1 /*M///////////////////////////////////////////////////////////////////////////////////////
3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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6 // If you do not agree to this license, do not download, install,
7 // copy or use the software.
11 // For Open Source Computer Vision Library
13 // Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
14 // Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
15 // Third party copyrights are property of their respective owners.
18 // Jia Haipeng, jiahaipeng95@gmail.com
20 // Redistribution and use in source and binary forms, with or without modification,
21 // are permitted provided that the following conditions are met:
23 // * Redistribution's of source code must retain the above copyright notice,
24 // this list of conditions and the following disclaimer.
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27 // this list of conditions and the following disclaimer in the documentation
28 // and/or other oclMaterials provided with the distribution.
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46 #include "precomp.hpp"
50 using namespace cv::ocl;
52 ////////////////////////////////////////////////////////////////////////
53 ///////////////// oclMat merge and split ///////////////////////////////
54 ////////////////////////////////////////////////////////////////////////
60 ///////////////////////////OpenCL kernel strings///////////////////////////
61 extern const char *merge_mat;
62 extern const char *split_mat;
71 static void merge_vector_run(const oclMat *mat_src, size_t n, oclMat &mat_dst)
73 if(!mat_dst.clCxt->supportsFeature(Context::CL_DOUBLE) && mat_dst.type() == CV_64F)
75 CV_Error(Error::GpuNotSupported, "Selected device don't support double\r\n");
79 Context *clCxt = mat_dst.clCxt;
80 int channels = mat_dst.oclchannels();
81 int depth = mat_dst.depth();
83 String kernelName = "merge_vector";
85 int vector_lengths[4][7] = {{0, 0, 0, 0, 0, 0, 0},
86 {2, 2, 1, 1, 1, 1, 1},
87 {4, 4, 2, 2 , 1, 1, 1},
91 size_t vector_length = vector_lengths[channels - 1][depth];
92 int offset_cols = (mat_dst.offset / mat_dst.elemSize()) & (vector_length - 1);
93 int cols = divUp(mat_dst.cols + offset_cols, vector_length);
95 size_t localThreads[3] = { 64, 4, 1 };
96 size_t globalThreads[3] = { cols, mat_dst.rows, 1 };
98 int dst_step1 = mat_dst.cols * mat_dst.elemSize();
99 std::vector<std::pair<size_t , const void *> > args;
100 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_dst.data));
101 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst.step));
102 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst.offset));
103 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_src[0].data));
104 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[0].step));
105 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[0].offset));
106 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_src[1].data));
107 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[1].step));
108 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[1].offset));
112 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_src[2].data));
113 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[2].step));
114 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[2].offset));
118 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_src[2].data));
119 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[2].step));
120 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[2].offset));
124 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_src[3].data));
125 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[3].step));
126 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src[3].offset));
130 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst.rows));
131 args.push_back( std::make_pair( sizeof(cl_int), (void *)&cols));
132 args.push_back( std::make_pair( sizeof(cl_int), (void *)&dst_step1));
134 openCLExecuteKernel(clCxt, &merge_mat, kernelName, globalThreads, localThreads, args, channels, depth);
136 static void merge(const oclMat *mat_src, size_t n, oclMat &mat_dst)
141 int depth = mat_src[0].depth();
142 Size size = mat_src[0].size();
144 int total_channels = 0;
146 for(size_t i = 0; i < n; ++i)
148 CV_Assert(depth == mat_src[i].depth());
149 CV_Assert(size == mat_src[i].size());
151 total_channels += mat_src[i].oclchannels();
154 CV_Assert(total_channels <= 4);
156 if(total_channels == 1)
158 mat_src[0].copyTo(mat_dst);
162 mat_dst.create(size, CV_MAKETYPE(depth, total_channels));
163 merge_vector_run(mat_src, n, mat_dst);
165 static void split_vector_run(const oclMat &mat_src, oclMat *mat_dst)
168 if(!mat_src.clCxt->supportsFeature(Context::CL_DOUBLE) && mat_src.type() == CV_64F)
170 CV_Error(Error::GpuNotSupported, "Selected device don't support double\r\n");
174 Context *clCxt = mat_src.clCxt;
175 int channels = mat_src.oclchannels();
176 int depth = mat_src.depth();
178 String kernelName = "split_vector";
180 int vector_lengths[4][7] = {{0, 0, 0, 0, 0, 0, 0},
181 {4, 4, 2, 2, 1, 1, 1},
182 {4, 4, 2, 2 , 1, 1, 1},
183 {4, 4, 2, 2, 1, 1, 1}
186 size_t vector_length = vector_lengths[channels - 1][mat_dst[0].depth()];
188 int max_offset_cols = 0;
189 for(int i = 0; i < channels; i++)
191 int offset_cols = (mat_dst[i].offset / mat_dst[i].elemSize()) & (vector_length - 1);
192 if(max_offset_cols < offset_cols)
193 max_offset_cols = offset_cols;
196 int cols = vector_length == 1 ? divUp(mat_src.cols, vector_length)
197 : divUp(mat_src.cols + max_offset_cols, vector_length);
199 size_t localThreads[3] = { 64, 4, 1 };
200 size_t globalThreads[3] = { cols, mat_src.rows, 1 };
202 int dst_step1 = mat_dst[0].cols * mat_dst[0].elemSize();
203 std::vector<std::pair<size_t , const void *> > args;
204 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_src.data));
205 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src.step));
206 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src.offset));
207 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_dst[0].data));
208 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[0].step));
209 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[0].offset));
210 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_dst[1].data));
211 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[1].step));
212 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[1].offset));
216 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_dst[2].data));
217 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[2].step));
218 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[2].offset));
222 args.push_back( std::make_pair( sizeof(cl_mem), (void *)&mat_dst[3].data));
223 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[3].step));
224 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_dst[3].offset));
227 args.push_back( std::make_pair( sizeof(cl_int), (void *)&mat_src.rows));
228 args.push_back( std::make_pair( sizeof(cl_int), (void *)&cols));
229 args.push_back( std::make_pair( sizeof(cl_int), (void *)&dst_step1));
231 openCLExecuteKernel(clCxt, &split_mat, kernelName, globalThreads, localThreads, args, channels, depth);
233 static void split(const oclMat &mat_src, oclMat *mat_dst)
237 int depth = mat_src.depth();
238 int num_channels = mat_src.oclchannels();
239 Size size = mat_src.size();
241 if(num_channels == 1)
243 mat_src.copyTo(mat_dst[0]);
248 for(i = 0; i < num_channels; i++)
249 mat_dst[i].create(size, CV_MAKETYPE(depth, 1));
251 split_vector_run(mat_src, mat_dst);
257 void cv::ocl::merge(const oclMat *src, size_t n, oclMat &dst)
259 split_merge::merge(src, n, dst);
261 void cv::ocl::merge(const std::vector<oclMat> &src, oclMat &dst)
263 split_merge::merge(&src[0], src.size(), dst);
266 void cv::ocl::split(const oclMat &src, oclMat *dst)
268 split_merge::split(src, dst);
270 void cv::ocl::split(const oclMat &src, std::vector<oclMat> &dst)
272 dst.resize(src.oclchannels());
273 if(src.oclchannels() > 0)
274 split_merge::split(src, &dst[0]);