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Massive changes to the organisation of PolyVoxCore and PolyVoxYtil.

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Also added start of logging capability.
This commit is contained in:
David Williams
2009-04-03 21:36:22 +00:00
parent dbf7257edd
commit df1bf690c9
222 changed files with 3353 additions and 186 deletions
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184
library/PolyVoxUtil/source/Serialization.cpp Normal file
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#include "Serialization.h"
#include "Volume.h"
#include "VolumeIterator.h"
#include "PolyVoxImpl/Utility.h"
using namespace std;
namespace PolyVox
{
//Note: we don't do much error handling in here - exceptions will simply be propergated up to the caller.
//FIXME - think about pointer ownership issues. Or could return volume by value if the copy constructor is shallow
Volume<uint8_t>* loadVolumeRaw(istream& stream)
{
//Read volume dimensions
uint8_t volumeWidthPower = 0;
uint8_t volumeHeightPower = 0;
uint8_t volumeDepthPower = 0;
stream.read(reinterpret_cast<char*>(&volumeWidthPower), sizeof(volumeWidthPower));
stream.read(reinterpret_cast<char*>(&volumeHeightPower), sizeof(volumeHeightPower));
stream.read(reinterpret_cast<char*>(&volumeDepthPower), sizeof(volumeDepthPower));
uint16_t volumeWidth = 0x0001 << volumeWidthPower;
uint16_t volumeHeight = 0x0001 << volumeHeightPower;
uint16_t volumeDepth = 0x0001 << volumeDepthPower;
//FIXME - need to support non cubic volumes
Volume<uint8_t>* volume = new Volume<uint8_t>(volumeWidth);
//Read data
for(uint16_t z = 0; z < volumeDepth; ++z)
{
for(uint16_t y = 0; y < volumeHeight; ++y)
{
for(uint16_t x = 0; x < volumeWidth; ++x)
{
uint8_t value = 0;
stream.read(reinterpret_cast<char*>(&value), sizeof(value));
volume->setVoxelAt(x,y,z,value);
}
}
}
return volume;
}
void saveVolumeRaw(std::ostream& stream, Volume<uint8_t>& volume)
{
//Write volume dimensions
uint16_t volumeWidth = volume.getSideLength();
uint16_t volumeHeight = volume.getSideLength();
uint16_t volumeDepth = volume.getSideLength();
uint8_t volumeWidthPower = logBase2(volumeWidth);
uint8_t volumeHeightPower = logBase2(volumeHeight);
uint8_t volumeDepthPower = logBase2(volumeDepth);
stream.write(reinterpret_cast<char*>(&volumeWidthPower), sizeof(volumeWidthPower));
stream.write(reinterpret_cast<char*>(&volumeHeightPower), sizeof(volumeHeightPower));
stream.write(reinterpret_cast<char*>(&volumeDepthPower), sizeof(volumeDepthPower));
//Write data
VolumeIterator<uint8_t> volIter(volume);
for(uint16_t z = 0; z < volumeDepth; ++z)
{
for(uint16_t y = 0; y < volumeHeight; ++y)
{
for(uint16_t x = 0; x < volumeWidth; ++x)
{
volIter.setPosition(x,y,z);
uint8_t value = volIter.getVoxel();
stream.write(reinterpret_cast<char*>(&value), sizeof(value));
}
}
}
}
//Note: we don't do much error handling in here - exceptions will simply be propergated up to the caller.
//FIXME - think about pointer ownership issues. Or could return volume by value if the copy constructor is shallow
Volume<uint8_t>* loadVolumeRle(istream& stream)
{
//Read volume dimensions
uint8_t volumeWidthPower = 0;
uint8_t volumeHeightPower = 0;
uint8_t volumeDepthPower = 0;
stream.read(reinterpret_cast<char*>(&volumeWidthPower), sizeof(volumeWidthPower));
stream.read(reinterpret_cast<char*>(&volumeHeightPower), sizeof(volumeHeightPower));
stream.read(reinterpret_cast<char*>(&volumeDepthPower), sizeof(volumeDepthPower));
uint16_t volumeWidth = 0x0001 << volumeWidthPower;
uint16_t volumeHeight = 0x0001 << volumeHeightPower;
uint16_t volumeDepth = 0x0001 << volumeDepthPower;
//FIXME - need to support non cubic volumes
Volume<uint8_t>* volume = new Volume<uint8_t>(volumeWidth);
//Read data
bool firstTime = true;
uint32_t runLength = 0;
uint8_t value = 0;
stream.read(reinterpret_cast<char*>(&value), sizeof(value));
stream.read(reinterpret_cast<char*>(&runLength), sizeof(runLength));
for(uint16_t z = 0; z < volumeDepth; ++z)
{
for(uint16_t y = 0; y < volumeHeight; ++y)
{
for(uint16_t x = 0; x < volumeWidth; ++x)
{
if(runLength != 0)
{
volume->setVoxelAt(x,y,z,value);
runLength--;
}
else
{
stream.read(reinterpret_cast<char*>(&value), sizeof(value));
stream.read(reinterpret_cast<char*>(&runLength), sizeof(runLength));
volume->setVoxelAt(x,y,z,value);
runLength--;
}
}
}
}
return volume;
}
void saveVolumeRle(std::ostream& stream, Volume<uint8_t>& volume)
{
//Write volume dimensions
uint16_t volumeWidth = volume.getSideLength();
uint16_t volumeHeight = volume.getSideLength();
uint16_t volumeDepth = volume.getSideLength();
uint8_t volumeWidthPower = logBase2(volumeWidth);
uint8_t volumeHeightPower = logBase2(volumeHeight);
uint8_t volumeDepthPower = logBase2(volumeDepth);
stream.write(reinterpret_cast<char*>(&volumeWidthPower), sizeof(volumeWidthPower));
stream.write(reinterpret_cast<char*>(&volumeHeightPower), sizeof(volumeHeightPower));
stream.write(reinterpret_cast<char*>(&volumeDepthPower), sizeof(volumeDepthPower));
//Write data
VolumeIterator<uint8_t> volIter(volume);
uint8_t current = 0;
uint32_t runLength = 0;
bool firstTime = true;
for(uint16_t z = 0; z < volumeDepth; ++z)
{
for(uint16_t y = 0; y < volumeHeight; ++y)
{
for(uint16_t x = 0; x < volumeWidth; ++x)
{
volIter.setPosition(x,y,z);
uint8_t value = volIter.getVoxel();
if(firstTime)
{
current = value;
runLength = 1;
firstTime = false;
}
else
{
if(value == current)
{
runLength++;
}
else
{
stream.write(reinterpret_cast<char*>(&current), sizeof(current));
stream.write(reinterpret_cast<char*>(&runLength), sizeof(runLength));
current = value;
runLength = 1;
}
}
}
}
}
stream.write(reinterpret_cast<char*>(&current), sizeof(current));
stream.write(reinterpret_cast<char*>(&runLength), sizeof(runLength));
}
}