firmware of NBCTRLV1 / AYC01
Dependencies: SDFileSystemEx mbed
nlg_mini.cpp@1:29f0e76a9999, 2016-04-18 (annotated)
- Committer:
- bkc_mbed
- Date:
- Mon Apr 18 00:36:37 2016 +0000
- Revision:
- 1:29f0e76a9999
- Parent:
- 0:722cc5360dc3
v1.30
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bkc_mbed | 0:722cc5360dc3 | 1 | |
bkc_mbed | 0:722cc5360dc3 | 2 | // |
bkc_mbed | 0:722cc5360dc3 | 3 | // nlg_mini.cpp |
bkc_mbed | 0:722cc5360dc3 | 4 | // |
bkc_mbed | 0:722cc5360dc3 | 5 | |
bkc_mbed | 0:722cc5360dc3 | 6 | #include <stdio.h> |
bkc_mbed | 0:722cc5360dc3 | 7 | #include <stdlib.h> |
bkc_mbed | 0:722cc5360dc3 | 8 | #include <string.h> |
bkc_mbed | 0:722cc5360dc3 | 9 | |
bkc_mbed | 0:722cc5360dc3 | 10 | #include "nlg_mini.h" |
bkc_mbed | 0:722cc5360dc3 | 11 | |
bkc_mbed | 0:722cc5360dc3 | 12 | /* 単位を扱いやすいように */ |
bkc_mbed | 0:722cc5360dc3 | 13 | typedef unsigned char byte; |
bkc_mbed | 0:722cc5360dc3 | 14 | typedef unsigned short word; |
bkc_mbed | 0:722cc5360dc3 | 15 | typedef unsigned long dword; |
bkc_mbed | 0:722cc5360dc3 | 16 | |
bkc_mbed | 0:722cc5360dc3 | 17 | // 変数読み出し(WORD) |
bkc_mbed | 0:722cc5360dc3 | 18 | word ReadWORD(byte *p) |
bkc_mbed | 0:722cc5360dc3 | 19 | { |
bkc_mbed | 0:722cc5360dc3 | 20 | return |
bkc_mbed | 0:722cc5360dc3 | 21 | ((word)p[0]) | |
bkc_mbed | 0:722cc5360dc3 | 22 | ((word)p[1])<<8; |
bkc_mbed | 0:722cc5360dc3 | 23 | } |
bkc_mbed | 0:722cc5360dc3 | 24 | |
bkc_mbed | 0:722cc5360dc3 | 25 | // 変数読み出し(DWORD) |
bkc_mbed | 0:722cc5360dc3 | 26 | dword ReadDWORD(byte *p) |
bkc_mbed | 0:722cc5360dc3 | 27 | { |
bkc_mbed | 0:722cc5360dc3 | 28 | return |
bkc_mbed | 0:722cc5360dc3 | 29 | ((dword)p[0]) | |
bkc_mbed | 0:722cc5360dc3 | 30 | ((dword)p[1])<<8 | |
bkc_mbed | 0:722cc5360dc3 | 31 | ((dword)p[2])<<16 | |
bkc_mbed | 0:722cc5360dc3 | 32 | ((dword)p[3])<<24; |
bkc_mbed | 0:722cc5360dc3 | 33 | } |
bkc_mbed | 0:722cc5360dc3 | 34 | |
bkc_mbed | 0:722cc5360dc3 | 35 | // NLGファイルを開く |
bkc_mbed | 0:722cc5360dc3 | 36 | int OpenNLG(NLG_CTX *np, const char *filename) |
bkc_mbed | 0:722cc5360dc3 | 37 | { |
bkc_mbed | 0:722cc5360dc3 | 38 | byte hdr[0x60]; |
bkc_mbed | 0:722cc5360dc3 | 39 | |
bkc_mbed | 0:722cc5360dc3 | 40 | np->fp = fopen(filename, "rb"); |
bkc_mbed | 0:722cc5360dc3 | 41 | |
bkc_mbed | 0:722cc5360dc3 | 42 | // ファイルが開けない |
bkc_mbed | 0:722cc5360dc3 | 43 | if (!np->fp) |
bkc_mbed | 0:722cc5360dc3 | 44 | return NLG_FILEERR; |
bkc_mbed | 0:722cc5360dc3 | 45 | |
bkc_mbed | 0:722cc5360dc3 | 46 | // ヘッダ部分の読み込み |
bkc_mbed | 0:722cc5360dc3 | 47 | fread(hdr, 0x60, 1, np->fp); |
bkc_mbed | 0:722cc5360dc3 | 48 | |
bkc_mbed | 0:722cc5360dc3 | 49 | // IDの確認 |
bkc_mbed | 0:722cc5360dc3 | 50 | if (memcmp(hdr, "NLG1", 4) != 0) |
bkc_mbed | 0:722cc5360dc3 | 51 | { |
bkc_mbed | 0:722cc5360dc3 | 52 | CloseNLG(np); |
bkc_mbed | 0:722cc5360dc3 | 53 | return NLG_UNK_FORMAT; |
bkc_mbed | 0:722cc5360dc3 | 54 | } |
bkc_mbed | 0:722cc5360dc3 | 55 | |
bkc_mbed | 0:722cc5360dc3 | 56 | // バージョン |
bkc_mbed | 0:722cc5360dc3 | 57 | np->version = ReadWORD(hdr + 4); |
bkc_mbed | 0:722cc5360dc3 | 58 | |
bkc_mbed | 0:722cc5360dc3 | 59 | // クロック |
bkc_mbed | 0:722cc5360dc3 | 60 | np->baseclk = ReadDWORD(hdr + 72); |
bkc_mbed | 0:722cc5360dc3 | 61 | |
bkc_mbed | 0:722cc5360dc3 | 62 | // ティック |
bkc_mbed | 0:722cc5360dc3 | 63 | np->tick = ReadDWORD(hdr + 76); |
bkc_mbed | 0:722cc5360dc3 | 64 | np->tick_us = np->tick / 4; |
bkc_mbed | 0:722cc5360dc3 | 65 | |
bkc_mbed | 0:722cc5360dc3 | 66 | // 長さ |
bkc_mbed | 0:722cc5360dc3 | 67 | np->length = ReadDWORD(hdr + 88); |
bkc_mbed | 0:722cc5360dc3 | 68 | |
bkc_mbed | 0:722cc5360dc3 | 69 | // 位置 |
bkc_mbed | 0:722cc5360dc3 | 70 | fseek(np->fp, 0x60, SEEK_SET); |
bkc_mbed | 0:722cc5360dc3 | 71 | |
bkc_mbed | 0:722cc5360dc3 | 72 | // CTC初期化 |
bkc_mbed | 0:722cc5360dc3 | 73 | np->ctc0 = np->ctc3 = 0; |
bkc_mbed | 0:722cc5360dc3 | 74 | |
bkc_mbed | 0:722cc5360dc3 | 75 | return NLG_OK; |
bkc_mbed | 0:722cc5360dc3 | 76 | } |
bkc_mbed | 0:722cc5360dc3 | 77 | |
bkc_mbed | 0:722cc5360dc3 | 78 | // ファイルを閉じる |
bkc_mbed | 0:722cc5360dc3 | 79 | void CloseNLG(NLG_CTX *np) |
bkc_mbed | 0:722cc5360dc3 | 80 | { |
bkc_mbed | 0:722cc5360dc3 | 81 | if (!np->fp) |
bkc_mbed | 0:722cc5360dc3 | 82 | return; |
bkc_mbed | 0:722cc5360dc3 | 83 | |
bkc_mbed | 0:722cc5360dc3 | 84 | fclose(np->fp); |
bkc_mbed | 0:722cc5360dc3 | 85 | |
bkc_mbed | 0:722cc5360dc3 | 86 | #if defined(__MICROLIB) && defined(__ARMCC_VERSION) // with microlib and ARM compiler |
bkc_mbed | 0:722cc5360dc3 | 87 | free(np->fp); |
bkc_mbed | 0:722cc5360dc3 | 88 | #endif |
bkc_mbed | 0:722cc5360dc3 | 89 | |
bkc_mbed | 0:722cc5360dc3 | 90 | np->fp = NULL; |
bkc_mbed | 0:722cc5360dc3 | 91 | } |
bkc_mbed | 0:722cc5360dc3 | 92 | |
bkc_mbed | 0:722cc5360dc3 | 93 | // データの読み出し |
bkc_mbed | 0:722cc5360dc3 | 94 | int ReadNLG(NLG_CTX *np) |
bkc_mbed | 0:722cc5360dc3 | 95 | { |
bkc_mbed | 0:722cc5360dc3 | 96 | return fgetc(np->fp); |
bkc_mbed | 0:722cc5360dc3 | 97 | } |
bkc_mbed | 0:722cc5360dc3 | 98 | |
bkc_mbed | 0:722cc5360dc3 | 99 | // ファイルポインタの位置を取得 |
bkc_mbed | 0:722cc5360dc3 | 100 | long TellNLG(NLG_CTX *np) |
bkc_mbed | 0:722cc5360dc3 | 101 | { |
bkc_mbed | 0:722cc5360dc3 | 102 | return ftell(np->fp); |
bkc_mbed | 0:722cc5360dc3 | 103 | } |
bkc_mbed | 0:722cc5360dc3 | 104 | |
bkc_mbed | 0:722cc5360dc3 | 105 | // ファイルポインタの位置を設定 |
bkc_mbed | 0:722cc5360dc3 | 106 | void SeekNLG(NLG_CTX *np, long pos) |
bkc_mbed | 0:722cc5360dc3 | 107 | { |
bkc_mbed | 0:722cc5360dc3 | 108 | fseek(np->fp, pos, SEEK_SET); |
bkc_mbed | 0:722cc5360dc3 | 109 | } |
bkc_mbed | 0:722cc5360dc3 | 110 | |
bkc_mbed | 0:722cc5360dc3 | 111 | // ティック(us)の取得 |
bkc_mbed | 0:722cc5360dc3 | 112 | int GetTickUsNLG(NLG_CTX *np) |
bkc_mbed | 0:722cc5360dc3 | 113 | { |
bkc_mbed | 0:722cc5360dc3 | 114 | return np->tick_us; |
bkc_mbed | 0:722cc5360dc3 | 115 | } |
bkc_mbed | 0:722cc5360dc3 | 116 | |
bkc_mbed | 0:722cc5360dc3 | 117 | // Set Tick |
bkc_mbed | 0:722cc5360dc3 | 118 | // (CTC0 * 64us) * CTC3 |
bkc_mbed | 0:722cc5360dc3 | 119 | static inline void SetTickNLG(NLG_CTX *np) |
bkc_mbed | 0:722cc5360dc3 | 120 | { |
bkc_mbed | 0:722cc5360dc3 | 121 | np->tick = ((np->ctc0 * 256) * np->ctc3); |
bkc_mbed | 0:722cc5360dc3 | 122 | np->tick_us = np->tick / 4; |
bkc_mbed | 0:722cc5360dc3 | 123 | } |
bkc_mbed | 0:722cc5360dc3 | 124 | |
bkc_mbed | 0:722cc5360dc3 | 125 | // CTC0値の設定 |
bkc_mbed | 0:722cc5360dc3 | 126 | void SetCTC0_NLG(NLG_CTX *np, int value) |
bkc_mbed | 0:722cc5360dc3 | 127 | { |
bkc_mbed | 0:722cc5360dc3 | 128 | np->ctc0 = value; |
bkc_mbed | 0:722cc5360dc3 | 129 | SetTickNLG(np); |
bkc_mbed | 0:722cc5360dc3 | 130 | } |
bkc_mbed | 0:722cc5360dc3 | 131 | |
bkc_mbed | 0:722cc5360dc3 | 132 | // CTC3値の設定 |
bkc_mbed | 0:722cc5360dc3 | 133 | void SetCTC3_NLG(NLG_CTX *np, int value) |
bkc_mbed | 0:722cc5360dc3 | 134 | { |
bkc_mbed | 0:722cc5360dc3 | 135 | np->ctc3 = value; |
bkc_mbed | 0:722cc5360dc3 | 136 | SetTickNLG(np); |
bkc_mbed | 0:722cc5360dc3 | 137 | } |
bkc_mbed | 0:722cc5360dc3 | 138 | |
bkc_mbed | 0:722cc5360dc3 | 139 | // 曲の長さを得る |
bkc_mbed | 0:722cc5360dc3 | 140 | int GetLengthNLG(NLG_CTX *np) |
bkc_mbed | 0:722cc5360dc3 | 141 | { |
bkc_mbed | 0:722cc5360dc3 | 142 | return np->length; |
bkc_mbed | 0:722cc5360dc3 | 143 | } |
bkc_mbed | 0:722cc5360dc3 | 144 | |
bkc_mbed | 0:722cc5360dc3 | 145 | // ベースクロックを得る |
bkc_mbed | 0:722cc5360dc3 | 146 | int GetBaseClkNLG(NLG_CTX *np) |
bkc_mbed | 0:722cc5360dc3 | 147 | { |
bkc_mbed | 0:722cc5360dc3 | 148 | return np->baseclk; |
bkc_mbed | 0:722cc5360dc3 | 149 | } |