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nethack/win/share/tile2bmp.c
PatR ba8076b142 static ananlyzer issue for alloc.c 
Verifying that strlen(string) isn't too long, then allocating and
copying strlen(string)+1 draws a complaint about strcpy() overflowing
its output buffer.

Not an issue for regular play, but could matter for config file and
sysconf manipulation.
2025-01-18 18:04:09 -08:00

398 lines
11 KiB
C
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/* NetHack 3.7 tile2bmp.c $NHDT-Date: 1737281026 2025/01/19 02:03:46 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.51 $ */
/* Copyright (c) NetHack PC Development Team 1995 */
/* NetHack may be freely redistributed. See license for details. */
/*
* Edit History:
*
* Initial Creation M.Allison 1994/01/11
* 256 colour bmp and statue support M.Allison 2015/04/19
*
*/
#ifndef __GNUC__
#include "win32api.h"
#endif
#include "config.h"
#include "hacklib.h"
#include "tile.h"
extern void monst_globals_init(void);
extern void objects_globals_init(void);
static int examine_tilefiles(void);
static int set_tilefile_path(const char *, const char *, char *, size_t);
#if defined(_MSC_VER) && defined(_WIN64)
#define UNALIGNED_POINTER __unaligned
#else
#define UNALIGNED_POINTER
#endif
#define COLORS_IN_USE 256
#define BITCOUNT 8
/* GCC fix by Paolo Bonzini 1999/03/28 */
#ifdef __GNUC__
#define PACK __attribute__((packed))
#else
#define PACK
#endif
static short
leshort(short x)
{
#ifdef __BIG_ENDIAN__
return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
#else
return x;
#endif
}
static int32_t
lelong(int32_t x)
{
#ifdef __BIG_ENDIAN__
return ((x & 0xff) << 24) | ((x & 0xff00) << 8) | ((x >> 8) & 0xff00)
| ((x >> 24) & 0xff);
#else
return x;
#endif
}
#ifdef __GNUC__
typedef struct tagBMIH {
uint32_t biSize;
int32_t biWidth;
int32_t biHeight;
uint16_t biPlanes;
uint16_t biBitCount;
uint32_t biCompression;
uint32_t biSizeImage;
int32_t biXPelsPerMeter;
int32_t biYPelsPerMeter;
uint32_t biClrUsed;
uint32_t biClrImportant;
} PACK BITMAPINFOHEADER;
typedef struct tagBMFH {
uint16_t bfType;
uint32_t bfSize;
uint16_t bfReserved1;
uint16_t bfReserved2;
uint32_t bfOffBits;
} PACK BITMAPFILEHEADER;
typedef struct tagRGBQ {
uint8_t rgbBlue;
uint8_t rgbGreen;
uint8_t rgbRed;
uint8_t rgbReserved;
} PACK RGBQUAD;
#define BI_RGB 0L
#define BI_RLE8 1L
#define BI_RLE4 2L
#define BI_BITFIELDS 3L
#endif /* __GNUC__ */
#define RGBQUAD_COUNT 256
#pragma pack(1)
struct tagBMP {
BITMAPFILEHEADER bmfh;
BITMAPINFOHEADER bmih;
RGBQUAD bmaColors[RGBQUAD_COUNT];
uchar packtile; /* start */
} PACK bmp, *newbmp;
#pragma pack()
FILE *tibfile2;
pixel tilepixels[TILE_Y][TILE_X];
static void build_bmfh(BITMAPFILEHEADER *);
static void build_bmih(UNALIGNED_POINTER BITMAPINFOHEADER *);
static void build_bmptile(pixel(*) [TILE_X]);
#define TILESETS 1
static const char *const relative_tiledir = "../win/share/";
/* monsters must be first because main uses it twice */
const char *const tilefilenames[TILESETS][3] = {
{"monsters.txt", "objects.txt", "other.txt"},
#if 0
{"mon32.txt", "obj32.txt", "oth32.txt"},
{"mon64.txt", "obj64.txt", "oth64.txt"},
#endif
};
int tilecnt[SIZE(tilefilenames[0])];
int tilefileset = 0;
int tiles_counted;
int max_x, max_y;
int magictileno = 0, bmpsize;
int num_colors = 0;
int max_tiles_in_row = 40;
int tiles_in_row;
int filenum;
int initflag;
int pass;
int yoffset, xoffset;
char bmpname[128];
FILE *fp;
DISABLE_WARNING_UNREACHABLE_CODE
int
main(int argc, char *argv[])
{
int i, j, number_of_rows, number_in_final_row;
uchar *c;
char tilefile_full_path[256] = { 0 };
if (argc != 2) {
Fprintf(stderr, "usage: %s outfile.bmp\n", argv[0]);
exit(EXIT_FAILURE);
} else if (argv[1] == 0 || strlen(argv[1]) >= sizeof bmpname - 1) {
Fprintf(stderr, "invalid output bmp file name %s, aborting.\n",
argv[0]);
exit(EXIT_FAILURE);
} else {
strcpy(bmpname, argv[1]);
}
objects_globals_init();
monst_globals_init();
/* tilefileset = (TILE_X == 64) ? 2 : (TILE_X == 32) ? 1 : 0; */
tilefileset = 0;
if (!examine_tilefiles()) {
Fprintf(stderr, "unable to open all of the tile files, aborting.\n");
exit(EXIT_FAILURE);
}
for (i = 0; i < SIZE(tilecnt); ++i)
magictileno += tilecnt[i];
/* count monsters twice for grayscale variation */
magictileno += tilecnt[0];
max_x = TILE_X * max_tiles_in_row;
max_y = ((TILE_Y * magictileno) / max_tiles_in_row) + TILE_Y;
bmpsize = (sizeof bmp - sizeof bmp.packtile)
+ (max_y * (max_x * sizeof(uchar)));
newbmp = malloc(bmpsize);
if (!newbmp) {
printf("memory allocation failure, %d %d, aborting.\n",
bmpsize, magictileno);
exit(EXIT_FAILURE);
}
tiles_counted = 0;
xoffset = yoffset = 0;
initflag = 0;
filenum = 0;
pass = 0;
fp = fopen(bmpname, "wb");
if (!fp) {
printf("Error creating tile file %s, aborting.\n", bmpname);
exit(EXIT_FAILURE);
}
while (pass < 4) {
filenum = pass % SIZE(tilefilenames[tilefileset]);
if (!set_tilefile_path(relative_tiledir,
tilefilenames[tilefileset][filenum],
tilefile_full_path, sizeof tilefile_full_path)) {
Fprintf(stderr, "tile2bmp path issue %s %s %d\n",
relative_tiledir, tilefilenames[tilefileset][filenum],
(int) sizeof tilefile_full_path);
exit(EXIT_FAILURE);
}
if (!fopen_text_file(tilefile_full_path, RDTMODE)) {
Fprintf(stderr, "usage: tile2bmp (from the util directory)\n");
exit(EXIT_FAILURE);
}
num_colors = colorsinmap;
if (num_colors > 62) {
Fprintf(stderr, "too many colors (%d), aborting.\n", num_colors);
exit(EXIT_FAILURE);
}
if (!initflag) {
UNALIGNED_POINTER BITMAPINFOHEADER *bmih;
build_bmfh(&bmp.bmfh);
bmih = &bmp.bmih;
build_bmih(bmih);
for (i = 0; i < num_colors; i++) {
bmp.bmaColors[i].rgbRed = ColorMap[CM_RED][i];
bmp.bmaColors[i].rgbGreen = ColorMap[CM_GREEN][i];
bmp.bmaColors[i].rgbBlue = ColorMap[CM_BLUE][i];
bmp.bmaColors[i].rgbReserved = 0;
}
*newbmp = bmp;
for (i = 0; i < max_y; ++i)
for (j = 0; j < max_x; ++j) {
c = &newbmp->packtile + ((i * max_x) + j);
*c = (uchar) 0;
}
initflag = 1;
}
set_grayscale(pass == 3);
/* printf("Colormap initialized\n"); */
while (read_text_tile(tilepixels)) {
if (tiles_counted >= magictileno) {
Fprintf(stderr, "tile2bmp: more than %d tiles!\n",
magictileno);
exit(EXIT_FAILURE);
}
build_bmptile(tilepixels);
tiles_counted++;
xoffset += TILE_X;
if (xoffset >= max_x) {
yoffset += TILE_Y;
xoffset = 0;
}
}
(void) fclose_text_file();
++pass;
}
fwrite(newbmp, bmpsize, 1, fp);
fclose(fp);
number_of_rows = tiles_counted / max_tiles_in_row;
number_in_final_row = tiles_counted % max_tiles_in_row;
Fprintf(stderr, "Total of %d tiles written to %s, "
"%d full rows of %d tiles",
tiles_counted, bmpname,
number_of_rows, max_tiles_in_row);
if (number_in_final_row != 0) {
Fprintf(stderr, ", final row %d has %d tile%s",
number_of_rows + 1, number_in_final_row,
number_in_final_row > 1 ? "s" : "");
}
(void) fputs(".\n\n", stderr);
free((genericptr_t) newbmp);
exit(EXIT_SUCCESS);
/*NOTREACHED*/
return 0;
}
RESTORE_WARNINGS
static void
build_bmfh(BITMAPFILEHEADER* pbmfh)
{
pbmfh->bfType = leshort(0x4D42);
pbmfh->bfSize = lelong(bmpsize);
pbmfh->bfReserved1 = (uint32_t) 0;
pbmfh->bfReserved2 = (uint32_t) 0;
pbmfh->bfOffBits = lelong(sizeof bmp.bmfh + sizeof bmp.bmih
+ (RGBQUAD_COUNT * sizeof(RGBQUAD)));
}
static void
build_bmih(UNALIGNED_POINTER BITMAPINFOHEADER* pbmih)
{
uint16_t cClrBits;
int w, h;
pbmih->biSize = lelong(sizeof(bmp.bmih));
pbmih->biWidth = lelong(w = max_x);
pbmih->biHeight = lelong(h = max_y);
pbmih->biPlanes = leshort(1);
pbmih->biBitCount = leshort(8);
cClrBits = 8;
if (cClrBits == 1)
cClrBits = 1;
else if (cClrBits <= 4)
cClrBits = 4;
else if (cClrBits <= 8)
cClrBits = 8;
else if (cClrBits <= 16)
cClrBits = 16;
else if (cClrBits <= 24)
cClrBits = 24;
else
cClrBits = 32;
pbmih->biCompression = lelong(BI_RGB);
pbmih->biXPelsPerMeter = lelong(0);
pbmih->biYPelsPerMeter = lelong(0);
#if (TILE_X == 32)
if (cClrBits < 24)
pbmih->biClrUsed = lelong(1 << cClrBits);
#else
pbmih->biClrUsed = lelong(RGBQUAD_COUNT);
#endif
pbmih->biSizeImage = lelong(((w * cClrBits + 31) & ~31) / 8 * h);
pbmih->biClrImportant = (uint32_t) 0;
}
static void
build_bmptile(pixel(*pixels)[TILE_X])
{
int cur_x, cur_y, cur_color, apply_color;
int x, y;
uchar *c;
for (cur_y = 0; cur_y < TILE_Y; cur_y++) {
for (cur_x = 0; cur_x < TILE_X; cur_x++) {
for (cur_color = 0; cur_color < num_colors; cur_color++) {
if (ColorMap[CM_RED][cur_color] == pixels[cur_y][cur_x].r
&& ColorMap[CM_GREEN][cur_color] == pixels[cur_y][cur_x].g
&& ColorMap[CM_BLUE][cur_color] == pixels[cur_y][cur_x].b)
break;
}
if (cur_color >= num_colors)
Fprintf(stderr, "color not in colormap! (tile #%d)\n",
tiles_counted);
y = (max_y - 1) - (cur_y + yoffset);
apply_color = cur_color;
x = cur_x + xoffset;
c = &newbmp->packtile + ((y * max_x) + x);
*c = (uchar) apply_color;
}
}
}
static int
set_tilefile_path(const char *fdir, const char *fname, char *buf, size_t sz)
{
size_t consuming = 0;
*buf = '\0';
consuming = strlen(fdir) + strlen(fname) + 1;
if (consuming > sz)
return 0;
Strcpy(buf, fdir);
Strcat(buf, fname);
return 1;
}
static int
examine_tilefiles(void)
{
FILE *fp2;
int i, tiles_in_file;
char tilefile_full_path[256];
for (i = 0; i < SIZE(tilefilenames[0]); ++i) {
tiles_in_file = 0;
if (!set_tilefile_path(relative_tiledir,
tilefilenames[tilefileset][i],
tilefile_full_path,
sizeof tilefile_full_path)) {
Fprintf(stderr, "tile2bmp path issue %s/%s %d\n",
relative_tiledir, tilefilenames[tilefileset][i],
(int) sizeof tilefile_full_path);
return 0;
}
fp2 = fopen(tilefile_full_path, "r");
if (fp2) {
char line[256];
while (fgets(line, sizeof line, fp2)) {
if (!strncmp(line, "# tile ", 7))
tiles_in_file++;
}
(void) fclose(fp2);
tilecnt[i] = tiles_in_file;
}
}
return 1;
}
/*tile2bmp.c*/
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