godot/thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3RadixSort32CL.h

85 lines
2.0 KiB
C++

#ifndef B3_RADIXSORT32_H
#define B3_RADIXSORT32_H
#include "b3OpenCLArray.h"
struct b3SortData
{
union {
unsigned int m_key;
unsigned int x;
};
union {
unsigned int m_value;
unsigned int y;
};
};
#include "b3BufferInfoCL.h"
class b3RadixSort32CL
{
b3OpenCLArray<unsigned int>* m_workBuffer1;
b3OpenCLArray<unsigned int>* m_workBuffer2;
b3OpenCLArray<b3SortData>* m_workBuffer3;
b3OpenCLArray<b3SortData>* m_workBuffer4;
b3OpenCLArray<unsigned int>* m_workBuffer3a;
b3OpenCLArray<unsigned int>* m_workBuffer4a;
cl_command_queue m_commandQueue;
cl_kernel m_streamCountSortDataKernel;
cl_kernel m_streamCountKernel;
cl_kernel m_prefixScanKernel;
cl_kernel m_sortAndScatterSortDataKernel;
cl_kernel m_sortAndScatterKernel;
bool m_deviceCPU;
class b3PrefixScanCL* m_scan;
class b3FillCL* m_fill;
public:
struct b3ConstData
{
int m_n;
int m_nWGs;
int m_startBit;
int m_nBlocksPerWG;
};
enum
{
DATA_ALIGNMENT = 256,
WG_SIZE = 64,
BLOCK_SIZE = 256,
ELEMENTS_PER_WORK_ITEM = (BLOCK_SIZE / WG_SIZE),
BITS_PER_PASS = 4,
NUM_BUCKET = (1 << BITS_PER_PASS),
// if you change this, change nPerWI in kernel as well
NUM_WGS = 20 * 6, // cypress
// NUM_WGS = 24*6, // cayman
// NUM_WGS = 32*4, // nv
};
private:
public:
b3RadixSort32CL(cl_context ctx, cl_device_id device, cl_command_queue queue, int initialCapacity = 0);
virtual ~b3RadixSort32CL();
void execute(b3OpenCLArray<unsigned int>& keysIn, b3OpenCLArray<unsigned int>& keysOut, b3OpenCLArray<unsigned int>& valuesIn,
b3OpenCLArray<unsigned int>& valuesOut, int n, int sortBits = 32);
///keys only
void execute(b3OpenCLArray<unsigned int>& keysInOut, int sortBits = 32);
void execute(b3OpenCLArray<b3SortData>& keyValuesInOut, int sortBits = 32);
void executeHost(b3OpenCLArray<b3SortData>& keyValuesInOut, int sortBits = 32);
void executeHost(b3AlignedObjectArray<b3SortData>& keyValuesInOut, int sortBits = 32);
};
#endif //B3_RADIXSORT32_H