repos/blastem: zlib/gzwrite.c annotate

annotate zlib/gzwrite.c @ 1971:80920c21bb52

Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame

author	Michael Pavone <pavone@retrodev.com>
date	Fri, 08 May 2020 11:40:30 -0700
parents	00d788dac91a
children

rev	line source
1530 00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	1 /* gzwrite.c -- zlib functions for writing gzip files
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	2 * Copyright (C) 2004-2017 Mark Adler
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	3 * For conditions of distribution and use, see copyright notice in zlib.h
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	4 */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	5
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	6 #include "gzguts.h"
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	7
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	8 /* Local functions */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	9 local int gz_init OF((gz_statep));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	10 local int gz_comp OF((gz_statep, int));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	11 local int gz_zero OF((gz_statep, z_off64_t));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	12 local z_size_t gz_write OF((gz_statep, voidpc, z_size_t));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	13
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	14 /* Initialize state for writing a gzip file. Mark initialization by setting
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	15 state->size to non-zero. Return -1 on a memory allocation failure, or 0 on
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	16 success. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	17 local int gz_init(state)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	18 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	19 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	20 int ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	21 z_streamp strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	22
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	23 /* allocate input buffer (double size for gzprintf) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	24 state->in = (unsigned char *)malloc(state->want << 1);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	25 if (state->in == NULL) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	26 gz_error(state, Z_MEM_ERROR, "out of memory");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	27 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	28 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	29
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	30 /* only need output buffer and deflate state if compressing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	31 if (!state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	32 /* allocate output buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	33 state->out = (unsigned char *)malloc(state->want);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	34 if (state->out == NULL) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	35 free(state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	36 gz_error(state, Z_MEM_ERROR, "out of memory");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	37 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	38 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	39
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	40 /* allocate deflate memory, set up for gzip compression */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	41 strm->zalloc = Z_NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	42 strm->zfree = Z_NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	43 strm->opaque = Z_NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	44 ret = deflateInit2(strm, state->level, Z_DEFLATED,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	45 MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	46 if (ret != Z_OK) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	47 free(state->out);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	48 free(state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	49 gz_error(state, Z_MEM_ERROR, "out of memory");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	50 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	51 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	52 strm->next_in = NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	53 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	54
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	55 /* mark state as initialized */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	56 state->size = state->want;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	57
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	58 /* initialize write buffer if compressing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	59 if (!state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	60 strm->avail_out = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	61 strm->next_out = state->out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	62 state->x.next = strm->next_out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	63 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	64 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	65 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	66
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	67 /* Compress whatever is at avail_in and next_in and write to the output file.
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	68 Return -1 if there is an error writing to the output file or if gz_init()
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	69 fails to allocate memory, otherwise 0. flush is assumed to be a valid
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	70 deflate() flush value. If flush is Z_FINISH, then the deflate() state is
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	71 reset to start a new gzip stream. If gz->direct is true, then simply write
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	72 to the output file without compressing, and ignore flush. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	73 local int gz_comp(state, flush)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	74 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	75 int flush;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	76 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	77 int ret, writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	78 unsigned have, put, max = ((unsigned)-1 >> 2) + 1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	79 z_streamp strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	80
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	81 /* allocate memory if this is the first time through */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	82 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	83 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	84
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	85 /* write directly if requested */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	86 if (state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	87 while (strm->avail_in) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	88 put = strm->avail_in > max ? max : strm->avail_in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	89 writ = write(state->fd, strm->next_in, put);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	90 if (writ < 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	91 gz_error(state, Z_ERRNO, zstrerror());
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	92 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	93 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	94 strm->avail_in -= (unsigned)writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	95 strm->next_in += writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	96 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	97 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	98 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	99
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	100 /* run deflate() on provided input until it produces no more output */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	101 ret = Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	102 do {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	103 /* write out current buffer contents if full, or if flushing, but if
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	104 doing Z_FINISH then don't write until we get to Z_STREAM_END */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	105 if (strm->avail_out == 0 \|\| (flush != Z_NO_FLUSH &&
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	106 (flush != Z_FINISH \|\| ret == Z_STREAM_END))) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	107 while (strm->next_out > state->x.next) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	108 put = strm->next_out - state->x.next > (int)max ? max :
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	109 (unsigned)(strm->next_out - state->x.next);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	110 writ = write(state->fd, state->x.next, put);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	111 if (writ < 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	112 gz_error(state, Z_ERRNO, zstrerror());
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	113 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	114 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	115 state->x.next += writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	116 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	117 if (strm->avail_out == 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	118 strm->avail_out = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	119 strm->next_out = state->out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	120 state->x.next = state->out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	121 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	122 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	123
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	124 /* compress */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	125 have = strm->avail_out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	126 ret = deflate(strm, flush);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	127 if (ret == Z_STREAM_ERROR) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	128 gz_error(state, Z_STREAM_ERROR,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	129 "internal error: deflate stream corrupt");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	130 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	131 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	132 have -= strm->avail_out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	133 } while (have);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	134
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	135 /* if that completed a deflate stream, allow another to start */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	136 if (flush == Z_FINISH)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	137 deflateReset(strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	138
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	139 /* all done, no errors */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	140 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	141 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	142
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	143 /* Compress len zeros to output. Return -1 on a write error or memory
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	144 allocation failure by gz_comp(), or 0 on success. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	145 local int gz_zero(state, len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	146 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	147 z_off64_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	148 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	149 int first;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	150 unsigned n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	151 z_streamp strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	152
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	153 /* consume whatever's left in the input buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	154 if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	155 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	156
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	157 /* compress len zeros (len guaranteed > 0) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	158 first = 1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	159 while (len) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	160 n = GT_OFF(state->size) \|\| (z_off64_t)state->size > len ?
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	161 (unsigned)len : state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	162 if (first) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	163 memset(state->in, 0, n);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	164 first = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	165 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	166 strm->avail_in = n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	167 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	168 state->x.pos += n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	169 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	170 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	171 len -= n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	172 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	173 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	174 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	175
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	176 /* Write len bytes from buf to file. Return the number of bytes written. If
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	177 the returned value is less than len, then there was an error. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	178 local z_size_t gz_write(state, buf, len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	179 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	180 voidpc buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	181 z_size_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	182 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	183 z_size_t put = len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	184
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	185 /* if len is zero, avoid unnecessary operations */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	186 if (len == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	187 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	188
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	189 /* allocate memory if this is the first time through */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	190 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	191 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	192
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	193 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	194 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	195 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	196 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	197 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	198 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	199
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	200 /* for small len, copy to input buffer, otherwise compress directly */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	201 if (len < state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	202 /* copy to input buffer, compress when full */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	203 do {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	204 unsigned have, copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	205
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	206 if (state->strm.avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	207 state->strm.next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	208 have = (unsigned)((state->strm.next_in + state->strm.avail_in) -
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	209 state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	210 copy = state->size - have;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	211 if (copy > len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	212 copy = len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	213 memcpy(state->in + have, buf, copy);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	214 state->strm.avail_in += copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	215 state->x.pos += copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	216 buf = (const char *)buf + copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	217 len -= copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	218 if (len && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	219 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	220 } while (len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	221 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	222 else {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	223 /* consume whatever's left in the input buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	224 if (state->strm.avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	225 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	226
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	227 /* directly compress user buffer to file */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	228 state->strm.next_in = (z_const Bytef *)buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	229 do {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	230 unsigned n = (unsigned)-1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	231 if (n > len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	232 n = len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	233 state->strm.avail_in = n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	234 state->x.pos += n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	235 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	236 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	237 len -= n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	238 } while (len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	239 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	240
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	241 /* input was all buffered or compressed */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	242 return put;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	243 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	244
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	245 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	246 int ZEXPORT gzwrite(file, buf, len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	247 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	248 voidpc buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	249 unsigned len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	250 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	251 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	252
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	253 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	254 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	255 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	256 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	257
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	258 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	259 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	260 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	261
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	262 /* since an int is returned, make sure len fits in one, otherwise return
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	263 with an error (this avoids a flaw in the interface) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	264 if ((int)len < 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	265 gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	266 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	267 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	268
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	269 /* write len bytes from buf (the return value will fit in an int) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	270 return (int)gz_write(state, buf, len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	271 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	272
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	273 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	274 z_size_t ZEXPORT gzfwrite(buf, size, nitems, file)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	275 voidpc buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	276 z_size_t size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	277 z_size_t nitems;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	278 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	279 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	280 z_size_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	281 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	282
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	283 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	284 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	285 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	286 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	287
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	288 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	289 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	290 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	291
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	292 /* compute bytes to read -- error on overflow */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	293 len = nitems * size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	294 if (size && len / size != nitems) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	295 gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	296 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	297 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	298
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	299 /* write len bytes to buf, return the number of full items written */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	300 return len ? gz_write(state, buf, len) / size : 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	301 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	302
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	303 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	304 int ZEXPORT gzputc(file, c)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	305 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	306 int c;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	307 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	308 unsigned have;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	309 unsigned char buf[1];
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	310 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	311 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	312
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	313 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	314 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	315 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	316 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	317 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	318
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	319 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	320 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	321 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	322
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	323 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	324 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	325 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	326 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	327 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	328 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	329
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	330 /* try writing to input buffer for speed (state->size == 0 if buffer not
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	331 initialized) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	332 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	333 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	334 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	335 have = (unsigned)((strm->next_in + strm->avail_in) - state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	336 if (have < state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	337 state->in[have] = (unsigned char)c;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	338 strm->avail_in++;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	339 state->x.pos++;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	340 return c & 0xff;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	341 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	342 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	343
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	344 /* no room in buffer or not initialized, use gz_write() */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	345 buf[0] = (unsigned char)c;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	346 if (gz_write(state, buf, 1) != 1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	347 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	348 return c & 0xff;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	349 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	350
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	351 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	352 int ZEXPORT gzputs(file, str)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	353 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	354 const char *str;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	355 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	356 int ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	357 z_size_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	358 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	359
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	360 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	361 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	362 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	363 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	364
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	365 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	366 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	367 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	368
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	369 /* write string */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	370 len = strlen(str);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	371 ret = gz_write(state, str, len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	372 return ret == 0 && len != 0 ? -1 : ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	373 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	374
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	375 #if defined(STDC) \|\| defined(Z_HAVE_STDARG_H)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	376 #include <stdarg.h>
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	377
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	378 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	379 int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	380 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	381 int len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	382 unsigned left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	383 char *next;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	384 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	385 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	386
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	387 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	388 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	389 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	390 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	391 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	392
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	393 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	394 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	395 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	396
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	397 /* make sure we have some buffer space */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	398 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	399 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	400
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	401 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	402 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	403 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	404 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	405 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	406 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	407
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	408 /* do the printf() into the input buffer, put length in len -- the input
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	409 buffer is double-sized just for this function, so there is guaranteed to
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	410 be state->size bytes available after the current contents */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	411 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	412 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	413 next = (char *)(state->in + (strm->next_in - state->in) + strm->avail_in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	414 next[state->size - 1] = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	415 #ifdef NO_vsnprintf
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	416 # ifdef HAS_vsprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	417 (void)vsprintf(next, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	418 for (len = 0; len < state->size; len++)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	419 if (next[len] == 0) break;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	420 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	421 len = vsprintf(next, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	422 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	423 #else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	424 # ifdef HAS_vsnprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	425 (void)vsnprintf(next, state->size, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	426 len = strlen(next);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	427 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	428 len = vsnprintf(next, state->size, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	429 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	430 #endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	431
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	432 /* check that printf() results fit in buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	433 if (len == 0 \|\| (unsigned)len >= state->size \|\| next[state->size - 1] != 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	434 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	435
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	436 /* update buffer and position, compress first half if past that */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	437 strm->avail_in += (unsigned)len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	438 state->x.pos += len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	439 if (strm->avail_in >= state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	440 left = strm->avail_in - state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	441 strm->avail_in = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	442 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	443 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	444 memcpy(state->in, state->in + state->size, left);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	445 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	446 strm->avail_in = left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	447 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	448 return len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	449 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	450
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	451 int ZEXPORTVA gzprintf(gzFile file, const char *format, ...)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	452 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	453 va_list va;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	454 int ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	455
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	456 va_start(va, format);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	457 ret = gzvprintf(file, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	458 va_end(va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	459 return ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	460 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	461
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	462 #else /* !STDC && !Z_HAVE_STDARG_H */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	463
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	464 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	465 int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	466 a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	467 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	468 const char *format;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	469 int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	470 a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	471 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	472 unsigned len, left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	473 char *next;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	474 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	475 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	476
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	477 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	478 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	479 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	480 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	481 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	482
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	483 /* check that can really pass pointer in ints */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	484 if (sizeof(int) != sizeof(void *))
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	485 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	486
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	487 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	488 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	489 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	490
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	491 /* make sure we have some buffer space */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	492 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	493 return state->error;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	494
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	495 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	496 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	497 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	498 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	499 return state->error;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	500 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	501
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	502 /* do the printf() into the input buffer, put length in len -- the input
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	503 buffer is double-sized just for this function, so there is guaranteed to
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	504 be state->size bytes available after the current contents */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	505 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	506 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	507 next = (char *)(strm->next_in + strm->avail_in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	508 next[state->size - 1] = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	509 #ifdef NO_snprintf
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	510 # ifdef HAS_sprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	511 sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	512 a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	513 for (len = 0; len < size; len++)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	514 if (next[len] == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	515 break;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	516 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	517 len = sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	518 a12, a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	519 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	520 #else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	521 # ifdef HAS_snprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	522 snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8, a9,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	523 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	524 len = strlen(next);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	525 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	526 len = snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	527 a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	528 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	529 #endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	530
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	531 /* check that printf() results fit in buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	532 if (len == 0 \|\| len >= state->size \|\| next[state->size - 1] != 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	533 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	534
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	535 /* update buffer and position, compress first half if past that */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	536 strm->avail_in += len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	537 state->x.pos += len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	538 if (strm->avail_in >= state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	539 left = strm->avail_in - state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	540 strm->avail_in = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	541 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	542 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	543 memcpy(state->in, state->in + state->size, left);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	544 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	545 strm->avail_in = left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	546 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	547 return (int)len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	548 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	549
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	550 #endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	551
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	552 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	553 int ZEXPORT gzflush(file, flush)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	554 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	555 int flush;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	556 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	557 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	558
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	559 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	560 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	561 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	562 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	563
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	564 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	565 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	566 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	567
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	568 /* check flush parameter */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	569 if (flush < 0 \|\| flush > Z_FINISH)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	570 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	571
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	572 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	573 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	574 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	575 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	576 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	577 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	578
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	579 /* compress remaining data with requested flush */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	580 (void)gz_comp(state, flush);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	581 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	582 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	583
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	584 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	585 int ZEXPORT gzsetparams(file, level, strategy)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	586 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	587 int level;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	588 int strategy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	589 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	590 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	591 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	592
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	593 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	594 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	595 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	596 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	597 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	598
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	599 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	600 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	601 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	602
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	603 /* if no change is requested, then do nothing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	604 if (level == state->level && strategy == state->strategy)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	605 return Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	606
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	607 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	608 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	609 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	610 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	611 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	612 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	613
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	614 /* change compression parameters for subsequent input */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	615 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	616 /* flush previous input with previous parameters before changing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	617 if (strm->avail_in && gz_comp(state, Z_BLOCK) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	618 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	619 deflateParams(strm, level, strategy);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	620 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	621 state->level = level;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	622 state->strategy = strategy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	623 return Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	624 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	625
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	626 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	627 int ZEXPORT gzclose_w(file)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	628 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	629 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	630 int ret = Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	631 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	632
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	633 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	634 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	635 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	636 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	637
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	638 /* check that we're writing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	639 if (state->mode != GZ_WRITE)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	640 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	641
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	642 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	643 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	644 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	645 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	646 ret = state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	647 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	648
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	649 /* flush, free memory, and close file */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	650 if (gz_comp(state, Z_FINISH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	651 ret = state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	652 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	653 if (!state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	654 (void)deflateEnd(&(state->strm));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	655 free(state->out);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	656 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	657 free(state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	658 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	659 gz_error(state, Z_OK, NULL);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	660 free(state->path);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	661 if (close(state->fd) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	662 ret = Z_ERRNO;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	663 free(state);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	664 return ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	665 }

Mercurial > repos > blastem

annotate zlib/gzwrite.c @ 1971:80920c21bb52