reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 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 | |
mtklein | 67a3271 | 2014-07-10 06:03:46 -0700 | [diff] [blame] | 8 | #include "SkChecksum.h" |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 9 | #include "SkResourceCache.h" |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 10 | #include "SkMipMap.h" |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 11 | #include "SkPixelRef.h" |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 12 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 13 | // This can be defined by the caller's build system |
| 14 | //#define SK_USE_DISCARDABLE_SCALEDIMAGECACHE |
| 15 | |
| 16 | #ifndef SK_DISCARDABLEMEMORY_SCALEDIMAGECACHE_COUNT_LIMIT |
| 17 | # define SK_DISCARDABLEMEMORY_SCALEDIMAGECACHE_COUNT_LIMIT 1024 |
| 18 | #endif |
| 19 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 20 | #ifndef SK_DEFAULT_IMAGE_CACHE_LIMIT |
| 21 | #define SK_DEFAULT_IMAGE_CACHE_LIMIT (2 * 1024 * 1024) |
| 22 | #endif |
| 23 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 24 | void SkResourceCache::Key::init(size_t length) { |
reed | 4f987e9 | 2014-08-20 13:41:56 -0700 | [diff] [blame] | 25 | SkASSERT(SkAlign4(length) == length); |
| 26 | // 2 is fCount32 and fHash |
| 27 | fCount32 = SkToS32(2 + (length >> 2)); |
| 28 | // skip both of our fields whe computing the murmur |
| 29 | fHash = SkChecksum::Murmur3(this->as32() + 2, (fCount32 - 2) << 2); |
| 30 | } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 31 | |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 32 | #include "SkTDynamicHash.h" |
| 33 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 34 | class SkResourceCache::Hash : |
| 35 | public SkTDynamicHash<SkResourceCache::Rec, SkResourceCache::Key> {}; |
commit-bot@chromium.org | 158f646 | 2014-04-02 17:03:09 +0000 | [diff] [blame] | 36 | |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 37 | |
| 38 | /////////////////////////////////////////////////////////////////////////////// |
| 39 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 40 | void SkResourceCache::init() { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 41 | fHead = NULL; |
| 42 | fTail = NULL; |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 43 | fHash = new Hash; |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 44 | fTotalBytesUsed = 0; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 45 | fCount = 0; |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 46 | fSingleAllocationByteLimit = 0; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 47 | fAllocator = NULL; |
| 48 | |
| 49 | // One of these should be explicit set by the caller after we return. |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 50 | fTotalByteLimit = 0; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 51 | fDiscardableFactory = NULL; |
| 52 | } |
| 53 | |
| 54 | #include "SkDiscardableMemory.h" |
| 55 | |
| 56 | class SkOneShotDiscardablePixelRef : public SkPixelRef { |
| 57 | public: |
commit-bot@chromium.org | 227c246 | 2014-01-24 18:33:07 +0000 | [diff] [blame] | 58 | SK_DECLARE_INST_COUNT(SkOneShotDiscardablePixelRef) |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 59 | // Ownership of the discardablememory is transfered to the pixelref |
| 60 | SkOneShotDiscardablePixelRef(const SkImageInfo&, SkDiscardableMemory*, size_t rowBytes); |
| 61 | ~SkOneShotDiscardablePixelRef(); |
| 62 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 63 | protected: |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 64 | virtual bool onNewLockPixels(LockRec*) SK_OVERRIDE; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 65 | virtual void onUnlockPixels() SK_OVERRIDE; |
| 66 | virtual size_t getAllocatedSizeInBytes() const SK_OVERRIDE; |
| 67 | |
| 68 | private: |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 69 | SkDiscardableMemory* fDM; |
| 70 | size_t fRB; |
| 71 | bool fFirstTime; |
| 72 | |
| 73 | typedef SkPixelRef INHERITED; |
| 74 | }; |
| 75 | |
| 76 | SkOneShotDiscardablePixelRef::SkOneShotDiscardablePixelRef(const SkImageInfo& info, |
| 77 | SkDiscardableMemory* dm, |
| 78 | size_t rowBytes) |
| 79 | : INHERITED(info) |
| 80 | , fDM(dm) |
| 81 | , fRB(rowBytes) |
| 82 | { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 83 | SkASSERT(dm->data()); |
| 84 | fFirstTime = true; |
| 85 | } |
| 86 | |
| 87 | SkOneShotDiscardablePixelRef::~SkOneShotDiscardablePixelRef() { |
| 88 | SkDELETE(fDM); |
| 89 | } |
| 90 | |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 91 | bool SkOneShotDiscardablePixelRef::onNewLockPixels(LockRec* rec) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 92 | if (fFirstTime) { |
| 93 | // we're already locked |
reed@google.com | c83a91f | 2013-12-13 13:41:14 +0000 | [diff] [blame] | 94 | SkASSERT(fDM->data()); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 95 | fFirstTime = false; |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 96 | goto SUCCESS; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 97 | } |
commit-bot@chromium.org | 281713e | 2013-12-12 18:08:08 +0000 | [diff] [blame] | 98 | |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 99 | // A previous call to onUnlock may have deleted our DM, so check for that |
| 100 | if (NULL == fDM) { |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 101 | return false; |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | if (!fDM->lock()) { |
| 105 | // since it failed, we delete it now, to free-up the resource |
| 106 | delete fDM; |
| 107 | fDM = NULL; |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 108 | return false; |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 109 | } |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 110 | |
| 111 | SUCCESS: |
| 112 | rec->fPixels = fDM->data(); |
| 113 | rec->fColorTable = NULL; |
| 114 | rec->fRowBytes = fRB; |
| 115 | return true; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | void SkOneShotDiscardablePixelRef::onUnlockPixels() { |
| 119 | SkASSERT(!fFirstTime); |
reed@google.com | c83a91f | 2013-12-13 13:41:14 +0000 | [diff] [blame] | 120 | fDM->unlock(); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | size_t SkOneShotDiscardablePixelRef::getAllocatedSizeInBytes() const { |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 124 | return this->info().getSafeSize(fRB); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 125 | } |
| 126 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 127 | class SkResourceCacheDiscardableAllocator : public SkBitmap::Allocator { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 128 | public: |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 129 | SkResourceCacheDiscardableAllocator(SkResourceCache::DiscardableFactory factory) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 130 | SkASSERT(factory); |
| 131 | fFactory = factory; |
| 132 | } |
| 133 | |
| 134 | virtual bool allocPixelRef(SkBitmap*, SkColorTable*) SK_OVERRIDE; |
skia.committer@gmail.com | cf0803b | 2013-12-10 07:02:03 +0000 | [diff] [blame] | 135 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 136 | private: |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 137 | SkResourceCache::DiscardableFactory fFactory; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 138 | }; |
| 139 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 140 | bool SkResourceCacheDiscardableAllocator::allocPixelRef(SkBitmap* bitmap, SkColorTable* ctable) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 141 | size_t size = bitmap->getSize(); |
sugoi | c197c8a | 2014-07-03 10:44:26 -0700 | [diff] [blame] | 142 | uint64_t size64 = bitmap->computeSize64(); |
| 143 | if (0 == size || size64 > (uint64_t)size) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 144 | return false; |
| 145 | } |
| 146 | |
| 147 | SkDiscardableMemory* dm = fFactory(size); |
| 148 | if (NULL == dm) { |
| 149 | return false; |
| 150 | } |
| 151 | |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 152 | // can we relax this? |
commit-bot@chromium.org | 28fcae2 | 2014-04-11 17:15:40 +0000 | [diff] [blame] | 153 | if (kN32_SkColorType != bitmap->colorType()) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 154 | return false; |
| 155 | } |
| 156 | |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame] | 157 | SkImageInfo info = bitmap->info(); |
commit-bot@chromium.org | e13af71 | 2014-01-13 20:39:14 +0000 | [diff] [blame] | 158 | bitmap->setPixelRef(SkNEW_ARGS(SkOneShotDiscardablePixelRef, |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 159 | (info, dm, bitmap->rowBytes())))->unref(); |
| 160 | bitmap->lockPixels(); |
| 161 | return bitmap->readyToDraw(); |
| 162 | } |
| 163 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 164 | SkResourceCache::SkResourceCache(DiscardableFactory factory) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 165 | this->init(); |
| 166 | fDiscardableFactory = factory; |
| 167 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 168 | fAllocator = SkNEW_ARGS(SkResourceCacheDiscardableAllocator, (factory)); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 169 | } |
| 170 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 171 | SkResourceCache::SkResourceCache(size_t byteLimit) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 172 | this->init(); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 173 | fTotalByteLimit = byteLimit; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 174 | } |
| 175 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 176 | SkResourceCache::~SkResourceCache() { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 177 | SkSafeUnref(fAllocator); |
| 178 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 179 | Rec* rec = fHead; |
| 180 | while (rec) { |
| 181 | Rec* next = rec->fNext; |
| 182 | SkDELETE(rec); |
| 183 | rec = next; |
| 184 | } |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 185 | delete fHash; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 186 | } |
| 187 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 188 | //////////////////////////////////////////////////////////////////////////////// |
| 189 | |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 190 | const SkResourceCache::Rec* SkResourceCache::findAndLock(const Key& key) { |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 191 | Rec* rec = fHash->find(key); |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 192 | if (rec) { |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 193 | this->moveToHead(rec); // for our LRU |
| 194 | rec->fLockCount += 1; |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 195 | } |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 196 | return rec; |
| 197 | } |
| 198 | |
| 199 | const SkResourceCache::Rec* SkResourceCache::addAndLock(Rec* rec) { |
| 200 | SkASSERT(rec); |
| 201 | // See if we already have this key (racy inserts, etc.) |
| 202 | const Rec* existing = this->findAndLock(rec->getKey()); |
| 203 | if (existing) { |
| 204 | SkDELETE(rec); |
| 205 | return existing; |
| 206 | } |
| 207 | |
| 208 | this->addToHead(rec); |
| 209 | SkASSERT(1 == rec->fLockCount); |
| 210 | fHash->add(rec); |
| 211 | // We may (now) be overbudget, so see if we need to purge something. |
| 212 | this->purgeAsNeeded(); |
| 213 | return rec; |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 214 | } |
| 215 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 216 | void SkResourceCache::add(Rec* rec) { |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 217 | SkASSERT(rec); |
| 218 | // See if we already have this key (racy inserts, etc.) |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 219 | const Rec* existing = this->findAndLock(rec->getKey()); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 220 | if (existing) { |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 221 | SkDELETE(rec); |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 222 | this->unlock(existing); |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 223 | return; |
| 224 | } |
| 225 | |
| 226 | this->addToHead(rec); |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 227 | SkASSERT(1 == rec->fLockCount); |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 228 | fHash->add(rec); |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 229 | this->unlock(rec); |
| 230 | } |
| 231 | |
| 232 | void SkResourceCache::unlock(SkResourceCache::ID id) { |
| 233 | SkASSERT(id); |
| 234 | |
| 235 | #ifdef SK_DEBUG |
| 236 | { |
| 237 | bool found = false; |
| 238 | Rec* rec = fHead; |
| 239 | while (rec != NULL) { |
| 240 | if (rec == id) { |
| 241 | found = true; |
| 242 | break; |
| 243 | } |
| 244 | rec = rec->fNext; |
| 245 | } |
| 246 | SkASSERT(found); |
| 247 | } |
| 248 | #endif |
| 249 | const Rec* rec = id; |
| 250 | SkASSERT(rec->fLockCount > 0); |
| 251 | // We're under our lock, and we're the only possible mutator, so unconsting is fine. |
| 252 | const_cast<Rec*>(rec)->fLockCount -= 1; |
| 253 | |
| 254 | // we may have been over-budget, but now have released something, so check |
| 255 | // if we should purge. |
| 256 | if (0 == rec->fLockCount) { |
| 257 | this->purgeAsNeeded(); |
| 258 | } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 259 | } |
| 260 | |
danakj | 790ffe3 | 2014-09-11 10:49:52 -0700 | [diff] [blame] | 261 | void SkResourceCache::remove(Rec* rec) { |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 262 | SkASSERT(0 == rec->fLockCount); |
| 263 | |
danakj | 790ffe3 | 2014-09-11 10:49:52 -0700 | [diff] [blame] | 264 | size_t used = rec->bytesUsed(); |
| 265 | SkASSERT(used <= fTotalBytesUsed); |
| 266 | |
| 267 | this->detach(rec); |
danakj | 790ffe3 | 2014-09-11 10:49:52 -0700 | [diff] [blame] | 268 | fHash->remove(rec->getKey()); |
danakj | 790ffe3 | 2014-09-11 10:49:52 -0700 | [diff] [blame] | 269 | |
| 270 | SkDELETE(rec); |
| 271 | |
| 272 | fTotalBytesUsed -= used; |
| 273 | fCount -= 1; |
| 274 | } |
| 275 | |
reed | 56b00d9 | 2014-09-11 12:22:34 -0700 | [diff] [blame] | 276 | void SkResourceCache::purgeAsNeeded(bool forcePurge) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 277 | size_t byteLimit; |
| 278 | int countLimit; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 279 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 280 | if (fDiscardableFactory) { |
| 281 | countLimit = SK_DISCARDABLEMEMORY_SCALEDIMAGECACHE_COUNT_LIMIT; |
| 282 | byteLimit = SK_MaxU32; // no limit based on bytes |
| 283 | } else { |
| 284 | countLimit = SK_MaxS32; // no limit based on count |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 285 | byteLimit = fTotalByteLimit; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 286 | } |
| 287 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 288 | Rec* rec = fTail; |
| 289 | while (rec) { |
reed | 56b00d9 | 2014-09-11 12:22:34 -0700 | [diff] [blame] | 290 | if (!forcePurge && fTotalBytesUsed < byteLimit && fCount < countLimit) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 291 | break; |
| 292 | } |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 293 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 294 | Rec* prev = rec->fPrev; |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 295 | if (0 == rec->fLockCount) { |
| 296 | this->remove(rec); |
| 297 | } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 298 | rec = prev; |
| 299 | } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 300 | } |
| 301 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 302 | size_t SkResourceCache::setTotalByteLimit(size_t newLimit) { |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 303 | size_t prevLimit = fTotalByteLimit; |
| 304 | fTotalByteLimit = newLimit; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 305 | if (newLimit < prevLimit) { |
| 306 | this->purgeAsNeeded(); |
| 307 | } |
| 308 | return prevLimit; |
| 309 | } |
| 310 | |
| 311 | /////////////////////////////////////////////////////////////////////////////// |
| 312 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 313 | void SkResourceCache::detach(Rec* rec) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 314 | Rec* prev = rec->fPrev; |
| 315 | Rec* next = rec->fNext; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 316 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 317 | if (!prev) { |
| 318 | SkASSERT(fHead == rec); |
| 319 | fHead = next; |
| 320 | } else { |
| 321 | prev->fNext = next; |
| 322 | } |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 323 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 324 | if (!next) { |
| 325 | fTail = prev; |
| 326 | } else { |
| 327 | next->fPrev = prev; |
| 328 | } |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 329 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 330 | rec->fNext = rec->fPrev = NULL; |
| 331 | } |
| 332 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 333 | void SkResourceCache::moveToHead(Rec* rec) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 334 | if (fHead == rec) { |
| 335 | return; |
| 336 | } |
| 337 | |
| 338 | SkASSERT(fHead); |
| 339 | SkASSERT(fTail); |
| 340 | |
| 341 | this->validate(); |
| 342 | |
| 343 | this->detach(rec); |
| 344 | |
| 345 | fHead->fPrev = rec; |
| 346 | rec->fNext = fHead; |
| 347 | fHead = rec; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 348 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 349 | this->validate(); |
| 350 | } |
| 351 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 352 | void SkResourceCache::addToHead(Rec* rec) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 353 | this->validate(); |
| 354 | |
| 355 | rec->fPrev = NULL; |
| 356 | rec->fNext = fHead; |
| 357 | if (fHead) { |
| 358 | fHead->fPrev = rec; |
| 359 | } |
| 360 | fHead = rec; |
| 361 | if (!fTail) { |
| 362 | fTail = rec; |
| 363 | } |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 364 | fTotalBytesUsed += rec->bytesUsed(); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 365 | fCount += 1; |
| 366 | |
| 367 | this->validate(); |
| 368 | } |
| 369 | |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 370 | /////////////////////////////////////////////////////////////////////////////// |
| 371 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 372 | #ifdef SK_DEBUG |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 373 | void SkResourceCache::validate() const { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 374 | if (NULL == fHead) { |
| 375 | SkASSERT(NULL == fTail); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 376 | SkASSERT(0 == fTotalBytesUsed); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 377 | return; |
| 378 | } |
| 379 | |
| 380 | if (fHead == fTail) { |
| 381 | SkASSERT(NULL == fHead->fPrev); |
| 382 | SkASSERT(NULL == fHead->fNext); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 383 | SkASSERT(fHead->bytesUsed() == fTotalBytesUsed); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 384 | return; |
| 385 | } |
| 386 | |
| 387 | SkASSERT(NULL == fHead->fPrev); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 388 | SkASSERT(fHead->fNext); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 389 | SkASSERT(NULL == fTail->fNext); |
bsalomon | 49f085d | 2014-09-05 13:34:00 -0700 | [diff] [blame] | 390 | SkASSERT(fTail->fPrev); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 391 | |
| 392 | size_t used = 0; |
| 393 | int count = 0; |
| 394 | const Rec* rec = fHead; |
| 395 | while (rec) { |
| 396 | count += 1; |
| 397 | used += rec->bytesUsed(); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 398 | SkASSERT(used <= fTotalBytesUsed); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 399 | rec = rec->fNext; |
| 400 | } |
| 401 | SkASSERT(fCount == count); |
| 402 | |
| 403 | rec = fTail; |
| 404 | while (rec) { |
| 405 | SkASSERT(count > 0); |
| 406 | count -= 1; |
| 407 | SkASSERT(used >= rec->bytesUsed()); |
| 408 | used -= rec->bytesUsed(); |
| 409 | rec = rec->fPrev; |
| 410 | } |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 411 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 412 | SkASSERT(0 == count); |
| 413 | SkASSERT(0 == used); |
| 414 | } |
| 415 | #endif |
| 416 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 417 | void SkResourceCache::dump() const { |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 418 | this->validate(); |
| 419 | |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 420 | const Rec* rec = fHead; |
| 421 | int locked = 0; |
| 422 | while (rec) { |
| 423 | locked += rec->fLockCount > 0; |
| 424 | rec = rec->fNext; |
| 425 | } |
| 426 | |
| 427 | SkDebugf("SkResourceCache: count=%d bytes=%d locked=%d %s\n", |
| 428 | fCount, fTotalBytesUsed, locked, |
| 429 | fDiscardableFactory ? "discardable" : "malloc"); |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 430 | } |
| 431 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 432 | size_t SkResourceCache::setSingleAllocationByteLimit(size_t newLimit) { |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 433 | size_t oldLimit = fSingleAllocationByteLimit; |
| 434 | fSingleAllocationByteLimit = newLimit; |
| 435 | return oldLimit; |
| 436 | } |
| 437 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 438 | size_t SkResourceCache::getSingleAllocationByteLimit() const { |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 439 | return fSingleAllocationByteLimit; |
| 440 | } |
| 441 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 442 | /////////////////////////////////////////////////////////////////////////////// |
| 443 | |
| 444 | #include "SkThread.h" |
| 445 | |
reed@google.com | be19dbe | 2013-07-24 15:06:34 +0000 | [diff] [blame] | 446 | SK_DECLARE_STATIC_MUTEX(gMutex); |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 447 | static SkResourceCache* gResourceCache = NULL; |
| 448 | static void cleanup_gResourceCache() { |
mtklein | 77ec7a6 | 2014-06-10 11:13:47 -0700 | [diff] [blame] | 449 | // We'll clean this up in our own tests, but disable for clients. |
| 450 | // Chrome seems to have funky multi-process things going on in unit tests that |
| 451 | // makes this unsafe to delete when the main process atexit()s. |
| 452 | // SkLazyPtr does the same sort of thing. |
| 453 | #if SK_DEVELOPER |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 454 | SkDELETE(gResourceCache); |
mtklein | 77ec7a6 | 2014-06-10 11:13:47 -0700 | [diff] [blame] | 455 | #endif |
| 456 | } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 457 | |
commit-bot@chromium.org | 60c8d24 | 2014-05-27 16:28:43 +0000 | [diff] [blame] | 458 | /** Must hold gMutex when calling. */ |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 459 | static SkResourceCache* get_cache() { |
commit-bot@chromium.org | 60c8d24 | 2014-05-27 16:28:43 +0000 | [diff] [blame] | 460 | // gMutex is always held when this is called, so we don't need to be fancy in here. |
mtklein | b83f6c3 | 2014-06-09 14:18:02 -0700 | [diff] [blame] | 461 | gMutex.assertHeld(); |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 462 | if (NULL == gResourceCache) { |
commit-bot@chromium.org | 60c8d24 | 2014-05-27 16:28:43 +0000 | [diff] [blame] | 463 | #ifdef SK_USE_DISCARDABLE_SCALEDIMAGECACHE |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 464 | gResourceCache = SkNEW_ARGS(SkResourceCache, (SkDiscardableMemory::Create)); |
commit-bot@chromium.org | 60c8d24 | 2014-05-27 16:28:43 +0000 | [diff] [blame] | 465 | #else |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 466 | gResourceCache = SkNEW_ARGS(SkResourceCache, (SK_DEFAULT_IMAGE_CACHE_LIMIT)); |
commit-bot@chromium.org | 60c8d24 | 2014-05-27 16:28:43 +0000 | [diff] [blame] | 467 | #endif |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 468 | atexit(cleanup_gResourceCache); |
commit-bot@chromium.org | 60c8d24 | 2014-05-27 16:28:43 +0000 | [diff] [blame] | 469 | } |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 470 | return gResourceCache; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 471 | } |
| 472 | |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 473 | void SkResourceCache::Unlock(SkResourceCache::ID id) { |
| 474 | SkAutoMutexAcquire am(gMutex); |
| 475 | get_cache()->unlock(id); |
| 476 | |
| 477 | // get_cache()->dump(); |
| 478 | } |
| 479 | |
| 480 | void SkResourceCache::Remove(SkResourceCache::ID id) { |
| 481 | SkAutoMutexAcquire am(gMutex); |
| 482 | SkASSERT(id); |
| 483 | |
| 484 | #ifdef SK_DEBUG |
| 485 | { |
| 486 | bool found = false; |
| 487 | Rec* rec = get_cache()->fHead; |
| 488 | while (rec != NULL) { |
| 489 | if (rec == id) { |
| 490 | found = true; |
| 491 | break; |
| 492 | } |
| 493 | rec = rec->fNext; |
| 494 | } |
| 495 | SkASSERT(found); |
| 496 | } |
| 497 | #endif |
| 498 | const Rec* rec = id; |
| 499 | get_cache()->remove(const_cast<Rec*>(rec)); |
| 500 | } |
| 501 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 502 | size_t SkResourceCache::GetTotalBytesUsed() { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 503 | SkAutoMutexAcquire am(gMutex); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 504 | return get_cache()->getTotalBytesUsed(); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 505 | } |
| 506 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 507 | size_t SkResourceCache::GetTotalByteLimit() { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 508 | SkAutoMutexAcquire am(gMutex); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 509 | return get_cache()->getTotalByteLimit(); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 510 | } |
| 511 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 512 | size_t SkResourceCache::SetTotalByteLimit(size_t newLimit) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 513 | SkAutoMutexAcquire am(gMutex); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 514 | return get_cache()->setTotalByteLimit(newLimit); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 515 | } |
| 516 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 517 | SkBitmap::Allocator* SkResourceCache::GetAllocator() { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 518 | SkAutoMutexAcquire am(gMutex); |
| 519 | return get_cache()->allocator(); |
| 520 | } |
| 521 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 522 | void SkResourceCache::Dump() { |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 523 | SkAutoMutexAcquire am(gMutex); |
| 524 | get_cache()->dump(); |
| 525 | } |
| 526 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 527 | size_t SkResourceCache::SetSingleAllocationByteLimit(size_t size) { |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 528 | SkAutoMutexAcquire am(gMutex); |
| 529 | return get_cache()->setSingleAllocationByteLimit(size); |
| 530 | } |
| 531 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 532 | size_t SkResourceCache::GetSingleAllocationByteLimit() { |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 533 | SkAutoMutexAcquire am(gMutex); |
| 534 | return get_cache()->getSingleAllocationByteLimit(); |
| 535 | } |
| 536 | |
reed | 56b00d9 | 2014-09-11 12:22:34 -0700 | [diff] [blame] | 537 | void SkResourceCache::PurgeAll() { |
| 538 | SkAutoMutexAcquire am(gMutex); |
| 539 | return get_cache()->purgeAll(); |
| 540 | } |
| 541 | |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 542 | const SkResourceCache::Rec* SkResourceCache::FindAndLock(const Key& key) { |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 543 | SkAutoMutexAcquire am(gMutex); |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame^] | 544 | return get_cache()->findAndLock(key); |
| 545 | } |
| 546 | |
| 547 | const SkResourceCache::Rec* SkResourceCache::AddAndLock(Rec* rec) { |
| 548 | SkAutoMutexAcquire am(gMutex); |
| 549 | return get_cache()->addAndLock(rec); |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 550 | } |
| 551 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 552 | void SkResourceCache::Add(Rec* rec) { |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 553 | SkAutoMutexAcquire am(gMutex); |
| 554 | get_cache()->add(rec); |
| 555 | } |
| 556 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 557 | /////////////////////////////////////////////////////////////////////////////// |
| 558 | |
| 559 | #include "SkGraphics.h" |
| 560 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 561 | size_t SkGraphics::GetResourceCacheTotalBytesUsed() { |
| 562 | return SkResourceCache::GetTotalBytesUsed(); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 563 | } |
| 564 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 565 | size_t SkGraphics::GetResourceCacheTotalByteLimit() { |
| 566 | return SkResourceCache::GetTotalByteLimit(); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 567 | } |
| 568 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 569 | size_t SkGraphics::SetResourceCacheTotalByteLimit(size_t newLimit) { |
| 570 | return SkResourceCache::SetTotalByteLimit(newLimit); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 571 | } |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 572 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 573 | size_t SkGraphics::GetResourceCacheSingleAllocationByteLimit() { |
| 574 | return SkResourceCache::GetSingleAllocationByteLimit(); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 575 | } |
| 576 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 577 | size_t SkGraphics::SetResourceCacheSingleAllocationByteLimit(size_t newLimit) { |
| 578 | return SkResourceCache::SetSingleAllocationByteLimit(newLimit); |
halcanary | 805ef15 | 2014-07-17 06:58:01 -0700 | [diff] [blame] | 579 | } |
| 580 | |
reed | 56b00d9 | 2014-09-11 12:22:34 -0700 | [diff] [blame] | 581 | void SkGraphics::PurgeResourceCache() { |
| 582 | return SkResourceCache::PurgeAll(); |
| 583 | } |
| 584 | |