diff options
Diffstat (limited to 'newgrf.c')
| -rw-r--r-- | newgrf.c | 40 |
1 files changed, 12 insertions, 28 deletions
@@ -149,12 +149,8 @@ static inline byte grf_load_byte(byte **buf) static uint16 grf_load_word(byte **buf) { - uint16 val; - byte *p = *buf; - val = p[0]; - val |= p[1] << 8; - *buf = p + 2; - return val; + uint16 val = grf_load_byte(buf); + return val | (grf_load_byte(buf) << 8); } static uint16 grf_load_extended(byte** buf) @@ -167,14 +163,8 @@ static uint16 grf_load_extended(byte** buf) static uint32 grf_load_dword(byte **buf) { - uint32 val; - byte *p = *buf; - val = p[0]; - val |= p[1] << 8; - val |= p[2] << 16; - val |= p[3] << 24; - *buf = p + 4; - return val; + uint32 val = grf_load_word(buf); + return val | (grf_load_word(buf) << 16); } static uint32 grf_load_var(byte size, byte **buf) @@ -802,14 +792,8 @@ static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int switch (prop) { case 0x08: /* Class ID */ FOR_EACH_OBJECT { - uint32 classid; - - /* classid, for a change, is big-endian */ - classid = *(buf++) << 24; - classid |= *(buf++) << 16; - classid |= *(buf++) << 8; - classid |= *(buf++); - + /* Swap classid because we read it in BE meaning WAYP or DFLT */ + uint32 classid = BSWAP32(grf_load_dword(&buf)); statspec[i].sclass = AllocateStationClass(classid); } break; @@ -2134,19 +2118,19 @@ static void GRFInfo(byte *buf, int len) const char *name; const char *info; - check_length(len, 8, "GRFInfo"); - version = buf[1]; - /* this is de facto big endian - grf_load_dword() unsuitable */ - grfid = buf[2] << 24 | buf[3] << 16 | buf[4] << 8 | buf[5]; - name = (const char*)(buf + 6); + check_length(len, 8, "GRFInfo"); buf++; + version = grf_load_byte(buf); + grfid = grf_load_dword(&buf); + name = (const char*)buf; info = name + strlen(name) + 1; _cur_grffile->grfid = grfid; _cur_grffile->grf_version = version; _cur_grffile->flags |= 0x0001; /* set active flag */ + /* Do swap the GRFID for displaying purposes since people expect that */ DEBUG(grf, 1) ("[%s] Loaded GRFv%d set %08lx - %s:\n%s", - _cur_grffile->filename, version, grfid, name, info); + _cur_grffile->filename, version, BSWAP32(grfid), name, info); } /* Action 0x0A */ |