1 /*
2 * Copyright 2015 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"
9 #include "SkResourceCache.h"
10 #include "SkYUVPlanesCache.h"
11
12 #define CHECK_LOCAL(localCache, localName, globalName, ...) \
13 ((localCache) ? localCache->localName(__VA_ARGS__) : SkResourceCache::globalName(__VA_ARGS__))
14
15 namespace {
16 static unsigned gYUVPlanesKeyNamespaceLabel;
17
18 struct YUVValue {
19 SkYUVPlanesCache::Info fInfo;
20 SkCachedData* fData;
21 };
22
23 struct YUVPlanesKey : public SkResourceCache::Key {
YUVPlanesKey__anon461cc4e10111::YUVPlanesKey24 YUVPlanesKey(uint32_t genID)
25 : fGenID(genID)
26 {
27 this->init(&gYUVPlanesKeyNamespaceLabel, SkMakeResourceCacheSharedIDForBitmap(genID),
28 sizeof(genID));
29 }
30
31 uint32_t fGenID;
32 };
33
34 struct YUVPlanesRec : public SkResourceCache::Rec {
YUVPlanesRec__anon461cc4e10111::YUVPlanesRec35 YUVPlanesRec(YUVPlanesKey key, SkCachedData* data, SkYUVPlanesCache::Info* info)
36 : fKey(key)
37 {
38 fValue.fData = data;
39 fValue.fInfo = *info;
40 fValue.fData->attachToCacheAndRef();
41 }
~YUVPlanesRec__anon461cc4e10111::YUVPlanesRec42 ~YUVPlanesRec() {
43 fValue.fData->detachFromCacheAndUnref();
44 }
45
46 YUVPlanesKey fKey;
47 YUVValue fValue;
48
getKey__anon461cc4e10111::YUVPlanesRec49 const Key& getKey() const override { return fKey; }
bytesUsed__anon461cc4e10111::YUVPlanesRec50 size_t bytesUsed() const override { return sizeof(*this) + fValue.fData->size(); }
51
Visitor__anon461cc4e10111::YUVPlanesRec52 static bool Visitor(const SkResourceCache::Rec& baseRec, void* contextData) {
53 const YUVPlanesRec& rec = static_cast<const YUVPlanesRec&>(baseRec);
54 YUVValue* result = static_cast<YUVValue*>(contextData);
55
56 SkCachedData* tmpData = rec.fValue.fData;
57 tmpData->ref();
58 if (NULL == tmpData->data()) {
59 tmpData->unref();
60 return false;
61 }
62 result->fData = tmpData;
63 result->fInfo = rec.fValue.fInfo;
64 return true;
65 }
66 };
67 } // namespace
68
FindAndRef(uint32_t genID,Info * info,SkResourceCache * localCache)69 SkCachedData* SkYUVPlanesCache::FindAndRef(uint32_t genID, Info* info,
70 SkResourceCache* localCache) {
71 YUVValue result;
72 YUVPlanesKey key(genID);
73 if (!CHECK_LOCAL(localCache, find, Find, key, YUVPlanesRec::Visitor, &result)) {
74 return NULL;
75 }
76
77 *info = result.fInfo;
78 return result.fData;
79 }
80
Add(uint32_t genID,SkCachedData * data,Info * info,SkResourceCache * localCache)81 void SkYUVPlanesCache::Add(uint32_t genID, SkCachedData* data, Info* info,
82 SkResourceCache* localCache) {
83 YUVPlanesKey key(genID);
84 return CHECK_LOCAL(localCache, add, Add, SkNEW_ARGS(YUVPlanesRec, (key, data, info)));
85 }
86