diff options
Diffstat (limited to 'src/p_saveg.c')
| -rw-r--r-- | src/p_saveg.c | 154 |
1 files changed, 95 insertions, 59 deletions
diff --git a/src/p_saveg.c b/src/p_saveg.c index fbec93a0..558d7d8c 100644 --- a/src/p_saveg.c +++ b/src/p_saveg.c @@ -1,7 +1,7 @@ // Emacs style mode select -*- C++ -*- //----------------------------------------------------------------------------- // -// $Id: p_saveg.c 300 2006-01-19 18:46:24Z fraggle $ +// $Id: p_saveg.c 367 2006-02-15 12:57:58Z fraggle $ // // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 2005 Simon Howard @@ -22,6 +22,11 @@ // 02111-1307, USA. // // $Log$ +// Revision 1.8 2006/02/15 12:57:58 fraggle +// Remove the savegame buffer entirely. Keep the old savegame size limit +// bug add a "vanilla_savegame_limit" config file option which allows +// the limit to be disabled if necessary. +// // Revision 1.7 2006/01/19 18:46:24 fraggle // Move savegame header read/write code into p_saveg.c // @@ -55,7 +60,9 @@ //----------------------------------------------------------------------------- static const char -rcsid[] = "$Id: p_saveg.c 300 2006-01-19 18:46:24Z fraggle $"; +rcsid[] = "$Id: p_saveg.c 367 2006-02-15 12:57:58Z fraggle $"; + +#include <stdio.h> #include "dstrings.h" #include "deh_main.h" @@ -71,13 +78,8 @@ rcsid[] = "$Id: p_saveg.c 300 2006-01-19 18:46:24Z fraggle $"; #define SAVEGAME_EOF 0x1d #define VERSIONSIZE 16 -byte* save_p; - - -// Pads save_p to a 4-byte boundary -// so that the load/save works on SGI&Gecko. -#define PADSAVEP() save_p += (4 - ((int) save_p & 3)) & 3 - +FILE *save_stream; +int savegamelength; char *P_SaveGameFile(int slot) { @@ -95,63 +97,89 @@ char *P_SaveGameFile(int slot) static byte saveg_read8(void) { - int result; - - result = *save_p; + byte result; - save_p += 1; + fread(&result, 1, 1, save_stream); return result; } static void saveg_write8(byte value) { - *save_p = value; - - save_p += 1; + fwrite(&value, 1, 1, save_stream); } static short saveg_read16(void) { int result; - result = save_p[0] | (save_p[1] << 8); - - save_p += 2; + result = saveg_read8(); + result |= saveg_read8() << 8; return result; } static void saveg_write16(short value) { - save_p[0] = value & 0xff; - save_p[1] = (value >> 8) & 0xff; - - save_p += 2; + saveg_write8(value & 0xff); + saveg_write8((value >> 8) & 0xff); } static int saveg_read32(void) { int result; - result = save_p[0] | (save_p[1] << 8) - | (save_p[2] << 16) | (save_p[3] << 24); - - save_p += 4; + result = saveg_read8(); + result |= saveg_read8() << 8; + result |= saveg_read8() << 16; + result |= saveg_read8() << 24; return result; } static void saveg_write32(int value) { - save_p[0] = value & 0xff; - save_p[1] = (value >> 8) & 0xff; - save_p[2] = (value >> 16) & 0xff; - save_p[3] = (value >> 24) & 0xff; + saveg_write8(value & 0xff); + saveg_write8((value >> 8) & 0xff); + saveg_write8((value >> 16) & 0xff); + saveg_write8((value >> 24) & 0xff); +} + +// Pad to 4-byte boundaries + +static void saveg_read_pad(void) +{ + unsigned long pos; + int padding; + int i; + + pos = ftell(save_stream); + + padding = (4 - (pos & 3)) & 3; - save_p += 4; + for (i=0; i<padding; ++i) + { + saveg_read8(); + } } +static void saveg_write_pad(void) +{ + unsigned long pos; + int padding; + int i; + + pos = ftell(save_stream); + + padding = (4 - (pos & 3)) & 3; + + for (i=0; i<padding; ++i) + { + saveg_write8(0); + } +} + + // Pointers static void *saveg_readp(void) @@ -1321,13 +1349,16 @@ void P_WriteSaveGameHeader(char *description) char name[VERSIONSIZE]; int i; - memcpy (save_p, description, SAVESTRINGSIZE); - save_p += SAVESTRINGSIZE; + for (i=0; description[i] != '\0'; ++i) + saveg_write8(description[i]); + for (; i<SAVESTRINGSIZE; ++i) + saveg_write8(0); memset (name,0,sizeof(name)); sprintf (name,"version %i",DOOM_VERSION); - memcpy (save_p, name, VERSIONSIZE); - save_p += VERSIONSIZE; + + for (i=0; i<VERSIONSIZE; ++i) + saveg_write8(name[i]); saveg_write8(gameskill); saveg_write8(gameepisode); @@ -1350,15 +1381,20 @@ boolean P_ReadSaveGameHeader(void) int i; byte a, b, c; char vcheck[VERSIONSIZE]; + char read_vcheck[VERSIONSIZE]; - save_p += SAVESTRINGSIZE; - // skip the description field + + for (i=0; i<SAVESTRINGSIZE; ++i) + saveg_read8(); + + for (i=0; i<VERSIONSIZE; ++i) + read_vcheck[i] = saveg_read8(); + memset (vcheck,0,sizeof(vcheck)); sprintf (vcheck,"version %i",DOOM_VERSION); - if (strcmp ((char *) save_p, vcheck)) + if (strcmp(read_vcheck, vcheck) != 0) return false; // bad version - save_p += VERSIONSIZE; gameskill = saveg_read8(); gameepisode = saveg_read8(); @@ -1410,7 +1446,7 @@ void P_ArchivePlayers (void) if (!playeringame[i]) continue; - PADSAVEP(); + saveg_write_pad(); saveg_write_player_t(&players[i]); } @@ -1430,7 +1466,7 @@ void P_UnArchivePlayers (void) if (!playeringame[i]) continue; - PADSAVEP(); + saveg_read_pad(); saveg_read_player_t(&players[i]); @@ -1563,7 +1599,7 @@ void P_ArchiveThinkers (void) if (th->function.acp1 == (actionf_p1)P_MobjThinker) { saveg_write8(tc_mobj); - PADSAVEP(); + saveg_write_pad(); saveg_write_mobj_t((mobj_t *) th); continue; @@ -1613,7 +1649,7 @@ void P_UnArchiveThinkers (void) return; // end of list case tc_mobj: - PADSAVEP(); + saveg_read_pad(); mobj = Z_Malloc (sizeof(*mobj), PU_LEVEL, NULL); saveg_read_mobj_t(mobj); @@ -1681,7 +1717,7 @@ void P_ArchiveSpecials (void) if (i<MAXCEILINGS) { saveg_write8(tc_ceiling); - PADSAVEP(); + saveg_write_pad(); saveg_write_ceiling_t((ceiling_t *) th); } continue; @@ -1690,7 +1726,7 @@ void P_ArchiveSpecials (void) if (th->function.acp1 == (actionf_p1)T_MoveCeiling) { saveg_write8(tc_ceiling); - PADSAVEP(); + saveg_write_pad(); saveg_write_ceiling_t((ceiling_t *) th); continue; } @@ -1698,7 +1734,7 @@ void P_ArchiveSpecials (void) if (th->function.acp1 == (actionf_p1)T_VerticalDoor) { saveg_write8(tc_door); - PADSAVEP(); + saveg_write_pad(); saveg_write_vldoor_t((vldoor_t *) th); continue; } @@ -1706,7 +1742,7 @@ void P_ArchiveSpecials (void) if (th->function.acp1 == (actionf_p1)T_MoveFloor) { saveg_write8(tc_floor); - PADSAVEP(); + saveg_write_pad(); saveg_write_floormove_t((floormove_t *) th); continue; } @@ -1714,7 +1750,7 @@ void P_ArchiveSpecials (void) if (th->function.acp1 == (actionf_p1)T_PlatRaise) { saveg_write8(tc_plat); - PADSAVEP(); + saveg_write_pad(); saveg_write_plat_t((plat_t *) th); continue; } @@ -1722,7 +1758,7 @@ void P_ArchiveSpecials (void) if (th->function.acp1 == (actionf_p1)T_LightFlash) { saveg_write8(tc_flash); - PADSAVEP(); + saveg_write_pad(); saveg_write_lightflash_t((lightflash_t *) th); continue; } @@ -1730,7 +1766,7 @@ void P_ArchiveSpecials (void) if (th->function.acp1 == (actionf_p1)T_StrobeFlash) { saveg_write8(tc_strobe); - PADSAVEP(); + saveg_write_pad(); saveg_write_strobe_t((strobe_t *) th); continue; } @@ -1738,7 +1774,7 @@ void P_ArchiveSpecials (void) if (th->function.acp1 == (actionf_p1)T_Glow) { saveg_write8(tc_glow); - PADSAVEP(); + saveg_write_pad(); saveg_write_glow_t((glow_t *) th); continue; } @@ -1776,7 +1812,7 @@ void P_UnArchiveSpecials (void) return; // end of list case tc_ceiling: - PADSAVEP(); + saveg_read_pad(); ceiling = Z_Malloc (sizeof(*ceiling), PU_LEVEL, NULL); saveg_read_ceiling_t(ceiling); ceiling->sector->specialdata = ceiling; @@ -1789,7 +1825,7 @@ void P_UnArchiveSpecials (void) break; case tc_door: - PADSAVEP(); + saveg_read_pad(); door = Z_Malloc (sizeof(*door), PU_LEVEL, NULL); saveg_read_vldoor_t(door); door->sector->specialdata = door; @@ -1798,7 +1834,7 @@ void P_UnArchiveSpecials (void) break; case tc_floor: - PADSAVEP(); + saveg_read_pad(); floor = Z_Malloc (sizeof(*floor), PU_LEVEL, NULL); saveg_read_floormove_t(floor); floor->sector->specialdata = floor; @@ -1807,7 +1843,7 @@ void P_UnArchiveSpecials (void) break; case tc_plat: - PADSAVEP(); + saveg_read_pad(); plat = Z_Malloc (sizeof(*plat), PU_LEVEL, NULL); saveg_read_plat_t(plat); plat->sector->specialdata = plat; @@ -1820,7 +1856,7 @@ void P_UnArchiveSpecials (void) break; case tc_flash: - PADSAVEP(); + saveg_read_pad(); flash = Z_Malloc (sizeof(*flash), PU_LEVEL, NULL); saveg_read_lightflash_t(flash); flash->thinker.function.acp1 = (actionf_p1)T_LightFlash; @@ -1828,7 +1864,7 @@ void P_UnArchiveSpecials (void) break; case tc_strobe: - PADSAVEP(); + saveg_read_pad(); strobe = Z_Malloc (sizeof(*strobe), PU_LEVEL, NULL); saveg_read_strobe_t(strobe); strobe->thinker.function.acp1 = (actionf_p1)T_StrobeFlash; @@ -1836,7 +1872,7 @@ void P_UnArchiveSpecials (void) break; case tc_glow: - PADSAVEP(); + saveg_read_pad(); glow = Z_Malloc (sizeof(*glow), PU_LEVEL, NULL); saveg_read_glow_t(glow); glow->thinker.function.acp1 = (actionf_p1)T_Glow; |