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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// @Authors
// Peng Xiao, pengxiao@multicorewareinc.com
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors as is and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "precomp.hpp"
namespace cv { namespace ocl {
// used for clAmdBlas library to avoid redundant setup/teardown
void clBlasSetup();
void clBlasTeardown();
}} /* namespace cv { namespace ocl */
#if !defined HAVE_CLAMDBLAS
void cv::ocl::gemm(const oclMat&, const oclMat&, double,
const oclMat&, double, oclMat&, int)
{
CV_Error(CV_OpenCLNoAMDBlasFft, "OpenCL BLAS is not implemented");
}
void cv::ocl::clBlasSetup()
{
CV_Error(CV_OpenCLNoAMDBlasFft, "OpenCL BLAS is not implemented");
}
void cv::ocl::clBlasTeardown()
{
//intentionally do nothing
}
#else
#include "opencv2/ocl/cl_runtime/clamdblas_runtime.hpp"
using namespace cv;
static bool clBlasInitialized = false;
void cv::ocl::clBlasSetup()
{
if(!clBlasInitialized)
{
AutoLock lock(getInitializationMutex());
if(!clBlasInitialized)
{
openCLSafeCall(clAmdBlasSetup());
clBlasInitialized = true;
}
}
}
void cv::ocl::clBlasTeardown()
{
AutoLock lock(getInitializationMutex());
if(clBlasInitialized)
{
clAmdBlasTeardown();
clBlasInitialized = false;
}
}
void cv::ocl::gemm(const oclMat &src1, const oclMat &src2, double alpha,
const oclMat &src3, double beta, oclMat &dst, int flags)
{
CV_Assert(src1.cols == src2.rows &&
(src3.empty() || (src1.rows == src3.rows && src2.cols == src3.cols)));
CV_Assert(!(cv::GEMM_3_T & flags)); // cv::GEMM_3_T is not supported
if(!src3.empty())
{
src3.copyTo(dst);
}
else
{
dst.create(src1.rows, src2.cols, src1.type());
dst.setTo(Scalar::all(0));
}
clBlasSetup();
const clAmdBlasTranspose transA = (cv::GEMM_1_T & flags) ? clAmdBlasTrans : clAmdBlasNoTrans;
const clAmdBlasTranspose transB = (cv::GEMM_2_T & flags) ? clAmdBlasTrans : clAmdBlasNoTrans;
const clAmdBlasOrder order = clAmdBlasRowMajor;
const int M = src1.rows;
const int N = src2.cols;
const int K = src1.cols;
int lda = src1.step;
int ldb = src2.step;
int ldc = dst.step;
int offa = src1.offset;
int offb = src2.offset;
int offc = dst.offset;
cl_command_queue clq = *(cl_command_queue*)src1.clCxt->getOpenCLCommandQueuePtr();
switch(src1.type())
{
case CV_32FC1:
lda /= sizeof(float);
ldb /= sizeof(float);
ldc /= sizeof(float);
offa /= sizeof(float);
offb /= sizeof(float);
offc /= sizeof(float);
openCLSafeCall
(
clAmdBlasSgemmEx(order, transA, transB, M, N, K,
alpha, (const cl_mem)src1.data, offa, lda, (const cl_mem)src2.data, offb, ldb,
beta, (cl_mem)dst.data, offc, ldc, 1, &clq, 0, NULL, NULL)
);
break;
case CV_64FC1:
lda /= sizeof(double);
ldb /= sizeof(double);
ldc /= sizeof(double);
offa /= sizeof(double);
offb /= sizeof(double);
offc /= sizeof(double);
openCLSafeCall
(
clAmdBlasDgemmEx(order, transA, transB, M, N, K,
alpha, (const cl_mem)src1.data, offa, lda, (const cl_mem)src2.data, offb, ldb,
beta, (cl_mem)dst.data, offc, ldc, 1, &clq, 0, NULL, NULL)
);
break;
case CV_32FC2:
{
lda /= sizeof(std::complex<float>);
ldb /= sizeof(std::complex<float>);
ldc /= sizeof(std::complex<float>);
offa /= sizeof(std::complex<float>);
offb /= sizeof(std::complex<float>);
offc /= sizeof(std::complex<float>);
cl_float2 alpha_2 = {{alpha, 0}};
cl_float2 beta_2 = {{beta, 0}};
openCLSafeCall
(
clAmdBlasCgemmEx(order, transA, transB, M, N, K,
alpha_2, (const cl_mem)src1.data, offa, lda, (const cl_mem)src2.data, offb, ldb,
beta_2, (cl_mem)dst.data, offc, ldc, 1, &clq, 0, NULL, NULL)
);
}
break;
case CV_64FC2:
{
lda /= sizeof(std::complex<double>);
ldb /= sizeof(std::complex<double>);
ldc /= sizeof(std::complex<double>);
offa /= sizeof(std::complex<double>);
offb /= sizeof(std::complex<double>);
offc /= sizeof(std::complex<double>);
cl_double2 alpha_2 = {{alpha, 0}};
cl_double2 beta_2 = {{beta, 0}};
openCLSafeCall
(
clAmdBlasZgemmEx(order, transA, transB, M, N, K,
alpha_2, (const cl_mem)src1.data, offa, lda, (const cl_mem)src2.data, offb, ldb,
beta_2, (cl_mem)dst.data, offc, ldc, 1, &clq, 0, NULL, NULL)
);
}
break;
}
}
#endif