flewkey/cuberite-2a
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Made FAST_FLOOR_DIV work correctly, replaced all floorf() divisions with it.

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Still not perfect - chunk and region calculations can be made into a single CPU instruction - SAR - but not all compilers are known to support that (">>" operator on signed datatypes needs to perform arithmetic shift, C/C++ standard makes it implementation-specific; MSVC and GCC do what we need, LLVM unknown)

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1224 0a769ca7-a7f5-676a-18bf-c427514a06d6
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madmaxoft@gmail.com
2013-02-27 10:01:20 +00:00
parent 24d3d5dac4
commit 71cd0199fd
5 changed files with 14 additions and 12 deletions
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5
source/WorldStorage/WSSAnvil.cpp
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@@ -388,9 +388,10 @@ bool cWSSAnvil::SetChunkData(const cChunkCoords & a_Chunk, const AString & a_Dat
cWSSAnvil::cMCAFile * cWSSAnvil::LoadMCAFile(const cChunkCoords & a_Chunk)
{
// ASSUME m_CS is locked
ASSERT(m_CS.IsLocked());
const int RegionX = (int)(floorf((float)a_Chunk.m_ChunkX / 32.0f));
const int RegionZ = (int)(floorf((float)a_Chunk.m_ChunkZ / 32.0f));
const int RegionX = FAST_FLOOR_DIV(a_Chunk.m_ChunkX, 32);
const int RegionZ = FAST_FLOOR_DIV(a_Chunk.m_ChunkZ, 32);
// Is it already cached?
for (cMCAFiles::iterator itr = m_Files.begin(); itr != m_Files.end(); ++itr)