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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmapCache.h"
#include "SkResourceCache.h"
#include "SkYUVPlanesCache.h"
#define CHECK_LOCAL(localCache, localName, globalName, ...) \
((localCache) ? localCache->localName(__VA_ARGS__) : SkResourceCache::globalName(__VA_ARGS__))
namespace {
static unsigned gYUVPlanesKeyNamespaceLabel;
struct YUVValue {
SkYUVPlanesCache::Info fInfo;
SkCachedData* fData;
};
struct YUVPlanesKey : public SkResourceCache::Key {
YUVPlanesKey(uint32_t genID)
: fGenID(genID)
{
this->init(&gYUVPlanesKeyNamespaceLabel, SkMakeResourceCacheSharedIDForBitmap(genID),
sizeof(genID));
}
uint32_t fGenID;
};
struct YUVPlanesRec : public SkResourceCache::Rec {
YUVPlanesRec(YUVPlanesKey key, SkCachedData* data, SkYUVPlanesCache::Info* info)
: fKey(key)
{
fValue.fData = data;
fValue.fInfo = *info;
fValue.fData->attachToCacheAndRef();
}
~YUVPlanesRec() {
fValue.fData->detachFromCacheAndUnref();
}
YUVPlanesKey fKey;
YUVValue fValue;
const Key& getKey() const override { return fKey; }
size_t bytesUsed() const override { return sizeof(*this) + fValue.fData->size(); }
const char* getCategory() const override { return "yuv-planes"; }
SkDiscardableMemory* diagnostic_only_getDiscardable() const override {
return fValue.fData->diagnostic_only_getDiscardable();
}
static bool Visitor(const SkResourceCache::Rec& baseRec, void* contextData) {
const YUVPlanesRec& rec = static_cast<const YUVPlanesRec&>(baseRec);
YUVValue* result = static_cast<YUVValue*>(contextData);
SkCachedData* tmpData = rec.fValue.fData;
tmpData->ref();
if (nullptr == tmpData->data()) {
tmpData->unref();
return false;
}
result->fData = tmpData;
result->fInfo = rec.fValue.fInfo;
return true;
}
};
} // namespace
SkCachedData* SkYUVPlanesCache::FindAndRef(uint32_t genID, Info* info,
SkResourceCache* localCache) {
YUVValue result;
YUVPlanesKey key(genID);
if (!CHECK_LOCAL(localCache, find, Find, key, YUVPlanesRec::Visitor, &result)) {
return nullptr;
}
*info = result.fInfo;
return result.fData;
}
void SkYUVPlanesCache::Add(uint32_t genID, SkCachedData* data, Info* info,
SkResourceCache* localCache) {
YUVPlanesKey key(genID);
return CHECK_LOCAL(localCache, add, Add, new YUVPlanesRec(key, data, info));
}
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