FFmpeg
checkasm.h
Go to the documentation of this file.
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 #ifndef TESTS_CHECKASM_CHECKASM_H
24 #define TESTS_CHECKASM_CHECKASM_H
25 
26 #include <stdint.h>
27 #include "config.h"
28 
29 #if CONFIG_LINUX_PERF
30 #include <unistd.h> // read(3)
31 #include <sys/ioctl.h>
32 #include <asm/unistd.h>
33 #include <linux/perf_event.h>
34 #elif CONFIG_MACOS_KPERF
35 #include "libavutil/macos_kperf.h"
36 #endif
37 
38 #include "libavutil/avstring.h"
39 #include "libavutil/cpu.h"
40 #include "libavutil/emms.h"
41 #include "libavutil/internal.h"
42 #include "libavutil/lfg.h"
43 #include "libavutil/timer.h"
44 
45 #ifdef _WIN32
46 #include <windows.h>
47 #if ARCH_X86_32
48 #include <setjmp.h>
49 typedef jmp_buf checkasm_context;
50 #define checkasm_save_context() checkasm_handle_signal(setjmp(checkasm_context_buf))
51 #define checkasm_load_context(s) longjmp(checkasm_context_buf, s)
52 #elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
53 /* setjmp/longjmp on Windows on architectures using SEH (all except x86_32)
54  * will try to use SEH to unwind the stack, which doesn't work for assembly
55  * functions without unwind information. */
56 typedef struct { CONTEXT c; int status; } checkasm_context;
57 #define checkasm_save_context() \
58  (checkasm_context_buf.status = 0, \
59  RtlCaptureContext(&checkasm_context_buf.c), \
60  checkasm_handle_signal(checkasm_context_buf.status))
61 #define checkasm_load_context(s) \
62  (checkasm_context_buf.status = s, \
63  RtlRestoreContext(&checkasm_context_buf.c, NULL))
64 #else
65 #define checkasm_context void*
66 #define checkasm_save_context() 0
67 #define checkasm_load_context() do {} while (0)
68 #endif
69 #elif defined(_WASI_EMULATED_SIGNAL)
70 #define checkasm_context void*
71 #define checkasm_save_context() 0
72 #define checkasm_load_context() do {} while (0)
73 #else
74 #include <setjmp.h>
75 typedef sigjmp_buf checkasm_context;
76 #define checkasm_save_context() checkasm_handle_signal(sigsetjmp(checkasm_context_buf, 1))
77 #define checkasm_load_context(s) siglongjmp(checkasm_context_buf, s)
78 #endif
79 
80 void checkasm_check_aacencdsp(void);
81 void checkasm_check_aacpsdsp(void);
82 void checkasm_check_ac3dsp(void);
83 void checkasm_check_aes(void);
84 void checkasm_check_afir(void);
85 void checkasm_check_alacdsp(void);
86 void checkasm_check_apv_dsp(void);
87 void checkasm_check_audiodsp(void);
88 void checkasm_check_av_tx(void);
89 void checkasm_check_blackdetect(void);
90 void checkasm_check_blend(void);
91 void checkasm_check_blockdsp(void);
92 void checkasm_check_bswapdsp(void);
93 void checkasm_check_cavsdsp(void);
94 void checkasm_check_colordetect(void);
95 void checkasm_check_colorspace(void);
96 void checkasm_check_dcadsp(void);
97 void checkasm_check_diracdsp(void);
98 void checkasm_check_exrdsp(void);
99 void checkasm_check_fdctdsp(void);
100 void checkasm_check_fixed_dsp(void);
101 void checkasm_check_flacdsp(void);
102 void checkasm_check_float_dsp(void);
103 void checkasm_check_fmtconvert(void);
104 void checkasm_check_g722dsp(void);
105 void checkasm_check_h263dsp(void);
106 void checkasm_check_h264chroma(void);
107 void checkasm_check_h264dsp(void);
108 void checkasm_check_h264pred(void);
109 void checkasm_check_h264qpel(void);
110 void checkasm_check_hevc_add_res(void);
111 void checkasm_check_hevc_deblock(void);
112 void checkasm_check_hevc_idct(void);
113 void checkasm_check_hevc_pel(void);
114 void checkasm_check_hevc_sao(void);
115 void checkasm_check_hpeldsp(void);
116 void checkasm_check_huffyuvdsp(void);
117 void checkasm_check_idctdsp(void);
118 void checkasm_check_idet(void);
119 void checkasm_check_jpeg2000dsp(void);
120 void checkasm_check_llauddsp(void);
121 void checkasm_check_lls(void);
122 void checkasm_check_llviddsp(void);
123 void checkasm_check_llviddspenc(void);
124 void checkasm_check_lpc(void);
125 void checkasm_check_motion(void);
126 void checkasm_check_mpegvideoencdsp(void);
127 void checkasm_check_nlmeans(void);
128 void checkasm_check_opusdsp(void);
129 void checkasm_check_pixblockdsp(void);
130 void checkasm_check_qpeldsp(void);
131 void checkasm_check_sbrdsp(void);
132 void checkasm_check_rv34dsp(void);
133 void checkasm_check_rv40dsp(void);
134 void checkasm_check_scene_sad(void);
135 void checkasm_check_svq1enc(void);
136 void checkasm_check_synth_filter(void);
137 void checkasm_check_sw_gbrp(void);
138 void checkasm_check_sw_range_convert(void);
139 void checkasm_check_sw_rgb(void);
140 void checkasm_check_sw_scale(void);
141 void checkasm_check_sw_yuv2rgb(void);
142 void checkasm_check_sw_yuv2yuv(void);
143 void checkasm_check_sw_ops(void);
144 void checkasm_check_takdsp(void);
145 void checkasm_check_utvideodsp(void);
146 void checkasm_check_v210dec(void);
147 void checkasm_check_v210enc(void);
148 void checkasm_check_vc1dsp(void);
149 void checkasm_check_vf_bwdif(void);
150 void checkasm_check_vf_eq(void);
151 void checkasm_check_vf_fspp(void);
152 void checkasm_check_vf_gblur(void);
153 void checkasm_check_vf_hflip(void);
154 void checkasm_check_vf_threshold(void);
155 void checkasm_check_vf_sobel(void);
156 void checkasm_check_vp3dsp(void);
157 void checkasm_check_vp8dsp(void);
158 void checkasm_check_vp9dsp(void);
159 void checkasm_check_videodsp(void);
160 void checkasm_check_vorbisdsp(void);
161 void checkasm_check_vvc_alf(void);
162 void checkasm_check_vvc_mc(void);
163 void checkasm_check_vvc_sao(void);
164 
165 struct CheckasmPerf;
166 
167 void *checkasm_check_func(void *func, const char *name, ...) av_printf_format(2, 3);
168 int checkasm_bench_func(void);
169 int checkasm_fail_func(const char *msg, ...) av_printf_format(1, 2);
170 struct CheckasmPerf *checkasm_get_perf_context(void);
171 void checkasm_report(const char *name, ...) av_printf_format(1, 2);
172 void checkasm_set_signal_handler_state(int enabled);
173 int checkasm_handle_signal(int s);
174 extern checkasm_context checkasm_context_buf;
175 
176 /* float compare utilities */
177 int float_near_ulp(float a, float b, unsigned max_ulp);
178 int float_near_abs_eps(float a, float b, float eps);
179 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp);
180 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
181  unsigned len);
182 int float_near_abs_eps_array(const float *a, const float *b, float eps,
183  unsigned len);
184 int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
185  unsigned max_ulp, unsigned len);
186 int double_near_abs_eps(double a, double b, double eps);
187 int double_near_abs_eps_array(const double *a, const double *b, double eps,
188  unsigned len);
189 
190 extern AVLFG checkasm_lfg;
191 #define rnd() av_lfg_get(&checkasm_lfg)
192 
193 av_unused static void *func_ref, *func_new;
194 
195 extern uint64_t bench_runs;
196 
197 /* Decide whether or not the specified function needs to be tested */
198 #define check_func(func, ...) (checkasm_save_context(), func_ref = checkasm_check_func((func_new = func), __VA_ARGS__))
199 
200 /* Declare the function prototype. The first argument is the return value, the remaining
201  * arguments are the function parameters. Naming parameters is optional. */
202 #define declare_func(ret, ...) declare_new(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
203 #define declare_func_float(ret, ...) declare_new_float(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
204 #define declare_func_emms(cpu_flags, ret, ...) declare_new_emms(cpu_flags, ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
205 
206 /* Indicate that the current test has failed */
207 #define fail() checkasm_fail_func("%s:%d", av_basename(__FILE__), __LINE__)
208 
209 /* Print the test outcome */
210 #define report checkasm_report
211 
212 /* Call the reference function */
213 #define call_ref(...)\
214  (checkasm_set_signal_handler_state(1),\
215  ((func_type *)func_ref)(__VA_ARGS__));\
216  checkasm_set_signal_handler_state(0)
217 
218 #if ARCH_X86 && HAVE_X86ASM
219 /* Verifies that clobbered callee-saved registers are properly saved and restored
220  * and that either no MMX registers are touched or emms is issued */
221 void checkasm_checked_call(void *func, ...);
222 /* Verifies that clobbered callee-saved registers are properly saved and restored
223  * and issues emms for asm functions which are not required to do so */
224 void checkasm_checked_call_emms(void *func, ...);
225 /* Verifies that clobbered callee-saved registers are properly saved and restored
226  * but doesn't issue emms. Meant for dsp functions returning float or double */
227 void checkasm_checked_call_float(void *func, ...);
228 
229 #if ARCH_X86_64
230 /* Evil hack: detect incorrect assumptions that 32-bit ints are zero-extended to 64-bit.
231  * This is done by clobbering the stack with junk around the stack pointer and calling the
232  * assembly function through checked_call() with added dummy arguments which forces all
233  * real arguments to be passed on the stack and not in registers. For 32-bit arguments the
234  * upper half of the 64-bit register locations on the stack will now contain junk which will
235  * cause misbehaving functions to either produce incorrect output or segfault. Note that
236  * even though this works extremely well in practice, it's technically not guaranteed
237  * and false negatives is theoretically possible, but there can never be any false positives.
238  */
239 void checkasm_stack_clobber(uint64_t clobber, ...);
240 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
241  = (void *)checkasm_checked_call;
242 #define declare_new_float(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
243  = (void *)checkasm_checked_call_float;
244 #define declare_new_emms(cpu_flags, ret, ...) \
245  ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__) = \
246  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
247  (void *)checkasm_checked_call;
248 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
249 #define call_new(...) (checkasm_set_signal_handler_state(1),\
250  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
251  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
252  checked_call(func_new, 0, 0, 0, 0, 0, __VA_ARGS__));\
253  checkasm_set_signal_handler_state(0)
254 #elif ARCH_X86_32
255 #define declare_new(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call;
256 #define declare_new_float(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call_float;
257 #define declare_new_emms(cpu_flags, ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = \
258  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
259  (void *)checkasm_checked_call;
260 #define call_new(...)\
261  (checkasm_set_signal_handler_state(1),\
262  checked_call(func_new, __VA_ARGS__));\
263  checkasm_set_signal_handler_state(0)
264 #endif
265 #elif ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
266 /* Use a dummy argument, to offset the real parameters by 2, not only 1.
267  * This makes sure that potential 8-byte-alignment of parameters is kept the same
268  * even when the extra parameters have been removed. */
269 void checkasm_checked_call_vfp(void *func, int dummy, ...);
270 void checkasm_checked_call_novfp(void *func, int dummy, ...);
271 extern void (*checkasm_checked_call)(void *func, int dummy, ...);
272 #define declare_new(ret, ...) ret (*checked_call)(void *, int dummy, __VA_ARGS__, \
273  int, int, int, int, int, int, int, int, \
274  int, int, int, int, int, int, int) = (void *)checkasm_checked_call;
275 #define call_new(...) \
276  (checkasm_set_signal_handler_state(1),\
277  checked_call(func_new, 0, __VA_ARGS__, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0));\
278  checkasm_set_signal_handler_state(0)
279 #elif ARCH_AARCH64 && !defined(__APPLE__)
280 void checkasm_stack_clobber(uint64_t clobber, ...);
281 void checkasm_checked_call(void *func, ...);
282 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, int, int, __VA_ARGS__,\
283  int, int, int, int, int, int, int, int,\
284  int, int, int, int, int, int, int)\
285  = (void *)checkasm_checked_call;
286 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
287 #define call_new(...) (checkasm_set_signal_handler_state(1),\
288  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
289  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
290  checked_call(func_new, 0, 0, 0, 0, 0, 0, 0, __VA_ARGS__,\
291  7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0));\
292  checkasm_set_signal_handler_state(0)
293 #elif ARCH_RISCV
294 void checkasm_set_function(void *);
295 void *checkasm_get_wrapper(void);
296 
297 #if HAVE_RV && (__riscv_xlen == 64) && defined (__riscv_d)
298 #define declare_new(ret, ...) \
299  ret (*checked_call)(__VA_ARGS__) = checkasm_get_wrapper();
300 #define call_new(...) \
301  (checkasm_set_signal_handler_state(1),\
302  checkasm_set_function(func_new), checked_call(__VA_ARGS__));\
303  checkasm_set_signal_handler_state(0)
304 #else
305 #define declare_new(ret, ...)
306 #define call_new(...)\
307  (checkasm_set_signal_handler_state(1),\
308  ((func_type *)func_new)(__VA_ARGS__));\
309  checkasm_set_signal_handler_state(0)
310 #endif
311 #else
312 #define declare_new(ret, ...)
313 #define declare_new_float(ret, ...)
314 #define declare_new_emms(cpu_flags, ret, ...)
315 /* Call the function */
316 #define call_new(...)\
317  (checkasm_set_signal_handler_state(1),\
318  ((func_type *)func_new)(__VA_ARGS__));\
319  checkasm_set_signal_handler_state(0)
320 #endif
321 
322 #ifndef declare_new_emms
323 #define declare_new_emms(cpu_flags, ret, ...) declare_new(ret, __VA_ARGS__)
324 #endif
325 #ifndef declare_new_float
326 #define declare_new_float(ret, ...) declare_new(ret, __VA_ARGS__)
327 #endif
328 
329 typedef struct CheckasmPerf {
330  int sysfd;
331  uint64_t cycles;
332  int iterations;
333 } CheckasmPerf;
334 
335 #if defined(AV_READ_TIME) || CONFIG_LINUX_PERF || CONFIG_MACOS_KPERF
336 
337 #if CONFIG_LINUX_PERF
338 #define PERF_START(t) do { \
339  ioctl(sysfd, PERF_EVENT_IOC_RESET, 0); \
340  ioctl(sysfd, PERF_EVENT_IOC_ENABLE, 0); \
341 } while (0)
342 #define PERF_STOP(t) do { \
343  int ret; \
344  ioctl(sysfd, PERF_EVENT_IOC_DISABLE, 0); \
345  ret = read(sysfd, &t, sizeof(t)); \
346  (void)ret; \
347 } while (0)
348 #elif CONFIG_MACOS_KPERF
349 #define PERF_START(t) t = ff_kperf_cycles()
350 #define PERF_STOP(t) t = ff_kperf_cycles() - t
351 #else
352 #define PERF_START(t) t = AV_READ_TIME()
353 #define PERF_STOP(t) t = AV_READ_TIME() - t
354 #endif
355 
356 #define CALL4(...)\
357  do {\
358  tfunc(__VA_ARGS__); \
359  tfunc(__VA_ARGS__); \
360  tfunc(__VA_ARGS__); \
361  tfunc(__VA_ARGS__); \
362  } while (0)
363 
364 #define CALL16(...)\
365  do {\
366  CALL4(__VA_ARGS__); \
367  CALL4(__VA_ARGS__); \
368  CALL4(__VA_ARGS__); \
369  CALL4(__VA_ARGS__); \
370  } while (0)
371 
372 /* Benchmark the function */
373 #define bench_new(...)\
374  do {\
375  if (checkasm_bench_func()) {\
376  struct CheckasmPerf *perf = checkasm_get_perf_context();\
377  av_unused const int sysfd = perf->sysfd;\
378  func_type *tfunc = func_new;\
379  uint64_t tsum = 0;\
380  uint64_t ti, tcount = 0;\
381  uint64_t t = 0; \
382  const uint64_t truns = FFMAX(bench_runs >> 3, 1);\
383  checkasm_set_signal_handler_state(1);\
384  for (ti = 0; ti < truns; ti++) {\
385  PERF_START(t);\
386  CALL16(__VA_ARGS__);\
387  CALL16(__VA_ARGS__);\
388  PERF_STOP(t);\
389  if (t*tcount <= tsum*4 && ti > 0) {\
390  tsum += t;\
391  tcount++;\
392  }\
393  }\
394  emms_c();\
395  perf->cycles += tsum;\
396  perf->iterations += tcount;\
397  checkasm_set_signal_handler_state(0);\
398  }\
399  } while (0)
400 #else
401 #define bench_new(...) while(0)
402 #define PERF_START(t) while(0)
403 #define PERF_STOP(t) while(0)
404 #endif
405 
406 #define BUF_RECT(type, name, w, h) \
407  LOCAL_ALIGNED_32(type, name##_buf, [((h)+32)*(FFALIGN(w,64)+64) + 64]); \
408  av_unused ptrdiff_t name##_stride = sizeof(type)*(FFALIGN(w,64)+64); \
409  av_unused int name##_buf_h = (h)+32; \
410  type *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
411 
412 #define PIXEL_RECT(name, w, h) \
413  LOCAL_ALIGNED_32(uint8_t, name##_buf, [sizeof(uint16_t) * (((h)+32)*(FFALIGN(w,64)+64) + 64)],); \
414  av_unused ptrdiff_t name##_stride = sizeof(uint16_t) * (FFALIGN(w,64)+64); \
415  av_unused int name##_buf_h = (h)+32; \
416  uint8_t *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
417 
418 #define CLEAR_BUF_RECT(name) \
419  memset(name##_buf, 0x99, name##_stride * name##_buf_h + 64)
420 #define CLEAR_PIXEL_RECT(name) \
421  CLEAR_BUF_RECT(name)
422 
423 #define DECL_CHECKASM_CHECK_FUNC(type) \
424 int checkasm_check_##type(const char *file, int line, \
425  const type *buf1, ptrdiff_t stride1, \
426  const type *buf2, ptrdiff_t stride2, \
427  int w, int h, const char *name, \
428  int align_w, int align_h, \
429  int padding)
430 
431 DECL_CHECKASM_CHECK_FUNC(uint8_t);
432 DECL_CHECKASM_CHECK_FUNC(uint16_t);
433 DECL_CHECKASM_CHECK_FUNC(uint32_t);
434 DECL_CHECKASM_CHECK_FUNC(int16_t);
435 DECL_CHECKASM_CHECK_FUNC(int32_t);
436 
437 int checkasm_check_float_ulp(const char *file, int line,
438  const float *buf1, ptrdiff_t stride1,
439  const float *buf2, ptrdiff_t stride2,
440  int w, int h, const char *name,
441  unsigned max_ulp, int align_w, int align_h,
442  int padding);
443 
444 #define PASTE(a,b) a ## b
445 #define CONCAT(a,b) PASTE(a,b)
446 
447 #define checkasm_check2(prefix, ...) CONCAT(checkasm_check_, prefix)(__FILE__, __LINE__, __VA_ARGS__)
448 #define checkasm_check(prefix, ...) checkasm_check2(prefix, __VA_ARGS__, 0, 0, 0)
449 /* Check a pointer from BUF_RECT, checking whether there have been
450  * writes outside of the designated area. */
451 #define checkasm_check_padded(...) \
452  checkasm_check2(__VA_ARGS__, 1, 1, 8)
453 /* Check a pointer from BUF_RECT, checking whether there have been
454  * writes outside of the designated area. Allow writing slightly past the
455  * end of the buffer, by aligning w/h to align_w/align_h, and checking
456  * for overwrites outside of that. */
457 #define checkasm_check_padded_align(...) \
458  checkasm_check2(__VA_ARGS__, 8)
459 
460 /* This assumes that there is a local variable named "bit_depth".
461  * For tests that don't have that and only operate on a single
462  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
463 #define checkasm_check_pixel2(buf1, stride1, buf2, stride2, ...) \
464  ((bit_depth > 8) ? \
465  checkasm_check2(uint16_t, (const uint16_t*)buf1, stride1, \
466  (const uint16_t*)buf2, stride2, \
467  __VA_ARGS__) : \
468  checkasm_check2(uint8_t, (const uint8_t*) buf1, stride1, \
469  (const uint8_t*) buf2, stride2, \
470  __VA_ARGS__))
471 #define checkasm_check_pixel(...) \
472  checkasm_check_pixel2(__VA_ARGS__, 0, 0, 0)
473 #define checkasm_check_pixel_padded(...) \
474  checkasm_check_pixel2(__VA_ARGS__, 1, 1, 8)
475 #define checkasm_check_pixel_padded_align(...) \
476  checkasm_check_pixel2(__VA_ARGS__, 8)
477 
478 /* This assumes that there is a local variable named "bit_depth"
479  * and that the type-specific buffers obey the name ## _BITDEPTH
480  * convention.
481  * For tests that don't have that and only operate on a single
482  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
483 #define checkasm_check_dctcoef(buf1, stride1, buf2, stride2, ...) \
484  ((bit_depth > 8) ? \
485  checkasm_check(int32_t, buf1 ## _32, stride1, \
486  buf2 ## _32, stride2, \
487  __VA_ARGS__) : \
488  checkasm_check(int16_t, buf1 ## _16, stride1, \
489  buf2 ## _16, stride2, \
490  __VA_ARGS__))
491 
492 #endif /* TESTS_CHECKASM_CHECKASM_H */
checkasm_check_nlmeans
void checkasm_check_nlmeans(void)
Definition: vf_nlmeans.c:32
func
int(* func)(AVBPrint *dst, const char *in, const char *arg)
Definition: jacosubdec.c:68
checkasm_lfg
AVLFG checkasm_lfg
Definition: checkasm.c:448
checkasm_check_sw_gbrp
void checkasm_check_sw_gbrp(void)
Definition: sw_gbrp.c:398
checkasm_check_vp8dsp
void checkasm_check_vp8dsp(void)
Definition: vp8dsp.c:511
checkasm_check_idet
void checkasm_check_idet(void)
Definition: vf_idet.c:58
name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
checkasm_check_fdctdsp
void checkasm_check_fdctdsp(void)
Definition: fdctdsp.c:67
checkasm_check_videodsp
void checkasm_check_videodsp(void)
Definition: videodsp.c:80
checkasm_check_vf_eq
void checkasm_check_vf_eq(void)
Definition: vf_eq.c:76
checkasm_check_dcadsp
void checkasm_check_dcadsp(void)
Definition: dcadsp.c:89
checkasm_check_v210dec
void checkasm_check_v210dec(void)
Definition: v210dec.c:47
checkasm_check_sw_yuv2yuv
void checkasm_check_sw_yuv2yuv(void)
Definition: sw_yuv2yuv.c:131
checkasm_check_aacencdsp
void checkasm_check_aacencdsp(void)
Definition: aacencdsp.c:100
av_unused
#define av_unused
Definition: attributes.h:151
checkasm_check_hevc_idct
void checkasm_check_hevc_idct(void)
Definition: hevc_idct.c:108
checkasm_check_sw_scale
void checkasm_check_sw_scale(void)
Definition: sw_scale.c:460
w
uint8_t w
Definition: llviddspenc.c:38
checkasm_bench_func
void int checkasm_bench_func(void)
Definition: checkasm.c:1113
b
#define b
Definition: input.c:42
func_ref
static av_unused void * func_ref
Definition: checkasm.h:193
checkasm_check_aes
void checkasm_check_aes(void)
Definition: aes.c:28
checkasm_check_aacpsdsp
void checkasm_check_aacpsdsp(void)
Definition: aacpsdsp.c:234
checkasm_check_vvc_sao
void checkasm_check_vvc_sao(void)
Definition: vvc_sao.c:134
checkasm_check_func
void * checkasm_check_func(void *func, const char *name,...) av_printf_format(2
CheckasmPerf::sysfd
int sysfd
Definition: checkasm.h:330
checkasm_check_alacdsp
void checkasm_check_alacdsp(void)
Definition: alacdsp.c:116
checkasm_check_llviddspenc
void checkasm_check_llviddspenc(void)
Definition: llviddspenc.c:104
double_near_abs_eps
int double_near_abs_eps(double a, double b, double eps)
Definition: checkasm.c:526
checkasm_check_h264dsp
void checkasm_check_h264dsp(void)
Definition: h264dsp.c:499
checkasm_check_ac3dsp
void checkasm_check_ac3dsp(void)
Definition: ac3dsp.c:193
checkasm_check_motion
void checkasm_check_motion(void)
Definition: motion.c:137
func_new
static av_unused void * func_new
Definition: checkasm.h:193
checkasm_check_h263dsp
void checkasm_check_h263dsp(void)
Definition: h263dsp.c:54
float_near_abs_eps_ulp
int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp)
Definition: checkasm.c:509
CheckasmPerf
Definition: checkasm.h:329
dummy
int dummy
Definition: motion.c:66
checkasm_check_vp9dsp
void checkasm_check_vp9dsp(void)
Definition: vp9dsp.c:627
checkasm_check_vf_threshold
void checkasm_check_vf_threshold(void)
Definition: vf_threshold.c:79
checkasm_check_vf_gblur
void checkasm_check_vf_gblur(void)
Definition: vf_gblur.c:82
checkasm_check_vvc_mc
void checkasm_check_vvc_mc(void)
Definition: vvc_mc.c:471
checkasm_check_sw_yuv2rgb
void checkasm_check_sw_yuv2rgb(void)
Definition: sw_yuv2rgb.c:233
checkasm_report
void checkasm_report(const char *name,...) av_printf_format(1
checkasm_check_float_dsp
void checkasm_check_float_dsp(void)
Definition: float_dsp.c:297
double_near_abs_eps_array
int double_near_abs_eps_array(const double *a, const double *b, double eps, unsigned len)
Definition: checkasm.c:533
checkasm_get_perf_context
int struct CheckasmPerf * checkasm_get_perf_context(void)
Definition: checkasm.c:1160
checkasm_check_pixblockdsp
void checkasm_check_pixblockdsp(void)
Definition: pixblockdsp.c:82
checkasm_check_bswapdsp
void checkasm_check_bswapdsp(void)
Definition: bswapdsp.c:60
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
lfg.h
checkasm_check_sw_rgb
void checkasm_check_sw_rgb(void)
Definition: sw_rgb.c:804
checkasm_check_hevc_sao
void checkasm_check_hevc_sao(void)
Definition: hevc_sao.c:136
checkasm_check_hevc_pel
void checkasm_check_hevc_pel(void)
Definition: hevc_pel.c:621
checkasm_fail_func
int checkasm_fail_func(const char *msg,...) av_printf_format(1
CheckasmPerf::iterations
int iterations
Definition: checkasm.h:332
checkasm_check_takdsp
void checkasm_check_takdsp(void)
Definition: takdsp.c:145
checkasm_check_sw_ops
void checkasm_check_sw_ops(void)
Definition: sw_ops.c:752
checkasm_check_fmtconvert
void checkasm_check_fmtconvert(void)
Definition: fmtconvert.c:46
checkasm_set_signal_handler_state
void void checkasm_set_signal_handler_state(int enabled)
Definition: checkasm.c:1141
macos_kperf.h
float_near_abs_eps_array
int float_near_abs_eps_array(const float *a, const float *b, float eps, unsigned len)
Definition: checkasm.c:497
av_printf_format
#define av_printf_format(fmtpos, attrpos)
Definition: attributes.h:205
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:514
timer.h
checkasm_check_vorbisdsp
void checkasm_check_vorbisdsp(void)
Definition: vorbisdsp.c:76
checkasm_check_hpeldsp
void checkasm_check_hpeldsp(void)
Definition: hpeldsp.c:54
checkasm_check_rv40dsp
void checkasm_check_rv40dsp(void)
Definition: rv40dsp.c:71
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
checkasm_check_vc1dsp
void checkasm_check_vc1dsp(void)
Definition: vc1dsp.c:476
checkasm_check_h264chroma
void checkasm_check_h264chroma(void)
Definition: h264chroma.c:81
AVLFG
Context structure for the Lagged Fibonacci PRNG.
Definition: lfg.h:33
checkasm_check_llauddsp
void checkasm_check_llauddsp(void)
Definition: llauddsp.c:108
checkasm_context_buf
checkasm_context checkasm_context_buf
Definition: checkasm.c:769
cpu.h
checkasm_check_llviddsp
void checkasm_check_llviddsp(void)
Definition: llviddsp.c:195
checkasm_check_vp3dsp
void checkasm_check_vp3dsp(void)
Definition: vp3dsp.c:113
checkasm_check_diracdsp
void checkasm_check_diracdsp(void)
Definition: diracdsp.c:85
checkasm_check_h264pred
void checkasm_check_h264pred(void)
Definition: h264pred.c:233
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
checkasm_check_huffyuvdsp
void checkasm_check_huffyuvdsp(void)
Definition: huffyuvdsp.c:95
line
Definition: graph2dot.c:48
CheckasmPerf::cycles
uint64_t cycles
Definition: checkasm.h:331
float_near_abs_eps
int float_near_abs_eps(float a, float b, float eps)
Definition: checkasm.c:486
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
emms.h
checkasm_check_sw_range_convert
void checkasm_check_sw_range_convert(void)
Definition: sw_range_convert.c:224
checkasm_check_mpegvideoencdsp
void checkasm_check_mpegvideoencdsp(void)
Definition: mpegvideoencdsp.c:160
checkasm_check_flacdsp
void checkasm_check_flacdsp(void)
Definition: flacdsp.c:155
internal.h
checkasm_check_idctdsp
void checkasm_check_idctdsp(void)
Definition: idctdsp.c:95
checkasm_check_synth_filter
void checkasm_check_synth_filter(void)
Definition: synth_filter.c:47
checkasm_check_av_tx
void checkasm_check_av_tx(void)
Definition: av_tx.c:102
checkasm_check_blockdsp
void checkasm_check_blockdsp(void)
Definition: blockdsp.c:78
checkasm_check_lpc
void checkasm_check_lpc(void)
Definition: lpc.c:96
CONTEXT
#define CONTEXT
Definition: af_asetrate.c:32
len
int len
Definition: vorbis_enc_data.h:426
checkasm_check_g722dsp
void checkasm_check_g722dsp(void)
Definition: g722dsp.c:53
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
checkasm_check_lls
void checkasm_check_lls(void)
Definition: lls.c:84
checkasm_check_scene_sad
void checkasm_check_scene_sad(void)
Definition: scene_sad.c:66
checkasm_check_blend
void checkasm_check_blend(void)
Definition: vf_blend.c:89
checkasm_check_afir
void checkasm_check_afir(void)
Definition: af_afir.c:144
checkasm_check_vf_fspp
void checkasm_check_vf_fspp(void)
Definition: vf_fspp.c:165
checkasm_check_h264qpel
void checkasm_check_h264qpel(void)
Definition: h264qpel.c:51
status
ov_status_e status
Definition: dnn_backend_openvino.c:100
checkasm_check_colordetect
void checkasm_check_colordetect(void)
Definition: vf_colordetect.c:135
checkasm_check_vf_sobel
void checkasm_check_vf_sobel(void)
Definition: vf_convolution.c:100
checkasm_check_qpeldsp
void checkasm_check_qpeldsp(void)
Definition: qpeldsp.c:52
checkasm_check_blackdetect
void checkasm_check_blackdetect(void)
Definition: vf_blackdetect.c:62
checkasm_check_v210enc
void checkasm_check_v210enc(void)
Definition: v210enc.c:83
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
checkasm_handle_signal
int checkasm_handle_signal(int s)
Definition: checkasm.c:1145
DECL_CHECKASM_CHECK_FUNC
#define DECL_CHECKASM_CHECK_FUNC(type)
Definition: checkasm.h:423
checkasm_check_apv_dsp
void checkasm_check_apv_dsp(void)
Definition: apv_dsp.c:96
checkasm_check_jpeg2000dsp
void checkasm_check_jpeg2000dsp(void)
Definition: jpeg2000dsp.c:92
checkasm_check_float_ulp
int checkasm_check_float_ulp(const char *file, int line, const float *buf1, ptrdiff_t stride1, const float *buf2, ptrdiff_t stride2, int w, int h, const char *name, unsigned max_ulp, int align_w, int align_h, int padding)
Definition: checkasm.c:1304
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
checkasm_context
sigjmp_buf checkasm_context
Definition: checkasm.h:75
checkasm_check_rv34dsp
void checkasm_check_rv34dsp(void)
Definition: rv34dsp.c:82
h
h
Definition: vp9dsp_template.c:2070
checkasm_check_cavsdsp
void checkasm_check_cavsdsp(void)
Definition: cavsdsp.c:116
avstring.h
bench_runs
uint64_t bench_runs
Definition: checkasm.c:111
checkasm_check_audiodsp
void checkasm_check_audiodsp(void)
Definition: audiodsp.c:52
float_near_ulp
int float_near_ulp(float a, float b, unsigned max_ulp)
Definition: checkasm.c:456
checkasm_check_vvc_alf
void checkasm_check_vvc_alf(void)
Definition: vvc_alf.c:178
checkasm_check_exrdsp
void checkasm_check_exrdsp(void)
Definition: exrdsp.c:77
float_near_ulp_array
int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp, unsigned len)
Definition: checkasm.c:474
checkasm_check_opusdsp
void checkasm_check_opusdsp(void)
Definition: opusdsp.c:86
Generated on Tue Nov 18 2025 19:23:46 for FFmpeg by   doxygen 1.8.17