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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "GrDistanceFieldTextureEffect.h" | 8 #include "GrDistanceFieldTextureEffect.h" |
9 #include "gl/builders/GrGLProgramBuilder.h" | 9 #include "gl/builders/GrGLProgramBuilder.h" |
10 #include "gl/GrGLProcessor.h" | 10 #include "gl/GrGLProcessor.h" |
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38 GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); | 38 GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
39 SkAssertResult(fsBuilder->enableFeature( | 39 SkAssertResult(fsBuilder->enableFeature( |
40 GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); | 40 GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
41 | 41 |
42 GrGLVertToFrag v(kVec2f_GrSLType); | 42 GrGLVertToFrag v(kVec2f_GrSLType); |
43 args.fPB->addVarying("TextureCoords", &v); | 43 args.fPB->addVarying("TextureCoords", &v); |
44 | 44 |
45 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); | 45 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
46 vsBuilder->codeAppendf("\t%s = %s;\n", v.vsOut(), dfTexEffect.inTextureC
oords().c_str()); | 46 vsBuilder->codeAppendf("\t%s = %s;\n", v.vsOut(), dfTexEffect.inTextureC
oords().c_str()); |
47 | 47 |
48 // setup position varying | |
49 vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition()
, | |
50 vsBuilder->uViewM(), vsBuilder->inPosition()); | |
51 | |
52 const char* textureSizeUniName = NULL; | 48 const char* textureSizeUniName = NULL; |
53 fTextureSizeUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, | 49 fTextureSizeUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, |
54 kVec2f_GrSLType, "TextureSize", | 50 kVec2f_GrSLType, "TextureSize", |
55 &textureSizeUniName); | 51 &textureSizeUniName); |
56 | 52 |
57 fsBuilder->codeAppend("\tvec4 texColor = "); | 53 fsBuilder->codeAppend("\tvec4 texColor = "); |
58 fsBuilder->appendTextureLookup(args.fSamplers[0], | 54 fsBuilder->appendTextureLookup(args.fSamplers[0], |
59 v.fsIn(), | 55 v.fsIn(), |
60 kVec2f_GrSLType); | 56 kVec2f_GrSLType); |
61 fsBuilder->codeAppend(";\n"); | 57 fsBuilder->codeAppend(";\n"); |
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253 GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); | 249 GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
254 SkAssertResult(fsBuilder->enableFeature( | 250 SkAssertResult(fsBuilder->enableFeature( |
255 GrGLFragmentShaderBuilder::kStandardDerivat
ives_GLSLFeature)); | 251 GrGLFragmentShaderBuilder::kStandardDerivat
ives_GLSLFeature)); |
256 | 252 |
257 GrGLVertToFrag v(kVec2f_GrSLType); | 253 GrGLVertToFrag v(kVec2f_GrSLType); |
258 args.fPB->addVarying("TextureCoords", &v); | 254 args.fPB->addVarying("TextureCoords", &v); |
259 | 255 |
260 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); | 256 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
261 vsBuilder->codeAppendf("%s = %s;", v.vsOut(), dfTexEffect.inTextureCoord
s().c_str()); | 257 vsBuilder->codeAppendf("%s = %s;", v.vsOut(), dfTexEffect.inTextureCoord
s().c_str()); |
262 | 258 |
263 // setup position varying | |
264 vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition()
, | |
265 vsBuilder->uViewM(), vsBuilder->inPosition()); | |
266 | |
267 const char* textureSizeUniName = NULL; | 259 const char* textureSizeUniName = NULL; |
268 fTextureSizeUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, | 260 fTextureSizeUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, |
269 kVec2f_GrSLType, "TextureSize", | 261 kVec2f_GrSLType, "TextureSize", |
270 &textureSizeUniName); | 262 &textureSizeUniName); |
271 | 263 |
272 fsBuilder->codeAppend("vec4 texColor = "); | 264 fsBuilder->codeAppend("vec4 texColor = "); |
273 fsBuilder->appendTextureLookup(args.fSamplers[0], | 265 fsBuilder->appendTextureLookup(args.fSamplers[0], |
274 v.fsIn(), | 266 v.fsIn(), |
275 kVec2f_GrSLType); | 267 kVec2f_GrSLType); |
276 fsBuilder->codeAppend(";"); | 268 fsBuilder->codeAppend(";"); |
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411 const GrDistanceFieldLCDTextureEffect& dfTexEffect = | 403 const GrDistanceFieldLCDTextureEffect& dfTexEffect = |
412 args.fGP.cast<GrDistanceFieldLCDTextureEffect>(); | 404 args.fGP.cast<GrDistanceFieldLCDTextureEffect>(); |
413 SkASSERT(1 == dfTexEffect.getVertexAttribs().count()); | 405 SkASSERT(1 == dfTexEffect.getVertexAttribs().count()); |
414 | 406 |
415 GrGLVertToFrag v(kVec2f_GrSLType); | 407 GrGLVertToFrag v(kVec2f_GrSLType); |
416 args.fPB->addVarying("TextureCoords", &v); | 408 args.fPB->addVarying("TextureCoords", &v); |
417 | 409 |
418 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); | 410 GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
419 vsBuilder->codeAppendf("\t%s = %s;\n", v.vsOut(), dfTexEffect.inTextureC
oords().c_str()); | 411 vsBuilder->codeAppendf("\t%s = %s;\n", v.vsOut(), dfTexEffect.inTextureC
oords().c_str()); |
420 | 412 |
421 // setup position varying | |
422 vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition()
, | |
423 vsBuilder->uViewM(), vsBuilder->inPosition()); | |
424 | |
425 const char* textureSizeUniName = NULL; | 413 const char* textureSizeUniName = NULL; |
426 // width, height, 1/(3*width) | 414 // width, height, 1/(3*width) |
427 fTextureSizeUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, | 415 fTextureSizeUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Vis
ibility, |
428 kVec3f_GrSLType, "TextureSize", | 416 kVec3f_GrSLType, "TextureSize", |
429 &textureSizeUniName); | 417 &textureSizeUniName); |
430 | 418 |
431 GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); | 419 GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
432 | 420 |
433 SkAssertResult(fsBuilder->enableFeature( | 421 SkAssertResult(fsBuilder->enableFeature( |
434 GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); | 422 GrGLFragmentShaderBuilder::kStandardDerivatives_GLSLFeature)); |
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644 random->nextULessThan(256), | 632 random->nextULessThan(256), |
645 random->nextULessThan(256)); | 633 random->nextULessThan(256)); |
646 uint32_t flags = kUseLCD_DistanceFieldEffectFlag; | 634 uint32_t flags = kUseLCD_DistanceFieldEffectFlag; |
647 flags |= random->nextBool() ? kUniformScale_DistanceFieldEffectMask : 0; | 635 flags |= random->nextBool() ? kUniformScale_DistanceFieldEffectMask : 0; |
648 flags |= random->nextBool() ? kBGR_DistanceFieldEffectFlag : 0; | 636 flags |= random->nextBool() ? kBGR_DistanceFieldEffectFlag : 0; |
649 return GrDistanceFieldLCDTextureEffect::Create(textures[texIdx], params, | 637 return GrDistanceFieldLCDTextureEffect::Create(textures[texIdx], params, |
650 textures[texIdx2], params2, | 638 textures[texIdx2], params2, |
651 textColor, | 639 textColor, |
652 flags); | 640 flags); |
653 } | 641 } |
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