SDL-1.2/src/audio/nds/soundcommon.h

   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