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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
* CD/drive handling functions
*/
#include "tinsel/drives.h"
#include "tinsel/scene.h"
#include "tinsel/tinsel.h"
#include "tinsel/sched.h"
#include "tinsel/strres.h"
namespace Tinsel {
static char currentCD = '1';
static uint32 cdFlags[] = { fCd1, fCd2, fCd3, fCd4, fCd5, fCd6, fCd7, fCd8 };
static bool bChangingCD = false;
static char nextCD = '\0';
void CdCD(CORO_PARAM) {
CORO_BEGIN_CONTEXT;
CORO_END_CONTEXT(_ctx);
CORO_BEGIN_CODE(_ctx);
while (bChangingCD) {
if (g_scheduler->getCurrentProcess()) {
// FIXME: CdCD gets passed a nullContext in RegisterGlobals() and
// PrimeSceneHopper(), because I didn't know how to get a proper
// context without converting the whole calling stack to CORO'd
// functions. If these functions really get called while a CD
// change is requested, this needs to be resolved.
if (coroParam == nullContext)
error("CdCD needs context!");
CORO_SLEEP(1);
} else
error("No current process in CdCD()!");
}
CORO_END_CODE;
}
int GetCurrentCD(void) {
// count from 1
return (currentCD - '1' + 1);
}
void SetCD(int flags) {
if (flags & cdFlags[currentCD - '1'])
return;
error("SetCD() problem");
}
int GetCD(int flags) {
int i;
char cd = '\0';
if (flags & cdFlags[currentCD - '1'])
return GetCurrentCD();
for (i = 0; i < 8; i++) {
if (flags & cdFlags[i]) {
cd = (char)(i + '1');
break;
}
}
assert(i != 8);
nextCD = cd;
return cd;
}
void DoCdChange(void) {
if (bChangingCD) {
_vm->_sound->closeSampleStream();
_vm->_sound->openSampleFiles();
ChangeLanguage(TextLanguage());
bChangingCD = false;
}
}
void SetNextCD(int cdNumber) {
assert(cdNumber == 1 || cdNumber == 2);
nextCD = (char)(cdNumber + '1' - 1);
}
bool GotoCD(void) {
// WORKAROUND: Somehow, CdDoChange() is called twice... Hopefully, this guard helps
if (currentCD == nextCD)
return false;
currentCD = nextCD;
/* if (bNoCD) {
strcpy(cdDirectory, hdDirectory);
cdLastBit[3] = currentCD;
strcat(cdDirectory, cdLastBit);
}
*/
bChangingCD = true;
return true;
}
} // end of namespace Tinsel
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