reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkBitmapCache.h" |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 9 | #include "SkImage.h" |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 10 | #include "SkResourceCache.h" |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 11 | #include "SkMipMap.h" |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 12 | #include "SkPixelRef.h" |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 13 | #include "SkRect.h" |
| 14 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 15 | /** |
| 16 | * Use this for bitmapcache and mipmapcache entries. |
| 17 | */ |
| 18 | uint64_t SkMakeResourceCacheSharedIDForBitmap(uint32_t bitmapGenID) { |
| 19 | uint64_t sharedID = SkSetFourByteTag('b', 'm', 'a', 'p'); |
| 20 | return (sharedID << 32) | bitmapGenID; |
| 21 | } |
| 22 | |
| 23 | void SkNotifyBitmapGenIDIsStale(uint32_t bitmapGenID) { |
| 24 | SkResourceCache::PostPurgeSharedID(SkMakeResourceCacheSharedIDForBitmap(bitmapGenID)); |
| 25 | } |
| 26 | |
| 27 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 28 | |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 29 | /** |
| 30 | This function finds the bounds of the bitmap *within its pixelRef*. |
| 31 | If the bitmap lacks a pixelRef, it will return an empty rect, since |
| 32 | that doesn't make sense. This may be a useful enough function that |
| 33 | it should be somewhere else (in SkBitmap?). |
| 34 | */ |
| 35 | static SkIRect get_bounds_from_bitmap(const SkBitmap& bm) { |
| 36 | if (!(bm.pixelRef())) { |
| 37 | return SkIRect::MakeEmpty(); |
| 38 | } |
| 39 | SkIPoint origin = bm.pixelRefOrigin(); |
| 40 | return SkIRect::MakeXYWH(origin.fX, origin.fY, bm.width(), bm.height()); |
| 41 | } |
| 42 | |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 43 | /** |
| 44 | * This function finds the bounds of the image. Today this is just the entire bounds, |
| 45 | * but in the future we may support subsets within an image, in which case this should |
| 46 | * return that subset (see get_bounds_from_bitmap). |
| 47 | */ |
| 48 | static SkIRect get_bounds_from_image(const SkImage* image) { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 49 | SkASSERT(image->width() > 0 && image->height() > 0); |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 50 | return SkIRect::MakeWH(image->width(), image->height()); |
| 51 | } |
| 52 | |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 53 | SkBitmapCacheDesc SkBitmapCacheDesc::Make(uint32_t imageID, int origWidth, int origHeight) { |
| 54 | SkASSERT(imageID); |
| 55 | SkASSERT(origWidth > 0 && origHeight > 0); |
| 56 | return { imageID, 0, 0, {0, 0, origWidth, origHeight} }; |
| 57 | } |
| 58 | |
| 59 | SkBitmapCacheDesc SkBitmapCacheDesc::Make(const SkBitmap& bm, int scaledWidth, int scaledHeight) { |
| 60 | SkASSERT(bm.width() > 0 && bm.height() > 0); |
| 61 | SkASSERT(scaledWidth > 0 && scaledHeight > 0); |
| 62 | SkASSERT(scaledWidth != bm.width() || scaledHeight != bm.height()); |
| 63 | |
| 64 | return { bm.getGenerationID(), scaledWidth, scaledHeight, get_bounds_from_bitmap(bm) }; |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | SkBitmapCacheDesc SkBitmapCacheDesc::Make(const SkBitmap& bm) { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 68 | SkASSERT(bm.width() > 0 && bm.height() > 0); |
| 69 | SkASSERT(bm.pixelRefOrigin() == SkIPoint::Make(0, 0)); |
| 70 | |
| 71 | return { bm.getGenerationID(), 0, 0, get_bounds_from_bitmap(bm) }; |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 72 | } |
| 73 | |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 74 | SkBitmapCacheDesc SkBitmapCacheDesc::Make(const SkImage* image, int scaledWidth, int scaledHeight) { |
| 75 | SkASSERT(image->width() > 0 && image->height() > 0); |
| 76 | SkASSERT(scaledWidth > 0 && scaledHeight > 0); |
| 77 | |
| 78 | // If the dimensions are the same, should we set them to 0,0? |
| 79 | //SkASSERT(scaledWidth != image->width() || scaledHeight != image->height()); |
| 80 | |
| 81 | return { image->uniqueID(), scaledWidth, scaledHeight, get_bounds_from_image(image) }; |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | SkBitmapCacheDesc SkBitmapCacheDesc::Make(const SkImage* image) { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 85 | SkASSERT(image->width() > 0 && image->height() > 0); |
| 86 | |
| 87 | return { image->uniqueID(), 0, 0, get_bounds_from_image(image) }; |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 88 | } |
| 89 | |
fmalita | 171e5b7 | 2014-10-22 11:20:40 -0700 | [diff] [blame] | 90 | namespace { |
| 91 | static unsigned gBitmapKeyNamespaceLabel; |
| 92 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 93 | struct BitmapKey : public SkResourceCache::Key { |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 94 | public: |
Mike Reed | d3a2af7 | 2016-11-07 14:30:00 -0500 | [diff] [blame] | 95 | BitmapKey(const SkBitmapCacheDesc& desc) : fDesc(desc) { |
| 96 | this->init(&gBitmapKeyNamespaceLabel, SkMakeResourceCacheSharedIDForBitmap(fDesc.fImageID), |
| 97 | sizeof(fDesc)); |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 98 | } |
qiankun.miao | 045bb7f | 2014-08-25 06:08:25 -0700 | [diff] [blame] | 99 | |
reed | 995b4bd | 2015-09-14 10:27:57 -0700 | [diff] [blame] | 100 | void dump() const { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 101 | SkDebugf("-- add [%d %d] %d [%d %d %d %d]\n", |
| 102 | fDesc.fScaledWidth, fDesc.fScaledHeight, fDesc.fImageID, |
| 103 | fDesc.fSubset.x(), fDesc.fSubset.y(), fDesc.fSubset.width(), fDesc.fSubset.height()); |
reed | 995b4bd | 2015-09-14 10:27:57 -0700 | [diff] [blame] | 104 | } |
| 105 | |
Mike Reed | d3a2af7 | 2016-11-07 14:30:00 -0500 | [diff] [blame] | 106 | const SkBitmapCacheDesc fDesc; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 107 | }; |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 108 | } |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 109 | |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 110 | ////////////////////// |
| 111 | #include "SkDiscardableMemory.h" |
| 112 | #include "SkNextID.h" |
| 113 | |
| 114 | void SkBitmapCache_setImmutableWithID(SkPixelRef* pr, uint32_t id) { |
| 115 | pr->setImmutableWithID(id); |
| 116 | } |
| 117 | |
| 118 | //#define REC_TRACE SkDebugf |
| 119 | static void REC_TRACE(const char format[], ...) {} |
| 120 | |
| 121 | // for diagnostics |
| 122 | static int32_t gRecCounter; |
| 123 | |
| 124 | class SkBitmapCache::Rec : public SkResourceCache::Rec { |
| 125 | public: |
| 126 | Rec(const SkBitmapCacheDesc& desc, const SkImageInfo& info, size_t rowBytes, |
| 127 | std::unique_ptr<SkDiscardableMemory> dm, void* block) |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 128 | : fKey(desc) |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 129 | , fDM(std::move(dm)) |
| 130 | , fMalloc(block) |
| 131 | , fInfo(info) |
| 132 | , fRowBytes(rowBytes) |
| 133 | , fExternalCounter(kBeforeFirstInstall_ExternalCounter) |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 134 | { |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 135 | SkASSERT(!(fDM && fMalloc)); // can't have both |
| 136 | |
| 137 | // We need an ID to return with the bitmap/pixelref. |
| 138 | // If they are not scaling, we can return the same ID as the key/desc |
| 139 | // If they are scaling, we need a new ID |
| 140 | if (desc.fScaledWidth == 0 && desc.fScaledHeight == 0) { |
| 141 | fPrUniqueID = desc.fImageID; |
| 142 | } else { |
| 143 | fPrUniqueID = SkNextID::ImageID(); |
| 144 | } |
| 145 | REC_TRACE(" Rec(%d): [%d %d] %d\n", |
| 146 | sk_atomic_inc(&gRecCounter), fInfo.width(), fInfo.height(), fPrUniqueID); |
| 147 | } |
| 148 | |
| 149 | ~Rec() override { |
| 150 | SkASSERT(0 == fExternalCounter || kBeforeFirstInstall_ExternalCounter == fExternalCounter); |
| 151 | if (fDM && kBeforeFirstInstall_ExternalCounter == fExternalCounter) { |
| 152 | // we never installed, so we need to unlock before we destroy the DM |
| 153 | SkASSERT(fDM->data()); |
| 154 | fDM->unlock(); |
| 155 | } |
| 156 | REC_TRACE("~Rec(%d): [%d %d] %d\n", |
| 157 | sk_atomic_dec(&gRecCounter) - 1, fInfo.width(), fInfo.height(), fPrUniqueID); |
| 158 | sk_free(fMalloc); // may be null |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 159 | } |
| 160 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 161 | const Key& getKey() const override { return fKey; } |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 162 | size_t bytesUsed() const override { |
Mike Reed | 5a2e50e | 2017-10-02 13:44:11 +0000 | [diff] [blame^] | 163 | return sizeof(fKey) + fInfo.getSafeSize(fRowBytes); |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 164 | } |
| 165 | bool canBePurged() override { |
| 166 | SkAutoMutexAcquire ama(fMutex); |
| 167 | return fExternalCounter == 0; |
| 168 | } |
| 169 | void postAddInstall(void* payload) override { |
| 170 | SkAssertResult(this->install(static_cast<SkBitmap*>(payload))); |
| 171 | } |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 172 | |
reed | 216b643 | 2015-08-19 12:25:40 -0700 | [diff] [blame] | 173 | const char* getCategory() const override { return "bitmap"; } |
| 174 | SkDiscardableMemory* diagnostic_only_getDiscardable() const override { |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 175 | return fDM.get(); |
| 176 | } |
| 177 | |
| 178 | static void ReleaseProc(void* addr, void* ctx) { |
| 179 | Rec* rec = static_cast<Rec*>(ctx); |
| 180 | SkAutoMutexAcquire ama(rec->fMutex); |
| 181 | |
| 182 | REC_TRACE(" Rec: [%d] releaseproc\n", rec->fPrUniqueID); |
| 183 | |
| 184 | SkASSERT(rec->fExternalCounter > 0); |
| 185 | rec->fExternalCounter -= 1; |
| 186 | if (rec->fDM) { |
| 187 | SkASSERT(rec->fMalloc == nullptr); |
| 188 | if (rec->fExternalCounter == 0) { |
| 189 | REC_TRACE(" Rec [%d] unlock\n", rec->fPrUniqueID); |
| 190 | rec->fDM->unlock(); |
| 191 | } |
| 192 | } else { |
| 193 | SkASSERT(rec->fMalloc != nullptr); |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | bool install(SkBitmap* bitmap) { |
| 198 | SkAutoMutexAcquire ama(fMutex); |
| 199 | |
| 200 | // are we still valid |
| 201 | if (!fDM && !fMalloc) { |
| 202 | REC_TRACE(" Rec: [%d] invalid\n", fPrUniqueID); |
| 203 | return false; |
| 204 | } |
| 205 | |
| 206 | /* |
| 207 | constructor fExternalCount < 0 fDM->data() |
| 208 | after install fExternalCount > 0 fDM->data() |
| 209 | after Release fExternalCount == 0 !fDM->data() |
| 210 | */ |
| 211 | if (fDM) { |
| 212 | if (kBeforeFirstInstall_ExternalCounter == fExternalCounter) { |
| 213 | SkASSERT(fDM->data()); |
| 214 | } else if (fExternalCounter > 0) { |
| 215 | SkASSERT(fDM->data()); |
| 216 | } else { |
| 217 | SkASSERT(fExternalCounter == 0); |
| 218 | if (!fDM->lock()) { |
| 219 | REC_TRACE(" Rec [%d] re-lock failed\n", fPrUniqueID); |
| 220 | fDM.reset(nullptr); |
| 221 | return false; |
| 222 | } |
| 223 | REC_TRACE(" Rec [%d] re-lock succeeded\n", fPrUniqueID); |
| 224 | } |
| 225 | SkASSERT(fDM->data()); |
| 226 | } |
| 227 | |
Mike Reed | 086a427 | 2017-07-18 10:53:11 -0400 | [diff] [blame] | 228 | bitmap->installPixels(fInfo, fDM ? fDM->data() : fMalloc, fRowBytes, ReleaseProc, this); |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 229 | SkBitmapCache_setImmutableWithID(bitmap->pixelRef(), fPrUniqueID); |
| 230 | |
| 231 | REC_TRACE(" Rec: [%d] install new pr\n", fPrUniqueID); |
| 232 | |
| 233 | if (kBeforeFirstInstall_ExternalCounter == fExternalCounter) { |
| 234 | fExternalCounter = 1; |
| 235 | } else { |
| 236 | fExternalCounter += 1; |
| 237 | } |
| 238 | SkASSERT(fExternalCounter > 0); |
| 239 | return true; |
reed | 216b643 | 2015-08-19 12:25:40 -0700 | [diff] [blame] | 240 | } |
| 241 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 242 | static bool Finder(const SkResourceCache::Rec& baseRec, void* contextBitmap) { |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 243 | Rec* rec = (Rec*)&baseRec; |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 244 | SkBitmap* result = (SkBitmap*)contextBitmap; |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 245 | REC_TRACE(" Rec: [%d] found\n", rec->fPrUniqueID); |
| 246 | return rec->install(result); |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 247 | } |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 248 | |
| 249 | private: |
| 250 | BitmapKey fKey; |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 251 | |
| 252 | SkMutex fMutex; |
| 253 | |
| 254 | // either fDM or fMalloc can be non-null, but not both |
| 255 | std::unique_ptr<SkDiscardableMemory> fDM; |
| 256 | void* fMalloc; |
| 257 | |
| 258 | SkImageInfo fInfo; |
| 259 | size_t fRowBytes; |
| 260 | uint32_t fPrUniqueID; |
| 261 | |
| 262 | // This field counts the number of external pixelrefs we have created. They notify us when |
| 263 | // they are destroyed so we can decrement this. |
| 264 | // |
| 265 | // > 0 we have outstanding pixelrefs |
| 266 | // == 0 we have no outstanding pixelrefs, and can be safely purged |
| 267 | // < 0 we have been created, but not yet "installed" the first time. |
| 268 | // |
| 269 | int fExternalCounter; |
| 270 | |
| 271 | enum { |
| 272 | kBeforeFirstInstall_ExternalCounter = -1 |
| 273 | }; |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 274 | }; |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 275 | |
| 276 | void SkBitmapCache::PrivateDeleteRec(Rec* rec) { delete rec; } |
| 277 | |
| 278 | SkBitmapCache::RecPtr SkBitmapCache::Alloc(const SkBitmapCacheDesc& desc, const SkImageInfo& info, |
| 279 | SkPixmap* pmap) { |
| 280 | // Ensure that the caller is self-consistent: |
| 281 | // - if they are scaling, the info matches the scaled size |
| 282 | // - if they are not, the info matches the subset (i.e. the subset is the entire image) |
| 283 | if (desc.fScaledWidth == 0 && desc.fScaledHeight == 0) { |
| 284 | SkASSERT(info.width() == desc.fSubset.width()); |
| 285 | SkASSERT(info.height() == desc.fSubset.height()); |
| 286 | } else { |
| 287 | SkASSERT(info.width() == desc.fScaledWidth); |
| 288 | SkASSERT(info.height() == desc.fScaledHeight); |
| 289 | } |
| 290 | |
| 291 | const size_t rb = info.minRowBytes(); |
Mike Reed | 5a2e50e | 2017-10-02 13:44:11 +0000 | [diff] [blame^] | 292 | size_t size = info.getSafeSize(rb); |
Mike Reed | 7a542c5 | 2017-04-11 12:03:44 -0400 | [diff] [blame] | 293 | if (0 == size) { |
| 294 | return nullptr; |
| 295 | } |
| 296 | |
| 297 | std::unique_ptr<SkDiscardableMemory> dm; |
| 298 | void* block = nullptr; |
| 299 | |
| 300 | auto factory = SkResourceCache::GetDiscardableFactory(); |
| 301 | if (factory) { |
| 302 | dm.reset(factory(size)); |
| 303 | } else { |
| 304 | block = sk_malloc_flags(size, 0); |
| 305 | } |
| 306 | if (!dm && !block) { |
| 307 | return nullptr; |
| 308 | } |
| 309 | *pmap = SkPixmap(info, dm ? dm->data() : block, rb); |
| 310 | return RecPtr(new Rec(desc, info, rb, std::move(dm), block)); |
| 311 | } |
| 312 | |
| 313 | void SkBitmapCache::Add(RecPtr rec, SkBitmap* bitmap) { |
| 314 | SkResourceCache::Add(rec.release(), bitmap); |
| 315 | } |
| 316 | |
| 317 | bool SkBitmapCache::Find(const SkBitmapCacheDesc& desc, SkBitmap* result) { |
| 318 | desc.validate(); |
| 319 | return SkResourceCache::Find(BitmapKey(desc), SkBitmapCache::Rec::Finder, result); |
| 320 | } |
| 321 | |
| 322 | ////////////////////////////////////////////////////////////////////////////////////////// |
| 323 | ////////////////////////////////////////////////////////////////////////////////////////// |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 324 | |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 325 | #define CHECK_LOCAL(localCache, localName, globalName, ...) \ |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 326 | ((localCache) ? localCache->localName(__VA_ARGS__) : SkResourceCache::globalName(__VA_ARGS__)) |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 327 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 328 | namespace { |
| 329 | static unsigned gMipMapKeyNamespaceLabel; |
| 330 | |
| 331 | struct MipMapKey : public SkResourceCache::Key { |
| 332 | public: |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 333 | MipMapKey(uint32_t imageID, const SkIRect& subset, SkDestinationSurfaceColorMode colorMode) |
| 334 | : fImageID(imageID) |
| 335 | , fColorMode(static_cast<uint32_t>(colorMode)) |
| 336 | , fSubset(subset) |
reed | 6644d93 | 2016-06-10 11:41:47 -0700 | [diff] [blame] | 337 | { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 338 | SkASSERT(fImageID); |
| 339 | SkASSERT(!subset.isEmpty()); |
| 340 | this->init(&gMipMapKeyNamespaceLabel, SkMakeResourceCacheSharedIDForBitmap(fImageID), |
| 341 | sizeof(fImageID) + sizeof(fColorMode) + sizeof(fSubset)); |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 342 | } |
| 343 | |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 344 | uint32_t fImageID; |
Brian Osman | 7b8400d | 2016-11-08 17:08:54 -0500 | [diff] [blame] | 345 | uint32_t fColorMode; |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 346 | SkIRect fSubset; |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 347 | }; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 348 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 349 | struct MipMapRec : public SkResourceCache::Rec { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 350 | MipMapRec(uint32_t imageID, const SkIRect& subset, SkDestinationSurfaceColorMode colorMode, |
| 351 | const SkMipMap* result) |
| 352 | : fKey(imageID, subset, colorMode) |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 353 | , fMipMap(result) |
| 354 | { |
| 355 | fMipMap->attachToCacheAndRef(); |
reed | 92561a0 | 2014-10-02 13:47:08 -0700 | [diff] [blame] | 356 | } |
piotaixr | 42b0dfe | 2014-09-03 11:33:13 -0700 | [diff] [blame] | 357 | |
Brian Salomon | d3b6597 | 2017-03-22 12:05:03 -0400 | [diff] [blame] | 358 | ~MipMapRec() override { |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 359 | fMipMap->detachFromCacheAndUnref(); |
| 360 | } |
reed | 37c5a81 | 2014-10-03 13:23:30 -0700 | [diff] [blame] | 361 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 362 | const Key& getKey() const override { return fKey; } |
| 363 | size_t bytesUsed() const override { return sizeof(fKey) + fMipMap->size(); } |
reed | 216b643 | 2015-08-19 12:25:40 -0700 | [diff] [blame] | 364 | const char* getCategory() const override { return "mipmap"; } |
| 365 | SkDiscardableMemory* diagnostic_only_getDiscardable() const override { |
| 366 | return fMipMap->diagnostic_only_getDiscardable(); |
| 367 | } |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 368 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 369 | static bool Finder(const SkResourceCache::Rec& baseRec, void* contextMip) { |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 370 | const MipMapRec& rec = static_cast<const MipMapRec&>(baseRec); |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 371 | const SkMipMap* mm = SkRef(rec.fMipMap); |
| 372 | // the call to ref() above triggers a "lock" in the case of discardable memory, |
| 373 | // which means we can now check for null (in case the lock failed). |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 374 | if (nullptr == mm->data()) { |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 375 | mm->unref(); // balance our call to ref() |
| 376 | return false; |
| 377 | } |
| 378 | // the call must call unref() when they are done. |
| 379 | *(const SkMipMap**)contextMip = mm; |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 380 | return true; |
| 381 | } |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 382 | |
| 383 | private: |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 384 | MipMapKey fKey; |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 385 | const SkMipMap* fMipMap; |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 386 | }; |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 387 | } |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 388 | |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 389 | const SkMipMap* SkMipMapCache::FindAndRef(const SkBitmapCacheDesc& desc, |
Brian Osman | 7b8400d | 2016-11-08 17:08:54 -0500 | [diff] [blame] | 390 | SkDestinationSurfaceColorMode colorMode, |
reed | 98ed7b6 | 2015-09-15 12:38:12 -0700 | [diff] [blame] | 391 | SkResourceCache* localCache) { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 392 | SkASSERT(desc.fScaledWidth == 0); |
| 393 | SkASSERT(desc.fScaledHeight == 0); |
| 394 | MipMapKey key(desc.fImageID, desc.fSubset, colorMode); |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 395 | const SkMipMap* result; |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 396 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 397 | if (!CHECK_LOCAL(localCache, find, Find, key, MipMapRec::Finder, &result)) { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 398 | result = nullptr; |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 399 | } |
| 400 | return result; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 401 | } |
| 402 | |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 403 | static SkResourceCache::DiscardableFactory get_fact(SkResourceCache* localCache) { |
| 404 | return localCache ? localCache->GetDiscardableFactory() |
| 405 | : SkResourceCache::GetDiscardableFactory(); |
| 406 | } |
| 407 | |
Brian Osman | 7b8400d | 2016-11-08 17:08:54 -0500 | [diff] [blame] | 408 | const SkMipMap* SkMipMapCache::AddAndRef(const SkBitmap& src, |
| 409 | SkDestinationSurfaceColorMode colorMode, |
reed | 6644d93 | 2016-06-10 11:41:47 -0700 | [diff] [blame] | 410 | SkResourceCache* localCache) { |
Brian Osman | 7b8400d | 2016-11-08 17:08:54 -0500 | [diff] [blame] | 411 | SkMipMap* mipmap = SkMipMap::Build(src, colorMode, get_fact(localCache)); |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 412 | if (mipmap) { |
Mike Reed | 5fa3d6d | 2017-03-25 09:51:00 -0400 | [diff] [blame] | 413 | MipMapRec* rec = new MipMapRec(src.getGenerationID(), get_bounds_from_bitmap(src), |
| 414 | colorMode, mipmap); |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 415 | CHECK_LOCAL(localCache, add, Add, rec); |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 416 | src.pixelRef()->notifyAddedToCache(); |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 417 | } |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 418 | return mipmap; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 419 | } |