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Added lock and unlock semantics to VolumeChangeTracker.

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This commit is contained in:
David Williams 2008-05-25 20:48:10 +00:00
parent 7a4e4556b1
commit db9287303c
2 changed files with 76 additions and 43 deletions
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48
include/VolumeChangeTracker.h
View File

@ -28,6 +28,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#include "Constants.h"
#include "PolyVoxForwardDeclarations.h"
#include "Region.h"
#include "TypeDef.h"
namespace PolyVox
@ -41,41 +42,30 @@ namespace PolyVox
~VolumeChangeTracker();
//Getters
Region getEnclosingRegion(void);
boost::uint8_t getVoxelAt(const Vector3DUint16& pos);
boost::uint8_t getVoxelAt(boost::uint16_t uX, boost::uint16_t uY, boost::uint16_t uZ);
const std::string& getTypeName(void) const;
boost::uint16_t getSideLength(void);
const BlockVolume<boost::uint8_t>* getVolumeData(void) const;
//Setters
void setVolumeData(BlockVolume<boost::uint8_t>* volumeDataToSet);
void setNormalGenerationMethod(NormalGenerationMethod method);
std::list<RegionGeometry> getChangedRegionGeometry(void);
void getChangedRegions(std::list<Region>& listToFill);
Region getEnclosingRegion(void);
boost::uint16_t getSideLength(void);
const BlockVolume<boost::uint8_t>* getVolumeData(void) const;
boost::uint8_t getVoxelAt(const Vector3DUint16& pos);
boost::uint8_t getVoxelAt(boost::uint16_t uX, boost::uint16_t uY, boost::uint16_t uZ);
void setAllUpToDateFlagsTo(bool newUpToDateValue);
LinearVolume<bool>* volSurfaceUpToDate;
public:
void markRegionChanged(boost::uint16_t firstX, boost::uint16_t firstY, boost::uint16_t firstZ, boost::uint16_t lastX, boost::uint16_t lastY, boost::uint16_t lastZ);
void setLockedVoxelAt(boost::uint16_t x, boost::uint16_t y, boost::uint16_t z, boost::uint8_t value);
void setUnlockedVoxelAt(boost::uint16_t x, boost::uint16_t y, boost::uint16_t z, boost::uint8_t value);
//Setters
void setAllRegionsUpToDate(bool newUpToDateValue);
void setLockedVoxelAt(boost::uint16_t x, boost::uint16_t y, boost::uint16_t z, boost::uint8_t value);
void setVolumeData(BlockVolume<boost::uint8_t>* volumeDataToSet);
void setVoxelAt(boost::uint16_t x, boost::uint16_t y, boost::uint16_t z, boost::uint8_t value);
//Others
void lockRegion(const Region& regToLock);
void unlockRegion(void);
//void markRegionChanged(boost::uint16_t firstX, boost::uint16_t firstY, boost::uint16_t firstZ, boost::uint16_t lastX, boost::uint16_t lastY, boost::uint16_t lastZ);
private:
BlockVolume<boost::uint8_t>* volumeData;
bool m_bIsLocked;
Region m_regLastLocked;
BlockVolume<boost::uint8_t>* volumeData;
LinearVolume<bool>* volRegionUpToDate;
};
}

71
source/VolumeChangeTracker.cpp
View File

@ -41,7 +41,8 @@ namespace PolyVox
// VolumeChangeTracker
//////////////////////////////////////////////////////////////////////////
VolumeChangeTracker::VolumeChangeTracker()
:volumeData(0)
:m_bIsLocked(false)
,volumeData(0)
{
}
@ -52,7 +53,7 @@ namespace PolyVox
void VolumeChangeTracker::setVolumeData(BlockVolume<boost::uint8_t>* volumeDataToSet)
{
volumeData = volumeDataToSet;
volSurfaceUpToDate = new LinearVolume<bool>(PolyVox::logBase2(POLYVOX_VOLUME_SIDE_LENGTH_IN_REGIONS));
volRegionUpToDate = new LinearVolume<bool>(PolyVox::logBase2(POLYVOX_VOLUME_SIDE_LENGTH_IN_REGIONS));
}
std::list<RegionGeometry> VolumeChangeTracker::getChangedRegionGeometry(void)
@ -96,7 +97,7 @@ namespace PolyVox
for(uint16_t regionX = 0; regionX < POLYVOX_VOLUME_SIDE_LENGTH_IN_REGIONS; ++regionX)
//for(uint16_t regionX = 3; regionX < 4; ++regionX)
{
if(volSurfaceUpToDate->getVoxelAt(regionX, regionY, regionZ) == false)
if(volRegionUpToDate->getVoxelAt(regionX, regionY, regionZ) == false)
{
const uint16_t firstX = regionX * POLYVOX_REGION_SIDE_LENGTH;
const uint16_t firstY = regionY * POLYVOX_REGION_SIDE_LENGTH;
@ -112,7 +113,7 @@ namespace PolyVox
}
}
void VolumeChangeTracker::setAllUpToDateFlagsTo(bool newUpToDateValue)
void VolumeChangeTracker::setAllRegionsUpToDate(bool newUpToDateValue)
{
for(uint16_t blockZ = 0; blockZ < POLYVOX_VOLUME_SIDE_LENGTH_IN_REGIONS; ++blockZ)
{
@ -120,13 +121,13 @@ namespace PolyVox
{
for(uint16_t blockX = 0; blockX < POLYVOX_VOLUME_SIDE_LENGTH_IN_REGIONS; ++blockX)
{
volSurfaceUpToDate->setVoxelAt(blockX, blockY, blockZ, newUpToDateValue);
volRegionUpToDate->setVoxelAt(blockX, blockY, blockZ, newUpToDateValue);
}
}
}
}
void VolumeChangeTracker::markRegionChanged(uint16_t firstX, uint16_t firstY, uint16_t firstZ, uint16_t lastX, uint16_t lastY, uint16_t lastZ)
/*void VolumeChangeTracker::markRegionChanged(uint16_t firstX, uint16_t firstY, uint16_t firstZ, uint16_t lastX, uint16_t lastY, uint16_t lastZ)
{
const uint16_t firstRegionX = firstX >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t firstRegionY = firstY >> POLYVOX_REGION_SIDE_LENGTH_POWER;
@ -143,11 +144,11 @@ namespace PolyVox
for(uint16_t xCt = firstRegionX; xCt <= lastRegionX; xCt++)
{
//surfaceUpToDate[xCt][yCt][zCt] = false;
volSurfaceUpToDate->setVoxelAt(xCt,yCt,zCt,false);
volRegionUpToDate->setVoxelAt(xCt,yCt,zCt,false);
}
}
}
}
}*/
uint16_t VolumeChangeTracker::getSideLength(void)
{
@ -166,9 +167,9 @@ namespace PolyVox
uint8_t VolumeChangeTracker::getVoxelAt(uint16_t uX, uint16_t uY, uint16_t uZ)
{
assert(ux < volumeData->getSideLength());
assert(uy < volumeData->getSideLength());
assert(uz < volumeData->getSideLength());
assert(uX < volumeData->getSideLength());
assert(uY < volumeData->getSideLength());
assert(uZ < volumeData->getSideLength());
VolumeIterator<boost::uint8_t> volIter(*volumeData);
volIter.setPosition(uX,uY,uZ);
@ -180,7 +181,7 @@ namespace PolyVox
return volumeData;
}
void VolumeChangeTracker::setUnlockedVoxelAt(boost::uint16_t x, boost::uint16_t y, boost::uint16_t z, boost::uint8_t value)
void VolumeChangeTracker::setVoxelAt(boost::uint16_t x, boost::uint16_t y, boost::uint16_t z, boost::uint8_t value)
{
//FIXME - rather than creating a iterator each time we should have one stored
VolumeIterator<boost::uint8_t> iterVol(*volumeData);
@ -195,7 +196,7 @@ namespace PolyVox
(z % POLYVOX_REGION_SIDE_LENGTH != 0) &&
(z % POLYVOX_REGION_SIDE_LENGTH != POLYVOX_REGION_SIDE_LENGTH-1))
{
volSurfaceUpToDate->setVoxelAt(x >> POLYVOX_REGION_SIDE_LENGTH_POWER, y >> POLYVOX_REGION_SIDE_LENGTH_POWER, z >> POLYVOX_REGION_SIDE_LENGTH_POWER, false);
volRegionUpToDate->setVoxelAt(x >> POLYVOX_REGION_SIDE_LENGTH_POWER, y >> POLYVOX_REGION_SIDE_LENGTH_POWER, z >> POLYVOX_REGION_SIDE_LENGTH_POWER, false);
}
else //Mark surrounding regions as well
{
@ -217,7 +218,7 @@ namespace PolyVox
{
for(uint16_t xCt = minRegionX; xCt <= maxRegionX; xCt++)
{
volSurfaceUpToDate->setVoxelAt(xCt,yCt,zCt,false);
volRegionUpToDate->setVoxelAt(xCt,yCt,zCt,false);
}
}
}
@ -226,9 +227,51 @@ namespace PolyVox
void VolumeChangeTracker::setLockedVoxelAt(boost::uint16_t x, boost::uint16_t y, boost::uint16_t z, boost::uint8_t value)
{
assert(m_bIsLocked);
//FIXME - rather than creating a iterator each time we should have one stored
VolumeIterator<boost::uint8_t> iterVol(*volumeData);
iterVol.setPosition(x,y,z);
iterVol.setVoxel(value);
}
void VolumeChangeTracker::lockRegion(const Region& regToLock)
{
if(m_bIsLocked)
{
throw std::logic_error("A region is already locked. Please unlock it before locking another.");
}
m_regLastLocked = regToLock;
m_bIsLocked = true;
}
void VolumeChangeTracker::unlockRegion(void)
{
if(!m_bIsLocked)
{
throw std::logic_error("No region is locked. You must lock a region before you can unlock it.");
}
const uint16_t firstRegionX = m_regLastLocked.getLowerCorner().x() >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t firstRegionY = m_regLastLocked.getLowerCorner().y() >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t firstRegionZ = m_regLastLocked.getLowerCorner().z() >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t lastRegionX = m_regLastLocked.getUpperCorner().x() >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t lastRegionY = m_regLastLocked.getUpperCorner().y() >> POLYVOX_REGION_SIDE_LENGTH_POWER;
const uint16_t lastRegionZ = m_regLastLocked.getUpperCorner().z() >> POLYVOX_REGION_SIDE_LENGTH_POWER;
for(uint16_t zCt = firstRegionZ; zCt <= lastRegionZ; zCt++)
{
for(uint16_t yCt = firstRegionY; yCt <= lastRegionY; yCt++)
{
for(uint16_t xCt = firstRegionX; xCt <= lastRegionX; xCt++)
{
volRegionUpToDate->setVoxelAt(xCt,yCt,zCt,false);
}
}
}
m_bIsLocked = false;
}
}