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 | |
| 8 | #include "SkScaledImageCache.h" |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 9 | #include "SkMipMap.h" |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 10 | #include "SkOnce.h" |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 11 | #include "SkPixelRef.h" |
| 12 | #include "SkRect.h" |
| 13 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 14 | // This can be defined by the caller's build system |
| 15 | //#define SK_USE_DISCARDABLE_SCALEDIMAGECACHE |
| 16 | |
| 17 | #ifndef SK_DISCARDABLEMEMORY_SCALEDIMAGECACHE_COUNT_LIMIT |
| 18 | # define SK_DISCARDABLEMEMORY_SCALEDIMAGECACHE_COUNT_LIMIT 1024 |
| 19 | #endif |
| 20 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 21 | #ifndef SK_DEFAULT_IMAGE_CACHE_LIMIT |
| 22 | #define SK_DEFAULT_IMAGE_CACHE_LIMIT (2 * 1024 * 1024) |
| 23 | #endif |
| 24 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 25 | static inline SkScaledImageCache::ID* rec_to_id(SkScaledImageCache::Rec* rec) { |
| 26 | return reinterpret_cast<SkScaledImageCache::ID*>(rec); |
| 27 | } |
| 28 | |
| 29 | static inline SkScaledImageCache::Rec* id_to_rec(SkScaledImageCache::ID* id) { |
| 30 | return reinterpret_cast<SkScaledImageCache::Rec*>(id); |
| 31 | } |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 32 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 33 | // Implemented from en.wikipedia.org/wiki/MurmurHash. |
| 34 | static uint32_t compute_hash(const uint32_t data[], int count) { |
| 35 | uint32_t hash = 0; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 36 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 37 | for (int i = 0; i < count; ++i) { |
| 38 | uint32_t k = data[i]; |
| 39 | k *= 0xcc9e2d51; |
| 40 | k = (k << 15) | (k >> 17); |
| 41 | k *= 0x1b873593; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 42 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 43 | hash ^= k; |
| 44 | hash = (hash << 13) | (hash >> 19); |
| 45 | hash *= 5; |
| 46 | hash += 0xe6546b64; |
| 47 | } |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 48 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 49 | // hash ^= size; |
| 50 | hash ^= hash >> 16; |
| 51 | hash *= 0x85ebca6b; |
| 52 | hash ^= hash >> 13; |
| 53 | hash *= 0xc2b2ae35; |
| 54 | hash ^= hash >> 16; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 55 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 56 | return hash; |
| 57 | } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 58 | |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 59 | struct SkScaledImageCache::Key { |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 60 | Key(uint32_t genID, |
| 61 | SkScalar scaleX, |
| 62 | SkScalar scaleY, |
| 63 | SkIRect bounds) |
| 64 | : fGenID(genID) |
| 65 | , fScaleX(scaleX) |
| 66 | , fScaleY(scaleY) |
| 67 | , fBounds(bounds) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 68 | fHash = compute_hash(&fGenID, 7); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 69 | } |
| 70 | |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 71 | bool operator<(const Key& other) const { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 72 | const uint32_t* a = &fGenID; |
| 73 | const uint32_t* b = &other.fGenID; |
| 74 | for (int i = 0; i < 7; ++i) { |
| 75 | if (a[i] < b[i]) { |
| 76 | return true; |
| 77 | } |
| 78 | if (a[i] > b[i]) { |
| 79 | return false; |
| 80 | } |
| 81 | } |
| 82 | return false; |
| 83 | } |
| 84 | |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 85 | bool operator==(const Key& other) const { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 86 | const uint32_t* a = &fHash; |
| 87 | const uint32_t* b = &other.fHash; |
| 88 | for (int i = 0; i < 8; ++i) { |
| 89 | if (a[i] != b[i]) { |
| 90 | return false; |
| 91 | } |
| 92 | } |
| 93 | return true; |
| 94 | } |
| 95 | |
| 96 | uint32_t fHash; |
| 97 | uint32_t fGenID; |
| 98 | float fScaleX; |
| 99 | float fScaleY; |
| 100 | SkIRect fBounds; |
| 101 | }; |
| 102 | |
| 103 | struct SkScaledImageCache::Rec { |
| 104 | Rec(const Key& key, const SkBitmap& bm) : fKey(key), fBitmap(bm) { |
| 105 | fLockCount = 1; |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 106 | fMip = NULL; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 107 | } |
skia.committer@gmail.com | 5c561cb | 2013-07-25 07:01:00 +0000 | [diff] [blame] | 108 | |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 109 | Rec(const Key& key, const SkMipMap* mip) : fKey(key) { |
| 110 | fLockCount = 1; |
| 111 | fMip = mip; |
| 112 | mip->ref(); |
| 113 | } |
skia.committer@gmail.com | 5c561cb | 2013-07-25 07:01:00 +0000 | [diff] [blame] | 114 | |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 115 | ~Rec() { |
| 116 | SkSafeUnref(fMip); |
| 117 | } |
skia.committer@gmail.com | 5c561cb | 2013-07-25 07:01:00 +0000 | [diff] [blame] | 118 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 119 | size_t bytesUsed() const { |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 120 | return fMip ? fMip->getSize() : fBitmap.getSize(); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | Rec* fNext; |
| 124 | Rec* fPrev; |
| 125 | |
| 126 | // this guy wants to be 64bit aligned |
| 127 | Key fKey; |
| 128 | |
| 129 | int32_t fLockCount; |
skia.committer@gmail.com | 5c561cb | 2013-07-25 07:01:00 +0000 | [diff] [blame] | 130 | |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 131 | // we use either fBitmap or fMip, but not both |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 132 | SkBitmap fBitmap; |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 133 | const SkMipMap* fMip; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 134 | }; |
| 135 | |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 136 | #include "SkTDynamicHash.h" |
| 137 | |
reed@google.com | 5617267 | 2013-07-25 14:46:22 +0000 | [diff] [blame] | 138 | namespace { // can't use static functions w/ template parameters |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 139 | const SkScaledImageCache::Key& key_from_rec(const SkScaledImageCache::Rec& rec) { |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 140 | return rec.fKey; |
| 141 | } |
| 142 | |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 143 | uint32_t hash_from_key(const SkScaledImageCache::Key& key) { |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 144 | return key.fHash; |
| 145 | } |
| 146 | |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 147 | bool eq_rec_key(const SkScaledImageCache::Rec& rec, const SkScaledImageCache::Key& key) { |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 148 | return rec.fKey == key; |
| 149 | } |
reed@google.com | 5617267 | 2013-07-25 14:46:22 +0000 | [diff] [blame] | 150 | } |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 151 | |
| 152 | class SkScaledImageCache::Hash : public SkTDynamicHash<SkScaledImageCache::Rec, |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 153 | SkScaledImageCache::Key, |
| 154 | key_from_rec, |
| 155 | hash_from_key, |
| 156 | eq_rec_key> {}; |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 157 | |
| 158 | /////////////////////////////////////////////////////////////////////////////// |
| 159 | |
reed@google.com | b8d17fe | 2013-07-25 17:42:24 +0000 | [diff] [blame] | 160 | // experimental hash to speed things up |
reed@google.com | ea348cb | 2013-07-25 17:50:37 +0000 | [diff] [blame] | 161 | #define USE_HASH |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 162 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 163 | #if !defined(USE_HASH) |
| 164 | static inline SkScaledImageCache::Rec* find_rec_in_list( |
| 165 | SkScaledImageCache::Rec* head, const Key & key) { |
| 166 | SkScaledImageCache::Rec* rec = head; |
| 167 | while ((rec != NULL) && (rec->fKey != key)) { |
| 168 | rec = rec->fNext; |
| 169 | } |
| 170 | return rec; |
| 171 | } |
| 172 | #endif |
| 173 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 174 | void SkScaledImageCache::init() { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 175 | fHead = NULL; |
| 176 | fTail = NULL; |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 177 | #ifdef USE_HASH |
| 178 | fHash = new Hash; |
| 179 | #else |
| 180 | fHash = NULL; |
| 181 | #endif |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 182 | fBytesUsed = 0; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 183 | fCount = 0; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 184 | fAllocator = NULL; |
| 185 | |
| 186 | // One of these should be explicit set by the caller after we return. |
| 187 | fByteLimit = 0; |
| 188 | fDiscardableFactory = NULL; |
| 189 | } |
| 190 | |
| 191 | #include "SkDiscardableMemory.h" |
| 192 | |
| 193 | class SkOneShotDiscardablePixelRef : public SkPixelRef { |
| 194 | public: |
commit-bot@chromium.org | 227c246 | 2014-01-24 18:33:07 +0000 | [diff] [blame] | 195 | SK_DECLARE_INST_COUNT(SkOneShotDiscardablePixelRef) |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 196 | // Ownership of the discardablememory is transfered to the pixelref |
| 197 | SkOneShotDiscardablePixelRef(const SkImageInfo&, SkDiscardableMemory*, size_t rowBytes); |
| 198 | ~SkOneShotDiscardablePixelRef(); |
| 199 | |
| 200 | SK_DECLARE_UNFLATTENABLE_OBJECT() |
| 201 | |
| 202 | protected: |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 203 | virtual bool onNewLockPixels(LockRec*) SK_OVERRIDE; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 204 | virtual void onUnlockPixels() SK_OVERRIDE; |
| 205 | virtual size_t getAllocatedSizeInBytes() const SK_OVERRIDE; |
| 206 | |
| 207 | private: |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 208 | SkDiscardableMemory* fDM; |
| 209 | size_t fRB; |
| 210 | bool fFirstTime; |
| 211 | |
| 212 | typedef SkPixelRef INHERITED; |
| 213 | }; |
| 214 | |
| 215 | SkOneShotDiscardablePixelRef::SkOneShotDiscardablePixelRef(const SkImageInfo& info, |
| 216 | SkDiscardableMemory* dm, |
| 217 | size_t rowBytes) |
| 218 | : INHERITED(info) |
| 219 | , fDM(dm) |
| 220 | , fRB(rowBytes) |
| 221 | { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 222 | SkASSERT(dm->data()); |
| 223 | fFirstTime = true; |
| 224 | } |
| 225 | |
| 226 | SkOneShotDiscardablePixelRef::~SkOneShotDiscardablePixelRef() { |
| 227 | SkDELETE(fDM); |
| 228 | } |
| 229 | |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 230 | bool SkOneShotDiscardablePixelRef::onNewLockPixels(LockRec* rec) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 231 | if (fFirstTime) { |
| 232 | // we're already locked |
reed@google.com | c83a91f | 2013-12-13 13:41:14 +0000 | [diff] [blame] | 233 | SkASSERT(fDM->data()); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 234 | fFirstTime = false; |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 235 | goto SUCCESS; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 236 | } |
commit-bot@chromium.org | 281713e | 2013-12-12 18:08:08 +0000 | [diff] [blame] | 237 | |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 238 | // A previous call to onUnlock may have deleted our DM, so check for that |
| 239 | if (NULL == fDM) { |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 240 | return false; |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | if (!fDM->lock()) { |
| 244 | // since it failed, we delete it now, to free-up the resource |
| 245 | delete fDM; |
| 246 | fDM = NULL; |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 247 | return false; |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 248 | } |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 249 | |
| 250 | SUCCESS: |
| 251 | rec->fPixels = fDM->data(); |
| 252 | rec->fColorTable = NULL; |
| 253 | rec->fRowBytes = fRB; |
| 254 | return true; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | void SkOneShotDiscardablePixelRef::onUnlockPixels() { |
| 258 | SkASSERT(!fFirstTime); |
reed@google.com | c83a91f | 2013-12-13 13:41:14 +0000 | [diff] [blame] | 259 | fDM->unlock(); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | size_t SkOneShotDiscardablePixelRef::getAllocatedSizeInBytes() const { |
reed@google.com | d0419b1 | 2014-01-06 17:08:27 +0000 | [diff] [blame] | 263 | return this->info().getSafeSize(fRB); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | class SkScaledImageCacheDiscardableAllocator : public SkBitmap::Allocator { |
| 267 | public: |
| 268 | SkScaledImageCacheDiscardableAllocator( |
| 269 | SkScaledImageCache::DiscardableFactory factory) { |
| 270 | SkASSERT(factory); |
| 271 | fFactory = factory; |
| 272 | } |
| 273 | |
| 274 | virtual bool allocPixelRef(SkBitmap*, SkColorTable*) SK_OVERRIDE; |
skia.committer@gmail.com | cf0803b | 2013-12-10 07:02:03 +0000 | [diff] [blame] | 275 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 276 | private: |
| 277 | SkScaledImageCache::DiscardableFactory fFactory; |
| 278 | }; |
| 279 | |
| 280 | bool SkScaledImageCacheDiscardableAllocator::allocPixelRef(SkBitmap* bitmap, |
| 281 | SkColorTable* ctable) { |
| 282 | size_t size = bitmap->getSize(); |
| 283 | if (0 == size) { |
| 284 | return false; |
| 285 | } |
| 286 | |
| 287 | SkDiscardableMemory* dm = fFactory(size); |
| 288 | if (NULL == dm) { |
| 289 | return false; |
| 290 | } |
| 291 | |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame^] | 292 | // can we relax this? |
| 293 | if (kPMColor_SkColorType != bitmap->colorType()) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 294 | return false; |
| 295 | } |
| 296 | |
reed@google.com | 900ecf2 | 2014-02-20 20:55:37 +0000 | [diff] [blame^] | 297 | SkImageInfo info = bitmap->info(); |
commit-bot@chromium.org | e13af71 | 2014-01-13 20:39:14 +0000 | [diff] [blame] | 298 | bitmap->setPixelRef(SkNEW_ARGS(SkOneShotDiscardablePixelRef, |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 299 | (info, dm, bitmap->rowBytes())))->unref(); |
| 300 | bitmap->lockPixels(); |
| 301 | return bitmap->readyToDraw(); |
| 302 | } |
| 303 | |
| 304 | SkScaledImageCache::SkScaledImageCache(DiscardableFactory factory) { |
| 305 | this->init(); |
| 306 | fDiscardableFactory = factory; |
| 307 | |
| 308 | fAllocator = SkNEW_ARGS(SkScaledImageCacheDiscardableAllocator, (factory)); |
| 309 | } |
| 310 | |
| 311 | SkScaledImageCache::SkScaledImageCache(size_t byteLimit) { |
| 312 | this->init(); |
| 313 | fByteLimit = byteLimit; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | SkScaledImageCache::~SkScaledImageCache() { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 317 | SkSafeUnref(fAllocator); |
| 318 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 319 | Rec* rec = fHead; |
| 320 | while (rec) { |
| 321 | Rec* next = rec->fNext; |
| 322 | SkDELETE(rec); |
| 323 | rec = next; |
| 324 | } |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 325 | delete fHash; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 326 | } |
| 327 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 328 | //////////////////////////////////////////////////////////////////////////////// |
| 329 | |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 330 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 331 | SkScaledImageCache::Rec* SkScaledImageCache::findAndLock(uint32_t genID, |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 332 | SkScalar scaleX, |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 333 | SkScalar scaleY, |
| 334 | const SkIRect& bounds) { |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 335 | const Key key(genID, scaleX, scaleY, bounds); |
| 336 | return this->findAndLock(key); |
| 337 | } |
| 338 | |
| 339 | /** |
| 340 | This private method is the fully general record finder. All other |
| 341 | record finders should call this function or the one above. */ |
| 342 | SkScaledImageCache::Rec* SkScaledImageCache::findAndLock(const SkScaledImageCache::Key& key) { |
| 343 | if (key.fBounds.isEmpty()) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 344 | return NULL; |
| 345 | } |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 346 | #ifdef USE_HASH |
| 347 | Rec* rec = fHash->find(key); |
| 348 | #else |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 349 | Rec* rec = find_rec_in_list(fHead, key); |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 350 | #endif |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 351 | if (rec) { |
| 352 | this->moveToHead(rec); // for our LRU |
| 353 | rec->fLockCount += 1; |
| 354 | } |
| 355 | return rec; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 356 | } |
| 357 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 358 | /** |
| 359 | This function finds the bounds of the bitmap *within its pixelRef*. |
| 360 | If the bitmap lacks a pixelRef, it will return an empty rect, since |
| 361 | that doesn't make sense. This may be a useful enough function that |
| 362 | it should be somewhere else (in SkBitmap?). */ |
| 363 | static SkIRect get_bounds_from_bitmap(const SkBitmap& bm) { |
| 364 | if (!(bm.pixelRef())) { |
| 365 | return SkIRect::MakeEmpty(); |
| 366 | } |
reed@google.com | 672588b | 2014-01-08 15:42:01 +0000 | [diff] [blame] | 367 | SkIPoint origin = bm.pixelRefOrigin(); |
| 368 | return SkIRect::MakeXYWH(origin.fX, origin.fY, bm.width(), bm.height()); |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 369 | } |
| 370 | |
| 371 | |
| 372 | SkScaledImageCache::ID* SkScaledImageCache::findAndLock(uint32_t genID, |
| 373 | int32_t width, |
| 374 | int32_t height, |
| 375 | SkBitmap* bitmap) { |
| 376 | Rec* rec = this->findAndLock(genID, SK_Scalar1, SK_Scalar1, |
| 377 | SkIRect::MakeWH(width, height)); |
| 378 | if (rec) { |
| 379 | SkASSERT(NULL == rec->fMip); |
| 380 | SkASSERT(rec->fBitmap.pixelRef()); |
| 381 | *bitmap = rec->fBitmap; |
| 382 | } |
| 383 | return rec_to_id(rec); |
| 384 | } |
| 385 | |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 386 | SkScaledImageCache::ID* SkScaledImageCache::findAndLock(const SkBitmap& orig, |
| 387 | SkScalar scaleX, |
| 388 | SkScalar scaleY, |
| 389 | SkBitmap* scaled) { |
| 390 | if (0 == scaleX || 0 == scaleY) { |
| 391 | // degenerate, and the key we use for mipmaps |
| 392 | return NULL; |
| 393 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 394 | Rec* rec = this->findAndLock(orig.getGenerationID(), scaleX, |
| 395 | scaleY, get_bounds_from_bitmap(orig)); |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 396 | if (rec) { |
| 397 | SkASSERT(NULL == rec->fMip); |
| 398 | SkASSERT(rec->fBitmap.pixelRef()); |
| 399 | *scaled = rec->fBitmap; |
| 400 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 401 | return rec_to_id(rec); |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 402 | } |
| 403 | |
| 404 | SkScaledImageCache::ID* SkScaledImageCache::findAndLockMip(const SkBitmap& orig, |
| 405 | SkMipMap const ** mip) { |
skia.committer@gmail.com | b77f0f4 | 2013-10-30 07:01:56 +0000 | [diff] [blame] | 406 | Rec* rec = this->findAndLock(orig.getGenerationID(), 0, 0, |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 407 | get_bounds_from_bitmap(orig)); |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 408 | if (rec) { |
| 409 | SkASSERT(rec->fMip); |
| 410 | SkASSERT(NULL == rec->fBitmap.pixelRef()); |
| 411 | *mip = rec->fMip; |
| 412 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 413 | return rec_to_id(rec); |
| 414 | } |
| 415 | |
| 416 | |
| 417 | //////////////////////////////////////////////////////////////////////////////// |
| 418 | /** |
| 419 | This private method is the fully general record adder. All other |
| 420 | record adders should call this funtion. */ |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 421 | SkScaledImageCache::ID* SkScaledImageCache::addAndLock(SkScaledImageCache::Rec* rec) { |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 422 | SkASSERT(rec); |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 423 | // See if we already have this key (racy inserts, etc.) |
| 424 | Rec* existing = this->findAndLock(rec->fKey); |
robertphillips@google.com | 5db04df | 2013-12-18 18:48:08 +0000 | [diff] [blame] | 425 | if (NULL != existing) { |
| 426 | // Since we already have a matching entry, just delete the new one and return. |
| 427 | // Call sites cannot assume the passed in object will live past this call. |
| 428 | SkDELETE(rec); |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 429 | return rec_to_id(existing); |
| 430 | } |
| 431 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 432 | this->addToHead(rec); |
| 433 | SkASSERT(1 == rec->fLockCount); |
| 434 | #ifdef USE_HASH |
| 435 | SkASSERT(fHash); |
| 436 | fHash->add(rec); |
| 437 | #endif |
| 438 | // We may (now) be overbudget, so see if we need to purge something. |
| 439 | this->purgeAsNeeded(); |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 440 | return rec_to_id(rec); |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | SkScaledImageCache::ID* SkScaledImageCache::addAndLock(uint32_t genID, |
| 444 | int32_t width, |
| 445 | int32_t height, |
| 446 | const SkBitmap& bitmap) { |
| 447 | Key key(genID, SK_Scalar1, SK_Scalar1, SkIRect::MakeWH(width, height)); |
| 448 | Rec* rec = SkNEW_ARGS(Rec, (key, bitmap)); |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 449 | return this->addAndLock(rec); |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 450 | } |
| 451 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 452 | SkScaledImageCache::ID* SkScaledImageCache::addAndLock(const SkBitmap& orig, |
| 453 | SkScalar scaleX, |
| 454 | SkScalar scaleY, |
| 455 | const SkBitmap& scaled) { |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 456 | if (0 == scaleX || 0 == scaleY) { |
| 457 | // degenerate, and the key we use for mipmaps |
| 458 | return NULL; |
| 459 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 460 | SkIRect bounds = get_bounds_from_bitmap(orig); |
| 461 | if (bounds.isEmpty()) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 462 | return NULL; |
| 463 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 464 | Key key(orig.getGenerationID(), scaleX, scaleY, bounds); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 465 | Rec* rec = SkNEW_ARGS(Rec, (key, scaled)); |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 466 | return this->addAndLock(rec); |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 467 | } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 468 | |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 469 | SkScaledImageCache::ID* SkScaledImageCache::addAndLockMip(const SkBitmap& orig, |
| 470 | const SkMipMap* mip) { |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 471 | SkIRect bounds = get_bounds_from_bitmap(orig); |
| 472 | if (bounds.isEmpty()) { |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 473 | return NULL; |
| 474 | } |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 475 | Key key(orig.getGenerationID(), 0, 0, bounds); |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 476 | Rec* rec = SkNEW_ARGS(Rec, (key, mip)); |
rmistry@google.com | d6bab02 | 2013-12-02 13:50:38 +0000 | [diff] [blame] | 477 | return this->addAndLock(rec); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | void SkScaledImageCache::unlock(SkScaledImageCache::ID* id) { |
| 481 | SkASSERT(id); |
| 482 | |
| 483 | #ifdef SK_DEBUG |
| 484 | { |
| 485 | bool found = false; |
| 486 | Rec* rec = fHead; |
| 487 | while (rec != NULL) { |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 488 | if (rec == id_to_rec(id)) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 489 | found = true; |
| 490 | break; |
| 491 | } |
| 492 | rec = rec->fNext; |
| 493 | } |
| 494 | SkASSERT(found); |
| 495 | } |
| 496 | #endif |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 497 | Rec* rec = id_to_rec(id); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 498 | SkASSERT(rec->fLockCount > 0); |
| 499 | rec->fLockCount -= 1; |
| 500 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 501 | // we may have been over-budget, but now have released something, so check |
| 502 | // if we should purge. |
| 503 | if (0 == rec->fLockCount) { |
| 504 | this->purgeAsNeeded(); |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | void SkScaledImageCache::purgeAsNeeded() { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 509 | size_t byteLimit; |
| 510 | int countLimit; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 511 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 512 | if (fDiscardableFactory) { |
| 513 | countLimit = SK_DISCARDABLEMEMORY_SCALEDIMAGECACHE_COUNT_LIMIT; |
| 514 | byteLimit = SK_MaxU32; // no limit based on bytes |
| 515 | } else { |
| 516 | countLimit = SK_MaxS32; // no limit based on count |
| 517 | byteLimit = fByteLimit; |
| 518 | } |
| 519 | |
| 520 | size_t bytesUsed = fBytesUsed; |
| 521 | int countUsed = fCount; |
skia.committer@gmail.com | cf0803b | 2013-12-10 07:02:03 +0000 | [diff] [blame] | 522 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 523 | Rec* rec = fTail; |
| 524 | while (rec) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 525 | if (bytesUsed < byteLimit && countUsed < countLimit) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 526 | break; |
| 527 | } |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 528 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 529 | Rec* prev = rec->fPrev; |
| 530 | if (0 == rec->fLockCount) { |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 531 | size_t used = rec->bytesUsed(); |
| 532 | SkASSERT(used <= bytesUsed); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 533 | this->detach(rec); |
reed@google.com | 5d1e558 | 2013-07-25 14:36:15 +0000 | [diff] [blame] | 534 | #ifdef USE_HASH |
| 535 | fHash->remove(rec->fKey); |
| 536 | #endif |
skia.committer@gmail.com | 956b310 | 2013-07-26 07:00:58 +0000 | [diff] [blame] | 537 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 538 | SkDELETE(rec); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 539 | |
| 540 | bytesUsed -= used; |
| 541 | countUsed -= 1; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 542 | } |
| 543 | rec = prev; |
| 544 | } |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 545 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 546 | fBytesUsed = bytesUsed; |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 547 | fCount = countUsed; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | size_t SkScaledImageCache::setByteLimit(size_t newLimit) { |
| 551 | size_t prevLimit = fByteLimit; |
| 552 | fByteLimit = newLimit; |
| 553 | if (newLimit < prevLimit) { |
| 554 | this->purgeAsNeeded(); |
| 555 | } |
| 556 | return prevLimit; |
| 557 | } |
| 558 | |
| 559 | /////////////////////////////////////////////////////////////////////////////// |
| 560 | |
| 561 | void SkScaledImageCache::detach(Rec* rec) { |
| 562 | Rec* prev = rec->fPrev; |
| 563 | Rec* next = rec->fNext; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 564 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 565 | if (!prev) { |
| 566 | SkASSERT(fHead == rec); |
| 567 | fHead = next; |
| 568 | } else { |
| 569 | prev->fNext = next; |
| 570 | } |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 571 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 572 | if (!next) { |
| 573 | fTail = prev; |
| 574 | } else { |
| 575 | next->fPrev = prev; |
| 576 | } |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 577 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 578 | rec->fNext = rec->fPrev = NULL; |
| 579 | } |
| 580 | |
| 581 | void SkScaledImageCache::moveToHead(Rec* rec) { |
| 582 | if (fHead == rec) { |
| 583 | return; |
| 584 | } |
| 585 | |
| 586 | SkASSERT(fHead); |
| 587 | SkASSERT(fTail); |
| 588 | |
| 589 | this->validate(); |
| 590 | |
| 591 | this->detach(rec); |
| 592 | |
| 593 | fHead->fPrev = rec; |
| 594 | rec->fNext = fHead; |
| 595 | fHead = rec; |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 596 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 597 | this->validate(); |
| 598 | } |
| 599 | |
| 600 | void SkScaledImageCache::addToHead(Rec* rec) { |
| 601 | this->validate(); |
| 602 | |
| 603 | rec->fPrev = NULL; |
| 604 | rec->fNext = fHead; |
| 605 | if (fHead) { |
| 606 | fHead->fPrev = rec; |
| 607 | } |
| 608 | fHead = rec; |
| 609 | if (!fTail) { |
| 610 | fTail = rec; |
| 611 | } |
| 612 | fBytesUsed += rec->bytesUsed(); |
| 613 | fCount += 1; |
| 614 | |
| 615 | this->validate(); |
| 616 | } |
| 617 | |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 618 | /////////////////////////////////////////////////////////////////////////////// |
| 619 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 620 | #ifdef SK_DEBUG |
| 621 | void SkScaledImageCache::validate() const { |
| 622 | if (NULL == fHead) { |
| 623 | SkASSERT(NULL == fTail); |
| 624 | SkASSERT(0 == fBytesUsed); |
| 625 | return; |
| 626 | } |
| 627 | |
| 628 | if (fHead == fTail) { |
| 629 | SkASSERT(NULL == fHead->fPrev); |
| 630 | SkASSERT(NULL == fHead->fNext); |
| 631 | SkASSERT(fHead->bytesUsed() == fBytesUsed); |
| 632 | return; |
| 633 | } |
| 634 | |
| 635 | SkASSERT(NULL == fHead->fPrev); |
| 636 | SkASSERT(NULL != fHead->fNext); |
| 637 | SkASSERT(NULL == fTail->fNext); |
| 638 | SkASSERT(NULL != fTail->fPrev); |
| 639 | |
| 640 | size_t used = 0; |
| 641 | int count = 0; |
| 642 | const Rec* rec = fHead; |
| 643 | while (rec) { |
| 644 | count += 1; |
| 645 | used += rec->bytesUsed(); |
| 646 | SkASSERT(used <= fBytesUsed); |
| 647 | rec = rec->fNext; |
| 648 | } |
| 649 | SkASSERT(fCount == count); |
| 650 | |
| 651 | rec = fTail; |
| 652 | while (rec) { |
| 653 | SkASSERT(count > 0); |
| 654 | count -= 1; |
| 655 | SkASSERT(used >= rec->bytesUsed()); |
| 656 | used -= rec->bytesUsed(); |
| 657 | rec = rec->fPrev; |
| 658 | } |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 659 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 660 | SkASSERT(0 == count); |
| 661 | SkASSERT(0 == used); |
| 662 | } |
| 663 | #endif |
| 664 | |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 665 | void SkScaledImageCache::dump() const { |
| 666 | this->validate(); |
| 667 | |
| 668 | const Rec* rec = fHead; |
| 669 | int locked = 0; |
| 670 | while (rec) { |
| 671 | locked += rec->fLockCount > 0; |
| 672 | rec = rec->fNext; |
| 673 | } |
| 674 | |
| 675 | SkDebugf("SkScaledImageCache: count=%d bytes=%d locked=%d %s\n", |
| 676 | fCount, fBytesUsed, locked, |
| 677 | fDiscardableFactory ? "discardable" : "malloc"); |
| 678 | } |
| 679 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 680 | /////////////////////////////////////////////////////////////////////////////// |
| 681 | |
| 682 | #include "SkThread.h" |
| 683 | |
reed@google.com | be19dbe | 2013-07-24 15:06:34 +0000 | [diff] [blame] | 684 | SK_DECLARE_STATIC_MUTEX(gMutex); |
commit-bot@chromium.org | 709ca75 | 2014-01-24 22:38:39 +0000 | [diff] [blame] | 685 | static SkScaledImageCache* gScaledImageCache = NULL; |
| 686 | static void cleanup_gScaledImageCache() { SkDELETE(gScaledImageCache); } |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 687 | |
commit-bot@chromium.org | 709ca75 | 2014-01-24 22:38:39 +0000 | [diff] [blame] | 688 | static void create_cache(int) { |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 689 | #ifdef SK_USE_DISCARDABLE_SCALEDIMAGECACHE |
commit-bot@chromium.org | 709ca75 | 2014-01-24 22:38:39 +0000 | [diff] [blame] | 690 | gScaledImageCache = SkNEW_ARGS(SkScaledImageCache, (SkDiscardableMemory::Create)); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 691 | #else |
commit-bot@chromium.org | 709ca75 | 2014-01-24 22:38:39 +0000 | [diff] [blame] | 692 | gScaledImageCache = SkNEW_ARGS(SkScaledImageCache, (SK_DEFAULT_IMAGE_CACHE_LIMIT)); |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 693 | #endif |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 694 | } |
| 695 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 696 | static SkScaledImageCache* get_cache() { |
commit-bot@chromium.org | 709ca75 | 2014-01-24 22:38:39 +0000 | [diff] [blame] | 697 | SK_DECLARE_STATIC_ONCE(once); |
| 698 | SkOnce(&once, create_cache, 0, cleanup_gScaledImageCache); |
| 699 | SkASSERT(NULL != gScaledImageCache); |
| 700 | return gScaledImageCache; |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 701 | } |
| 702 | |
commit-bot@chromium.org | 7585479 | 2013-10-29 19:55:00 +0000 | [diff] [blame] | 703 | |
| 704 | SkScaledImageCache::ID* SkScaledImageCache::FindAndLock( |
| 705 | uint32_t pixelGenerationID, |
| 706 | int32_t width, |
| 707 | int32_t height, |
| 708 | SkBitmap* scaled) { |
| 709 | SkAutoMutexAcquire am(gMutex); |
| 710 | return get_cache()->findAndLock(pixelGenerationID, width, height, scaled); |
| 711 | } |
| 712 | |
| 713 | SkScaledImageCache::ID* SkScaledImageCache::AddAndLock( |
| 714 | uint32_t pixelGenerationID, |
| 715 | int32_t width, |
| 716 | int32_t height, |
| 717 | const SkBitmap& scaled) { |
| 718 | SkAutoMutexAcquire am(gMutex); |
| 719 | return get_cache()->addAndLock(pixelGenerationID, width, height, scaled); |
| 720 | } |
| 721 | |
| 722 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 723 | SkScaledImageCache::ID* SkScaledImageCache::FindAndLock(const SkBitmap& orig, |
| 724 | SkScalar scaleX, |
| 725 | SkScalar scaleY, |
| 726 | SkBitmap* scaled) { |
| 727 | SkAutoMutexAcquire am(gMutex); |
| 728 | return get_cache()->findAndLock(orig, scaleX, scaleY, scaled); |
| 729 | } |
| 730 | |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 731 | SkScaledImageCache::ID* SkScaledImageCache::FindAndLockMip(const SkBitmap& orig, |
| 732 | SkMipMap const ** mip) { |
| 733 | SkAutoMutexAcquire am(gMutex); |
| 734 | return get_cache()->findAndLockMip(orig, mip); |
| 735 | } |
| 736 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 737 | SkScaledImageCache::ID* SkScaledImageCache::AddAndLock(const SkBitmap& orig, |
| 738 | SkScalar scaleX, |
| 739 | SkScalar scaleY, |
| 740 | const SkBitmap& scaled) { |
| 741 | SkAutoMutexAcquire am(gMutex); |
| 742 | return get_cache()->addAndLock(orig, scaleX, scaleY, scaled); |
| 743 | } |
| 744 | |
reed@google.com | d94697c | 2013-07-24 14:31:33 +0000 | [diff] [blame] | 745 | SkScaledImageCache::ID* SkScaledImageCache::AddAndLockMip(const SkBitmap& orig, |
| 746 | const SkMipMap* mip) { |
| 747 | SkAutoMutexAcquire am(gMutex); |
| 748 | return get_cache()->addAndLockMip(orig, mip); |
| 749 | } |
| 750 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 751 | void SkScaledImageCache::Unlock(SkScaledImageCache::ID* id) { |
| 752 | SkAutoMutexAcquire am(gMutex); |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 753 | get_cache()->unlock(id); |
| 754 | |
| 755 | // get_cache()->dump(); |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | size_t SkScaledImageCache::GetBytesUsed() { |
| 759 | SkAutoMutexAcquire am(gMutex); |
| 760 | return get_cache()->getBytesUsed(); |
| 761 | } |
| 762 | |
| 763 | size_t SkScaledImageCache::GetByteLimit() { |
| 764 | SkAutoMutexAcquire am(gMutex); |
| 765 | return get_cache()->getByteLimit(); |
| 766 | } |
| 767 | |
| 768 | size_t SkScaledImageCache::SetByteLimit(size_t newLimit) { |
| 769 | SkAutoMutexAcquire am(gMutex); |
| 770 | return get_cache()->setByteLimit(newLimit); |
| 771 | } |
| 772 | |
reed@google.com | e4eb122 | 2013-12-09 22:29:30 +0000 | [diff] [blame] | 773 | SkBitmap::Allocator* SkScaledImageCache::GetAllocator() { |
| 774 | SkAutoMutexAcquire am(gMutex); |
| 775 | return get_cache()->allocator(); |
| 776 | } |
| 777 | |
reed@google.com | fa7fd80 | 2013-12-12 21:37:25 +0000 | [diff] [blame] | 778 | void SkScaledImageCache::Dump() { |
| 779 | SkAutoMutexAcquire am(gMutex); |
| 780 | get_cache()->dump(); |
| 781 | } |
| 782 | |
reed@google.com | 602a1d7 | 2013-07-23 19:13:54 +0000 | [diff] [blame] | 783 | /////////////////////////////////////////////////////////////////////////////// |
| 784 | |
| 785 | #include "SkGraphics.h" |
| 786 | |
| 787 | size_t SkGraphics::GetImageCacheBytesUsed() { |
| 788 | return SkScaledImageCache::GetBytesUsed(); |
| 789 | } |
| 790 | |
| 791 | size_t SkGraphics::GetImageCacheByteLimit() { |
| 792 | return SkScaledImageCache::GetByteLimit(); |
| 793 | } |
| 794 | |
| 795 | size_t SkGraphics::SetImageCacheByteLimit(size_t newLimit) { |
| 796 | return SkScaledImageCache::SetByteLimit(newLimit); |
| 797 | } |