mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-16 00:12:51 +00:00
308 lines
6.6 KiB
C
308 lines
6.6 KiB
C
/* $Id$ */
|
|
|
|
#include "stdafx.h"
|
|
#include "openttd.h"
|
|
#include "functions.h"
|
|
#include "macros.h"
|
|
#include "debug.h"
|
|
#include "variables.h"
|
|
#include "saveload.h"
|
|
#include "md5.h"
|
|
#include "newgrf.h"
|
|
#include "newgrf_config.h"
|
|
|
|
#include "fileio.h"
|
|
#include "fios.h"
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
|
|
#ifdef WIN32
|
|
# include <io.h>
|
|
#else
|
|
# include <unistd.h>
|
|
# include <dirent.h>
|
|
#endif /* WIN32 */
|
|
|
|
|
|
GRFConfig *_all_grfs;
|
|
GRFConfig *_grfconfig;
|
|
GRFConfig *_grfconfig_newgame;
|
|
|
|
|
|
/* Calculate the MD5 Sum for a GRF */
|
|
static bool CalcGRFMD5Sum(GRFConfig *config)
|
|
{
|
|
FILE *f;
|
|
char filename[MAX_PATH];
|
|
md5_state_t md5state;
|
|
md5_byte_t buffer[1024];
|
|
size_t len;
|
|
|
|
/* open the file */
|
|
snprintf(filename, lengthof(filename), "%s%s", _paths.data_dir, config->filename);
|
|
f = fopen(filename, "rb");
|
|
if (f == NULL) return false;
|
|
|
|
/* calculate md5sum */
|
|
md5_init(&md5state);
|
|
while ((len = fread(buffer, 1, sizeof(buffer), f)) != 0) {
|
|
md5_append(&md5state, buffer, len);
|
|
}
|
|
md5_finish(&md5state, config->md5sum);
|
|
|
|
fclose(f);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/* Find the GRFID and calculate the md5sum */
|
|
bool FillGRFDetails(GRFConfig *config)
|
|
{
|
|
if (!FioCheckFileExists(config->filename)) {
|
|
SETBIT(config->flags, GCF_NOT_FOUND);
|
|
return false;
|
|
}
|
|
|
|
/* Find and load the Action 8 information */
|
|
/* 62 is the last file slot before sample.cat.
|
|
* Should perhaps be some "don't care" value */
|
|
LoadNewGRFFile(config, 62, GLS_FILESCAN);
|
|
|
|
/* Skip if the grfid is 0 (not read) or 0xFFFFFFFF (ttdp system grf) */
|
|
if (config->grfid == 0 || config->grfid == 0xFFFFFFFF) return false;
|
|
|
|
return CalcGRFMD5Sum(config);
|
|
}
|
|
|
|
|
|
/* Clear a GRF Config list */
|
|
void ClearGRFConfigList(GRFConfig *config)
|
|
{
|
|
GRFConfig *c, *next;
|
|
for (c = config; c != NULL; c = next) {
|
|
next = c->next;
|
|
free(c->filename);
|
|
free(c->name);
|
|
free(c->info);
|
|
free(c);
|
|
}
|
|
}
|
|
|
|
|
|
/* Copy a GRF Config list */
|
|
static void CopyGRFConfigList(GRFConfig **dst, GRFConfig *src)
|
|
{
|
|
GRFConfig *c;
|
|
|
|
for (; src != NULL; src = src->next) {
|
|
c = calloc(1, sizeof(*c));
|
|
*c = *src;
|
|
c->filename = strdup(src->filename);
|
|
if (src->name != NULL) c->name = strdup(src->name);
|
|
if (src->info != NULL) c->info = strdup(src->info);
|
|
|
|
*dst = c;
|
|
dst = &c->next;
|
|
}
|
|
}
|
|
|
|
|
|
/* Reset the current GRF Config to either blank or newgame settings */
|
|
void ResetGRFConfig(bool defaults)
|
|
{
|
|
ClearGRFConfigList(_grfconfig);
|
|
_grfconfig = NULL;
|
|
if (defaults) CopyGRFConfigList(&_grfconfig, _grfconfig_newgame);
|
|
}
|
|
|
|
|
|
/* Check if all GRFs in the GRF Config can be loaded */
|
|
bool IsGoodGRFConfigList(void)
|
|
{
|
|
bool res = true;
|
|
GRFConfig *c;
|
|
|
|
for (c = _grfconfig; c != NULL; c = c->next) {
|
|
const GRFConfig *f = FindGRFConfig(c->grfid, c->md5sum);
|
|
if (f == NULL) {
|
|
char buf[512], *p = buf;
|
|
uint i;
|
|
|
|
p += snprintf(p, lastof(buf) - p, "Couldn't find NewGRF %08X (%s) checksum ", BSWAP32(c->grfid), c->filename);
|
|
for (i = 0; i < lengthof(c->md5sum); i++) {
|
|
p += snprintf(p, lastof(buf) - p, "%02X", c->md5sum[i]);
|
|
}
|
|
ShowInfo(buf);
|
|
|
|
res = false;
|
|
} else {
|
|
DEBUG(grf, 1) ("[GRF] Loading GRF %X from %s", BSWAP32(c->grfid), f->filename);
|
|
c->filename = strdup(f->filename);
|
|
c->name = strdup(f->name);
|
|
c->info = strdup(f->info);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
extern bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb);
|
|
|
|
/* Scan a path for NewGRFs */
|
|
static uint ScanPath(const char *path)
|
|
{
|
|
uint num = 0;
|
|
struct stat sb;
|
|
struct dirent *dirent;
|
|
DIR *dir;
|
|
GRFConfig *c;
|
|
|
|
if ((dir = opendir(path)) == NULL) return 0;
|
|
|
|
while ((dirent = readdir(dir)) != NULL) {
|
|
const char *d_name = FS2OTTD(dirent->d_name);
|
|
char filename[MAX_PATH];
|
|
|
|
if (!FiosIsValidFile(path, dirent, &sb)) continue;
|
|
|
|
snprintf(filename, lengthof(filename), "%s" PATHSEP "%s", path, d_name);
|
|
|
|
if (sb.st_mode & S_IFDIR) {
|
|
/* Directory */
|
|
if (strcmp(d_name, ".") == 0 || strcmp(d_name, "..") == 0) continue;
|
|
num += ScanPath(filename);
|
|
} else if (sb.st_mode & S_IFREG) {
|
|
/* File */
|
|
char *ext = strrchr(filename, '.');
|
|
char *file = filename + strlen(_paths.data_dir) + 1; // Crop base path
|
|
|
|
/* If no extension or extension isn't .grf, skip the file */
|
|
if (ext == NULL) continue;
|
|
if (strcasecmp(ext, ".grf") != 0) continue;
|
|
|
|
c = calloc(1, sizeof(*c));
|
|
c->filename = strdup(file);
|
|
|
|
if (FillGRFDetails(c)) {
|
|
if (_all_grfs == NULL) {
|
|
_all_grfs = c;
|
|
} else {
|
|
/* Insert file into list at a position determined by its
|
|
* name, so the list is sorted as we go along */
|
|
GRFConfig **pd, *d;
|
|
for (pd = &_all_grfs; (d = *pd) != NULL; pd = &d->next) {
|
|
if (strcasecmp(c->name, d->name) <= 0) break;
|
|
}
|
|
c->next = d;
|
|
*pd = c;
|
|
}
|
|
|
|
num++;
|
|
} else {
|
|
/* File couldn't be opened, or is either not a NewGRF or is a
|
|
* 'system' NewGRF, so forget about it. */
|
|
free(c->filename);
|
|
free(c->name);
|
|
free(c->info);
|
|
free(c);
|
|
}
|
|
}
|
|
}
|
|
|
|
closedir(dir);
|
|
|
|
return num;
|
|
}
|
|
|
|
|
|
/* Scan for all NewGRFs */
|
|
void ScanNewGRFFiles(void)
|
|
{
|
|
uint num;
|
|
|
|
ClearGRFConfigList(_all_grfs);
|
|
_all_grfs = NULL;
|
|
|
|
DEBUG(grf, 1) ("[GRF] Scanning for NewGRFs");
|
|
num = ScanPath(_paths.data_dir);
|
|
DEBUG(grf, 1) ("[GRF] Scan complete, found %d files", num);
|
|
}
|
|
|
|
|
|
/* Find a NewGRF in the scanned list */
|
|
const GRFConfig *FindGRFConfig(uint32 grfid, uint8 *md5sum)
|
|
{
|
|
GRFConfig *c;
|
|
static const uint8 blanksum[sizeof(c->md5sum)] = { 0 };
|
|
|
|
for (c = _all_grfs; c != NULL; c = c->next) {
|
|
if (c->grfid == grfid) {
|
|
if (memcmp(blanksum, c->md5sum, sizeof(c->md5sum)) == 0) CalcGRFMD5Sum(c);
|
|
if (memcmp(md5sum, c->md5sum, sizeof(c->md5sum)) == 0) return c;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Retrieve a NewGRF from the current config by its grfid */
|
|
const GRFConfig *GetGRFConfig(uint32 grfid)
|
|
{
|
|
GRFConfig *c;
|
|
|
|
for (c = _grfconfig; c != NULL; c = c->next) {
|
|
if (c->grfid == grfid) return c;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static const SaveLoad _grfconfig_desc[] = {
|
|
SLE_STR(GRFConfig, filename, SLE_STR, 0x40),
|
|
SLE_VAR(GRFConfig, grfid, SLE_UINT32),
|
|
SLE_ARR(GRFConfig, md5sum, SLE_UINT8, 16),
|
|
SLE_ARR(GRFConfig, param, SLE_UINT32, 0x80),
|
|
SLE_VAR(GRFConfig, num_params, SLE_UINT8),
|
|
SLE_END()
|
|
};
|
|
|
|
|
|
static void Save_NGRF(void)
|
|
{
|
|
GRFConfig *c;
|
|
int index = 0;
|
|
|
|
for (c = _grfconfig; c != NULL; c = c->next) {
|
|
SlSetArrayIndex(index++);
|
|
SlObject(c, _grfconfig_desc);
|
|
}
|
|
}
|
|
|
|
|
|
static void Load_NGRF(void)
|
|
{
|
|
GRFConfig *first = NULL;
|
|
GRFConfig **last = &first;
|
|
|
|
while (SlIterateArray() != -1) {
|
|
GRFConfig *c = calloc(1, sizeof(*c));
|
|
SlObject(c, _grfconfig_desc);
|
|
|
|
/* Append our configuration to the list */
|
|
*last = c;
|
|
last = &c->next;
|
|
}
|
|
|
|
ClearGRFConfigList(_grfconfig);
|
|
_grfconfig = first;
|
|
}
|
|
|
|
const ChunkHandler _newgrf_chunk_handlers[] = {
|
|
{ 'NGRF', Save_NGRF, Load_NGRF, CH_ARRAY | CH_LAST }
|
|
};
|
|
|