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 defined(__i386__) || defined(_M_IX86)
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_mpegvideo_unquantize(void);
127 void checkasm_check_mpegvideoencdsp(void);
128 void checkasm_check_nlmeans(void);
129 void checkasm_check_opusdsp(void);
130 void checkasm_check_pixblockdsp(void);
131 void checkasm_check_qpeldsp(void);
132 void checkasm_check_sbrdsp(void);
133 void checkasm_check_rv34dsp(void);
134 void checkasm_check_rv40dsp(void);
135 void checkasm_check_scene_sad(void);
136 void checkasm_check_svq1enc(void);
137 void checkasm_check_synth_filter(void);
138 void checkasm_check_sw_gbrp(void);
139 void checkasm_check_sw_range_convert(void);
140 void checkasm_check_sw_rgb(void);
141 void checkasm_check_sw_scale(void);
142 void checkasm_check_sw_xyz2rgb(void);
143 void checkasm_check_sw_yuv2rgb(void);
144 void checkasm_check_sw_yuv2yuv(void);
145 void checkasm_check_sw_ops(void);
146 void checkasm_check_takdsp(void);
147 void checkasm_check_utvideodsp(void);
148 void checkasm_check_v210dec(void);
149 void checkasm_check_v210enc(void);
150 void checkasm_check_vc1dsp(void);
151 void checkasm_check_vf_bwdif(void);
152 void checkasm_check_vf_eq(void);
153 void checkasm_check_vf_fspp(void);
154 void checkasm_check_vf_gblur(void);
155 void checkasm_check_vf_hflip(void);
156 void checkasm_check_vf_threshold(void);
157 void checkasm_check_vf_sobel(void);
158 void checkasm_check_vp3dsp(void);
159 void checkasm_check_vp6dsp(void);
160 void checkasm_check_vp8dsp(void);
161 void checkasm_check_vp9dsp(void);
162 void checkasm_check_videodsp(void);
163 void checkasm_check_vorbisdsp(void);
164 void checkasm_check_vvc_alf(void);
165 void checkasm_check_vvc_mc(void);
166 void checkasm_check_vvc_sao(void);
167 
168 struct CheckasmPerf;
169 
170 void *checkasm_check_func(void *func, const char *name, ...) av_printf_format(2, 3);
171 int checkasm_bench_func(void);
172 int checkasm_fail_func(const char *msg, ...) av_printf_format(1, 2);
173 struct CheckasmPerf *checkasm_get_perf_context(void);
174 void checkasm_report(const char *name, ...) av_printf_format(1, 2);
175 void checkasm_set_signal_handler_state(int enabled);
176 int checkasm_handle_signal(int s);
177 extern checkasm_context checkasm_context_buf;
178 
179 /* float compare utilities */
180 int float_near_ulp(float a, float b, unsigned max_ulp);
181 int float_near_abs_eps(float a, float b, float eps);
182 int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp);
183 int float_near_ulp_array(const float *a, const float *b, unsigned max_ulp,
184  unsigned len);
185 int float_near_abs_eps_array(const float *a, const float *b, float eps,
186  unsigned len);
187 int float_near_abs_eps_array_ulp(const float *a, const float *b, float eps,
188  unsigned max_ulp, unsigned len);
189 int double_near_abs_eps(double a, double b, double eps);
190 int double_near_abs_eps_array(const double *a, const double *b, double eps,
191  unsigned len);
192 
193 extern AVLFG checkasm_lfg;
194 #define rnd() av_lfg_get(&checkasm_lfg)
195 
196 av_unused static void *func_ref, *func_new;
197 
198 extern uint64_t bench_runs;
199 
200 /* Decide whether or not the specified function needs to be tested */
201 #define check_func(func, ...) (checkasm_save_context(), func_ref = checkasm_check_func((func_new = func), __VA_ARGS__))
202 
203 /* Declare the function prototype. The first argument is the return value, the remaining
204  * arguments are the function parameters. Naming parameters is optional. */
205 #define declare_func(ret, ...) declare_new(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
206 #define declare_func_float(ret, ...) declare_new_float(ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
207 #define declare_func_emms(cpu_flags, ret, ...) declare_new_emms(cpu_flags, ret, __VA_ARGS__) typedef ret func_type(__VA_ARGS__)
208 
209 /* Indicate that the current test has failed */
210 #define fail() checkasm_fail_func("%s:%d", av_basename(__FILE__), __LINE__)
211 
212 /* Print the test outcome */
213 #define report checkasm_report
214 
215 /* Call the reference function */
216 #define call_ref(...)\
217  (checkasm_set_signal_handler_state(1),\
218  ((func_type *)func_ref)(__VA_ARGS__));\
219  checkasm_set_signal_handler_state(0)
220 
221 #if ARCH_X86 && HAVE_X86ASM
222 /* Verifies that clobbered callee-saved registers are properly saved and restored
223  * and that either no MMX registers are touched or emms is issued */
224 void checkasm_checked_call(void *func, ...);
225 /* Verifies that clobbered callee-saved registers are properly saved and restored
226  * and issues emms for asm functions which are not required to do so */
227 void checkasm_checked_call_emms(void *func, ...);
228 /* Verifies that clobbered callee-saved registers are properly saved and restored
229  * but doesn't issue emms. Meant for dsp functions returning float or double */
230 void checkasm_checked_call_float(void *func, ...);
231 
232 #if ARCH_X86_64
233 /* Evil hack: detect incorrect assumptions that 32-bit ints are zero-extended to 64-bit.
234  * This is done by clobbering the stack with junk around the stack pointer and calling the
235  * assembly function through checked_call() with added dummy arguments which forces all
236  * real arguments to be passed on the stack and not in registers. For 32-bit arguments the
237  * upper half of the 64-bit register locations on the stack will now contain junk which will
238  * cause misbehaving functions to either produce incorrect output or segfault. Note that
239  * even though this works extremely well in practice, it's technically not guaranteed
240  * and false negatives is theoretically possible, but there can never be any false positives.
241  */
242 void checkasm_stack_clobber(uint64_t clobber, ...);
243 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
244  = (void *)checkasm_checked_call;
245 #define declare_new_float(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__)\
246  = (void *)checkasm_checked_call_float;
247 #define declare_new_emms(cpu_flags, ret, ...) \
248  ret (*checked_call)(void *, int, int, int, int, int, __VA_ARGS__) = \
249  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
250  (void *)checkasm_checked_call;
251 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
252 #define call_new(...) (checkasm_set_signal_handler_state(1),\
253  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
254  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
255  checked_call(func_new, 0, 0, 0, 0, 0, __VA_ARGS__));\
256  checkasm_set_signal_handler_state(0)
257 #elif ARCH_X86_32
258 #define declare_new(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call;
259 #define declare_new_float(ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = (void *)checkasm_checked_call_float;
260 #define declare_new_emms(cpu_flags, ret, ...) ret (*checked_call)(void *, __VA_ARGS__) = \
261  ((cpu_flags) & av_get_cpu_flags()) ? (void *)checkasm_checked_call_emms : \
262  (void *)checkasm_checked_call;
263 #define call_new(...)\
264  (checkasm_set_signal_handler_state(1),\
265  checked_call(func_new, __VA_ARGS__));\
266  checkasm_set_signal_handler_state(0)
267 #endif
268 #elif ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
269 /* Use a dummy argument, to offset the real parameters by 2, not only 1.
270  * This makes sure that potential 8-byte-alignment of parameters is kept the same
271  * even when the extra parameters have been removed. */
272 void checkasm_checked_call_vfp(void *func, int dummy, ...);
273 void checkasm_checked_call_novfp(void *func, int dummy, ...);
274 extern void (*checkasm_checked_call)(void *func, int dummy, ...);
275 #define declare_new(ret, ...) ret (*checked_call)(void *, int dummy, __VA_ARGS__, \
276  int, int, int, int, int, int, int, int, \
277  int, int, int, int, int, int, int) = (void *)checkasm_checked_call;
278 #define call_new(...) \
279  (checkasm_set_signal_handler_state(1),\
280  checked_call(func_new, 0, __VA_ARGS__, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0));\
281  checkasm_set_signal_handler_state(0)
282 #elif ARCH_AARCH64 && !defined(__APPLE__)
283 void checkasm_stack_clobber(uint64_t clobber, ...);
284 void checkasm_checked_call(void *func, ...);
285 #define declare_new(ret, ...) ret (*checked_call)(void *, int, int, int, int, int, int, int, __VA_ARGS__,\
286  int, int, int, int, int, int, int, int,\
287  int, int, int, int, int, int, int)\
288  = (void *)checkasm_checked_call;
289 #define CLOB (UINT64_C(0xdeadbeefdeadbeef))
290 #define call_new(...) (checkasm_set_signal_handler_state(1),\
291  checkasm_stack_clobber(CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,\
292  CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB,CLOB),\
293  checked_call(func_new, 0, 0, 0, 0, 0, 0, 0, __VA_ARGS__,\
294  7, 6, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0));\
295  checkasm_set_signal_handler_state(0)
296 #elif ARCH_RISCV
297 void checkasm_set_function(void *);
298 void *checkasm_get_wrapper(void);
299 
300 #if HAVE_RV && (__riscv_xlen == 64) && defined (__riscv_d)
301 #define declare_new(ret, ...) \
302  ret (*checked_call)(__VA_ARGS__) = checkasm_get_wrapper();
303 #define call_new(...) \
304  (checkasm_set_signal_handler_state(1),\
305  checkasm_set_function(func_new), checked_call(__VA_ARGS__));\
306  checkasm_set_signal_handler_state(0)
307 #else
308 #define declare_new(ret, ...)
309 #define call_new(...)\
310  (checkasm_set_signal_handler_state(1),\
311  ((func_type *)func_new)(__VA_ARGS__));\
312  checkasm_set_signal_handler_state(0)
313 #endif
314 #else
315 #define declare_new(ret, ...)
316 #define declare_new_float(ret, ...)
317 #define declare_new_emms(cpu_flags, ret, ...)
318 /* Call the function */
319 #define call_new(...)\
320  (checkasm_set_signal_handler_state(1),\
321  ((func_type *)func_new)(__VA_ARGS__));\
322  checkasm_set_signal_handler_state(0)
323 #endif
324 
325 #ifndef declare_new_emms
326 #define declare_new_emms(cpu_flags, ret, ...) declare_new(ret, __VA_ARGS__)
327 #endif
328 #ifndef declare_new_float
329 #define declare_new_float(ret, ...) declare_new(ret, __VA_ARGS__)
330 #endif
331 
332 typedef struct CheckasmPerf {
333  int sysfd;
334  uint64_t cycles;
335  int iterations;
336 } CheckasmPerf;
337 
338 #if defined(AV_READ_TIME) || CONFIG_LINUX_PERF || CONFIG_MACOS_KPERF
339 
340 #if CONFIG_LINUX_PERF
341 #define PERF_START(t) do { \
342  ioctl(sysfd, PERF_EVENT_IOC_RESET, 0); \
343  ioctl(sysfd, PERF_EVENT_IOC_ENABLE, 0); \
344 } while (0)
345 #define PERF_STOP(t) do { \
346  int ret; \
347  ioctl(sysfd, PERF_EVENT_IOC_DISABLE, 0); \
348  ret = read(sysfd, &t, sizeof(t)); \
349  (void)ret; \
350 } while (0)
351 #elif CONFIG_MACOS_KPERF
352 #define PERF_START(t) t = ff_kperf_cycles()
353 #define PERF_STOP(t) t = ff_kperf_cycles() - t
354 #else
355 #define PERF_START(t) t = AV_READ_TIME()
356 #define PERF_STOP(t) t = AV_READ_TIME() - t
357 #endif
358 
359 #define CALL4(...)\
360  do {\
361  tfunc(__VA_ARGS__); \
362  tfunc(__VA_ARGS__); \
363  tfunc(__VA_ARGS__); \
364  tfunc(__VA_ARGS__); \
365  } while (0)
366 
367 #define CALL16(...)\
368  do {\
369  CALL4(__VA_ARGS__); \
370  CALL4(__VA_ARGS__); \
371  CALL4(__VA_ARGS__); \
372  CALL4(__VA_ARGS__); \
373  } while (0)
374 
375 /* Benchmark the function */
376 #define bench_new(...)\
377  do {\
378  if (checkasm_bench_func()) {\
379  struct CheckasmPerf *perf = checkasm_get_perf_context();\
380  av_unused const int sysfd = perf->sysfd;\
381  func_type *tfunc = func_new;\
382  uint64_t tsum = 0;\
383  uint64_t ti, tcount = 0;\
384  uint64_t t = 0; \
385  const uint64_t truns = FFMAX(bench_runs >> 3, 1);\
386  checkasm_set_signal_handler_state(1);\
387  for (ti = 0; ti < truns; ti++) {\
388  PERF_START(t);\
389  CALL16(__VA_ARGS__);\
390  CALL16(__VA_ARGS__);\
391  PERF_STOP(t);\
392  if (t*tcount <= tsum*4 && ti > 0) {\
393  tsum += t;\
394  tcount++;\
395  }\
396  }\
397  emms_c();\
398  perf->cycles += tsum;\
399  perf->iterations += tcount;\
400  checkasm_set_signal_handler_state(0);\
401  }\
402  } while (0)
403 #else
404 #define bench_new(...) while(0)
405 #define PERF_START(t) while(0)
406 #define PERF_STOP(t) while(0)
407 #endif
408 
409 #define BUF_RECT(type, name, w, h) \
410  LOCAL_ALIGNED_32(type, name##_buf, [((h)+32)*(FFALIGN(w,64)+64) + 64]); \
411  av_unused ptrdiff_t name##_stride = sizeof(type)*(FFALIGN(w,64)+64); \
412  av_unused int name##_buf_h = (h)+32; \
413  type *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
414 
415 #define PIXEL_RECT(name, w, h) \
416  LOCAL_ALIGNED_32(uint8_t, name##_buf, [sizeof(uint16_t) * (((h)+32)*(FFALIGN(w,64)+64) + 64)],); \
417  av_unused ptrdiff_t name##_stride = sizeof(uint16_t) * (FFALIGN(w,64)+64); \
418  av_unused int name##_buf_h = (h)+32; \
419  uint8_t *name = name##_buf + (FFALIGN(w,64)+64)*16 + 64
420 
421 #define CLEAR_BUF_RECT(name) \
422  memset(name##_buf, 0x99, name##_stride * name##_buf_h + 64)
423 #define CLEAR_PIXEL_RECT(name) \
424  CLEAR_BUF_RECT(name)
425 
426 #define DECL_CHECKASM_CHECK_FUNC(type) \
427 int checkasm_check_##type(const char *file, int line, \
428  const type *buf1, ptrdiff_t stride1, \
429  const type *buf2, ptrdiff_t stride2, \
430  int w, int h, const char *name, \
431  int align_w, int align_h, \
432  int padding)
433 
434 DECL_CHECKASM_CHECK_FUNC(uint8_t);
435 DECL_CHECKASM_CHECK_FUNC(uint16_t);
436 DECL_CHECKASM_CHECK_FUNC(uint32_t);
437 DECL_CHECKASM_CHECK_FUNC(int16_t);
438 DECL_CHECKASM_CHECK_FUNC(int32_t);
439 
440 int checkasm_check_float_ulp(const char *file, int line,
441  const float *buf1, ptrdiff_t stride1,
442  const float *buf2, ptrdiff_t stride2,
443  int w, int h, const char *name,
444  unsigned max_ulp, int align_w, int align_h,
445  int padding);
446 
447 #define PASTE(a,b) a ## b
448 #define CONCAT(a,b) PASTE(a,b)
449 
450 #define checkasm_check2(prefix, ...) CONCAT(checkasm_check_, prefix)(__FILE__, __LINE__, __VA_ARGS__)
451 #define checkasm_check(prefix, ...) checkasm_check2(prefix, __VA_ARGS__, 0, 0, 0)
452 /* Check a pointer from BUF_RECT, checking whether there have been
453  * writes outside of the designated area. */
454 #define checkasm_check_padded(...) \
455  checkasm_check2(__VA_ARGS__, 1, 1, 8)
456 /* Check a pointer from BUF_RECT, checking whether there have been
457  * writes outside of the designated area. Allow writing slightly past the
458  * end of the buffer, by aligning w/h to align_w/align_h, and checking
459  * for overwrites outside of that. */
460 #define checkasm_check_padded_align(...) \
461  checkasm_check2(__VA_ARGS__, 8)
462 
463 /* This assumes that there is a local variable named "bit_depth".
464  * For tests that don't have that and only operate on a single
465  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
466 #define checkasm_check_pixel2(buf1, stride1, buf2, stride2, ...) \
467  ((bit_depth > 8) ? \
468  checkasm_check2(uint16_t, (const uint16_t*)buf1, stride1, \
469  (const uint16_t*)buf2, stride2, \
470  __VA_ARGS__) : \
471  checkasm_check2(uint8_t, (const uint8_t*) buf1, stride1, \
472  (const uint8_t*) buf2, stride2, \
473  __VA_ARGS__))
474 #define checkasm_check_pixel(...) \
475  checkasm_check_pixel2(__VA_ARGS__, 0, 0, 0)
476 #define checkasm_check_pixel_padded(...) \
477  checkasm_check_pixel2(__VA_ARGS__, 1, 1, 8)
478 #define checkasm_check_pixel_padded_align(...) \
479  checkasm_check_pixel2(__VA_ARGS__, 8)
480 
481 /* This assumes that there is a local variable named "bit_depth"
482  * and that the type-specific buffers obey the name ## _BITDEPTH
483  * convention.
484  * For tests that don't have that and only operate on a single
485  * bitdepth, just call checkasm_check(uint8_t, ...) directly. */
486 #define checkasm_check_dctcoef(buf1, stride1, buf2, stride2, ...) \
487  ((bit_depth > 8) ? \
488  checkasm_check(int32_t, buf1 ## _32, stride1, \
489  buf2 ## _32, stride2, \
490  __VA_ARGS__) : \
491  checkasm_check(int16_t, buf1 ## _16, stride1, \
492  buf2 ## _16, stride2, \
493  __VA_ARGS__))
494 
495 #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)
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checkasm_lfg
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void checkasm_check_sw_gbrp(void)
Definition: sw_gbrp.c:398
checkasm_check_vp8dsp
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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_sw_xyz2rgb
void checkasm_check_sw_xyz2rgb(void)
Definition: sw_xyz2rgb.c:104
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)
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checkasm_check_v210dec
void checkasm_check_v210dec(void)
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checkasm_check_sw_yuv2yuv
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Definition: aacencdsp.c:100
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#define av_unused
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checkasm_check_hevc_idct
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checkasm_check_sw_scale
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checkasm_bench_func
void int checkasm_bench_func(void)
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b
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static av_unused void * func_ref
Definition: checkasm.h:196
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)
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checkasm_check_func
void * checkasm_check_func(void *func, const char *name,...) av_printf_format(2
CheckasmPerf::sysfd
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checkasm_check_alacdsp
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checkasm_check_llviddspenc
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double_near_abs_eps
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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
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static av_unused void * func_new
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checkasm_check_h263dsp
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Definition: h263dsp.c:54
float_near_abs_eps_ulp
int float_near_abs_eps_ulp(float a, float b, float eps, unsigned max_ulp)
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CheckasmPerf
Definition: checkasm.h:332
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Definition: motion.c:64
checkasm_check_vp9dsp
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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)
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double_near_abs_eps_array
int double_near_abs_eps_array(const double *a, const double *b, double eps, unsigned len)
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checkasm_get_perf_context
int struct CheckasmPerf * checkasm_get_perf_context(void)
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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)
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checkasm_check_vf_bwdif
void checkasm_check_vf_bwdif(void)
Definition: vf_bwdif.c:72
lfg.h
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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
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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)
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macos_kperf.h
float_near_abs_eps_array
int float_near_abs_eps_array(const float *a, const float *b, float eps, unsigned len)
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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)
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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)
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AVLFG
Context structure for the Lagged Fibonacci PRNG.
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checkasm_check_llauddsp
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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
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Definition: huffyuvdsp.c:95
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Definition: fixed_dsp.c:133
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Definition: flacdsp.c:155
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Definition: blockdsp.c:78
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CONTEXT
#define CONTEXT
Definition: af_asetrate.c:32
len
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Definition: g722dsp.c:53
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Definition: rv34dsp.c:82
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Definition: cavsdsp.c:116
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