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Side by Side Diff: src/effects/SkPerlinNoiseShader.cpp

Issue 1438003003: Move all ShaderBuilder files to GLSL (Closed) Base URL: https://skia.googlesource.com/skia.git@glslProgBuild
Patch Set: nits Created 5 years, 1 month ago
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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 "SkDither.h" 8 #include "SkDither.h"
9 #include "SkPerlinNoiseShader.h" 9 #include "SkPerlinNoiseShader.h"
10 #include "SkColorFilter.h" 10 #include "SkColorFilter.h"
11 #include "SkReadBuffer.h" 11 #include "SkReadBuffer.h"
12 #include "SkWriteBuffer.h" 12 #include "SkWriteBuffer.h"
13 #include "SkShader.h" 13 #include "SkShader.h"
14 #include "SkUnPreMultiply.h" 14 #include "SkUnPreMultiply.h"
15 #include "SkString.h" 15 #include "SkString.h"
16 16
17 #if SK_SUPPORT_GPU 17 #if SK_SUPPORT_GPU
18 #include "GrContext.h" 18 #include "GrContext.h"
19 #include "GrCoordTransform.h" 19 #include "GrCoordTransform.h"
20 #include "GrInvariantOutput.h" 20 #include "GrInvariantOutput.h"
21 #include "SkGr.h" 21 #include "SkGr.h"
22 #include "effects/GrConstColorProcessor.h" 22 #include "effects/GrConstColorProcessor.h"
23 #include "gl/GrGLFragmentProcessor.h" 23 #include "gl/GrGLFragmentProcessor.h"
24 #include "gl/builders/GrGLProgramBuilder.h" 24 #include "glsl/GrGLSLFragmentShaderBuilder.h"
25 #include "glsl/GrGLSLProgramBuilder.h"
25 #include "glsl/GrGLSLProgramDataManager.h" 26 #include "glsl/GrGLSLProgramDataManager.h"
26 #endif 27 #endif
27 28
28 static const int kBlockSize = 256; 29 static const int kBlockSize = 256;
29 static const int kBlockMask = kBlockSize - 1; 30 static const int kBlockMask = kBlockSize - 1;
30 static const int kPerlinNoise = 4096; 31 static const int kPerlinNoise = 4096;
31 static const int kRandMaximum = SK_MaxS32; // 2**31 - 1 32 static const int kRandMaximum = SK_MaxS32; // 2**31 - 1
32 33
33 namespace { 34 namespace {
34 35
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613 kNone_SkFilterQuality); 614 kNone_SkFilterQuality);
614 } 615 }
615 616
616 GrGLPerlinNoise::GrGLPerlinNoise(const GrProcessor& processor) 617 GrGLPerlinNoise::GrGLPerlinNoise(const GrProcessor& processor)
617 : fType(processor.cast<GrPerlinNoiseEffect>().type()) 618 : fType(processor.cast<GrPerlinNoiseEffect>().type())
618 , fStitchTiles(processor.cast<GrPerlinNoiseEffect>().stitchTiles()) 619 , fStitchTiles(processor.cast<GrPerlinNoiseEffect>().stitchTiles())
619 , fNumOctaves(processor.cast<GrPerlinNoiseEffect>().numOctaves()) { 620 , fNumOctaves(processor.cast<GrPerlinNoiseEffect>().numOctaves()) {
620 } 621 }
621 622
622 void GrGLPerlinNoise::emitCode(EmitArgs& args) { 623 void GrGLPerlinNoise::emitCode(EmitArgs& args) {
623 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); 624 GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder() ;
624 SkString vCoords = fsBuilder->ensureFSCoords2D(args.fCoords, 0); 625 SkString vCoords = fsBuilder->ensureFSCoords2D(args.fCoords, 0);
625 626
626 fBaseFrequencyUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_ Visibility, 627 fBaseFrequencyUni = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragmen t_Visibility,
627 kVec2f_GrSLType, kDefault_GrSLPrecis ion, 628 kVec2f_GrSLType, kDefault_GrSLPrecis ion,
628 "baseFrequency"); 629 "baseFrequency");
629 const char* baseFrequencyUni = args.fBuilder->getUniformCStr(fBaseFrequencyU ni); 630 const char* baseFrequencyUni = args.fBuilder->getUniformCStr(fBaseFrequencyU ni);
630 631
631 const char* stitchDataUni = nullptr; 632 const char* stitchDataUni = nullptr;
632 if (fStitchTiles) { 633 if (fStitchTiles) {
633 fStitchDataUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment _Visibility, 634 fStitchDataUni = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragme nt_Visibility,
634 kVec2f_GrSLType, kDefault_GrSLPreci sion, 635 kVec2f_GrSLType, kDefault_GrSLPreci sion,
635 "stitchData"); 636 "stitchData");
636 stitchDataUni = args.fBuilder->getUniformCStr(fStitchDataUni); 637 stitchDataUni = args.fBuilder->getUniformCStr(fStitchDataUni);
637 } 638 }
638 639
639 // There are 4 lines, so the center of each line is 1/8, 3/8, 5/8 and 7/8 640 // There are 4 lines, so the center of each line is 1/8, 3/8, 5/8 and 7/8
640 const char* chanCoordR = "0.125"; 641 const char* chanCoordR = "0.125";
641 const char* chanCoordG = "0.375"; 642 const char* chanCoordG = "0.375";
642 const char* chanCoordB = "0.625"; 643 const char* chanCoordB = "0.625";
643 const char* chanCoordA = "0.875"; 644 const char* chanCoordA = "0.875";
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995 str->append(" seed: "); 996 str->append(" seed: ");
996 str->appendScalar(fSeed); 997 str->appendScalar(fSeed);
997 str->append(" stitch tiles: "); 998 str->append(" stitch tiles: ");
998 str->append(fStitchTiles ? "true " : "false "); 999 str->append(fStitchTiles ? "true " : "false ");
999 1000
1000 this->INHERITED::toString(str); 1001 this->INHERITED::toString(str);
1001 1002
1002 str->append(")"); 1003 str->append(")");
1003 } 1004 }
1004 #endif 1005 #endif
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