GrTextureStripAtlas* GrTextureStripAtlas::GetAtlas(const GrTextureStripAtlas::Desc& desc) {
static SkTDArray<AtlasEntry> gAtlasEntries;
static GrTHashTable<AtlasEntry, AtlasHashKey, 8> gAtlasCache;
AtlasHashKey key;
key.setKeyData(desc.asKey());
AtlasEntry* entry = gAtlasCache.find(key);
if (NULL != entry) {
return entry->fAtlas;
} else {
entry = gAtlasEntries.push();
entry->fAtlas = SkNEW_ARGS(GrTextureStripAtlas, (desc));
entry->fKey = key;
gAtlasCache.insert(key, entry);
return entry->fAtlas;
}
}
GrGLProgram::CachedData* getProgramData(const GrGLProgram& desc,
GrCustomStage** stages) {
Entry newEntry;
newEntry.fKey.setKeyData(desc.keyData());
Entry* entry = fHashCache.find(newEntry.fKey);
if (NULL == entry) {
if (!desc.genProgram(fGL, stages, &newEntry.fProgramData)) {
return NULL;
}
if (fCount < kMaxEntries) {
entry = fEntries + fCount;
++fCount;
} else {
GrAssert(kMaxEntries == fCount);
entry = fEntries;
for (int i = 1; i < kMaxEntries; ++i) {
if (fEntries[i].fLRUStamp < entry->fLRUStamp) {
entry = fEntries + i;
}
}
fHashCache.remove(entry->fKey, entry);
GrGpuGLShaders::DeleteProgram(fGL.interface(),
&entry->fProgramData);
}
entry->copyAndTakeOwnership(newEntry);
fHashCache.insert(entry->fKey, entry);
}
entry->fLRUStamp = fCurrLRUStamp;
if (GR_UINT32_MAX == fCurrLRUStamp) {
// wrap around! just trash our LRU, one time hit.
for (int i = 0; i < fCount; ++i) {
fEntries[i].fLRUStamp = 0;
}
}
++fCurrLRUStamp;
return &entry->fProgramData;
}
GrGLProgram::CachedData* getProgramData(const GrGLProgram& desc,
const GrDrawTarget* target) {
ProgramHashKey key;
while (key.doPass()) {
desc.buildKey(key);
}
Entry* entry = fHashCache.find(key);
if (NULL == entry) {
if (fCount < kMaxEntries) {
entry = fEntries + fCount;
++fCount;
} else {
GrAssert(kMaxEntries == fCount);
entry = fEntries;
for (int i = 1; i < kMaxEntries; ++i) {
if (fEntries[i].fLRUStamp < entry->fLRUStamp) {
entry = fEntries + i;
}
}
fHashCache.remove(entry->fKey, entry);
GrGpuGLShaders::DeleteProgram(&entry->fProgramData);
}
entry->fKey.copyAndTakeOwnership(key);
desc.genProgram(&entry->fProgramData, target);
fHashCache.insert(entry->fKey, entry);
}
entry->fLRUStamp = fCurrLRUStamp;
if (GR_UINT32_MAX == fCurrLRUStamp) {
// wrap around! just trash our LRU, one time hit.
for (int i = 0; i < fCount; ++i) {
fEntries[i].fLRUStamp = 0;
}
}
++fCurrLRUStamp;
return &entry->fProgramData;
}
