diff options
Diffstat (limited to 'pixman/test/utils.h')
-rw-r--r-- | pixman/test/utils.h | 302 |
1 files changed, 151 insertions, 151 deletions
diff --git a/pixman/test/utils.h b/pixman/test/utils.h index cd9a3c263..3790483db 100644 --- a/pixman/test/utils.h +++ b/pixman/test/utils.h @@ -1,151 +1,151 @@ -#include <stdlib.h>
-#include <config.h>
-#include <assert.h>
-#include "pixman-private.h" /* For 'inline' definition */
-
-#define ARRAY_LENGTH(A) ((int) (sizeof (A) / sizeof ((A) [0])))
-
-/* A primitive pseudorandom number generator,
- * taken from POSIX.1-2001 example
- */
-
-extern uint32_t lcg_seed;
-#ifdef USE_OPENMP
-#pragma omp threadprivate(lcg_seed)
-#endif
-
-static inline uint32_t
-lcg_rand (void)
-{
- lcg_seed = lcg_seed * 1103515245 + 12345;
- return ((uint32_t)(lcg_seed / 65536) % 32768);
-}
-
-static inline void
-lcg_srand (uint32_t seed)
-{
- lcg_seed = seed;
-}
-
-static inline uint32_t
-lcg_rand_n (int max)
-{
- return lcg_rand () % max;
-}
-
-static inline uint32_t
-lcg_rand_N (int max)
-{
- uint32_t lo = lcg_rand ();
- uint32_t hi = lcg_rand () << 15;
- return (lo | hi) % max;
-}
-
-static inline uint32_t
-lcg_rand_u32 (void)
-{
- /* This uses the 10/11 most significant bits from the 3 lcg results
- * (and mixes them with the low from the adjacent one).
- */
- uint32_t lo = lcg_rand() >> -(32 - 15 - 11 * 2);
- uint32_t mid = lcg_rand() << (32 - 15 - 11 * 1);
- uint32_t hi = lcg_rand() << (32 - 15 - 11 * 0);
-
- return (hi ^ mid ^ lo);
-}
-
-/* CRC 32 computation
- */
-uint32_t
-compute_crc32 (uint32_t in_crc32,
- const void *buf,
- size_t buf_len);
-
-/* Returns TRUE if running on a little endian system */
-pixman_bool_t
-is_little_endian (void);
-
-/* perform endian conversion of pixel data
- */
-void
-image_endian_swap (pixman_image_t *img);
-
-/* Allocate memory that is bounded by protected pages,
- * so that out-of-bounds access will cause segfaults
- */
-void *
-fence_malloc (int64_t len);
-
-void
-fence_free (void *data);
-
-/* Generate n_bytes random bytes in fence_malloced memory */
-uint8_t *
-make_random_bytes (int n_bytes);
-
-/* Return current time in seconds */
-double
-gettime (void);
-
-uint32_t
-get_random_seed (void);
-
-/* main body of the fuzzer test */
-int
-fuzzer_test_main (const char *test_name,
- int default_number_of_iterations,
- uint32_t expected_checksum,
- uint32_t (*test_function)(int testnum, int verbose),
- int argc,
- const char *argv[]);
-
-void
-fail_after (int seconds, const char *msg);
-
-/* If possible, enable traps for floating point exceptions */
-void enable_fp_exceptions(void);
-
-pixman_bool_t
-write_png (pixman_image_t *image, const char *filename);
-
-/* A pair of macros which can help to detect corruption of
- * floating point registers after a function call. This may
- * happen if _mm_empty() call is forgotten in MMX/SSE2 fast
- * path code, or ARM NEON assembly optimized function forgets
- * to save/restore d8-d15 registers before use.
- */
-
-#define FLOAT_REGS_CORRUPTION_DETECTOR_START() \
- static volatile double frcd_volatile_constant1 = 123451; \
- static volatile double frcd_volatile_constant2 = 123452; \
- static volatile double frcd_volatile_constant3 = 123453; \
- static volatile double frcd_volatile_constant4 = 123454; \
- static volatile double frcd_volatile_constant5 = 123455; \
- static volatile double frcd_volatile_constant6 = 123456; \
- static volatile double frcd_volatile_constant7 = 123457; \
- static volatile double frcd_volatile_constant8 = 123458; \
- double frcd_canary_variable1 = frcd_volatile_constant1; \
- double frcd_canary_variable2 = frcd_volatile_constant2; \
- double frcd_canary_variable3 = frcd_volatile_constant3; \
- double frcd_canary_variable4 = frcd_volatile_constant4; \
- double frcd_canary_variable5 = frcd_volatile_constant5; \
- double frcd_canary_variable6 = frcd_volatile_constant6; \
- double frcd_canary_variable7 = frcd_volatile_constant7; \
- double frcd_canary_variable8 = frcd_volatile_constant8;
-
-#define FLOAT_REGS_CORRUPTION_DETECTOR_FINISH() \
- assert (frcd_canary_variable1 == frcd_volatile_constant1); \
- assert (frcd_canary_variable2 == frcd_volatile_constant2); \
- assert (frcd_canary_variable3 == frcd_volatile_constant3); \
- assert (frcd_canary_variable4 == frcd_volatile_constant4); \
- assert (frcd_canary_variable5 == frcd_volatile_constant5); \
- assert (frcd_canary_variable6 == frcd_volatile_constant6); \
- assert (frcd_canary_variable7 == frcd_volatile_constant7); \
- assert (frcd_canary_variable8 == frcd_volatile_constant8);
-
-/* Try to get an aligned memory chunk */
-void *
-aligned_malloc (size_t align, size_t size);
-
-void
-initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb);
+#include <stdlib.h> +#include <config.h> +#include <assert.h> +#include "pixman-private.h" /* For 'inline' definition */ + +#define ARRAY_LENGTH(A) ((int) (sizeof (A) / sizeof ((A) [0]))) + +/* A primitive pseudorandom number generator, + * taken from POSIX.1-2001 example + */ + +extern uint32_t lcg_seed; +#ifdef USE_OPENMP +#pragma omp threadprivate(lcg_seed) +#endif + +static inline uint32_t +lcg_rand (void) +{ + lcg_seed = lcg_seed * 1103515245 + 12345; + return ((uint32_t)(lcg_seed / 65536) % 32768); +} + +static inline void +lcg_srand (uint32_t seed) +{ + lcg_seed = seed; +} + +static inline uint32_t +lcg_rand_n (int max) +{ + return lcg_rand () % max; +} + +static inline uint32_t +lcg_rand_N (int max) +{ + uint32_t lo = lcg_rand (); + uint32_t hi = lcg_rand () << 15; + return (lo | hi) % max; +} + +static inline uint32_t +lcg_rand_u32 (void) +{ + /* This uses the 10/11 most significant bits from the 3 lcg results + * (and mixes them with the low from the adjacent one). + */ + uint32_t lo = lcg_rand() >> -(32 - 15 - 11 * 2); + uint32_t mid = lcg_rand() << (32 - 15 - 11 * 1); + uint32_t hi = lcg_rand() << (32 - 15 - 11 * 0); + + return (hi ^ mid ^ lo); +} + +/* CRC 32 computation + */ +uint32_t +compute_crc32 (uint32_t in_crc32, + const void *buf, + size_t buf_len); + +/* Returns TRUE if running on a little endian system */ +pixman_bool_t +is_little_endian (void); + +/* perform endian conversion of pixel data + */ +void +image_endian_swap (pixman_image_t *img); + +/* Allocate memory that is bounded by protected pages, + * so that out-of-bounds access will cause segfaults + */ +void * +fence_malloc (int64_t len); + +void +fence_free (void *data); + +/* Generate n_bytes random bytes in fence_malloced memory */ +uint8_t * +make_random_bytes (int n_bytes); + +/* Return current time in seconds */ +double +gettime (void); + +uint32_t +get_random_seed (void); + +/* main body of the fuzzer test */ +int +fuzzer_test_main (const char *test_name, + int default_number_of_iterations, + uint32_t expected_checksum, + uint32_t (*test_function)(int testnum, int verbose), + int argc, + const char *argv[]); + +void +fail_after (int seconds, const char *msg); + +/* If possible, enable traps for floating point exceptions */ +void enable_fp_exceptions(void); + +pixman_bool_t +write_png (pixman_image_t *image, const char *filename); + +/* A pair of macros which can help to detect corruption of + * floating point registers after a function call. This may + * happen if _mm_empty() call is forgotten in MMX/SSE2 fast + * path code, or ARM NEON assembly optimized function forgets + * to save/restore d8-d15 registers before use. + */ + +#define FLOAT_REGS_CORRUPTION_DETECTOR_START() \ + static volatile double frcd_volatile_constant1 = 123451; \ + static volatile double frcd_volatile_constant2 = 123452; \ + static volatile double frcd_volatile_constant3 = 123453; \ + static volatile double frcd_volatile_constant4 = 123454; \ + static volatile double frcd_volatile_constant5 = 123455; \ + static volatile double frcd_volatile_constant6 = 123456; \ + static volatile double frcd_volatile_constant7 = 123457; \ + static volatile double frcd_volatile_constant8 = 123458; \ + double frcd_canary_variable1 = frcd_volatile_constant1; \ + double frcd_canary_variable2 = frcd_volatile_constant2; \ + double frcd_canary_variable3 = frcd_volatile_constant3; \ + double frcd_canary_variable4 = frcd_volatile_constant4; \ + double frcd_canary_variable5 = frcd_volatile_constant5; \ + double frcd_canary_variable6 = frcd_volatile_constant6; \ + double frcd_canary_variable7 = frcd_volatile_constant7; \ + double frcd_canary_variable8 = frcd_volatile_constant8; + +#define FLOAT_REGS_CORRUPTION_DETECTOR_FINISH() \ + assert (frcd_canary_variable1 == frcd_volatile_constant1); \ + assert (frcd_canary_variable2 == frcd_volatile_constant2); \ + assert (frcd_canary_variable3 == frcd_volatile_constant3); \ + assert (frcd_canary_variable4 == frcd_volatile_constant4); \ + assert (frcd_canary_variable5 == frcd_volatile_constant5); \ + assert (frcd_canary_variable6 == frcd_volatile_constant6); \ + assert (frcd_canary_variable7 == frcd_volatile_constant7); \ + assert (frcd_canary_variable8 == frcd_volatile_constant8); + +/* Try to get an aligned memory chunk */ +void * +aligned_malloc (size_t align, size_t size); + +void +initialize_palette (pixman_indexed_t *palette, uint32_t depth, int is_rgb); |