fft_base_kernels.h

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// File:       fft_base_kernels.h
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#ifndef __CL_FFT_BASE_KERNELS_
#define __CL_FFT_BASE_KERNELS_

#include <string>

using namespace std;

static string baseKernels = string(
                          "#ifndef M_PI\n"
                          "#define M_PI 0x1.921fb54442d18p+1\n"
                          "#endif\n"
                          "#define complexMul(a,b) ((float2)(mad(-(a).y, (b).y, (a).x * (b).x), mad((a).y, (b).x, (a).x * (b).y)))\n"
                          "#define conj(a) ((float2)((a).x, -(a).y))\n"
                          "#define conjTransp(a) ((float2)(-(a).y, (a).x))\n"
                          "\n"
                          "#define fftKernel2(a,dir) \\\n"
                          "{ \\\n"
                          "    float2 c = (a)[0];    \\\n"
                          "    (a)[0] = c + (a)[1];  \\\n"
                          "    (a)[1] = c - (a)[1];  \\\n"
                          "}\n"
                          "\n"