Commit cd23eff8 authored by Steven Cole's avatar Steven Cole Committed by Linus Torvalds

[PATCH] Yet more K&R to ANSI C conversions

More K&R to ANSI C conversions for lib/zlib_deflate.
parent 18e5275f
...@@ -176,10 +176,11 @@ local void copy_block OF((deflate_state *s, charf *buf, unsigned len, ...@@ -176,10 +176,11 @@ local void copy_block OF((deflate_state *s, charf *buf, unsigned len,
#ifdef DEBUG_ZLIB #ifdef DEBUG_ZLIB
local void send_bits OF((deflate_state *s, int value, int length)); local void send_bits OF((deflate_state *s, int value, int length));
local void send_bits(s, value, length) local void send_bits(
deflate_state *s; deflate_state *s,
int value; /* value to send */ int value, /* value to send */
int length; /* number of bits */ int length /* number of bits */
)
{ {
Tracevv((stderr," l %2d v %4x ", length, value)); Tracevv((stderr," l %2d v %4x ", length, value));
Assert(length > 0 && length <= 15, "invalid length"); Assert(length > 0 && length <= 15, "invalid length");
...@@ -369,10 +370,11 @@ local void init_block(s) ...@@ -369,10 +370,11 @@ local void init_block(s)
* when the heap property is re-established (each father smaller than its * when the heap property is re-established (each father smaller than its
* two sons). * two sons).
*/ */
local void pqdownheap(s, tree, k) local void pqdownheap(
deflate_state *s; deflate_state *s,
ct_data *tree; /* the tree to restore */ ct_data *tree, /* the tree to restore */
int k; /* node to move down */ int k /* node to move down */
)
{ {
int v = s->heap[k]; int v = s->heap[k];
int j = k << 1; /* left son of k */ int j = k << 1; /* left son of k */
...@@ -404,9 +406,10 @@ local void pqdownheap(s, tree, k) ...@@ -404,9 +406,10 @@ local void pqdownheap(s, tree, k)
* The length opt_len is updated; static_len is also updated if stree is * The length opt_len is updated; static_len is also updated if stree is
* not null. * not null.
*/ */
local void gen_bitlen(s, desc) local void gen_bitlen(
deflate_state *s; deflate_state *s,
tree_desc *desc; /* the tree descriptor */ tree_desc *desc /* the tree descriptor */
)
{ {
ct_data *tree = desc->dyn_tree; ct_data *tree = desc->dyn_tree;
int max_code = desc->max_code; int max_code = desc->max_code;
...@@ -491,10 +494,11 @@ local void gen_bitlen(s, desc) ...@@ -491,10 +494,11 @@ local void gen_bitlen(s, desc)
* OUT assertion: the field code is set for all tree elements of non * OUT assertion: the field code is set for all tree elements of non
* zero code length. * zero code length.
*/ */
local void gen_codes (tree, max_code, bl_count) local void gen_codes(
ct_data *tree; /* the tree to decorate */ ct_data *tree, /* the tree to decorate */
int max_code; /* largest code with non zero frequency */ int max_code, /* largest code with non zero frequency */
ushf *bl_count; /* number of codes at each bit length */ ushf *bl_count /* number of codes at each bit length */
)
{ {
ush next_code[MAX_BITS+1]; /* next code value for each bit length */ ush next_code[MAX_BITS+1]; /* next code value for each bit length */
ush code = 0; /* running code value */ ush code = 0; /* running code value */
...@@ -533,9 +537,10 @@ local void gen_codes (tree, max_code, bl_count) ...@@ -533,9 +537,10 @@ local void gen_codes (tree, max_code, bl_count)
* and corresponding code. The length opt_len is updated; static_len is * and corresponding code. The length opt_len is updated; static_len is
* also updated if stree is not null. The field max_code is set. * also updated if stree is not null. The field max_code is set.
*/ */
local void build_tree(s, desc) local void build_tree(
deflate_state *s; deflate_state *s,
tree_desc *desc; /* the tree descriptor */ tree_desc *desc /* the tree descriptor */
)
{ {
ct_data *tree = desc->dyn_tree; ct_data *tree = desc->dyn_tree;
const ct_data *stree = desc->stat_desc->static_tree; const ct_data *stree = desc->stat_desc->static_tree;
...@@ -620,10 +625,11 @@ local void build_tree(s, desc) ...@@ -620,10 +625,11 @@ local void build_tree(s, desc)
* Scan a literal or distance tree to determine the frequencies of the codes * Scan a literal or distance tree to determine the frequencies of the codes
* in the bit length tree. * in the bit length tree.
*/ */
local void scan_tree (s, tree, max_code) local void scan_tree(
deflate_state *s; deflate_state *s,
ct_data *tree; /* the tree to be scanned */ ct_data *tree, /* the tree to be scanned */
int max_code; /* and its largest code of non zero frequency */ int max_code /* and its largest code of non zero frequency */
)
{ {
int n; /* iterates over all tree elements */ int n; /* iterates over all tree elements */
int prevlen = -1; /* last emitted length */ int prevlen = -1; /* last emitted length */
...@@ -665,10 +671,11 @@ local void scan_tree (s, tree, max_code) ...@@ -665,10 +671,11 @@ local void scan_tree (s, tree, max_code)
* Send a literal or distance tree in compressed form, using the codes in * Send a literal or distance tree in compressed form, using the codes in
* bl_tree. * bl_tree.
*/ */
local void send_tree (s, tree, max_code) local void send_tree(
deflate_state *s; deflate_state *s,
ct_data *tree; /* the tree to be scanned */ ct_data *tree, /* the tree to be scanned */
int max_code; /* and its largest code of non zero frequency */ int max_code /* and its largest code of non zero frequency */
)
{ {
int n; /* iterates over all tree elements */ int n; /* iterates over all tree elements */
int prevlen = -1; /* last emitted length */ int prevlen = -1; /* last emitted length */
...@@ -716,8 +723,9 @@ local void send_tree (s, tree, max_code) ...@@ -716,8 +723,9 @@ local void send_tree (s, tree, max_code)
* Construct the Huffman tree for the bit lengths and return the index in * Construct the Huffman tree for the bit lengths and return the index in
* bl_order of the last bit length code to send. * bl_order of the last bit length code to send.
*/ */
local int build_bl_tree(s) local int build_bl_tree(
deflate_state *s; deflate_state *s
)
{ {
int max_blindex; /* index of last bit length code of non zero freq */ int max_blindex; /* index of last bit length code of non zero freq */
...@@ -751,9 +759,12 @@ local int build_bl_tree(s) ...@@ -751,9 +759,12 @@ local int build_bl_tree(s)
* lengths of the bit length codes, the literal tree and the distance tree. * lengths of the bit length codes, the literal tree and the distance tree.
* IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
*/ */
local void send_all_trees(s, lcodes, dcodes, blcodes) local void send_all_trees(
deflate_state *s; deflate_state *s,
int lcodes, dcodes, blcodes; /* number of codes for each tree */ int lcodes, /* number of codes for each tree */
int dcodes, /* number of codes for each tree */
int blcodes /* number of codes for each tree */
)
{ {
int rank; /* index in bl_order */ int rank; /* index in bl_order */
...@@ -780,11 +791,12 @@ local void send_all_trees(s, lcodes, dcodes, blcodes) ...@@ -780,11 +791,12 @@ local void send_all_trees(s, lcodes, dcodes, blcodes)
/* =========================================================================== /* ===========================================================================
* Send a stored block * Send a stored block
*/ */
void zlib_tr_stored_block(s, buf, stored_len, eof) void zlib_tr_stored_block(
deflate_state *s; deflate_state *s,
charf *buf; /* input block */ charf *buf, /* input block */
ulg stored_len; /* length of input block */ ulg stored_len, /* length of input block */
int eof; /* true if this is the last block for a file */ int eof /* true if this is the last block for a file */
)
{ {
send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */ send_bits(s, (STORED_BLOCK<<1)+eof, 3); /* send block type */
s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L; s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
...@@ -795,8 +807,9 @@ void zlib_tr_stored_block(s, buf, stored_len, eof) ...@@ -795,8 +807,9 @@ void zlib_tr_stored_block(s, buf, stored_len, eof)
/* Send just the `stored block' type code without any length bytes or data. /* Send just the `stored block' type code without any length bytes or data.
*/ */
void zlib_tr_stored_type_only(s) void zlib_tr_stored_type_only(
deflate_state *s; deflate_state *s
)
{ {
send_bits(s, (STORED_BLOCK << 1), 3); send_bits(s, (STORED_BLOCK << 1), 3);
bi_windup(s); bi_windup(s);
...@@ -815,8 +828,9 @@ void zlib_tr_stored_type_only(s) ...@@ -815,8 +828,9 @@ void zlib_tr_stored_type_only(s)
* To simplify the code, we assume the worst case of last real code encoded * To simplify the code, we assume the worst case of last real code encoded
* on one bit only. * on one bit only.
*/ */
void zlib_tr_align(s) void zlib_tr_align(
deflate_state *s; deflate_state *s
)
{ {
send_bits(s, STATIC_TREES<<1, 3); send_bits(s, STATIC_TREES<<1, 3);
send_code(s, END_BLOCK, static_ltree); send_code(s, END_BLOCK, static_ltree);
...@@ -841,11 +855,12 @@ void zlib_tr_align(s) ...@@ -841,11 +855,12 @@ void zlib_tr_align(s)
* trees or store, and output the encoded block to the zip file. This function * trees or store, and output the encoded block to the zip file. This function
* returns the total compressed length for the file so far. * returns the total compressed length for the file so far.
*/ */
ulg zlib_tr_flush_block(s, buf, stored_len, eof) ulg zlib_tr_flush_block(
deflate_state *s; deflate_state *s,
charf *buf; /* input block, or NULL if too old */ charf *buf, /* input block, or NULL if too old */
ulg stored_len; /* length of input block */ ulg stored_len, /* length of input block */
int eof; /* true if this is the last block for a file */ int eof /* true if this is the last block for a file */
)
{ {
ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */ ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
int max_blindex = 0; /* index of last bit length code of non zero freq */ int max_blindex = 0; /* index of last bit length code of non zero freq */
...@@ -953,10 +968,11 @@ ulg zlib_tr_flush_block(s, buf, stored_len, eof) ...@@ -953,10 +968,11 @@ ulg zlib_tr_flush_block(s, buf, stored_len, eof)
* Save the match info and tally the frequency counts. Return true if * Save the match info and tally the frequency counts. Return true if
* the current block must be flushed. * the current block must be flushed.
*/ */
int zlib_tr_tally (s, dist, lc) int zlib_tr_tally(
deflate_state *s; deflate_state *s,
unsigned dist; /* distance of matched string */ unsigned dist, /* distance of matched string */
unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ unsigned lc /* match length-MIN_MATCH or unmatched char (if dist==0) */
)
{ {
s->d_buf[s->last_lit] = (ush)dist; s->d_buf[s->last_lit] = (ush)dist;
s->l_buf[s->last_lit++] = (uch)lc; s->l_buf[s->last_lit++] = (uch)lc;
...@@ -1001,10 +1017,11 @@ int zlib_tr_tally (s, dist, lc) ...@@ -1001,10 +1017,11 @@ int zlib_tr_tally (s, dist, lc)
/* =========================================================================== /* ===========================================================================
* Send the block data compressed using the given Huffman trees * Send the block data compressed using the given Huffman trees
*/ */
local void compress_block(s, ltree, dtree) local void compress_block(
deflate_state *s; deflate_state *s,
ct_data *ltree; /* literal tree */ ct_data *ltree, /* literal tree */
ct_data *dtree; /* distance tree */ ct_data *dtree /* distance tree */
)
{ {
unsigned dist; /* distance of matched string */ unsigned dist; /* distance of matched string */
int lc; /* match length or unmatched char (if dist == 0) */ int lc; /* match length or unmatched char (if dist == 0) */
...@@ -1054,8 +1071,9 @@ local void compress_block(s, ltree, dtree) ...@@ -1054,8 +1071,9 @@ local void compress_block(s, ltree, dtree)
* IN assertion: the fields freq of dyn_ltree are set and the total of all * IN assertion: the fields freq of dyn_ltree are set and the total of all
* frequencies does not exceed 64K (to fit in an int on 16 bit machines). * frequencies does not exceed 64K (to fit in an int on 16 bit machines).
*/ */
local void set_data_type(s) local void set_data_type(
deflate_state *s; deflate_state *s
)
{ {
int n = 0; int n = 0;
unsigned ascii_freq = 0; unsigned ascii_freq = 0;
...@@ -1070,11 +1088,12 @@ local void set_data_type(s) ...@@ -1070,11 +1088,12 @@ local void set_data_type(s)
* Copy a stored block, storing first the length and its * Copy a stored block, storing first the length and its
* one's complement if requested. * one's complement if requested.
*/ */
local void copy_block(s, buf, len, header) local void copy_block(
deflate_state *s; deflate_state *s,
charf *buf; /* the input data */ charf *buf, /* the input data */
unsigned len; /* its length */ unsigned len, /* its length */
int header; /* true if block header must be written */ int header /* true if block header must be written */
)
{ {
bi_windup(s); /* align on byte boundary */ bi_windup(s); /* align on byte boundary */
s->last_eob_len = 8; /* enough lookahead for inflate */ s->last_eob_len = 8; /* enough lookahead for inflate */
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment