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| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "GrGLProgramBuilder.h" | 8 #include "GrGLProgramBuilder.h" |
| 9 #include "gl/GrGLProgram.h" | 9 #include "gl/GrGLProgram.h" |
| 10 #include "gl/GrGLSLPrettyPrint.h" | 10 #include "gl/GrGLSLPrettyPrint.h" |
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| 21 #define GL_CALL(X) GR_GL_CALL(this->gpu()->glInterface(), X) | 21 #define GL_CALL(X) GR_GL_CALL(this->gpu()->glInterface(), X) |
| 22 #define GL_CALL_RET(R, X) GR_GL_CALL_RET(this->gpu()->glInterface(), R, X) | 22 #define GL_CALL_RET(R, X) GR_GL_CALL_RET(this->gpu()->glInterface(), R, X) |
| 23 | 23 |
| 24 // ES2 FS only guarantees mediump and lowp support | 24 // ES2 FS only guarantees mediump and lowp support |
| 25 static const GrGLShaderVar::Precision kDefaultFragmentPrecision = GrGLShaderVar:
:kMedium_Precision; | 25 static const GrGLShaderVar::Precision kDefaultFragmentPrecision = GrGLShaderVar:
:kMedium_Precision; |
| 26 | 26 |
| 27 ////////////////////////////////////////////////////////////////////////////// | 27 ////////////////////////////////////////////////////////////////////////////// |
| 28 | 28 |
| 29 const int GrGLProgramBuilder::kVarsPerBlock = 8; | 29 const int GrGLProgramBuilder::kVarsPerBlock = 8; |
| 30 | 30 |
| 31 GrGLProgram* GrGLProgramBuilder::CreateProgram(const GrOptDrawState& optState, G
rGpuGL* gpu) { | 31 GrGLProgram* GrGLProgramBuilder::CreateProgram(const GrOptDrawState& optState, |
| 32 GrGpu::DrawType drawType, |
| 33 GrGpuGL* gpu) { |
| 32 // create a builder. This will be handed off to effects so they can use it
to add | 34 // create a builder. This will be handed off to effects so they can use it
to add |
| 33 // uniforms, varyings, textures, etc | 35 // uniforms, varyings, textures, etc |
| 34 SkAutoTDelete<GrGLProgramBuilder> builder(CreateProgramBuilder(optState, | 36 SkAutoTDelete<GrGLProgramBuilder> builder(CreateProgramBuilder(optState, |
| 37 drawType, |
| 35 optState.hasG
eometryProcessor(), | 38 optState.hasG
eometryProcessor(), |
| 36 gpu)); | 39 gpu)); |
| 37 | 40 |
| 38 GrGLProgramBuilder* pb = builder.get(); | 41 GrGLProgramBuilder* pb = builder.get(); |
| 39 const GrGLProgramDescBuilder::GLKeyHeader& header = GrGLProgramDescBuilder::
GetHeader(pb->desc()); | 42 const GrGLProgramDescBuilder::GLKeyHeader& header = GrGLProgramDescBuilder::
GetHeader(pb->desc()); |
| 40 | 43 |
| 41 // emit code to read the dst copy texture, if necessary | 44 // emit code to read the dst copy texture, if necessary |
| 42 if (GrGLFragmentShaderBuilder::kNoDstRead_DstReadKey != header.fDstReadKey | 45 if (GrGLFragmentShaderBuilder::kNoDstRead_DstReadKey != header.fDstReadKey |
| 43 && !gpu->glCaps().fbFetchSupport()) { | 46 && !gpu->glCaps().fbFetchSupport()) { |
| 44 pb->fFS.emitCodeToReadDstTexture(); | 47 pb->fFS.emitCodeToReadDstTexture(); |
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| 63 pb->fFS.enableSecondaryOutput(inputColor, inputCoverageVec4); | 66 pb->fFS.enableSecondaryOutput(inputColor, inputCoverageVec4); |
| 64 } | 67 } |
| 65 | 68 |
| 66 pb->fFS.combineColorAndCoverage(inputColor, inputCoverageVec4); | 69 pb->fFS.combineColorAndCoverage(inputColor, inputCoverageVec4); |
| 67 | 70 |
| 68 return pb->finalize(); | 71 return pb->finalize(); |
| 69 } | 72 } |
| 70 | 73 |
| 71 GrGLProgramBuilder* | 74 GrGLProgramBuilder* |
| 72 GrGLProgramBuilder::CreateProgramBuilder(const GrOptDrawState& optState, | 75 GrGLProgramBuilder::CreateProgramBuilder(const GrOptDrawState& optState, |
| 76 GrGpu::DrawType drawType, |
| 73 bool hasGeometryProcessor, | 77 bool hasGeometryProcessor, |
| 74 GrGpuGL* gpu) { | 78 GrGpuGL* gpu) { |
| 75 const GrProgramDesc& desc = optState.programDesc(); | 79 const GrProgramDesc& desc = optState.programDesc(); |
| 76 if (GrGLProgramDescBuilder::GetHeader(desc).fUseNvpr) { | 80 if (GrGLProgramDescBuilder::GetHeader(desc).fUseNvpr) { |
| 77 SkASSERT(gpu->glCaps().pathRenderingSupport()); | 81 SkASSERT(gpu->glCaps().pathRenderingSupport()); |
| 78 SkASSERT(GrProgramDesc::kAttribute_ColorInput != desc.header().fColorInp
ut); | 82 SkASSERT(GrProgramDesc::kAttribute_ColorInput != desc.header().fColorInp
ut); |
| 79 SkASSERT(GrProgramDesc::kAttribute_ColorInput != desc.header().fCoverage
Input); | 83 SkASSERT(GrProgramDesc::kAttribute_ColorInput != desc.header().fCoverage
Input); |
| 80 SkASSERT(!hasGeometryProcessor); | 84 SkASSERT(!hasGeometryProcessor); |
| 81 if (gpu->glPathRendering()->texturingMode() == | 85 if (gpu->glPathRendering()->texturingMode() == |
| 82 GrGLPathRendering::FixedFunction_TexturingMode) { | 86 GrGLPathRendering::FixedFunction_TexturingMode) { |
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| 223 } else if (GrProgramDesc::kAllOnes_ColorInput == header.fCoverageInput) { | 227 } else if (GrProgramDesc::kAllOnes_ColorInput == header.fCoverageInput) { |
| 224 *inputCoverage = GrGLSLExpr1(1); | 228 *inputCoverage = GrGLSLExpr1(1); |
| 225 } | 229 } |
| 226 } | 230 } |
| 227 | 231 |
| 228 void GrGLProgramBuilder::emitAndInstallProcs(GrGLSLExpr4* inputColor, GrGLSLExpr
4* inputCoverage) { | 232 void GrGLProgramBuilder::emitAndInstallProcs(GrGLSLExpr4* inputColor, GrGLSLExpr
4* inputCoverage) { |
| 229 if (fOptState.hasGeometryProcessor()) { | 233 if (fOptState.hasGeometryProcessor()) { |
| 230 fVS.setupUniformViewMatrix(); | 234 fVS.setupUniformViewMatrix(); |
| 231 | 235 |
| 232 const GrProgramDesc::KeyHeader& header = this->header(); | 236 const GrProgramDesc::KeyHeader& header = this->header(); |
| 233 fVS.codeAppend("gl_PointSize = 1.0;"); | 237 if (header.fEmitsPointSize) { |
| 238 fVS.codeAppend("gl_PointSize = 1.0;"); |
| 239 } |
| 234 | 240 |
| 235 // Setup position | 241 // Setup position |
| 236 // TODO it'd be possible to remove these from the vertexshader builder a
nd have them | 242 // TODO it'd be possible to remove these from the vertexshader builder a
nd have them |
| 237 // be outputs from the emit call. We don't do this because emitargs is
constant. It would | 243 // be outputs from the emit call. We don't do this because emitargs is
constant. It would |
| 238 // be easy to change this though | 244 // be easy to change this though |
| 239 fVS.codeAppendf("vec3 %s;", fVS.glPosition()); | 245 fVS.codeAppendf("vec3 %s;", fVS.glPosition()); |
| 240 fVS.codeAppendf("vec2 %s;", fVS.positionCoords()); | 246 fVS.codeAppendf("vec2 %s;", fVS.positionCoords()); |
| 241 fVS.codeAppendf("vec2 %s;", fVS.localCoords()); | 247 fVS.codeAppendf("vec2 %s;", fVS.localCoords()); |
| 242 | 248 |
| 243 const GrGeometryProcessor& gp = *fOptState.getGeometryProcessor(); | 249 const GrGeometryProcessor& gp = *fOptState.getGeometryProcessor(); |
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| 548 } | 554 } |
| 549 | 555 |
| 550 ////////////////////////////////////////////////////////////////////////////////
/////////////////// | 556 ////////////////////////////////////////////////////////////////////////////////
/////////////////// |
| 551 | 557 |
| 552 GrGLInstalledFragProcs::~GrGLInstalledFragProcs() { | 558 GrGLInstalledFragProcs::~GrGLInstalledFragProcs() { |
| 553 int numProcs = fProcs.count(); | 559 int numProcs = fProcs.count(); |
| 554 for (int e = 0; e < numProcs; ++e) { | 560 for (int e = 0; e < numProcs; ++e) { |
| 555 SkDELETE(fProcs[e]); | 561 SkDELETE(fProcs[e]); |
| 556 } | 562 } |
| 557 } | 563 } |
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