diff options
Diffstat (limited to 'thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.cpp')
-rw-r--r-- | thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.cpp | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.cpp b/thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.cpp deleted file mode 100644 index 822b511633..0000000000 --- a/thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.cpp +++ /dev/null @@ -1,120 +0,0 @@ -#include "b3PrefixScanCL.h" -#include "b3FillCL.h" -#define B3_PREFIXSCAN_PROG_PATH "src/Bullet3OpenCL/ParallelPrimitives/kernels/PrefixScanKernels.cl" - -#include "b3LauncherCL.h" -#include "Bullet3OpenCL/Initialize/b3OpenCLUtils.h" -#include "kernels/PrefixScanKernelsCL.h" - -b3PrefixScanCL::b3PrefixScanCL(cl_context ctx, cl_device_id device, cl_command_queue queue, int size) - : m_commandQueue(queue) -{ - const char* scanKernelSource = prefixScanKernelsCL; - cl_int pErrNum; - char* additionalMacros = 0; - - m_workBuffer = new b3OpenCLArray<unsigned int>(ctx, queue, size); - cl_program scanProg = b3OpenCLUtils::compileCLProgramFromString(ctx, device, scanKernelSource, &pErrNum, additionalMacros, B3_PREFIXSCAN_PROG_PATH); - b3Assert(scanProg); - - m_localScanKernel = b3OpenCLUtils::compileCLKernelFromString(ctx, device, scanKernelSource, "LocalScanKernel", &pErrNum, scanProg, additionalMacros); - b3Assert(m_localScanKernel); - m_blockSumKernel = b3OpenCLUtils::compileCLKernelFromString(ctx, device, scanKernelSource, "TopLevelScanKernel", &pErrNum, scanProg, additionalMacros); - b3Assert(m_blockSumKernel); - m_propagationKernel = b3OpenCLUtils::compileCLKernelFromString(ctx, device, scanKernelSource, "AddOffsetKernel", &pErrNum, scanProg, additionalMacros); - b3Assert(m_propagationKernel); -} - -b3PrefixScanCL::~b3PrefixScanCL() -{ - delete m_workBuffer; - clReleaseKernel(m_localScanKernel); - clReleaseKernel(m_blockSumKernel); - clReleaseKernel(m_propagationKernel); -} - -template <class T> -T b3NextPowerOf2(T n) -{ - n -= 1; - for (int i = 0; i < sizeof(T) * 8; i++) - n = n | (n >> i); - return n + 1; -} - -void b3PrefixScanCL::execute(b3OpenCLArray<unsigned int>& src, b3OpenCLArray<unsigned int>& dst, int n, unsigned int* sum) -{ - // b3Assert( data->m_option == EXCLUSIVE ); - const unsigned int numBlocks = (const unsigned int)((n + BLOCK_SIZE * 2 - 1) / (BLOCK_SIZE * 2)); - - dst.resize(src.size()); - m_workBuffer->resize(src.size()); - - b3Int4 constBuffer; - constBuffer.x = n; - constBuffer.y = numBlocks; - constBuffer.z = (int)b3NextPowerOf2(numBlocks); - - b3OpenCLArray<unsigned int>* srcNative = &src; - b3OpenCLArray<unsigned int>* dstNative = &dst; - - { - b3BufferInfoCL bInfo[] = {b3BufferInfoCL(dstNative->getBufferCL()), b3BufferInfoCL(srcNative->getBufferCL()), b3BufferInfoCL(m_workBuffer->getBufferCL())}; - - b3LauncherCL launcher(m_commandQueue, m_localScanKernel, "m_localScanKernel"); - launcher.setBuffers(bInfo, sizeof(bInfo) / sizeof(b3BufferInfoCL)); - launcher.setConst(constBuffer); - launcher.launch1D(numBlocks * BLOCK_SIZE, BLOCK_SIZE); - } - - { - b3BufferInfoCL bInfo[] = {b3BufferInfoCL(m_workBuffer->getBufferCL())}; - - b3LauncherCL launcher(m_commandQueue, m_blockSumKernel, "m_blockSumKernel"); - launcher.setBuffers(bInfo, sizeof(bInfo) / sizeof(b3BufferInfoCL)); - launcher.setConst(constBuffer); - launcher.launch1D(BLOCK_SIZE, BLOCK_SIZE); - } - - if (numBlocks > 1) - { - b3BufferInfoCL bInfo[] = {b3BufferInfoCL(dstNative->getBufferCL()), b3BufferInfoCL(m_workBuffer->getBufferCL())}; - b3LauncherCL launcher(m_commandQueue, m_propagationKernel, "m_propagationKernel"); - launcher.setBuffers(bInfo, sizeof(bInfo) / sizeof(b3BufferInfoCL)); - launcher.setConst(constBuffer); - launcher.launch1D((numBlocks - 1) * BLOCK_SIZE, BLOCK_SIZE); - } - - if (sum) - { - clFinish(m_commandQueue); - dstNative->copyToHostPointer(sum, 1, n - 1, true); - } -} - -void b3PrefixScanCL::executeHost(b3AlignedObjectArray<unsigned int>& src, b3AlignedObjectArray<unsigned int>& dst, int n, unsigned int* sum) -{ - unsigned int s = 0; - //if( data->m_option == EXCLUSIVE ) - { - for (int i = 0; i < n; i++) - { - dst[i] = s; - s += src[i]; - } - } - /*else - { - for(int i=0; i<n; i++) - { - s += hSrc[i]; - hDst[i] = s; - } - } - */ - - if (sum) - { - *sum = dst[n - 1]; - } -}
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