added setIdentity to T-API

modules/core/src/matrix.cpp

@@ -41,6 +41,7 @@
 //M*/
 
 #include "precomp.hpp"
+#include "opencl_kernels.hpp"
 
 /****************************************************************************************\
 *                           [scaled] Identity matrix initialization                      *
@@ -2368,10 +2369,35 @@ void cv::vconcat(InputArray _src, OutputArray dst)
 }
 
 //////////////////////////////////////// set identity ////////////////////////////////////////////
+
+namespace cv {
+
+static bool ocl_setIdentity( InputOutputArray _m, const Scalar& s )
+{
+    int type = _m.type(), cn = CV_MAT_CN(type);
+    if (cn == 3)
+        return false;
+
+    UMat m = _m.getUMat();
+
+    ocl::Kernel k("setIdentity", ocl::core::set_identity_oclsrc,
+                  format("-D T=%s", ocl::memopTypeToStr(type)));
+    k.args(ocl::KernelArg::WriteOnly(m), ocl::KernelArg::Constant(Mat(1, 1, type, s)));
+
+    size_t globalsize[2] = { m.cols, m.rows };
+    return k.run(2, globalsize, NULL, false);
+}
+
+}
+
 void cv::setIdentity( InputOutputArray _m, const Scalar& s )
 {
+    CV_Assert( _m.dims() <= 2 );
+
+    if (ocl::useOpenCL() && _m.isUMat() && ocl_setIdentity(_m, s))
+        return;
+
     Mat m = _m.getMat();
-    CV_Assert( m.dims <= 2 );
     int i, j, rows = m.rows, cols = m.cols, type = m.type();
 
     if( type == CV_32FC1 )

modules/core/src/opencl/set_identity.cl

+/*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
+//    Jin Ma jin@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*/
+
+__kernel void setIdentity(__global uchar * srcptr, int src_step, int src_offset, int rows, int cols,
+                          T scalar)
+{
+    int x = get_global_id(0);
+    int y = get_global_id(1);
+
+    if (x < cols && y < rows)
+    {
+        int src_index = mad24(y, src_step, src_offset + x * (int)sizeof(T));
+        __global T * src = (__global T *)(srcptr + src_index);
+
+        src[0] = x == y ? scalar : (T)(0);
+    }
+}