void TilesManager::deallocateTexturesVector(unsigned long long sparedDrawCount,
WTF::Vector<BaseTileTexture*>& textures)
{
const unsigned int max = textures.size();
int dealloc = 0;
for (unsigned int i = 0; i < max; i++) {
TextureOwner* owner = textures[i]->owner();
if (!owner || owner->drawCount() < sparedDrawCount) {
textures[i]->discardGLTexture();
dealloc++;
}
}
XLOG("Deallocated %d gl textures (out of %d base tiles and %d layer tiles)",
dealloc, max, maxLayer);
}
void TilesManager::deallocateTextures(bool allTextures)
{
const unsigned int max = m_textures.size();
unsigned long long sparedDrawCount = ~0; // by default, spare no textures
if (!allTextures) {
// if we're not deallocating all textures, spare those with max drawcount
sparedDrawCount = 0;
for (unsigned int i = 0; i < max; i++) {
TextureOwner* owner = m_textures[i]->owner();
if (owner)
sparedDrawCount = std::max(sparedDrawCount, owner->drawCount());
}
}
deallocateTexturesVector(sparedDrawCount, m_textures);
deallocateTexturesVector(sparedDrawCount, m_tilesTextures);
}
void TilesManager::discardTexturesVector(unsigned long long sparedDrawCount,
WTF::Vector<TileTexture*>& textures,
bool deallocateGLTextures)
{
const unsigned int max = textures.size();
int dealloc = 0;
WTF::Vector<int> discardedIndex;
for (unsigned int i = 0; i < max; i++) {
TextureOwner* owner = textures[i]->owner();
if (!owner || owner->drawCount() < sparedDrawCount) {
if (deallocateGLTextures) {
// deallocate textures' gl memory
textures[i]->discardGLTexture();
discardedIndex.append(i);
} else if (owner) {
// simply detach textures from owner
static_cast<Tile*>(owner)->discardTextures();
}
dealloc++;
}
}
bool base = textures == m_textures;
// Clean up the vector of TileTextures and reset the max texture count.
if (discardedIndex.size()) {
android::Mutex::Autolock lock(m_texturesLock);
for (int i = discardedIndex.size() - 1; i >= 0; i--)
textures.remove(discardedIndex[i]);
int remainedTextureNumber = textures.size();
int* countPtr = base ? &m_currentTextureCount : &m_currentLayerTextureCount;
if (remainedTextureNumber < *countPtr) {
ALOGV("reset currentTextureCount for %s tiles from %d to %d",
base ? "base" : "layer", *countPtr, remainedTextureNumber);
*countPtr = remainedTextureNumber;
}
}
ALOGV("Discarded %d %s textures (out of %d %s tiles)",
dealloc, (deallocateGLTextures ? "gl" : ""),
max, base ? "base" : "layer");
}