mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
2.7 KiB
73 lines
2.7 KiB
typedef struct {
|
|
__int64 put_buffer_64; //mmx bit-accumulation buffer
|
|
INT32 put_buffer; /* current bit-accumulation buffer */
|
|
int put_bits; /* # of bits now in it */
|
|
int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */
|
|
} savable_state;
|
|
|
|
/* This macro is to work around compilers with missing or broken
|
|
* structure assignment. You'll need to fix this code if you have
|
|
* such a compiler and you change MAX_COMPS_IN_SCAN.
|
|
*/
|
|
|
|
//#ifndef NO_STRUCT_ASSIGN
|
|
//#define ASSIGN_STATE(dest,src) ((dest) = (src))
|
|
//#else
|
|
// pull out the assignments to put_buffer and put_bits since they are implentation dependent
|
|
#if MAX_COMPS_IN_SCAN == 4
|
|
#define ASSIGN_STATE(dest,src) \
|
|
((dest).last_dc_val[0] = (src).last_dc_val[0], \
|
|
(dest).last_dc_val[1] = (src).last_dc_val[1], \
|
|
(dest).last_dc_val[2] = (src).last_dc_val[2], \
|
|
(dest).last_dc_val[3] = (src).last_dc_val[3])
|
|
/*((dest).put_buffer = (src).put_buffer, \
|
|
(dest).put_bits = (src).put_bits, */
|
|
#endif
|
|
//#endif
|
|
|
|
|
|
typedef struct {
|
|
struct jpeg_entropy_encoder pub; /* public fields */
|
|
|
|
savable_state saved; /* Bit buffer & DC state at start of MCU */
|
|
|
|
/* These fields are NOT loaded into local working state. */
|
|
unsigned int restarts_to_go; /* MCUs left in this restart interval */
|
|
int next_restart_num; /* next restart number to write (0-7) */
|
|
|
|
/* Pointers to derived tables (these workspaces have image lifespan) */
|
|
c_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS];
|
|
c_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS];
|
|
|
|
#ifdef ENTROPY_OPT_SUPPORTED /* Statistics tables for optimization */
|
|
long * dc_count_ptrs[NUM_HUFF_TBLS];
|
|
long * ac_count_ptrs[NUM_HUFF_TBLS];
|
|
#endif
|
|
} huff_entropy_encoder;
|
|
|
|
typedef huff_entropy_encoder * huff_entropy_ptr;
|
|
|
|
/* Working state while writing an MCU.
|
|
* This struct contains all the fields that are needed by subroutines.
|
|
*/
|
|
|
|
typedef struct {
|
|
// make the next two variables global for easy access in mmx version
|
|
// JOCTET * next_output_byte; /* => next byte to write in buffer */
|
|
// size_t free_in_buffer; /* # of byte spaces remaining in buffer */
|
|
// savable_state cur; /* Current bit buffer & DC state */
|
|
// flatten (instantiate) savable state here
|
|
__int64 put_buffer_64; // mmx bit accumulation buffer
|
|
INT32 put_buffer; /* current bit-accumulation buffer */
|
|
int put_bits; /* # of bits now in it */
|
|
int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */
|
|
j_compress_ptr cinfo; /* dump_buffer needs access to this */
|
|
} working_state;
|
|
//global vaiables
|
|
__int64 put_buffer_64;
|
|
// INT32 put_buffer;
|
|
int put_bits;
|
|
JOCTET * next_output_byte; /* => next byte to write in buffer */
|
|
size_t free_in_buffer; /* # of byte spaces remaining in buffer */
|
|
//boolean mmx_cpu=1;
|
|
|