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/*
* Copyright (C) 1996-1998 Szeredi Miklos
* Email: mszeredi@inf.bme.hu
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version. See the file COPYING.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "config.h"
#include "spperif.h"
#include "z80.h"
#include "spmain.h"
#include "sptiming.h"
#include "spscr.h"
#include "spkey.h"
#include "sptape.h"
#include "spsound.h"
#include "snapshot.h"
#include "spver.h"
#include "spconf.h"
#include "interf.h"
#include "misc.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
int endofsingle;
int sp_nosync = 0;
int showframe = 2;
int load_immed = 0;
qbyte sp_int_ctr = 0;
#ifdef USE_DJGPP
#define DOS
#endif
#ifndef DATADIR
#ifdef DOS
#define DATADIR "."
#else
#define DATADIR "/usr/local/share/spectemu"
#endif
#endif
#ifndef MULTIUSER
#ifdef DOS
#define MULTIUSER 0
#else
#define MULTIUSER 1
#endif
#endif
#define GLOBALCFG "spectemu.cfg"
#define LOCALCFG ".spectemurc"
const char *sp_datadir = DATADIR;
extern unsigned char loadim[];
extern unsigned long loadim_size;
#define SHOW_OFFS 1
static void update(void)
{
update_screen();
sp_border_update >>= 1;
sp_imag_vert = sp_imag_horiz = 0;
}
static void run_singlemode(void)
{
int t = 0;
int evenframe, halfsec, updateframe;
sp_int_ctr = 0;
endofsingle = 0;
spti_reset();
while(!endofsingle) {
if(sp_paused) {
autoclose_sound();
while(sp_paused) {
spkb_process_events(1);
spti_sleep(SKIPTIME);
translate_screen();
update();
}
spti_reset();
}
halfsec = !(sp_int_ctr % 25);
evenframe = !(sp_int_ctr & 1);
if(screen_visible) updateframe = sp_nosync ? halfsec :
!((sp_int_ctr+SHOW_OFFS) % showframe);
else updateframe = 0;
if(halfsec) {
sp_flash_state = ~sp_flash_state;
flash_change();
}
if(evenframe) {
play_tape();
sp_scline = 0;
}
spkb_process_events(evenframe);
sp_updating = updateframe;
t += CHKTICK;
t = sp_halfframe(t, evenframe ? EVENHF : ODDHF);
if(SPNM(load_trapped)) {
SPNM(load_trapped) = 0;
DANM(haltstate) = 0;
qload();
}
z80_interrupt(0xFF);
sp_int_ctr++;
if(!evenframe) rec_tape();
if(!sp_nosync) {
if(!sound_avail) spti_wait();
if(updateframe) update();
play_sound(evenframe);
}
else if(updateframe) update();
}
}
void check_params(int argc, char *argv[])
{
#if MULTIUSER
char *homedir;
strncpy(filenamebuf, DATADIR, MAXFILENAME-128);
strcat(filenamebuf, "/");
strcat(filenamebuf, GLOBALCFG);
spcf_read_conf_file(filenamebuf);
homedir = getenv("HOME");
if(homedir == NULL) {
sprintf(msgbuf,
"Warning: Can't open '%s': HOME environment variable not set",
LOCALCFG);
put_msg(msgbuf);
}
else {
strncpy(filenamebuf, homedir, MAXFILENAME-128);
strcat(filenamebuf, "/");
strcat(filenamebuf, LOCALCFG);
if(!file_exist(filenamebuf)) {
FILE *fp;
fp = fopen(filenamebuf, "wt");
if(fp == NULL) {
sprintf(msgbuf, "Note: Failed to create '%s': %s", filenamebuf,
strerror(errno));
put_msg(msgbuf);
}
else {
fprintf(fp, "# This is the config file for spectemu.\n\n");
fclose(fp);
sprintf(msgbuf, "Created '%s'", filenamebuf);
put_msg(msgbuf);
}
}
spcf_read_conf_file(filenamebuf);
}
#else
spcf_read_conf_file(GLOBALCFG);
#endif
spcf_read_xresources();
spcf_read_command_line(argc, argv);
}
static void init_load(int argc, char *argv[])
{
if(load_immed) snsh_z80_load_intern(loadim, loadim_size);
if(spcf_init_snapshot != NULL) {
sprintf(msgbuf, "Loading snapshot '%s'", spcf_init_snapshot);
put_msg(msgbuf);
load_snapshot_file_type(spcf_init_snapshot, spcf_init_snapshot_type);
free_string(spcf_init_snapshot);
}
if(spcf_init_tapefile != NULL) {
sprintf(msgbuf, "Loading tape '%s'", spcf_init_tapefile);
put_msg(msgbuf);
start_play_file_type(spcf_init_tapefile, 0, spcf_init_tapefile_type);
if(!load_immed) pause_play();
free_string(spcf_init_tapefile);
}
}
static void print_copyright(void)
{
sprintf(msgbuf,
"Welcome to SPECTEMU version %s/%s (C) Szeredi Miklos 1996-1998",
SPECTEMU_VERSION, SPECTEMU_TYPE);
put_msg(msgbuf);
put_msg("This program comes with NO WARRANTY, see the file COPYING "
"for details");
put_msg("Press Ctrl-h for help");
}
void start_spectemu(int argc, char *argv[])
{
spti_init();
init_spect_scr();
init_spect_sound();
init_spect_key();
print_copyright();
init_load(argc, argv);
run_singlemode();
}
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