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/* MikMod sound library
(c) 1998-2014 Miodrag Vallat and others - see file AUTHORS for
complete list.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
/*==============================================================================
drv_psp.c -- output data to PlayStation Portable audio device.
by sweetlilmre (12 November 2005, mikmod 3.1.11 port)
originally by Jim Shaw (mikmod-3.0.3 port, July 2005, Public Domain)
==============================================================================*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mikmod_internals.h"
#ifdef DRV_PSP
#include <pspkernel.h>
#include <pspaudio.h>
#include <pspaudiolib.h>
#include <string.h>
static int audio_ready = 0;
static int audio_handle = -1;
static volatile int audio_terminate = 0;
static volatile int bufidx = 0;
static volatile int playing = 0;
static short mikmod_sndbuf[2][PSP_NUM_AUDIO_SAMPLES][2];
static void PSP_Update(void)
{
if (audio_terminate == 0) {
void *bufptr = &mikmod_sndbuf[bufidx];
if (playing) {
VC_WriteBytes(bufptr, PSP_NUM_AUDIO_SAMPLES*4);
}
else {
memset(bufptr, 0, PSP_NUM_AUDIO_SAMPLES*4);
}
if (audio_ready) {
sceAudioOutputPannedBlocking(audio_handle, PSP_VOLUME_MAX, PSP_VOLUME_MAX, bufptr);
}
bufidx ^= 1;
}
}
static BOOL PSP_IsThere(void)
{
return 1;
}
static int PSP_Init(void)
{
if (VC_Init())
return 1;
audio_terminate = 0;
audio_ready = 0;
audio_handle = sceAudioChReserve(-1, PSP_NUM_AUDIO_SAMPLES, 0);
if (audio_handle < 0) {
audio_handle = -1;
_mm_errno = MMERR_OPENING_AUDIO;
return 1;
}
audio_ready = 1;
return 0;
}
static void PSP_Exit(void)
{
audio_ready = 0;
audio_terminate = 1;
if (audio_handle != -1) {
sceAudioChRelease(audio_handle);
audio_handle = -1;
}
VC_Exit();
}
static int PSP_Reset(void)
{
VC_Exit();
return VC_Init();
}
static int PSP_PlayStart(void)
{
VC_PlayStart();
playing = 1;
return 0;
}
static void PSP_PlayStop(void)
{
playing = 0;
VC_PlayStop();
}
MIKMODAPI MDRIVER drv_psp = {
NULL,
"PSP Audio",
"PSP Output Driver v1.1 - by sweetlilmre, original by Jim Shaw",
0,255,
"pspdrv",
NULL,
NULL,
PSP_IsThere,
VC_SampleLoad,
VC_SampleUnload,
VC_SampleSpace,
VC_SampleLength,
PSP_Init,
PSP_Exit,
PSP_Reset,
VC_SetNumVoices,
PSP_PlayStart,
PSP_PlayStop,
PSP_Update,
NULL,
VC_VoiceSetVolume,
VC_VoiceGetVolume,
VC_VoiceSetFrequency,
VC_VoiceGetFrequency,
VC_VoiceSetPanning,
VC_VoiceGetPanning,
VC_VoicePlay,
VC_VoiceStop,
VC_VoiceStopped,
VC_VoiceGetPosition,
VC_VoiceRealVolume
};
#else
MISSING(drv_psp);
#endif
/* ex:set ts=8: */
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