| | |
| | | #include "opencl.h" |
| | | #include <math.h> |
| | | |
| | | cl_kernel get_im2col_kernel() |
| | | cl_kernel get_im2col_pad_kernel() |
| | | { |
| | | static int init = 0; |
| | | static cl_kernel im2col_kernel; |
| | | if(!init){ |
| | | im2col_kernel = get_kernel("src/im2col.cl", "im2col", 0); |
| | | im2col_kernel = get_kernel("src/im2col.cl", "im2col_pad", 0); |
| | | init = 1; |
| | | } |
| | | return im2col_kernel; |
| | | } |
| | | |
| | | cl_kernel get_im2col_nopad_kernel() |
| | | { |
| | | static int init = 0; |
| | | static cl_kernel im2col_kernel; |
| | | if(!init){ |
| | | im2col_kernel = get_kernel("src/im2col.cl", "im2col_nopad", 0); |
| | | init = 1; |
| | | } |
| | | return im2col_kernel; |
| | |
| | | int ksize, int stride, int pad, cl_mem data_col) |
| | | { |
| | | cl_setup(); |
| | | cl_kernel im2col_kernel = get_im2col_kernel(); |
| | | cl_command_queue queue = cl.queue; |
| | | |
| | | cl_uint i = 0; |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(data_im), (void*) &data_im); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(batch), (void*) &batch); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(channels), (void*) &channels); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(height), (void*) &height); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(width), (void*) &width); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(ksize), (void*) &ksize); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(stride), (void*) &stride); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(pad), (void*) &pad); |
| | | cl.error = clSetKernelArg(im2col_kernel, i++, sizeof(data_col), (void*) &data_col); |
| | | check_error(cl); |
| | | |
| | | int height_col = (height - ksize) / stride + 1; |
| | | int width_col = (width - ksize) / stride + 1; |
| | | int channels_col = channels * ksize * ksize; |
| | | cl_kernel kernel = get_im2col_nopad_kernel(); |
| | | |
| | | if (pad){ |
| | | height_col = 1 + (height-1) / stride; |
| | | width_col = 1 + (width-1) / stride; |
| | | kernel = get_im2col_pad_kernel(); |
| | | } |
| | | |
| | | cl_command_queue queue = cl.queue; |
| | | |
| | | cl_uint i = 0; |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(data_im), (void*) &data_im); |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(batch), (void*) &batch); |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(channels), (void*) &channels); |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(height), (void*) &height); |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(width), (void*) &width); |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(ksize), (void*) &ksize); |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(stride), (void*) &stride); |
| | | cl.error = clSetKernelArg(kernel, i++, sizeof(data_col), (void*) &data_col); |
| | | check_error(cl); |
| | | |
| | | size_t global_size = batch*channels_col*height_col*width_col; |
| | | |
| | | clEnqueueNDRangeKernel(queue, im2col_kernel, 1, 0, |
| | | cl.error = clEnqueueNDRangeKernel(queue, kernel, 1, 0, |
| | | &global_size, 0, 0, 0, 0); |
| | | check_error(cl); |
| | | } |