260 lines
6.4 KiB
C
260 lines
6.4 KiB
C
/* SCCS Id: @(#)pctiles.c 3.4 1995/07/31 */
|
|
/* Copyright (c) NetHack PC Development Team 1993, 1994 */
|
|
/* NetHack may be freely redistributed. See license for details. */
|
|
/* */
|
|
/*
|
|
* pctiles.c - PC Graphical Tile Support Routines
|
|
*
|
|
*Edit History:
|
|
* Initial Creation M. Allison 93/10/30
|
|
*
|
|
*/
|
|
|
|
#include "hack.h"
|
|
|
|
#ifdef USE_TILES
|
|
|
|
#if defined(__GO32__) || defined(__DJGPP__)
|
|
#include <unistd.h>
|
|
#define TILES_IN_RAM /* allow tiles to be read into ram */
|
|
#endif
|
|
|
|
# if defined(_MSC_VER)
|
|
# if _MSC_VER >= 700
|
|
#pragma warning(disable:4018) /* signed/unsigned mismatch */
|
|
#pragma warning(disable:4127) /* conditional expression is constant */
|
|
#pragma warning(disable:4131) /* old style declarator */
|
|
#pragma warning(disable:4309) /* initializing */
|
|
# endif
|
|
#include <conio.h>
|
|
# endif
|
|
|
|
#include "pcvideo.h"
|
|
#include "tile.h"
|
|
#include "pctiles.h"
|
|
|
|
STATIC_VAR FILE *tilefile;
|
|
STATIC_VAR FILE *tilefile_O;
|
|
extern short glyph2tile[]; /* in tile.c (made from tilemap.c) */
|
|
|
|
#ifdef TILES_IN_RAM
|
|
struct planar_cell_struct *ramtiles;
|
|
struct overview_planar_cell_struct *oramtiles;
|
|
boolean tiles_in_ram = FALSE;
|
|
boolean otiles_in_ram = FALSE;
|
|
extern int total_tiles_used; /* tile.c */
|
|
#endif
|
|
|
|
# ifdef OVLB
|
|
|
|
/*
|
|
* Read the header/palette information at the start of the
|
|
* NetHack.tib file.
|
|
*
|
|
* There is 1024 bytes (1K) of header information
|
|
* at the start of the file, including a palette.
|
|
*
|
|
*/
|
|
int ReadTileFileHeader(tibhdr, filestyle)
|
|
struct tibhdr_struct *tibhdr;
|
|
boolean filestyle;
|
|
{
|
|
FILE *x;
|
|
x = filestyle ? tilefile_O : tilefile;
|
|
if (fseek(x,0L,SEEK_SET)) {
|
|
return 1;
|
|
} else {
|
|
fread(tibhdr, sizeof(struct tibhdr_struct), 1, x);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Open the requested tile file.
|
|
*
|
|
* NetHack1.tib file is a series of
|
|
* 'struct planar_tile_struct' structures, one for each
|
|
* glyph tile.
|
|
*
|
|
* NetHack2.tib file is a series of
|
|
* char arrays [TILE_Y][TILE_X] in dimensions, one for each
|
|
* glyph tile.
|
|
*
|
|
* There is 1024 bytes (1K) of header information
|
|
* at the start of each .tib file. The first glyph tile starts at
|
|
* location 1024.
|
|
*
|
|
*/
|
|
int
|
|
OpenTileFile(tilefilename, filestyle)
|
|
char *tilefilename;
|
|
boolean filestyle;
|
|
{
|
|
#ifdef TILES_IN_RAM
|
|
int k;
|
|
#endif
|
|
if (filestyle) {
|
|
tilefile_O = fopen(tilefilename,"rb");
|
|
if (tilefile_O == (FILE *)0) return 1;
|
|
} else {
|
|
tilefile = fopen(tilefilename,"rb");
|
|
if (tilefile == (FILE *)0) return 1;
|
|
}
|
|
#ifdef TILES_IN_RAM
|
|
if (iflags.preload_tiles) {
|
|
if (filestyle) {
|
|
struct overview_planar_cell_struct *gp;
|
|
long ram_needed = sizeof(struct overview_planar_cell_struct) *
|
|
total_tiles_used;
|
|
if (fseek(tilefile_O,(long)TIBHEADER_SIZE, SEEK_SET)) { /*failure*/
|
|
}
|
|
oramtiles = (struct overview_planar_cell_struct *)alloc(ram_needed);
|
|
/* Todo: fall back to file method here if alloc failed */
|
|
gp = oramtiles;
|
|
for(k=0; k < total_tiles_used; ++k) {
|
|
fread(gp, sizeof(struct overview_planar_cell_struct),
|
|
1, tilefile_O);
|
|
++gp;
|
|
}
|
|
#ifdef DEBUG_RAMTILES
|
|
pline("%d overview tiles read into ram.", k);
|
|
mark_synch();
|
|
#endif
|
|
otiles_in_ram = TRUE;
|
|
} else {
|
|
struct planar_cell_struct *gp;
|
|
long ram_needed = sizeof(struct planar_cell_struct) *
|
|
total_tiles_used;
|
|
if (fseek(tilefile,(long)TIBHEADER_SIZE, SEEK_SET)) { /*failure*/
|
|
}
|
|
ramtiles = (struct planar_cell_struct *)alloc(ram_needed);
|
|
/* Todo: fall back to file method here if alloc failed */
|
|
gp = ramtiles;
|
|
for(k=0; k < total_tiles_used; ++k) {
|
|
fread(gp, sizeof(struct planar_cell_struct),
|
|
1, tilefile);
|
|
++gp;
|
|
}
|
|
#ifdef DEBUG_RAMTILES
|
|
pline("%d tiles read into ram.", k);
|
|
mark_synch();
|
|
#endif
|
|
tiles_in_ram = TRUE;
|
|
}
|
|
}
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
CloseTileFile(filestyle)
|
|
boolean filestyle;
|
|
{
|
|
fclose(filestyle ? tilefile_O : tilefile);
|
|
#ifdef TILES_IN_RAM
|
|
if (!filestyle && tiles_in_ram) {
|
|
if (ramtiles) free((genericptr_t) ramtiles);
|
|
tiles_in_ram = FALSE;
|
|
} else if (filestyle && otiles_in_ram) {
|
|
if (oramtiles) free((genericptr_t) oramtiles);
|
|
otiles_in_ram = FALSE;
|
|
}
|
|
#endif
|
|
}
|
|
# endif /* OVLB */
|
|
|
|
# ifdef OVL0
|
|
|
|
struct planar_cell_struct plancell;
|
|
struct overview_planar_cell_struct oplancell;
|
|
|
|
/* This routine retrieves the requested NetHack glyph tile
|
|
* from the planar style binary .tib file.
|
|
* This is currently done 'on demand', so if the player
|
|
* is running without a disk cache (ie. smartdrv) operating,
|
|
* things can really be slowed down. We don't have any
|
|
* base memory under MSDOS, in which to store the pictures.
|
|
*
|
|
* Todo: Investigate the possibility of loading the glyph
|
|
* tiles into extended or expanded memory using
|
|
* the MSC virtual memory routines.
|
|
*
|
|
* Under an environment like djgpp, it should be possible to
|
|
* read the entire set of glyph tiles into a large
|
|
* array of 'struct planar_cell_struct' structures at
|
|
* game initialization time, and recall them from the array
|
|
* as needed. That should speed things up (at the cost of
|
|
* increasing the memory requirement - can't have everything).
|
|
*
|
|
*/
|
|
# ifdef PLANAR_FILE
|
|
int ReadPlanarTileFile(tilenum,gp)
|
|
int tilenum;
|
|
struct planar_cell_struct **gp;
|
|
{
|
|
long fpos;
|
|
|
|
#ifdef TILES_IN_RAM
|
|
if (tiles_in_ram) {
|
|
*gp = ramtiles + tilenum;
|
|
return 0;
|
|
}
|
|
#endif
|
|
fpos = ((long)(tilenum) * (long)sizeof(struct planar_cell_struct)) +
|
|
(long)TIBHEADER_SIZE;
|
|
if (fseek(tilefile,fpos,SEEK_SET)) {
|
|
return 1;
|
|
} else {
|
|
fread(&plancell, sizeof(struct planar_cell_struct), 1, tilefile);
|
|
}
|
|
*gp = &plancell;
|
|
return 0;
|
|
}
|
|
int ReadPlanarTileFile_O(tilenum,gp)
|
|
int tilenum;
|
|
struct overview_planar_cell_struct **gp;
|
|
{
|
|
long fpos;
|
|
|
|
#ifdef TILES_IN_RAM
|
|
if (otiles_in_ram) {
|
|
*gp = oramtiles + tilenum;
|
|
return 0;
|
|
}
|
|
#endif
|
|
fpos = ((long)(tilenum) *
|
|
(long)sizeof(struct overview_planar_cell_struct)) +
|
|
(long)TIBHEADER_SIZE;
|
|
if (fseek(tilefile_O,fpos,SEEK_SET)) {
|
|
return 1;
|
|
} else {
|
|
fread(&oplancell, sizeof(struct overview_planar_cell_struct),
|
|
1, tilefile_O);
|
|
}
|
|
*gp = &oplancell;
|
|
return 0;
|
|
}
|
|
# endif
|
|
|
|
# ifdef PACKED_FILE
|
|
int ReadPackedTileFile(tilenum,pta)
|
|
int tilenum;
|
|
char (*pta)[TILE_X];
|
|
{
|
|
long fpos;
|
|
|
|
fpos = ((long)(tilenum) * (long)(TILE_Y * TILE_X) +
|
|
(long)TIBHEADER_SIZE;
|
|
if (fseek(tilefile,fpos,SEEK_SET)) {
|
|
return 1;
|
|
} else {
|
|
fread(pta, (TILE_Y * TILE_X), 1, tilefile);
|
|
}
|
|
return 0;
|
|
}
|
|
# endif
|
|
# endif /* OVL0 */
|
|
#endif /* USE_TILES */
|
|
|
|
/* pctiles.c */
|