//-------------------------------------------------- // インクルード //-------------------------------------------------- #include "clHCA.h" //#include #include #include #ifdef _MSC_VER #define inline __inline #endif //-------------------------------------------------- // インライン関数 //-------------------------------------------------- #if 0 static inline unsigned short get_le16(unsigned short v_){const unsigned char *v=(const unsigned char *)&v_;unsigned short r=v[1];r<<=8;r|=v[0];return r;} static inline unsigned short get_be16(unsigned short v_){const unsigned char *v=(const unsigned char *)&v_;unsigned short r=v[0];r<<=8;r|=v[1];return r;} static inline unsigned int get_be24(unsigned int v_){const unsigned char *v=(const unsigned char *)&v_;unsigned int r=v[0];r<<=8;r|=v[1];r<<=8;r|=v[2];return r;}; static inline unsigned int get_le32(unsigned int v_){const unsigned char *v=(const unsigned char *)&v_;unsigned int r=v[3];r<<=8;r|=v[2];r<<=8;r|=v[1];r<<=8;r|=v[0];return r;} static inline unsigned int get_be32(unsigned int v_){const unsigned char *v=(const unsigned char *)&v_;unsigned int r=v[0];r<<=8;r|=v[1];r<<=8;r|=v[2];r<<=8;r|=v[3];return r;} static inline float get_bef32(float v_){union{float f;unsigned int i;}v;v.f=v_;v.i=get_be32(v.i);return v.f;} static union { unsigned int i; unsigned char c[4]; } g_is_le = {1}; static inline unsigned short swap_u16(unsigned short v){unsigned short r=v&0xFF;r<<=8;v>>=8;r|=v&0xFF;return r;} static inline unsigned short swap_u32(unsigned int v){unsigned int r=v&0xFF;r<<=8;v>>=8;r|=v&0xFF;r<<=8;v>>=8;r|=v&0xFF;r<<=8;v>>=8;r|=v&0xFF;return r;} static inline unsigned short ret_le16(unsigned short v){if (g_is_le.c[0]) return v; else return swap_u16(v);} static inline unsigned short ret_le32(unsigned int v){if (g_is_le.c[0]) return v; else return swap_u32(v);} #endif static inline unsigned int ceil2(unsigned int a,unsigned int b){return (b>0)?(a/b+((a%b)?1:0)):0;} //-------------------------------------------------- // structure definitions //-------------------------------------------------- typedef struct stHeader{//ファイル情報 (必須) unsigned int hca; // 'HCA' unsigned short version; // バージョン。v1.3とv2.0の存在を確認 unsigned short dataOffset; // データオフセット } stHeader; typedef struct stFormat{//フォーマット情報 (必須) unsigned int fmt; // 'fmt' unsigned int channelCount:8; // チャンネル数 1〜16 unsigned int samplingRate:24; // サンプリングレート 1〜0x7FFFFF unsigned int blockCount; // ブロック数 0以上 unsigned short r01; // 先頭の無音部分(ブロック数*0x400+0x80) unsigned short r02; // 末尾の無音部分？計算方法不明(0x226) } stFormat; typedef struct stCompress{//圧縮情報 (圧縮情報かデコード情報のどちらか一つが必須) unsigned int comp; // 'comp' unsigned short blockSize; // ブロックサイズ(CBRのときに有効？) 8〜0xFFFF、0のときはVBR unsigned char r01; // 不明(1) 0〜r02 v2.0現在1のみ対応 unsigned char r02; // 不明(15) r01〜0x1F v2.0現在15のみ対応 unsigned char r03; // 不明(1)(1) unsigned char r04; // 不明(1)(0) unsigned char r05; // 不明(0x80)(0x80) unsigned char r06; // 不明(0x80)(0x20) unsigned char r07; // 不明(0)(0x20) unsigned char r08; // 不明(0)(8) unsigned char reserve1; // 予約 unsigned char reserve2; // 予約 } stCompress; typedef struct stDecode{//デコード情報 (圧縮情報かデコード情報のどちらか一つが必須) unsigned int dec; // 'dec' unsigned short blockSize; // ブロックサイズ(CBRのときに有効？) 8〜0xFFFF、0のときはVBR unsigned char r01; // 不明(1) 0〜r02 v2.0現在1のみ対応 unsigned char r02; // 不明(15) r01〜0x1F v2.0現在15のみ対応 unsigned char count1; // type0とtype1の数-1 unsigned char count2; // type2の数-1 unsigned char r03:4; // 不明(0) unsigned char r04:4; // 不明(0) 0は1に修正される unsigned char enableCount2; // count2を使うフラグ } stDecode; typedef struct stVBR{//可変ビットレート情報 (廃止？) unsigned int vbr; // 'vbr' unsigned short r01; // 不明 0〜0x1FF unsigned short r02; // 不明 } stVBR; typedef struct stATH{//ATHテーブル情報 (v2.0から廃止？) unsigned int ath; // 'ath' unsigned short type; // テーブルの種類(0:全て0 1:テーブル1) } stATH; typedef struct stLoop{//ループ情報 unsigned int loop; // 'loop' unsigned int loopStart; // ループ開始ブロックインデックス 0〜loopEnd unsigned int loopEnd; // ループ終了ブロックインデックス loopStart〜(stFormat::blockCount-1) unsigned short r01; // 不明(0x80)ループフラグ？ループ回数？ unsigned short r02; // 不明(0x226) } stLoop; typedef struct stCipher{//暗号テーブル情報 unsigned int ciph; // 'ciph' unsigned short type; // 暗号化の種類(0:暗号化なし 1:鍵なし暗号化 0x38:鍵あり暗号化) } stCipher; typedef struct stRVA{//相対ボリューム調節情報 unsigned int rva; // 'rva' float volume; // ボリューム } stRVA; typedef struct stComment{//コメント情報 unsigned int comm; // 'comm' unsigned char len; // コメントの長さ？ //char comment[]; } stComment; typedef struct stPadding{//パディング unsigned int pad; // 'pad' } stPadding; typedef struct clATH{ unsigned char _table[0x80]; } clATH; typedef struct clCipher{ unsigned char _table[0x100]; } clCipher; typedef struct stChannel{ float block[0x80]; float base[0x80]; char value[0x80]; char scale[0x80]; char value2[8]; int type; char *value3; unsigned int count; float wav1[0x80]; float wav2[0x80]; float wav3[0x80]; float wave[8][0x80]; } stChannel; typedef struct clHCA{ unsigned int _validFile; unsigned int _version; unsigned int _dataOffset; unsigned int _channelCount; unsigned int _samplingRate; unsigned int _blockCount; unsigned int _fmt_r01; unsigned int _fmt_r02; unsigned int _blockSize; unsigned int _comp_r01; unsigned int _comp_r02; unsigned int _comp_r03; unsigned int _comp_r04; unsigned int _comp_r05; unsigned int _comp_r06; unsigned int _comp_r07; unsigned int _comp_r08; unsigned int _comp_r09; unsigned int _vbr_r01; unsigned int _vbr_r02; unsigned int _ath_type; unsigned int _loopStart; unsigned int _loopEnd; unsigned int _loop_r01; unsigned int _loop_r02; unsigned int _loopFlg; unsigned int _ciph_type; unsigned int _ciph_key1; unsigned int _ciph_key2; float _rva_volume; unsigned int _comm_len; char *_comm_comment; clATH _ath; clCipher _cipher; stChannel _channel[0x10]; } clHCA; typedef struct clData{ const unsigned char *_data; int _size; int _bit; } clData; //-------------------------------------------------- // コンストラクタ //-------------------------------------------------- static void clATH_constructor(clATH *ath); static void clCipher_constructor(clCipher *cipher); static void clHCA_constructor(clHCA *hca,unsigned int ciphKey1,unsigned int ciphKey2){ memset(hca,0,sizeof(*hca)); hca->_ciph_key1 = ciphKey1; hca->_ciph_key2 = ciphKey2; clATH_constructor(&hca->_ath); clCipher_constructor(&hca->_cipher); hca->_validFile = 0; hca->_comm_comment = 0; } static void clHCA_destructor(clHCA *hca) { if(hca->_comm_comment){free(hca->_comm_comment);hca->_comm_comment=0;} } //-------------------------------------------------- // HCAチェック //-------------------------------------------------- #if 0 static int clHCA_CheckFile(void *data,unsigned int size){ return (data&&size>=4&&(get_be32(*(unsigned int *)data)&0x7F7F7F7F)==0x48434100);/*'HCA\0'*/ } #endif //-------------------------------------------------- // チェックサム //-------------------------------------------------- static const unsigned short clHCA_CheckSum_v[]={ 0x0000,0x8005,0x800F,0x000A,0x801B,0x001E,0x0014,0x8011,0x8033,0x0036,0x003C,0x8039,0x0028,0x802D,0x8027,0x0022, 0x8063,0x0066,0x006C,0x8069,0x0078,0x807D,0x8077,0x0072,0x0050,0x8055,0x805F,0x005A,0x804B,0x004E,0x0044,0x8041, 0x80C3,0x00C6,0x00CC,0x80C9,0x00D8,0x80DD,0x80D7,0x00D2,0x00F0,0x80F5,0x80FF,0x00FA,0x80EB,0x00EE,0x00E4,0x80E1, 0x00A0,0x80A5,0x80AF,0x00AA,0x80BB,0x00BE,0x00B4,0x80B1,0x8093,0x0096,0x009C,0x8099,0x0088,0x808D,0x8087,0x0082, 0x8183,0x0186,0x018C,0x8189,0x0198,0x819D,0x8197,0x0192,0x01B0,0x81B5,0x81BF,0x01BA,0x81AB,0x01AE,0x01A4,0x81A1, 0x01E0,0x81E5,0x81EF,0x01EA,0x81FB,0x01FE,0x01F4,0x81F1,0x81D3,0x01D6,0x01DC,0x81D9,0x01C8,0x81CD,0x81C7,0x01C2, 0x0140,0x8145,0x814F,0x014A,0x815B,0x015E,0x0154,0x8151,0x8173,0x0176,0x017C,0x8179,0x0168,0x816D,0x8167,0x0162, 0x8123,0x0126,0x012C,0x8129,0x0138,0x813D,0x8137,0x0132,0x0110,0x8115,0x811F,0x011A,0x810B,0x010E,0x0104,0x8101, 0x8303,0x0306,0x030C,0x8309,0x0318,0x831D,0x8317,0x0312,0x0330,0x8335,0x833F,0x033A,0x832B,0x032E,0x0324,0x8321, 0x0360,0x8365,0x836F,0x036A,0x837B,0x037E,0x0374,0x8371,0x8353,0x0356,0x035C,0x8359,0x0348,0x834D,0x8347,0x0342, 0x03C0,0x83C5,0x83CF,0x03CA,0x83DB,0x03DE,0x03D4,0x83D1,0x83F3,0x03F6,0x03FC,0x83F9,0x03E8,0x83ED,0x83E7,0x03E2, 0x83A3,0x03A6,0x03AC,0x83A9,0x03B8,0x83BD,0x83B7,0x03B2,0x0390,0x8395,0x839F,0x039A,0x838B,0x038E,0x0384,0x8381, 0x0280,0x8285,0x828F,0x028A,0x829B,0x029E,0x0294,0x8291,0x82B3,0x02B6,0x02BC,0x82B9,0x02A8,0x82AD,0x82A7,0x02A2, 0x82E3,0x02E6,0x02EC,0x82E9,0x02F8,0x82FD,0x82F7,0x02F2,0x02D0,0x82D5,0x82DF,0x02DA,0x82CB,0x02CE,0x02C4,0x82C1, 0x8243,0x0246,0x024C,0x8249,0x0258,0x825D,0x8257,0x0252,0x0270,0x8275,0x827F,0x027A,0x826B,0x026E,0x0264,0x8261, 0x0220,0x8225,0x822F,0x022A,0x823B,0x023E,0x0234,0x8231,0x8213,0x0216,0x021C,0x8219,0x0208,0x820D,0x8207,0x0202, }; static unsigned short clHCA_CheckSum(const void *data,int size,unsigned short sum){ const unsigned char *s, *e; for(s=(const unsigned char *)data,e=s+size;s>8)^*s]; return sum; } //-------------------------------------------------- // データ //-------------------------------------------------- void clData_constructor(clData *ds,const void *data,int size){ ds->_data=(const unsigned char *)data; ds->_size=size*8; ds->_bit=0; } static unsigned int clData_CheckBit(clData *ds,int bitSize){ unsigned int v=0; if(ds->_bit+bitSize<=ds->_size){ unsigned int bitOffset=bitSize+(ds->_bit&7); if((ds->_size-ds->_bit)>=32&&bitOffset>=25){ static const int mask[]={0xFFFFFFFF,0x7FFFFFFF,0x3FFFFFFF,0x1FFFFFFF,0x0FFFFFFF,0x07FFFFFF,0x03FFFFFF,0x01FFFFFF}; const unsigned int _bit=ds->_bit; const unsigned char *data=&ds->_data[_bit>>3]; v=data[0];v=(v<<8)|data[1];v=(v<<8)|data[2];v=(v<<8)|data[3]; v&=mask[_bit&7]; v>>=32-(_bit&7)-bitSize; } else if((ds->_size-ds->_bit)>=24&&bitOffset>=17){ static const int mask[]={0xFFFFFF,0x7FFFFF,0x3FFFFF,0x1FFFFF,0x0FFFFF,0x07FFFF,0x03FFFF,0x01FFFF}; const unsigned int _bit=ds->_bit; const unsigned char *data=&ds->_data[_bit>>3]; v=data[0];v=(v<<8)|data[1];v=(v<<8)|data[2]; v&=mask[_bit&7]; v>>=24-(_bit&7)-bitSize; } else if((ds->_size-ds->_bit)>=16&&bitOffset>=9){ static const int mask[]={0xFFFF,0x7FFF,0x3FFF,0x1FFF,0x0FFF,0x07FF,0x03FF,0x01FF}; const unsigned int _bit=ds->_bit; const unsigned char *data=&ds->_data[_bit>>3]; v=data[0];v=(v<<8)|data[1]; v&=mask[_bit&7]; v>>=16-(_bit&7)-bitSize; } else{ static const int mask[]={0xFF,0x7F,0x3F,0x1F,0x0F,0x07,0x03,0x01}; const unsigned int _bit=ds->_bit; const unsigned char *data=&ds->_data[_bit>>3]; v=data[0]; v&=mask[_bit&7]; v>>=8-(_bit&7)-bitSize; } } return v; } static unsigned int clData_GetBit(clData *ds,int bitSize){ unsigned int v=clData_CheckBit(ds,bitSize); ds->_bit+=bitSize; return v; } static void clData_AddBit(clData *ds,int bitSize){ ds->_bit+=bitSize; } //-------------------------------------------------- // ヘッダ情報をコンソール出力 //-------------------------------------------------- #if 0 static int clHCA_PrintInfo(const char *filenameHCA){ FILE *fp; stHeader header; unsigned char *data; unsigned int size; clData d; // temporaries, so we don't need a state structure unsigned int _version; unsigned int _dataOffset; unsigned int _channelCount; unsigned int _samplingRate; unsigned int _blockCount; unsigned int _fmt_r01; unsigned int _fmt_r02; unsigned int _blockSize; unsigned int _comp_r01; unsigned int _comp_r02; unsigned int _comp_r03; unsigned int _comp_r04; unsigned int _comp_r05; unsigned int _comp_r06; unsigned int _comp_r07; unsigned int _comp_r08; unsigned int _comp_r09; unsigned int _vbr_r01; unsigned int _vbr_r02; unsigned int _ath_type; unsigned int _loopStart; unsigned int _loopEnd; unsigned int _loop_r01; unsigned int _loop_r02; unsigned int _loopFlg; unsigned int _ciph_type; unsigned int _ciph_key1; unsigned int _ciph_key2; float _rva_volume; unsigned int _comm_len; char *_comm_comment; // チェック if(!(filenameHCA))return -1; // HCAファイルを開く if((fp = fopen(filenameHCA,"rb")) == NULL){ printf("Error: ファイルが開けませんでした。\n"); return -1; } // ヘッダチェック memset(&header,0,sizeof(header)); fread(&header,sizeof(header),1,fp); if(!clHCA_CheckFile(&header,sizeof(header))){ printf("Error: HCAファイルではありません。\n"); fclose(fp);return -1; } // ヘッダ解析 clData_constructor(&d, &header, sizeof(header)); clData_AddBit(&d, 32); header.dataOffset=clData_CheckBit(&d, 16); data=(unsigned char*) malloc(header.dataOffset); if(!data){ printf("Error: メモリ不足です。\n"); fclose(fp);return -1; } fseek(fp,0,SEEK_SET); fread(data,header.dataOffset,1,fp); size=header.dataOffset; clData_constructor(&d, data, size); // サイズチェック if(size=sizeof(stHeader) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x48434100){/*'HCA\0'*/ clData_AddBit(&d,32); _version=clData_GetBit(&d,16); _dataOffset=clData_GetBit(&d,16); printf("コーデック: HCA\n"); printf("バージョン: %d.%d\n",_version>>8,_version&0xFF); //if(size<_dataOffset)return -1; if(clHCA_CheckSum(data,_dataOffset,0))printf("※ ヘッダが破損しています。改変してる場合もこの警告が出ます。\n"); size-=(16+16+32)/8; }else{ printf("※ HCAチャンクがありません。再生に必要な情報です。\n"); } // fmt if(size>=sizeof(stFormat) && (clData_CheckBit(&d, 32)&0x7F7F7F7F)==0x666D7400){/*'fmt\0'*/ clData_AddBit(&d,32); _channelCount=clData_GetBit(&d,8); _samplingRate=clData_GetBit(&d,24); _blockCount=clData_GetBit(&d,32); _fmt_r01=clData_GetBit(&d,16); _fmt_r02=clData_GetBit(&d,16); switch(_channelCount){ case 1:printf("チャンネル数: モノラル (1チャンネル)\n");break; case 2:printf("チャンネル数: ステレオ (2チャンネル)\n");break; default:printf("チャンネル数: %dチャンネル\n",_channelCount);break; } if(!(_channelCount>=1&&_channelCount<=16)){ printf("※ チャンネル数の範囲は1〜16です。\n"); } printf("サンプリングレート: %dHz\n",_samplingRate); if(!(_samplingRate>=1&&_samplingRate<=0x7FFFFF)){ printf("※ サンプリングレートの範囲は1〜8388607(0x7FFFFF)です。\n"); } printf("ブロック数: %d\n",_blockCount); printf("先頭無音ブロック数: %d\n",(_fmt_r01-0x80)/0x400); printf("末尾無音サンプル数？: %d\n",_fmt_r02); size-=(16+16+32+24+8+32)/8; }else{ printf("※ fmtチャンクがありません。再生に必要な情報です。\n"); } // comp if(size>=sizeof(stCompress) && (clData_CheckBit(&d, 32)&0x7F7F7F7F)==0x636F6D70){/*'comp'*/ clData_AddBit(&d,32); _blockSize=clData_GetBit(&d,16); _comp_r01=clData_GetBit(&d,8); _comp_r02=clData_GetBit(&d,8); _comp_r03=clData_GetBit(&d,8); _comp_r04=clData_GetBit(&d,8); _comp_r05=clData_GetBit(&d,8); _comp_r06=clData_GetBit(&d,8); _comp_r07=clData_GetBit(&d,8); _comp_r08=clData_GetBit(&d,8); clData_AddBit(&d,8+8); printf("ビットレート: CBR (固定ビットレート)\n"); printf("ブロックサイズ: 0x%04X\n",_blockSize); if(!(_blockSize>=8&&_blockSize<=0xFFFF)){ printf("※ ブロックサイズの範囲は8〜65535(0xFFFF)です。v1.3では0でVBRになるようになってましたが、v2.0から廃止されたようです。\n"); } printf("comp1: %d\n",_comp_r01); printf("comp2: %d\n",_comp_r02); if(!(_comp_r01>=0&&_comp_r01<=_comp_r02&&_comp_r02<=0x1F)){ printf("※ comp1とcomp2の範囲は0<=comp1<=comp2<=31です。v2.0現在、comp1は1、comp2は15で固定されています。\n"); } printf("comp3: %d\n",_comp_r03); if(!_comp_r03){ printf("※ comp3は1以上の値です。\n"); } printf("comp4: %d\n",_comp_r04); printf("comp5: %d\n",_comp_r05); printf("comp6: %d\n",_comp_r06); printf("comp7: %d\n",_comp_r07); printf("comp8: %d\n",_comp_r08); size-=(32+16+8*8)/8; } // dec else if(size>=sizeof(stDecode) && (clData_CheckBit(&d, 32)&0x7F7F7F7F)==0x64656300){/*'dec\0'*/ unsigned char count1,count2,enableCount2; clData_AddBit(&d, 32); _blockSize=clData_GetBit(&d,16); _comp_r01=clData_GetBit(&d,8); _comp_r02=clData_GetBit(&d,8); count1=clData_GetBit(&d,8); count2=clData_GetBit(&d,8); _comp_r03=clData_GetBit(&d,4); _comp_r04=clData_GetBit(&d,4); enableCount2=clData_GetBit(&d,8); _comp_r05=count1+1; _comp_r06=((enableCount2)?count2:count1)+1; _comp_r07=_comp_r05-_comp_r06; _comp_r08=0; printf("ビットレート: CBR (固定ビットレート)\n"); printf("ブロックサイズ: 0x%04X\n",_blockSize); if(!(_blockSize>=8&&_blockSize<=0xFFFF)){ printf("※ ブロックサイズの範囲は8〜65535(0xFFFF)です。v1.3では0でVBRになるようになってましたが、v2.0から廃止されたようです。\n"); } printf("dec1: %d\n",_comp_r01); printf("dec2: %d\n",_comp_r02); if(!(_comp_r01>=0&&_comp_r01<=_comp_r02&&_comp_r02<=0x1F)){ printf("※ dec1とdec2の範囲は0<=dec1<=dec2<=31です。v2.0現在、dec1は1、dec2は15で固定されています。\n"); } printf("dec3: %d\n",_comp_r03); if(!_comp_r03){ printf("※ dec3は再生時に1以上の値に修正されます。\n"); } printf("dec4: %d\n",_comp_r04); printf("dec5: %d\n",_comp_r05); printf("dec6: %d\n",_comp_r06); printf("dec7: %d\n",_comp_r07); size-=(8+4+4+8+8+8+8+16+32)/8; }else{ printf("※ compチャンクまたはdecチャンクがありません。再生に必要な情報です。\n"); } // vbr if(size>=sizeof(stVBR) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x76627200){/*'vbr\0'*/ clData_AddBit(&d, 32); _vbr_r01=clData_GetBit(&d,16); _vbr_r02=clData_GetBit(&d,16); printf("ビットレート: VBR (可変ビットレート) ※v2.0で廃止されています。\n"); if(!(_blockSize==0)){ printf("※ compまたはdecチャンクですでにCBRが指定されています。\n"); } printf("vbr1: %d\n",_vbr_r01); if(!(_vbr_r01>=0&&_vbr_r01<=0x1FF)){ printf("※ vbr1の範囲は0〜511(0x1FF)です。\n"); } printf("vbr2: %d\n",_vbr_r02); size-=(16+16+32)/8; }else{ _vbr_r01=0; _vbr_r02=0; } // ath if(size>=6 && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x61746800){/*'ath\0'*/ clData_AddBit(&d,32); _ath_type=clData_GetBit(&d,16); printf("ATHタイプ:%d ※v2.0から廃止されています。\n",_ath_type); size-=(16+32)/8; }else{ if(_version<0x200){ printf("ATHタイプ:1 ※v2.0から廃止されています。\n"); } } // loop if(size>=sizeof(stLoop) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x6C6F6F70){/*'loop'*/ clData_AddBit(&d, 32); _loopStart=clData_GetBit(&d,32); _loopEnd=clData_GetBit(&d,32); _loop_r01=clData_GetBit(&d,16); _loop_r02=clData_GetBit(&d,16); printf("ループ開始ブロック: %d\n",_loopStart); printf("ループ終了ブロック: %d\n",_loopEnd); if(!(_loopStart>=0&&_loopStart<=_loopEnd&&_loopEnd<_blockCount)){ printf("※ ループ開始ブロックとループ終了ブロックの範囲は、0<=ループ開始ブロック<=ループ終了ブロック<ブロック数 です。\n"); } printf("ループ情報1: %d\n",_loop_r01); printf("ループ情報2: %d\n",_loop_r02); size-=(16+16+32+32+32)/8; } // ciph if(size>=6 && (clData_CheckBit(&d, 32)&0x7F7F7F7F)==0x63697068){/*'ciph'*/ clData_AddBit(&d,32); _ciph_type=clData_GetBit(&d,16); switch(_ciph_type){ case 0:printf("暗号化タイプ: なし\n");break; case 1:printf("暗号化タイプ: 鍵無し暗号化\n");break; case 0x38:printf("暗号化タイプ: 鍵有り暗号化 ※正しい鍵を使わないと出力波形がおかしくなります。\n");break; default:printf("暗号化タイプ: %d\n",_ciph_type);break; } if(!(_ciph_type==0||_ciph_type==1||_ciph_type==0x38)){ printf("※ この暗号化タイプは、v2.0現在再生できません。\n"); } size-=6; } // rva if(size>=sizeof(stRVA) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x72766100){/*'rva\0'*/ union { unsigned int i; float f; } v; clData_AddBit(&d,32); v.i=clData_GetBit(&d,32); _rva_volume=v.f; printf("相対ボリューム調節: %g倍\n",_rva_volume); size-=(32+32)/8; } // comm if(size>=5 && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x636F6D6D){/*'comm'*/ int i; clData_AddBit(&d,32); _comm_len=clData_GetBit(&d,8); _comm_comment=malloc(_comm_len+1); for(i=0;i<_comm_len;++i)_comm_comment[i]=clData_GetBit(&d,8); _comm_comment[i]='\0'; printf("コメント: %s\n",_comm_comment); free(_comm_comment); } free(data); // 閉じる fclose(fp); return 0; } #endif //-------------------------------------------------- // デコードしてWAVEファイルに保存 //-------------------------------------------------- #if 0 static int clHCA_DecodeToWavefile_Decode(void *fp1,void *fp2,unsigned int address,unsigned int count,void *data,void *modeFunction); static void clHCA_DecodeToWavefile_DecodeModeFloat(float f,void *fp){fwrite(&f,sizeof(f),1,(FILE *)fp);} static void clHCA_DecodeToWavefile_DecodeMode8bit(float f,void *fp){int v=(int)(f*0x7F)+0x80;fwrite(&v,1,1,(FILE *)fp);} static void clHCA_DecodeToWavefile_DecodeMode16bit(float f,void *fp){int v=(int)(f*0x7FFF);fwrite(&v,2,1,(FILE *)fp);} static void clHCA_DecodeToWavefile_DecodeMode24bit(float f,void *fp){int v=(int)(f*0x7FFFFF);fwrite(&v,3,1,(FILE *)fp);} static void clHCA_DecodeToWavefile_DecodeMode32bit(float f,void *fp){int v=(int)(f*0x7FFFFFFF);fwrite(&v,4,1,(FILE *)fp);} static int clHCA_DecodeToWavefile(clHCA *hca,const char *filenameHCA,const char *filenameWAV,float volume,int mode,int loop){ FILE *fp1; FILE *fp2; stHeader header; unsigned char *data1; unsigned char *data2; struct stWAVEHeader{ char riff[4]; unsigned int riffSize; char wave[4]; char fmt[4]; unsigned int fmtSize; unsigned short fmtType; unsigned short fmtChannelCount; unsigned int fmtSamplingRate; unsigned int fmtSamplesPerSec; unsigned short fmtSamplingSize; unsigned short fmtBitCount; }wavRiff={'R','I','F','F',0,'W','A','V','E','f','m','t',' ',ret_le32(0x10),0,0,0,0,0,0}; struct stWAVEsmpl{ char smpl[4]; unsigned int smplSize; unsigned int manufacturer; unsigned int product; unsigned int samplePeriod; unsigned int MIDIUnityNote; unsigned int MIDIPitchFraction; unsigned int SMPTEFormat; unsigned int SMPTEOffset; unsigned int sampleLoops; unsigned int samplerData; unsigned int loop_Identifier; unsigned int loop_Type; unsigned int loop_Start; unsigned int loop_End; unsigned int loop_Fraction; unsigned int loop_PlayCount; }wavSmpl={'s','m','p','l',ret_le32(0x3C),0,0,0,ret_le32(0x3C),0,0,0,ret_le32(1),ret_le32(0x18),0,0,0,0,0,0}; struct stWAVEnote{ char note[4]; unsigned int noteSize; unsigned int dwName; }wavNote={'n','o','t','e',0,0}; struct stWAVEdata{ char data[4]; unsigned int dataSize; }wavData={'d','a','t','a',0}; // チェック if(!(filenameHCA&&filenameWAV&&(mode==0||mode==8||mode==16||mode==24||mode==32)&&loop>=0))return -1; // HCAファイルを開く if((fp1 = fopen(filenameHCA,"rb")) == NULL)return -1; // ヘッダチェック memset(&header,0,sizeof(header)); fread(&header,sizeof(header),1,fp1); if(!CheckFile(&header,sizeof(header))){fclose(fp1);return -1;} // ヘッダ解析 header.dataOffset=get_be16(header.dataOffset); data1=(unsigned char*) malloc(header.dataOffset); if(!data1){fclose(fp1);return -1;} fseek(fp1,0,SEEK_SET); fread(data1,header.dataOffset,1,fp1); if(clHCA_Decode(cl,data1,header.dataOffset,0) < 0){free(data1);fclose(fp1);return -1;} // WAVEファイルを開く if((fp2 = fopen(filenameWAV,"wb")) == NULL){free(data1);fclose(fp1);return -1;} // WAVEヘッダを書き込み wavRiff.fmtType=ret_le16((mode>0)?1:3); wavRiff.fmtChannelCount=ret_le16(hca->_channelCount); wavRiff.fmtBitCount=ret_le16((mode>0)?mode:32); wavRiff.fmtSamplingRate=ret_le32(hca->_samplingRate); wavRiff.fmtSamplingSize=ret_le16(wavRiff.fmtBitCount/8*wavRiff.fmtChannelCount); wavRiff.fmtSamplesPerSec=ret_le32(wavRiff.fmtSamplingRate*wavRiff.fmtSamplingSize); if(hca->_loopFlg){ wavSmpl.samplePeriod=ret_le32((unsigned int)(1/(double)wavRiff.fmtSamplingRate*1000000000)); wavSmpl.loop_Start=ret_le32(hca->_loopStart*0x80*8*wavRiff.fmtSamplingSize); wavSmpl.loop_End=ret_le32(hca->_loopEnd*0x80*8*wavRiff.fmtSamplingSize); wavSmpl.loop_PlayCount=ret_le32((hca->_loop_r01==0x80)?0:hca->_loop_r01); }else if(loop){ wavSmpl.loop_Start=0; wavSmpl.loop_End=ret_le32(hca->_blockCount*0x80*8*wavRiff.fmtSamplingSize); hca->_loopStart=0; hca->_loopEnd=hca->_blockCount; } if(_comm_comment){ unsigned int noteSize=4+hca->_comm_len+1; if(noteSize&3)noteSize+=4-(noteSize&3); waveNote.noteSize=ret_le32(noteSize); } wavData.dataSize=ret_le32(hca->_blockCount*0x80*8*wavRiff.fmtSamplingSize+(wavSmpl.loop_End-wavSmpl.loop_Start)*loop); wavRiff.riffSize=ret_le32(0x1C+((hca->_loopFlg&&!loop)?sizeof(wavSmpl):0)+(hca->_comm_comment?8+wavNote.noteSize:0)+sizeof(wavData)+wavData.dataSize); fwrite(&wavRiff,sizeof(wavRiff),1,fp2); if(hca->_loopFlg&&!loop)fwrite(&wavSmpl,sizeof(wavSmpl),1,fp2); if(hca->_comm_comment){ int address=ftell(fp2); fwrite(&wavNote,sizeof(wavNote),1,fp2); fputs(hca->_comm_comment,fp2); fseek(fp2,address+8+wavNote.noteSize,SEEK_SET); } fwrite(&wavData,sizeof(wavData),1,fp2); // 相対ボリュームを調節 hca->_rva_volume*=volume; // デコード void *modeFunction; switch(mode){ case 0:modeFunction=(void *)clHCA_DecodeToWavefile_DecodeModeFloat;break; case 8:modeFunction=(void *)clHCA_DecodeToWavefile_DecodeMode8bit;break; case 16:modeFunction=(void *)clHCA_DecodeToWavefile_DecodeMode16bit;break; case 24:modeFunction=(void *)clHCA_DecodeToWavefile_DecodeMode24bit;break; case 32:modeFunction=(void *)clHCA_DecodeToWavefile_DecodeMode32bit;break; } data2=(unsigned char*) malloc(_blockSize); if(!data2){free(data1);fclose(fp2);fclose(fp1);return -1;} if(!loop){ if(clHCA_DecodeToWavefile_Decode(cl,fp1,fp2,_dataOffset,_blockCount,data2,modeFunction) < 0){free(data2);free(data1);fclose(fp2);fclose(fp1);return -1;} }else{ unsigned int loopBlockOffset=hca->_dataOffset+hca->_loopStart*hca->_blockSize; unsigned int loopBlockCount=hca->_loopEnd-hca->_loopStart; int i; if(clHCA_DecodeToWavefile_Decode(cl,fp1,fp2,_dataOffset,_loopEnd,data2,modeFunction) < 0){free(data2);free(data1);fclose(fp2);fclose(fp1);return -1;} for(i=1;i_blockSize,1,(FILE *)fp1); if(clHCA_Decode(cl,data,hca->_blockSize,address) < 0)return -1; for(i=0;i<8;i++){ for(j=0;j<0x80;j++){ for(k=0,m=hca->_channelCount;k_rva_volume; if(f>1){f=1;}else if(f<-1){f=-1;} ((void (*)(float,void *))modeFunction)(f,fp2); } } } } return 0; } #endif //-------------------------------------------------- // Decoder utilities //-------------------------------------------------- int clHCA_isOurFile0(const void *data){ clData d; clData_constructor(&d, data, 8); if((clData_CheckBit(&d,32)&0x7F7F7F7F)==0x48434100){/*'HCA\0'*/ clData_AddBit(&d,32+16); return clData_CheckBit(&d,16); } return -1; } int clHCA_isOurFile1(const void *data, unsigned int size){ int minsize; if (size<8)return -1; minsize = clHCA_isOurFile0(data); if (minsize < 0 || (unsigned int)minsize > size)return -1; if (clHCA_CheckSum(data, minsize, 0))return -1; return 0; } int clHCA_getInfo(clHCA *hca, clHCA_stInfo *info){ if (!hca->_validFile)return -1; info->version=hca->_version; info->dataOffset=hca->_dataOffset; info->samplingRate=hca->_samplingRate; info->channelCount=hca->_channelCount; info->blockSize=hca->_blockSize; info->blockCount=hca->_blockCount; info->loopEnabled=hca->_loopFlg; info->loopStart=hca->_loopStart; info->loopEnd=hca->_loopEnd; info->comment=hca->_comm_comment; return 0; } void clHCA_DecodeSamples16(clHCA *hca,signed short *samples){ const float scale = 32768.0f; float f; signed int s; int i, j; unsigned int k, l; //const float _rva_volume=hca->_rva_volume; for(i=0;i<8;i++){ for(j=0;j<0x80;j++){ for(k=0,l=hca->_channelCount;k_channel[k].wave[i][j]/**_rva_volume*/; if(f>1){f=1;}else if(f<-1){f=-1;} s=(signed int)(f*scale); if ((unsigned)(s+0x8000)&0xFFFF0000)s=(s>>31)^0x7FFF; *samples++=(signed short)s; } } } } //-------------------------------------------------- // Allocation and creation //-------------------------------------------------- int clHCA_sizeof(){ return sizeof(clHCA); } void clHCA_clear(clHCA *hca,unsigned int ciphKey1,unsigned int ciphKey2){ clHCA_constructor(hca,ciphKey1,ciphKey2); } void clHCA_done(clHCA *hca) { clHCA_destructor(hca); } clHCA * clHCA_new(unsigned int ciphKey1, unsigned int ciphKey2){ clHCA *hca = (clHCA *) malloc(clHCA_sizeof()); if (hca){ clHCA_constructor(hca,ciphKey1,ciphKey2); } return hca; } void clHCA_delete(clHCA *hca){ if (hca){ clHCA_destructor(hca); free(hca); } } //-------------------------------------------------- // ATH //-------------------------------------------------- static void clATH_Init0(clATH *ath); static void clATH_Init1(clATH *ath,unsigned int key); void clATH_constructor(clATH *ath){ memset(ath,0,sizeof(*ath)); clATH_Init0(ath); } static int clATH_Init(clATH *ath,int type,unsigned int key){ switch(type){ case 0:clATH_Init0(ath);break; case 1:clATH_Init1(ath,key);break; default:return -1; } return 0; } static const unsigned char * clATH_GetTable(clATH *ath){ return ath->_table; } void clATH_Init0(clATH *ath){ memset(ath->_table,0,sizeof(ath->_table)); } static const unsigned char clATH_list[]={ 0x78,0x5F,0x56,0x51,0x4E,0x4C,0x4B,0x49,0x48,0x48,0x47,0x46,0x46,0x45,0x45,0x45, 0x44,0x44,0x44,0x44,0x43,0x43,0x43,0x43,0x43,0x43,0x42,0x42,0x42,0x42,0x42,0x42, 0x42,0x42,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x40,0x40,0x40,0x40, 0x40,0x40,0x40,0x40,0x40,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F, 0x3F,0x3F,0x3F,0x3E,0x3E,0x3E,0x3E,0x3E,0x3E,0x3D,0x3D,0x3D,0x3D,0x3D,0x3D,0x3D, 0x3C,0x3C,0x3C,0x3C,0x3C,0x3C,0x3C,0x3C,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B, 0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B, 0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3B,0x3C,0x3C,0x3C,0x3C,0x3C,0x3C,0x3C,0x3C, 0x3D,0x3D,0x3D,0x3D,0x3D,0x3D,0x3D,0x3D,0x3E,0x3E,0x3E,0x3E,0x3E,0x3E,0x3E,0x3F, 0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F, 0x3F,0x3F,0x3F,0x3F,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40, 0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x41,0x41,0x41,0x41,0x41,0x41,0x41, 0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41, 0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42, 0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x43,0x43,0x43, 0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x44,0x44, 0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x45,0x45,0x45,0x45, 0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46, 0x46,0x46,0x47,0x47,0x47,0x47,0x47,0x47,0x47,0x47,0x47,0x47,0x48,0x48,0x48,0x48, 0x48,0x48,0x48,0x48,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x4A,0x4A,0x4A,0x4A, 0x4A,0x4A,0x4A,0x4A,0x4B,0x4B,0x4B,0x4B,0x4B,0x4B,0x4B,0x4C,0x4C,0x4C,0x4C,0x4C, 0x4C,0x4D,0x4D,0x4D,0x4D,0x4D,0x4D,0x4E,0x4E,0x4E,0x4E,0x4E,0x4E,0x4F,0x4F,0x4F, 0x4F,0x4F,0x4F,0x50,0x50,0x50,0x50,0x50,0x51,0x51,0x51,0x51,0x51,0x52,0x52,0x52, 0x52,0x52,0x53,0x53,0x53,0x53,0x54,0x54,0x54,0x54,0x54,0x55,0x55,0x55,0x55,0x56, 0x56,0x56,0x56,0x57,0x57,0x57,0x57,0x57,0x58,0x58,0x58,0x59,0x59,0x59,0x59,0x5A, 0x5A,0x5A,0x5A,0x5B,0x5B,0x5B,0x5B,0x5C,0x5C,0x5C,0x5D,0x5D,0x5D,0x5D,0x5E,0x5E, 0x5E,0x5F,0x5F,0x5F,0x60,0x60,0x60,0x61,0x61,0x61,0x61,0x62,0x62,0x62,0x63,0x63, 0x63,0x64,0x64,0x64,0x65,0x65,0x66,0x66,0x66,0x67,0x67,0x67,0x68,0x68,0x68,0x69, 0x69,0x6A,0x6A,0x6A,0x6B,0x6B,0x6B,0x6C,0x6C,0x6D,0x6D,0x6D,0x6E,0x6E,0x6F,0x6F, 0x70,0x70,0x70,0x71,0x71,0x72,0x72,0x73,0x73,0x73,0x74,0x74,0x75,0x75,0x76,0x76, 0x77,0x77,0x78,0x78,0x78,0x79,0x79,0x7A,0x7A,0x7B,0x7B,0x7C,0x7C,0x7D,0x7D,0x7E, 0x7E,0x7F,0x7F,0x80,0x80,0x81,0x81,0x82,0x83,0x83,0x84,0x84,0x85,0x85,0x86,0x86, 0x87,0x88,0x88,0x89,0x89,0x8A,0x8A,0x8B,0x8C,0x8C,0x8D,0x8D,0x8E,0x8F,0x8F,0x90, 0x90,0x91,0x92,0x92,0x93,0x94,0x94,0x95,0x95,0x96,0x97,0x97,0x98,0x99,0x99,0x9A, 0x9B,0x9B,0x9C,0x9D,0x9D,0x9E,0x9F,0xA0,0xA0,0xA1,0xA2,0xA2,0xA3,0xA4,0xA5,0xA5, 0xA6,0xA7,0xA7,0xA8,0xA9,0xAA,0xAA,0xAB,0xAC,0xAD,0xAE,0xAE,0xAF,0xB0,0xB1,0xB1, 0xB2,0xB3,0xB4,0xB5,0xB6,0xB6,0xB7,0xB8,0xB9,0xBA,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF, 0xC0,0xC1,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xC9,0xCA,0xCB,0xCC,0xCD, 0xCE,0xCF,0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,0xDA,0xDB,0xDC,0xDD, 0xDE,0xDF,0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xEA,0xEB,0xED,0xEE, 0xEF,0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFF,0xFF, }; void clATH_Init1(clATH *ath, unsigned int key){ unsigned int i, v; unsigned char *_table=ath->_table; for(i=0,v=0;i<0x80;i++,v+=key){ unsigned int index=v>>13; if(index>=0x28E){ memset(&_table[i],0xFF,0x80-i); break; } _table[i]=clATH_list[index]; } } //-------------------------------------------------- // 暗号化テーブル //-------------------------------------------------- static void clCipher_Init0(clCipher *cipher); static void clCipher_Init1(clCipher *cipher); static void clCipher_Init56(clCipher *cipher,unsigned int key1,unsigned int key2); void clCipher_constructor(clCipher *cipher){ memset(cipher,0,sizeof(*cipher)); clCipher_Init0(cipher); } static int clCipher_Init(clCipher *cipher,int type,unsigned int key1,unsigned int key2){ if(!(key1|key2))type=0; switch(type){ case 0:clCipher_Init0(cipher);break; case 1:clCipher_Init1(cipher);break; case 56:clCipher_Init56(cipher,key1,key2);break; default:return -1; } return 0; } static void clCipher_Mask(clCipher *cipher,void *data,int size){ unsigned char *_table=cipher->_table; unsigned char *d; for(d=(unsigned char *)data;size>0;d++,size--)*d=_table[*d]; } void clCipher_Init0(clCipher *cipher){ unsigned char *_table=cipher->_table; int i; for(i=0;i<0x100;i++)_table[i]=i; } void clCipher_Init1(clCipher *cipher){ unsigned char *_table=cipher->_table; int i, v; for(i=1,v=0;i<0xFF;i++){ v=(v*13+11)&0xFF; if(v==0||v==0xFF)v=(v*13+11)&0xFF; _table[i]=v; } _table[0]=0; _table[0xFF]=0xFF; } static void clCipher_Init56_CreateTable(unsigned char *r,unsigned char key); void clCipher_Init56(clCipher *cipher,unsigned int key1,unsigned int key2){ unsigned char *_table=cipher->_table; // テーブル1を生成 unsigned char t1[8]; unsigned char t2[0x10]; unsigned char t3[0x100],t31[0x10],t32[0x10],*t; int i, j, v; if(!key1)key2--; key1--; for(i=0;i<7;i++){ t1[i]=key1; key1=(key1>>8)|(key2<<24); key2>>=8; } // テーブル2 t2[0x00]=t1[1]; t2[0x01]=t1[1]^t1[6]; t2[0x02]=t1[2]^t1[3]; t2[0x03]=t1[2]; t2[0x04]=t1[2]^t1[1]; t2[0x05]=t1[3]^t1[4]; t2[0x06]=t1[3]; t2[0x07]=t1[3]^t1[2]; t2[0x08]=t1[4]^t1[5]; t2[0x09]=t1[4]; t2[0x0A]=t1[4]^t1[3]; t2[0x0B]=t1[5]^t1[6]; t2[0x0C]=t1[5]; t2[0x0D]=t1[5]^t1[4]; t2[0x0E]=t1[6]^t1[1]; t2[0x0F]=t1[6]; // テーブル3 t=t3; clCipher_Init56_CreateTable(t31,t1[0]); for(i=0;i<0x10;i++){ unsigned char v; clCipher_Init56_CreateTable(t32,t2[i]); v=t31[i]<<4; for(j=0;j<0x10;j++){ *(t++)=v|t32[j]; } } // CIPHテーブル t=&_table[1]; for(i=0,v=0;i<0x100;i++){ unsigned char a; v=(v+0x11)&0xFF; a=t3[v]; if(a!=0&&a!=0xFF)*(t++)=a; } _table[0]=0; _table[0xFF]=0xFF; } void clCipher_Init56_CreateTable(unsigned char *r,unsigned char key){ int mul=((key&1)<<3)|5; int add=(key&0xE)|1; int i; key>>=4; for(i=0;i<0x10;i++){ key=(key*mul+add)&0xF; *(r++)=key; } } //-------------------------------------------------- // デコード //-------------------------------------------------- static void stChannel_Decode1(stChannel *ch,clData *data,unsigned int a,int b,const unsigned char *ath); static void stChannel_Decode2(stChannel *ch,clData *data); static void stChannel_Decode3(stChannel *ch,unsigned int a,unsigned int b,unsigned int c,unsigned int d); static void stChannel_Decode4(stChannel *ch,int index,unsigned int a,unsigned int b,unsigned int c); static void stChannel_Decode5(stChannel *ch,int index); int clHCA_Decode(clHCA *hca,void *data,unsigned int size,unsigned int address){ // チェック if(!(data))return -1; // ヘッダ if(address==0){ char r[0x10]; unsigned int i, b; clData d; hca->_validFile = 0; clData_constructor(&d, data, size); // サイズチェック if(size_version=clData_GetBit(&d,16); hca->_dataOffset=clData_GetBit(&d,16); //if(!(_version<=0x200&&_version>0x101))return -1; // バージョンチェック(無効) if(size_dataOffset)return -1; //if(clHCA_CheckSum(hca,_dataOffset,0))return -1; // ヘッダの破損チェック(ヘッダ改変を有効にするため破損チェック無効) size-=sizeof(stHeader); }else{ return -1; } // fmt if(size>=sizeof(stFormat) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x666D7400){/*'fmt\0'*/ clData_AddBit(&d,32); hca->_channelCount=clData_GetBit(&d,8); hca->_samplingRate=clData_GetBit(&d,24); hca->_blockCount=clData_GetBit(&d,32); hca->_fmt_r01=clData_GetBit(&d,16); hca->_fmt_r02=clData_GetBit(&d,16); if(!(hca->_channelCount>=1&&hca->_channelCount<=16))return -1; if(!(hca->_samplingRate>=1&&hca->_samplingRate<=0x7FFFFF))return -1; size-=sizeof(stFormat); }else{ return -1; } // comp if(size>=sizeof(stCompress) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x636F6D70){/*'comp'*/ clData_AddBit(&d,32); hca->_blockSize=clData_GetBit(&d,16); hca->_comp_r01=clData_GetBit(&d,8); hca->_comp_r02=clData_GetBit(&d,8); hca->_comp_r03=clData_GetBit(&d,8); hca->_comp_r04=clData_GetBit(&d,8); hca->_comp_r05=clData_GetBit(&d,8); hca->_comp_r06=clData_GetBit(&d,8); hca->_comp_r07=clData_GetBit(&d,8); hca->_comp_r08=clData_GetBit(&d,8); clData_AddBit(&d,8+8); if(!((hca->_blockSize>=8&&hca->_blockSize<=0xFFFF)||(hca->_blockSize==0)))return -1; if(!(/*hca->_comp_r01>=0&&*/hca->_comp_r01<=hca->_comp_r02&&hca->_comp_r02<=0x1F))return -1; size-=sizeof(stCompress); } // dec else if(size>=sizeof(stDecode) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x64656300){/*'dec\0'*/ unsigned char count1,count2,enableCount2; clData_AddBit(&d,32); hca->_blockSize=clData_GetBit(&d,16); hca->_comp_r01=clData_GetBit(&d,8); hca->_comp_r02=clData_GetBit(&d,8); count1=clData_GetBit(&d,8); count2=clData_GetBit(&d,8); hca->_comp_r03=clData_GetBit(&d,4); hca->_comp_r04=clData_GetBit(&d,4); enableCount2=clData_GetBit(&d,8); hca->_comp_r05=count1+1; hca->_comp_r06=((enableCount2)?count2:count1)+1; hca->_comp_r07=hca->_comp_r05-hca->_comp_r06; hca->_comp_r08=0; if(!((hca->_blockSize>=8&&hca->_blockSize<=0xFFFF)||(hca->_blockSize==0)))return -1; if(!(/*hca->_comp_r01>=0&&*/hca->_comp_r01<=hca->_comp_r02&&hca->_comp_r02<=0x1F))return -1; if(!hca->_comp_r03)hca->_comp_r03=1; size-=sizeof(stDecode); }else{ return -1; } // vbr if(size>=sizeof(stVBR) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x76627200){/*'vbr\0'*/ clData_AddBit(&d,32); hca->_vbr_r01=clData_GetBit(&d,16); hca->_vbr_r02=clData_GetBit(&d,16); if(!(hca->_blockSize==0&&/*hca->_vbr_r01>=0&&*/hca->_vbr_r01<=0x1FF))return -1; }else{ hca->_vbr_r01=0; hca->_vbr_r02=0; } // ath if(size>=6 && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x61746800){/*'ath\0'*/ clData_AddBit(&d,32); hca->_ath_type=clData_GetBit(&d,16); }else{ hca->_ath_type=(hca->_version<0x200)?1:0;//v1.3ではデフォルト値が1になってたが、v2.0からATHテーブルが廃止されてるみたいなので0に } // loop if(size>=sizeof(stLoop) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x6C6F6F70){/*'loop'*/ clData_AddBit(&d,32); hca->_loopStart=clData_GetBit(&d,32); hca->_loopEnd=clData_GetBit(&d,32); hca->_loop_r01=clData_GetBit(&d,16); hca->_loop_r02=clData_GetBit(&d,16); hca->_loopFlg=1; if(!(/*hca->_loopStart>=0&&*/hca->_loopStart<=hca->_loopEnd&&hca->_loopEnd_blockCount))return -1; size-=sizeof(stLoop); }else{ hca->_loopStart=0; hca->_loopEnd=0; hca->_loop_r01=0; hca->_loop_r02=0x400; hca->_loopFlg=0; } // ciph if(size>=6 && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x63697068){/*'ciph'*/ clData_AddBit(&d,32); hca->_ciph_type=clData_GetBit(&d,16); if(!(hca->_ciph_type==0||hca->_ciph_type==1||hca->_ciph_type==0x38))return -1; size-=6; }else{ hca->_ciph_type=0; } // rva if(size>=sizeof(stRVA) && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x72766100){/*'rva\0'*/ union { unsigned int i; float f; } v; clData_AddBit(&d,32); v.i=clData_GetBit(&d,32); hca->_rva_volume=v.f; size-=sizeof(stRVA); }else{ hca->_rva_volume=1; } // comm if(size>=5 && (clData_CheckBit(&d,32)&0x7F7F7F7F)==0x636F6D6D){/*'comm'*/ void * newmem; unsigned int i; clData_AddBit(&d,32); hca->_comm_len=clData_GetBit(&d,8); if(hca->_comm_len>size)return -1; newmem=realloc(hca->_comm_comment,hca->_comm_len+1); if(!newmem)return -1; hca->_comm_comment=(char *)newmem; for(i=0;i_comm_len;++i) ((char *)newmem)[i]=clData_GetBit(&d,8); ((char *)newmem)[i]='\0'; size-=5+hca->_comm_len; }else{ hca->_comm_len=0; hca->_comm_comment=NULL; } // 初期化 if(clATH_Init(&hca->_ath,hca->_ath_type,hca->_samplingRate) < 0)return -1; if(clCipher_Init(&hca->_cipher,hca->_ciph_type,hca->_ciph_key1,hca->_ciph_key2) < 0)return -1; // 値チェック(ヘッダの改変ミスによるエラーを回避するため) if(!hca->_comp_r03)hca->_comp_r03=1;//0での除算を防ぐため // デコード準備 memset(hca->_channel,0,sizeof(hca->_channel)); if(!(hca->_comp_r01==1&&hca->_comp_r02==15))return -1; hca->_comp_r09=ceil2(hca->_comp_r05-(hca->_comp_r06+hca->_comp_r07),hca->_comp_r08); memset(r,0,sizeof(r)); b=hca->_channelCount/hca->_comp_r03; if(hca->_comp_r07&&b>1){ char *c=r; for(i=0;i_comp_r03;i++,c+=b){ switch(b){ case 2:c[0]=1;c[1]=2;break; case 3:c[0]=1;c[1]=2;break; case 4:c[0]=1;c[1]=2;if(hca->_comp_r04==0){c[2]=1;c[3]=2;}break; case 5:c[0]=1;c[1]=2;if(hca->_comp_r04<=2){c[3]=1;c[4]=2;}break; case 6:c[0]=1;c[1]=2;c[4]=1;c[5]=2;break; case 7:c[0]=1;c[1]=2;c[4]=1;c[5]=2;break; case 8:c[0]=1;c[1]=2;c[4]=1;c[5]=2;c[6]=1;c[7]=2;break; } } } for(i=0;i_channelCount;i++){ hca->_channel[i].type=r[i]; hca->_channel[i].value3=&hca->_channel[i].value[hca->_comp_r06+hca->_comp_r07]; hca->_channel[i].count=hca->_comp_r06+((r[i]!=2)?hca->_comp_r07:0); } hca->_validFile = 1; } // ブロックデータ else if(address>=hca->_dataOffset){ clData d; int magic; unsigned int i, j; if(!hca->_validFile)return -1; if(size_blockSize)return -1; if(clHCA_CheckSum(data,hca->_blockSize,0))return -1; clCipher_Mask(&hca->_cipher,data,hca->_blockSize); clData_constructor(&d,data,hca->_blockSize); magic=clData_GetBit(&d,16);//0xFFFF固定 if(magic==0xFFFF){ const unsigned int _channelCount=hca->_channelCount; int a=(clData_GetBit(&d,9)<<8)-clData_GetBit(&d,7); for(i=0;i<_channelCount;i++)stChannel_Decode1(&hca->_channel[i],&d,hca->_comp_r09,a,clATH_GetTable(&hca->_ath)); for(i=0;i<8;i++){ for(j=0;j<_channelCount;j++)stChannel_Decode2(&hca->_channel[j],&d); for(j=0;j<_channelCount;j++)stChannel_Decode3(&hca->_channel[j],hca->_comp_r09,hca->_comp_r08,hca->_comp_r07+hca->_comp_r06,hca->_comp_r05); for(j=0;j<_channelCount-1;j++)stChannel_Decode4(&hca->_channel[j],i,hca->_comp_r05-hca->_comp_r06,hca->_comp_r06,hca->_comp_r07); for(j=0;j<_channelCount;j++)stChannel_Decode5(&hca->_channel[j],i); } } } return 0; } //-------------------------------------------------- // デコード第一段階 // ベースデータの読み込み //-------------------------------------------------- static const unsigned char stChannel_Decode1_scalelist[]={ // v2.0 0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0D,0x0D, 0x0D,0x0D,0x0D,0x0D,0x0C,0x0C,0x0C,0x0C, 0x0C,0x0C,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B, 0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x09, 0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08, 0x08,0x08,0x08,0x07,0x06,0x06,0x05,0x04, 0x04,0x04,0x03,0x03,0x03,0x02,0x02,0x02, 0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // v1.3 //0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0D,0x0D, //0x0D,0x0D,0x0D,0x0D,0x0C,0x0C,0x0C,0x0C, //0x0C,0x0C,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B, //0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x09, //0x09,0x09,0x09,0x09,0x09,0x08,0x08,0x08, //0x08,0x08,0x08,0x07,0x06,0x06,0x05,0x04, //0x04,0x04,0x03,0x03,0x03,0x02,0x02,0x02, //0x02,0x01,0x01,0x01,0x01,0x01,0x01,0x01, }; static const unsigned int stChannel_Decode1_valueInt[]={ 0x342A8D26,0x34633F89,0x3497657D,0x34C9B9BE,0x35066491,0x353311C4,0x356E9910,0x359EF532, 0x35D3CCF1,0x360D1ADF,0x363C034A,0x367A83B3,0x36A6E595,0x36DE60F5,0x371426FF,0x3745672A, 0x37838359,0x37AF3B79,0x37E97C38,0x381B8D3A,0x384F4319,0x388A14D5,0x38B7FBF0,0x38F5257D, 0x3923520F,0x39599D16,0x3990FA4D,0x39C12C4D,0x3A00B1ED,0x3A2B7A3A,0x3A647B6D,0x3A9837F0, 0x3ACAD226,0x3B071F62,0x3B340AAF,0x3B6FE4BA,0x3B9FD228,0x3BD4F35B,0x3C0DDF04,0x3C3D08A4, 0x3C7BDFED,0x3CA7CD94,0x3CDF9613,0x3D14F4F0,0x3D467991,0x3D843A29,0x3DB02F0E,0x3DEAC0C7, 0x3E1C6573,0x3E506334,0x3E8AD4C6,0x3EB8FBAF,0x3EF67A41,0x3F243516,0x3F5ACB94,0x3F91C3D3, 0x3FC238D2,0x400164D2,0x402C6897,0x4065B907,0x40990B88,0x40CBEC15,0x4107DB35,0x413504F3, }; static const unsigned int stChannel_Decode1_scaleInt[]={ 0x00000000,0x3F2AAAAB,0x3ECCCCCD,0x3E924925,0x3E638E39,0x3E3A2E8C,0x3E1D89D9,0x3E088889, 0x3D842108,0x3D020821,0x3C810204,0x3C008081,0x3B804020,0x3B002008,0x3A801002,0x3A000801, }; static const float *stChannel_Decode1_valueFloat=(const float *)stChannel_Decode1_valueInt; static const float *stChannel_Decode1_scaleFloat=(const float *)stChannel_Decode1_scaleInt; void stChannel_Decode1(stChannel *ch,clData *data,unsigned int a,int b,const unsigned char *ath){ unsigned int i; const unsigned int count=ch->count; char *value=ch->value; char *value2=ch->value2; char *value3=ch->value3; char *scale=ch->scale; float *base=ch->base; int v=clData_GetBit(data,3); if(v>=6){ for(i=0;i>1,v4; value[0]=v1; for(i=1;itype==2){ v=clData_CheckBit(data,4);value2[0]=v; if(v<15)for(i=0;i<8;i++)value2[i]=clData_GetBit(data,4); }else{ for(i=0;i>8)-((v*5)>>1)+1; if(v<0)v=15; else if(v>=0x39)v=1; else v=stChannel_Decode1_scalelist[v]; } scale[i]=v; } memset(&scale[count],0,0x80-count); for(i=0;icount; const char *scale=ch->scale; const float *base=ch->base; float *block=ch->block; for(i=0;i>1); if(!v)clData_AddBit(data,-1); f=(float)v; } block[i]=base[i]*f; } memset(&block[count],0,sizeof(float)*(0x80-count)); } //-------------------------------------------------- // デコード第三段階 // ブロックデータ修正その１ ※v2.0から追加 //-------------------------------------------------- static const unsigned int stChannel_Decode3_listInt[2][0x40]={ { 0x00000000,0x00000000,0x32A0B051,0x32D61B5E,0x330EA43A,0x333E0F68,0x337D3E0C,0x33A8B6D5, 0x33E0CCDF,0x3415C3FF,0x34478D75,0x3484F1F6,0x34B123F6,0x34EC0719,0x351D3EDA,0x355184DF, 0x358B95C2,0x35B9FCD2,0x35F7D0DF,0x36251958,0x365BFBB8,0x36928E72,0x36C346CD,0x370218AF, 0x372D583F,0x3766F85B,0x3799E046,0x37CD078C,0x3808980F,0x38360094,0x38728177,0x38A18FAF, 0x38D744FD,0x390F6A81,0x393F179A,0x397E9E11,0x39A9A15B,0x39E2055B,0x3A16942D,0x3A48A2D8, 0x3A85AAC3,0x3AB21A32,0x3AED4F30,0x3B1E196E,0x3B52A81E,0x3B8C57CA,0x3BBAFF5B,0x3BF9295A, 0x3C25FED7,0x3C5D2D82,0x3C935A2B,0x3CC4563F,0x3D02CD87,0x3D2E4934,0x3D68396A,0x3D9AB62B, 0x3DCE248C,0x3E0955EE,0x3E36FD92,0x3E73D290,0x3EA27043,0x3ED87039,0x3F1031DC,0x3F40213B, },{ 0x3F800000,0x3FAA8D26,0x3FE33F89,0x4017657D,0x4049B9BE,0x40866491,0x40B311C4,0x40EE9910, 0x411EF532,0x4153CCF1,0x418D1ADF,0x41BC034A,0x41FA83B3,0x4226E595,0x425E60F5,0x429426FF, 0x42C5672A,0x43038359,0x432F3B79,0x43697C38,0x439B8D3A,0x43CF4319,0x440A14D5,0x4437FBF0, 0x4475257D,0x44A3520F,0x44D99D16,0x4510FA4D,0x45412C4D,0x4580B1ED,0x45AB7A3A,0x45E47B6D, 0x461837F0,0x464AD226,0x46871F62,0x46B40AAF,0x46EFE4BA,0x471FD228,0x4754F35B,0x478DDF04, 0x47BD08A4,0x47FBDFED,0x4827CD94,0x485F9613,0x4894F4F0,0x48C67991,0x49043A29,0x49302F0E, 0x496AC0C7,0x499C6573,0x49D06334,0x4A0AD4C6,0x4A38FBAF,0x4A767A41,0x4AA43516,0x4ADACB94, 0x4B11C3D3,0x4B4238D2,0x4B8164D2,0x4BAC6897,0x4BE5B907,0x4C190B88,0x4C4BEC15,0x00000000, } }; static const float *stChannel_Decode3_listFloat=(float *)stChannel_Decode3_listInt[1]; void stChannel_Decode3(stChannel *ch,unsigned int a,unsigned int b,unsigned int c,unsigned int d){ if(ch->type!=2&&b){ unsigned int i, j, k, l; const char *value=ch->value; const char *value3=ch->value3; float *block=ch->block; for(i=0,k=c,l=c-1;itype==1&&c){ float f1=((float *)stChannel_Decode4_listInt)[ch[1].value2[index]]; float f2=f1-2.0f; float *s=&ch->block[b]; float *d=&ch[1].block[b]; unsigned int i; for(i=0;iblock;d=ch->wav1; for(i=0,count1=1,count2=0x40;i<7;i++,count1<<=1,count2>>=1){ float *d1=d; float *d2=&d[count2]; float *w; for(j=0;jwav1;d=ch->block; for(i=0,count1=0x40,count2=1;i<7;i++,count1>>=1,count2<<=1){ const float *list1Float=(const float *)stChannel_Decode5_list1Int[i]; const float *list2Float=(const float *)stChannel_Decode5_list2Int[i]; float *d1, *d2, *w; s1=s; s2=&s1[count2]; d1=d; d2=&d1[count2*2-1]; for(j=0;jwav2; for(i=0;i<0x80;i++)*(d++)=*(s++); s=(const float *)stChannel_Decode5_list3Int;d=ch->wave[index]; s1=&ch->wav2[0x40];s2=ch->wav3; for(i=0;i<0x40;i++)*(d++)=*(s1++)**(s++)+*(s2++); for(i=0;i<0x40;i++)*(d++)=*(s++)**(--s1)-*(s2++); s1=&ch->wav2[0x40-1];d=ch->wav3; for(i=0;i<0x40;i++)*(d++)=*(s1--)**(--s); for(i=0;i<0x40;i++)*(d++)=*(--s)**(++s1); }