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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 "SkBitmap.h" | 8 #include "SkBitmap.h" |
9 #include "SkBitmapController.h" | 9 #include "SkBitmapController.h" |
10 #include "SkBitmapProvider.h" | 10 #include "SkBitmapProvider.h" |
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158 | 158 |
159 // Our default return state is to downgrade the request to Low, w/ or w/o se
tting fBitmap | 159 // Our default return state is to downgrade the request to Low, w/ or w/o se
tting fBitmap |
160 // to a valid bitmap. | 160 // to a valid bitmap. |
161 fQuality = kLow_SkFilterQuality; | 161 fQuality = kLow_SkFilterQuality; |
162 | 162 |
163 SkSize invScaleSize; | 163 SkSize invScaleSize; |
164 if (!fInvMatrix.decomposeScale(&invScaleSize, nullptr)) { | 164 if (!fInvMatrix.decomposeScale(&invScaleSize, nullptr)) { |
165 return false; | 165 return false; |
166 } | 166 } |
167 | 167 |
168 // Use the smallest (non-inverse) scale to match the GPU impl. | 168 if (invScaleSize.width() > SK_Scalar1 || invScaleSize.height() > SK_Scalar1)
{ |
169 SkASSERT(invScaleSize.width() >= 0 && invScaleSize.height() >= 0); | |
170 const SkScalar invScale = SkTMax(invScaleSize.width(), invScaleSize.height()
); | |
171 | |
172 if (invScale > SK_Scalar1) { | |
173 fCurrMip.reset(SkMipMapCache::FindAndRef(provider.makeCacheDesc())); | 169 fCurrMip.reset(SkMipMapCache::FindAndRef(provider.makeCacheDesc())); |
174 if (nullptr == fCurrMip.get()) { | 170 if (nullptr == fCurrMip.get()) { |
175 SkBitmap orig; | 171 SkBitmap orig; |
176 if (!provider.asBitmap(&orig)) { | 172 if (!provider.asBitmap(&orig)) { |
177 return false; | 173 return false; |
178 } | 174 } |
179 fCurrMip.reset(SkMipMapCache::AddAndRef(orig)); | 175 fCurrMip.reset(SkMipMapCache::AddAndRef(orig)); |
180 if (nullptr == fCurrMip.get()) { | 176 if (nullptr == fCurrMip.get()) { |
181 return false; | 177 return false; |
182 } | 178 } |
183 } | 179 } |
184 // diagnostic for a crasher... | 180 // diagnostic for a crasher... |
185 if (nullptr == fCurrMip->data()) { | 181 if (nullptr == fCurrMip->data()) { |
186 sk_throw(); | 182 sk_throw(); |
187 } | 183 } |
188 | 184 |
189 SkScalar levelScale = SkScalarInvert(invScale); | 185 const SkSize scale = SkSize::Make(SkScalarInvert(invScaleSize.width()), |
| 186 SkScalarInvert(invScaleSize.height()))
; |
190 SkMipMap::Level level; | 187 SkMipMap::Level level; |
191 if (fCurrMip->extractLevel(levelScale, &level)) { | 188 if (fCurrMip->extractLevel(scale, &level)) { |
192 const SkSize& invScaleFixup = level.fScale; | 189 const SkSize& invScaleFixup = level.fScale; |
193 fInvMatrix.postScale(invScaleFixup.width(), invScaleFixup.height()); | 190 fInvMatrix.postScale(invScaleFixup.width(), invScaleFixup.height()); |
194 | 191 |
195 // todo: if we could wrap the fCurrMip in a pixelref, then we could
just install | 192 // todo: if we could wrap the fCurrMip in a pixelref, then we could
just install |
196 // that here, and not need to explicitly track it ourselves. | 193 // that here, and not need to explicitly track it ourselves. |
197 return fResultBitmap.installPixels(level.fPixmap); | 194 return fResultBitmap.installPixels(level.fPixmap); |
198 } else { | 195 } else { |
199 // failed to extract, so release the mipmap | 196 // failed to extract, so release the mipmap |
200 fCurrMip.reset(nullptr); | 197 fCurrMip.reset(nullptr); |
201 } | 198 } |
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224 fResultBitmap.getColorTable()); | 221 fResultBitmap.getColorTable()); |
225 } | 222 } |
226 | 223 |
227 SkBitmapController::State* SkDefaultBitmapController::onRequestBitmap(const SkBi
tmapProvider& bm, | 224 SkBitmapController::State* SkDefaultBitmapController::onRequestBitmap(const SkBi
tmapProvider& bm, |
228 const SkMa
trix& inverse, | 225 const SkMa
trix& inverse, |
229 SkFilterQu
ality quality, | 226 SkFilterQu
ality quality, |
230 void* stor
age, size_t size) { | 227 void* stor
age, size_t size) { |
231 return SkInPlaceNewCheck<SkDefaultBitmapControllerState>(storage, size, bm,
inverse, quality); | 228 return SkInPlaceNewCheck<SkDefaultBitmapControllerState>(storage, size, bm,
inverse, quality); |
232 } | 229 } |
233 | 230 |
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