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-rw-r--r--apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.c335
-rw-r--r--apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.h40
-rw-r--r--apps/plugins/sdl/src/audio/nds/sound9.c61
-rw-r--r--apps/plugins/sdl/src/audio/nds/soundcommon.h80
4 files changed, 0 insertions, 516 deletions
diff --git a/apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.c b/apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.c
deleted file mode 100644
index afe141a567..0000000000
--- a/apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.c
+++ /dev/null
@@ -1,335 +0,0 @@
1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24/* Allow access to a raw mixing buffer */
25#include <nds.h>
26#include "SDL.h"
27#include "SDL_endian.h"
28#include "SDL_timer.h"
29#include "SDL_audio.h"
30#include "../SDL_audiomem.h"
31#include "../SDL_audio_c.h"
32#include "SDL_ndsaudio.h"
33#include "soundcommon.h"
34
35
36/* Audio driver functions */
37static int NDS_OpenAudio(_THIS, SDL_AudioSpec *spec);
38static void NDS_WaitAudio(_THIS);
39static void NDS_PlayAudio(_THIS);
40static Uint8 *NDS_GetAudioBuf(_THIS);
41static void NDS_CloseAudio(_THIS);
42
43/* Audio driver bootstrap functions */
44
45u32 framecounter = 0,soundoffset = 0;
46static SDL_AudioDevice *sdl_nds_audiodevice;
47
48//void SoundMixCallback(void *stream,u32 size)
49//{
50// //printf("SoundMixCallback\n");
51//
52// Uint8 *buffer;
53//
54// buffer = sdl_nds_audiodevice->hidden->mixbuf;
55// memset(buffer, sdl_nds_audiodevice->spec.silence, size);
56//
57// if (!sdl_nds_audiodevice->paused){
58//
59//
60// //if (sdl_nds_audiodevice->convert.needed) {
61// // int silence;
62//
63// // if (sdl_nds_audiodevice->convert.src_format == AUDIO_U8 ) {
64// // silence = 0x80;
65// // } else {
66// // silence = 0;
67// // }
68// // memset(sdl_nds_audiodevice->convert.buf, silence, sdl_nds_audiodevice->convert.len);
69// // sdl_nds_audiodevice->spec.callback(sdl_nds_audiodevice->spec.userdata,
70// // (Uint8 *)sdl_nds_audiodevice->convert.buf,sdl_nds_audiodevice->convert.len);
71// // SDL_ConvertAudio(&sdl_nds_audiodevice->convert);
72// // memcpy(buffer, sdl_nds_audiodevice->convert.buf, sdl_nds_audiodevice->convert.len_cvt);
73// //} else
74// {
75// sdl_nds_audiodevice->spec.callback(sdl_nds_audiodevice->spec.userdata, buffer, size);
76// //memcpy((Sint16 *)stream,buffer, size);
77// }
78//
79// }
80//
81// if(soundsystem->format == 8)
82// {
83// int i;
84// s32 *buffer32 = (s32 *)buffer;
85// s32 *stream32 = (s32 *)stream;
86// for(i=0;i<size/4;i++){ *stream32++ = buffer32[i] ^ 0x80808080;}
87// //for(i = 0; i < size; i++)
88// // ((s8*)stream)[i]=(buffer[i]^0x80);
89// }
90// else
91// {
92// int i;
93// for(i = 0; i < size; i++){
94// //((short*)stream)[i] =(short)buffer[i] << 8; // sound 8bit ---> buffer 16bit
95// //if (buffer[i] &0x80)
96// //((Sint16*)stream)[i] = 0xff00 | buffer[i];
97// ((Sint16*)stream)[i] = (buffer[i] - 128) << 8;
98//
99// //else
100// // ((Sint16*)stream)[i] = buffer[i];
101// }
102// //register signed char *pSrc =buffer;
103// //register short *pDest =stream;
104// //int x;
105// // for (x=size; x>0; x--)
106// // {
107// // register short temp = (((short)*pSrc)-128)<<8;
108// // pSrc++;
109// // *pDest++ = temp;
110// // }
111//
112// //memcpy((Sint16 *)stream,buffer, size);
113// }
114//}
115
116void SoundMixCallback(void *stream,u32 len)
117{
118 SDL_AudioDevice *audio = (SDL_AudioDevice *)sdl_nds_audiodevice;
119
120 /* Silence the buffer, since it's ours */
121 SDL_memset(stream, audio->spec.silence, len);
122
123 /* Only do soemthing if audio is enabled */
124 if ( ! audio->enabled )
125 return;
126
127 if ( ! audio->paused ) {
128 if ( audio->convert.needed ) {
129 //fprintf(stderr,"converting audio\n");
130 SDL_mutexP(audio->mixer_lock);
131 (*audio->spec.callback)(audio->spec.userdata,
132 (Uint8 *)audio->convert.buf,audio->convert.len);
133 SDL_mutexV(audio->mixer_lock);
134 SDL_ConvertAudio(&audio->convert);
135 SDL_memcpy(stream,audio->convert.buf,audio->convert.len_cvt);
136 } else {
137 SDL_mutexP(audio->mixer_lock);
138 (*audio->spec.callback)(audio->spec.userdata,
139 (Uint8 *)stream, len);
140 SDL_mutexV(audio->mixer_lock);
141 }
142 }
143 return;
144}
145void MixSound(void)
146{
147 int remain;
148
149 if(soundsystem->format == 8)
150 {
151 if((soundsystem->soundcursor + soundsystem->numsamples) > soundsystem->buffersize)
152 {
153 SoundMixCallback(&soundsystem->mixbuffer[soundsystem->soundcursor],soundsystem->buffersize - soundsystem->soundcursor);
154 remain = soundsystem->numsamples - (soundsystem->buffersize - soundsystem->soundcursor);
155 SoundMixCallback(soundsystem->mixbuffer,remain);
156 }
157 else
158 {
159 SoundMixCallback(&soundsystem->mixbuffer[soundsystem->soundcursor],soundsystem->numsamples);
160 }
161 }
162 else
163 {
164 if((soundsystem->soundcursor + soundsystem->numsamples) > (soundsystem->buffersize >> 1))
165 {
166 SoundMixCallback(&soundsystem->mixbuffer[soundsystem->soundcursor << 1],(soundsystem->buffersize >> 1) - soundsystem->soundcursor);
167 remain = soundsystem->numsamples - ((soundsystem->buffersize >> 1) - soundsystem->soundcursor);
168 SoundMixCallback(soundsystem->mixbuffer,remain);
169 }
170 else
171 {
172 SoundMixCallback(&soundsystem->mixbuffer[soundsystem->soundcursor << 1],soundsystem->numsamples);
173 }
174 }
175}
176
177void InterruptHandler(void)
178{
179 framecounter++;
180}
181void FiFoHandler(void)
182{
183 u32 command;
184 while ( !(REG_IPC_FIFO_CR & (IPC_FIFO_RECV_EMPTY)) )
185 {
186 command = REG_IPC_FIFO_RX;
187
188 switch(command)
189 {
190 case FIFO_NONE:
191 break;
192 case UPDATEON_ARM9:
193 REG_IME = 0;
194 MixSound();
195 REG_IME = 1;
196 SendCommandToArm7(MIXCOMPLETE_ONARM9);
197 break;
198 }
199 }
200}
201
202
203
204
205
206static int Audio_Available(void)
207{
208 return(1);
209}
210
211static void Audio_DeleteDevice(SDL_AudioDevice *device)
212{
213}
214
215static SDL_AudioDevice *Audio_CreateDevice(int devindex)
216{
217
218 SDL_AudioDevice *this;
219
220 /* Initialize all variables that we clean on shutdown */
221 this = (SDL_AudioDevice *)malloc(sizeof(SDL_AudioDevice));
222 if ( this ) {
223 SDL_memset(this, 0, (sizeof *this));
224 this->hidden = (struct SDL_PrivateAudioData *)
225 SDL_malloc((sizeof *this->hidden));
226 }
227 if ( (this == NULL) || (this->hidden == NULL) ) {
228 SDL_OutOfMemory();
229 if ( this ) {
230 SDL_free(this);
231 }
232 return(0);
233 }
234 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
235
236 /* Set the function pointers */
237 this->OpenAudio = NDS_OpenAudio;
238 this->WaitAudio = NDS_WaitAudio;
239 this->PlayAudio = NDS_PlayAudio;
240 this->GetAudioBuf = NDS_GetAudioBuf;
241 this->CloseAudio = NDS_CloseAudio;
242
243 this->free = Audio_DeleteDevice;
244//fprintf(stderr,"Audio_CreateDevice\n");
245 return this;
246}
247
248AudioBootStrap NDSAUD_bootstrap = {
249 "nds", "NDS audio",
250 Audio_Available, Audio_CreateDevice
251};
252
253
254void static NDS_WaitAudio(_THIS)
255{
256 //printf("NDS_WaitAudio\n");
257}
258
259static void NDS_PlayAudio(_THIS)
260{
261 //printf("playing audio\n");
262 if (this->paused)
263 return;
264
265}
266
267static Uint8 *NDS_GetAudioBuf(_THIS)
268{
269 return NULL;//(this->hidden->mixbuf);
270}
271
272static void NDS_CloseAudio(_THIS)
273{
274/* if ( this->hidden->mixbuf != NULL ) {
275 SDL_FreeAudioMem(this->hidden->mixbuf);
276 this->hidden->mixbuf = NULL;
277 }*/
278}
279
280static int NDS_OpenAudio(_THIS, SDL_AudioSpec *spec)
281{
282 //printf("NDS_OpenAudio\n");
283 int format = 0;
284 //switch(spec->format&0xff) {
285 //case 8: spec->format = AUDIO_S8;format=8; break;
286 //case 16: spec->format = AUDIO_S16LSB;format=16; break;
287 //default:
288 // SDL_SetError("Unsupported audio format");
289 // return(-1);
290 //}
291 switch (spec->format&~0x1000) {
292 case AUDIO_S8:
293 /* Signed 8-bit audio supported */
294 format=8;
295 break;
296 case AUDIO_U8:
297 spec->format ^= 0x80;format=8;
298 break;
299 case AUDIO_U16:
300 /* Unsigned 16-bit audio unsupported, convert to S16 */
301 spec->format ^=0x8000;format=16;
302 case AUDIO_S16:
303 /* Signed 16-bit audio supported */
304 format=16;
305 break;
306 }
307 /* Update the fragment size as size in bytes */
308 SDL_CalculateAudioSpec(spec);
309
310 /* Allocate mixing buffer */
311 //this->hidden->mixlen = spec->size;
312 //this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
313 //if ( this->hidden->mixbuf == NULL ) {
314 // SDL_SetError("Out of Memory");
315 // return(-1);
316 //}
317
318 SDL_NDSAudio_mutex = 0;
319 sdl_nds_audiodevice=this;
320
321 irqInit();
322 irqSet(IRQ_VBLANK,&InterruptHandler);
323 irqSet(IRQ_FIFO_NOT_EMPTY,&FiFoHandler);
324 irqEnable(IRQ_FIFO_NOT_EMPTY);
325
326 REG_IPC_FIFO_CR = IPC_FIFO_ENABLE | IPC_FIFO_SEND_CLEAR | IPC_FIFO_RECV_IRQ;
327
328
329
330 SoundSystemInit(spec->freq,spec->size,0,format);
331 SoundStartMixer();
332
333
334 return(1);
335}
diff --git a/apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.h b/apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.h
deleted file mode 100644
index cb6d1ea858..0000000000
--- a/apps/plugins/sdl/src/audio/nds/SDL_ndsaudio.h
+++ /dev/null
@@ -1,40 +0,0 @@
1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24#ifndef _SDL_lowaudio_h
25#define _SDL_lowaudio_h
26
27#include "../SDL_sysaudio.h"
28
29/* Hidden "this" pointer for the audio functions */
30#define _THIS SDL_AudioDevice *this
31
32struct SDL_PrivateAudioData {
33 /* The file descriptor for the audio device */
34 //Uint8 *mixbuf;
35 //Uint32 mixlen;
36};
37unsigned short SDL_NDSAudio_mutex=0;
38
39
40#endif /* _SDL_lowaudio_h */
diff --git a/apps/plugins/sdl/src/audio/nds/sound9.c b/apps/plugins/sdl/src/audio/nds/sound9.c
deleted file mode 100644
index 59c1c219ae..0000000000
--- a/apps/plugins/sdl/src/audio/nds/sound9.c
+++ /dev/null
@@ -1,61 +0,0 @@
1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21*/
22#include "SDL_config.h"
23#include "SDL_stdinc.h"
24
25#include "soundcommon.h"
26
27void SoundSystemInit(u32 rate,u32 buffersize,u8 channel,u8 format)
28{
29 soundsystem->rate = rate;
30
31 if(format == 8)
32 soundsystem->buffersize = buffersize;
33 else if(format == 16)
34 soundsystem->buffersize = buffersize * sizeof(short);
35
36 soundsystem->mixbuffer = (s8*)SDL_malloc(soundsystem->buffersize);
37 //soundsystem->soundbuffer = soundsystem->mixbuffer;
38 soundsystem->format = format;
39 soundsystem->channel = channel;
40 soundsystem->prevtimer = 0;
41 soundsystem->soundcursor = 0;
42 soundsystem->numsamples = 0;
43 soundsystem->period = 0x1000000 / rate;
44 soundsystem->cmd = INIT;
45}
46
47void SoundStartMixer(void)
48{
49 soundsystem->cmd |= MIX;
50}
51
52void SendCommandToArm7(u32 command)
53{
54 while (REG_IPC_FIFO_CR & IPC_FIFO_SEND_FULL);
55 if (REG_IPC_FIFO_CR & IPC_FIFO_ERROR)
56 {
57 REG_IPC_FIFO_CR |= IPC_FIFO_SEND_CLEAR;
58 }
59
60 REG_IPC_FIFO_TX = command;
61}
diff --git a/apps/plugins/sdl/src/audio/nds/soundcommon.h b/apps/plugins/sdl/src/audio/nds/soundcommon.h
deleted file mode 100644
index d38e37cf68..0000000000
--- a/apps/plugins/sdl/src/audio/nds/soundcommon.h
+++ /dev/null
@@ -1,80 +0,0 @@
1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24#ifndef __SOUNDCOMMON_H
25#define __SOUNDCOMMON_H
26
27#include <nds.h>
28
29#define CLOCK (1 << 25)
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
35typedef enum
36{
37 NONE = 0,
38 INIT = 1,
39 MIX = 2,
40 MIXING = 4,
41 STOP = 8
42}CommandType;
43
44typedef enum
45{
46 FIFO_NONE = 0,
47 UPDATEON_ARM9 = 1,
48 MIXCOMPLETE_ONARM9 = 2,
49}FifoType;
50
51typedef struct
52{
53 s8 *mixbuffer;//,*soundbuffer;
54 u32 rate;
55 u32 buffersize;
56 u32 cmd;
57 u8 channel,format;
58 u32 soundcursor,numsamples;
59 s32 prevtimer;
60 s16 period;
61}S_SoundSystem;
62
63#define soundsystem ((S_SoundSystem*)((u32)(IPC)+sizeof(TransferRegion)))
64
65#ifdef ARM9
66extern void SoundSystemInit(u32 rate,u32 buffersize,u8 channel,u8 format);
67extern void SoundStartMixer(void);
68extern void SendCommandToArm7(u32 command);
69#else
70extern void SoundVBlankIrq(void);
71extern void SoundSwapAndMix(void);
72extern void SoundSetTimer(int period);
73extern void SoundFifoHandler(void);
74extern void SendCommandToArm9(u32 command);
75#endif
76
77#ifdef __cplusplus
78}
79#endif
80#endif
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