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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2005 The ScummVM project
* Copyright (C) 2002-2005 Chris Apers - PalmOS Backend
*
* 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.
*
* $Header$
*
*/
#include "be_os5.h"
#include "common/config-manager.h"
#ifdef PALMOS_68K
static void initRegs(void *addr) {
asm (
move.l addr, a0
move.l a4, 0(a0)
move.l a5, 4(a0)
);
}
static Err sndCallback(void* UserDataP, SndStreamRef stream, void* bufferP, UInt32 *bufferSizeP) {
asm (
// movem.l a4-a5, -(sp)
move.l UserDataP, a0
move.l 0(a0), a4
move.l 4(a0), a5
);
SoundDataType *_sound = (SoundDataType *)UserDataP;
((OSystem::SoundProc)_sound->proc)(_sound->param, (byte *)bufferP, *bufferSizeP);
// asm ( movem.l (sp)+, a4-a5 );
return errNone;
}
#else
static SYSTEM_CALLBACK Err sndCallback(void* UserDataP, SndStreamRef stream, void* bufferP, UInt32 *bufferSizeP) {
SoundDataType *_sound = (SoundDataType *)UserDataP;
((OSystem::SoundProc)_sound->proc)(_sound->param, (byte *)bufferP, *bufferSizeP);
return errNone;
}
#endif
bool OSystem_PalmOS5::setSoundCallback(SoundProc proc, void *param) {
Err e;
Boolean success = false;
if (!_sound.active) {
_sound.proc = proc;
_sound.param = param;
_sound.active = true; // always true when we call this function, false when sound is off
_sound.handle = NULL;
if (ConfMan.hasKey("output_rate"))
_samplesPerSec = ConfMan.getInt("output_rate");
else
#ifdef PALMOS_ARM
_samplesPerSec = 22050; // default value
#else
_samplesPerSec = 8000; // default value
#endif
// try to create sound stream
if (1 || OPTIONS_TST(kOptPalmSoundAPI)) {
#ifdef PALMOS_68K
initRegs(&_sound);
#endif
e = SndStreamCreateExtended(
&_sound.handle,
sndOutput,
sndFormatPCM,
_samplesPerSec,
#ifdef PALMOS_ARM
sndInt16Little,
#else
sndInt16Big,
#endif
sndStereo,
(SndStreamVariableBufferCallback)sndCallback,
&_sound,
8192
#ifdef PALMOS_68K
,false
#endif
);
e = e ? e : SndStreamStart(_sound.handle);
e = e ? e : SndStreamSetVolume(_sound.handle, (32767L / 16) * gVars->palmVolume / 100);
success = (e == errNone);
}
}
// if not true some scenes (indy3 256,...) may freeze (ESC to skip)
return true;
}
void OSystem_PalmOS5::clearSoundCallback() {
if (_sound.active) {
if (1 || OPTIONS_TST(kOptPalmSoundAPI)) {
SndStreamStop(_sound.handle);
SndStreamDelete(_sound.handle);
}
}
_sound.active = false;
_sound.handle = NULL;
}
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