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SDL_ndsaudio.c
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SDL_ndsaudio.c
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_AUDIO_DRIVER_NDS
/* Output audio to NDS */
#include <nds.h>
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "SDL_ndsaudio.h"
static int
NDSAUD_OpenDevice(_THIS, const char *devname, int iscapture)
{
SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
int valid_datatype = 0;
this->hidden = SDL_malloc(sizeof(*(this->hidden)));
if (!this->hidden) {
SDL_OutOfMemory();
return 0;
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
while ((!valid_datatype) && (test_format)) {
this->spec.format = test_format;
switch (test_format) {
case AUDIO_S8:
/*case AUDIO_S16LSB: */
valid_datatype = 1;
break;
default:
test_format = SDL_NextAudioFormat();
break;
}
}
#if 0
/* set the generic sound parameters */
setGenericSound(22050, /* sample rate */
127, /* volume */
64, /* panning/balance */
0); /* sound format */
#endif
return 1;
}
static void
NDSAUD_PlayDevice(_THIS)
{
#if 0
playGenericSound(this->hidden->mixbuf, this->hidden->mixlen);
// sound->data = this->hidden->mixbuf;/* pointer to raw audio data */
// sound->len = this->hidden->mixlen; /* size of raw data pointed to above */
// sound->rate = 22050; /* sample rate = 22050Hz */
// sound->vol = 127; /* volume [0..127] for [min..max] */
// sound->pan = 64; /* balance [0..127] for [left..right] */
// sound->format = 0; /* 0 for 16-bit, 1 for 8-bit */
// playSound(sound);
#endif
}
static Uint8 *
NDSAUD_GetDeviceBuf(_THIS)
{
return this->hidden->mixbuf; /* is this right? */
}
static void
NDSAUD_WaitDevice(_THIS)
{
/* stub */
}
static void
NDSAUD_CloseDevice(_THIS)
{
/* stub */
}
static int
NDSAUD_Init(SDL_AudioDriverImpl * impl)
{
/* Set the function pointers */
impl->OpenDevice = NDSAUD_OpenDevice;
impl->PlayDevice = NDSAUD_PlayDevice;
impl->WaitDevice = NDSAUD_WaitDevice;
impl->GetDeviceBuf = NDSAUD_GetDeviceBuf;
impl->CloseDevice = NDSAUD_CloseDevice;
/* and the capabilities */
impl->HasCaptureSupport = 1;
impl->OnlyHasDefaultOutputDevice = 1;
impl->OnlyHasDefaultInputDevice = 1;
return 1; /* this audio target is available. */
}
AudioBootStrap NDSAUD_bootstrap = {
"nds", "SDL NDS audio driver", NDSAUD_Init, 0 /*1? */
};
#endif /* SDL_AUDIO_DRIVER_NDS */
/* vi: set ts=4 sw=4 expandtab: */