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Macros | Functions | Variables
jutils.cpp File Reference
#include "jinclude.h"
#include "mrpt_jpeglib.h"
Include dependency graph for jutils.cpp:

Go to the source code of this file.

Macros

#define JPEG_INTERNALS
 
#define FMEMCOPY(dest, src, size)   MEMCOPY(dest,src,size)
 
#define FMEMZERO(target, size)   MEMZERO(target,size)
 

Functions

 jdiv_round_up (long a, long b)
 
 jround_up (long a, long b)
 
 jcopy_sample_rows (JSAMPARRAY input_array, int source_row, JSAMPARRAY output_array, int dest_row, int num_rows, JDIMENSION num_cols)
 
 jcopy_block_row (JBLOCKROW input_row, JBLOCKROW output_row, JDIMENSION num_blocks)
 
 jzero_far (void FAR *target, size_t bytestozero)
 

Variables

const int jpeg_natural_order [DCTSIZE2+16]
 

Macro Definition Documentation

◆ FMEMCOPY

#define FMEMCOPY (   dest,
  src,
  size 
)    MEMCOPY(dest,src,size)

Definition at line 96 of file jutils.cpp.

Referenced by jcopy_block_row(), and jcopy_sample_rows().

◆ FMEMZERO

#define FMEMZERO (   target,
  size 
)    MEMZERO(target,size)

Definition at line 97 of file jutils.cpp.

Referenced by jzero_far().

◆ JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 10 of file jutils.cpp.

Function Documentation

◆ jcopy_block_row()

jcopy_block_row ( JBLOCKROW  input_row,
JBLOCKROW  output_row,
JDIMENSION  num_blocks 
)

Definition at line 141 of file jutils.cpp.

References DCTSIZE2, FMEMCOPY, num_blocks, output_row, and SIZEOF.

Referenced by decompress_smooth_data().

◆ jcopy_sample_rows()

jcopy_sample_rows ( JSAMPARRAY  input_array,
int  source_row,
JSAMPARRAY  output_array,
int  dest_row,
int  num_rows,
JDIMENSION  num_cols 
)

◆ jdiv_round_up()

jdiv_round_up ( long  a,
long  b 
)

Definition at line 68 of file jutils.cpp.

Referenced by initial_setup(), jpeg_calc_output_dimensions(), and per_scan_setup().

◆ jround_up()

jround_up ( long  a,
long  b 
)

◆ jzero_far()

jzero_far ( void FAR target,
size_t  bytestozero 
)

Variable Documentation

◆ jpeg_natural_order

const int jpeg_natural_order[DCTSIZE2+16]
Initial value:
= {
0, 1, 8, 16, 9, 2, 3, 10,
17, 24, 32, 25, 18, 11, 4, 5,
12, 19, 26, 33, 40, 48, 41, 34,
27, 20, 13, 6, 7, 14, 21, 28,
35, 42, 49, 56, 57, 50, 43, 36,
29, 22, 15, 23, 30, 37, 44, 51,
58, 59, 52, 45, 38, 31, 39, 46,
53, 60, 61, 54, 47, 55, 62, 63,
63, 63, 63, 63, 63, 63, 63, 63,
63, 63, 63, 63, 63, 63, 63, 63
}

Definition at line 49 of file jutils.cpp.

Referenced by decode_mcu(), decode_mcu_AC_first(), decode_mcu_AC_refine(), emit_dqt(), encode_mcu_AC_first(), encode_mcu_AC_refine(), encode_one_block(), get_dqt(), and htest_one_block().




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