X-Git-Url: https://git.sesse.net/?p=fjl;a=blobdiff_plain;f=dehuff.h;h=728c62315c5570c9b3fb6f1771368d219330a2a3;hp=d93e7931ee17f081e734e7ff5397dd2f973f200d;hb=0b02847989970a190c2cfaec4d1abaa1f616284a;hpb=618548d1f2e076a3da21368e708cf887dcbd20d2 diff --git a/dehuff.h b/dehuff.h index d93e793..728c623 100644 --- a/dehuff.h +++ b/dehuff.h @@ -5,7 +5,8 @@ #include #include -#include "input.h" +#include "bytesource.h" +#include "bitsource.h" // About 99% of all Huffman codes are <= 8 bits long (see codelen.txt), // and it's what libjpeg uses. Thus, it seems like a reasonable size. @@ -13,11 +14,6 @@ #define DEHUF_TABLE_SIZE (1 << DEHUF_TABLE_BITS) static const int DEHUF_SLOW_PATH = -1; -// A function to read bytes from some input source. The bytes should be -// already unstuffed (and thus without markers). -// A return value of -1 indicates error, a return value of 0 indicates EOF. -typedef ssize_t (raw_input_func_t)(void*, uint8_t*, size_t); - struct huffman_table { unsigned num_codes[17]; // BITS unsigned char codes[256]; // HUFFVAL @@ -47,13 +43,11 @@ enum coefficient_class { typedef struct huffman_table huffman_tables_t[NUM_COEFF_CLASSES][4]; // Read Huffman tables from a stream, and compute the derived values. -void read_huffman_tables(huffman_tables_t* dst, raw_input_func_t* input_func, void* userdata); +void read_huffman_tables(huffman_tables_t* dst, input_func_t* input_func, void* userdata); unsigned read_huffman_symbol_slow_path(const struct huffman_table* table, struct bit_source* source); -#include - static inline unsigned read_huffman_symbol(const struct huffman_table* table, struct bit_source* source) {