mirror of
https://github.com/libretro/scummvm.git
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130 lines
3.0 KiB
C++
130 lines
3.0 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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* CD/drive handling functions
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*/
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#include "tinsel/drives.h"
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#include "tinsel/scene.h"
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#include "tinsel/tinsel.h"
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#include "tinsel/sched.h"
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#include "tinsel/strres.h"
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namespace Tinsel {
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static char currentCD = '1';
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static uint32 cdFlags[] = { fCd1, fCd2, fCd3, fCd4, fCd5, fCd6, fCd7, fCd8 };
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static bool bChangingCD = false;
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static char nextCD = '\0';
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void CdCD(CORO_PARAM) {
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CORO_BEGIN_CONTEXT;
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CORO_END_CONTEXT(_ctx);
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CORO_BEGIN_CODE(_ctx);
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while (bChangingCD) {
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if (g_scheduler->getCurrentProcess()) {
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// FIXME: CdCD gets passed a nullContext in RegisterGlobals() and
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// PrimeSceneHopper(), because I didn't know how to get a proper
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// context without converting the whole calling stack to CORO'd
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// functions. If these functions really get called while a CD
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// change is requested, this needs to be resolved.
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if (coroParam == nullContext)
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error("CdCD needs context!");
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CORO_SLEEP(1);
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} else
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error("No current process in CdCD()!");
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}
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CORO_END_CODE;
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}
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int GetCurrentCD(void) {
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// count from 1
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return (currentCD - '1' + 1);
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}
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void SetCD(int flags) {
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if (flags & cdFlags[currentCD - '1'])
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return;
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error("SetCD() problem");
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}
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int GetCD(int flags) {
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int i;
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char cd = '\0';
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if (flags & cdFlags[currentCD - '1'])
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return GetCurrentCD();
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for (i = 0; i < 8; i++) {
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if (flags & cdFlags[i]) {
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cd = (char)(i + '1');
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break;
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}
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}
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assert(i != 8);
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nextCD = cd;
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return cd;
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}
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void DoCdChange(void) {
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if (bChangingCD) {
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_vm->_sound->closeSampleStream();
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_vm->_sound->openSampleFiles();
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ChangeLanguage(TextLanguage());
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bChangingCD = false;
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}
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}
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void SetNextCD(int cdNumber) {
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assert(cdNumber == 1 || cdNumber == 2);
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nextCD = (char)(cdNumber + '1' - 1);
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}
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bool GotoCD(void) {
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// WORKAROUND: Somehow, CdDoChange() is called twice... Hopefully, this guard helps
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if (currentCD == nextCD)
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return false;
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currentCD = nextCD;
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/* if (bNoCD) {
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strcpy(cdDirectory, hdDirectory);
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cdLastBit[3] = currentCD;
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strcat(cdDirectory, cdLastBit);
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}
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*/
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bChangingCD = true;
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return true;
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}
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} // end of namespace Tinsel
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