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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
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 "SkDraw.h" | 8 #include "SkDraw.h" |
9 #include "SkBlitter.h" | 9 #include "SkBlitter.h" |
10 #include "SkBounder.h" | 10 #include "SkBounder.h" |
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981 switch (dc) { | 981 switch (dc) { |
982 case SkXfermode::kOne_Coeff: | 982 case SkXfermode::kOne_Coeff: |
983 case SkXfermode::kISA_Coeff: | 983 case SkXfermode::kISA_Coeff: |
984 case SkXfermode::kISC_Coeff: | 984 case SkXfermode::kISC_Coeff: |
985 return true; | 985 return true; |
986 default: | 986 default: |
987 return false; | 987 return false; |
988 } | 988 } |
989 } | 989 } |
990 | 990 |
991 bool SkDrawTreatAsHairline(const SkPaint& paint, const SkMatrix& matrix, | 991 bool SkDrawTreatAAStrokeAsHairline(SkScalar strokeWidth, const SkMatrix& matrix, |
992 SkScalar* coverage) { | 992 SkScalar* coverage) { |
993 SkASSERT(coverage); | 993 SkASSERT(strokeWidth > 0); |
994 if (SkPaint::kStroke_Style != paint.getStyle()) { | 994 // We need to try to fake a thick-stroke with a modulated hairline. |
995 return false; | |
996 } | |
997 SkScalar strokeWidth = paint.getStrokeWidth(); | |
998 if (0 == strokeWidth) { | |
999 *coverage = SK_Scalar1; | |
1000 return true; | |
1001 } | |
1002 | 995 |
1003 // if we get here, we need to try to fake a thick-stroke with a modulated | |
1004 // hairline | |
1005 | |
1006 if (!paint.isAntiAlias()) { | |
1007 return false; | |
1008 } | |
1009 if (matrix.hasPerspective()) { | 996 if (matrix.hasPerspective()) { |
1010 return false; | 997 return false; |
1011 } | 998 } |
1012 | 999 |
1013 SkVector src[2], dst[2]; | 1000 SkVector src[2], dst[2]; |
1014 src[0].set(strokeWidth, 0); | 1001 src[0].set(strokeWidth, 0); |
1015 src[1].set(0, strokeWidth); | 1002 src[1].set(0, strokeWidth); |
1016 matrix.mapVectors(dst, src, 2); | 1003 matrix.mapVectors(dst, src, 2); |
1017 SkScalar len0 = fast_len(dst[0]); | 1004 SkScalar len0 = fast_len(dst[0]); |
1018 SkScalar len1 = fast_len(dst[1]); | 1005 SkScalar len1 = fast_len(dst[1]); |
1019 if (len0 <= SK_Scalar1 && len1 <= SK_Scalar1) { | 1006 if (len0 <= SK_Scalar1 && len1 <= SK_Scalar1) { |
1020 *coverage = SkScalarAve(len0, len1); | 1007 if (NULL != coverage) { |
| 1008 *coverage = SkScalarAve(len0, len1); |
| 1009 } |
1021 return true; | 1010 return true; |
1022 } | 1011 } |
1023 return false; | 1012 return false; |
1024 } | 1013 } |
1025 | 1014 |
1026 void SkDraw::drawRRect(const SkRRect& rrect, const SkPaint& paint) const { | 1015 void SkDraw::drawRRect(const SkRRect& rrect, const SkPaint& paint) const { |
1027 SkDEBUGCODE(this->validate()); | 1016 SkDEBUGCODE(this->validate()); |
1028 | 1017 |
1029 if (fRC->isEmpty()) { | 1018 if (fRC->isEmpty()) { |
1030 return; | 1019 return; |
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2878 mask->fImage = SkMask::AllocImage(size); | 2867 mask->fImage = SkMask::AllocImage(size); |
2879 memset(mask->fImage, 0, mask->computeImageSize()); | 2868 memset(mask->fImage, 0, mask->computeImageSize()); |
2880 } | 2869 } |
2881 | 2870 |
2882 if (SkMask::kJustComputeBounds_CreateMode != mode) { | 2871 if (SkMask::kJustComputeBounds_CreateMode != mode) { |
2883 draw_into_mask(*mask, devPath, style); | 2872 draw_into_mask(*mask, devPath, style); |
2884 } | 2873 } |
2885 | 2874 |
2886 return true; | 2875 return true; |
2887 } | 2876 } |
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