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refactored and extended ocl::exp and ocl::log

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pull/1503/head
Ilya Lavrenov 11 years ago
parent 0730963576
commit 799afab23b
3 changed files with 105 additions and 69 deletions
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  1. 41
      modules/ocl/src/arithm.cpp
  2. 66
      modules/ocl/src/opencl/arithm_exp.cl
  3. 63
      modules/ocl/src/opencl/arithm_log.cl

41
modules/ocl/src/arithm.cpp
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@ -817,39 +817,44 @@ void cv::ocl::LUT(const oclMat &src, const oclMat &lut, oclMat &dst)
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////// exp log /////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
static void arithmetic_exp_log_run(const oclMat &src, oclMat &dst, string kernelName, const char **kernelString)
{
dst.create(src.size(), src.type());
CV_Assert(src.cols == dst.cols &&
src.rows == dst.rows );
CV_Assert(src.type() == dst.type());
CV_Assert( src.type() == CV_32F || src.type() == CV_64F);
Context *clCxt = src.clCxt;
if(!clCxt->supportsFeature(Context::CL_DOUBLE) && src.type() == CV_64F)
if (!clCxt->supportsFeature(Context::CL_DOUBLE) && src.depth() == CV_64F)
{
CV_Error(CV_GpuNotSupported, "Selected device don't support double\r\n");
CV_Error(CV_GpuNotSupported, "Selected device doesn't support double\r\n");
return;
}
//int channels = dst.oclchannels();
int depth = dst.depth();
CV_Assert( src.depth() == CV_32F || src.depth() == CV_64F);
dst.create(src.size(), src.type());
int ddepth = dst.depth();
int cols1 = src.cols * src.oclchannels();
int srcoffset1 = src.offset / src.elemSize1(), dstoffset1 = dst.offset / dst.elemSize1();
int srcstep1 = src.step1(), dststep1 = dst.step1();
size_t localThreads[3] = { 64, 4, 1 };
size_t globalThreads[3] = { dst.cols, dst.rows, 1 };
std::string buildOptions = format("-D srcT=%s",
ddepth == CV_32F ? "float" : "double");
vector<pair<size_t , const void *> > args;
args.push_back( make_pair( sizeof(cl_int), (void *)&src.rows ));
args.push_back( make_pair( sizeof(cl_int), (void *)&src.cols ));
args.push_back( make_pair( sizeof(cl_int), (void *)&src.step ));
args.push_back( make_pair( sizeof(cl_int), (void *)&dst.step ));
args.push_back( make_pair( sizeof(cl_int), (void *)&src.offset ));
args.push_back( make_pair( sizeof(cl_int), (void *)&dst.offset ));
args.push_back( make_pair( sizeof(cl_mem), (void *)&src.data ));
args.push_back( make_pair( sizeof(cl_mem), (void *)&dst.data ));
args.push_back( make_pair( sizeof(cl_int), (void *)&cols1 ));
args.push_back( make_pair( sizeof(cl_int), (void *)&src.rows ));
args.push_back( make_pair( sizeof(cl_int), (void *)&srcoffset1 ));
args.push_back( make_pair( sizeof(cl_int), (void *)&dstoffset1 ));
args.push_back( make_pair( sizeof(cl_int), (void *)&srcstep1 ));
args.push_back( make_pair( sizeof(cl_int), (void *)&dststep1 ));
openCLExecuteKernel(clCxt, kernelString, kernelName, globalThreads, localThreads, args, -1, depth);
openCLExecuteKernel(clCxt, kernelString, kernelName, globalThreads, localThreads,
args, src.oclchannels(), -1, buildOptions.c_str());
}
void cv::ocl::exp(const oclMat &src, oclMat &dst)
{
arithmetic_exp_log_run(src, dst, "arithm_exp", &arithm_exp);

66
modules/ocl/src/opencl/arithm_exp.cl
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@ -42,52 +42,70 @@
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#if defined (DOUBLE_SUPPORT)
#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64:enable
#elif defined (cl_amd_fp64)
#pragma OPENCL EXTENSION cl_amd_fp64:enable
#endif
#endif
//////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////EXP//////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////
__kernel void arithm_exp_D5(int rows, int cols, int srcStep, int dstStep, int srcOffset, int dstOffset, __global float *src, __global float *dst)
__kernel void arithm_exp_C1(__global srcT *src, __global srcT *dst,
int cols1, int rows,
int srcOffset1, int dstOffset1,
int srcStep1, int dstStep1)
{
int x = get_global_id(0);
int y = get_global_id(1);
if(x < cols && y < rows)
if(x < cols1 && y < rows)
{
x = x << 2;
int srcIdx = mad24( y, srcStep, x + srcOffset);
int dstIdx = mad24( y, dstStep, x + dstOffset);
int srcIdx = mad24(y, srcStep1, x + srcOffset1);
int dstIdx = mad24(y, dstStep1, x + dstOffset1);
float src_data = *((__global float *)((__global char *)src + srcIdx));
float dst_data = exp(src_data);
dst[dstIdx] = exp(src[srcIdx]);
}
}
__kernel void arithm_exp_C2(__global srcT *src, __global srcT *dst,
int cols1, int rows,
int srcOffset1, int dstOffset1,
int srcStep1, int dstStep1)
{
int x1 = get_global_id(0) << 1;
int y = get_global_id(1);
*((__global float *)((__global char *)dst + dstIdx)) = dst_data;
if(x1 < cols1 && y < rows)
{
int srcIdx = mad24(y, srcStep1, x1 + srcOffset1);
int dstIdx = mad24(y, dstStep1, x1 + dstOffset1);
dst[dstIdx] = exp(src[srcIdx]);
dst[dstIdx + 1] = x1 + 1 < cols1 ? exp(src[srcIdx + 1]) : dst[dstIdx + 1];
}
}
#if defined (DOUBLE_SUPPORT)
__kernel void arithm_exp_D6(int rows, int cols, int srcStep, int dstStep, int srcOffset, int dstOffset, __global double *src, __global double *dst)
__kernel void arithm_exp_C4(__global srcT *src, __global srcT *dst,
int cols1, int rows,
int srcOffset1, int dstOffset1,
int srcStep1, int dstStep1)
{
int x = get_global_id(0);
int x1 = get_global_id(0) << 2;
int y = get_global_id(1);
if(x < cols && y < rows )
{
x = x << 3;
int srcIdx = mad24( y, srcStep, x + srcOffset);
int dstIdx = mad24( y, dstStep, x + dstOffset);
double src_data = *((__global double *)((__global char *)src + srcIdx));
double dst_data = exp(src_data);
if(x1 < cols1 && y < rows)
{
int srcIdx = mad24(y, srcStep1, x1 + srcOffset1);
int dstIdx = mad24(y, dstStep1, x1 + dstOffset1);
*((__global double *)((__global char *)dst + dstIdx )) = dst_data;
// dst[dstIdx] = exp(src[srcIdx]);
dst[dstIdx] = exp(src[srcIdx]);
dst[dstIdx + 1] = x1 + 1 < cols1 ? exp(src[srcIdx + 1]) : dst[dstIdx + 1];
dst[dstIdx + 2] = x1 + 2 < cols1 ? exp(src[srcIdx + 2]) : dst[dstIdx + 2];
dst[dstIdx + 3] = x1 + 3 < cols1 ? exp(src[srcIdx + 3]) : dst[dstIdx + 3];
}
}
#endif

63
modules/ocl/src/opencl/arithm_log.cl
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@ -1,4 +1,3 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
@ -43,52 +42,66 @@
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#if defined (DOUBLE_SUPPORT)
#pragma OPENCL EXTENSION cl_khr_fp64:enable
#endif
#define INF_FLOAT -88.029694
#define INF_DOUBLE -709.0895657128241
//////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////LOG/////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////
__kernel void arithm_log_D5(int rows, int cols, int srcStep, int dstStep, int srcOffset, int dstOffset, __global float *src, __global float *dst)
__kernel void arithm_log_C1(__global srcT *src, __global srcT *dst,
int cols1, int rows,
int srcOffset1, int dstOffset1,
int srcStep1, int dstStep1)
{
int x = get_global_id(0);
int y = get_global_id(1);
if(x < cols && y < rows )
if(x < cols1 && y < rows)
{
x = x << 2;
int srcIdx = mad24( y, srcStep, x + srcOffset);
int dstIdx = mad24( y, dstStep, x + dstOffset);
int srcIdx = mad24(y, srcStep1, x + srcOffset1);
int dstIdx = mad24(y, dstStep1, x + dstOffset1);
float src_data = *((__global float *)((__global char *)src + srcIdx));
float dst_data = (src_data == 0) ? INF_FLOAT : log(fabs(src_data));
*((__global float *)((__global char *)dst + dstIdx)) = dst_data;
dst[dstIdx] = log(src[srcIdx]);
}
}
#if defined (DOUBLE_SUPPORT)
__kernel void arithm_log_D6(int rows, int cols, int srcStep, int dstStep, int srcOffset, int dstOffset, __global double *src, __global double *dst)
__kernel void arithm_log_C2(__global srcT *src, __global srcT *dst,
int cols1, int rows,
int srcOffset1, int dstOffset1,
int srcStep1, int dstStep1)
{
int x = get_global_id(0);
int x1 = get_global_id(0) << 1;
int y = get_global_id(1);
if(x < cols && y < rows )
if(x1 < cols1 && y < rows)
{
x = x << 3;
int srcIdx = mad24( y, srcStep, x + srcOffset);
int dstIdx = mad24( y, dstStep, x + dstOffset);
int srcIdx = mad24(y, srcStep1, x1 + srcOffset1);
int dstIdx = mad24(y, dstStep1, x1 + dstOffset1);
double src_data = *((__global double *)((__global char *)src + srcIdx));
double dst_data = (src_data == 0) ? INF_DOUBLE : log(fabs(src_data));
*((__global double *)((__global char *)dst + dstIdx)) = dst_data;
dst[dstIdx] = log(src[srcIdx]);
dst[dstIdx + 1] = x1 + 1 < cols1 ? log(src[srcIdx + 1]) : dst[dstIdx + 1];
}
}
__kernel void arithm_log_C4(__global srcT *src, __global srcT *dst,
int cols1, int rows,
int srcOffset1, int dstOffset1,
int srcStep1, int dstStep1)
{
int x1 = get_global_id(0) << 2;
int y = get_global_id(1);
if(x1 < cols1 && y < rows)
{
int srcIdx = mad24(y, srcStep1, x1 + srcOffset1);
int dstIdx = mad24(y, dstStep1, x1 + dstOffset1);
dst[dstIdx] = log(src[srcIdx]);
dst[dstIdx + 1] = x1 + 1 < cols1 ? log(src[srcIdx + 1]) : dst[dstIdx + 1];
dst[dstIdx + 2] = x1 + 2 < cols1 ? log(src[srcIdx + 2]) : dst[dstIdx + 2];
dst[dstIdx + 3] = x1 + 3 < cols1 ? log(src[srcIdx + 3]) : dst[dstIdx + 3];
}
}
#endif

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