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/*
* testfax_main.c -- CCITTFax(En|De)code usage sample
* by pts@fazekas.hu at Sat Jul 6 20:03:35 CEST 2002
* Sun Jul 7 22:25:55 CEST 2002
*
* Note that this sample is incomplete since the parameters (such as /K)
* cannot be set from the command line.
*/
#include "pts_fax.h"
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#ifdef __GNUC__
#ifndef __clang__
#pragma implementation
#endif
#endif
#if OBJDEP
# warning PROVIDES: testfax_main
#endif
static void* gsfax_xalloc(unsigned n) {
void *ret;
if ((ret=malloc(n))==0) abort();
return ret;
}
static void gsfax_free(void *ptr) {
free(ptr);
}
static void gsfax_memset(void *s, int c, unsigned n) {
/*return*/ memset(s,c,n);
}
static void gsfax_memcpy(void *dest, const void *src, unsigned n) {
/*return*/ memcpy(dest, src, n);
}
#if 0
CCITTFaxEncode:
bool Uncompressed=false;
int K=0;
bool EndOfLine=false;
bool EncodedByteAlign=false;
int Columns=1728;
int Rows=0; // Decode only
bool EndOfBlock=true;
bool BlackIs1=false;
int DamagedRowsBeforeError=0; // Decode only
bool FirstBitLowOrder=false; // GS only
int DecodedByteAlign=1; // GS only
bool CloseSource;
bool CloseTarget;
#endif
/* GS expected
* min_left=0
* bits_left=32
*
*/
static void work(FILE *f, stream_template const*template_, stream_state *state) {
unsigned got, pog;
stream_cursor_read r;
stream_cursor_write w;
unsigned char rbuf[4096], wbuf[1000], *hard, *rlimit;
bool last;
#if __CHECKER__
memset(&r, 0, sizeof(r));
memset(&w, 0, sizeof(w));
#endif
template_->init(state);
r.ptr=rlimit=rbuf-1;
hard=rbuf+sizeof(rbuf)-1;
assert(hard-r.ptr>=(int)template_->min_in_size);
last=false;
while (1) {
assert(r.ptr==rbuf-1);
if (last==false) {
if (0==(got=fread(rlimit+1, 1, hard-rlimit, f))) last=true;
rlimit+=got;
}
/* if (r.ptr==rlimit) break; */
w.ptr=wbuf-1;
w.limit=wbuf+sizeof(wbuf)-1;
assert(w.limit-w.ptr>=(int)template_->min_out_size);
r.limit=rlimit;
pog=template_->process(state, &r, &w, last);
fprintf(stderr, "pog=%d write=%d last=%d\n", pog, w.ptr-(wbuf-1), last);
if ((int)pog==PTSFAX_ERRC) {
fprintf(stderr, "syntax error!\n");
abort();
}
/* assert(last || r.ptr>=rbuf); */
fwrite(wbuf, 1, w.ptr-(wbuf-1), stdout);
if (last && (pog==0 || (int)pog==PTSFAX_EOFC)) break;
if (r.ptr!=rbuf-1) {
fprintf(stderr, "limit=%d\n", rlimit-r.ptr);
memmove(rbuf, r.ptr+1, rlimit-r.ptr);
rlimit=rbuf-1+(rlimit-r.ptr);
r.ptr=rbuf-1;
}
}
template_->release(state);
}
int main(int argc, char **argv) {
FILE *f;
(void)argc;
(void)argv;
/*
-* Define a limit on the Rows parameter, close to max_int. *-
#define cf_max_height 32000
if (code >= 0 &&
(state.K < -cf_max_height || state.K > cf_max_height ||
state.Columns < 0 || state.Columns > cfe_max_width ||
state.Rows < 0 || state.Rows > cf_max_height ||
state.DamagedRowsBeforeError < 0 ||
state.DamagedRowsBeforeError > cf_max_height ||
state.DecodedByteAlign < 1 || state.DecodedByteAlign > 16 ||
(state.DecodedByteAlign & (state.DecodedByteAlign - 1)) != 0)
)
*/
f=stdin;
/* f=fopen("stdpre.x","rb"); */
/* f=fopen("216","rb"); */
assert(f!=0);
if (0) {
#if USE_BUILTIN_FAXE
#if OBJDEP
# warning REQUIRES: pts_faxe
#endif
} else if (argc==2 && 0==strcmp(argv[1], "encode")) {
stream_CFE_state sCFEs;
sCFEs.memset_=gsfax_memset;
sCFEs.xalloc_=gsfax_xalloc;
sCFEs.free_=gsfax_free;
sCFEs.memcpy_=gsfax_memcpy;
s_CFE_template.set_defaults((stream_state*)&sCFEs);
/* sCFEs.K=-1; ... */
work(f, (stream_template const*)&s_CFE_template, (stream_state*)&sCFEs);
#endif
#if USE_BUILTIN_FAXD
#if OBJDEP
# warning REQUIRES: pts_faxd
#endif
} else if (argc==2 && 0==strcmp(argv[1], "decode")) {
stream_CFD_state sCFDs;
sCFDs.memset_=gsfax_memset;
sCFDs.xalloc_=gsfax_xalloc;
sCFDs.free_=gsfax_free;
sCFDs.memcpy_=gsfax_memcpy;
s_CFD_template.set_defaults((stream_state*)&sCFDs);
/* sCFEs.K=-1; ... */
work(f, (stream_template const*)&s_CFD_template, (stream_state*)&sCFDs);
#endif
} else {
fprintf(stderr, "Usage: %s encode|decode <INFILE >OUTFILE\n", argv[0]);
return 2;
}
fclose(f);
return 0;
}
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