FFmpeg
checkasm.h
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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 #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);
90 void checkasm_check_blend(void);
91 void checkasm_check_blockdsp(void);
92 void checkasm_check_bswapdsp(void);
94 void checkasm_check_colorspace(void);
95 void checkasm_check_dcadsp(void);
96 void checkasm_check_diracdsp(void);
97 void checkasm_check_exrdsp(void);
98 void checkasm_check_fdctdsp(void);
99 void checkasm_check_fixed_dsp(void);
100 void checkasm_check_flacdsp(void);
101 void checkasm_check_float_dsp(void);
102 void checkasm_check_fmtconvert(void);
103 void checkasm_check_g722dsp(void);
104 void checkasm_check_h263dsp(void);
105 void checkasm_check_h264chroma(void);
106 void checkasm_check_h264dsp(void);
107 void checkasm_check_h264pred(void);
108 void checkasm_check_h264qpel(void);
109 void checkasm_check_hevc_add_res(void);
110 void checkasm_check_hevc_deblock(void);
111 void checkasm_check_hevc_idct(void);
112 void checkasm_check_hevc_pel(void);
113 void checkasm_check_hevc_sao(void);
114 void checkasm_check_hpeldsp(void);
115 void checkasm_check_huffyuvdsp(void);
116 void checkasm_check_idctdsp(void);
117 void checkasm_check_idet(void);
118 void checkasm_check_jpeg2000dsp(void);
119 void checkasm_check_llauddsp(void);
120 void checkasm_check_lls(void);
121 void checkasm_check_llviddsp(void);
122 void checkasm_check_llviddspenc(void);
123 void checkasm_check_lpc(void);
124 void checkasm_check_motion(void);
126 void checkasm_check_nlmeans(void);
127 void checkasm_check_opusdsp(void);
128 void checkasm_check_pixblockdsp(void);
129 void checkasm_check_qpeldsp(void);
130 void checkasm_check_sbrdsp(void);
131 void checkasm_check_rv34dsp(void);
132 void checkasm_check_rv40dsp(void);
133 void checkasm_check_scene_sad(void);
134 void checkasm_check_svq1enc(void);
135 void checkasm_check_synth_filter(void);
136 void checkasm_check_sw_gbrp(void);
138 void checkasm_check_sw_rgb(void);
139 void checkasm_check_sw_scale(void);
140 void checkasm_check_sw_yuv2rgb(void);
141 void checkasm_check_sw_yuv2yuv(void);
142 void checkasm_check_sw_ops(void);
143 void checkasm_check_takdsp(void);
144 void checkasm_check_utvideodsp(void);
145 void checkasm_check_v210dec(void);
146 void checkasm_check_v210enc(void);
147 void checkasm_check_vc1dsp(void);
148 void checkasm_check_vf_bwdif(void);
149 void checkasm_check_vf_eq(void);
150 void checkasm_check_vf_gblur(void);
151 void checkasm_check_vf_hflip(void);
152 void checkasm_check_vf_threshold(void);
153 void checkasm_check_vf_sobel(void);
154 void checkasm_check_vp8dsp(void);
155 void checkasm_check_vp9dsp(void);
156 void checkasm_check_videodsp(void);
157 void checkasm_check_vorbisdsp(void);
158 void checkasm_check_vvc_alf(void);
159 void checkasm_check_vvc_mc(void);
160 void checkasm_check_vvc_sao(void);
161 
162 struct CheckasmPerf;
163 
164 void *checkasm_check_func(void *func, const char *name, ...) av_printf_format(2, 3);
165 int checkasm_bench_func(void);
166 int checkasm_fail_func(const char *msg, ...) av_printf_format(1, 2);
168 void checkasm_report(const char *name, ...) av_printf_format(1, 2);
169 void checkasm_set_signal_handler_state(int enabled);
170 int checkasm_handle_signal(int s);
172 
173 /* float compare utilities */
174 int float_near_ulp(float a, float b, unsigned max_ulp);
175 int float_near_abs_eps(float a, float b, float eps);
176 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp);
177 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
178  unsigned len);
179 int float_near_abs_eps_array(const float *a, const float *b, float eps,
180  unsigned len);
181 int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
182  unsigned max_ulp, unsigned len);
183 int double_near_abs_eps(double a, double b, double eps);
184 int double_near_abs_eps_array(const double *a, const double *b, double eps,
185  unsigned len);
186 
187 extern AVLFG checkasm_lfg;
188 #define rnd() av_lfg_get(&checkasm_lfg)
189 
190 av_unused static void *func_ref, *func_new;
191 
192 extern uint64_t bench_runs;
193 
194 /* Decide whether or not the specified function needs to be tested */
195 #define check_func(func, ...) (checkasm_save_context(), func_ref = checkasm_check_func((func_new = func), __VA_ARGS__))
196 
197 /* Declare the function prototype. The first argument is the return value, the remaining
198  * arguments are the function parameters. Naming parameters is optional. */
199 #define declare_func(ret, ...) declare_new(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
200 #define declare_func_float(ret, ...) declare_new_float(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
201 #define declare_func_emms(cpu_flags, ret, ...) declare_new_emms(cpu_flags, ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
202 
203 /* Indicate that the current test has failed */
204 #define fail() checkasm_fail_func("%s:%d", av_basename(__FILE__), __LINE__)
205 
206 /* Print the test outcome */
207 #define report checkasm_report
208 
209 /* Call the reference function */
210 #define call_ref(...)\
211  (checkasm_set_signal_handler_state(1),\
212  ((func_type *)func_ref)(__VA_ARGS__));\
213  checkasm_set_signal_handler_state(0)
214 
215 #if ARCH_X86 && HAVE_X86ASM
216 /* Verifies that clobbered callee-saved registers are properly saved and restored
217  * and that either no MMX registers are touched or emms is issued */
218 void checkasm_checked_call(void *func, ...);
219 /* Verifies that clobbered callee-saved registers are properly saved and restored
220  * and issues emms for asm functions which are not required to do so */
221 void checkasm_checked_call_emms(void *func, ...);
222 /* Verifies that clobbered callee-saved registers are properly saved and restored
223  * but doesn't issue emms. Meant for dsp functions returning float or double */
224 void checkasm_checked_call_float(void *func, ...);
225 
226 #if ARCH_X86_64
227 /* Evil hack: detect incorrect assumptions that 32-bit ints are zero-extended to 64-bit.
228  * This is done by clobbering the stack with junk around the stack pointer and calling the
229  * assembly function through checked_call() with added dummy arguments which forces all
230  * real arguments to be passed on the stack and not in registers. For 32-bit arguments the
231  * upper half of the 64-bit register locations on the stack will now contain junk which will
232  * cause misbehaving functions to either produce incorrect output or segfault. Note that
233  * even though this works extremely well in practice, it's technically not guaranteed
234  * and false negatives is theoretically possible, but there can never be any false positives.
235  */
236 void checkasm_stack_clobber(uint64_t clobber, ...);
237 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
238  = (void *)checkasm_checked_call;
239 #define declare_new_float(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
240  = (void *)checkasm_checked_call_float;
241 #define declare_new_emms(cpu_flags, ret, ...) \
242  ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__) = \
243  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
244  (void *)checkasm_checked_call;
245 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
246 #define call_new(...) (checkasm_set_signal_handler_state(1),\
247  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
248  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
249  checked_call(func_new, 0, 0, 0, 0, 0, __VA_ARGS__));\
250  checkasm_set_signal_handler_state(0)
251 #elif ARCH_X86_32
252 #define declare_new(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call;
253 #define declare_new_float(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call_float;
254 #define declare_new_emms(cpu_flags, ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = \
255  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
256  (void *)checkasm_checked_call;
257 #define call_new(...)\
258  (checkasm_set_signal_handler_state(1),\
259  checked_call(func_new, __VA_ARGS__));\
260  checkasm_set_signal_handler_state(0)
261 #endif
262 #elif ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
263 /* Use a dummy argument, to offset the real parameters by 2, not only 1.
264  * This makes sure that potential 8-byte-alignment of parameters is kept the same
265  * even when the extra parameters have been removed. */
266 void checkasm_checked_call_vfp(void *func, int dummy, ...);
267 void checkasm_checked_call_novfp(void *func, int dummy, ...);
268 extern void (*checkasm_checked_call)(void *func, int dummy, ...);
269 #define declare_new(ret, ...) ret (*checked_call)(void *, int dummy, __VA_ARGS__, \
270  int, int, int, int, int, int, int, int, \
271  int, int, int, int, int, int, int) = (void *)checkasm_checked_call;
272 #define call_new(...) \
273  (checkasm_set_signal_handler_state(1),\
274  checked_call(func_new, 0, __VA_ARGS__, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0));\
275  checkasm_set_signal_handler_state(0)
276 #elif ARCH_AARCH64 && !defined(__APPLE__)
277 void checkasm_stack_clobber(uint64_t clobber, ...);
278 void checkasm_checked_call(void *func, ...);
279 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, int, int, __VA_ARGS__,\
280  int, int, int, int, int, int, int, int,\
281  int, int, int, int, int, int, int)\
282  = (void *)checkasm_checked_call;
283 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
284 #define call_new(...) (checkasm_set_signal_handler_state(1),\
285  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
286  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
287  checked_call(func_new, 0, 0, 0, 0, 0, 0, 0, __VA_ARGS__,\
288  7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0));\
289  checkasm_set_signal_handler_state(0)
290 #elif ARCH_RISCV
291 void checkasm_set_function(void *);
292 void *checkasm_get_wrapper(void);
293 
294 #if HAVE_RV && (__riscv_xlen == 64) && defined (__riscv_d)
295 #define declare_new(ret, ...) \
296  ret (*checked_call)(__VA_ARGS__) = checkasm_get_wrapper();
297 #define call_new(...) \
298  (checkasm_set_signal_handler_state(1),\
299  checkasm_set_function(func_new), checked_call(__VA_ARGS__));\
300  checkasm_set_signal_handler_state(0)
301 #else
302 #define declare_new(ret, ...)
303 #define call_new(...)\
304  (checkasm_set_signal_handler_state(1),\
305  ((func_type *)func_new)(__VA_ARGS__));\
306  checkasm_set_signal_handler_state(0)
307 #endif
308 #else
309 #define declare_new(ret, ...)
310 #define declare_new_float(ret, ...)
311 #define declare_new_emms(cpu_flags, ret, ...)
312 /* Call the function */
313 #define call_new(...)\
314  (checkasm_set_signal_handler_state(1),\
315  ((func_type *)func_new)(__VA_ARGS__));\
316  checkasm_set_signal_handler_state(0)
317 #endif
318 
319 #ifndef declare_new_emms
320 #define declare_new_emms(cpu_flags, ret, ...) declare_new(ret, __VA_ARGS__)
321 #endif
322 #ifndef declare_new_float
323 #define declare_new_float(ret, ...) declare_new(ret, __VA_ARGS__)
324 #endif
325 
326 typedef struct CheckasmPerf {
327  int sysfd;
328  uint64_t cycles;
330 } CheckasmPerf;
331 
332 #if defined(AV_READ_TIME) || CONFIG_LINUX_PERF || CONFIG_MACOS_KPERF
333 
334 #if CONFIG_LINUX_PERF
335 #define PERF_START(t) do { \
336  ioctl(sysfd, PERF_EVENT_IOC_RESET, 0); \
337  ioctl(sysfd, PERF_EVENT_IOC_ENABLE, 0); \
338 } while (0)
339 #define PERF_STOP(t) do { \
340  int ret; \
341  ioctl(sysfd, PERF_EVENT_IOC_DISABLE, 0); \
342  ret = read(sysfd, &t, sizeof(t)); \
343  (void)ret; \
344 } while (0)
345 #elif CONFIG_MACOS_KPERF
346 #define PERF_START(t) t = ff_kperf_cycles()
347 #define PERF_STOP(t) t = ff_kperf_cycles() - t
348 #else
349 #define PERF_START(t) t = AV_READ_TIME()
350 #define PERF_STOP(t) t = AV_READ_TIME() - t
351 #endif
352 
353 #define CALL4(...)\
354  do {\
355  tfunc(__VA_ARGS__); \
356  tfunc(__VA_ARGS__); \
357  tfunc(__VA_ARGS__); \
358  tfunc(__VA_ARGS__); \
359  } while (0)
360 
361 #define CALL16(...)\
362  do {\
363  CALL4(__VA_ARGS__); \
364  CALL4(__VA_ARGS__); \
365  CALL4(__VA_ARGS__); \
366  CALL4(__VA_ARGS__); \
367  } while (0)
368 
369 /* Benchmark the function */
370 #define bench_new(...)\
371  do {\
372  if (checkasm_bench_func()) {\
373  struct CheckasmPerf *perf = checkasm_get_perf_context();\
374  av_unused const int sysfd = perf->sysfd;\
375  func_type *tfunc = func_new;\
376  uint64_t tsum = 0;\
377  uint64_t ti, tcount = 0;\
378  uint64_t t = 0; \
379  const uint64_t truns = FFMAX(bench_runs >> 3, 1);\
380  checkasm_set_signal_handler_state(1);\
381  for (ti = 0; ti < truns; ti++) {\
382  PERF_START(t);\
383  CALL16(__VA_ARGS__);\
384  CALL16(__VA_ARGS__);\
385  PERF_STOP(t);\
386  if (t*tcount <= tsum*4 && ti > 0) {\
387  tsum += t;\
388  tcount++;\
389  }\
390  }\
391  emms_c();\
392  perf->cycles += tsum;\
393  perf->iterations += tcount;\
394  checkasm_set_signal_handler_state(0);\
395  }\
396  } while (0)
397 #else
398 #define bench_new(...) while(0)
399 #define PERF_START(t) while(0)
400 #define PERF_STOP(t) while(0)
401 #endif
402 
403 #define BUF_RECT(type, name, w, h) \
404  LOCAL_ALIGNED_32(type, name##_buf, [((h)+32)*(FFALIGN(w,64)+64) + 64]); \
405  av_unused ptrdiff_t name##_stride = sizeof(type)*(FFALIGN(w,64)+64); \
406  av_unused int name##_buf_h = (h)+32; \
407  type *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
408 
409 #define PIXEL_RECT(name, w, h) \
410  LOCAL_ALIGNED_32(uint8_t, name##_buf, [sizeof(uint16_t) * (((h)+32)*(FFALIGN(w,64)+64) + 64)],); \
411  av_unused ptrdiff_t name##_stride = sizeof(uint16_t) * (FFALIGN(w,64)+64); \
412  av_unused int name##_buf_h = (h)+32; \
413  uint8_t *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
414 
415 #define CLEAR_BUF_RECT(name) \
416  memset(name##_buf, 0x99, name##_stride * name##_buf_h + 64)
417 #define CLEAR_PIXEL_RECT(name) \
418  CLEAR_BUF_RECT(name)
419 
420 #define DECL_CHECKASM_CHECK_FUNC(type) \
421 int checkasm_check_##type(const char *file, int line, \
422  const type *buf1, ptrdiff_t stride1, \
423  const type *buf2, ptrdiff_t stride2, \
424  int w, int h, const char *name, \
425  int align_w, int align_h, \
426  int padding)
427 
428 DECL_CHECKASM_CHECK_FUNC(uint8_t);
429 DECL_CHECKASM_CHECK_FUNC(uint16_t);
430 DECL_CHECKASM_CHECK_FUNC(uint32_t);
431 DECL_CHECKASM_CHECK_FUNC(int16_t);
433 
434 int checkasm_check_float_ulp(const char *file, int line,
435  const float *buf1, ptrdiff_t stride1,
436  const float *buf2, ptrdiff_t stride2,
437  int w, int h, const char *name,
438  unsigned max_ulp, int align_w, int align_h,
439  int padding);
440 
441 #define PASTE(a,b) a ## b
442 #define CONCAT(a,b) PASTE(a,b)
443 
444 #define checkasm_check2(prefix, ...) CONCAT(checkasm_check_, prefix)(__FILE__, __LINE__, __VA_ARGS__)
445 #define checkasm_check(prefix, ...) checkasm_check2(prefix, __VA_ARGS__, 0, 0, 0)
446 /* Check a pointer from BUF_RECT, checking whether there have been
447  * writes outside of the designated area. */
448 #define checkasm_check_padded(...) \
449  checkasm_check2(__VA_ARGS__, 1, 1, 8)
450 /* Check a pointer from BUF_RECT, checking whether there have been
451  * writes outside of the designated area. Allow writing slightly past the
452  * end of the buffer, by aligning w/h to align_w/align_h, and checking
453  * for overwrites outside of that. */
454 #define checkasm_check_padded_align(...) \
455  checkasm_check2(__VA_ARGS__, 8)
456 
457 /* This assumes that there is a local variable named "bit_depth".
458  * For tests that don't have that and only operate on a single
459  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
460 #define checkasm_check_pixel2(buf1, stride1, buf2, stride2, ...) \
461  ((bit_depth > 8) ? \
462  checkasm_check2(uint16_t, (const uint16_t*)buf1, stride1, \
463  (const uint16_t*)buf2, stride2, \
464  __VA_ARGS__) : \
465  checkasm_check2(uint8_t, (const uint8_t*) buf1, stride1, \
466  (const uint8_t*) buf2, stride2, \
467  __VA_ARGS__))
468 #define checkasm_check_pixel(...) \
469  checkasm_check_pixel2(__VA_ARGS__, 0, 0, 0)
470 #define checkasm_check_pixel_padded(...) \
471  checkasm_check_pixel2(__VA_ARGS__, 1, 1, 8)
472 #define checkasm_check_pixel_padded_align(...) \
473  checkasm_check_pixel2(__VA_ARGS__, 8)
474 
475 /* This assumes that there is a local variable named "bit_depth"
476  * and that the type-specific buffers obey the name ## _BITDEPTH
477  * convention.
478  * For tests that don't have that and only operate on a single
479  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
480 #define checkasm_check_dctcoef(buf1, stride1, buf2, stride2, ...) \
481  ((bit_depth > 8) ? \
482  checkasm_check(int32_t, buf1 ## _32, stride1, \
483  buf2 ## _32, stride2, \
484  __VA_ARGS__) : \
485  checkasm_check(int16_t, buf1 ## _16, stride1, \
486  buf2 ## _16, stride2, \
487  __VA_ARGS__))
488 
489 #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:439
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:145
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:1104
b
#define b
Definition: input.c:42
func_ref
static av_unused void * func_ref
Definition: checkasm.h:190
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:327
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:517
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:190
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:500
CheckasmPerf
Definition: checkasm.h:326
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:524
checkasm_get_perf_context
int struct CheckasmPerf * checkasm_get_perf_context(void)
Definition: checkasm.c:1151
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:329
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:1132
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:488
av_printf_format
#define av_printf_format(fmtpos, attrpos)
Definition: attributes.h:175
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:505
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:760
cpu.h
checkasm_check_llviddsp
void checkasm_check_llviddsp(void)
Definition: llviddsp.c:195
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:328
float_near_abs_eps
int float_near_abs_eps(float a, float b, float eps)
Definition: checkasm.c:477
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:132
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_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:1136
DECL_CHECKASM_CHECK_FUNC
#define DECL_CHECKASM_CHECK_FUNC(type)
Definition: checkasm.h:420
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:1295
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
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:447
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:465
checkasm_check_opusdsp
void checkasm_check_opusdsp(void)
Definition: opusdsp.c:86