Logo Search packages:      
Sourcecode: scummvm version File versions  Download package

os5_sound.cpp

/* 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: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-0-0rc1/backends/platform/PalmOS/Src/os5_sound.cpp $
 * $Id: os5_sound.cpp 39028 2009-03-01 10:25:33Z chrilith $
 *
 */

#include "be_os5.h"
#include "common/config-manager.h"
#include "sound/mixer_intern.h"


#ifdef PALMOS_ARM
#     ifdef COMPILE_ZODIAC
#           define SAMPLES_PER_SEC 44100
#     else
#           define SAMPLES_PER_SEC 22050
#     endif
#else
#     define SAMPLES_PER_SEC 8000
#endif


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);

                  _mixerMgr->mixCallback((byte *)_soundEx.dataP, _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.setBool("FM_medium_quality", (gVars->fmQuality == FM_QUALITY_MED));
                  ConfMan.setBool("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,
                                    sndInt16Little,
                                    sndStereo,
                                    sound_callback(),
                                    &_soundEx,
                                    8192
#ifdef 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)

      _mixerMgr->setOutputRate(_samplesPerSec);
      _mixerMgr->setReady(true);

      return true;
}

void OSystem_PalmOS5::clearSoundCallback() {
      if (_sound.active) {
            if (OPTIONS_TST(kOptPalmSoundAPI)) {
                  SndStreamStop(_soundEx.handle);
                  SndStreamDelete(_soundEx.handle);
            }

            if (_soundEx.dataP)
                  MemPtrFree(_soundEx.dataP);
      }

      _sound.active = false;
      _soundEx.handle = NULL;
      _soundEx.dataP = NULL;
}

Generated by  Doxygen 1.6.0   Back to index