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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" |
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619 | 619 |
620 SkShader* shader = random->nextBool() ? | 620 SkShader* shader = random->nextBool() ? |
621 SkPerlinNoiseShader::CreateFractalNoise(baseFrequencyX, baseFrequencyY,
numOctaves, seed, | 621 SkPerlinNoiseShader::CreateFractalNoise(baseFrequencyX, baseFrequencyY,
numOctaves, seed, |
622 stitchTiles ? &tileSize : NULL)
: | 622 stitchTiles ? &tileSize : NULL)
: |
623 SkPerlinNoiseShader::CreateTurbulence(baseFrequencyX, baseFrequencyY, nu
mOctaves, seed, | 623 SkPerlinNoiseShader::CreateTurbulence(baseFrequencyX, baseFrequencyY, nu
mOctaves, seed, |
624 stitchTiles ? &tileSize : NULL); | 624 stitchTiles ? &tileSize : NULL); |
625 | 625 |
626 SkPaint paint; | 626 SkPaint paint; |
627 GrColor paintColor; | 627 GrColor paintColor; |
628 GrFragmentProcessor* effect; | 628 GrFragmentProcessor* effect; |
629 SkAssertResult(shader->asFragmentProcessor(context, paint, NULL, &paintColor
, &effect)); | 629 SkAssertResult(shader->asFragmentProcessor(context, paint, |
| 630 GrProcessorUnitTest::TestMatrix(r
andom), NULL, |
| 631 &paintColor, &effect)); |
630 | 632 |
631 SkDELETE(shader); | 633 SkDELETE(shader); |
632 | 634 |
633 return effect; | 635 return effect; |
634 } | 636 } |
635 | 637 |
636 GrGLPerlinNoise::GrGLPerlinNoise(const GrProcessor& processor) | 638 GrGLPerlinNoise::GrGLPerlinNoise(const GrProcessor& processor) |
637 : fType(processor.cast<GrPerlinNoiseEffect>().type()) | 639 : fType(processor.cast<GrPerlinNoiseEffect>().type()) |
638 , fStitchTiles(processor.cast<GrPerlinNoiseEffect>().stitchTiles()) | 640 , fStitchTiles(processor.cast<GrPerlinNoiseEffect>().stitchTiles()) |
639 , fNumOctaves(processor.cast<GrPerlinNoiseEffect>().numOctaves()) { | 641 , fNumOctaves(processor.cast<GrPerlinNoiseEffect>().numOctaves()) { |
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936 if (turbulence.stitchTiles()) { | 938 if (turbulence.stitchTiles()) { |
937 const SkPerlinNoiseShader::StitchData& stitchData = turbulence.stitchDat
a(); | 939 const SkPerlinNoiseShader::StitchData& stitchData = turbulence.stitchDat
a(); |
938 pdman.set2f(fStitchDataUni, SkIntToScalar(stitchData.fWidth), | 940 pdman.set2f(fStitchDataUni, SkIntToScalar(stitchData.fWidth), |
939 SkIntToScalar(stitchData.fHeight)); | 941 SkIntToScalar(stitchData.fHeight)); |
940 } | 942 } |
941 } | 943 } |
942 | 944 |
943 ///////////////////////////////////////////////////////////////////// | 945 ///////////////////////////////////////////////////////////////////// |
944 | 946 |
945 bool SkPerlinNoiseShader::asFragmentProcessor(GrContext* context, const SkPaint&
paint, | 947 bool SkPerlinNoiseShader::asFragmentProcessor(GrContext* context, const SkPaint&
paint, |
| 948 const SkMatrix& viewM, |
946 const SkMatrix* externalLocalMatri
x, | 949 const SkMatrix* externalLocalMatri
x, |
947 GrColor* paintColor, GrFragmentPro
cessor** fp) const { | 950 GrColor* paintColor, GrFragmentPro
cessor** fp) const { |
948 SkASSERT(context); | 951 SkASSERT(context); |
949 | 952 |
950 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); | 953 *paintColor = SkColor2GrColorJustAlpha(paint.getColor()); |
951 | 954 |
952 SkMatrix localMatrix = this->getLocalMatrix(); | 955 SkMatrix localMatrix = this->getLocalMatrix(); |
953 if (externalLocalMatrix) { | 956 if (externalLocalMatrix) { |
954 localMatrix.preConcat(*externalLocalMatrix); | 957 localMatrix.preConcat(*externalLocalMatrix); |
955 } | 958 } |
956 | 959 |
957 SkMatrix matrix = context->getMatrix(); | 960 SkMatrix matrix = viewM; |
958 matrix.preConcat(localMatrix); | 961 matrix.preConcat(localMatrix); |
959 | 962 |
960 if (0 == fNumOctaves) { | 963 if (0 == fNumOctaves) { |
961 SkColor clearColor = 0; | 964 SkColor clearColor = 0; |
962 if (kFractalNoise_Type == fType) { | 965 if (kFractalNoise_Type == fType) { |
963 clearColor = SkColorSetARGB(paint.getAlpha() / 2, 127, 127, 127); | 966 clearColor = SkColorSetARGB(paint.getAlpha() / 2, 127, 127, 127); |
964 } | 967 } |
965 SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter( | 968 SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter( |
966 clearColor, SkXfermode::kSrc_Mod
e)); | 969 clearColor, SkXfermode::kSrc_Mod
e)); |
967 *fp = cf->asFragmentProcessor(context); | 970 *fp = cf->asFragmentProcessor(context); |
968 return true; | 971 return true; |
969 } | 972 } |
970 | 973 |
971 // Either we don't stitch tiles, either we have a valid tile size | 974 // Either we don't stitch tiles, either we have a valid tile size |
972 SkASSERT(!fStitchTiles || !fTileSize.isEmpty()); | 975 SkASSERT(!fStitchTiles || !fTileSize.isEmpty()); |
973 | 976 |
974 SkPerlinNoiseShader::PaintingData* paintingData = | 977 SkPerlinNoiseShader::PaintingData* paintingData = |
975 SkNEW_ARGS(PaintingData, (fTileSize, fSeed, fBaseFrequencyX, fBaseFr
equencyY, matrix)); | 978 SkNEW_ARGS(PaintingData, (fTileSize, fSeed, fBaseFrequencyX, fBaseFr
equencyY, matrix)); |
976 SkAutoTUnref<GrTexture> permutationsTexture( | 979 SkAutoTUnref<GrTexture> permutationsTexture( |
977 GrRefCachedBitmapTexture(context, paintingData->getPermutationsBitmap(),
NULL)); | 980 GrRefCachedBitmapTexture(context, paintingData->getPermutationsBitmap(),
NULL)); |
978 SkAutoTUnref<GrTexture> noiseTexture( | 981 SkAutoTUnref<GrTexture> noiseTexture( |
979 GrRefCachedBitmapTexture(context, paintingData->getNoiseBitmap(), NULL))
; | 982 GrRefCachedBitmapTexture(context, paintingData->getNoiseBitmap(), NULL))
; |
980 | 983 |
981 SkMatrix m = context->getMatrix(); | 984 SkMatrix m = viewM; |
982 m.setTranslateX(-localMatrix.getTranslateX() + SK_Scalar1); | 985 m.setTranslateX(-localMatrix.getTranslateX() + SK_Scalar1); |
983 m.setTranslateY(-localMatrix.getTranslateY() + SK_Scalar1); | 986 m.setTranslateY(-localMatrix.getTranslateY() + SK_Scalar1); |
984 if ((permutationsTexture) && (noiseTexture)) { | 987 if ((permutationsTexture) && (noiseTexture)) { |
985 *fp = GrPerlinNoiseEffect::Create(fType, | 988 *fp = GrPerlinNoiseEffect::Create(fType, |
986 fNumOctaves, | 989 fNumOctaves, |
987 fStitchTiles, | 990 fStitchTiles, |
988 paintingData, | 991 paintingData, |
989 permutationsTexture, noiseTexture, | 992 permutationsTexture, noiseTexture, |
990 m, paint.getAlpha()); | 993 m, paint.getAlpha()); |
991 } else { | 994 } else { |
992 SkDELETE(paintingData); | 995 SkDELETE(paintingData); |
993 *fp = NULL; | 996 *fp = NULL; |
994 } | 997 } |
995 return true; | 998 return true; |
996 } | 999 } |
997 | 1000 |
998 #else | 1001 #else |
999 | 1002 |
1000 bool SkPerlinNoiseShader::asFragmentProcessor(GrContext*, const SkPaint&, const
SkMatrix*, GrColor*, | 1003 bool SkPerlinNoiseShader::asFragmentProcessor(GrContext*, const SkPaint&, const
SkMatrix&, |
| 1004 const SkMatrix*, GrColor*, |
1001 GrFragmentProcessor**) const { | 1005 GrFragmentProcessor**) const { |
1002 SkDEBUGFAIL("Should not call in GPU-less build"); | 1006 SkDEBUGFAIL("Should not call in GPU-less build"); |
1003 return false; | 1007 return false; |
1004 } | 1008 } |
1005 | 1009 |
1006 #endif | 1010 #endif |
1007 | 1011 |
1008 #ifndef SK_IGNORE_TO_STRING | 1012 #ifndef SK_IGNORE_TO_STRING |
1009 void SkPerlinNoiseShader::toString(SkString* str) const { | 1013 void SkPerlinNoiseShader::toString(SkString* str) const { |
1010 str->append("SkPerlinNoiseShader: ("); | 1014 str->append("SkPerlinNoiseShader: ("); |
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1030 str->append(" seed: "); | 1034 str->append(" seed: "); |
1031 str->appendScalar(fSeed); | 1035 str->appendScalar(fSeed); |
1032 str->append(" stitch tiles: "); | 1036 str->append(" stitch tiles: "); |
1033 str->append(fStitchTiles ? "true " : "false "); | 1037 str->append(fStitchTiles ? "true " : "false "); |
1034 | 1038 |
1035 this->INHERITED::toString(str); | 1039 this->INHERITED::toString(str); |
1036 | 1040 |
1037 str->append(")"); | 1041 str->append(")"); |
1038 } | 1042 } |
1039 #endif | 1043 #endif |
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