joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 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 "GrGLFragmentShaderBuilder.h" |
| 9 | #include "GrGLShaderStringBuilder.h" |
| 10 | #include "GrGLProgramBuilder.h" |
jvanverth | 39edf76 | 2014-12-22 11:44:19 -0800 | [diff] [blame] | 11 | #include "../GrGLGpu.h" |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 12 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 13 | #define GL_CALL(X) GR_GL_CALL(fProgramBuilder->gpu()->glInterface(), X) |
| 14 | #define GL_CALL_RET(R, X) GR_GL_CALL_RET(fProgramBuilder->gpu()->glInterface(), R, X) |
| 15 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 16 | const char* GrGLFragmentShaderBuilder::kDstCopyColorName = "_dstColor"; |
| 17 | static const char* declared_color_output_name() { return "fsColorOut"; } |
| 18 | static const char* dual_source_output_name() { return "dualSourceOut"; } |
bsalomon | c0bd648 | 2014-12-09 10:04:14 -0800 | [diff] [blame] | 19 | static void append_default_precision_qualifier(GrSLPrecision p, |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 20 | GrGLStandard standard, |
| 21 | SkString* str) { |
| 22 | // Desktop GLSL has added precision qualifiers but they don't do anything. |
| 23 | if (kGLES_GrGLStandard == standard) { |
| 24 | switch (p) { |
bsalomon | c0bd648 | 2014-12-09 10:04:14 -0800 | [diff] [blame] | 25 | case kHigh_GrSLPrecision: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 26 | str->append("precision highp float;\n"); |
| 27 | break; |
bsalomon | c0bd648 | 2014-12-09 10:04:14 -0800 | [diff] [blame] | 28 | case kMedium_GrSLPrecision: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 29 | str->append("precision mediump float;\n"); |
| 30 | break; |
bsalomon | c0bd648 | 2014-12-09 10:04:14 -0800 | [diff] [blame] | 31 | case kLow_GrSLPrecision: |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 32 | str->append("precision lowp float;\n"); |
| 33 | break; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 34 | default: |
| 35 | SkFAIL("Unknown precision value."); |
| 36 | } |
| 37 | } |
| 38 | } |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 39 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 40 | GrGLFragmentShaderBuilder::DstReadKey |
rmistry | 63a9f84 | 2014-10-17 06:07:08 -0700 | [diff] [blame] | 41 | GrGLFragmentShaderBuilder::KeyForDstRead(const GrTexture* dstCopy, const GrGLCaps& caps) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 42 | uint32_t key = kYesDstRead_DstReadKeyBit; |
| 43 | if (caps.fbFetchSupport()) { |
| 44 | return key; |
| 45 | } |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 46 | SkASSERT(dstCopy); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 47 | if (!caps.textureSwizzleSupport() && GrPixelConfigIsAlphaOnly(dstCopy->config())) { |
| 48 | // The fact that the config is alpha-only must be considered when generating code. |
| 49 | key |= kUseAlphaConfig_DstReadKeyBit; |
| 50 | } |
| 51 | if (kTopLeft_GrSurfaceOrigin == dstCopy->origin()) { |
| 52 | key |= kTopLeftOrigin_DstReadKeyBit; |
| 53 | } |
| 54 | SkASSERT(static_cast<DstReadKey>(key) == key); |
| 55 | return static_cast<DstReadKey>(key); |
| 56 | } |
| 57 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 58 | GrGLFragmentShaderBuilder::FragPosKey |
rmistry | 63a9f84 | 2014-10-17 06:07:08 -0700 | [diff] [blame] | 59 | GrGLFragmentShaderBuilder::KeyForFragmentPosition(const GrRenderTarget* dst, const GrGLCaps&) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 60 | if (kTopLeft_GrSurfaceOrigin == dst->origin()) { |
| 61 | return kTopLeftFragPosRead_FragPosKey; |
| 62 | } else { |
| 63 | return kBottomLeftFragPosRead_FragPosKey; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | GrGLFragmentShaderBuilder::GrGLFragmentShaderBuilder(GrGLProgramBuilder* program, |
joshualitt | 79f8fae | 2014-10-28 17:59:26 -0700 | [diff] [blame] | 68 | uint8_t fragPosKey) |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 69 | : INHERITED(program) |
| 70 | , fHasCustomColorOutput(false) |
| 71 | , fHasSecondaryOutput(false) |
| 72 | , fSetupFragPosition(false) |
joshualitt | 79f8fae | 2014-10-28 17:59:26 -0700 | [diff] [blame] | 73 | , fTopLeftFragPosRead(kTopLeftFragPosRead_FragPosKey == fragPosKey) |
joshualitt | b4384b9 | 2014-10-21 12:53:15 -0700 | [diff] [blame] | 74 | , fCustomColorOutputIndex(-1) |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 75 | , fHasReadDstColor(false) |
| 76 | , fHasReadFragmentPosition(false) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | bool GrGLFragmentShaderBuilder::enableFeature(GLSLFeature feature) { |
| 80 | switch (feature) { |
| 81 | case kStandardDerivatives_GLSLFeature: { |
bsalomon | 861e103 | 2014-12-16 07:33:49 -0800 | [diff] [blame] | 82 | GrGLGpu* gpu = fProgramBuilder->gpu(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 83 | if (!gpu->glCaps().shaderDerivativeSupport()) { |
| 84 | return false; |
| 85 | } |
rmistry | 63a9f84 | 2014-10-17 06:07:08 -0700 | [diff] [blame] | 86 | if (kGLES_GrGLStandard == gpu->glStandard() && |
| 87 | k110_GrGLSLGeneration == gpu->glslGeneration()) { |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 88 | this->addFeature(1 << kStandardDerivatives_GLSLFeature, |
| 89 | "GL_OES_standard_derivatives"); |
| 90 | } |
| 91 | return true; |
| 92 | } |
| 93 | default: |
| 94 | SkFAIL("Unexpected GLSLFeature requested."); |
| 95 | return false; |
| 96 | } |
| 97 | } |
| 98 | |
joshualitt | b0a8a37 | 2014-09-23 09:50:21 -0700 | [diff] [blame] | 99 | SkString GrGLFragmentShaderBuilder::ensureFSCoords2D( |
| 100 | const GrGLProcessor::TransformedCoordsArray& coords, int index) { |
joshualitt | 23e280d | 2014-09-18 12:26:38 -0700 | [diff] [blame] | 101 | if (kVec3f_GrSLType != coords[index].getType()) { |
| 102 | SkASSERT(kVec2f_GrSLType == coords[index].getType()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 103 | return coords[index].getName(); |
| 104 | } |
| 105 | |
| 106 | SkString coords2D("coords2D"); |
| 107 | if (0 != index) { |
| 108 | coords2D.appendf("_%i", index); |
| 109 | } |
| 110 | this->codeAppendf("\tvec2 %s = %s.xy / %s.z;", |
| 111 | coords2D.c_str(), coords[index].c_str(), coords[index].c_str()); |
| 112 | return coords2D; |
| 113 | } |
| 114 | |
| 115 | const char* GrGLFragmentShaderBuilder::fragmentPosition() { |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 116 | fHasReadFragmentPosition = true; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 117 | |
bsalomon | 861e103 | 2014-12-16 07:33:49 -0800 | [diff] [blame] | 118 | GrGLGpu* gpu = fProgramBuilder->gpu(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 119 | // We only declare "gl_FragCoord" when we're in the case where we want to use layout qualifiers |
| 120 | // to reverse y. Otherwise it isn't necessary and whether the "in" qualifier appears in the |
| 121 | // declaration varies in earlier GLSL specs. So it is simpler to omit it. |
| 122 | if (fTopLeftFragPosRead) { |
| 123 | fSetupFragPosition = true; |
| 124 | return "gl_FragCoord"; |
| 125 | } else if (gpu->glCaps().fragCoordConventionsSupport()) { |
| 126 | if (!fSetupFragPosition) { |
| 127 | if (gpu->glslGeneration() < k150_GrGLSLGeneration) { |
| 128 | this->addFeature(1 << kFragCoordConventions_GLSLPrivateFeature, |
| 129 | "GL_ARB_fragment_coord_conventions"); |
| 130 | } |
| 131 | fInputs.push_back().set(kVec4f_GrSLType, |
| 132 | GrGLShaderVar::kIn_TypeModifier, |
| 133 | "gl_FragCoord", |
bsalomon | c0bd648 | 2014-12-09 10:04:14 -0800 | [diff] [blame] | 134 | kDefault_GrSLPrecision, |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 135 | GrGLShaderVar::kUpperLeft_Origin); |
| 136 | fSetupFragPosition = true; |
| 137 | } |
| 138 | return "gl_FragCoord"; |
| 139 | } else { |
| 140 | static const char* kCoordName = "fragCoordYDown"; |
| 141 | if (!fSetupFragPosition) { |
| 142 | // temporarily change the stage index because we're inserting non-stage code. |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 143 | GrGLProgramBuilder::AutoStageRestore asr(fProgramBuilder); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 144 | SkASSERT(!fProgramBuilder->fUniformHandles.fRTHeightUni.isValid()); |
| 145 | const char* rtHeightName; |
| 146 | |
| 147 | fProgramBuilder->fUniformHandles.fRTHeightUni = |
| 148 | fProgramBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 149 | kFloat_GrSLType, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 150 | kDefault_GrSLPrecision, |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 151 | "RTHeight", |
| 152 | &rtHeightName); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 153 | |
| 154 | // Using glFragCoord.zw for the last two components tickles an Adreno driver bug that |
| 155 | // causes programs to fail to link. Making this function return a vec2() didn't fix the |
| 156 | // problem but using 1.0 for the last two components does. |
| 157 | this->codePrependf("\tvec4 %s = vec4(gl_FragCoord.x, %s - gl_FragCoord.y, 1.0, " |
| 158 | "1.0);\n", kCoordName, rtHeightName); |
| 159 | fSetupFragPosition = true; |
| 160 | } |
| 161 | SkASSERT(fProgramBuilder->fUniformHandles.fRTHeightUni.isValid()); |
| 162 | return kCoordName; |
| 163 | } |
| 164 | } |
| 165 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 166 | const char* GrGLFragmentShaderBuilder::dstColor() { |
| 167 | fHasReadDstColor = true; |
| 168 | |
bsalomon | 861e103 | 2014-12-16 07:33:49 -0800 | [diff] [blame] | 169 | GrGLGpu* gpu = fProgramBuilder->gpu(); |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 170 | if (gpu->glCaps().fbFetchSupport()) { |
| 171 | this->addFeature(1 << (GrGLFragmentShaderBuilder::kLastGLSLPrivateFeature + 1), |
| 172 | gpu->glCaps().fbFetchExtensionString()); |
joshualitt | b4384b9 | 2014-10-21 12:53:15 -0700 | [diff] [blame] | 173 | |
joshualitt | 3c1096f | 2015-01-13 13:13:59 -0800 | [diff] [blame^] | 174 | // Some versions of this extension string require declaring custom color output on ES 3.0+ |
joshualitt | b4384b9 | 2014-10-21 12:53:15 -0700 | [diff] [blame] | 175 | const char* fbFetchColorName = gpu->glCaps().fbFetchColorName(); |
joshualitt | 3c1096f | 2015-01-13 13:13:59 -0800 | [diff] [blame^] | 176 | if (gpu->glCaps().fbFetchNeedsCustomOutput()) { |
joshualitt | b4384b9 | 2014-10-21 12:53:15 -0700 | [diff] [blame] | 177 | this->enableCustomOutput(); |
| 178 | fOutputs[fCustomColorOutputIndex].setTypeModifier(GrShaderVar::kInOut_TypeModifier); |
| 179 | fbFetchColorName = declared_color_output_name(); |
| 180 | } |
| 181 | return fbFetchColorName; |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 182 | } else if (fProgramBuilder->fUniformHandles.fDstCopySamplerUni.isValid()) { |
| 183 | return kDstCopyColorName; |
| 184 | } else { |
| 185 | return ""; |
joshualitt | db0d3ca | 2014-10-07 12:42:26 -0700 | [diff] [blame] | 186 | } |
| 187 | } |
joshualitt | fe1233c | 2014-10-07 12:16:35 -0700 | [diff] [blame] | 188 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 189 | void GrGLFragmentShaderBuilder::emitCodeToReadDstTexture() { |
| 190 | bool topDown = SkToBool(kTopLeftOrigin_DstReadKeyBit & fProgramBuilder->header().fDstReadKey); |
| 191 | const char* dstCopyTopLeftName; |
| 192 | const char* dstCopyCoordScaleName; |
| 193 | const char* dstCopySamplerName; |
| 194 | uint32_t configMask; |
| 195 | if (SkToBool(kUseAlphaConfig_DstReadKeyBit & fProgramBuilder->header().fDstReadKey)) { |
| 196 | configMask = kA_GrColorComponentFlag; |
| 197 | } else { |
| 198 | configMask = kRGBA_GrColorComponentFlags; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 199 | } |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 200 | fProgramBuilder->fUniformHandles.fDstCopySamplerUni = |
| 201 | fProgramBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 202 | kSampler2D_GrSLType, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 203 | kDefault_GrSLPrecision, |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 204 | "DstCopySampler", |
| 205 | &dstCopySamplerName); |
| 206 | fProgramBuilder->fUniformHandles.fDstCopyTopLeftUni = |
| 207 | fProgramBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 208 | kVec2f_GrSLType, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 209 | kDefault_GrSLPrecision, |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 210 | "DstCopyUpperLeft", |
| 211 | &dstCopyTopLeftName); |
| 212 | fProgramBuilder->fUniformHandles.fDstCopyScaleUni = |
| 213 | fProgramBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility, |
| 214 | kVec2f_GrSLType, |
bsalomon | 422f56f | 2014-12-09 10:18:12 -0800 | [diff] [blame] | 215 | kDefault_GrSLPrecision, |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 216 | "DstCopyCoordScale", |
| 217 | &dstCopyCoordScaleName); |
| 218 | const char* fragPos = this->fragmentPosition(); |
| 219 | |
| 220 | this->codeAppend("// Read color from copy of the destination.\n"); |
| 221 | this->codeAppendf("vec2 _dstTexCoord = (%s.xy - %s) * %s;", |
| 222 | fragPos, dstCopyTopLeftName, dstCopyCoordScaleName); |
| 223 | if (!topDown) { |
| 224 | this->codeAppend("_dstTexCoord.y = 1.0 - _dstTexCoord.y;"); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 225 | } |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 226 | this->codeAppendf("vec4 %s = ", GrGLFragmentShaderBuilder::kDstCopyColorName); |
| 227 | this->appendTextureLookup(dstCopySamplerName, |
| 228 | "_dstTexCoord", |
| 229 | configMask, |
| 230 | "rgba"); |
| 231 | this->codeAppend(";"); |
| 232 | } |
| 233 | |
| 234 | void GrGLFragmentShaderBuilder::enableCustomOutput() { |
joshualitt | b4384b9 | 2014-10-21 12:53:15 -0700 | [diff] [blame] | 235 | if (!fHasCustomColorOutput) { |
| 236 | fHasCustomColorOutput = true; |
| 237 | fCustomColorOutputIndex = fOutputs.count(); |
| 238 | fOutputs.push_back().set(kVec4f_GrSLType, |
| 239 | GrGLShaderVar::kOut_TypeModifier, |
| 240 | declared_color_output_name()); |
| 241 | } |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | void GrGLFragmentShaderBuilder::enableSecondaryOutput() { |
| 245 | SkASSERT(!fHasSecondaryOutput); |
| 246 | fHasSecondaryOutput = true; |
| 247 | fOutputs.push_back().set(kVec4f_GrSLType, GrGLShaderVar::kOut_TypeModifier, |
| 248 | dual_source_output_name()); |
| 249 | } |
| 250 | |
| 251 | const char* GrGLFragmentShaderBuilder::getPrimaryColorOutputName() const { |
| 252 | return fHasCustomColorOutput ? declared_color_output_name() : "gl_FragColor"; |
| 253 | } |
| 254 | |
| 255 | const char* GrGLFragmentShaderBuilder::getSecondaryColorOutputName() const { |
| 256 | return dual_source_output_name(); |
| 257 | } |
| 258 | |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 259 | bool GrGLFragmentShaderBuilder::compileAndAttachShaders(GrGLuint programId, |
| 260 | SkTDArray<GrGLuint>* shaderIds) const { |
bsalomon | 861e103 | 2014-12-16 07:33:49 -0800 | [diff] [blame] | 261 | GrGLGpu* gpu = fProgramBuilder->gpu(); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 262 | SkString fragShaderSrc(GrGetGLSLVersionDecl(gpu->ctxInfo())); |
| 263 | fragShaderSrc.append(fExtensions); |
bsalomon | c0bd648 | 2014-12-09 10:04:14 -0800 | [diff] [blame] | 264 | append_default_precision_qualifier(kDefault_GrSLPrecision, |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 265 | gpu->glStandard(), |
| 266 | &fragShaderSrc); |
| 267 | fProgramBuilder->appendUniformDecls(GrGLProgramBuilder::kFragment_Visibility, &fragShaderSrc); |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 268 | this->appendDecls(fInputs, &fragShaderSrc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 269 | // We shouldn't have declared outputs on 1.10 |
| 270 | SkASSERT(k110_GrGLSLGeneration != gpu->glslGeneration() || fOutputs.empty()); |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 271 | this->appendDecls(fOutputs, &fragShaderSrc); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 272 | fragShaderSrc.append(fFunctions); |
| 273 | fragShaderSrc.append("void main() {\n"); |
| 274 | fragShaderSrc.append(fCode); |
| 275 | fragShaderSrc.append("}\n"); |
| 276 | |
robertphillips | 754f4e9 | 2014-09-18 13:52:08 -0700 | [diff] [blame] | 277 | GrGLuint fragShaderId = GrGLCompileAndAttachShader(gpu->glContext(), programId, |
| 278 | GR_GL_FRAGMENT_SHADER, fragShaderSrc, |
| 279 | gpu->gpuStats()); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 280 | if (!fragShaderId) { |
| 281 | return false; |
| 282 | } |
| 283 | |
| 284 | *shaderIds->append() = fragShaderId; |
| 285 | |
| 286 | return true; |
| 287 | } |
| 288 | |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 289 | void GrGLFragmentShaderBuilder::bindFragmentShaderLocations(GrGLuint programID) { |
rmistry | 63a9f84 | 2014-10-17 06:07:08 -0700 | [diff] [blame] | 290 | // ES 3.00 requires custom color output but doesn't support bindFragDataLocation |
| 291 | if (fHasCustomColorOutput && |
| 292 | kGLES_GrGLStandard != fProgramBuilder->gpu()->ctxInfo().standard()) { |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 293 | GL_CALL(BindFragDataLocation(programID, 0, declared_color_output_name())); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 294 | } |
joshualitt | 47bb382 | 2014-10-07 16:43:25 -0700 | [diff] [blame] | 295 | if (fHasSecondaryOutput) { |
| 296 | GL_CALL(BindFragDataLocationIndexed(programID, 0, 1, dual_source_output_name())); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 297 | } |
| 298 | } |
| 299 | |
bsalomon | c0bd648 | 2014-12-09 10:04:14 -0800 | [diff] [blame] | 300 | void GrGLFragmentShaderBuilder::addVarying(GrGLVarying* v, GrSLPrecision fsPrec) { |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 301 | v->fFsIn = v->fVsOut; |
| 302 | if (v->fGsOut) { |
| 303 | v->fFsIn = v->fGsOut; |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 304 | } |
joshualitt | 74077b9 | 2014-10-24 11:26:03 -0700 | [diff] [blame] | 305 | fInputs.push_back().set(v->fType, GrGLShaderVar::kVaryingIn_TypeModifier, v->fFsIn, fsPrec); |
joshualitt | 30ba436 | 2014-08-21 20:18:45 -0700 | [diff] [blame] | 306 | } |