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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 "SkColorFilter.h" | 8 #include "SkColorFilter.h" |
9 | |
10 #include "SkReadBuffer.h" | 9 #include "SkReadBuffer.h" |
| 10 #include "SkString.h" |
11 #include "SkWriteBuffer.h" | 11 #include "SkWriteBuffer.h" |
12 #include "SkShader.h" | |
13 #include "SkUnPreMultiply.h" | |
14 #include "SkString.h" | |
15 | 12 |
16 bool SkColorFilter::asColorMode(SkColor* color, SkXfermode::Mode* mode) const { | 13 bool SkColorFilter::asColorMode(SkColor* color, SkXfermode::Mode* mode) const { |
17 return false; | 14 return false; |
18 } | 15 } |
19 | 16 |
20 bool SkColorFilter::asColorMatrix(SkScalar matrix[20]) const { | 17 bool SkColorFilter::asColorMatrix(SkScalar matrix[20]) const { |
21 return false; | 18 return false; |
22 } | 19 } |
23 | 20 |
24 bool SkColorFilter::asComponentTable(SkBitmap*) const { | 21 bool SkColorFilter::asComponentTable(SkBitmap*) const { |
(...skipping 11 matching lines...) Expand all Loading... |
36 | 33 |
37 SkColor SkColorFilter::filterColor(SkColor c) const { | 34 SkColor SkColorFilter::filterColor(SkColor c) const { |
38 SkPMColor dst, src = SkPreMultiplyColor(c); | 35 SkPMColor dst, src = SkPreMultiplyColor(c); |
39 this->filterSpan(&src, 1, &dst); | 36 this->filterSpan(&src, 1, &dst); |
40 return SkUnPreMultiply::PMColorToColor(dst); | 37 return SkUnPreMultiply::PMColorToColor(dst); |
41 } | 38 } |
42 | 39 |
43 GrFragmentProcessor* SkColorFilter::asFragmentProcessor(GrContext*) const { | 40 GrFragmentProcessor* SkColorFilter::asFragmentProcessor(GrContext*) const { |
44 return NULL; | 41 return NULL; |
45 } | 42 } |
| 43 |
| 44 ////////////////////////////////////////////////////////////////////////////////
/////////////////// |
| 45 |
| 46 class SkComposeColorFilter : public SkColorFilter { |
| 47 public: |
| 48 SkComposeColorFilter(SkColorFilter* outer, SkColorFilter* inner) |
| 49 : fOuter(SkRef(outer)) |
| 50 , fInner(SkRef(inner)) |
| 51 {} |
| 52 |
| 53 uint32_t getFlags() const SK_OVERRIDE { |
| 54 // Can only claim alphaunchanged and 16bit support if both our proxys do
. |
| 55 return fOuter->getFlags() & fInner->getFlags(); |
| 56 } |
| 57 |
| 58 void filterSpan(const SkPMColor shader[], int count, SkPMColor result[]) con
st SK_OVERRIDE { |
| 59 fInner->filterSpan(shader, count, result); |
| 60 fOuter->filterSpan(result, count, result); |
| 61 } |
| 62 |
| 63 void filterSpan16(const uint16_t shader[], int count, uint16_t result[]) con
st SK_OVERRIDE { |
| 64 SkASSERT(this->getFlags() & kHasFilter16_Flag); |
| 65 fInner->filterSpan16(shader, count, result); |
| 66 fOuter->filterSpan16(result, count, result); |
| 67 } |
| 68 |
| 69 #ifndef SK_IGNORE_TO_STRING |
| 70 void toString(SkString* str) const SK_OVERRIDE { |
| 71 SkString outerS, innerS; |
| 72 fOuter->toString(&outerS); |
| 73 fInner->toString(&innerS); |
| 74 str->appendf("SkComposeColorFilter: outer(%s) inner(%s)", outerS.c_str()
, innerS.c_str()); |
| 75 } |
| 76 #endif |
| 77 |
| 78 #if 0 // TODO: should we support composing the fragments? |
| 79 #if SK_SUPPORT_GPU |
| 80 GrFragmentProcessor* asFragmentProcessor(GrContext*) const SK_OVERRIDE; |
| 81 #endif |
| 82 #endif |
| 83 |
| 84 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkComposeColorFilter) |
| 85 |
| 86 protected: |
| 87 void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE { |
| 88 buffer.writeFlattenable(fOuter); |
| 89 buffer.writeFlattenable(fInner); |
| 90 } |
| 91 |
| 92 private: |
| 93 SkAutoTUnref<SkColorFilter> fOuter; |
| 94 SkAutoTUnref<SkColorFilter> fInner; |
| 95 |
| 96 typedef SkColorFilter INHERITED; |
| 97 }; |
| 98 |
| 99 SkFlattenable* SkComposeColorFilter::CreateProc(SkReadBuffer& buffer) { |
| 100 SkAutoTUnref<SkColorFilter> outer(buffer.readColorFilter()); |
| 101 SkAutoTUnref<SkColorFilter> inner(buffer.readColorFilter()); |
| 102 return CreateComposeFilter(outer, inner); |
| 103 } |
| 104 |
| 105 SkColorFilter* SkColorFilter::CreateComposeFilter(SkColorFilter* outer, SkColorF
ilter* inner) { |
| 106 if (!outer) { |
| 107 return SkSafeRef(inner); |
| 108 } |
| 109 if (!inner) { |
| 110 return SkSafeRef(outer); |
| 111 } |
| 112 return SkNEW_ARGS(SkComposeColorFilter, (outer, inner)); |
| 113 } |
| 114 |
| 115 |
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