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1 /* | 1 /* |
2 * Copyright 2012 The Android Open Source Project | 2 * Copyright 2012 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 "SkColorFilterImageFilter.h" | 8 #include "SkColorFilterImageFilter.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
11 #include "SkColorMatrixFilter.h" | 11 #include "SkColorMatrixFilter.h" |
12 #include "SkDevice.h" | 12 #include "SkDevice.h" |
13 #include "SkColorFilter.h" | 13 #include "SkColorFilter.h" |
14 #include "SkReadBuffer.h" | 14 #include "SkReadBuffer.h" |
15 #include "SkTableColorFilter.h" | 15 #include "SkTableColorFilter.h" |
16 #include "SkWriteBuffer.h" | 16 #include "SkWriteBuffer.h" |
17 | 17 |
18 SkColorFilterImageFilter* SkColorFilterImageFilter::Create(SkColorFilter* cf, | 18 SkColorFilterImageFilter* SkColorFilterImageFilter::Create(SkColorFilter* cf, |
19 SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) { | 19 SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) { |
20 if (NULL == cf) { | 20 if (NULL == cf) { |
21 return NULL; | 21 return NULL; |
22 } | 22 } |
23 | 23 |
24 SkColorFilter* inputColorFilter; | 24 SkColorFilter* inputCF; |
25 if (input && input->asColorFilter(&inputColorFilter)) { | 25 if (input && input->asColorFilter(&inputCF)) { |
26 SkAutoUnref autoUnref(inputColorFilter); | 26 // This is an optimization, as it collapses the hierarchy by just combin ing the two |
27 SkAutoTUnref<SkColorFilter> newCF(cf->newComposed(inputColorFilter)); | 27 // colorfilters into a single one, which the new imagefilter will wrap. |
28 SkAutoUnref autoUnref(inputCF); | |
29 SkAutoTUnref<SkColorFilter> newCF(SkColorFilter::CreateComposeFilter(cf, inputCF)); | |
28 if (newCF) { | 30 if (newCF) { |
29 return SkNEW_ARGS(SkColorFilterImageFilter, (newCF, input->getInput( 0), cropRect, 0)); | 31 return SkNEW_ARGS(SkColorFilterImageFilter, (newCF, input->getInput( 0), cropRect, 0)); |
30 } | 32 } |
31 } | 33 } |
32 | 34 |
33 return SkNEW_ARGS(SkColorFilterImageFilter, (cf, input, cropRect, uniqueID)) ; | 35 return SkNEW_ARGS(SkColorFilterImageFilter, (cf, input, cropRect, uniqueID)) ; |
34 } | 36 } |
35 | 37 |
36 SkColorFilterImageFilter::SkColorFilterImageFilter(SkColorFilter* cf, | 38 SkColorFilterImageFilter::SkColorFilterImageFilter(SkColorFilter* cf, |
37 SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) | 39 SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID) |
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
79 paint.setColorFilter(fColorFilter); | 81 paint.setColorFilter(fColorFilter); |
80 canvas.drawSprite(src, srcOffset.fX - bounds.fLeft, srcOffset.fY - bounds.fT op, &paint); | 82 canvas.drawSprite(src, srcOffset.fX - bounds.fLeft, srcOffset.fY - bounds.fT op, &paint); |
81 | 83 |
82 *result = device.get()->accessBitmap(false); | 84 *result = device.get()->accessBitmap(false); |
83 offset->fX = bounds.fLeft; | 85 offset->fX = bounds.fLeft; |
84 offset->fY = bounds.fTop; | 86 offset->fY = bounds.fTop; |
85 return true; | 87 return true; |
86 } | 88 } |
87 | 89 |
88 bool SkColorFilterImageFilter::asColorFilter(SkColorFilter** filter) const { | 90 bool SkColorFilterImageFilter::asColorFilter(SkColorFilter** filter) const { |
89 if (!cropRectIsSet()) { | 91 if (!this->cropRectIsSet()) { |
92 SkASSERT(1 == this->countInputs()); | |
93 // Since our factory has already performed the collapse optimization, we can assert that | |
94 // if we have an input, it is *not* also a colorfilter. | |
Stephen White
2015/03/05 18:52:18
Since we're now limiting the amount of collapsing
| |
95 SkASSERT(!this->getInput(0) || !this->getInput(0)->asColorFilter(NULL)); | |
90 if (filter) { | 96 if (filter) { |
91 *filter = fColorFilter; | 97 *filter = SkRef(fColorFilter); |
92 fColorFilter->ref(); | |
93 } | 98 } |
94 return true; | 99 return true; |
95 } | 100 } |
96 return false; | 101 return false; |
97 } | 102 } |
98 | 103 |
99 #ifndef SK_IGNORE_TO_STRING | 104 #ifndef SK_IGNORE_TO_STRING |
100 void SkColorFilterImageFilter::toString(SkString* str) const { | 105 void SkColorFilterImageFilter::toString(SkString* str) const { |
101 str->appendf("SkColorFilterImageFilter: ("); | 106 str->appendf("SkColorFilterImageFilter: ("); |
102 | 107 |
103 str->appendf("input: ("); | 108 str->appendf("input: ("); |
104 | 109 |
105 if (this->getInput(0)) { | 110 if (this->getInput(0)) { |
106 this->getInput(0)->toString(str); | 111 this->getInput(0)->toString(str); |
107 } | 112 } |
108 | 113 |
109 str->appendf(") color filter: "); | 114 str->appendf(") color filter: "); |
110 fColorFilter->toString(str); | 115 fColorFilter->toString(str); |
111 | 116 |
112 str->append(")"); | 117 str->append(")"); |
113 } | 118 } |
114 #endif | 119 #endif |
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