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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Magnus Holmgren
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "autoconf.h"
#ifdef ROCKBOX_HAS_SIMSOUND
#define WINDOWS_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include "sound.h"
#include "kernel.h"
#include "thread-win32.h"
#include "debug.h"
static void sound_play_chunk(HWAVEOUT wave_out, LPWAVEHDR header,
HANDLE event)
{
unsigned char* buf;
long len;
if (!(header->dwFlags & WHDR_DONE) || !sound_get_pcm)
{
return;
}
EnterCriticalSection(&CriticalSection);
sound_get_pcm(&buf, &len);
LeaveCriticalSection(&CriticalSection);
if (len == 0)
{
DEBUGF("simulator got no pcm\n");
sound_get_pcm = NULL;
return;
}
header->lpData = buf;
header->dwBufferLength = len;
header->dwBytesRecorded = 0;
header->dwUser = 0;
header->dwFlags = 0;
header->dwLoops = 1;
header->lpNext = NULL;
header->reserved = 0;
if (MMSYSERR_NOERROR != waveOutPrepareHeader(wave_out, header,
sizeof(*header)))
{
return;
}
ResetEvent(event);
waveOutWrite(wave_out, header, sizeof(*header));
}
static int sound_init(LPHWAVEOUT wave_out, HANDLE event)
{
static const WAVEFORMATEX format =
{
WAVE_FORMAT_PCM, /* Format */
2, /* Number of channels */
44100, /* Samples per second */
44100 * 4, /* Bytes per second */
4, /* Block align */
16, /* Bits per sample */
0 /* Extra size */
};
if (MMSYSERR_NOERROR != waveOutOpen(wave_out, WAVE_MAPPER, &format,
(DWORD_PTR) event, 0, CALLBACK_EVENT))
{
return -1;
}
/* Full volume on left and right */
waveOutSetVolume(*wave_out, 0xffffffff);
return 0;
}
void sound_playback_thread(void)
{
/* To get smooth playback, two buffers are needed, which are queued for
* playback. (There can still be glitches though.)
*/
HWAVEOUT wave_out;
WAVEHDR header1;
WAVEHDR header2;
HANDLE event;
int result = -1;
if ((event = CreateEvent(NULL, FALSE, FALSE, NULL)))
{
result = sound_init(&wave_out, event);
}
while(-1 == result || !event)
{
Sleep(100000); /* Wait forever, can't play sound! */
}
while (true)
{
while (!sound_get_pcm)
{
/* TODO: fix a fine thread-synch mechanism here */
Sleep(100);
}
DEBUGF("starting simulator playback\n");
header1.dwFlags = WHDR_DONE;
header2.dwFlags = WHDR_DONE;
sound_play_chunk(wave_out, &header1, event);
sound_play_chunk(wave_out, &header2, event);
while (sound_get_pcm
&& (WAIT_FAILED != WaitForSingleObject(event, 1000)))
{
sound_play_chunk(wave_out, &header1, event);
sound_play_chunk(wave_out, &header2, event);
}
DEBUGF("stopping simulator playback\n");
waveOutReset(wave_out);
}
}
#endif /* ROCKBOX_HAS_SIMSOUND */
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