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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2006 The ScummVM project
* Copyright (C) 2002-2006 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.
*
* $URL$
* $Id$
*
*/
#include "be_os5.h"
#include "backends/intern.h"
#include "common/config-manager.h"
SoundExType _soundEx;
static Err sndCallback(void* UserDataP, SndStreamRef stream, void* bufferP, UInt32 *bufferSizeP) {
SoundExType *_soundEx = (SoundExType *)UserDataP;
SoundType *_sound = _soundEx->sound;
if (_soundEx->set && _soundEx->size) {
MemMove(bufferP, _soundEx->dataP, _soundEx->size);
*bufferSizeP = _soundEx->size;
_soundEx->set = false;
} else {
_soundEx->size = *bufferSizeP;
MemSet(bufferP, 128, 0);
*bufferSizeP = 128;
}
return errNone;
}
void OSystem_PalmOS5::sound_handler() {
if (_sound.active) {
if (_soundEx.size && !_soundEx.set) {
if (!_soundEx.dataP)
_soundEx.dataP = MemPtrNew(_soundEx.size);
((SoundProc)_sound.proc)(_sound.param, (byte *)_soundEx.dataP, _soundEx.size);
_soundEx.set = true;
}
}// TODO : no Sound API case
}
SndStreamVariableBufferCallback OSystem_PalmOS5::sound_callback() {
return sndCallback;
}
bool OSystem_PalmOS5::setSoundCallback(SoundProc proc, void *param) {
Err e;
Boolean success = false;
if (!_sound.active) {
if (gVars->fmQuality != FM_QUALITY_INI) {
ConfMan.set("FM_medium_quality", (gVars->fmQuality == FM_QUALITY_MED));
ConfMan.set("FM_high_quality", (gVars->fmQuality == FM_QUALITY_HI));
}
#if defined (COMPILE_OS5)
CALLBACK_INIT(_soundEx);
#endif
_sound.proc = proc;
_sound.param = param;
_sound.active = true; // always true when we call this function, false when sound is off
_soundEx.handle = 0;
_soundEx.size = 0; // set by the callback
_soundEx.set = false;
_soundEx.dataP = NULL; // set by the handler
if (ConfMan.hasKey("output_rate"))
_samplesPerSec = ConfMan.getInt("output_rate");
else
_samplesPerSec = SAMPLES_PER_SEC;
// try to create sound stream
if (OPTIONS_TST(kOptPalmSoundAPI)) {
e = SndStreamCreateExtended(
&_soundEx.handle,
sndOutput,
sndFormatPCM,
_samplesPerSec,
#ifdef PALMOS_68K
sndInt16Big,
#else
sndInt16Little,
#endif
sndStereo,
sound_callback(),
&_soundEx,
8192
#ifdef PALMOS_68K
,false
#elif defined (COMPILE_OS5)
,true
#endif
);
e = e ? e : SndStreamStart(_soundEx.handle);
e = e ? e : SndStreamSetVolume(_soundEx.handle, 1024L * gVars->palmVolume / 100);
success = (e == errNone);
// no Sound API
} else {
_soundEx.size = 512;
_soundEx.dataP = MemPtrNew(_soundEx.size);
}
}
// if not true some scenes (indy3 256,...) may freeze (ESC to skip)
return true;
}
void OSystem_PalmOS5::clearSoundCallback() {
if (_sound.active) {
if (OPTIONS_TST(kOptPalmSoundAPI)) {
SndStreamStop(_soundEx.handle);
SndStreamDelete(_soundEx.handle);
}
if (_soundEx.dataP)
free(_soundEx.dataP);
}
_sound.active = false;
_soundEx.handle = NULL;
_soundEx.dataP = NULL;
}
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