added cv::countNonZero to T-API

2013-12-01 03:02:13 +04:00
parent fed7e61879
commit 28575c1969
3 changed files with 145 additions and 5 deletions
--- a/modules/core/src/opencl/count_non_zero.cl
+++ b/modules/core/src/opencl/count_non_zero.cl
@@ -0,0 +1,100 @@
+////////////////////////////////////////////////////////////////////////////////////////
+//
+//  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, Institute Of Software Chinese Academy Of Science, all rights reserved.
+// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// @Authors
+//    Shengen Yan,yanshengen@gmail.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.
+//
+
+#ifdef DOUBLE_SUPPORT
+#ifdef cl_amd_fp64
+#pragma OPENCL EXTENSION cl_amd_fp64:enable
+#elif defined (cl_khr_fp64)
+#pragma OPENCL EXTENSION cl_khr_fp64:enable
+#endif
+#endif
+
+/**************************************Count NonZero**************************************/
+
+__kernel void count_non_zero(__global const uchar * srcptr, int step, int offset, int cols,
+                            int total, int groupnum, __global uchar * dstptr)
+{
+    int lid = get_local_id(0);
+    int gid = get_group_id(0);
+    int  id = get_global_id(0);
+
+    __local int localmem[WGS2_ALIGNED];
+    if (lid < WGS2_ALIGNED)
+        localmem[lid] = 0;
+    barrier(CLK_LOCAL_MEM_FENCE);
+
+    int nonzero = (int)(0), src_index;
+    srcT zero = (srcT)(0), one = (srcT)(1);
+
+    for (int grain = groupnum * WGS; id < total; id += grain)
+    {
+        src_index = mad24(id / cols, step, offset + (id % cols) * (int)sizeof(srcT));
+        __global const srcT * src = (__global const srcT *)(srcptr + src_index);
+        nonzero += src[0] == zero ? zero : one;
+    }
+
+    if (lid >= WGS2_ALIGNED)
+        localmem[lid - WGS2_ALIGNED] = nonzero;
+    barrier(CLK_LOCAL_MEM_FENCE);
+
+    if (lid < WGS2_ALIGNED)
+        localmem[lid] = nonzero + localmem[lid];
+    barrier(CLK_LOCAL_MEM_FENCE);
+
+    for (int lsize = WGS2_ALIGNED >> 1; lsize > 0; lsize >>= 1)
+    {
+        if (lid < lsize)
+        {
+           int lid2 = lsize + lid;
+           localmem[lid] = localmem[lid] + localmem[lid2];
+        }
+        barrier(CLK_LOCAL_MEM_FENCE);
+    }
+
+    if (lid == 0)
+    {
+        __global int * dst = (__global int *)(dstptr + (int)sizeof(int) * gid);
+        dst[0] = localmem[0];
+    }
+}