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comparison src/audio/nds/soundcommon.h @ 3976:8582c6a5ca16 SDL-1.2

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Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
author Sam Lantinga <slouken@libsdl.org>
date Mon, 25 Jun 2007 00:50:20 +0000
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3975:e85e65aec22f 3976:8582c6a5ca16
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 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
32 extern "C" {
33 #endif
34
35 typedef enum
36 {
37 NONE = 0,
38 INIT = 1,
39 MIX = 2,
40 MIXING = 4,
41 STOP = 8
42 }CommandType;
43
44 typedef enum
45 {
46 FIFO_NONE = 0,
47 UPDATEON_ARM9 = 1,
48 MIXCOMPLETE_ONARM9 = 2,
49 }FifoType;
50
51 typedef 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
66 extern void SoundSystemInit(u32 rate,u32 buffersize,u8 channel,u8 format);
67 extern void SoundStartMixer(void);
68 extern void SendCommandToArm7(u32 command);
69 #else
70 extern void SoundVBlankIrq(void);
71 extern void SoundSwapAndMix(void);
72 extern void SoundSetTimer(int period);
73 extern void SoundFifoHandler(void);
74 extern void SendCommandToArm9(u32 command);
75 #endif
76
77 #ifdef __cplusplus
78 }
79 #endif
80 #endif