annotate system/file.h @ 22:759202cf1756

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author thib
date Sat, 01 Nov 2008 21:14:12 +0000
parents 223b71206888
children 3a6aaeab7b4e
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1 /* file.h : KANON の圧縮ファイル・PDT ファイル(画像ファイル)の展開の
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2 * ためのクラス
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3 * class FILESEARCH : ファイルの管理を行う
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4 * class ARCINFO : 書庫ファイルの中の1つのファイルを扱うクラス
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5 * class PDTCONV : PDT ファイルの展開を行う。
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6 */
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7
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8 /*
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9 *
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10 * Copyright (C) 2000- Kazunori Ueno(JAGARL) <jagarl@creator.club.ne.jp>
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License as published by
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14 * the Free Software Foundation; either version 2 of the License, or
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15 * (at your option) any later version.
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16 *
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17 * This program is distributed in the hope that it will be useful,
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18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 * GNU General Public License for more details.
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21 *
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22 * You should have received a copy of the GNU General Public License
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23 * along with this program; if not, write to the Free Software
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24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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25 *
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26 */
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27
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28 #ifndef __KANON_FILE_H__
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29 #define __KANON_FILE_H__
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30
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31 #ifndef DIR_SPLIT
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32 #define DIR_SPLIT '/' /* UNIX */
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33 #endif
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34
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35 // read 'KANON' compressed file
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36
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37 #include<stdio.h>
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38 #include<stdlib.h>
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39 #include<string.h>
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40 #include<sys/types.h>
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41
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42 #ifdef HAVE_CONFIG_H
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43 # include "config.h"
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44 #endif
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45
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46 #if defined(__sparc) || defined(sparc)
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47 # if !defined(WORDS_BIGENDIAN)
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48 # define WORDS_BIGENDIAN 1
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49 # endif
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50 #endif
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51
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52 #define INT_SIZE 4
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53
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54 static int read_little_endian_int(const char* buf) {
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55 const unsigned char *p = (const unsigned char *) buf;
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56 return (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0];
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57 }
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58
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59 static int read_little_endian_short(const char* buf) {
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60 const unsigned char *p = (const unsigned char *) buf;
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61 return (p[1] << 8) | p[0];
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62 }
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63
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64 static int write_little_endian_int(char* buf, int number) {
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65 int c = read_little_endian_int(buf);
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66 unsigned char *p = (unsigned char *) buf;
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67 unsigned int unum = (unsigned int) number;
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68 p[0] = unum & 255;
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69 unum >>= 8;
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70 p[1] = unum & 255;
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71 unum >>= 8;
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72 p[2] = unum & 255;
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73 unum >>= 8;
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74 p[3] = unum & 255;
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75 return c;
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76 }
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77
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78 static int write_little_endian_short(char* buf, int number) {
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79 int c = read_little_endian_short(buf);
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80 unsigned char *p = (unsigned char *) buf;
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81 unsigned int unum = (unsigned int) number;
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82 p[0] = unum & 255;
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83 unum >>= 8;
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84 p[1] = unum & 255;
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85 return c;
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86 }
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87
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88
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89 /*********************************************
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90 ** FILESEARCH:
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91 ** 書庫ファイル/ディレクトリを含め、
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92 ** 全ファイルの管理を行う。
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93 **
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94 ** 最初に、設定ファイルからファイルの種類ごとに
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95 ** 実際に入っているディレクトリ、書庫を設定する
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96 **
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97 ** 以降はFind() メソッドで実際のファイルの内容を得る
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98 **
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99 */
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100
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101 /* ARCFILE と DIRFILE はファイル種類ごとの情報 */
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102 class ARCFILE;
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103 class DIRFILE;
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104 class SCN2kFILE;
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105 /* ARCINFO はファイルを読み込むために必要 */
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106 class ARCINFO;
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107 class ARCFILE_ATOM;
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108 class FILESEARCH {
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109 public:
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110 #define TYPEMAX 14
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111 enum FILETYPE {
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112 /* 一応、0 - 15 まで reserved */
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113 ALL = 1, /* dat/ 以下のファイル(デフォルトの検索先) */
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114 ROOT= 2, /* ゲームのインストールディレクトリ */
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115 PDT = 3, /* default: PDT/ */
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116 SCN = 4, /* default: DAT/SEEN.TXT */
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117 ANM = 5, /* default: DAT/ALLANM.ANL */
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118 ARD = 6, /* default: DAT/ALLARD.ARD */
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119 CUR = 7, /* default: DAT/ALLCUR.CUR */
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120 MID = 8, /* default: ALL */
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121 WAV = 9, /* default: ALL */
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122 KOE = 10, /* default: KOE/ */
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123 BGM = 11, /* default: BGM */
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124 MOV = 12, /* default : MOV */
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125 GAN = 13 /* default : MOV */
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126 };
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127 enum ARCTYPE {ATYPE_DIR, ATYPE_ARC, ATYPE_SCN2k};
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128 private:
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129 /* InitRoot() の時点で初期化される変数 */
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130 DIRFILE* root_dir;
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131 DIRFILE* dat_dir;
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132 ARCFILE* searcher[TYPEMAX];
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133 /* ファイルの存在位置の information */
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134 ARCTYPE is_archived[TYPEMAX];
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135 char* filenames[TYPEMAX];
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136 /* デフォルトの information */
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137 static ARCTYPE default_is_archived[TYPEMAX];
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138 static char* default_dirnames[TYPEMAX];
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139 public:
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140 FILESEARCH(void);
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141 ~FILESEARCH();
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142 /* 初めにゲームのデータがあるディレクトリを設定する必要がある */
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143 int InitRoot(char* root);
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144 /* ファイルの型ごとの情報をセットする */
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145 void SetFileInformation(FILETYPE type, ARCTYPE is_arc,
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146 char* filename);
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147 /* 複数のファイルを一つの型に関連づける */
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148 void AppendFileInformation(FILETYPE type, ARCTYPE is_arc,
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149 char* filename);
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150 ARCFILE* MakeARCFILE(ARCTYPE tp, char* filename);
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151 /* fname で指定された名前のファイルを検索 */
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152 class ARCINFO* Find(FILETYPE type, const char* fname, const char* ext=0);
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153 /* ある種類のファイルをすべてリストアップ
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154 ** 末尾は NULL pointer
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155 */
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156 char** ListAll(FILETYPE type);
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157 };
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158
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159 class ARCINFO {
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160 protected:
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161 /* ファイルそのものの情報 */
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162 ARCFILE_ATOM& info;
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163 char* arcfile;
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164 /* mmap している場合、その情報 */
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165 bool use_mmap;
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166 char* mmapped_memory;
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167 int fd;
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168 /* ファイル内容の入っているバッファ */
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169 const char* data;
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170
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171 protected:
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172 ARCINFO(const char* arcfile, ARCFILE_ATOM& from); // only from ARCFILE
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173 friend class ARCFILE;
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174 friend class DIRFILE;
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175
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176 virtual bool ExecExtract(void);
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177 public:
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178 /* dest は256byte 程度の余裕があること */
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179 static void Extract(char*& dest, char*& src, char* destend, char* srcend);
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180 static void Extract2k(char*& dest, char*& src, char* destend, char* srcend);
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181 virtual ~ARCINFO();
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182 /* 必要なら Read 前に呼ぶことで処理を分割できる */
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183 int Size(void) const;
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184 char* CopyRead(void); /* Read() して内容のコピーを返す */
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185 const char* Read(void);
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186 /* ファイルが regular file の場合、ファイル名を帰す */
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187 /* そうでないなら 0 を帰す */
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188 const char* Path(void) const;
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189 FILE* OpenFile(int* length=0) const; /* 互換性のため:raw file の場合、ファイルを開く */
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190 };
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191
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192 class GRPCONV {
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193 public:
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194 int width;
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195 int height;
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196 bool is_mask;
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197
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198 const char* filename;
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199 const char* data;
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200 int datalen;
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201
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202 int Width(void) { return width;}
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203 int Height(void) { return height;}
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204 bool IsMask(void) { return is_mask;}
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205
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206 GRPCONV(void);
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207 virtual ~GRPCONV();
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208 void Init(const char* fname, const char* data, int dlen, int width, int height, bool is_mask);
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209
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210 virtual bool Read(char* image) = 0;
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211 static GRPCONV* AssignConverter(const char* inbuf, int inlen, const char* fname);
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212 static GRPCONV* AssignConverter(ARCINFO* info) {
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213 const char* dat = info->Read();
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214 if (dat == 0) return 0;
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215 return AssignConverter(dat, info->Size(), "???");
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216 }
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217 void CopyRGBA(char* image, const char* from);
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218 void CopyRGB(char* image, const char* from);
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219 void CopyRGBA_rev(char* image, const char* from);
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220 void CopyRGB_rev(char* image, const char* from);
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221 };
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222
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223 extern FILESEARCH file_searcher;
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224
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225 #endif // !defined(__KANON_FILE_H__)