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add pffft

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This commit is contained in:
John K. Luebs
2024-11-09 14:57:18 -06:00
parent 78a00f71cc
commit a1790b8977
69 changed files with 25719 additions and 0 deletions
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61
pffft/pf_conv_dispatcher.cpp Normal file
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#include "pf_conv_dispatcher.h"
#if 0
#include <stdio.h>
#define DPRINT(...) fprintf(stderr, __VA_ARGS__)
#else
#define DPRINT(...) do { } while (0)
#endif
#define N_DEFAULT_ARCHES 2
// 0 is "none"
// 1 "dflt"
ptr_to_conv_f_ptrs * get_all_conv_arch_ptrs(int * p_num_arch)
{
static ptr_to_conv_f_ptrs * all_arches = nullptr;
static int n_arch = 0;
if (!all_arches)
{
n_arch = N_DEFAULT_ARCHES;
// @TODO: runtime check if actual CPU supports specific architecture
#if defined(CONV_ARCH_GCC_AMD64)
static const conv_f_ptrs *conv_arch_ptrs[N_DEFAULT_ARCHES+4] = {0};
DPRINT("CONV_ARCH_GCC_AMD64: sse3, sse4, avx, avx2\n");
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, sse3)();
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, sse4)();
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, avx) ();
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, avx2)();
#elif defined(CONV_ARCH_MSVC_AMD64)
static const conv_f_ptrs *conv_arch_ptrs[N_DEFAULT_ARCHES+3] = {0};
DPRINT("CONV_ARCH_MSVC_AMD64: sse2, avx, avx2\n");
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, sse2)();
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, avx) ();
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, avx2)();
#elif defined(CONV_ARCH_GCC_ARM32NEON)
static const conv_f_ptrs *conv_arch_ptrs[N_DEFAULT_ARCHES+3] = {0};
DPRINT("CONV_ARCH_GCC_ARM32NEON: neon_vfpv4, neon_rpi3_a53\n");
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, neon_vfpv4)();
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, neon_rpi3_a53)();
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, neon_rpi4_a72)();
#elif defined(CONV_ARCH_GCC_AARCH64)
static const conv_f_ptrs *conv_arch_ptrs[N_DEFAULT_ARCHES+1] = {0};
DPRINT("CONV_ARCH_GCC_AARCH64: -\n");
conv_arch_ptrs[n_arch++] = CONV_FN_ARCH(conv_ptrs, armv8a)();
#else
static const conv_f_ptrs *conv_arch_ptrs[N_DEFAULT_ARCHES] = {0};
DPRINT("unknown CONV_ARCH: -\n");
#endif
conv_arch_ptrs[0] = CONV_FN_ARCH(conv_ptrs, none)();
conv_arch_ptrs[1] = CONV_FN_ARCH(conv_ptrs, dflt)();
all_arches = conv_arch_ptrs;
}
if (p_num_arch)
*p_num_arch = n_arch;
return all_arches;
}