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/* ScummVM - Scumm Interpreter
* Dreamcast port
* Copyright (C) 2002 Marcus Comstedt
*
* 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.
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#define RONIN_TIMER_ACCESS
#include <common/scummsys.h>
#include <common/stdafx.h>
#include <common/engine.h>
#include <common/gameDetector.h>
#include "dc.h"
#include "icon.h"
Icon icon;
OSystem *OSystem_Dreamcast_create() {
return OSystem_Dreamcast::create();
}
OSystem *OSystem_Dreamcast::create() {
OSystem_Dreamcast *syst = new OSystem_Dreamcast();
return syst;
}
/* CD Audio */
static bool find_track(int track, int &first_sec, int &last_sec)
{
struct TOC *toc = cdfs_gettoc();
if(!toc)
return false;
int i, first, last;
first = TOC_TRACK(toc->first);
last = TOC_TRACK(toc->last);
if(first < 1 || last > 99 || first > last)
return false;
for(i=last; i>=first; --i)
if(!(TOC_CTRL(toc->entry[i-1])&4))
if(track==1) {
first_sec = TOC_LBA(toc->entry[i-1]);
last_sec = TOC_LBA(toc->entry[i]);
return true;
} else
--track;
return false;
}
void OSystem_Dreamcast::play_cdrom(int track, int num_loops,
int start_frame, int end_frame)
{
int first_sec, last_sec;
#if 1
if(num_loops)
--num_loops;
#endif
if(num_loops>14) num_loops=14;
else if(num_loops<0) num_loops=15; // infinity
if(!find_track(track, first_sec, last_sec))
return;
if(end_frame)
last_sec = first_sec + start_frame + end_frame;
first_sec += start_frame;
play_cdda_sectors(first_sec, last_sec, num_loops);
}
void OSystem_Dreamcast::stop_cdrom()
{
stop_cdda();
}
bool OSystem_Dreamcast::poll_cdrom()
{
extern int getCdState();
return getCdState() == 3;
}
void OSystem_Dreamcast::update_cdrom()
{
// Dummy. The CD drive takes care of itself.
}
uint32 OSystem_Dreamcast::property(int param, Property *value)
{
switch(param) {
case PROP_GET_SAMPLE_RATE:
return 22050;
}
return 0;
}
void OSystem_Dreamcast::quit() {
exit(0);
}
void *OSystem_Dreamcast::create_thread(ThreadProc *proc, void *param) {
warning("Creating a thread! (not supported.)\n");
}
uint32 OSystem_Dreamcast::get_msecs()
{
static uint32 msecs=0;
static unsigned int t0=0;
unsigned int t = Timer();
unsigned int dm, dt = t - t0;
t0 = t;
dm = (dt << 6)/3125U;
dt -= (dm * 3125U)>>6;
t0 -= dt;
return msecs += dm;
}
void OSystem_Dreamcast::delay_msecs(uint msecs)
{
get_msecs();
unsigned int t, start = Timer();
int time = (((unsigned int)msecs)*100000U)>>11;
while(((int)((t = Timer())-start))<time)
checkSound();
get_msecs();
}
void OSystem_Dreamcast::set_timer(int timer, int (*callback)(int))
{
warning("Setting a timer! (not supported.)\n");
}
/* Mutex handling */
void *OSystem_Dreamcast::create_mutex(void)
{
return NULL;
}
void OSystem_Dreamcast::lock_mutex(void *mutex)
{
}
void OSystem_Dreamcast::unlock_mutex(void *mutex)
{
}
void OSystem_Dreamcast::delete_mutex(void *mutex)
{
}
/*
void waitForTimer(Scumm *s, int time)
{
if(time<0)
return;
unsigned int start = Timer();
unsigned int devpoll = start+USEC_TO_TIMER(25000);
unsigned int t;
int oldmousex = s->mouse.x, oldmousey = s->mouse.y;
time = (((unsigned int)time)*100000U)>>11;
int mask = getimask();
while(((int)((t = Timer())-start))<time)
if(((int)(t-devpoll))>0) {
setimask(15);
checkSound();
handleInput(locked_get_pads(), s->mouse.x, s->mouse.y,
s->_leftBtnPressed, s->_rightBtnPressed, s->_keyPressed);
setimask(mask);
devpoll += USEC_TO_TIMER(17000);
if(s->mouse.x != oldmousex || s->mouse.y != oldmousey) {
extern void updateScreen(Scumm *s);
updateScreen(s);
oldmousex = s->mouse.x;
oldmousey = s->mouse.y;
}
}
}
*/
void dc_init_hardware(void)
{
#ifndef NOSERIAL
serial_init(57600);
usleep(2000000);
printf("Serial OK\r\n");
#endif
cdfs_init();
maple_init();
dc_setup_ta();
init_arm();
}
int dc_setup(GameDetector &detector)
{
static char *argv[] = { "scummvm", NULL, NULL, NULL };
static int argc = 3;
initSound();
if(!selectGame(&detector, argv[2], argv[1], icon))
exit(0);
detector.parseCommandLine(argc, argv);
return 0;
}
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