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#include "global.h"
#include "m4a.h"
#include "constants/bg_music.h"
#include "music.h"
extern u8 sub_80023E4(u32);
extern void sub_80118C4(u16);
extern void sub_809C730();
extern bool8 DisableInterrupts();
extern bool8 EnableInterrupts();
extern void sub_800C3F8(u16, u16);
extern void Random();
extern void sub_800BA5C();
extern void xxx_update_bg_sound_input();
// 0 - Only seen it initialized
// 1 - Playing
// 2 -
// 3 - Fade Out?
// 4 - Stopped
extern u16 gBGMusicPlayerState;
extern u16 gCurrentBGSong;
extern u16 gUnknown_202D690;
extern u8 gUnknown_202D694;
extern u32 gUnknown_203B0B8;
extern u16 gRawKeyInput;
void StopBGMusicVSync(void)
{
bool8 interrupt_flag;
u16 temp;
sub_800C3F8(0x3e5, 0x10);
sub_800C3F8(0x3e6, 0x10);
interrupt_flag = DisableInterrupts();
if(gUnknown_202D690 == 0)
{
if(gCurrentBGSong != 999)
{
temp = gBGMusicPlayerState - 1;
if(temp <= 1)
{
if(gBGMusicPlayerState == 2)
{
gUnknown_202D694 = 0;
}
else if(gBGMusicPlayerState == 1)
{
gUnknown_202D694 = 1;
}
gBGMusicPlayerState = 4;
}
}
}
m4aMPlayStop(&gMPlayInfo_BGM);
m4aSoundVSyncOff();
if(interrupt_flag)
{
EnableInterrupts();
}
}
void StartBGMusicVSync(void)
{
bool8 interrupt_flag = DisableInterrupts();
m4aSoundVSyncOn();
if(gUnknown_202D690 == 0)
{
if(gCurrentBGSong != 999)
{
if(gBGMusicPlayerState == 4)
{
gBGMusicPlayerState = 1;
if(gUnknown_202D694 != 0)
{
m4aSongNumStart(gCurrentBGSong);
}
else
{
m4aMPlayContinue(&gMPlayInfo_BGM);
}
}
}
}
if(interrupt_flag)
{
EnableInterrupts();
}
}
void nullsub_179(void)
{
}
// Unused
u8 sub_800CA38(u32 songIndex)
{
if(IsBGSong(songIndex))
{
if(GetMusicPlayerIndex(songIndex) == 0)
{
return 1;
}
}
if(sub_800CACC(songIndex))
{
if(GetMusicPlayerIndex(songIndex) == 1)
{
return 1;
}
}
else if(sub_800CAAC(songIndex))
{
if(GetMusicPlayerIndex(songIndex) > 1)
{
return 1;
}
}
return 0;
}
void nullsub_19(void)
{
}
bool8 IsBGSong(u32 songIndex)
{
if(songIndex <= NUM_BG_SONGS)
{
return TRUE;
}
return FALSE;
}
bool8 sub_800CAAC(u32 songIndex)
{
if(songIndex - 300 <= 639)
{
return TRUE;
}
return FALSE;
}
bool8 sub_800CACC(u32 songIndex)
{
if(songIndex - 200 <= 19)
{
return TRUE;
}
return FALSE;
}
u16 GetMusicPlayerIndex(u16 songIndex)
{
return gSongTable[songIndex].ms;
}
bool8 sub_800CAF0(u16 songIndex)
{
// Had to cast this.. m4a_internal header has this as u32
if((u16)gMPlayTable[songIndex].info->status == 0)
{
return 0;
}
return 1;
}
void nullsub_20(u16 songIndex)
{
}
void nullsub_21(u16 songIndex)
{
}
void sub_800CB20(void)
{
sub_800BA5C();
gUnknown_203B0B8++;
if((gRawKeyInput & (A_BUTTON | SELECT_BUTTON)) != 0)
{
Random();
}
Random();
}
// Unused
u32 sub_800CB50(void)
{
return gUnknown_203B0B8;
}
void nullsub_180(void)
{
}
void xxx_call_update_bg_sound_input(void)
{
xxx_update_bg_sound_input();
}
void nullsub_181(void)
{
}
u32 sub_800CB70(void)
{
return 0;
}
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