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 | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 9 | #include "SkResourceCache.h" |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 10 | #include "SkMipMap.h" |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 11 | #include "SkPixelRef.h" |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 12 | #include "SkRect.h" |
| 13 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 14 | /** |
| 15 | * Use this for bitmapcache and mipmapcache entries. |
| 16 | */ |
| 17 | uint64_t SkMakeResourceCacheSharedIDForBitmap(uint32_t bitmapGenID) { |
| 18 | uint64_t sharedID = SkSetFourByteTag('b', 'm', 'a', 'p'); |
| 19 | return (sharedID << 32) | bitmapGenID; |
| 20 | } |
| 21 | |
| 22 | void SkNotifyBitmapGenIDIsStale(uint32_t bitmapGenID) { |
| 23 | SkResourceCache::PostPurgeSharedID(SkMakeResourceCacheSharedIDForBitmap(bitmapGenID)); |
| 24 | } |
| 25 | |
| 26 | /////////////////////////////////////////////////////////////////////////////////////////////////// |
| 27 | |
reed | 14b6aba | 2014-08-29 10:25:26 -0700 | [diff] [blame] | 28 | SkBitmap::Allocator* SkBitmapCache::GetAllocator() { |
| 29 | return SkResourceCache::GetAllocator(); |
| 30 | } |
| 31 | |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 32 | /** |
| 33 | This function finds the bounds of the bitmap *within its pixelRef*. |
| 34 | If the bitmap lacks a pixelRef, it will return an empty rect, since |
| 35 | that doesn't make sense. This may be a useful enough function that |
| 36 | it should be somewhere else (in SkBitmap?). |
| 37 | */ |
| 38 | static SkIRect get_bounds_from_bitmap(const SkBitmap& bm) { |
| 39 | if (!(bm.pixelRef())) { |
| 40 | return SkIRect::MakeEmpty(); |
| 41 | } |
| 42 | SkIPoint origin = bm.pixelRefOrigin(); |
| 43 | return SkIRect::MakeXYWH(origin.fX, origin.fY, bm.width(), bm.height()); |
| 44 | } |
| 45 | |
fmalita | 171e5b7 | 2014-10-22 11:20:40 -0700 | [diff] [blame] | 46 | namespace { |
| 47 | static unsigned gBitmapKeyNamespaceLabel; |
| 48 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 49 | struct BitmapKey : public SkResourceCache::Key { |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 50 | public: |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 51 | BitmapKey(uint32_t genID, SkScalar sx, SkScalar sy, const SkIRect& bounds) |
| 52 | : fGenID(genID) |
| 53 | , fScaleX(sx) |
| 54 | , fScaleY(sy) |
| 55 | , fBounds(bounds) |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 56 | { |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 57 | this->init(&gBitmapKeyNamespaceLabel, SkMakeResourceCacheSharedIDForBitmap(genID), |
fmalita | 171e5b7 | 2014-10-22 11:20:40 -0700 | [diff] [blame] | 58 | sizeof(fGenID) + sizeof(fScaleX) + sizeof(fScaleY) + sizeof(fBounds)); |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 59 | } |
qiankun.miao | 045bb7f | 2014-08-25 06:08:25 -0700 | [diff] [blame] | 60 | |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 61 | uint32_t fGenID; |
| 62 | SkScalar fScaleX; |
| 63 | SkScalar fScaleY; |
| 64 | SkIRect fBounds; |
| 65 | }; |
| 66 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 67 | struct BitmapRec : public SkResourceCache::Rec { |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 68 | BitmapRec(uint32_t genID, SkScalar scaleX, SkScalar scaleY, const SkIRect& bounds, |
| 69 | const SkBitmap& result) |
| 70 | : fKey(genID, scaleX, scaleY, bounds) |
| 71 | , fBitmap(result) |
| 72 | {} |
| 73 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 74 | const Key& getKey() const override { return fKey; } |
| 75 | size_t bytesUsed() const override { return sizeof(fKey) + fBitmap.getSize(); } |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 76 | |
reed | 216b643 | 2015-08-19 12:25:40 -0700 | [diff] [blame^] | 77 | const char* getCategory() const override { return "bitmap"; } |
| 78 | SkDiscardableMemory* diagnostic_only_getDiscardable() const override { |
| 79 | return fBitmap.pixelRef()->diagnostic_only_getDiscardable(); |
| 80 | } |
| 81 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 82 | static bool Finder(const SkResourceCache::Rec& baseRec, void* contextBitmap) { |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 83 | const BitmapRec& rec = static_cast<const BitmapRec&>(baseRec); |
| 84 | SkBitmap* result = (SkBitmap*)contextBitmap; |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 85 | |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 86 | *result = rec.fBitmap; |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 87 | result->lockPixels(); |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 88 | return SkToBool(result->getPixels()); |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 89 | } |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 90 | |
| 91 | private: |
| 92 | BitmapKey fKey; |
| 93 | SkBitmap fBitmap; |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 94 | }; |
fmalita | 171e5b7 | 2014-10-22 11:20:40 -0700 | [diff] [blame] | 95 | } // namespace |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 96 | |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 97 | #define CHECK_LOCAL(localCache, localName, globalName, ...) \ |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 98 | ((localCache) ? localCache->localName(__VA_ARGS__) : SkResourceCache::globalName(__VA_ARGS__)) |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 99 | |
| 100 | bool SkBitmapCache::Find(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY, SkBitmap* result, |
| 101 | SkResourceCache* localCache) { |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 102 | if (0 == invScaleX || 0 == invScaleY) { |
| 103 | // degenerate, and the key we use for mipmaps |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 104 | return false; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 105 | } |
| 106 | BitmapKey key(src.getGenerationID(), invScaleX, invScaleY, get_bounds_from_bitmap(src)); |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 107 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 108 | return CHECK_LOCAL(localCache, find, Find, key, BitmapRec::Finder, result); |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 109 | } |
| 110 | |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 111 | void SkBitmapCache::Add(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY, |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 112 | const SkBitmap& result, SkResourceCache* localCache) { |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 113 | if (0 == invScaleX || 0 == invScaleY) { |
| 114 | // degenerate, and the key we use for mipmaps |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 115 | return; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 116 | } |
reed | 14b6aba | 2014-08-29 10:25:26 -0700 | [diff] [blame] | 117 | SkASSERT(result.isImmutable()); |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 118 | BitmapRec* rec = SkNEW_ARGS(BitmapRec, (src.getGenerationID(), invScaleX, invScaleY, |
| 119 | get_bounds_from_bitmap(src), result)); |
| 120 | CHECK_LOCAL(localCache, add, Add, rec); |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 121 | src.pixelRef()->notifyAddedToCache(); |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 122 | } |
| 123 | |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 124 | bool SkBitmapCache::Find(uint32_t genID, const SkIRect& subset, SkBitmap* result, |
| 125 | SkResourceCache* localCache) { |
piotaixr | 42b0dfe | 2014-09-03 11:33:13 -0700 | [diff] [blame] | 126 | BitmapKey key(genID, SK_Scalar1, SK_Scalar1, subset); |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 127 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 128 | return CHECK_LOCAL(localCache, find, Find, key, BitmapRec::Finder, result); |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 129 | } |
| 130 | |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 131 | bool SkBitmapCache::Add(SkPixelRef* pr, const SkIRect& subset, const SkBitmap& result, |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 132 | SkResourceCache* localCache) { |
reed | 14b6aba | 2014-08-29 10:25:26 -0700 | [diff] [blame] | 133 | SkASSERT(result.isImmutable()); |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 134 | |
piotaixr | 42b0dfe | 2014-09-03 11:33:13 -0700 | [diff] [blame] | 135 | if (subset.isEmpty() |
| 136 | || subset.top() < 0 |
| 137 | || subset.left() < 0 |
| 138 | || result.width() != subset.width() |
| 139 | || result.height() != subset.height()) { |
| 140 | return false; |
| 141 | } else { |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 142 | BitmapRec* rec = SkNEW_ARGS(BitmapRec, (pr->getGenerationID(), 1, 1, subset, result)); |
piotaixr | 42b0dfe | 2014-09-03 11:33:13 -0700 | [diff] [blame] | 143 | |
reed | 30ad530 | 2014-09-16 10:39:55 -0700 | [diff] [blame] | 144 | CHECK_LOCAL(localCache, add, Add, rec); |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 145 | pr->notifyAddedToCache(); |
piotaixr | 42b0dfe | 2014-09-03 11:33:13 -0700 | [diff] [blame] | 146 | return true; |
| 147 | } |
| 148 | } |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 149 | |
reed | 6f1216a | 2015-08-04 08:10:13 -0700 | [diff] [blame] | 150 | bool SkBitmapCache::Find(uint32_t genID, SkBitmap* result, SkResourceCache* localCache) { |
| 151 | BitmapKey key(genID, SK_Scalar1, SK_Scalar1, SkIRect::MakeEmpty()); |
| 152 | |
| 153 | return CHECK_LOCAL(localCache, find, Find, key, BitmapRec::Finder, result); |
| 154 | } |
| 155 | |
| 156 | void SkBitmapCache::Add(uint32_t genID, const SkBitmap& result, SkResourceCache* localCache) { |
| 157 | SkASSERT(result.isImmutable()); |
| 158 | |
| 159 | BitmapRec* rec = SkNEW_ARGS(BitmapRec, (genID, 1, 1, SkIRect::MakeEmpty(), result)); |
| 160 | |
| 161 | CHECK_LOCAL(localCache, add, Add, rec); |
| 162 | } |
| 163 | |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 164 | ////////////////////////////////////////////////////////////////////////////////////////// |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 165 | ////////////////////////////////////////////////////////////////////////////////////////// |
| 166 | |
| 167 | namespace { |
| 168 | static unsigned gMipMapKeyNamespaceLabel; |
| 169 | |
| 170 | struct MipMapKey : public SkResourceCache::Key { |
| 171 | public: |
| 172 | MipMapKey(uint32_t genID, const SkIRect& bounds) : fGenID(genID), fBounds(bounds) { |
| 173 | this->init(&gMipMapKeyNamespaceLabel, SkMakeResourceCacheSharedIDForBitmap(genID), |
| 174 | sizeof(fGenID) + sizeof(fBounds)); |
| 175 | } |
| 176 | |
| 177 | uint32_t fGenID; |
| 178 | SkIRect fBounds; |
| 179 | }; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 180 | |
reed | 011f39a | 2014-08-28 13:35:23 -0700 | [diff] [blame] | 181 | struct MipMapRec : public SkResourceCache::Rec { |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 182 | MipMapRec(const SkBitmap& src, const SkMipMap* result) |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 183 | : fKey(src.getGenerationID(), get_bounds_from_bitmap(src)) |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 184 | , fMipMap(result) |
| 185 | { |
| 186 | fMipMap->attachToCacheAndRef(); |
reed | 92561a0 | 2014-10-02 13:47:08 -0700 | [diff] [blame] | 187 | } |
piotaixr | 42b0dfe | 2014-09-03 11:33:13 -0700 | [diff] [blame] | 188 | |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 189 | virtual ~MipMapRec() { |
| 190 | fMipMap->detachFromCacheAndUnref(); |
| 191 | } |
reed | 37c5a81 | 2014-10-03 13:23:30 -0700 | [diff] [blame] | 192 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 193 | const Key& getKey() const override { return fKey; } |
| 194 | size_t bytesUsed() const override { return sizeof(fKey) + fMipMap->size(); } |
reed | 216b643 | 2015-08-19 12:25:40 -0700 | [diff] [blame^] | 195 | const char* getCategory() const override { return "mipmap"; } |
| 196 | SkDiscardableMemory* diagnostic_only_getDiscardable() const override { |
| 197 | return fMipMap->diagnostic_only_getDiscardable(); |
| 198 | } |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 199 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 200 | static bool Finder(const SkResourceCache::Rec& baseRec, void* contextMip) { |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 201 | const MipMapRec& rec = static_cast<const MipMapRec&>(baseRec); |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 202 | const SkMipMap* mm = SkRef(rec.fMipMap); |
| 203 | // the call to ref() above triggers a "lock" in the case of discardable memory, |
| 204 | // which means we can now check for null (in case the lock failed). |
| 205 | if (NULL == mm->data()) { |
| 206 | mm->unref(); // balance our call to ref() |
| 207 | return false; |
| 208 | } |
| 209 | // the call must call unref() when they are done. |
| 210 | *(const SkMipMap**)contextMip = mm; |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 211 | return true; |
| 212 | } |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 213 | |
| 214 | private: |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 215 | MipMapKey fKey; |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 216 | const SkMipMap* fMipMap; |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 217 | }; |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 218 | } |
reed | 595aa05 | 2014-09-15 10:15:18 -0700 | [diff] [blame] | 219 | |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 220 | const SkMipMap* SkMipMapCache::FindAndRef(const SkBitmap& src, SkResourceCache* localCache) { |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 221 | MipMapKey key(src.getGenerationID(), get_bounds_from_bitmap(src)); |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 222 | const SkMipMap* result; |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 223 | |
reed | 7eeba25 | 2015-02-24 13:54:23 -0800 | [diff] [blame] | 224 | if (!CHECK_LOCAL(localCache, find, Find, key, MipMapRec::Finder, &result)) { |
reed | c90e014 | 2014-09-15 11:39:44 -0700 | [diff] [blame] | 225 | result = NULL; |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 226 | } |
| 227 | return result; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 228 | } |
| 229 | |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 230 | static SkResourceCache::DiscardableFactory get_fact(SkResourceCache* localCache) { |
| 231 | return localCache ? localCache->GetDiscardableFactory() |
| 232 | : SkResourceCache::GetDiscardableFactory(); |
| 233 | } |
| 234 | |
| 235 | const SkMipMap* SkMipMapCache::AddAndRef(const SkBitmap& src, SkResourceCache* localCache) { |
| 236 | SkMipMap* mipmap = SkMipMap::Build(src, get_fact(localCache)); |
| 237 | if (mipmap) { |
| 238 | MipMapRec* rec = SkNEW_ARGS(MipMapRec, (src, mipmap)); |
| 239 | CHECK_LOCAL(localCache, add, Add, rec); |
reed | 83787d0 | 2015-02-25 07:17:11 -0800 | [diff] [blame] | 240 | src.pixelRef()->notifyAddedToCache(); |
reed | 680fb9e | 2014-08-26 09:08:04 -0700 | [diff] [blame] | 241 | } |
reed | 9d93c2e | 2014-10-08 05:17:12 -0700 | [diff] [blame] | 242 | return mipmap; |
reed | 0461713 | 2014-08-21 09:46:49 -0700 | [diff] [blame] | 243 | } |