C:/Users/Apocalyptica/Documents/Uni/Visualisierung LU/volRendering/Core/jpeglib/jdhuff.h File Reference
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Classes | |
| struct | d_derived_tbl |
| struct | bitread_perm_state |
| struct | bitread_working_state |
Defines | |
| #define | HUFF_LOOKAHEAD 8 |
| #define | BIT_BUF_SIZE 32 |
| #define | BITREAD_STATE_VARS |
| #define | BITREAD_LOAD_STATE(cinfop, permstate) |
| #define | BITREAD_SAVE_STATE(cinfop, permstate) |
| #define | CHECK_BIT_BUFFER(state, nbits, action) |
| #define | GET_BITS(nbits) (((int) (get_buffer >> (bits_left -= (nbits)))) & ((1<<(nbits))-1)) |
| #define | PEEK_BITS(nbits) (((int) (get_buffer >> (bits_left - (nbits)))) & ((1<<(nbits))-1)) |
| #define | DROP_BITS(nbits) (bits_left -= (nbits)) |
| #define | HUFF_DECODE(result, state, htbl, failaction, slowlabel) |
Typedefs | |
| typedef INT32 | bit_buf_type |
Functions | |
| EXTERN (void) jpeg_make_d_derived_tbl JPP((j_decompress_ptr cinfo | |
| EXTERN (boolean) jpeg_fill_bit_buffer JPP((bitread_working_state *state | |
Variables | |
| boolean | isDC |
| boolean int | tblno |
| boolean int d_derived_tbl ** | pdtbl |
| register bit_buf_type | get_buffer |
| register bit_buf_type register int | bits_left |
| register bit_buf_type register int int | nbits |
| register bit_buf_type register int d_derived_tbl * | htbl |
| register bit_buf_type register int d_derived_tbl int | min_bits |
Define Documentation
| #define BIT_BUF_SIZE 32 |
| #define BITREAD_LOAD_STATE | ( | cinfop, | |||
| permstate | ) |
Value:
br_state.cinfo = cinfop; \
br_state.next_input_byte = cinfop->src->next_input_byte; \
br_state.bytes_in_buffer = cinfop->src->bytes_in_buffer; \
get_buffer = permstate.get_buffer; \
bits_left = permstate.bits_left;
| #define BITREAD_SAVE_STATE | ( | cinfop, | |||
| permstate | ) |
Value:
cinfop->src->next_input_byte = br_state.next_input_byte; \
cinfop->src->bytes_in_buffer = br_state.bytes_in_buffer; \
permstate.get_buffer = get_buffer; \
permstate.bits_left = bits_left
| #define BITREAD_STATE_VARS |
Value:
register bit_buf_type get_buffer; \ register int bits_left; \ bitread_working_state br_state
| #define CHECK_BIT_BUFFER | ( | state, | |||
| nbits, | |||||
| action | ) |
Value:
{ if (bits_left < (nbits)) { \
if (! jpeg_fill_bit_buffer(&(state),get_buffer,bits_left,nbits)) \
{ action; } \
get_buffer = (state).get_buffer; bits_left = (state).bits_left; } }
| #define GET_BITS | ( | nbits | ) | (((int) (get_buffer >> (bits_left -= (nbits)))) & ((1<<(nbits))-1)) |
| #define HUFF_DECODE | ( | result, | |||
| state, | |||||
| htbl, | |||||
| failaction, | |||||
| slowlabel | ) |
Value:
{ register int nb, look; \
if (bits_left < HUFF_LOOKAHEAD) { \
if (! jpeg_fill_bit_buffer(&state,get_buffer,bits_left, 0)) {failaction;} \
get_buffer = state.get_buffer; bits_left = state.bits_left; \
if (bits_left < HUFF_LOOKAHEAD) { \
nb = 1; goto slowlabel; \
} \
} \
look = PEEK_BITS(HUFF_LOOKAHEAD); \
if ((nb = htbl->look_nbits[look]) != 0) { \
DROP_BITS(nb); \
result = htbl->look_sym[look]; \
} else { \
nb = HUFF_LOOKAHEAD+1; \
slowlabel: \
if ((result=jpeg_huff_decode(&state,get_buffer,bits_left,htbl,nb)) < 0) \
{ failaction; } \
get_buffer = state.get_buffer; bits_left = state.bits_left; \
} \
}
| #define HUFF_LOOKAHEAD 8 |
| #define PEEK_BITS | ( | nbits | ) | (((int) (get_buffer >> (bits_left - (nbits)))) & ((1<<(nbits))-1)) |
Typedef Documentation
| typedef INT32 bit_buf_type |
Function Documentation
| EXTERN | ( | boolean | ) |
| EXTERN | ( | void | ) |
Variable Documentation
| register bit_buf_type register int bits_left |
| register bit_buf_type get_buffer |
| register bit_buf_type register int d_derived_tbl* htbl |
| register bit_buf_type register int d_derived_tbl int min_bits |
| register bit_buf_type register int int nbits |
| boolean int d_derived_tbl** pdtbl |
