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FFmpeg/tests/checkasm/av_tx.c

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checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with FFmpeg; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "libavutil/mem_internal.h"
#include "libavutil/tx.h"
#include "libavutil/error.h"
#include "checkasm.h"
checkasm: Use the correct AVTXContext in av_tx tests Keep a reference to the correct associated context of the reference function and use that context when calling the reference function.
3 years ago
#include <stdlib.h>
checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
#define EPS 0.00005
#define SCALE_NOOP(x) (x)
#define SCALE_INT20(x) (av_clip64(lrintf((x) * 2147483648.0), INT32_MIN, INT32_MAX) >> 12)
#define randomize_complex(BUF, LEN, TYPE, SCALE) \
do { \
TYPE *buf = (TYPE *)BUF; \
for (int i = 0; i < LEN; i++) { \
double fre = (double)rnd() / UINT_MAX; \
double fim = (double)rnd() / UINT_MAX; \
buf[i] = (TYPE){ SCALE(fre), SCALE(fim) }; \
} \
} while (0)
static const int check_lens[] = {
2, 4, 8, 16, 32, 64, 1024, 16384,
};
checkasm: Use the correct AVTXContext in av_tx tests Keep a reference to the correct associated context of the reference function and use that context when calling the reference function.
3 years ago
static AVTXContext *tx_refs[6 /*AVTXType*/][FF_ARRAY_ELEMS(check_lens)];
static int init = 0;
static void free_tx_refs(void)
{
for (int i = 0; i < FF_ARRAY_ELEMS(tx_refs); i++)
for (int j = 0; j < FF_ARRAY_ELEMS(*tx_refs); j++)
av_tx_uninit(&tx_refs[i][j]);
}
checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
#define CHECK_TEMPLATE(PREFIX, TYPE, DATA_TYPE, SCALE, LENGTHS, CHECK_EXPRESSION) \
do { \
int err; \
AVTXContext *tx; \
av_tx_fn fn; \
int num_checks = 0; \
int last_check = 0; \
const void *scale = &SCALE; \
\
for (int i = 0; i < FF_ARRAY_ELEMS(LENGTHS); i++) { \
int len = LENGTHS[i]; \
\
if ((err = av_tx_init(&tx, &fn, TYPE, 0, len, &scale, 0x0)) < 0) { \
fprintf(stderr, "av_tx: %s\n", av_err2str(err)); \
return; \
} \
\
if (check_func(fn, PREFIX "_%i", len)) { \
checkasm: Use the correct AVTXContext in av_tx tests Keep a reference to the correct associated context of the reference function and use that context when calling the reference function.
3 years ago
AVTXContext *tx_ref = tx_refs[TYPE][i]; \
if (!tx_ref) \
tx_ref = tx; \
checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
num_checks++; \
last_check = len; \
checkasm: Use the correct AVTXContext in av_tx tests Keep a reference to the correct associated context of the reference function and use that context when calling the reference function.
3 years ago
call_ref(tx_ref, out_ref, in, sizeof(DATA_TYPE)); \
call_new(tx, out_new, in, sizeof(DATA_TYPE)); \
checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
if (CHECK_EXPRESSION) { \
fail(); \
checkasm: Use the correct AVTXContext in av_tx tests Keep a reference to the correct associated context of the reference function and use that context when calling the reference function.
3 years ago
av_tx_uninit(&tx); \
checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
break; \
} \
bench_new(tx, out_new, in, sizeof(DATA_TYPE)); \
checkasm: Use the correct AVTXContext in av_tx tests Keep a reference to the correct associated context of the reference function and use that context when calling the reference function.
3 years ago
av_tx_uninit(&tx_refs[TYPE][i]); \
tx_refs[TYPE][i] = tx; \
} else { \
av_tx_uninit(&tx); \
checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
} \
} \
\
if (num_checks == 1) \
report(PREFIX "_%i", last_check); \
else if (num_checks) \
report(PREFIX); \
} while (0)
void checkasm_check_av_tx(void)
{
const float scale_float = 1.0f;
const double scale_double = 1.0f;
declare_func(void, AVTXContext *tx, void *out, void *in, ptrdiff_t stride);
void *in = av_malloc(16384*2*8);
void *out_ref = av_malloc(16384*2*8);
void *out_new = av_malloc(16384*2*8);
randomize_complex(in, 16384, AVComplexFloat, SCALE_NOOP);
CHECK_TEMPLATE("float_fft", AV_TX_FLOAT_FFT, AVComplexFloat, scale_float, check_lens,
!float_near_abs_eps_array(out_ref, out_new, EPS, len*2));
randomize_complex(in, 16384, AVComplexDouble, SCALE_NOOP);
CHECK_TEMPLATE("double_fft", AV_TX_DOUBLE_FFT, AVComplexDouble, scale_double, check_lens,
!double_near_abs_eps_array(out_ref, out_new, EPS, len*2));
av_free(in);
av_free(out_ref);
av_free(out_new);
checkasm: Use the correct AVTXContext in av_tx tests Keep a reference to the correct associated context of the reference function and use that context when calling the reference function.
3 years ago
if (!init) {
init = 1;
atexit(free_tx_refs);
}
checkasm: add av_tx FFT SIMD testing code This sadly required making changes to the code itself, due to the same context needing to be reused for both versions. The lookup table had to be duplicated for both versions.
4 years ago
}