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Work on Block class.

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This commit is contained in:
David Williams
2009-03-24 20:45:23 +00:00
parent 409afc3a99
commit d191902db3
7 changed files with 52 additions and 25 deletions
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12
library/source/PolyVoxCore/Utility.cpp
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@ -22,6 +22,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#include "PolyVoxCore/Utility.h"
#include <cassert>
#include <stdexcept>
namespace PolyVox
{
@ -29,9 +30,20 @@ namespace PolyVox
//If this is not the case then the output is undefined.
uint8 logBase2(uint32 uInput)
{
//Debug mode error handling
assert(uInput != 0);
assert(isPowerOf2(uInput));
//Release mode error handling
if(uInput == 0)
{
throw std::invalid_argument("Cannot compute the log of zero.");
}
if(!isPowerOf2(uInput))
{
throw std::invalid_argument("Input must be a power of two in order to compute the log.");
}
uint32 uResult = 0;
while( (uInput >> uResult) != 0)
{

2
library/source/PolyVoxUtil/VolumeChangeTracker.cpp
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@ -49,7 +49,7 @@ namespace PolyVox
m_uVolumeSideLengthInRegions = volumeData->getSideLength() / m_uRegionSideLength;
m_uRegionSideLengthPower = PolyVox::logBase2(m_uRegionSideLength);
volRegionLastModified = new Block<int32>(m_uRegionSideLengthPower);
volRegionLastModified = new Block<int32>(m_uRegionSideLength);
}
VolumeChangeTracker::~VolumeChangeTracker()