commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 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" |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame^] | 9 | #include "GrInvariantOutput.h" |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 10 | #include "gl/builders/GrGLProgramBuilder.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 11 | #include "gl/GrGLProcessor.h" |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 12 | #include "gl/GrGLSL.h" |
| 13 | #include "gl/GrGLTexture.h" |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 14 | #include "gl/GrGLGeometryProcessor.h" |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 15 | #include "GrTBackendProcessorFactory.h" |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 16 | #include "GrTexture.h" |
| 17 | |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 18 | class GrGLCustomCoordsTextureEffect : public GrGLGeometryProcessor { |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 19 | public: |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 20 | GrGLCustomCoordsTextureEffect(const GrBackendProcessorFactory& factory, const GrProcessor&) |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 21 | : INHERITED (factory) {} |
| 22 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 23 | virtual void emitCode(const EmitArgs& args) SK_OVERRIDE { |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 24 | const GrCustomCoordsTextureEffect& customCoordsTextureEffect = |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 25 | args.fGP.cast<GrCustomCoordsTextureEffect>(); |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 26 | SkASSERT(1 == customCoordsTextureEffect.getVertexAttribs().count()); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 27 | |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 28 | GrGLVertToFrag v(kVec2f_GrSLType); |
| 29 | args.fPB->addVarying("TextureCoords", &v); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 30 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 31 | GrGLVertexBuilder* vsBuilder = args.fPB->getVertexShaderBuilder(); |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 32 | const GrShaderVar& inTextureCoords = customCoordsTextureEffect.inTextureCoords(); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 33 | vsBuilder->codeAppendf("%s = %s;", v.vsOut(), inTextureCoords.c_str()); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 34 | |
joshualitt | 4973d9d | 2014-11-08 09:24:25 -0800 | [diff] [blame] | 35 | // setup position varying |
| 36 | vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(), |
| 37 | vsBuilder->uViewM(), vsBuilder->inPosition()); |
| 38 | |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 39 | GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 40 | fsBuilder->codeAppendf("%s = ", args.fOutput); |
joshualitt | c369e7c | 2014-10-22 10:56:26 -0700 | [diff] [blame] | 41 | fsBuilder->appendTextureLookupAndModulate(args.fInput, |
| 42 | args.fSamplers[0], |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 43 | v.fsIn(), |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 44 | kVec2f_GrSLType); |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 45 | fsBuilder->codeAppend(";"); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 46 | } |
| 47 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 48 | virtual void setData(const GrGLProgramDataManager&, |
| 49 | const GrProcessor&) SK_OVERRIDE {} |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 50 | |
| 51 | private: |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 52 | typedef GrGLGeometryProcessor INHERITED; |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 53 | }; |
| 54 | |
| 55 | /////////////////////////////////////////////////////////////////////////////// |
| 56 | |
| 57 | GrCustomCoordsTextureEffect::GrCustomCoordsTextureEffect(GrTexture* texture, |
| 58 | const GrTextureParams& params) |
joshualitt | 249af15 | 2014-09-15 11:41:13 -0700 | [diff] [blame] | 59 | : fTextureAccess(texture, params) |
| 60 | , fInTextureCoords(this->addVertexAttrib(GrShaderVar("inTextureCoords", |
| 61 | kVec2f_GrSLType, |
| 62 | GrShaderVar::kAttribute_TypeModifier))) { |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 63 | this->addTextureAccess(&fTextureAccess); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 64 | } |
| 65 | |
bsalomon | 0e08fc1 | 2014-10-15 08:19:04 -0700 | [diff] [blame] | 66 | bool GrCustomCoordsTextureEffect::onIsEqual(const GrGeometryProcessor& other) const { |
bsalomon | 420d7e9 | 2014-10-16 09:18:09 -0700 | [diff] [blame] | 67 | return true; |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 68 | } |
| 69 | |
egdaniel | 605dd0f | 2014-11-12 08:35:25 -0800 | [diff] [blame^] | 70 | void GrCustomCoordsTextureEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const { |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 71 | if (GrPixelConfigIsOpaque(this->texture(0)->config())) { |
| 72 | inout->mulByUnknownOpaqueColor(); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 73 | } else { |
egdaniel | ccb2e38 | 2014-10-13 12:53:46 -0700 | [diff] [blame] | 74 | inout->mulByUnknownColor(); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 75 | } |
| 76 | } |
| 77 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 78 | const GrBackendGeometryProcessorFactory& GrCustomCoordsTextureEffect::getFactory() const { |
| 79 | return GrTBackendGeometryProcessorFactory<GrCustomCoordsTextureEffect>::getInstance(); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | /////////////////////////////////////////////////////////////////////////////// |
| 83 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 84 | GR_DEFINE_GEOMETRY_PROCESSOR_TEST(GrCustomCoordsTextureEffect); |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 85 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 86 | GrGeometryProcessor* GrCustomCoordsTextureEffect::TestCreate(SkRandom* random, |
| 87 | GrContext*, |
| 88 | const GrDrawTargetCaps&, |
| 89 | GrTexture* textures[]) { |
| 90 | int texIdx = random->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx : |
| 91 | GrProcessorUnitTest::kAlphaTextureIdx; |
commit-bot@chromium.org | 76eaf74 | 2013-09-30 18:41:38 +0000 | [diff] [blame] | 92 | static const SkShader::TileMode kTileModes[] = { |
| 93 | SkShader::kClamp_TileMode, |
| 94 | SkShader::kRepeat_TileMode, |
| 95 | SkShader::kMirror_TileMode, |
| 96 | }; |
| 97 | SkShader::TileMode tileModes[] = { |
| 98 | kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))], |
| 99 | kTileModes[random->nextULessThan(SK_ARRAY_COUNT(kTileModes))], |
| 100 | }; |
| 101 | GrTextureParams params(tileModes, random->nextBool() ? GrTextureParams::kBilerp_FilterMode : |
| 102 | GrTextureParams::kNone_FilterMode); |
| 103 | |
| 104 | return GrCustomCoordsTextureEffect::Create(textures[texIdx], params); |
| 105 | } |