FFmpeg
checkasm.c
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1 /*
2  * Assembly testing and benchmarking tool
3  * Copyright (c) 2015 Henrik Gramner
4  * Copyright (c) 2008 Loren Merritt
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  */
22 
23 #include "config.h"
24 #include "config_components.h"
25 
26 #ifndef _GNU_SOURCE
27 # define _GNU_SOURCE // for syscall (performance monitoring API), strsignal()
28 #endif
29 
30 #include <signal.h>
31 #include <stdarg.h>
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include "checkasm.h"
36 #include "libavutil/common.h"
37 #include "libavutil/cpu.h"
38 #include "libavutil/intfloat.h"
39 #include "libavutil/random_seed.h"
40 
41 #if HAVE_IO_H
42 #include <io.h>
43 #endif
44 #if HAVE_PRCTL
45 #include <sys/prctl.h>
46 #endif
47 
48 #if defined(_WIN32) && !defined(SIGBUS)
49 /* non-standard, use the same value as mingw-w64 */
50 #define SIGBUS 10
51 #endif
52 
53 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
54 #include <windows.h>
55 #define COLOR_RED FOREGROUND_RED
56 #define COLOR_GREEN FOREGROUND_GREEN
57 #define COLOR_YELLOW (FOREGROUND_RED|FOREGROUND_GREEN)
58 #else
59 #define COLOR_RED 1
60 #define COLOR_GREEN 2
61 #define COLOR_YELLOW 3
62 #endif
63 
64 #if HAVE_UNISTD_H
65 #include <unistd.h>
66 #endif
67 
68 #if !HAVE_ISATTY
69 #define isatty(fd) 1
70 #endif
71 
72 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
73 #include "libavutil/arm/cpu.h"
74 
75 void (*checkasm_checked_call)(void *func, int dummy, ...) = checkasm_checked_call_novfp;
76 #endif
77 
78 /* Trade-off between speed and accuracy */
79 uint64_t bench_runs = 1U << 10;
80 
81 /* List of tests to invoke */
82 static const struct {
83  const char *name;
84  void (*func)(void);
85 } tests[] = {
86 #if CONFIG_AVCODEC
87  #if CONFIG_AAC_DECODER
88  { "aacpsdsp", checkasm_check_aacpsdsp },
89  { "sbrdsp", checkasm_check_sbrdsp },
90  #endif
91  #if CONFIG_AAC_ENCODER
92  { "aacencdsp", checkasm_check_aacencdsp },
93  #endif
94  #if CONFIG_AC3DSP
95  { "ac3dsp", checkasm_check_ac3dsp },
96  #endif
97  #if CONFIG_ALAC_DECODER
98  { "alacdsp", checkasm_check_alacdsp },
99  #endif
100  #if CONFIG_AUDIODSP
101  { "audiodsp", checkasm_check_audiodsp },
102  #endif
103  #if CONFIG_BLOCKDSP
104  { "blockdsp", checkasm_check_blockdsp },
105  #endif
106  #if CONFIG_BSWAPDSP
107  { "bswapdsp", checkasm_check_bswapdsp },
108  #endif
109  #if CONFIG_DCA_DECODER
110  { "synth_filter", checkasm_check_synth_filter },
111  #endif
112  #if CONFIG_EXR_DECODER
113  { "exrdsp", checkasm_check_exrdsp },
114  #endif
115  #if CONFIG_FDCTDSP
116  { "fdctdsp", checkasm_check_fdctdsp },
117  #endif
118  #if CONFIG_FLAC_DECODER
119  { "flacdsp", checkasm_check_flacdsp },
120  #endif
121  #if CONFIG_FMTCONVERT
122  { "fmtconvert", checkasm_check_fmtconvert },
123  #endif
124  #if CONFIG_G722DSP
125  { "g722dsp", checkasm_check_g722dsp },
126  #endif
127  #if CONFIG_H263DSP
128  { "h263dsp", checkasm_check_h263dsp },
129  #endif
130  #if CONFIG_H264CHROMA
131  { "h264chroma", checkasm_check_h264chroma },
132  #endif
133  #if CONFIG_H264DSP
134  { "h264dsp", checkasm_check_h264dsp },
135  #endif
136  #if CONFIG_H264PRED
137  { "h264pred", checkasm_check_h264pred },
138  #endif
139  #if CONFIG_H264QPEL
140  { "h264qpel", checkasm_check_h264qpel },
141  #endif
142  #if CONFIG_HEVC_DECODER
143  { "hevc_add_res", checkasm_check_hevc_add_res },
144  { "hevc_deblock", checkasm_check_hevc_deblock },
145  { "hevc_idct", checkasm_check_hevc_idct },
146  { "hevc_pel", checkasm_check_hevc_pel },
147  { "hevc_sao", checkasm_check_hevc_sao },
148  #endif
149  #if CONFIG_HUFFYUV_DECODER
150  { "huffyuvdsp", checkasm_check_huffyuvdsp },
151  #endif
152  #if CONFIG_IDCTDSP
153  { "idctdsp", checkasm_check_idctdsp },
154  #endif
155  #if CONFIG_JPEG2000_DECODER
156  { "jpeg2000dsp", checkasm_check_jpeg2000dsp },
157  #endif
158  #if CONFIG_LLAUDDSP
159  { "llauddsp", checkasm_check_llauddsp },
160  #endif
161  #if CONFIG_HUFFYUVDSP
162  { "llviddsp", checkasm_check_llviddsp },
163  #endif
164  #if CONFIG_LLVIDENCDSP
165  { "llviddspenc", checkasm_check_llviddspenc },
166  #endif
167  #if CONFIG_LPC
168  { "lpc", checkasm_check_lpc },
169  #endif
170  #if CONFIG_ME_CMP
171  { "motion", checkasm_check_motion },
172  #endif
173  #if CONFIG_OPUS_DECODER
174  { "opusdsp", checkasm_check_opusdsp },
175  #endif
176  #if CONFIG_PIXBLOCKDSP
177  { "pixblockdsp", checkasm_check_pixblockdsp },
178  #endif
179  #if CONFIG_RV34DSP
180  { "rv34dsp", checkasm_check_rv34dsp },
181  #endif
182  #if CONFIG_RV40_DECODER
183  { "rv40dsp", checkasm_check_rv40dsp },
184  #endif
185  #if CONFIG_SVQ1_ENCODER
186  { "svq1enc", checkasm_check_svq1enc },
187  #endif
188  #if CONFIG_TAK_DECODER
189  { "takdsp", checkasm_check_takdsp },
190  #endif
191  #if CONFIG_UTVIDEO_DECODER
192  { "utvideodsp", checkasm_check_utvideodsp },
193  #endif
194  #if CONFIG_V210_DECODER
195  { "v210dec", checkasm_check_v210dec },
196  #endif
197  #if CONFIG_V210_ENCODER
198  { "v210enc", checkasm_check_v210enc },
199  #endif
200  #if CONFIG_VC1DSP
201  { "vc1dsp", checkasm_check_vc1dsp },
202  #endif
203  #if CONFIG_VP8DSP
204  { "vp8dsp", checkasm_check_vp8dsp },
205  #endif
206  #if CONFIG_VP9_DECODER
207  { "vp9dsp", checkasm_check_vp9dsp },
208  #endif
209  #if CONFIG_VIDEODSP
210  { "videodsp", checkasm_check_videodsp },
211  #endif
212  #if CONFIG_VORBIS_DECODER
213  { "vorbisdsp", checkasm_check_vorbisdsp },
214  #endif
215  #if CONFIG_VVC_DECODER
216  { "vvc_alf", checkasm_check_vvc_alf },
217  { "vvc_mc", checkasm_check_vvc_mc },
218  #endif
219 #endif
220 #if CONFIG_AVFILTER
221  #if CONFIG_AFIR_FILTER
222  { "af_afir", checkasm_check_afir },
223  #endif
224  #if CONFIG_BLEND_FILTER
225  { "vf_blend", checkasm_check_blend },
226  #endif
227  #if CONFIG_BWDIF_FILTER
228  { "vf_bwdif", checkasm_check_vf_bwdif },
229  #endif
230  #if CONFIG_COLORSPACE_FILTER
231  { "vf_colorspace", checkasm_check_colorspace },
232  #endif
233  #if CONFIG_EQ_FILTER
234  { "vf_eq", checkasm_check_vf_eq },
235  #endif
236  #if CONFIG_GBLUR_FILTER
237  { "vf_gblur", checkasm_check_vf_gblur },
238  #endif
239  #if CONFIG_HFLIP_FILTER
240  { "vf_hflip", checkasm_check_vf_hflip },
241  #endif
242  #if CONFIG_NLMEANS_FILTER
243  { "vf_nlmeans", checkasm_check_nlmeans },
244  #endif
245  #if CONFIG_THRESHOLD_FILTER
246  { "vf_threshold", checkasm_check_vf_threshold },
247  #endif
248  #if CONFIG_SOBEL_FILTER
249  { "vf_sobel", checkasm_check_vf_sobel },
250  #endif
251 #endif
252 #if CONFIG_SWSCALE
253  { "sw_gbrp", checkasm_check_sw_gbrp },
254  { "sw_range_convert", checkasm_check_sw_range_convert },
255  { "sw_rgb", checkasm_check_sw_rgb },
256  { "sw_scale", checkasm_check_sw_scale },
257 #endif
258 #if CONFIG_AVUTIL
259  { "fixed_dsp", checkasm_check_fixed_dsp },
260  { "float_dsp", checkasm_check_float_dsp },
261  { "lls", checkasm_check_lls },
262  { "av_tx", checkasm_check_av_tx },
263 #endif
264  { NULL }
265 };
266 
267 /* List of cpu flags to check */
268 static const struct {
269  const char *name;
270  const char *suffix;
271  int flag;
272 } cpus[] = {
273 #if ARCH_AARCH64
274  { "ARMV8", "armv8", AV_CPU_FLAG_ARMV8 },
275  { "NEON", "neon", AV_CPU_FLAG_NEON },
276  { "DOTPROD", "dotprod", AV_CPU_FLAG_DOTPROD },
277  { "I8MM", "i8mm", AV_CPU_FLAG_I8MM },
278 #elif ARCH_ARM
279  { "ARMV5TE", "armv5te", AV_CPU_FLAG_ARMV5TE },
280  { "ARMV6", "armv6", AV_CPU_FLAG_ARMV6 },
281  { "ARMV6T2", "armv6t2", AV_CPU_FLAG_ARMV6T2 },
282  { "VFP", "vfp", AV_CPU_FLAG_VFP },
283  { "VFP_VM", "vfp_vm", AV_CPU_FLAG_VFP_VM },
284  { "VFPV3", "vfp3", AV_CPU_FLAG_VFPV3 },
285  { "NEON", "neon", AV_CPU_FLAG_NEON },
286 #elif ARCH_PPC
287  { "ALTIVEC", "altivec", AV_CPU_FLAG_ALTIVEC },
288  { "VSX", "vsx", AV_CPU_FLAG_VSX },
289  { "POWER8", "power8", AV_CPU_FLAG_POWER8 },
290 #elif ARCH_RISCV
291  { "RVI", "rvi", AV_CPU_FLAG_RVI },
292  { "misaligned", "misaligned", AV_CPU_FLAG_RV_MISALIGNED },
293  { "RVF", "rvf", AV_CPU_FLAG_RVF },
294  { "RVD", "rvd", AV_CPU_FLAG_RVD },
295  { "RVBaddr", "rvb_a", AV_CPU_FLAG_RVB_ADDR },
296  { "RVBbasic", "rvb_b", AV_CPU_FLAG_RVB_BASIC },
297  { "RVVi32", "rvv_i32", AV_CPU_FLAG_RVV_I32 },
298  { "RVVf32", "rvv_f32", AV_CPU_FLAG_RVV_F32 },
299  { "RVVi64", "rvv_i64", AV_CPU_FLAG_RVV_I64 },
300  { "RVVf64", "rvv_f64", AV_CPU_FLAG_RVV_F64 },
301  { "RV_Zvbb", "rv_zvbb", AV_CPU_FLAG_RV_ZVBB },
302 #elif ARCH_MIPS
303  { "MMI", "mmi", AV_CPU_FLAG_MMI },
304  { "MSA", "msa", AV_CPU_FLAG_MSA },
305 #elif ARCH_X86
306  { "MMX", "mmx", AV_CPU_FLAG_MMX|AV_CPU_FLAG_CMOV },
307  { "MMXEXT", "mmxext", AV_CPU_FLAG_MMXEXT },
308  { "3DNOW", "3dnow", AV_CPU_FLAG_3DNOW },
309  { "3DNOWEXT", "3dnowext", AV_CPU_FLAG_3DNOWEXT },
310  { "SSE", "sse", AV_CPU_FLAG_SSE },
311  { "SSE2", "sse2", AV_CPU_FLAG_SSE2|AV_CPU_FLAG_SSE2SLOW },
312  { "SSE3", "sse3", AV_CPU_FLAG_SSE3|AV_CPU_FLAG_SSE3SLOW },
313  { "SSSE3", "ssse3", AV_CPU_FLAG_SSSE3|AV_CPU_FLAG_ATOM },
314  { "SSE4.1", "sse4", AV_CPU_FLAG_SSE4 },
315  { "SSE4.2", "sse42", AV_CPU_FLAG_SSE42 },
316  { "AES-NI", "aesni", AV_CPU_FLAG_AESNI },
317  { "AVX", "avx", AV_CPU_FLAG_AVX },
318  { "XOP", "xop", AV_CPU_FLAG_XOP },
319  { "FMA3", "fma3", AV_CPU_FLAG_FMA3 },
320  { "FMA4", "fma4", AV_CPU_FLAG_FMA4 },
321  { "AVX2", "avx2", AV_CPU_FLAG_AVX2 },
322  { "AVX-512", "avx512", AV_CPU_FLAG_AVX512 },
323  { "AVX-512ICL", "avx512icl", AV_CPU_FLAG_AVX512ICL },
324 #elif ARCH_LOONGARCH
325  { "LSX", "lsx", AV_CPU_FLAG_LSX },
326  { "LASX", "lasx", AV_CPU_FLAG_LASX },
327 #endif
328  { NULL }
329 };
330 
331 typedef struct CheckasmFuncVersion {
333  void *func;
334  int ok;
335  int cpu;
338 
339 /* Binary search tree node */
340 typedef struct CheckasmFunc {
341  struct CheckasmFunc *child[2];
343  uint8_t color; /* 0 = red, 1 = black */
344  char name[1];
345 } CheckasmFunc;
346 
347 /* Internal state */
348 static struct {
352  const char *current_test_name;
353  const char *bench_pattern;
357 
358  /* perf */
359  int nop_time;
360  int sysfd;
361 
362  int cpu_flag;
363  const char *cpu_flag_name;
364  const char *test_name;
365  int verbose;
366  volatile sig_atomic_t catch_signals;
367 } state;
368 
369 /* PRNG state */
371 
372 /* float compare support code */
373 static int is_negative(union av_intfloat32 u)
374 {
375  return u.i >> 31;
376 }
377 
378 int float_near_ulp(float a, float b, unsigned max_ulp)
379 {
380  union av_intfloat32 x, y;
381 
382  x.f = a;
383  y.f = b;
384 
385  if (is_negative(x) != is_negative(y)) {
386  // handle -0.0 == +0.0
387  return a == b;
388  }
389 
390  if (llabs((int64_t)x.i - y.i) <= max_ulp)
391  return 1;
392 
393  return 0;
394 }
395 
396 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
397  unsigned len)
398 {
399  unsigned i;
400 
401  for (i = 0; i < len; i++) {
402  if (!float_near_ulp(a[i], b[i], max_ulp))
403  return 0;
404  }
405  return 1;
406 }
407 
408 int float_near_abs_eps(float a, float b, float eps)
409 {
410  float abs_diff = fabsf(a - b);
411  if (abs_diff < eps)
412  return 1;
413 
414  fprintf(stderr, "test failed comparing %g with %g (abs diff=%g with EPS=%g)\n", a, b, abs_diff, eps);
415 
416  return 0;
417 }
418 
419 int float_near_abs_eps_array(const float *a, const float *b, float eps,
420  unsigned len)
421 {
422  unsigned i;
423 
424  for (i = 0; i < len; i++) {
425  if (!float_near_abs_eps(a[i], b[i], eps))
426  return 0;
427  }
428  return 1;
429 }
430 
431 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp)
432 {
433  return float_near_ulp(a, b, max_ulp) || float_near_abs_eps(a, b, eps);
434 }
435 
436 int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
437  unsigned max_ulp, unsigned len)
438 {
439  unsigned i;
440 
441  for (i = 0; i < len; i++) {
442  if (!float_near_abs_eps_ulp(a[i], b[i], eps, max_ulp))
443  return 0;
444  }
445  return 1;
446 }
447 
448 int double_near_abs_eps(double a, double b, double eps)
449 {
450  double abs_diff = fabs(a - b);
451 
452  return abs_diff < eps;
453 }
454 
455 int double_near_abs_eps_array(const double *a, const double *b, double eps,
456  unsigned len)
457 {
458  unsigned i;
459 
460  for (i = 0; i < len; i++) {
461  if (!double_near_abs_eps(a[i], b[i], eps))
462  return 0;
463  }
464  return 1;
465 }
466 
467 /* Print colored text to stderr if the terminal supports it */
468 static void color_printf(int color, const char *fmt, ...)
469 {
470  static int use_color = -1;
471  va_list arg;
472 
473 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
474  static HANDLE con;
475  static WORD org_attributes;
476 
477  if (use_color < 0) {
478  CONSOLE_SCREEN_BUFFER_INFO con_info;
479  con = GetStdHandle(STD_ERROR_HANDLE);
480  if (con && con != INVALID_HANDLE_VALUE && GetConsoleScreenBufferInfo(con, &con_info)) {
481  org_attributes = con_info.wAttributes;
482  use_color = 1;
483  } else
484  use_color = 0;
485  }
486  if (use_color)
487  SetConsoleTextAttribute(con, (org_attributes & 0xfff0) | (color & 0x0f));
488 #else
489  if (use_color < 0) {
490  const char *term = getenv("TERM");
491  use_color = term && strcmp(term, "dumb") && isatty(2);
492  }
493  if (use_color)
494  fprintf(stderr, "\x1b[%d;3%dm", (color & 0x08) >> 3, color & 0x07);
495 #endif
496 
497  va_start(arg, fmt);
498  vfprintf(stderr, fmt, arg);
499  va_end(arg);
500 
501  if (use_color) {
502 #if HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
503  SetConsoleTextAttribute(con, org_attributes);
504 #else
505  fprintf(stderr, "\x1b[0m");
506 #endif
507  }
508 }
509 
510 /* Deallocate a tree */
512 {
513  if (f) {
514  CheckasmFuncVersion *v = f->versions.next;
515  while (v) {
516  CheckasmFuncVersion *next = v->next;
517  free(v);
518  v = next;
519  }
520 
521  destroy_func_tree(f->child[0]);
522  destroy_func_tree(f->child[1]);
523  free(f);
524  }
525 }
526 
527 /* Allocate a zero-initialized block, clean up and exit on failure */
528 static void *checkasm_malloc(size_t size)
529 {
530  void *ptr = calloc(1, size);
531  if (!ptr) {
532  fprintf(stderr, "checkasm: malloc failed\n");
533  destroy_func_tree(state.funcs);
534  exit(1);
535  }
536  return ptr;
537 }
538 
539 /* Get the suffix of the specified cpu flag */
540 static const char *cpu_suffix(int cpu)
541 {
542  int i = FF_ARRAY_ELEMS(cpus);
543 
544  while (--i >= 0)
545  if (cpu & cpus[i].flag)
546  return cpus[i].suffix;
547 
548  return "c";
549 }
550 
551 static int cmp_nop(const void *a, const void *b)
552 {
553  return *(const uint16_t*)a - *(const uint16_t*)b;
554 }
555 
556 /* Measure the overhead of the timing code (in decicycles) */
557 static int measure_nop_time(void)
558 {
559  uint16_t nops[10000];
560  int i, nop_sum = 0;
561  av_unused const int sysfd = state.sysfd;
562 
563  uint64_t t = 0;
564  for (i = 0; i < 10000; i++) {
565  PERF_START(t);
566  PERF_STOP(t);
567  nops[i] = t;
568  }
569 
570  qsort(nops, 10000, sizeof(uint16_t), cmp_nop);
571  for (i = 2500; i < 7500; i++)
572  nop_sum += nops[i];
573 
574  return nop_sum / 500;
575 }
576 
577 /* Print benchmark results */
579 {
580  if (f) {
581  print_benchs(f->child[0]);
582 
583  /* Only print functions with at least one assembly version */
584  if (f->versions.cpu || f->versions.next) {
585  CheckasmFuncVersion *v = &f->versions;
586  do {
587  CheckasmPerf *p = &v->perf;
588  if (p->iterations) {
589  int decicycles = (10*p->cycles/p->iterations - state.nop_time) / 4;
590  printf("%s_%s: %d.%d\n", f->name, cpu_suffix(v->cpu), decicycles/10, decicycles%10);
591  }
592  } while ((v = v->next));
593  }
594 
595  print_benchs(f->child[1]);
596  }
597 }
598 
599 /* ASCIIbetical sort except preserving natural order for numbers */
600 static int cmp_func_names(const char *a, const char *b)
601 {
602  const char *start = a;
603  int ascii_diff, digit_diff;
604 
605  for (; !(ascii_diff = *(const unsigned char*)a - *(const unsigned char*)b) && *a; a++, b++);
606  for (; av_isdigit(*a) && av_isdigit(*b); a++, b++);
607 
608  if (a > start && av_isdigit(a[-1]) && (digit_diff = av_isdigit(*a) - av_isdigit(*b)))
609  return digit_diff;
610 
611  return ascii_diff;
612 }
613 
614 /* Perform a tree rotation in the specified direction and return the new root */
616 {
617  CheckasmFunc *r = f->child[dir^1];
618  f->child[dir^1] = r->child[dir];
619  r->child[dir] = f;
620  r->color = f->color;
621  f->color = 0;
622  return r;
623 }
624 
625 #define is_red(f) ((f) && !(f)->color)
626 
627 /* Balance a left-leaning red-black tree at the specified node */
628 static void balance_tree(CheckasmFunc **root)
629 {
630  CheckasmFunc *f = *root;
631 
632  if (is_red(f->child[0]) && is_red(f->child[1])) {
633  f->color ^= 1;
634  f->child[0]->color = f->child[1]->color = 1;
635  }
636 
637  if (!is_red(f->child[0]) && is_red(f->child[1]))
638  *root = rotate_tree(f, 0); /* Rotate left */
639  else if (is_red(f->child[0]) && is_red(f->child[0]->child[0]))
640  *root = rotate_tree(f, 1); /* Rotate right */
641 }
642 
643 /* Get a node with the specified name, creating it if it doesn't exist */
644 static CheckasmFunc *get_func(CheckasmFunc **root, const char *name)
645 {
646  CheckasmFunc *f = *root;
647 
648  if (f) {
649  /* Search the tree for a matching node */
650  int cmp = cmp_func_names(name, f->name);
651  if (cmp) {
652  f = get_func(&f->child[cmp > 0], name);
653 
654  /* Rebalance the tree on the way up if a new node was inserted */
655  if (!f->versions.func)
656  balance_tree(root);
657  }
658  } else {
659  /* Allocate and insert a new node into the tree */
660  int name_length = strlen(name);
661  f = *root = checkasm_malloc(sizeof(CheckasmFunc) + name_length);
662  memcpy(f->name, name, name_length + 1);
663  }
664 
665  return f;
666 }
667 
669 
670 /* Crash handling: attempt to catch crashes and handle them
671  * gracefully instead of just aborting abruptly. */
672 #ifdef _WIN32
673 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
674 static LONG NTAPI signal_handler(EXCEPTION_POINTERS *e) {
675  int s;
676 
677  if (!state.catch_signals)
678  return EXCEPTION_CONTINUE_SEARCH;
679 
680  switch (e->ExceptionRecord->ExceptionCode) {
681  case EXCEPTION_FLT_DIVIDE_BY_ZERO:
682  case EXCEPTION_INT_DIVIDE_BY_ZERO:
683  s = SIGFPE;
684  break;
685  case EXCEPTION_ILLEGAL_INSTRUCTION:
686  case EXCEPTION_PRIV_INSTRUCTION:
687  s = SIGILL;
688  break;
689  case EXCEPTION_ACCESS_VIOLATION:
690  case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
691  case EXCEPTION_DATATYPE_MISALIGNMENT:
692  case EXCEPTION_STACK_OVERFLOW:
693  s = SIGSEGV;
694  break;
695  case EXCEPTION_IN_PAGE_ERROR:
696  s = SIGBUS;
697  break;
698  default:
699  return EXCEPTION_CONTINUE_SEARCH;
700  }
701  state.catch_signals = 0;
703  return EXCEPTION_CONTINUE_EXECUTION; /* never reached, but shuts up gcc */
704 }
705 #endif
706 #else
707 static void signal_handler(int s);
708 
709 static const struct sigaction signal_handler_act = {
710  .sa_handler = signal_handler,
711  .sa_flags = SA_RESETHAND,
712 };
713 
714 static void signal_handler(int s) {
715  if (state.catch_signals) {
716  state.catch_signals = 0;
717  sigaction(s, &signal_handler_act, NULL);
719  }
720 }
721 #endif
722 
723 /* Perform tests and benchmarks for the specified cpu flag if supported by the host */
724 static void check_cpu_flag(const char *name, int flag)
725 {
726  int old_cpu_flag = state.cpu_flag;
727 
728  flag |= old_cpu_flag;
729  av_force_cpu_flags(-1);
730  state.cpu_flag = flag & av_get_cpu_flags();
731  av_force_cpu_flags(state.cpu_flag);
732 
733  if (!flag || state.cpu_flag != old_cpu_flag) {
734  int i;
735 
736  state.cpu_flag_name = name;
737  for (i = 0; tests[i].func; i++) {
738  if (state.test_name && strcmp(tests[i].name, state.test_name))
739  continue;
740  state.current_test_name = tests[i].name;
741  tests[i].func();
742  }
743  }
744 }
745 
746 /* Print the name of the current CPU flag, but only do it once */
747 static void print_cpu_name(void)
748 {
749  if (state.cpu_flag_name) {
750  color_printf(COLOR_YELLOW, "%s:\n", state.cpu_flag_name);
751  state.cpu_flag_name = NULL;
752  }
753 }
754 
755 #if CONFIG_LINUX_PERF
756 static int bench_init_linux(void)
757 {
758  struct perf_event_attr attr = {
759  .type = PERF_TYPE_HARDWARE,
760  .size = sizeof(struct perf_event_attr),
761  .config = PERF_COUNT_HW_CPU_CYCLES,
762  .disabled = 1, // start counting only on demand
763  .exclude_kernel = 1,
764  .exclude_hv = 1,
765 #if !ARCH_X86
766  .exclude_guest = 1,
767 #endif
768  };
769 
770  printf("benchmarking with Linux Perf Monitoring API\n");
771 
772  state.sysfd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0);
773  if (state.sysfd == -1) {
774  perror("perf_event_open");
775  return -1;
776  }
777  return 0;
778 }
779 #elif CONFIG_MACOS_KPERF
780 static int bench_init_kperf(void)
781 {
782  ff_kperf_init();
783  return 0;
784 }
785 #else
786 static int bench_init_ffmpeg(void)
787 {
788 #ifdef AV_READ_TIME
789  if (!checkasm_save_context()) {
791  AV_READ_TIME();
793  } else {
794  fprintf(stderr, "checkasm: unable to execute platform specific timer\n");
795  return -1;
796  }
797  printf("benchmarking with native FFmpeg timers\n");
798  return 0;
799 #else
800  fprintf(stderr, "checkasm: --bench is not supported on your system\n");
801  return -1;
802 #endif
803 }
804 #endif
805 
806 static int bench_init(void)
807 {
808 #if CONFIG_LINUX_PERF
809  int ret = bench_init_linux();
810 #elif CONFIG_MACOS_KPERF
811  int ret = bench_init_kperf();
812 #else
813  int ret = bench_init_ffmpeg();
814 #endif
815  if (ret < 0)
816  return ret;
817 
818  state.nop_time = measure_nop_time();
819  printf("nop: %d.%d\n", state.nop_time/10, state.nop_time%10);
820  return 0;
821 }
822 
823 static void bench_uninit(void)
824 {
825 #if CONFIG_LINUX_PERF
826  close(state.sysfd);
827 #endif
828 }
829 
830 static int usage(const char *path)
831 {
832  fprintf(stderr,
833  "Usage: %s [--bench] [--runs=<ptwo>] [--test=<pattern>] [--verbose] [seed]\n",
834  path);
835  return 1;
836 }
837 
838 int main(int argc, char *argv[])
839 {
840  unsigned int seed = av_get_random_seed();
841  int i, ret = 0;
842 
843 #ifdef _WIN32
844 #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
845  AddVectoredExceptionHandler(0, signal_handler);
846 #endif
847 #else
848  sigaction(SIGBUS, &signal_handler_act, NULL);
849  sigaction(SIGFPE, &signal_handler_act, NULL);
850  sigaction(SIGILL, &signal_handler_act, NULL);
851  sigaction(SIGSEGV, &signal_handler_act, NULL);
852 #endif
853 #if HAVE_PRCTL && defined(PR_SET_UNALIGN)
854  prctl(PR_SET_UNALIGN, PR_UNALIGN_SIGBUS);
855 #endif
856 #if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
858  checkasm_checked_call = checkasm_checked_call_vfp;
859 #endif
860 
861  if (!tests[0].func || !cpus[0].flag) {
862  fprintf(stderr, "checkasm: no tests to perform\n");
863  return 0;
864  }
865 
866  for (i = 1; i < argc; i++) {
867  const char *arg = argv[i];
868  unsigned long l;
869  char *end;
870 
871  if (!strncmp(arg, "--bench", 7)) {
872  if (bench_init() < 0)
873  return 1;
874  if (arg[7] == '=') {
875  state.bench_pattern = arg + 8;
876  state.bench_pattern_len = strlen(state.bench_pattern);
877  } else
878  state.bench_pattern = "";
879  } else if (!strncmp(arg, "--test=", 7)) {
880  state.test_name = arg + 7;
881  } else if (!strcmp(arg, "--verbose") || !strcmp(arg, "-v")) {
882  state.verbose = 1;
883  } else if (!strncmp(arg, "--runs=", 7)) {
884  l = strtoul(arg + 7, &end, 10);
885  if (*end == '\0') {
886  if (l > 30) {
887  fprintf(stderr, "checkasm: error: runs exponent must be within the range 0 <= 30\n");
888  usage(argv[0]);
889  }
890  bench_runs = 1U << l;
891  } else {
892  return usage(argv[0]);
893  }
894  } else if ((l = strtoul(arg, &end, 10)) <= UINT_MAX &&
895  *end == '\0') {
896  seed = l;
897  } else {
898  return usage(argv[0]);
899  }
900  }
901 
902  fprintf(stderr, "checkasm: using random seed %u\n", seed);
904 
905  if (state.bench_pattern)
906  fprintf(stderr, "checkasm: bench runs %" PRIu64 " (1 << %i)\n", bench_runs, av_log2(bench_runs));
907 
908  check_cpu_flag(NULL, 0);
909  for (i = 0; cpus[i].flag; i++)
911 
912  if (state.num_failed) {
913  fprintf(stderr, "checkasm: %d of %d tests have failed\n", state.num_failed, state.num_checked);
914  ret = 1;
915  } else {
916  fprintf(stderr, "checkasm: all %d tests passed\n", state.num_checked);
917  if (state.bench_pattern) {
918  print_benchs(state.funcs);
919  }
920  }
921 
922  destroy_func_tree(state.funcs);
923  bench_uninit();
924  return ret;
925 }
926 
927 /* Decide whether or not the specified function needs to be tested and
928  * allocate/initialize data structures if needed. Returns a pointer to a
929  * reference function if the function should be tested, otherwise NULL */
930 void *checkasm_check_func(void *func, const char *name, ...)
931 {
932  char name_buf[256];
933  void *ref = func;
935  int name_length;
936  va_list arg;
937 
938  va_start(arg, name);
939  name_length = vsnprintf(name_buf, sizeof(name_buf), name, arg);
940  va_end(arg);
941 
942  if (!func || name_length <= 0 || name_length >= sizeof(name_buf))
943  return NULL;
944 
945  state.current_func = get_func(&state.funcs, name_buf);
946  state.funcs->color = 1;
947  v = &state.current_func->versions;
948 
949  if (v->func) {
950  CheckasmFuncVersion *prev;
951  do {
952  /* Only test functions that haven't already been tested */
953  if (v->func == func)
954  return NULL;
955 
956  if (v->ok)
957  ref = v->func;
958 
959  prev = v;
960  } while ((v = v->next));
961 
962  v = prev->next = checkasm_malloc(sizeof(CheckasmFuncVersion));
963  }
964 
965  v->func = func;
966  v->ok = 1;
967  v->cpu = state.cpu_flag;
968  state.current_func_ver = v;
969 
970  if (state.cpu_flag)
971  state.num_checked++;
972 
973  return ref;
974 }
975 
976 /* Decide whether or not the current function needs to be benchmarked */
978 {
979  return !state.num_failed && state.bench_pattern &&
980  !strncmp(state.current_func->name, state.bench_pattern, state.bench_pattern_len);
981 }
982 
983 /* Indicate that the current test has failed */
984 void checkasm_fail_func(const char *msg, ...)
985 {
986  if (state.current_func_ver && state.current_func_ver->cpu &&
987  state.current_func_ver->ok)
988  {
989  va_list arg;
990 
991  print_cpu_name();
992  fprintf(stderr, " %s_%s (", state.current_func->name, cpu_suffix(state.current_func_ver->cpu));
993  va_start(arg, msg);
994  vfprintf(stderr, msg, arg);
995  va_end(arg);
996  fprintf(stderr, ")\n");
997 
998  state.current_func_ver->ok = 0;
999  state.num_failed++;
1000  }
1001 }
1002 
1004  state.catch_signals = enabled;
1005 }
1006 
1008  if (s) {
1009 #ifdef __GLIBC__
1010  checkasm_fail_func("fatal signal %d: %s", s, strsignal(s));
1011 #else
1012  checkasm_fail_func(s == SIGFPE ? "fatal arithmetic error" :
1013  s == SIGILL ? "illegal instruction" :
1014  s == SIGBUS ? "bus error" :
1015  "segmentation fault");
1016 #endif
1017  }
1018  return s;
1019 }
1020 
1021 /* Get the benchmark context of the current function */
1023 {
1024  CheckasmPerf *perf = &state.current_func_ver->perf;
1025  memset(perf, 0, sizeof(*perf));
1026  perf->sysfd = state.sysfd;
1027  return perf;
1028 }
1029 
1030 /* Print the outcome of all tests performed since the last time this function was called */
1031 void checkasm_report(const char *name, ...)
1032 {
1033  static int prev_checked, prev_failed, max_length;
1034 
1035  if (state.num_checked > prev_checked) {
1036  int pad_length = max_length + 4;
1037  va_list arg;
1038 
1039  print_cpu_name();
1040  pad_length -= fprintf(stderr, " - %s.", state.current_test_name);
1041  va_start(arg, name);
1042  pad_length -= vfprintf(stderr, name, arg);
1043  va_end(arg);
1044  fprintf(stderr, "%*c", FFMAX(pad_length, 0) + 2, '[');
1045 
1046  if (state.num_failed == prev_failed)
1047  color_printf(COLOR_GREEN, "OK");
1048  else
1049  color_printf(COLOR_RED, "FAILED");
1050  fprintf(stderr, "]\n");
1051 
1052  prev_checked = state.num_checked;
1053  prev_failed = state.num_failed;
1054  } else if (!state.cpu_flag) {
1055  /* Calculate the amount of padding required to make the output vertically aligned */
1056  int length = strlen(state.current_test_name);
1057  va_list arg;
1058 
1059  va_start(arg, name);
1060  length += vsnprintf(NULL, 0, name, arg);
1061  va_end(arg);
1062 
1063  if (length > max_length)
1064  max_length = length;
1065  }
1066 }
1067 
1068 #define DEF_CHECKASM_CHECK_FUNC(type, fmt) \
1069 int checkasm_check_##type(const char *file, int line, \
1070  const type *buf1, ptrdiff_t stride1, \
1071  const type *buf2, ptrdiff_t stride2, \
1072  int w, int h, const char *name) \
1073 { \
1074  int y = 0; \
1075  stride1 /= sizeof(*buf1); \
1076  stride2 /= sizeof(*buf2); \
1077  for (y = 0; y < h; y++) \
1078  if (memcmp(&buf1[y*stride1], &buf2[y*stride2], w*sizeof(*buf1))) \
1079  break; \
1080  if (y == h) \
1081  return 0; \
1082  checkasm_fail_func("%s:%d", file, line); \
1083  if (!state.verbose) \
1084  return 1; \
1085  fprintf(stderr, "%s:\n", name); \
1086  while (h--) { \
1087  for (int x = 0; x < w; x++) \
1088  fprintf(stderr, " " fmt, buf1[x]); \
1089  fprintf(stderr, " "); \
1090  for (int x = 0; x < w; x++) \
1091  fprintf(stderr, " " fmt, buf2[x]); \
1092  fprintf(stderr, " "); \
1093  for (int x = 0; x < w; x++) \
1094  fprintf(stderr, "%c", buf1[x] != buf2[x] ? 'x' : '.'); \
1095  buf1 += stride1; \
1096  buf2 += stride2; \
1097  fprintf(stderr, "\n"); \
1098  } \
1099  return 1; \
1100 }
1101 
1102 DEF_CHECKASM_CHECK_FUNC(uint8_t, "%02x")
1103 DEF_CHECKASM_CHECK_FUNC(uint16_t, "%04x")
1104 DEF_CHECKASM_CHECK_FUNC(uint32_t, "%08x")
1105 DEF_CHECKASM_CHECK_FUNC(int16_t, "%6d")
checkasm_check_nlmeans
void checkasm_check_nlmeans(void)
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AV_CPU_FLAG_VFP
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Disables cpu detection and forces the specified flags.
Definition: cpu.c:75
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SSE3 supported, but usually not faster.
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Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:103
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static const char * cpu_suffix(int cpu)
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int sysfd
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static const struct @433 tests[]
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Vectors of float's *‍/.
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CheckasmFuncVersion
Definition: checkasm.c:331
COLOR_YELLOW
#define COLOR_YELLOW
Definition: checkasm.c:61
nop_time
int nop_time
Definition: checkasm.c:359
CheckasmFuncVersion::perf
CheckasmPerf perf
Definition: checkasm.c:336
s
#define s(width, name)
Definition: cbs_vp9.c:198
checkasm_check_vf_bwdif
void checkasm_check_vf_bwdif(void)
Definition: vf_bwdif.c:72
checkasm_report
void checkasm_report(const char *name,...)
Definition: checkasm.c:1031
get_func
static CheckasmFunc * get_func(CheckasmFunc **root, const char *name)
Definition: checkasm.c:644
checkasm_fail_func
void checkasm_fail_func(const char *msg,...)
Definition: checkasm.c:984
checkasm_check_sw_rgb
void checkasm_check_sw_rgb(void)
Definition: sw_rgb.c:291
checkasm_check_hevc_sao
void checkasm_check_hevc_sao(void)
Definition: hevc_sao.c:141
num_checked
int num_checked
Definition: checkasm.c:355
AV_CPU_FLAG_ARMV6
#define AV_CPU_FLAG_ARMV6
Definition: cpu.h:65
AV_READ_TIME
#define AV_READ_TIME
Definition: timer.h:28
AV_CPU_FLAG_SSE4
#define AV_CPU_FLAG_SSE4
Penryn SSE4.1 functions.
Definition: cpu.h:44
AV_CPU_FLAG_RVB_ADDR
#define AV_CPU_FLAG_RVB_ADDR
Address bit-manipulations.
Definition: cpu.h:92
checkasm_check_hevc_pel
void checkasm_check_hevc_pel(void)
Definition: hevc_pel.c:607
checkasm_set_signal_handler_state
void checkasm_set_signal_handler_state(int enabled)
Definition: checkasm.c:1003
cmp
static av_always_inline int cmp(MpegEncContext *s, const int x, const int y, const int subx, const int suby, const int size, const int h, int ref_index, int src_index, me_cmp_func cmp_func, me_cmp_func chroma_cmp_func, const int flags)
compares a block (either a full macroblock or a partition thereof) against a proposed motion-compensa...
Definition: motion_est.c:262
CheckasmPerf::iterations
int iterations
Definition: checkasm.h:310
CheckasmFuncVersion::ok
int ok
Definition: checkasm.c:334
arg
const char * arg
Definition: jacosubdec.c:67
func
void(* func)(void)
Definition: checkasm.c:84
AV_CPU_FLAG_RVD
#define AV_CPU_FLAG_RVD
D (double precision FP)
Definition: cpu.h:86
fabs
static __device__ float fabs(float a)
Definition: cuda_runtime.h:182
NULL
#define NULL
Definition: coverity.c:32
measure_nop_time
static int measure_nop_time(void)
Definition: checkasm.c:557
checkasm_check_takdsp
void checkasm_check_takdsp(void)
Definition: takdsp.c:145
double_near_abs_eps_array
int double_near_abs_eps_array(const double *a, const double *b, double eps, unsigned len)
Definition: checkasm.c:455
AV_CPU_FLAG_LASX
#define AV_CPU_FLAG_LASX
Definition: cpu.h:81
AV_CPU_FLAG_AVX512ICL
#define AV_CPU_FLAG_AVX512ICL
F/CD/BW/DQ/VL/VNNI/IFMA/VBMI/VBMI2/VPOPCNTDQ/BITALG/GFNI/VAES/VPCLMULQDQ.
Definition: cpu.h:57
checkasm_check_fmtconvert
void checkasm_check_fmtconvert(void)
Definition: fmtconvert.c:46
checkasm_load_context
#define checkasm_load_context(s)
Definition: checkasm.h:73
AV_CPU_FLAG_MSA
#define AV_CPU_FLAG_MSA
Definition: cpu.h:77
checkasm_save_context
#define checkasm_save_context()
Definition: checkasm.h:72
COLOR_GREEN
#define COLOR_GREEN
Definition: checkasm.c:60
checkasm_check_aacencdsp
void checkasm_check_aacencdsp(void)
Definition: aacencdsp.c:100
checkasm_check_vorbisdsp
void checkasm_check_vorbisdsp(void)
Definition: vorbisdsp.c:76
cpu.h
av_intfloat32
Definition: intfloat.h:27
AV_CPU_FLAG_CMOV
#define AV_CPU_FLAG_CMOV
supports cmov instruction
Definition: cpu.h:51
seed
static unsigned int seed
Definition: videogen.c:78
AV_CPU_FLAG_ALTIVEC
#define AV_CPU_FLAG_ALTIVEC
standard
Definition: cpu.h:60
checkasm_check_rv40dsp
void checkasm_check_rv40dsp(void)
Definition: rv40dsp.c:71
print_benchs
static void print_benchs(CheckasmFunc *f)
Definition: checkasm.c:578
current_func
CheckasmFunc * current_func
Definition: checkasm.c:350
state
static struct @435 state
AV_CPU_FLAG_I8MM
#define AV_CPU_FLAG_I8MM
Definition: cpu.h:73
checkasm_check_vc1dsp
void checkasm_check_vc1dsp(void)
Definition: vc1dsp.c:476
catch_signals
volatile sig_atomic_t catch_signals
Definition: checkasm.c:366
checkasm_check_h264chroma
void checkasm_check_h264chroma(void)
Definition: h264chroma.c:81
AV_CPU_FLAG_SSE2
#define AV_CPU_FLAG_SSE2
PIV SSE2 functions.
Definition: cpu.h:34
CheckasmFunc::color
uint8_t color
Definition: checkasm.c:343
AVLFG
Context structure for the Lagged Fibonacci PRNG.
Definition: lfg.h:33
f
f
Definition: af_crystalizer.c:121
checkasm_check_llauddsp
void checkasm_check_llauddsp(void)
Definition: llauddsp.c:108
AV_CPU_FLAG_AVX
#define AV_CPU_FLAG_AVX
AVX functions: requires OS support even if YMM registers aren't used.
Definition: cpu.h:47
AV_CPU_FLAG_FMA4
#define AV_CPU_FLAG_FMA4
Bulldozer FMA4 functions.
Definition: cpu.h:50
cpu.h
AV_CPU_FLAG_AVX2
#define AV_CPU_FLAG_AVX2
AVX2 functions: requires OS support even if YMM registers aren't used.
Definition: cpu.h:52
checkasm_check_llviddsp
void checkasm_check_llviddsp(void)
Definition: llviddsp.c:195
checkasm_handle_signal
int checkasm_handle_signal(int s)
Definition: checkasm.c:1007
AV_CPU_FLAG_SSE2SLOW
#define AV_CPU_FLAG_SSE2SLOW
SSE2 supported, but usually not faster.
Definition: cpu.h:35
AV_CPU_FLAG_NEON
#define AV_CPU_FLAG_NEON
Definition: cpu.h:69
size
int size
Definition: twinvq_data.h:10344
DEF_CHECKASM_CHECK_FUNC
#define DEF_CHECKASM_CHECK_FUNC(type, fmt)
Definition: checkasm.c:1068
printf
printf("static const uint8_t my_array[100] = {\n")
sysfd
int sysfd
Definition: checkasm.c:360
have_neon
#define have_neon(flags)
Definition: cpu.h:26
CheckasmFuncVersion::func
void * func
Definition: checkasm.c:333
checkasm_check_h264pred
void checkasm_check_h264pred(void)
Definition: h264pred.c:233
av_isdigit
static av_const int av_isdigit(int c)
Locale-independent conversion of ASCII isdigit.
Definition: avstring.h:202
AV_CPU_FLAG_FMA3
#define AV_CPU_FLAG_FMA3
Haswell FMA3 functions.
Definition: cpu.h:53
a
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:41
ff_kperf_init
void ff_kperf_init(void)
Definition: macos_kperf.c:102
bench_runs
uint64_t bench_runs
Definition: checkasm.c:79
checkasm_check_huffyuvdsp
void checkasm_check_huffyuvdsp(void)
Definition: huffyuvdsp.c:95
float_near_abs_eps_array_ulp
int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps, unsigned max_ulp, unsigned len)
Definition: checkasm.c:436
test_name
const char * test_name
Definition: checkasm.c:364
CheckasmPerf::cycles
uint64_t cycles
Definition: checkasm.h:309
checkasm_get_perf_context
CheckasmPerf * checkasm_get_perf_context(void)
Definition: checkasm.c:1022
checkasm_check_fixed_dsp
void checkasm_check_fixed_dsp(void)
Definition: fixed_dsp.c:133
checkasm_check_colorspace
void checkasm_check_colorspace(void)
Definition: vf_colorspace.c:309
checkasm_check_utvideodsp
void checkasm_check_utvideodsp(void)
Definition: utvideodsp.c:90
is_negative
static int is_negative(union av_intfloat32 u)
Definition: checkasm.c:373
checkasm_check_audiodsp
void checkasm_check_audiodsp(void)
Definition: audiodsp.c:52
checkasm_check_sw_range_convert
void checkasm_check_sw_range_convert(void)
Definition: sw_range_convert.c:124
AV_CPU_FLAG_RV_MISALIGNED
#define AV_CPU_FLAG_RV_MISALIGNED
Fast misaligned accesses.
Definition: cpu.h:94
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:256
checkasm_check_flacdsp
void checkasm_check_flacdsp(void)
Definition: flacdsp.c:155
checkasm_check_func
void * checkasm_check_func(void *func, const char *name,...)
Definition: checkasm.c:930
cpus
static const struct @434 cpus[]
AV_CPU_FLAG_SSE42
#define AV_CPU_FLAG_SSE42
Nehalem SSE4.2 functions.
Definition: cpu.h:45
checkasm_check_idctdsp
void checkasm_check_idctdsp(void)
Definition: idctdsp.c:95
CheckasmFuncVersion::next
struct CheckasmFuncVersion * next
Definition: checkasm.c:332
vsnprintf
#define vsnprintf
Definition: snprintf.h:36
common.h
use_color
static int use_color
Definition: log.c:123
AV_CPU_FLAG_RVV_I32
#define AV_CPU_FLAG_RVV_I32
Vectors of 8/16/32-bit int's *‍/.
Definition: cpu.h:87
checkasm_check_synth_filter
void checkasm_check_synth_filter(void)
Definition: synth_filter.c:47
cmp_func_names
static int cmp_func_names(const char *a, const char *b)
Definition: checkasm.c:600
AV_CPU_FLAG_ARMV8
#define AV_CPU_FLAG_ARMV8
Definition: cpu.h:70
checkasm_check_lpc
void checkasm_check_lpc(void)
Definition: lpc.c:96
len
int len
Definition: vorbis_enc_data.h:426
checkasm_check_g722dsp
void checkasm_check_g722dsp(void)
Definition: g722dsp.c:53
checkasm_check_ac3dsp
void checkasm_check_ac3dsp(void)
Definition: ac3dsp.c:193
PERF_STOP
#define PERF_STOP(t)
Definition: checkasm.h:367
is_red
#define is_red(f)
Definition: checkasm.c:625
AV_CPU_FLAG_ATOM
#define AV_CPU_FLAG_ATOM
Atom processor, some SSSE3 instructions are slower.
Definition: cpu.h:43
have_vfp
#define have_vfp(flags)
Definition: cpu.h:27
checkasm_check_svq1enc
void checkasm_check_svq1enc(void)
Definition: svq1enc.c:63
checkasm_check_vf_hflip
void checkasm_check_vf_hflip(void)
Definition: vf_hflip.c:72
ret
ret
Definition: filter_design.txt:187
checkasm_check_lls
void checkasm_check_lls(void)
Definition: lls.c:80
checkasm_check_blend
void checkasm_check_blend(void)
Definition: vf_blend.c:89
verbose
int verbose
Definition: checkasm.c:365
AV_CPU_FLAG_VFPV3
#define AV_CPU_FLAG_VFPV3
Definition: cpu.h:68
checkasm_check_bswapdsp
void checkasm_check_bswapdsp(void)
Definition: bswapdsp.c:60
checkasm_context_buf
checkasm_context checkasm_context_buf
Definition: checkasm.c:668
U
#define U(x)
Definition: vpx_arith.h:37
AV_CPU_FLAG_ARMV5TE
#define AV_CPU_FLAG_ARMV5TE
Definition: cpu.h:64
AV_CPU_FLAG_MMX
#define AV_CPU_FLAG_MMX
standard MMX
Definition: cpu.h:29
suffix
const char * suffix
Definition: checkasm.c:270
checkasm_malloc
static void * checkasm_malloc(size_t size)
Definition: checkasm.c:528
AV_CPU_FLAG_RVI
#define AV_CPU_FLAG_RVI
I (full GPR bank)
Definition: cpu.h:84
checkasm_check_h264qpel
void checkasm_check_h264qpel(void)
Definition: h264qpel.c:51
random_seed.h
signal_handler
static void signal_handler(int s)
Definition: checkasm.c:714
AV_CPU_FLAG_AESNI
#define AV_CPU_FLAG_AESNI
Advanced Encryption Standard functions.
Definition: cpu.h:46
checkasm_bench_func
int checkasm_bench_func(void)
Definition: checkasm.c:977
AV_CPU_FLAG_POWER8
#define AV_CPU_FLAG_POWER8
ISA 2.07.
Definition: cpu.h:62
cpu_flag_name
const char * cpu_flag_name
Definition: checkasm.c:363
checkasm_check_vf_sobel
void checkasm_check_vf_sobel(void)
Definition: vf_convolution.c:100
AV_CPU_FLAG_SSE
#define AV_CPU_FLAG_SSE
SSE functions.
Definition: cpu.h:33
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:112
float_near_ulp_array
int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp, unsigned len)
Definition: checkasm.c:396
signal_handler_act
static const struct sigaction signal_handler_act
Definition: checkasm.c:709
AV_CPU_FLAG_MMXEXT
#define AV_CPU_FLAG_MMXEXT
SSE integer functions or AMD MMX ext.
Definition: cpu.h:30
checkasm_check_av_tx
void checkasm_check_av_tx(void)
Definition: av_tx.c:102
av_intfloat32::f
float f
Definition: intfloat.h:29
flag
int flag
Definition: checkasm.c:271
checkasm_check_v210enc
void checkasm_check_v210enc(void)
Definition: v210enc.c:84
checkasm_check_sbrdsp
void checkasm_check_sbrdsp(void)
Definition: sbrdsp.c:257
checkasm_check_hevc_deblock
void checkasm_check_hevc_deblock(void)
Definition: hevc_deblock.c:264
usage
static int usage(const char *path)
Definition: checkasm.c:830
AV_CPU_FLAG_VFP_VM
#define AV_CPU_FLAG_VFP_VM
VFPv2 vector mode, deprecated in ARMv7-A and unavailable in various CPUs implementations.
Definition: cpu.h:71
AV_CPU_FLAG_MMI
#define AV_CPU_FLAG_MMI
Definition: cpu.h:76
checkasm_check_jpeg2000dsp
void checkasm_check_jpeg2000dsp(void)
Definition: jpeg2000dsp.c:92
d
d
Definition: ffmpeg_filter.c:424
checkasm_check_hevc_add_res
void checkasm_check_hevc_add_res(void)
Definition: hevc_add_res.c:87
int32_t
int32_t
Definition: audioconvert.c:56
float_near_ulp
int float_near_ulp(float a, float b, unsigned max_ulp)
Definition: checkasm.c:378
current_func_ver
CheckasmFuncVersion * current_func_ver
Definition: checkasm.c:351
check_cpu_flag
static void check_cpu_flag(const char *name, int flag)
Definition: checkasm.c:724
checkasm_context
sigjmp_buf checkasm_context
Definition: checkasm.h:71
bench_init_ffmpeg
static int bench_init_ffmpeg(void)
Definition: checkasm.c:786
checkasm_check_rv34dsp
void checkasm_check_rv34dsp(void)
Definition: rv34dsp.c:82
CheckasmFunc::versions
CheckasmFuncVersion versions
Definition: checkasm.c:342
isatty
#define isatty(fd)
Definition: checkasm.c:69
AV_CPU_FLAG_RVV_I64
#define AV_CPU_FLAG_RVV_I64
Vectors of 64-bit int's *‍/.
Definition: cpu.h:89
CheckasmFunc::name
char name[1]
Definition: checkasm.c:344
checkasm_check_vvc_alf
void checkasm_check_vvc_alf(void)
Definition: vvc_alf.c:170
av_log2
int av_log2(unsigned v)
Definition: intmath.c:26
checkasm_check_exrdsp
void checkasm_check_exrdsp(void)
Definition: exrdsp.c:77
balance_tree
static void balance_tree(CheckasmFunc **root)
Definition: checkasm.c:628
AV_CPU_FLAG_ARMV6T2
#define AV_CPU_FLAG_ARMV6T2
Definition: cpu.h:66
funcs
CheckasmFunc * funcs
Definition: checkasm.c:349
checkasm_check_opusdsp
void checkasm_check_opusdsp(void)
Definition: opusdsp.c:86