/***********************************************************************
函数功能：创建一个子空文件
操作内容：1、文件名必须是数字或者大写字母，小于8位则用空格，扩展名为空格
2、文件大小事先不用设置,均为0;
3、创建子文件的过程实际就是写子目录和FAT表，这里不写文件里的数据
4、这里文件名为短名，8个字节，也就是8个字符
5、子文件的目录写在其父目录的起始簇的空白目录项
***********************************************************************/
void CreateDirectoryFile(uint8 DirectoryName[11], uint8 FileName[11]) //父文件夹名和新建文件名，短文件名
{
uint16 ClusID,ClusIDFile,Index;
DIR FileDir;
uint16 FileCrtDateTmp,FileCrtTimeTmp; //双字节数据
uint8 FileCrtDate[2],FileCrtTime[2]; //单字节时间日期数据
FileDir.FilePosit.Start = GetNextFAT(); //得到一个空的FAT项，下面用来写对应文件的FAT表
ClusID = FileDir.FilePosit.Start; //文件簇开始簇号，这是子文件的起始簇地址
ClusIDFile = FileDir.FilePosit.Start; //暂存下来，以备后面写入
WriteFAT(ClusID, 0xffff); //写对应文件的FAT表1，即FAT1,0xffff表示文件结束
WriteFAT2(ClusID, 0xffff); //写对应文件的FAT表2，即FAT2，0xffff表示文件结束
Index = GetFileID(DirectoryName,&FileDir); //搜索得到文件夹的属性，主要是获得起始簇位置，方便写文件的目录项
ReadDIR(Index, &FileDir); //读取父文件夹的目录项，只需要其起始簇
FileCrtDateTmp=GetFileCrtDate(2010,7,2); //文件修改日期2010年7月2日
FileCrtDate[0]=(uint8)FileCrtDateTmp&0x00ff; //低字节提取
FileCrtDate[1]=(uint8)(FileCrtDateTmp>>8); //高字节提取
FileCrtTimeTmp=GetFileCrtTime(21,20,10); //文件修改时间21点20分10秒
FileCrtTime[0]=(uint8)FileCrtTimeTmp&0x00ff; //低字节提取
FileCrtTime[1]=(uint8)(FileCrtTimeTmp>>8); //高字节提取
CopyBytes(FileName, &FileDir.FileName, 11); //写入文件名
CopyBytes(FileCrtDate, &FileDir.FileCrtDate, 2); //写入文件创建日期
CopyBytes(FileCrtTime, &FileDir.FileCrtTime, 2); //写入文件创建时间
FileDir.FileAttrib = 0x20; //文件属性填充，0x10为子目录属性，即文件夹
ClusID = FileDir.FilePosit.Start; //父文件夹的开始簇号，子文件目录项写入这个簇中
FileDir.FilePosit.Start=ClusIDFile; //新建文件的起始簇
WriteDirectoryDIR(ClusID,GetDirectoryEmptyDIR(ClusID),&FileDir);//需要扫描父目录的起始簇中空白可以写入子目录的项
}
int main(int _argc, char **_argv)
{
consoleDemoInit();
InstallSoundSys();
argc=_argc;
argv=_argv;
if(!fatInitDefault())
{
iprintf("Filesystem FAIL");
for(;;) swiWaitForVBlank();
}
CurrentFile = 0;
ReadDIR();
ShowDIR();
CurrentSPS=malloc(768);
if(readFrontend(CurrentSPS)) {
ReadSPS();
} else {
free(CurrentSPS);
CurrentSPS=NULL;
}
for(;;)
{
if(CurrentSSEQ != LastSSEQ)
{
LastSSEQ = CurrentSSEQ;
scrollpos = 0;
scrollposcounter = 10;
}
if(CurrentFile != LastFile)
{
LastFile = CurrentFile;
scrollpos = 0;
scrollposcounter = 10;
}
if(scrollposcounter==0)
{
scrollposcounter=10;
if(!scrollposdirection)
{
//RIGHT
if(scrollpos<scrollposmax)
{
scrollpos++;
}
else
{
scrollposdirection = 1;
scrollposcounter = 120;
}
}
else
{
//LEFT
if(scrollpos>0)
{
scrollpos--;
}
else
{
scrollposdirection = 0;
scrollposcounter = 120;
}
}
}
else
{
scrollposcounter--;
}
if(!PlayMode)
{
message_pointer = 0; //Ignore any incoming debug messages.
if(SSEQMode)
ShowSSEQ();
else
ShowDIR();
}
swiWaitForVBlank();
if(PlayMode)
{
j = message_pointer;
for(i=0; i<j; i+=6)
{
if(message_data[i])
{
#ifdef SNDSYS_DEBUG
iprintf("cmd = %.2X:%.2X",message_data[i+1],message_data[i+2]);
if(message_data[i]==3)
iprintf(":%.2X\n",message_data[i+3]);
else
iprintf("\n");
#endif
switch (message_data[i+1])
{
#ifdef SNDSYS_DEBUG
case 0x00:
iprintf("00 Unrecognized record: %d\n",message_data[i+2]);
break;
case 0x04:
iprintf("%X:",message_data[i+5]);
iprintf("04 SEQUENCE IS MULTI-TRACK\n");
break;
case 0x03:
iprintf("%X:",message_data[i+5]);
iprintf("03 SEQUENCE IS SINGLE-TRACK\n");
break;
case 0x05:
iprintf("%X:",message_data[i+5]);
iprintf("05 CREATED TRACK %d\n",message_data[i+2]);
break;
#endif
case 0x06:
if(PlayMode)
iprintf("06 SEQUENCE STOPPED\n");
if(PlayMode && AutoPlay && !ManualStop)
{
if(CurrentSSEQ < SSEQCount - 1)
{
CurrentSSEQ++;
ReadSSEQ();
}
}
ManualStop = false;
break;
case 0x07:
if(PlayMode)
iprintf("07 Track has looped twice\n");
if(PlayMode && AutoPlay)
{
FadeSeq();
}
break;
case 0x08:
if(PlayMode)
iprintf("08 Track has ended\n");
if(PlayMode && AutoPlay)
{
if(CurrentSSEQ < SSEQCount - 1)
{
CurrentSSEQ++;
ReadSSEQ();
}
}
break;
case 0xC1: // Track Volume
iprintf("%X:", message_data[i+5]);
iprintf("C1 Track Volume: %d\n", message_data[i+2]);
break;
case 0xC2: // MASTER VOLUME
iprintf("%X:", message_data[i+5]);
iprintf("C2 MASTER VOLUME: %d\n", message_data[i+2]);
break;
#ifdef SNDSYS_DEBUG
case 0x94: // JUMP
iprintf("%X:",message_data[i+5]);
iprintf("94 POSITION JUMP:\n");
break;
case 0xC3: // TRANSPOSE
iprintf("C3 TRANSPOSE: %.2X\n",message_data[i+2]);
break;
case 0xC8: // TIE
iprintf("C8 TIE: %.2X\n",message_data[i+2]);
break;
case 0xC9: // PORTAMENTO
iprintf("C9 PORTAMENTO: %.2X\n",message_data[i+2]);
break;
case 0xCA: // MODULATION DEPTH
iprintf("CA MODULATION DEPTH: %.2X\n",message_data[i+2]);
break;
case 0xCB: // MODULATION SPEED
iprintf("CB MODULATION SPEED: %.2X\n",message_data[i+2]);
break;
case 0xCC: // MODULATION TYPE
iprintf("CC MODULATION TYPE: %.2X\n",message_data[i+2]);
break;
case 0xCD: // MODULATION RANGE
iprintf("CD MODULATION RANGE: %.2X\n",message_data[i+2]);
break;
case 0xCE: // PORTAMENTO ON/OFF
iprintf("CE PORTAMENTO ON/OFF: %.2X\n",message_data[i+2]);
break;
case 0xCF: // PORTAMENTO TIME
iprintf("CF PORTAMENTO TIME: %.2X\n",message_data[i+2]);
break;
case 0xD4: //LOOP START
iprintf("%X:",message_data[i+5]);
iprintf("D4 LOOP START: %d\n",message_data[i+2]);
break;
case 0xD6: // PRINT VAR
iprintf("D6 PRINT VAR: %.2X\n",message_data[i+2]);
break;
case 0xE0: // MODULATION DELAY
iprintf("E0 MODULATION DELAY: %.2X %.2X\n",message_data[i+2],message_data[i+3]);
break;
case 0xE3: // SWEEP PITCH
iprintf("E3 SWEEP PITCH: %.2X %.2X\n",message_data[i+2],message_data[i+3]);
break;
case 0xFC:
iprintf("%X:",message_data[i+5]);
iprintf("FC LOOP END:\n");
break;
case 0xFF:
iprintf("%X:",message_data[i+5]);
iprintf("FF END OF TRACK:\n");
break;
default:
iprintf("%.2X Unrecognized cmd: %.2X %.2X %.2X",message_data[i+1],message_data[i+2],message_data[i+3],message_data[i+4]);
break;
#endif
}
}
}
message_pointer -= j;
}
scanKeys();
if (keysDown() & KEY_A)
{
if(PlayMode)
{
fifoSendDatamsg(FIFO_SNDSYS, sizeof(curr_seq), (u8*) &curr_seq); //User may have stopped current sequence.
}
else
{
if(SSEQMode)
{
ReadSSEQ();
}
else
{
if (CurrentSPS != NULL)
{
free(CurrentSPS);
}
CurrentSPS = malloc(23 + strlen(DIRList[CurrentFile])+1);
strcpy(CurrentSPS, "/data/NDS Music Player/");
strcat(CurrentSPS, DIRList[CurrentFile]);
CurrentSPS[23 + strlen(DIRList[CurrentFile])]=0;
ReadSPS();
}
}
}
if (keysDown() & KEY_B)
{
if(PlayMode)
{
PlayMode = false;
SSEQMode = true;
ShowSSEQ();
}
else
{
if(SSEQMode)
{
SSEQMode = false;
ShowDIR();
}
else
{
ShowDIR();
}
}
}
if (keysDown() & KEY_X)
{
ManualStop = true;
StopSeq();
}
if (keysDown() & KEY_Y)
{
ManualStop = true;
FadeSeq();
}
if(keysDown() & KEY_SELECT)
{
AutoPlay = !AutoPlay;
if(PlayMode)
{
if(AutoPlay)
iprintf("Auto Play enabled\n");
else
iprintf("Auto Play disabled\n");
}
}
if(keysDown() & KEY_START)
{
PauseSeq();
}
if (keysDown() & KEY_UP)
{
if(PlayMode)
{
}
else
{
if(SSEQMode)
{
if(CurrentSSEQ > 0)
{
CurrentSSEQ--;
}
else
{
CurrentSSEQ = SSEQCount - 1;
}
ShowSSEQ();
}
else
{
if(CurrentFile > 0)
{
CurrentFile--;
}
else
{
CurrentFile = FileCount;
}
ShowDIR();
}
}
}
if (keysDown() & KEY_DOWN)
{
if(PlayMode)
{
}
else
{
if(SSEQMode)
{
if(CurrentSSEQ < SSEQCount - 1)
{
CurrentSSEQ++;
}
else
{
CurrentSSEQ = 0;
}
ShowSSEQ();
}
else
{
if(CurrentFile < FileCount)
{
CurrentFile++;
}
else
{
CurrentFile = 0;
}
ShowDIR();
}
}
}
if (keysDown() & KEY_LEFT)
{
if(PlayMode)
{
}
else
{
if(SSEQMode)
{
if(CurrentSSEQ >= 23)
{
CurrentSSEQ -= 23;
}
else
{
CurrentSSEQ = 0;
}
ShowSSEQ();
}
else
{
if(CurrentFile >= 23)
{
CurrentFile -= 23;
}
else
{
CurrentFile = 0;
}
ShowDIR();
}
}
}
if (keysDown() & KEY_RIGHT)
{
if(PlayMode)
{
}
else
{
if(SSEQMode)
{
if(CurrentSSEQ < (SSEQCount - 24))
{
CurrentSSEQ += 23;
}
else
{
CurrentSSEQ = SSEQCount - 1;
}
ShowSSEQ();
}
else
{
if(CurrentFile < (FileCount - 24))
{
CurrentFile += 23;
}
else
{
CurrentFile = FileCount;
}
ShowDIR();
}
}
}
if (keysDown() & KEY_L)
{
if (PlayMode)
{
if(CurrentSSEQ > 0)
{
CurrentSSEQ--;
}
else
{
CurrentSSEQ = SSEQCount - 1;
}
ReadSSEQ();
}
}
if (keysDown() & KEY_R)
{
if (PlayMode)
{
if(CurrentSSEQ < SSEQCount - 1)
{
CurrentSSEQ++;
}
else
{
CurrentSSEQ = 0;
}
ReadSSEQ();
}
}
}
}