometryProcessor* GrCustomCoordsTextureEffect::TestCreate(SkRandom* random, | |
| 115 GrContext*, | |
| 116 const GrDrawTargetC
aps&, | |
| 117 GrTexture* textures
[]) { | |
| 118 int texIdx = random->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx : | |
| 119 GrProcessorUnitTest::kAlphaTextureIdx; | |
| 120 static const SkShader::TileMode kTileModes[] = { | |
| 121 SkShader::kClamp_TileMode, | |
| 122 SkShader::kRepeat_TileMode, | |
| 123 SkShader::kMirror_TileMode, | |
| 124 }; | |
| 125 SkShader::TileMode tileModes[] = { | |
| 126 kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))], | |
| 127 kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))], | |
| 128 }; | |
| 129 GrTextureParams params(tileModes, random->nextBool() ? GrTextureParams::kBil
erp_FilterMode : | |
| 130 GrTextureParams::kNon
e_FilterMode); | |
| 131 | |
| 132 return GrCustomCoordsTextureEffect::Create(textures[texIdx], params, random-
>nextBool()); | |
| 133 } | |
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Chromium Code Reviews
Issue 786293002:
Rename CustomCoordTextureEffect to GrBitmapTextGeoProc. (Closed)
Base URL: https://skia.googlesource.com/skia.git@master