]> wimlib.net Git - wimlib/blobdiff - include/wimlib/compress_common.h
Split prefetch() into prefetchr() and prefetchw()
[wimlib] / include / wimlib / compress_common.h
index 14b32f488b488a0084e4a4ac31a72f4769932c5f..7913a138734925aaae2a01a965390e33948fe7f7 100644 (file)
@@ -9,89 +9,11 @@
 
 #include "wimlib/types.h"
 
-/* Variable type that can represent all possible window positions.  */
-#ifndef INPUT_IDX_T_DEFINED
-#define INPUT_IDX_T_DEFINED
-typedef u32 input_idx_t;
-#endif
-
-/* Structure to keep track of the current state sending bits and bytes to the
- * compressed output buffer.  */
-struct output_bitstream {
-
-       /* Variable that holds up to 16 bits that haven't yet been flushed to
-        * the output.  */
-       u16 bitbuf;
-
-       /* Number of free bits in @bitbuf; that is, 16 minus the number of valid
-        * bits in @bitbuf.  */
-       unsigned free_bits;
-
-       /* Pointer to the start of the output buffer.  */
-       u8 *output_start;
-
-       /* Position at which to write the next 16 bits.  */
-       u8 *bit_output;
-
-       /* Next position to write 16 bits, after they are written to bit_output.
-        * This is after @next_bit_output and may be separated from @bit_output
-        * by literal bytes.  */
-       u8 *next_bit_output;
-
-       /* Next position to write literal bytes.  This is after @bit_output and
-        * @next_bit_output, and may be separated from them by literal bytes.
-        */
-       u8 *output;
-
-       /* Number of bytes remaining in the @output buffer.  */
-       input_idx_t bytes_remaining;
-
-       /* Set to true if the buffer has been exhausted.  */
-       bool overrun;
-};
-
-extern void
-init_output_bitstream(struct output_bitstream *ostream,
-                     void *data, unsigned num_bytes);
-
-extern input_idx_t
-flush_output_bitstream(struct output_bitstream *ostream);
-
-extern void
-bitstream_put_bits(struct output_bitstream *ostream,
-                  u32 bits, unsigned num_bits);
-
-extern void
-bitstream_put_byte(struct output_bitstream *ostream, u8 n);
-
-struct lz_params {
-       unsigned min_match;
-       unsigned max_match;
-       unsigned max_offset;
-       unsigned nice_match;
-       unsigned good_match;
-       unsigned max_chain_len;
-       unsigned max_lazy_match;
-       unsigned too_far;
-};
-
-typedef void (*lz_record_match_t)(unsigned len, unsigned offset, void *ctx);
-typedef void (*lz_record_literal_t)(u8 lit, void *ctx);
-
-extern void
-lz_analyze_block(const u8 window[restrict],
-                input_idx_t window_size,
-                lz_record_match_t record_match,
-                lz_record_literal_t record_literal,
-                void *record_ctx,
-                const struct lz_params *params,
-                input_idx_t prev_tab[restrict]);
-
 extern void
 make_canonical_huffman_code(unsigned num_syms,
                            unsigned max_codeword_len,
-                           const input_idx_t freq_tab[restrict],
+                           const u32 freq_tab[restrict],
                            u8 lens[restrict],
-                           u16 codewords[restrict]);
+                           u32 codewords[restrict]);
 
-#endif /* _WIMLIB_COMPRESS_H */
+#endif /* _WIMLIB_COMPRESS_COMMON_H */