OpenJPEG  1.5.1
MISC - Miscellaneous internal functions

Exported functions

double opj_clock (void)
 Difference in successive opj_clock() calls tells you the elapsed time. More...
 

Exported functions

void * memalign (size_t, size_t)
 
#define opj_malloc(size)   calloc(1, size)
 Allocate an uninitialized memory block. More...
 
#define opj_calloc(num, size)   calloc(num, size)
 Allocate a memory block with elements initialized to 0. More...
 
#define HAVE_MEMALIGN
 Allocate memory aligned to a 16 byte boundry. More...
 
#define opj_aligned_malloc(size)   malloc(size)
 
#define opj_aligned_malloc(size)   memalign(16, (size))
 
#define opj_aligned_free(m)   free(m)
 
#define opj_aligned_free(m)   free(m)
 
#define opj_realloc(m, s)   realloc(m, s)
 Reallocate memory blocks. More...
 
#define opj_free(m)   free(m)
 Deallocates or frees a memory block. More...
 

Detailed Description

Macro Definition Documentation

#define HAVE_MEMALIGN

Allocate memory aligned to a 16 byte boundry.

Parameters
sizeBytes to allocate
Returns
Returns a void pointer to the allocated space, or NULL if there is insufficient memory available
#define opj_aligned_free (   m)    free(m)
#define opj_aligned_free (   m)    free(m)
#define opj_aligned_malloc (   size)    malloc(size)
#define opj_aligned_malloc (   size)    memalign(16, (size))
#define opj_calloc (   num,
  size 
)    calloc(num, size)

Allocate a memory block with elements initialized to 0.

Parameters
numBlocks to allocate
sizeBytes per block to allocate
Returns
Returns a void pointer to the allocated space, or NULL if there is insufficient memory available

Referenced by j2k_create_compress(), j2k_create_decompress(), j2k_read_siz(), j2k_setup_decoder(), j2k_setup_encoder(), jp2_create_decompress(), opj_create_compress(), opj_create_decompress(), opj_image_create(), opj_image_create0(), pi_create_decode(), pi_initialise_encode(), tcd_encode_tile(), tcd_init_encode(), tcd_malloc_decode(), tcd_malloc_encode(), tgt_create(), write_cidx(), write_phix(), write_ppix(), and write_thix().

#define opj_free (   m)    free(m)
#define opj_malloc (   size)    calloc(1, size)
#define opj_realloc (   m,
 
)    realloc(m, s)

Reallocate memory blocks.

Parameters
mPointer to previously allocated memory block
sNew size in bytes
Returns
Returns a void pointer to the reallocated (and possibly moved) memory block

Referenced by j2k_add_marker(), j2k_add_mhmarker(), j2k_add_tlmarker(), j2k_read_ppm(), j2k_read_ppt(), j2k_read_sod(), j2k_read_sot(), mqc_init_dec(), t2_decode_packet(), and t2_init_seg().

Function Documentation

void* memalign ( size_t  ,
size_t   
)
double opj_clock ( void  )

Difference in successive opj_clock() calls tells you the elapsed time.

Returns
Returns time in seconds

Referenced by jpwl_dump_marks(), tcd_decode_tile(), and tcd_encode_tile().