This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_ndsaudio.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
This file written by Ryan C. Gordon (icculus@icculus.org)
*/
#include "SDL_config.h"
/* 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;
}
}
/* set the generic sound parameters */
setGenericSound(22050, /* sample rate */
127, /* volume */
64, /* panning/balance */
0); /* sound format */
return 1;
}
static void
NDSAUD_PlayDevice(_THIS)
{
TransferSoundData *sound = SDL_malloc(sizeof(TransferSoundData));
if (!sound) {
SDL_OutOfMemory();
}
playGenericSound(this->hidden->mixbuf, this->hidden->mixlen);
#if 0
// 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;
}
AudioBootStrap NDSAUD_bootstrap = {
"nds", "SDL NDS audio driver", NDSAUD_Init, 0 /*1? */
};
/* vi: set ts=4 sw=4 expandtab: */