FFmpeg
All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Modules Pages
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);
90 void checkasm_check_blend(void);
91 void checkasm_check_blockdsp(void);
92 void checkasm_check_bswapdsp(void);
93 void checkasm_check_colorspace(void);
94 void checkasm_check_diracdsp(void);
95 void checkasm_check_exrdsp(void);
96 void checkasm_check_fdctdsp(void);
97 void checkasm_check_fixed_dsp(void);
98 void checkasm_check_flacdsp(void);
99 void checkasm_check_float_dsp(void);
100 void checkasm_check_fmtconvert(void);
101 void checkasm_check_g722dsp(void);
102 void checkasm_check_h263dsp(void);
103 void checkasm_check_h264chroma(void);
104 void checkasm_check_h264dsp(void);
105 void checkasm_check_h264pred(void);
106 void checkasm_check_h264qpel(void);
107 void checkasm_check_hevc_add_res(void);
108 void checkasm_check_hevc_deblock(void);
109 void checkasm_check_hevc_idct(void);
110 void checkasm_check_hevc_pel(void);
111 void checkasm_check_hevc_sao(void);
112 void checkasm_check_huffyuvdsp(void);
113 void checkasm_check_idctdsp(void);
114 void checkasm_check_jpeg2000dsp(void);
115 void checkasm_check_llauddsp(void);
116 void checkasm_check_lls(void);
117 void checkasm_check_llviddsp(void);
118 void checkasm_check_llviddspenc(void);
119 void checkasm_check_lpc(void);
120 void checkasm_check_motion(void);
122 void checkasm_check_nlmeans(void);
123 void checkasm_check_opusdsp(void);
124 void checkasm_check_pixblockdsp(void);
125 void checkasm_check_sbrdsp(void);
126 void checkasm_check_rv34dsp(void);
127 void checkasm_check_rv40dsp(void);
128 void checkasm_check_scene_sad(void);
129 void checkasm_check_svq1enc(void);
130 void checkasm_check_synth_filter(void);
131 void checkasm_check_sw_gbrp(void);
133 void checkasm_check_sw_rgb(void);
134 void checkasm_check_sw_scale(void);
135 void checkasm_check_sw_yuv2rgb(void);
136 void checkasm_check_sw_yuv2yuv(void);
137 void checkasm_check_takdsp(void);
138 void checkasm_check_utvideodsp(void);
139 void checkasm_check_v210dec(void);
140 void checkasm_check_v210enc(void);
141 void checkasm_check_vc1dsp(void);
142 void checkasm_check_vf_bwdif(void);
143 void checkasm_check_vf_eq(void);
144 void checkasm_check_vf_gblur(void);
145 void checkasm_check_vf_hflip(void);
146 void checkasm_check_vf_threshold(void);
147 void checkasm_check_vf_sobel(void);
148 void checkasm_check_vp8dsp(void);
149 void checkasm_check_vp9dsp(void);
150 void checkasm_check_videodsp(void);
151 void checkasm_check_vorbisdsp(void);
152 void checkasm_check_vvc_alf(void);
153 void checkasm_check_vvc_mc(void);
154 void checkasm_check_vvc_sao(void);
155 
156 struct CheckasmPerf;
157 
158 void *checkasm_check_func(void *func, const char *name, ...) av_printf_format(2, 3);
159 int checkasm_bench_func(void);
160 int checkasm_fail_func(const char *msg, ...) av_printf_format(1, 2);
162 void checkasm_report(const char *name, ...) av_printf_format(1, 2);
163 void checkasm_set_signal_handler_state(int enabled);
164 int checkasm_handle_signal(int s);
166 
167 /* float compare utilities */
168 int float_near_ulp(float a, float b, unsigned max_ulp);
169 int float_near_abs_eps(float a, float b, float eps);
170 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp);
171 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
172  unsigned len);
173 int float_near_abs_eps_array(const float *a, const float *b, float eps,
174  unsigned len);
175 int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
176  unsigned max_ulp, unsigned len);
177 int double_near_abs_eps(double a, double b, double eps);
178 int double_near_abs_eps_array(const double *a, const double *b, double eps,
179  unsigned len);
180 
181 extern AVLFG checkasm_lfg;
182 #define rnd() av_lfg_get(&checkasm_lfg)
183 
184 static av_unused void *func_ref, *func_new;
185 
186 extern uint64_t bench_runs;
187 
188 /* Decide whether or not the specified function needs to be tested */
189 #define check_func(func, ...) (checkasm_save_context(), func_ref = checkasm_check_func((func_new = func), __VA_ARGS__))
190 
191 /* Declare the function prototype. The first argument is the return value, the remaining
192  * arguments are the function parameters. Naming parameters is optional. */
193 #define declare_func(ret, ...) declare_new(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
194 #define declare_func_float(ret, ...) declare_new_float(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
195 #define declare_func_emms(cpu_flags, ret, ...) declare_new_emms(cpu_flags, ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
196 
197 /* Indicate that the current test has failed */
198 #define fail() checkasm_fail_func("%s:%d", av_basename(__FILE__), __LINE__)
199 
200 /* Print the test outcome */
201 #define report checkasm_report
202 
203 /* Call the reference function */
204 #define call_ref(...)\
205  (checkasm_set_signal_handler_state(1),\
206  ((func_type *)func_ref)(__VA_ARGS__));\
207  checkasm_set_signal_handler_state(0)
208 
209 #if ARCH_X86 && HAVE_X86ASM
210 /* Verifies that clobbered callee-saved registers are properly saved and restored
211  * and that either no MMX registers are touched or emms is issued */
212 void checkasm_checked_call(void *func, ...);
213 /* Verifies that clobbered callee-saved registers are properly saved and restored
214  * and issues emms for asm functions which are not required to do so */
215 void checkasm_checked_call_emms(void *func, ...);
216 /* Verifies that clobbered callee-saved registers are properly saved and restored
217  * but doesn't issue emms. Meant for dsp functions returning float or double */
218 void checkasm_checked_call_float(void *func, ...);
219 
220 #if ARCH_X86_64
221 /* Evil hack: detect incorrect assumptions that 32-bit ints are zero-extended to 64-bit.
222  * This is done by clobbering the stack with junk around the stack pointer and calling the
223  * assembly function through checked_call() with added dummy arguments which forces all
224  * real arguments to be passed on the stack and not in registers. For 32-bit arguments the
225  * upper half of the 64-bit register locations on the stack will now contain junk which will
226  * cause misbehaving functions to either produce incorrect output or segfault. Note that
227  * even though this works extremely well in practice, it's technically not guaranteed
228  * and false negatives is theoretically possible, but there can never be any false positives.
229  */
230 void checkasm_stack_clobber(uint64_t clobber, ...);
231 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
232  = (void *)checkasm_checked_call;
233 #define declare_new_float(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
234  = (void *)checkasm_checked_call_float;
235 #define declare_new_emms(cpu_flags, ret, ...) \
236  ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__) = \
237  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
238  (void *)checkasm_checked_call;
239 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
240 #define call_new(...) (checkasm_set_signal_handler_state(1),\
241  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
242  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
243  checked_call(func_new, 0, 0, 0, 0, 0, __VA_ARGS__));\
244  checkasm_set_signal_handler_state(0)
245 #elif ARCH_X86_32
246 #define declare_new(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call;
247 #define declare_new_float(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call_float;
248 #define declare_new_emms(cpu_flags, ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = \
249  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
250  (void *)checkasm_checked_call;
251 #define call_new(...)\
252  (checkasm_set_signal_handler_state(1),\
253  checked_call(func_new, __VA_ARGS__));\
254  checkasm_set_signal_handler_state(0)
255 #endif
256 #elif ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
257 /* Use a dummy argument, to offset the real parameters by 2, not only 1.
258  * This makes sure that potential 8-byte-alignment of parameters is kept the same
259  * even when the extra parameters have been removed. */
260 void checkasm_checked_call_vfp(void *func, int dummy, ...);
261 void checkasm_checked_call_novfp(void *func, int dummy, ...);
262 extern void (*checkasm_checked_call)(void *func, int dummy, ...);
263 #define declare_new(ret, ...) ret (*checked_call)(void *, int dummy, __VA_ARGS__, \
264  int, int, int, int, int, int, int, int, \
265  int, int, int, int, int, int, int) = (void *)checkasm_checked_call;
266 #define call_new(...) \
267  (checkasm_set_signal_handler_state(1),\
268  checked_call(func_new, 0, __VA_ARGS__, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0));\
269  checkasm_set_signal_handler_state(0)
270 #elif ARCH_AARCH64 && !defined(__APPLE__)
271 void checkasm_stack_clobber(uint64_t clobber, ...);
272 void checkasm_checked_call(void *func, ...);
273 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, int, int, __VA_ARGS__,\
274  int, int, int, int, int, int, int, int,\
275  int, int, int, int, int, int, int)\
276  = (void *)checkasm_checked_call;
277 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
278 #define call_new(...) (checkasm_set_signal_handler_state(1),\
279  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
280  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
281  checked_call(func_new, 0, 0, 0, 0, 0, 0, 0, __VA_ARGS__,\
282  7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0));\
283  checkasm_set_signal_handler_state(0)
284 #elif ARCH_RISCV
285 void checkasm_set_function(void *);
286 void *checkasm_get_wrapper(void);
287 
288 #if HAVE_RV && (__riscv_xlen == 64) && defined (__riscv_d)
289 #define declare_new(ret, ...) \
290  ret (*checked_call)(__VA_ARGS__) = checkasm_get_wrapper();
291 #define call_new(...) \
292  (checkasm_set_signal_handler_state(1),\
293  checkasm_set_function(func_new), checked_call(__VA_ARGS__));\
294  checkasm_set_signal_handler_state(0)
295 #else
296 #define declare_new(ret, ...)
297 #define call_new(...)\
298  (checkasm_set_signal_handler_state(1),\
299  ((func_type *)func_new)(__VA_ARGS__));\
300  checkasm_set_signal_handler_state(0)
301 #endif
302 #else
303 #define declare_new(ret, ...)
304 #define declare_new_float(ret, ...)
305 #define declare_new_emms(cpu_flags, ret, ...)
306 /* Call the function */
307 #define call_new(...)\
308  (checkasm_set_signal_handler_state(1),\
309  ((func_type *)func_new)(__VA_ARGS__));\
310  checkasm_set_signal_handler_state(0)
311 #endif
312 
313 #ifndef declare_new_emms
314 #define declare_new_emms(cpu_flags, ret, ...) declare_new(ret, __VA_ARGS__)
315 #endif
316 #ifndef declare_new_float
317 #define declare_new_float(ret, ...) declare_new(ret, __VA_ARGS__)
318 #endif
319 
320 typedef struct CheckasmPerf {
321  int sysfd;
322  uint64_t cycles;
324 } CheckasmPerf;
325 
326 #if defined(AV_READ_TIME) || CONFIG_LINUX_PERF || CONFIG_MACOS_KPERF
327 
328 #if CONFIG_LINUX_PERF
329 #define PERF_START(t) do { \
330  ioctl(sysfd, PERF_EVENT_IOC_RESET, 0); \
331  ioctl(sysfd, PERF_EVENT_IOC_ENABLE, 0); \
332 } while (0)
333 #define PERF_STOP(t) do { \
334  int ret; \
335  ioctl(sysfd, PERF_EVENT_IOC_DISABLE, 0); \
336  ret = read(sysfd, &t, sizeof(t)); \
337  (void)ret; \
338 } while (0)
339 #elif CONFIG_MACOS_KPERF
340 #define PERF_START(t) t = ff_kperf_cycles()
341 #define PERF_STOP(t) t = ff_kperf_cycles() - t
342 #else
343 #define PERF_START(t) t = AV_READ_TIME()
344 #define PERF_STOP(t) t = AV_READ_TIME() - t
345 #endif
346 
347 /* Benchmark the function */
348 #define bench_new(...)\
349  do {\
350  if (checkasm_bench_func()) {\
351  struct CheckasmPerf *perf = checkasm_get_perf_context();\
352  av_unused const int sysfd = perf->sysfd;\
353  func_type *tfunc = func_new;\
354  uint64_t tsum = 0;\
355  uint64_t ti, tcount = 0;\
356  uint64_t t = 0; \
357  const uint64_t truns = bench_runs;\
358  checkasm_set_signal_handler_state(1);\
359  for (ti = 0; ti < truns; ti++) {\
360  PERF_START(t);\
361  tfunc(__VA_ARGS__);\
362  tfunc(__VA_ARGS__);\
363  tfunc(__VA_ARGS__);\
364  tfunc(__VA_ARGS__);\
365  PERF_STOP(t);\
366  if (t*tcount <= tsum*4 && ti > 0) {\
367  tsum += t;\
368  tcount++;\
369  }\
370  }\
371  emms_c();\
372  perf->cycles += tsum;\
373  perf->iterations += tcount;\
374  checkasm_set_signal_handler_state(0);\
375  }\
376  } while (0)
377 #else
378 #define bench_new(...) while(0)
379 #define PERF_START(t) while(0)
380 #define PERF_STOP(t) while(0)
381 #endif
382 
383 #define BUF_RECT(type, name, w, h) \
384  LOCAL_ALIGNED_32(type, name##_buf, [((h)+32)*(FFALIGN(w,64)+64) + 64]); \
385  av_unused ptrdiff_t name##_stride = sizeof(type)*(FFALIGN(w,64)+64); \
386  av_unused int name##_buf_h = (h)+32; \
387  type *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
388 
389 #define PIXEL_RECT(name, w, h) \
390  LOCAL_ALIGNED_32(uint8_t, name##_buf, [sizeof(uint16_t) * (((h)+32)*(FFALIGN(w,64)+64) + 64)],); \
391  av_unused ptrdiff_t name##_stride = sizeof(uint16_t) * (FFALIGN(w,64)+64); \
392  av_unused int name##_buf_h = (h)+32; \
393  uint8_t *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
394 
395 #define CLEAR_BUF_RECT(name) \
396  memset(name##_buf, 0x99, name##_stride * name##_buf_h + 64)
397 #define CLEAR_PIXEL_RECT(name) \
398  CLEAR_BUF_RECT(name)
399 
400 #define DECL_CHECKASM_CHECK_FUNC(type) \
401 int checkasm_check_##type(const char *file, int line, \
402  const type *buf1, ptrdiff_t stride1, \
403  const type *buf2, ptrdiff_t stride2, \
404  int w, int h, const char *name, \
405  int align_w, int align_h, \
406  int padding)
407 
408 DECL_CHECKASM_CHECK_FUNC(uint8_t);
409 DECL_CHECKASM_CHECK_FUNC(uint16_t);
410 DECL_CHECKASM_CHECK_FUNC(uint32_t);
411 DECL_CHECKASM_CHECK_FUNC(int16_t);
413 
414 #define PASTE(a,b) a ## b
415 #define CONCAT(a,b) PASTE(a,b)
416 
417 #define checkasm_check2(prefix, ...) CONCAT(checkasm_check_, prefix)(__FILE__, __LINE__, __VA_ARGS__)
418 #define checkasm_check(prefix, ...) checkasm_check2(prefix, __VA_ARGS__, 0, 0, 0)
419 /* Check a pointer from BUF_RECT, checking whether there have been
420  * writes outside of the designated area. */
421 #define checkasm_check_padded(...) \
422  checkasm_check2(__VA_ARGS__, 1, 1, 8)
423 /* Check a pointer from BUF_RECT, checking whether there have been
424  * writes outside of the designated area. Allow writing slightly past the
425  * end of the buffer, by aligning w/h to align_w/align_h, and checking
426  * for overwrites outside of that. */
427 #define checkasm_check_padded_align(...) \
428  checkasm_check2(__VA_ARGS__, 8)
429 
430 /* This assumes that there is a local variable named "bit_depth".
431  * For tests that don't have that and only operate on a single
432  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
433 #define checkasm_check_pixel2(buf1, stride1, buf2, stride2, ...) \
434  ((bit_depth > 8) ? \
435  checkasm_check2(uint16_t, (const uint16_t*)buf1, stride1, \
436  (const uint16_t*)buf2, stride2, \
437  __VA_ARGS__) : \
438  checkasm_check2(uint8_t, (const uint8_t*) buf1, stride1, \
439  (const uint8_t*) buf2, stride2, \
440  __VA_ARGS__))
441 #define checkasm_check_pixel(...) \
442  checkasm_check_pixel2(__VA_ARGS__, 0, 0, 0)
443 #define checkasm_check_pixel_padded(...) \
444  checkasm_check_pixel2(__VA_ARGS__, 1, 1, 8)
445 #define checkasm_check_pixel_padded_align(...) \
446  checkasm_check_pixel2(__VA_ARGS__, 8)
447 
448 /* This assumes that there is a local variable named "bit_depth".
449  * For tests that don't have that and only operate on a single
450  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
451 #define checkasm_check_dctcoef(buf1, stride1, buf2, stride2, ...) \
452  ((bit_depth > 8) ? \
453  checkasm_check(int32_t, (const int32_t*)buf1, stride1, \
454  (const int32_t*)buf2, stride2, \
455  __VA_ARGS__) : \
456  checkasm_check(int16_t, (const int16_t*)buf1, stride1, \
457  (const int16_t*)buf2, stride2, \
458  __VA_ARGS__))
459 
460 #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:425
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
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_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:131
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:437
checkasm_bench_func
void int checkasm_bench_func(void)
Definition: checkasm.c:1090
b
#define b
Definition: input.c:42
func_ref
static av_unused void * func_ref
Definition: checkasm.h:184
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:321
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:503
checkasm_check_h264dsp
void checkasm_check_h264dsp(void)
Definition: h264dsp.c:488
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:184
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:486
CheckasmPerf
Definition: checkasm.h:320
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:510
checkasm_get_perf_context
int struct CheckasmPerf * checkasm_get_perf_context(void)
Definition: checkasm.c:1137
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:323
checkasm_check_takdsp
void checkasm_check_takdsp(void)
Definition: takdsp.c:145
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:1118
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:474
av_printf_format
#define av_printf_format(fmtpos, attrpos)
Definition: attributes.h:161
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:491
timer.h
checkasm_check_vorbisdsp
void checkasm_check_vorbisdsp(void)
Definition: vorbisdsp.c:76
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:746
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
CheckasmPerf::cycles
uint64_t cycles
Definition: checkasm.h:322
float_near_abs_eps
int float_near_abs_eps(float a, float b, float eps)
Definition: checkasm.c:463
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_vf_sobel
void checkasm_check_vf_sobel(void)
Definition: vf_convolution.c:100
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:1122
DECL_CHECKASM_CHECK_FUNC
#define DECL_CHECKASM_CHECK_FUNC(type)
Definition: checkasm.h:400
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_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
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:433
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:451
checkasm_check_opusdsp
void checkasm_check_opusdsp(void)
Definition: opusdsp.c:86