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Side by Side Diff: src/gpu/gl/builders/GrGLProgramBuilder.cpp

Issue 1584473002: Swizzle shader output and blend when using GL_RED to implement kAlpha_8_GrPixelConfig (Closed) Base URL: https://skia.googlesource.com/skia.git@hideformats
Patch Set: cleanup Created 4 years, 11 months ago
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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 9
10 #include "GrAutoLocaleSetter.h" 10 #include "GrAutoLocaleSetter.h"
11 #include "GrCoordTransform.h" 11 #include "GrCoordTransform.h"
12 #include "GrGLProgramBuilder.h" 12 #include "GrGLProgramBuilder.h"
13 #include "GrSwizzle.h"
13 #include "GrTexture.h" 14 #include "GrTexture.h"
14 #include "SkRTConf.h" 15 #include "SkRTConf.h"
15 #include "SkTraceEvent.h" 16 #include "SkTraceEvent.h"
16 #include "gl/GrGLGpu.h" 17 #include "gl/GrGLGpu.h"
17 #include "gl/GrGLProgram.h" 18 #include "gl/GrGLProgram.h"
18 #include "gl/GrGLSLPrettyPrint.h" 19 #include "gl/GrGLSLPrettyPrint.h"
19 #include "gl/builders/GrGLShaderStringBuilder.h" 20 #include "gl/builders/GrGLShaderStringBuilder.h"
20 #include "glsl/GrGLSLCaps.h" 21 #include "glsl/GrGLSLCaps.h"
21 #include "glsl/GrGLSLFragmentProcessor.h" 22 #include "glsl/GrGLSLFragmentProcessor.h"
22 #include "glsl/GrGLSLGeometryProcessor.h" 23 #include "glsl/GrGLSLGeometryProcessor.h"
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253 ignoresCoverage ? nullptr : coverageIn.c_ str(), 254 ignoresCoverage ? nullptr : coverageIn.c_ str(),
254 fFS.getPrimaryColorOutputName(), 255 fFS.getPrimaryColorOutputName(),
255 fFS.getSecondaryColorOutputName(), 256 fFS.getSecondaryColorOutputName(),
256 samplers); 257 samplers);
257 fXferProcessor->fGLProc->emitCode(args); 258 fXferProcessor->fGLProc->emitCode(args);
258 259
259 // We have to check that effects and the code they emit are consistent, ie i f an effect 260 // We have to check that effects and the code they emit are consistent, ie i f an effect
260 // asks for dst color, then the emit code needs to follow suit 261 // asks for dst color, then the emit code needs to follow suit
261 verify(xp); 262 verify(xp);
262 fFS.codeAppend("}"); 263 fFS.codeAppend("}");
264
265 // Swizzle the fragment shader outputs if necessary.
266 GrSwizzle swizzle;
267 swizzle.setFromKey(this->desc().header().fOutputSwizzle);
268 if (swizzle != GrSwizzle::RGBA()) {
269 fFS.codeAppendf("%s = %s.%s;", fFS.getPrimaryColorOutputName(),
270 fFS.getPrimaryColorOutputName(),
271 swizzle.c_str());
272 if (xp.hasSecondaryOutput()) {
273 fFS.codeAppendf("%s = %s.%s;", fFS.getSecondaryColorOutputName(),
274 fFS.getSecondaryColorOutputName(),
275 swizzle.c_str());
276 }
277 }
263 } 278 }
264 279
265 void GrGLProgramBuilder::verify(const GrPrimitiveProcessor& gp) { 280 void GrGLProgramBuilder::verify(const GrPrimitiveProcessor& gp) {
266 SkASSERT(fFS.hasReadFragmentPosition() == gp.willReadFragmentPosition()); 281 SkASSERT(fFS.hasReadFragmentPosition() == gp.willReadFragmentPosition());
267 } 282 }
268 283
269 void GrGLProgramBuilder::verify(const GrXferProcessor& xp) { 284 void GrGLProgramBuilder::verify(const GrXferProcessor& xp) {
270 SkASSERT(fFS.hasReadDstColor() == xp.willReadDstColor()); 285 SkASSERT(fFS.hasReadDstColor() == xp.willReadDstColor());
271 } 286 }
272 287
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478 } 493 }
479 494
480 //////////////////////////////////////////////////////////////////////////////// /////////////////// 495 //////////////////////////////////////////////////////////////////////////////// ///////////////////
481 496
482 GrGLInstalledFragProcs::~GrGLInstalledFragProcs() { 497 GrGLInstalledFragProcs::~GrGLInstalledFragProcs() {
483 int numProcs = fProcs.count(); 498 int numProcs = fProcs.count();
484 for (int i = 0; i < numProcs; ++i) { 499 for (int i = 0; i < numProcs; ++i) {
485 delete fProcs[i]; 500 delete fProcs[i];
486 } 501 }
487 } 502 }
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