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Initial source commit
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mfeemster
2014-07-08 00:11:14 -07:00
parent 1493c22925
commit ef56c16b2b
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Source/EmberCL/DEOpenCLKernelCreator.h Normal file
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#pragma once
#include "EmberCLPch.h"
#include "EmberCLStructs.h"
#include "EmberCLFunctions.h"
/// <summary>
/// DEOpenCLKernelCreator class.
/// </summary>
namespace EmberCLns
{
/// <summary>
/// Kernel creator for density filtering.
/// This implements both basic log scale filtering
/// as well as the full flam3 density estimation filtering
/// in OpenCL.
/// Several conditionals are present in the CPU version. They
/// are stripped out of the kernels and instead a separate kernel
/// is created for every possible case.
/// If the filter width is 9 or less, then the entire process can be
/// done in shared memory which is very fast.
/// However, if the filter width is greater than 9, shared memory is not
/// used and all filtering is done directly with main global VRAM. This
/// ends up being not much faster than doing it on the CPU.
/// String members are kept for the program source and entry points
/// for each version of the program.
/// Template argument expected to be float or double.
/// </summary>
template <typename T>
class EMBERCL_API DEOpenCLKernelCreator
{
public:
DEOpenCLKernelCreator();
DEOpenCLKernelCreator(bool nVidia);
//Accessors.
string LogScaleSumDEKernel();
string LogScaleSumDEEntryPoint();
string LogScaleAssignDEKernel();
string LogScaleAssignDEEntryPoint();
string GaussianDEKernel(unsigned int ss, unsigned int filterWidth);
string GaussianDEEntryPoint(unsigned int ss, unsigned int filterWidth);
//Miscellaneous static functions.
static unsigned int MaxDEFilterSize();
static T SolveMaxDERad(unsigned int maxBoxSize, T desiredFilterSize, T ss);
static unsigned int SolveMaxBoxSize(unsigned int localMem);
private:
//Kernel creators.
string CreateLogScaleSumDEKernelString();
string CreateLogScaleAssignDEKernelString();
string CreateGaussianDEKernel(unsigned int ss);
string CreateGaussianDEKernelNoLocalCache(unsigned int ss);
string m_LogScaleSumDEKernel;
string m_LogScaleSumDEEntryPoint;
string m_LogScaleAssignDEKernel;
string m_LogScaleAssignDEEntryPoint;
string m_GaussianDEWithoutSsKernel;
string m_GaussianDEWithoutSsEntryPoint;
string m_GaussianDESsWithScfKernel;
string m_GaussianDESsWithScfEntryPoint;
string m_GaussianDESsWithoutScfKernel;
string m_GaussianDESsWithoutScfEntryPoint;
string m_GaussianDEWithoutSsNoCacheKernel;
string m_GaussianDEWithoutSsNoCacheEntryPoint;
string m_GaussianDESsWithScfNoCacheKernel;
string m_GaussianDESsWithScfNoCacheEntryPoint;
string m_GaussianDESsWithoutScfNoCacheKernel;
string m_GaussianDESsWithoutScfNoCacheEntryPoint;
bool m_NVidia;
};
template EMBERCL_API class DEOpenCLKernelCreator<float>;
#ifdef DO_DOUBLE
template EMBERCL_API class DEOpenCLKernelCreator<double>;
#endif
}