const Patch* PatchCache::get(const AssetAtlas::Entry* entry,
const uint32_t bitmapWidth, const uint32_t bitmapHeight,
const float pixelWidth, const float pixelHeight, const Res_png_9patch* patch) {
const PatchDescription description(bitmapWidth, bitmapHeight, pixelWidth, pixelHeight, patch);
const Patch* mesh = mCache.get(description);
if (!mesh) {
Patch* newMesh = new Patch();
TextureVertex* vertices;
if (entry) {
// An atlas entry has a UV mapper
vertices = newMesh->createMesh(bitmapWidth, bitmapHeight,
pixelWidth, pixelHeight, entry->uvMapper, patch);
} else {
vertices = newMesh->createMesh(bitmapWidth, bitmapHeight,
pixelWidth, pixelHeight, patch);
}
if (vertices) {
setupMesh(newMesh, vertices);
}
#if DEBUG_PATCHES
if (g_HWUI_debug_patches) dumpFreeBlocks("Adding patch");
#endif
mCache.put(description, newMesh);
return newMesh;
}
return mesh;
}
void PatchCache::clearGarbage() {
Vector<patch_pair_t> patchesToRemove;
{ // scope for the mutex
Mutex::Autolock _l(mLock);
size_t count = mGarbage.size();
for (size_t i = 0; i < count; i++) {
remove(patchesToRemove, mGarbage[i]);
}
mGarbage.clear();
}
// TODO: We could sort patchesToRemove by offset to merge
// adjacent free blocks
for (size_t i = 0; i < patchesToRemove.size(); i++) {
const patch_pair_t& pair = patchesToRemove[i];
// Add a new free block to the list
const Patch* patch = pair.getSecond();
BufferBlock* block = new BufferBlock(patch->offset, patch->getSize());
block->next = mFreeBlocks;
mFreeBlocks = block;
mSize -= patch->getSize();
mCache.remove(*pair.getFirst());
}
#if DEBUG_PATCHES
if (patchesToRemove.size() > 0) {
dumpFreeBlocks("Removed garbage");
}
#endif
}
void PatchCache::clearGarbage() {
Vector<patch_pair_t> patchesToRemove;
{ // scope for the mutex
Mutex::Autolock _l(mLock);
size_t count = mGarbage.size();
for (size_t i = 0; i < count; i++) {
Res_png_9patch* patch = mGarbage[i];
remove(patchesToRemove, patch);
// A Res_png_9patch is actually an array of byte that's larger
// than sizeof(Res_png_9patch). It must be freed as an array.
delete[] (int8_t*) patch;
}
mGarbage.clear();
}
// TODO: We could sort patchesToRemove by offset to merge
// adjacent free blocks
for (size_t i = 0; i < patchesToRemove.size(); i++) {
const patch_pair_t& pair = patchesToRemove[i];
// Release the patch and mark the space in the free list
Patch* patch = pair.getSecond();
BufferBlock* block = new BufferBlock(patch->offset, patch->getSize());
block->next = mFreeBlocks;
mFreeBlocks = block;
mSize -= patch->getSize();
mCache.remove(*pair.getFirst());
delete patch;
}
#if DEBUG_PATCHES
if (g_HWUI_debug_patches && patchesToRemove.size() > 0) {
dumpFreeBlocks("Removed garbage");
}
#endif
}
