From f0f687446e97d1566a2b16f0d4d7ed22a0830053 Mon Sep 17 00:00:00 2001 From: Janne Grunau Date: Mon, 3 Mar 2014 19:15:35 +0100 Subject: float_dsp: add test program and use it as fate test --- libavutil/float_dsp.c | 283 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 283 insertions(+) (limited to 'libavutil/float_dsp.c') diff --git a/libavutil/float_dsp.c b/libavutil/float_dsp.c index 3707e06694..f5680629a5 100644 --- a/libavutil/float_dsp.c +++ b/libavutil/float_dsp.c @@ -132,3 +132,286 @@ av_cold void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact) ff_float_dsp_init_x86(fdsp); #endif } + +#ifdef TEST + +#include +#include +#include +#include +#include + +#include "cpu.h" +#include "lfg.h" +#include "log.h" +#include "mem.h" +#include "random_seed.h" + +#define LEN 240 + +static void fill_float_array(AVLFG *lfg, float *a, int len) +{ + int i; + double bmg[2], stddev = 10.0, mean = 0.0; + + for (i = 0; i < len; i += 2) { + av_bmg_get(lfg, bmg); + a[i] = bmg[0] * stddev + mean; + a[i + 1] = bmg[1] * stddev + mean; + } +} +static int compare_floats(const float *a, const float *b, int len, + float max_diff) +{ + int i; + for (i = 0; i < len; i++) { + if (fabsf(a[i] - b[i]) > max_diff) { + av_log(NULL, AV_LOG_ERROR, "%d: %- .12f - %- .12f = % .12g\n", + i, a[i], b[i], a[i] - b[i]); + return -1; + } + } + return 0; +} + +static void fill_double_array(AVLFG *lfg, double *a, int len) +{ + int i; + double bmg[2], stddev = 10.0, mean = 0.0; + + for (i = 0; i < len; i += 2) { + av_bmg_get(lfg, bmg); + a[i] = bmg[0] * stddev + mean; + a[i + 1] = bmg[1] * stddev + mean; + } +} + +static int compare_doubles(const double *a, const double *b, int len, + double max_diff) +{ + int i; + + for (i = 0; i < len; i++) { + if (fabs(a[i] - b[i]) > max_diff) { + av_log(NULL, AV_LOG_ERROR, "%d: %- .12f - %- .12f = % .12g\n", + i, a[i], b[i], a[i] - b[i]); + return -1; + } + } + return 0; +} + +static int test_vector_fmul(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, const float *v2) +{ + DECLARE_ALIGNED(32, float, cdst)[LEN]; + DECLARE_ALIGNED(32, float, odst)[LEN]; + int ret; + + cdsp->vector_fmul(cdst, v1, v2, LEN); + fdsp->vector_fmul(odst, v1, v2, LEN); + + if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +#define ARBITRARY_FMAC_SCALAR_CONST 0.005 +static int test_vector_fmac_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, const float *src0, float scale) +{ + DECLARE_ALIGNED(32, float, cdst)[LEN]; + DECLARE_ALIGNED(32, float, odst)[LEN]; + int ret; + + memcpy(cdst, v1, LEN * sizeof(*v1)); + memcpy(odst, v1, LEN * sizeof(*v1)); + + cdsp->vector_fmac_scalar(cdst, src0, scale, LEN); + fdsp->vector_fmac_scalar(odst, src0, scale, LEN); + + if (ret = compare_floats(cdst, odst, LEN, ARBITRARY_FMAC_SCALAR_CONST)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +static int test_vector_fmul_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, float scale) +{ + DECLARE_ALIGNED(32, float, cdst)[LEN]; + DECLARE_ALIGNED(32, float, odst)[LEN]; + int ret; + + cdsp->vector_fmul_scalar(cdst, v1, scale, LEN); + fdsp->vector_fmul_scalar(odst, v1, scale, LEN); + + if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +static int test_vector_dmul_scalar(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const double *v1, double scale) +{ + DECLARE_ALIGNED(32, double, cdst)[LEN]; + DECLARE_ALIGNED(32, double, odst)[LEN]; + int ret; + + cdsp->vector_dmul_scalar(cdst, v1, scale, LEN); + fdsp->vector_dmul_scalar(odst, v1, scale, LEN); + + if (ret = compare_doubles(cdst, odst, LEN, DBL_EPSILON)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +#define ARBITRARY_FMUL_WINDOW_CONST 0.008 +static int test_vector_fmul_window(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, const float *v2, const float *v3) +{ + DECLARE_ALIGNED(32, float, cdst)[LEN]; + DECLARE_ALIGNED(32, float, odst)[LEN]; + int ret; + + cdsp->vector_fmul_window(cdst, v1, v2, v3, LEN / 2); + fdsp->vector_fmul_window(odst, v1, v2, v3, LEN / 2); + + if (ret = compare_floats(cdst, odst, LEN, ARBITRARY_FMUL_WINDOW_CONST)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +#define ARBITRARY_FMUL_ADD_CONST 0.005 +static int test_vector_fmul_add(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, const float *v2, const float *v3) +{ + DECLARE_ALIGNED(32, float, cdst)[LEN]; + DECLARE_ALIGNED(32, float, odst)[LEN]; + int ret; + + cdsp->vector_fmul_add(cdst, v1, v2, v3, LEN); + fdsp->vector_fmul_add(odst, v1, v2, v3, LEN); + + if (ret = compare_floats(cdst, odst, LEN, ARBITRARY_FMUL_ADD_CONST)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +static int test_vector_fmul_reverse(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, const float *v2) +{ + DECLARE_ALIGNED(32, float, cdst)[LEN]; + DECLARE_ALIGNED(32, float, odst)[LEN]; + int ret; + + cdsp->vector_fmul_reverse(cdst, v1, v2, LEN); + fdsp->vector_fmul_reverse(odst, v1, v2, LEN); + + if (ret = compare_floats(cdst, odst, LEN, FLT_EPSILON)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +static int test_butterflies_float(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, const float *v2) +{ + DECLARE_ALIGNED(32, float, cv1)[LEN]; + DECLARE_ALIGNED(32, float, cv2)[LEN]; + DECLARE_ALIGNED(32, float, ov1)[LEN]; + DECLARE_ALIGNED(32, float, ov2)[LEN]; + int ret; + + memcpy(cv1, v1, LEN * sizeof(*v1)); + memcpy(cv2, v2, LEN * sizeof(*v2)); + memcpy(ov1, v1, LEN * sizeof(*v1)); + memcpy(ov2, v2, LEN * sizeof(*v2)); + + cdsp->butterflies_float(cv1, cv2, LEN); + fdsp->butterflies_float(ov1, ov2, LEN); + + if ((ret = compare_floats(cv1, ov1, LEN, FLT_EPSILON)) || + (ret = compare_floats(cv2, ov2, LEN, FLT_EPSILON))) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +#define ARBITRARY_SCALARPRODUCT_CONST 0.2 +static int test_scalarproduct_float(AVFloatDSPContext *fdsp, AVFloatDSPContext *cdsp, + const float *v1, const float *v2) +{ + float cprod, oprod; + int ret; + + cprod = cdsp->scalarproduct_float(v1, v2, LEN); + oprod = fdsp->scalarproduct_float(v1, v2, LEN); + + if (ret = compare_floats(&cprod, &oprod, 1, ARBITRARY_SCALARPRODUCT_CONST)) + av_log(NULL, AV_LOG_ERROR, "%s failed\n", __func__); + + return ret; +} + +int main(int argc, char **argv) +{ + int ret = 0; + uint32_t seed; + AVFloatDSPContext fdsp, cdsp; + AVLFG lfg; + + DECLARE_ALIGNED(32, float, src0)[LEN]; + DECLARE_ALIGNED(32, float, src1)[LEN]; + DECLARE_ALIGNED(32, float, src2)[LEN]; + DECLARE_ALIGNED(32, double, dbl_src0)[LEN]; + DECLARE_ALIGNED(32, double, dbl_src1)[LEN]; + + if (argc > 2 && !strcmp(argv[1], "-s")) + seed = strtoul(argv[2], NULL, 10); + else + seed = av_get_random_seed(); + + av_log(NULL, AV_LOG_INFO, "float_dsp-test: random seed %u\n", seed); + + av_lfg_init(&lfg, seed); + + fill_float_array(&lfg, src0, LEN); + fill_float_array(&lfg, src1, LEN); + fill_float_array(&lfg, src2, LEN); + + fill_double_array(&lfg, dbl_src0, LEN); + fill_double_array(&lfg, dbl_src1, LEN); + + avpriv_float_dsp_init(&fdsp, 1); + av_set_cpu_flags_mask(0); + avpriv_float_dsp_init(&cdsp, 1); + + if (test_vector_fmul(&fdsp, &cdsp, src0, src1)) + ret -= 1 << 0; + if (test_vector_fmac_scalar(&fdsp, &cdsp, src2, src0, src1[0])) + ret -= 1 << 1; + if (test_vector_fmul_scalar(&fdsp, &cdsp, src0, src1[0])) + ret -= 1 << 2; + if (test_vector_fmul_window(&fdsp, &cdsp, src0, src1, src2)) + ret -= 1 << 3; + if (test_vector_fmul_add(&fdsp, &cdsp, src0, src1, src2)) + ret -= 1 << 4; + if (test_vector_fmul_reverse(&fdsp, &cdsp, src0, src1)) + ret -= 1 << 5; + if (test_butterflies_float(&fdsp, &cdsp, src0, src1)) + ret -= 1 << 6; + if (test_scalarproduct_float(&fdsp, &cdsp, src0, src1)) + ret -= 1 << 7; + if (test_vector_dmul_scalar(&fdsp, &cdsp, dbl_src0, dbl_src1[0])) + ret -= 1 << 8; + + return ret; +} + +#endif /* TEST */ -- cgit v1.2.3