Method PurgeOldTextures

Source/HLEGraphics/TextureCache.cpp:76–106

Purge any textures that haven't been used recently

// Purge any textures that haven't been used recently
void CTextureCache::PurgeOldTextures()
{
	MutexLock lock(GetDebugMutex());

	//
	//	Erase expired textures in reverse order, which should require less
	//	copying when large clumps of textures are released simultaneously.
	//
	for( s32 i = mTextures.size() - 1; i >= 0; --i )
	{
		CachedTexture * texture = mTextures[ i ];
		if ( texture->HasExpired() )
		{
			u32	ixa = MakeHashIdxA( texture->GetTextureInfo() );
			u32 ixb = MakeHashIdxB( texture->GetTextureInfo() );

			if( mpCacheHashTable[ixa] == texture )
			{
				mpCacheHashTable[ixa] = nullptr;
			}
			if( mpCacheHashTable[ixb] == texture )
			{
				mpCacheHashTable[ixb] = nullptr;
			}

			mTextures.erase( mTextures.begin() + i );

			delete texture;
		}
	}
}

void CTextureCache::DropTextures()
{