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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "SkImageGenerator.h" | 8 #include "SkImageGenerator.h" |
9 #include "SkNextID.h" | 9 #include "SkNextID.h" |
10 | 10 |
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191 // allocate space for all the pixels. | 191 // allocate space for all the pixels. |
192 ctable->dangerous_overwriteColors(ctStorage, ctCount); | 192 ctable->dangerous_overwriteColors(ctStorage, ctCount); |
193 } else { | 193 } else { |
194 SkASSERT(kIndex_8_SkColorType != bitmap->colorType()); | 194 SkASSERT(kIndex_8_SkColorType != bitmap->colorType()); |
195 // we should be the only owner | 195 // we should be the only owner |
196 SkASSERT(ctable->unique()); | 196 SkASSERT(ctable->unique()); |
197 } | 197 } |
198 return true; | 198 return true; |
199 } | 199 } |
200 | 200 |
| 201 SkImageGenerator::Result SkImageGenerator::canDecodeAndScale(const SkColorType c
olorType, const SkScalar scale, SkISize* availableSize, SkISize* lowerSize) { |
| 202 return this->onCanDecodeAndScale(colorType, scale, availableSize, lowerSize)
; |
| 203 } |
| 204 |
| 205 SkImageGenerator::Result SkImageGenerator::onCanDecodeAndScale(const SkColorType
colorType, const SkScalar scale, SkISize* availableSize, SkISize* lowerSize) { |
| 206 unsigned result = SkImageGenerator::kNotAvailable; |
| 207 if (colorType == fInfo.colorType()) |
| 208 result |= SkImageGenerator::kDecode; |
| 209 if (scale == SK_Scalar1) { |
| 210 result |= SkImageGenerator::kScale; |
| 211 if (availableSize) { |
| 212 availableSize->fWidth = fInfo.width(); |
| 213 availableSize->fHeight = fInfo.height(); |
| 214 } |
| 215 if (lowerSize) { |
| 216 availableSize->fWidth = availableSize->fHeight = 0; |
| 217 } |
| 218 } |
| 219 return static_cast<SkImageGenerator::Result>(result); |
| 220 } |
| 221 |
201 #include "SkGraphics.h" | 222 #include "SkGraphics.h" |
202 | 223 |
203 static SkGraphics::ImageGeneratorFromEncodedFactory gFactory; | 224 static SkGraphics::ImageGeneratorFromEncodedFactory gFactory; |
204 | 225 |
205 SkGraphics::ImageGeneratorFromEncodedFactory | 226 SkGraphics::ImageGeneratorFromEncodedFactory |
206 SkGraphics::SetImageGeneratorFromEncodedFactory(ImageGeneratorFromEncodedFactory
factory) | 227 SkGraphics::SetImageGeneratorFromEncodedFactory(ImageGeneratorFromEncodedFactory
factory) |
207 { | 228 { |
208 ImageGeneratorFromEncodedFactory prev = gFactory; | 229 ImageGeneratorFromEncodedFactory prev = gFactory; |
209 gFactory = factory; | 230 gFactory = factory; |
210 return prev; | 231 return prev; |
211 } | 232 } |
212 | 233 |
213 SkImageGenerator* SkImageGenerator::NewFromEncoded(SkData* data) { | 234 SkImageGenerator* SkImageGenerator::NewFromEncoded(SkData* data) { |
214 if (nullptr == data) { | 235 if (nullptr == data) { |
215 return nullptr; | 236 return nullptr; |
216 } | 237 } |
217 if (gFactory) { | 238 if (gFactory) { |
218 if (SkImageGenerator* generator = gFactory(data)) { | 239 if (SkImageGenerator* generator = gFactory(data)) { |
219 return generator; | 240 return generator; |
220 } | 241 } |
221 } | 242 } |
222 return SkImageGenerator::NewFromEncodedImpl(data); | 243 return SkImageGenerator::NewFromEncodedImpl(data); |
223 } | 244 } |
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