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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 "Sk64.h" | 8 #include "Sk64.h" |
9 #include "SkLazyPixelRef.h" | 9 #include "SkLazyPixelRef.h" |
10 #include "SkColorTable.h" | 10 #include "SkColorTable.h" |
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138 } | 138 } |
139 if (fCacheId != SkImageCache::UNINITIALIZED_ID) { | 139 if (fCacheId != SkImageCache::UNINITIALIZED_ID) { |
140 fImageCache->releaseCache(fCacheId); | 140 fImageCache->releaseCache(fCacheId); |
141 } | 141 } |
142 } | 142 } |
143 | 143 |
144 SkData* SkLazyPixelRef::onRefEncodedData() { | 144 SkData* SkLazyPixelRef::onRefEncodedData() { |
145 fData->ref(); | 145 fData->ref(); |
146 return fData; | 146 return fData; |
147 } | 147 } |
| 148 |
| 149 #include "SkImagePriv.h" |
| 150 |
| 151 static bool init_from_info(SkBitmap* bm, const SkImage::Info& info, |
| 152 size_t rowBytes) { |
| 153 bool isOpaque; |
| 154 SkBitmap::Config config = SkImageInfoToBitmapConfig(info, &isOpaque); |
| 155 if (SkBitmap::kNo_Config == config) { |
| 156 return false; |
| 157 } |
| 158 |
| 159 bm->setConfig(config, info.fWidth, info.fHeight, rowBytes); |
| 160 bm->setIsOpaque(isOpaque); |
| 161 return bm->allocPixels(); |
| 162 } |
| 163 |
| 164 bool SkLazyPixelRef::onImplementsDecodeInto() { |
| 165 return true; |
| 166 } |
| 167 |
| 168 bool SkLazyPixelRef::onDecodeInto(int pow2, SkBitmap* bitmap) { |
| 169 SkASSERT(fData != NULL && fData->size() > 0); |
| 170 if (fErrorInDecoding) { |
| 171 return false; |
| 172 } |
| 173 |
| 174 SkImage::Info info; |
| 175 // Determine the size of the image in order to determine how much memory to
allocate. |
| 176 // FIXME: As an optimization, only do this part once. |
| 177 fErrorInDecoding = !fDecodeProc(fData->data(), fData->size(), &info, NULL); |
| 178 if (fErrorInDecoding) { |
| 179 return false; |
| 180 } |
| 181 |
| 182 SkBitmapFactory::Target target; |
| 183 (void)ComputeMinRowBytesAndSize(info, &target.fRowBytes); |
| 184 |
| 185 SkBitmap tmp; |
| 186 if (!init_from_info(&tmp, info, target.fRowBytes)) { |
| 187 return false; |
| 188 } |
| 189 |
| 190 target.fAddr = tmp.getPixels(); |
| 191 fErrorInDecoding = !fDecodeProc(fData->data(), fData->size(), &info, &target
); |
| 192 if (fErrorInDecoding) { |
| 193 return false; |
| 194 } |
| 195 |
| 196 *bitmap = tmp; |
| 197 return true; |
| 198 } |
| 199 |
| 200 |
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