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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #include "SkBlurMaskFilter.h" | 9 #include "SkBlurMaskFilter.h" |
10 #include "SkBlurMask.h" | 10 #include "SkBlurMask.h" |
11 #include "SkGpuBlurUtils.h" | 11 #include "SkGpuBlurUtils.h" |
12 #include "SkFlattenableBuffers.h" | 12 #include "SkFlattenableBuffers.h" |
13 #include "SkMaskFilter.h" | 13 #include "SkMaskFilter.h" |
14 #include "SkRTConf.h" | 14 #include "SkRTConf.h" |
15 #include "SkStringUtils.h" | 15 #include "SkStringUtils.h" |
16 #include "SkStrokeRec.h" | 16 #include "SkStrokeRec.h" |
17 | 17 |
18 #if SK_SUPPORT_GPU | 18 #if SK_SUPPORT_GPU |
19 #include "GrContext.h" | 19 #include "GrContext.h" |
20 #include "GrTexture.h" | 20 #include "GrTexture.h" |
21 #include "effects/GrSimpleTextureEffect.h" | 21 #include "effects/GrSimpleTextureEffect.h" |
22 #include "SkGrPixelRef.h" | 22 #include "SkGrPixelRef.h" |
23 #endif | 23 #endif |
24 | 24 |
25 class SkBlurMaskFilterImpl : public SkMaskFilter { | 25 class SkBlurMaskFilterImpl : public SkMaskFilter { |
| 26 typedef SkMaskFilter INHERITED; |
| 27 |
26 public: | 28 public: |
27 SkBlurMaskFilterImpl(SkScalar sigma, SkBlurMaskFilter::BlurStyle, uint32_t f
lags); | 29 SkBlurMaskFilterImpl(SkScalar sigma, SkBlurMaskFilter::BlurStyle, uint32_t f
lags); |
28 | 30 |
29 // overrides from SkMaskFilter | 31 // overrides from SkMaskFilter |
30 virtual SkMask::Format getFormat() const SK_OVERRIDE; | 32 virtual SkMask::Format getFormat() const SK_OVERRIDE; |
31 virtual bool filterMask(SkMask* dst, const SkMask& src, const SkMatrix&, | 33 virtual bool filterMask(SkMask* dst, const SkMask& src, const SkMatrix&, |
32 SkIPoint* margin) const SK_OVERRIDE; | 34 SkIPoint* margin) const SK_OVERRIDE; |
33 | 35 |
34 #if SK_SUPPORT_GPU | 36 #if SK_SUPPORT_GPU |
35 virtual bool canFilterMaskGPU(const SkRect& devBounds, | 37 virtual bool canFilterMaskGPU(const SkRect& devBounds, |
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67 | 69 |
68 SkBlurMaskFilterImpl(SkFlattenableReadBuffer&); | 70 SkBlurMaskFilterImpl(SkFlattenableReadBuffer&); |
69 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; | 71 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; |
70 | 72 |
71 SkScalar computeXformedSigma(const SkMatrix& ctm) const { | 73 SkScalar computeXformedSigma(const SkMatrix& ctm) const { |
72 bool ignoreTransform = SkToBool(fBlurFlags & SkBlurMaskFilter::kIgnoreTr
ansform_BlurFlag); | 74 bool ignoreTransform = SkToBool(fBlurFlags & SkBlurMaskFilter::kIgnoreTr
ansform_BlurFlag); |
73 | 75 |
74 SkScalar xformedSigma = ignoreTransform ? fSigma : ctm.mapRadius(fSigma)
; | 76 SkScalar xformedSigma = ignoreTransform ? fSigma : ctm.mapRadius(fSigma)
; |
75 return SkMinScalar(xformedSigma, kMAX_BLUR_SIGMA); | 77 return SkMinScalar(xformedSigma, kMAX_BLUR_SIGMA); |
76 } | 78 } |
77 | |
78 typedef SkMaskFilter INHERITED; | |
79 }; | 79 }; |
80 | 80 |
81 const SkScalar SkBlurMaskFilterImpl::kMAX_BLUR_SIGMA = SkIntToScalar(128); | 81 const SkScalar SkBlurMaskFilterImpl::kMAX_BLUR_SIGMA = SkIntToScalar(128); |
82 | 82 |
83 SkMaskFilter* SkBlurMaskFilter::Create(SkScalar radius, | 83 SkMaskFilter* SkBlurMaskFilter::Create(SkScalar radius, |
84 SkBlurMaskFilter::BlurStyle style, | 84 SkBlurMaskFilter::BlurStyle style, |
85 uint32_t flags) { | 85 uint32_t flags) { |
86 // use !(radius > 0) instead of radius <= 0 to reject NaN values | 86 // use !(radius > 0) instead of radius <= 0 to reject NaN values |
87 if (!(radius > 0) || (unsigned)style >= SkBlurMaskFilter::kBlurStyleCount | 87 if (!(radius > 0) || (unsigned)style >= SkBlurMaskFilter::kBlurStyleCount |
88 || flags > SkBlurMaskFilter::kAll_BlurFlag) { | 88 || flags > SkBlurMaskFilter::kAll_BlurFlag) { |
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473 } else { | 473 } else { |
474 str->append("None"); | 474 str->append("None"); |
475 } | 475 } |
476 str->append("))"); | 476 str->append("))"); |
477 } | 477 } |
478 #endif | 478 #endif |
479 | 479 |
480 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkBlurMaskFilter) | 480 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkBlurMaskFilter) |
481 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBlurMaskFilterImpl) | 481 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkBlurMaskFilterImpl) |
482 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END | 482 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |
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