author | belugas |
Thu, 07 Dec 2006 21:21:02 +0000 | |
changeset 5280 | 6fe67df6df80 |
parent 5234 | 91b7def5e4b2 |
child 5296 | 6a4aaa66eed3 |
permissions | -rw-r--r-- |
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/* $Id$ */ |
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#include "stdafx.h" |
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#include "openttd.h" |
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#include "functions.h" |
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#include "macros.h" |
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#include "debug.h" |
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#include "variables.h" |
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#include "saveload.h" |
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#include "md5.h" |
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#include "newgrf.h" |
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#include "newgrf_config.h" |
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#include "fileio.h" |
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#include "fios.h" |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#ifdef WIN32 |
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# include <io.h> |
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#else |
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# include <unistd.h> |
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# include <dirent.h> |
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#endif /* WIN32 */ |
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GRFConfig *_all_grfs; |
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GRFConfig *_grfconfig; |
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GRFConfig *_grfconfig_newgame; |
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/* Calculate the MD5 Sum for a GRF */ |
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static bool CalcGRFMD5Sum(GRFConfig *config) |
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{ |
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FILE *f; |
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char filename[MAX_PATH]; |
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md5_state_t md5state; |
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md5_byte_t buffer[1024]; |
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size_t len; |
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/* open the file */ |
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snprintf(filename, lengthof(filename), "%s%s", _path.data_dir, config->filename); |
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f = fopen(filename, "rb"); |
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if (f == NULL) return false; |
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/* calculate md5sum */ |
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md5_init(&md5state); |
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while ((len = fread(buffer, 1, sizeof(buffer), f)) != 0) { |
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md5_append(&md5state, buffer, len); |
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} |
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md5_finish(&md5state, config->md5sum); |
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fclose(f); |
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return true; |
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} |
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/* Find the GRFID and calculate the md5sum */ |
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bool FillGRFDetails(GRFConfig *config) |
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{ |
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if (!FioCheckFileExists(config->filename)) { |
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SETBIT(config->flags, GCF_NOT_FOUND); |
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return false; |
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} |
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/* Find and load the Action 8 information */ |
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/* 62 is the last file slot before sample.cat. |
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* Should perhaps be some "don't care" value */ |
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LoadNewGRFFile(config, 62, GLS_FILESCAN); |
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/* Skip if the grfid is 0 (not read) or 0xFFFFFFFF (ttdp system grf) */ |
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if (config->grfid == 0 || config->grfid == 0xFFFFFFFF) return false; |
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return CalcGRFMD5Sum(config); |
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} |
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/* Clear a GRF Config list */ |
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void ClearGRFConfigList(GRFConfig *config) |
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{ |
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GRFConfig *c, *next; |
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for (c = config; c != NULL; c = next) { |
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next = c->next; |
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free(c->filename); |
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free(c->name); |
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free(c->info); |
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free(c); |
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} |
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} |
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/* Copy a GRF Config list */ |
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static void CopyGRFConfigList(GRFConfig **dst, GRFConfig *src) |
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{ |
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GRFConfig *c; |
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97 |
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for (; src != NULL; src = src->next) { |
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c = calloc(1, sizeof(*c)); |
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*c = *src; |
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c->filename = strdup(src->filename); |
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if (src->name != NULL) c->name = strdup(src->name); |
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if (src->info != NULL) c->info = strdup(src->info); |
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*dst = c; |
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dst = &c->next; |
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} |
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} |
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109 |
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110 |
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/* Reset the current GRF Config to either blank or newgame settings */ |
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112 |
void ResetGRFConfig(bool defaults) |
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{ |
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114 |
ClearGRFConfigList(_grfconfig); |
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115 |
_grfconfig = NULL; |
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116 |
if (defaults) CopyGRFConfigList(&_grfconfig, _grfconfig_newgame); |
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117 |
} |
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118 |
|
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119 |
|
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120 |
/* Check if all GRFs in the GRF Config can be loaded */ |
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121 |
bool IsGoodGRFConfigList(void) |
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122 |
{ |
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123 |
bool res = true; |
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124 |
GRFConfig *c; |
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125 |
|
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126 |
for (c = _grfconfig; c != NULL; c = c->next) { |
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127 |
const GRFConfig *f = FindGRFConfig(c->grfid, c->md5sum); |
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128 |
if (f == NULL) { |
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129 |
char buf[512], *p = buf; |
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130 |
uint i; |
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131 |
|
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132 |
p += snprintf(p, lastof(buf) - p, "Couldn't find NewGRF %08X (%s) checksum ", BSWAP32(c->grfid), c->filename); |
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133 |
for (i = 0; i < lengthof(c->md5sum); i++) { |
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134 |
p += snprintf(p, lastof(buf) - p, "%02X", c->md5sum[i]); |
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135 |
} |
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136 |
ShowInfo(buf); |
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137 |
|
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138 |
res = false; |
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139 |
} else { |
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140 |
DEBUG(grf, 1) ("[GRF] Loading GRF %X from %s", BSWAP32(c->grfid), f->filename); |
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141 |
c->filename = strdup(f->filename); |
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142 |
c->name = strdup(f->name); |
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143 |
c->info = strdup(f->info); |
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144 |
} |
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145 |
} |
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146 |
|
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147 |
return res; |
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148 |
} |
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149 |
|
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150 |
|
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151 |
extern bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb); |
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152 |
|
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153 |
/* Scan a path for NewGRFs */ |
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154 |
static uint ScanPath(const char *path) |
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155 |
{ |
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156 |
uint num = 0; |
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157 |
struct stat sb; |
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158 |
struct dirent *dirent; |
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159 |
DIR *dir; |
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160 |
GRFConfig *c; |
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161 |
|
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162 |
if ((dir = opendir(path)) == NULL) return 0; |
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163 |
|
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164 |
while ((dirent = readdir(dir)) != NULL) { |
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165 |
const char *d_name = FS2OTTD(dirent->d_name); |
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166 |
char filename[MAX_PATH]; |
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|
167 |
|
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168 |
if (!FiosIsValidFile(path, dirent, &sb)) continue; |
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|
169 |
|
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170 |
snprintf(filename, lengthof(filename), "%s" PATHSEP "%s", path, d_name); |
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|
171 |
|
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172 |
if (sb.st_mode & S_IFDIR) { |
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173 |
/* Directory */ |
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174 |
if (strcmp(d_name, ".") == 0 || strcmp(d_name, "..") == 0) continue; |
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175 |
num += ScanPath(filename); |
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176 |
} else if (sb.st_mode & S_IFREG) { |
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177 |
/* File */ |
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178 |
char *ext = strrchr(filename, '.'); |
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179 |
char *file = filename + strlen(_path.data_dir) + 1; // Crop base path |
5228
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180 |
|
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181 |
/* If no extension or extension isn't .grf, skip the file */ |
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182 |
if (ext == NULL) continue; |
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|
183 |
if (strcasecmp(ext, ".grf") != 0) continue; |
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|
184 |
|
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|
185 |
c = calloc(1, sizeof(*c)); |
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|
186 |
c->filename = strdup(file); |
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|
187 |
|
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|
188 |
if (FillGRFDetails(c)) { |
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189 |
if (_all_grfs == NULL) { |
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190 |
_all_grfs = c; |
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191 |
} else { |
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192 |
/* Insert file into list at a position determined by its |
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193 |
* name, so the list is sorted as we go along */ |
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194 |
GRFConfig **pd, *d; |
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195 |
for (pd = &_all_grfs; (d = *pd) != NULL; pd = &d->next) { |
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196 |
if (strcasecmp(c->name, d->name) <= 0) break; |
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197 |
} |
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198 |
c->next = d; |
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199 |
*pd = c; |
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200 |
} |
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|
201 |
|
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|
202 |
num++; |
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|
203 |
} else { |
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204 |
/* File couldn't be opened, or is either not a NewGRF or is a |
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205 |
* 'system' NewGRF, so forget about it. */ |
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206 |
free(c->filename); |
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|
207 |
free(c->name); |
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208 |
free(c->info); |
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209 |
free(c); |
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210 |
} |
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211 |
} |
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212 |
} |
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213 |
|
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214 |
closedir(dir); |
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215 |
|
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216 |
return num; |
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217 |
} |
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218 |
|
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219 |
|
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220 |
/* Scan for all NewGRFs */ |
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221 |
void ScanNewGRFFiles(void) |
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{ |
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uint num; |
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ClearGRFConfigList(_all_grfs); |
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_all_grfs = NULL; |
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DEBUG(grf, 1) ("[GRF] Scanning for NewGRFs"); |
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num = ScanPath(_path.data_dir); |
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DEBUG(grf, 1) ("[GRF] Scan complete, found %d files", num); |
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} |
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/* Find a NewGRF in the scanned list */ |
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const GRFConfig *FindGRFConfig(uint32 grfid, uint8 *md5sum) |
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{ |
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GRFConfig *c; |
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static const uint8 blanksum[sizeof(c->md5sum)] = { 0 }; |
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for (c = _all_grfs; c != NULL; c = c->next) { |
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if (c->grfid == grfid) { |
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if (memcmp(blanksum, c->md5sum, sizeof(c->md5sum)) == 0) CalcGRFMD5Sum(c); |
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if (memcmp(md5sum, c->md5sum, sizeof(c->md5sum)) == 0) return c; |
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} |
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} |
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return NULL; |
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} |
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/* Retrieve a NewGRF from the current config by its grfid */ |
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const GRFConfig *GetGRFConfig(uint32 grfid) |
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{ |
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GRFConfig *c; |
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for (c = _grfconfig; c != NULL; c = c->next) { |
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if (c->grfid == grfid) return c; |
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} |
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return NULL; |
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} |
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static const SaveLoad _grfconfig_desc[] = { |
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SLE_STR(GRFConfig, filename, SLE_STR, 0x40), |
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SLE_VAR(GRFConfig, grfid, SLE_UINT32), |
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SLE_ARR(GRFConfig, md5sum, SLE_UINT8, 16), |
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SLE_ARR(GRFConfig, param, SLE_UINT32, 0x80), |
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SLE_VAR(GRFConfig, num_params, SLE_UINT8), |
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SLE_END() |
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}; |
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static void Save_NGRF(void) |
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{ |
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GRFConfig *c; |
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int index = 0; |
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for (c = _grfconfig; c != NULL; c = c->next) { |
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SlSetArrayIndex(index++); |
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SlObject(c, _grfconfig_desc); |
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} |
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} |
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static void Load_NGRF(void) |
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{ |
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GRFConfig *first = NULL; |
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GRFConfig **last = &first; |
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while (SlIterateArray() != -1) { |
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GRFConfig *c = calloc(1, sizeof(*c)); |
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SlObject(c, _grfconfig_desc); |
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/* Append our configuration to the list */ |
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*last = c; |
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last = &c->next; |
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} |
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ClearGRFConfigList(_grfconfig); |
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_grfconfig = first; |
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} |
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const ChunkHandler _newgrf_chunk_handlers[] = { |
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{ 'NGRF', Save_NGRF, Load_NGRF, CH_ARRAY | CH_LAST } |
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}; |
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