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This commit is contained in:
David Williams
2011-02-09 20:52:36 +00:00
parent 4da1f6149a
commit b1eab6c6a3
5 changed files with 89 additions and 13 deletions
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34
library/PolyVoxCore/include/Volume.inl
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@ -49,7 +49,13 @@ namespace PolyVox
template <typename VoxelType>
Volume<VoxelType>::Volume(uint16_t uWidth, uint16_t uHeight, uint16_t uDepth, uint16_t uBlockSideLength)
:m_uTimestamper(0)
,m_uBlockCacheSize(1024)
,m_uCompressions(0)
,m_uUncompressions(0)
,m_uBlockSideLength(uBlockSideLength)
{
setBlockCacheSize(m_uBlockCacheSize);
//Create a volume of the right size.
resize(uWidth, uHeight, uDepth, uBlockSideLength);
}
@ -262,6 +268,18 @@ namespace PolyVox
return setVoxelAt(v3dPos.getX(), v3dPos.getY(), v3dPos.getZ(), tValue);
}
template <typename VoxelType>
void Volume<VoxelType>::clearBlockCache(void)
{
for(uint32_t ct = 0; ct < m_pUncompressedBlocks.size(); ct++)
{
m_pUncompressedBlocks[ct]->compress();
m_uCompressions++;
}
m_pUncompressedBlocks.clear();
}
////////////////////////////////////////////////////////////////////////////////
/// Note: Calling this function will destroy all existing data in the volume.
/// \param uWidth The desired width in voxels. This must be a power of two.
@ -344,6 +362,14 @@ namespace PolyVox
m_fDiagonalLength = sqrtf(static_cast<float>(m_uWidth * m_uWidth + m_uHeight * m_uHeight + m_uDepth * m_uDepth));
}
template <typename VoxelType>
void Volume<VoxelType>::setBlockCacheSize(uint16_t uBlockCacheSize)
{
clearBlockCache();
m_uBlockCacheSize = uBlockCacheSize;
}
template <typename VoxelType>
Block<VoxelType>* Volume<VoxelType>::getUncompressedBlock(Block<VoxelType>* block) const
{
@ -354,8 +380,10 @@ namespace PolyVox
return block;
}
const uint32_t MaxUncompressedBlocks = 10;
if(m_pUncompressedBlocks.size() == MaxUncompressedBlocks)
uint32_t uUncompressedBlockIndex = 100000000;
assert(m_pUncompressedBlocks.size() <= m_uBlockCacheSize);
if(m_pUncompressedBlocks.size() == m_uBlockCacheSize)
{
int32_t leastRecentlyUsedBlockIndex = -1;
uint32_t uLeastRecentTimestamp = 1000000000000000;
@ -369,6 +397,7 @@ namespace PolyVox
}
m_pUncompressedBlocks[leastRecentlyUsedBlockIndex]->compress();
m_uCompressions++;
m_pUncompressedBlocks[leastRecentlyUsedBlockIndex] = block;
}
else
@ -377,6 +406,7 @@ namespace PolyVox
}
block->uncompress();
m_uUncompressions++;
return block;
}