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quakeforge/tools/bsp2img/bsp2img.c
Bill Currie 790f62a209 [image] Make WritePNG take settings from tex_t 
This means that a tex_t object is passed in instead of just raw bytes
and width and height, but it means the texture can specify whether it's
flipped or uses BGR instead of RGB. This fixes the upside down
screenshots for vulkan.
2022-04-01 01:01:53 +09:00

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/*
bsp2bp - converts Quake I BSP's to a bitmap (map!) of the level
Copyright (C) 1999 Matthew Wong <mkyw@iname.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <errno.h>
#include <string.h>
#include <math.h>
#include <limits.h>
#include "QF/bspfile.h"
#include "QF/cmd.h"
#include "QF/cvar.h"
#include "QF/image.h"
#include "QF/mathlib.h"
#include "QF/pcx.h"
#include "QF/png.h"
#include "QF/quakefs.h"
#include "QF/quakeio.h"
#include "QF/sys.h"
#include "QF/zone.h"
#include "compat.h"
#define PROGNAME "bsp2img"
#define V_MAJOR 0
#define V_MINOR 0
#define V_REV 12
#define Z_PAD_HACK 16
#define MAX_REF_FACES 4
#define MEMSIZE (12 * 1024 * 1024)
#define X point[0]
#define Y point[1]
#define Z point[2]
#define SUB(a,b,c) ((c).X = (a).X - (b).X, \
(c).Y = (a).Y - (b).Y, \
(c).Z = (a).Z - (b).Z)
#define DOT(a,b) ((a).X * (b).X + (a).Y * (b).Y + (a).Z * (b).Z)
#define CROSS(a,b,c) ((c).X = (a).Y * (b).Z - (a).Z * (b).Y, \
(c).Y = (a).Z * (b).X - (a).X * (b).Z, \
(c).Z = (a).X * (b).Y - (a).Y * (b).X)
/*
Thanks fly to Id for a hackable game! :)
*/
/* MW */
typedef struct edge_extra_t {
uint32_t num_face_ref;
uint32_t ref_faces[MAX_REF_FACES]; // which faces are referenced
dvertex_t ref_faces_normal[MAX_REF_FACES]; // normal of referenced
// faces
int ref_faces_area[MAX_REF_FACES]; // area of the referenced faces
} edge_extra_t;
typedef unsigned char eightbit;
typedef struct options_t {
char *bspf_name;
char *outf_name;
int outf_type;
float scaledown;
float z_pad;
float image_pad;
int z_direction;
int camera_axis; // 1 - X, 2 - Y, 3 - Z, negatives will
// come from negative side of axis
int edgeremove;
float flat_threshold;
int area_threshold;
int linelen_threshold;
int negative_image;
int write_raw;
int write_nocomp;
} options_t;
typedef struct {
eightbit *image;
long width;
long height;
} image_t;
struct options_t options;
static void
show_help (void)
{
printf ("BSP->bitmap, version %d.%d.%d\n\n", V_MAJOR, V_MINOR, V_REV);
printf ("Usage:\n");
printf (" %s [options] <bspfile> <outfile>\n\n", PROGNAME);
printf ("Options:\n");
printf (" -s<scaledown> default: 4, ie 1/4 scale\n");
printf (" -z<z_scaling> default: 0 for flat map, >0 for iso 3d, -1 for auto\n");
printf (" -p<padding> default: 16-pixel border around final image\n");
printf (" -d<direction> iso 3d direction: 7 0 1\n");
printf (" \\ | /\n");
printf (" 6--+--2\n");
printf (" / | \\\n");
printf (" 5 4 3\n");
printf (" default: 7\n");
printf (" -c<camera_axis> default: +Z (+/- X/Y/Z axis)\n");
printf (" -t<flatness> threshold of dot product for edge removal;\n");
printf (" default is 0.90\n");
printf (" -e disable extraneous edges removal\n");
printf (" -a<area> minimum area for a polygon to be drawn\n");
printf (" default is 0\n");
printf (" -l<length> minimum length for an edge to be drawn\n");
printf (" default is 0\n");
printf (" -n negative image (black on white\n");
printf (" -r write raw data, rather than bmp file\n");
return;
}
static void
plotpoint (image_t *image, long xco, long yco, unsigned int color)
{
unsigned int bigcol = 0;
if (image->width <= 0 || image->height <= 0
|| xco < 0 || xco >= image->width
|| yco < 0 || yco >= image->height)
return;
bigcol = (unsigned int) image->image[yco * image->width + xco];
bigcol += color;
bigcol = min (bigcol, 255);
image->image[yco * image->width + xco] = (eightbit) bigcol;
return;
}
static void
bresline (image_t * image, long x1, long y1, long x2, long y2,
unsigned int color)
{
long x = 0, y = 0;
long deltax = 0, deltay = 0;
long xchange = 0, ychange = 0;
long error, length, i;
x = x1;
y = y1;
deltax = x2 - x1;
deltay = y2 - y1;
if (deltax < 0) {
xchange = -1;
deltax = -deltax;
} else {
xchange = 1;
}
if (deltay < 0) {
ychange = -1;
deltay = -deltay;
} else {
ychange = 1;
}
/* Main seq */
error = 0;
i = 0;
if (deltax < deltay) {
length = deltay + 1;
while (i < length) {
y = y + ychange;
error = error + deltax;
if (error > deltay) {
x = x + xchange;
error = error - deltay;
}
i++;
plotpoint (image, x, y, color);
}
} else {
length = deltax + 1;
while (i < length) {
x = x + xchange;
error = error + deltay;
if (error > deltax) {
y = y + ychange;
error = error - deltax;
}
i++;
plotpoint (image, x, y, color);
}
}
}
static void
def_options (struct options_t *opt)
{
static struct options_t locopt;
locopt.bspf_name = NULL;
locopt.outf_name = NULL;
locopt.outf_type = 0;
locopt.scaledown = 4.0;
locopt.image_pad = 16.0;
locopt.z_pad = 0.0;
locopt.z_direction = 1;
locopt.camera_axis = 3; // default is from +Z
locopt.edgeremove = 1;
locopt.flat_threshold = 0.90;
locopt.area_threshold = 0;
locopt.linelen_threshold = 0;
locopt.negative_image = 0;
locopt.write_raw = 0;
locopt.write_nocomp = 1;
memcpy (opt, &locopt, sizeof (struct options_t));
return;
}
static void
get_options (struct options_t *opt, int argc, char *argv[])
{
static struct options_t locopt;
int i = 0;
char *arg;
long lnum = 0;
float fnum = 0.0;
char pm = '+', axis = 'Z';
/* Copy curr options */
memcpy (&locopt, opt, sizeof (struct options_t));
/* Go through command line */
for (i = 1; i < argc; i++) {
arg = argv[i];
if (arg[0] == '-') {
/* Okay, dash-something */
switch (arg[1]) {
case 's':
if (sscanf (&arg[2], "%ld", &lnum) == 1)
if (lnum > 0)
locopt.scaledown = (float) lnum;
break;
case 'z':
if (sscanf (&arg[2], "%ld", &lnum) == 1)
if (lnum >= -1)
locopt.z_pad = (float) lnum;
break;
case 'p':
if (sscanf (&arg[2], "%ld", &lnum) == 1)
if (lnum >= 0)
locopt.image_pad = (float) lnum;
break;
case 'd':
if (sscanf (&arg[2], "%ld", &lnum) == 1)
if (lnum >= 0 && lnum <= 7)
locopt.z_direction = (int) lnum;
break;
case 'c':
if (strlen (&arg[2]) == 2) {
pm = arg[2];
axis = arg[3];
printf ("-c%c%c\n", pm, axis);
switch (axis) {
case 'x':
case 'X':
locopt.camera_axis = 1;
break;
case 'y':
case 'Y':
locopt.camera_axis = 2;
break;
case 'z':
case 'Z':
locopt.camera_axis = 3;
break;
default:
printf ("Must specify a valid axis.\n");
show_help ();
exit (1);
break;
}
switch (pm) {
case '+':
break;
case '-':
locopt.camera_axis = -locopt.camera_axis;
break;
default:
printf ("Must specify +/-\n");
show_help ();
exit (1);
break;
}
} else {
printf ("Unknown option: -%s\n", &arg[1]);
show_help ();
exit (1);
}
break;
case 't':
if (sscanf (&arg[2], "%f", &fnum) == 1)
if (fnum >= 0.0 && fnum <= 1.0)
locopt.flat_threshold = (float) fnum;
break;
case 'e':
locopt.edgeremove = 0;
break;
case 'n':
locopt.negative_image = 1;
break;
case 'a':
if (sscanf (&arg[2], "%ld", &lnum) == 1)
if (lnum >= 0)
locopt.area_threshold = (int) lnum;
break;
case 'l':
if (sscanf (&arg[2], "%ld", &lnum) == 1)
if (lnum >= 0)
locopt.linelen_threshold = (int) lnum;
break;
case 'r':
locopt.write_raw = 1;
break;
case 'u':
locopt.write_nocomp = 1;
break;
default:
printf ("Unknown option: -%s\n", &arg[1]);
show_help ();
exit (1);
break;
} /* switch */
} else {
if (locopt.bspf_name == NULL) {
locopt.bspf_name = arg;
} else if (locopt.outf_name == NULL) {
const char *ext;
locopt.outf_name = arg;
ext = QFS_FileExtension (locopt.outf_name);
if (strcmp (ext, ".pcx") == 0)
locopt.outf_type = 0;
else if (strcmp (ext, ".png") == 0)
locopt.outf_type = 1;
else {
printf ("Unknown output format: %s\n", ext);
exit (1);
}
} else {
printf ("Unknown option: %s\n", arg);
show_help ();
exit (1);
}
} /* if */
} /* for */
memcpy (opt, &locopt, sizeof (struct options_t));
return;
}
static void
show_options (struct options_t *opt)
{
char dirstr[80];
printf ("Options:\n");
printf (" Scale down by: %.0f\n", opt->scaledown);
printf (" Z scale: %.0f\n", opt->z_pad);
printf (" Border: %.0f\n", opt->image_pad);
/* Zoffset calculations */
switch (opt->z_direction) {
case 0:
sprintf (dirstr, "up");
break;
case 1:
sprintf (dirstr, "up & right");
break;
case 2:
sprintf (dirstr, "right");
break;
case 3:
sprintf (dirstr, "down & right");
break;
case 4:
sprintf (dirstr, "down");
break;
case 5:
sprintf (dirstr, "down & left");
break;
case 6:
sprintf (dirstr, "left");
break;
case 7:
sprintf (dirstr, "up & left");
break;
default:
sprintf (dirstr, "unknown!");
break;
}
printf (" Z direction: %d [%s]\n", opt->z_direction, dirstr);
if (opt->z_pad == 0) {
printf (" Warning: direction option has no effect with Z scale set to 0.\n");
}
/* Camera axis */
switch (opt->camera_axis) {
case 1:
sprintf (dirstr, "+X");
break;
case -1:
sprintf (dirstr, "-X");
break;
case 2:
sprintf (dirstr, "+Y");
break;
case -2:
sprintf (dirstr, "-Y");
break;
case 3:
sprintf (dirstr, "+Z");
break;
case -3:
sprintf (dirstr, "-Z");
break;
default:
sprintf (dirstr, "unknown!");
break;
}
printf (" Camera axis: %s\n", dirstr);
printf (" Remove extraneous edges: %s\n",
(opt->edgeremove == 1) ? "yes" : "no");
printf (" Edge removal dot product theshold: %f\n", opt->flat_threshold);
printf (" Minimum polygon area threshold (approximate): %d\n",
opt->area_threshold);
printf (" Minimum line length threshold: %d\n", opt->linelen_threshold);
printf (" Creating %s image.\n",
(opt->negative_image == 1) ? "negative" : "positive");
printf ("\n");
printf (" Input (bsp) file: %s\n", opt->bspf_name);
if (opt->write_raw)
printf (" Output (raw) file: %s\n\n", opt->outf_name);
else
printf (" Output (%s bmp) file: %s\n\n",
opt->write_nocomp ? "uncompressed" : "RLE compressed",
opt->outf_name);
return;
}
static image_t *
create_image (long width, long height)
{
long size;
image_t *image;
image = malloc (sizeof (image_t));
image->width = width;
image->height = height;
size = sizeof (eightbit) * width * height;
if (!(image->image = malloc (size))) {
fprintf (stderr, "Error allocating image buffer %ldx%ld.\n",
width, height);
exit (2);
}
printf ("Allocated buffer %ldx%ld for image.\n", width, height);
memset (image->image, 0, size);
return image;
}
static image_t *
render_map (bsp_t *bsp)
{
uint32_t j = 0, k = 0, x = 0;
dvertex_t *vertexlist, *vert1, *vert2;
dedge_t *edgelist;
dface_t *facelist;
int *ledges;
/* edge removal stuff */
struct edge_extra_t *edge_extra = NULL;
dvertex_t v0, v1, vect;
int area = 0, usearea;
float minX = 0.0, maxX = 0.0, minY = 0.0, maxY = 0.0, minZ = 0.0;
float maxZ = 0.0, midZ = 0.0, tempf = 0.0;
long Zoffset0 = 0, Zoffset1 = 0;
long Z_Xdir = 1, Z_Ydir = -1;
image_t *image;
int drawcol;
vertexlist = bsp->vertexes;
edgelist = bsp->edges;
facelist = bsp->faces;
ledges = bsp->surfedges;
/* Precalc stuff if we're removing edges - - - - - - - - - - - */
if (options.edgeremove) {
printf ("Precalc edge removal stuff...\n");
edge_extra = malloc (sizeof (struct edge_extra_t) * bsp->numedges);
if (edge_extra == NULL) {
fprintf (stderr, "Error allocating %ld bytes for extra edge info.",
(long) (sizeof (struct edge_extra_t) * bsp->numedges));
exit (2);
}
/* initialize the array */
for (unsigned i = 0; i < bsp->numedges; i++) {
edge_extra[i].num_face_ref = 0;
for (int j = 0; j < MAX_REF_FACES; j++) {
edge_extra[i].ref_faces[j] = -1;
}
}
for (unsigned i = 0; i < bsp->numfaces; i++) {
/* calculate the normal (cross product) */
/* starting edge: edgelist[ledges[facelist[i].firstedge]] */
/* number of edges: facelist[i].numedges; */
/* quick hack - just take the first 2 edges */
j = facelist[i].firstedge;
k = j;
vect.X = 0.0;
vect.Y = 0.0;
vect.Z = 0.0;
while (vect.X == 0.0 && vect.Y == 0.0 && vect.Z == 0.0
&& k < (facelist[i].numedges + j)) {
dedge_t *e1, *e2;
/* If the first 2 are parallel edges, go with the next one */
k++;
e1 = &edgelist[abs (ledges[j])];
e2 = &edgelist[abs (ledges[k])];
//FIXME verify directions
if (ledges[j] > 0) {
SUB (vertexlist[e1->v[0]], vertexlist[e1->v[1]], v0);
SUB (vertexlist[e2->v[0]], vertexlist[e2->v[1]], v1);
} else {
/* negative index, therefore walk in reverse order */
SUB (vertexlist[e1->v[1]], vertexlist[e1->v[0]], v0);
SUB (vertexlist[e2->v[1]], vertexlist[e2->v[0]], v1);
}
/* cross product */
CROSS (v0, v1, vect);
/* Okay, it's not the REAL area, but i'm lazy, and since a lot
of mapmakers use rectangles anyways... */
area = sqrt (DOT (v0, v0)) * sqrt (DOT (v1, v1));
} /* while */
/* reduce cross product to a unit vector */
tempf = sqrt (DOT (vect, vect));
if (tempf > 0.0) {
vect.X = vect.X / tempf;
vect.Y = vect.Y / tempf;
vect.Z = vect.Z / tempf;
} else {
vect.X = 0.0;
vect.Y = 0.0;
vect.Z = 0.0;
}
/* Now go put ref in all edges... */
for (j = 0; j < facelist[i].numedges; j++) {
edge_extra_t *e;
k = j + facelist[i].firstedge;
e = &edge_extra[abs (ledges[k])];
x = e->num_face_ref;
if (e->num_face_ref < MAX_REF_FACES) {
x++;
e->num_face_ref = x;
e->ref_faces[x - 1] = i;
e->ref_faces_normal[x - 1].X = vect.X;
e->ref_faces_normal[x - 1].Y = vect.Y;
e->ref_faces_normal[x - 1].Z = vect.Z;
e->ref_faces_area[x - 1] = area;
}
} /* for */
}
}
/* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */
printf ("Collecting min/max\n");
/* Collect min and max */
for (unsigned i = 0; i < bsp->numvertexes; i++) {
/* Ugly hack - flip stuff around for different camera angles */
switch (options.camera_axis) {
case -1: /* -X -- (-y <--> +y, +x into screen,
-x out of screen; -z down, +z up) */
tempf = vertexlist[i].X;
vertexlist[i].X = vertexlist[i].Y;
vertexlist[i].Y = vertexlist[i].Z;
vertexlist[i].Z = -tempf;
break;
case 1: /* +X -- (+y <--> -y; -x into screen,
+x out of screen; -z down, +z up) */
tempf = vertexlist[i].X;
vertexlist[i].X = -vertexlist[i].Y;
vertexlist[i].Y = vertexlist[i].Z;
vertexlist[i].Z = tempf;
break;
case -2: /* -Y -- (+x <--> -x; -y out of screen,
+z up) */
vertexlist[i].X = -vertexlist[i].X;
tempf = vertexlist[i].Z;
vertexlist[i].Z = vertexlist[i].Y;
vertexlist[i].Y = tempf;
break;
case 2: /* +Y -- (-x <--> +x; +y out of screen,
+z up) */
tempf = vertexlist[i].Z;
vertexlist[i].Z = -vertexlist[i].Y;
vertexlist[i].Y = tempf;
break;
case -3: /* -Z -- negate X and Z (ie. 180 rotate
along Y axis) */
vertexlist[i].X = -vertexlist[i].X;
vertexlist[i].Z = -vertexlist[i].Z;
break;
case 3: /* +Z -- do nothing! */
default: /* do nothing! */
break;
}
/* flip Y for proper screen cords */
vertexlist[i].Y = -vertexlist[i].Y;
/* max and min */
if (i == 0) {
minX = vertexlist[i].X;
maxX = vertexlist[i].X;
minY = vertexlist[i].Y;
maxY = vertexlist[i].Y;
minZ = vertexlist[i].Z;
maxZ = vertexlist[i].Z;
} else {
minX = min (vertexlist[i].X, minX);
maxX = max (vertexlist[i].X, maxX);
minY = min (vertexlist[i].Y, minY);
maxY = max (vertexlist[i].Y, maxY);
minZ = min (vertexlist[i].Z, minZ);
maxZ = max (vertexlist[i].Z, maxZ);
}
}
if (options.z_pad == -1)
options.z_pad = (long) (maxZ - minZ) / (options.scaledown * Z_PAD_HACK);
midZ = (maxZ + minZ) / 2.0;
printf ("\n");
printf ("Bounds: X [%8.4f .. %8.4f] %8.4f\n", minX, maxX, (maxX - minX));
printf (" Y [%8.4f .. %8.4f] %8.4f\n", minY, maxY, (maxY - minY));
printf (" Z [%8.4f .. %8.4f] %8.4f - mid: %8.4f\n", minZ, maxZ,
(maxZ - minZ), midZ);
/* image array */
{
long width, height;
width = (maxX - minX + 1) / options.scaledown;
width += (options.image_pad + options.z_pad) * 2;
height = (maxY - minY + 1) / options.scaledown;
height += (options.image_pad + options.z_pad) * 2;
image = create_image (width, height);
}
/* Zoffset calculations */
switch (options.z_direction) {
case 0:
Z_Xdir = 0; /* up */
Z_Ydir = 1;
break;
default: /* unknown */
case 1: /* up & right */
Z_Xdir = 1;
Z_Ydir = -1;
break;
case 2: /* right */
Z_Xdir = 1;
Z_Ydir = 0;
break;
case 3: /* down & right */
Z_Xdir = 1;
Z_Ydir = 1;
break;
case 4: /* down */
Z_Xdir = 0;
Z_Ydir = 1;
break;
case 5: /* down & left */
Z_Xdir = -1;
Z_Ydir = 1;
break;
case 6: /* left */
Z_Xdir = -1;
Z_Ydir = 0;
break;
case 7: /* up & left */
Z_Xdir = -1;
Z_Ydir = -1;
break;
}
/* Plot edges on image */
fprintf (stderr, "Plotting edges...");
k = 0;
drawcol = (options.edgeremove) ? 64 : 32;
for (unsigned i = 0; i < bsp->numedges; i++) {
/* Do a check on this line ... see if we keep this line or not */
/* run through all referenced faces */
/* ICK ... do I want to check area of all faces? */
usearea = INT_MAX;
if (options.edgeremove) {
if (edge_extra[i].num_face_ref > 1) {
tempf = 1.0;
/* dot products of all referenced faces */
for (j = 0; j < edge_extra[i].num_face_ref - 1; j = j + 2) {
tempf =
tempf * (DOT (edge_extra[i].ref_faces_normal[j],
edge_extra[i].ref_faces_normal[j + 1]));
/* What is the smallest area this edge references? */
if (usearea > edge_extra[i].ref_faces_area[j])
usearea = edge_extra[i].ref_faces_area[j];
if (usearea > edge_extra[i].ref_faces_area[j + 1])
usearea = edge_extra[i].ref_faces_area[j + 1];
}
} else {
tempf = 0.0;
}
} else {
tempf = 0.0;
}
vert1 = &vertexlist[edgelist[i].v[0]];
vert2 = &vertexlist[edgelist[i].v[1]];
SUB (*vert1, *vert2, vect);
if (fabsf (tempf) < options.flat_threshold
&& usearea > options.area_threshold
&& sqrt (DOT (vect, vect)) > options.linelen_threshold) {
float offs0, offs1;
Zoffset0 = (options.z_pad * (vert1->Z - midZ) / (maxZ - minZ));
Zoffset1 = (options.z_pad * (vert2->Z - midZ) / (maxZ - minZ));
offs0 = options.image_pad + options.z_pad + (Zoffset0 * Z_Xdir);
offs1 = options.image_pad + options.z_pad + (Zoffset1 * Z_Ydir);
bresline (image, (vert1->X - minX) / options.scaledown + offs0,
(vert1->Y - minY) / options.scaledown + offs0,
(vert2->X - minX) / options.scaledown + offs1,
(vert2->Y - minY) / options.scaledown + offs1,
drawcol);
} else {
k++;
}
}
printf ("%zd edges plotted", bsp->numedges);
if (options.edgeremove) {
printf (" (%u edges removed)\n", k);
} else {
printf ("\n");
}
/* Little gradient */
for (unsigned i = 0; i <= 255; i++) {
// across from top left
plotpoint (image, i, 0, 255 - i);
// down from top left
plotpoint (image, 0, i, 255 - i);
// back from top right
plotpoint (image, image->width - i - 1, 0, 255 - i);
// down from top right
plotpoint (image, image->width - 1, i, 255 - i);
// back from bottom right
plotpoint (image, image->width - i - 1, image->height - 1, 255 - i);
// up from bottom right
plotpoint (image, image->width - 1, image->height - i - 1, 255 - i);
// across from bottom left
plotpoint (image, i, image->height - 1, 255 - i);
// up from bottom left
plotpoint (image, 0, image->height - i - 1, 255 - i);
}
/* Negate image if necessary */
if (options.negative_image) {
for (int i = 0; i < image->height; i++) {
for (int j = 0; j < image->width; j++) {
image->image[i * image->width + j] =
255 - image->image[i * image->width + j];
}
}
}
if (options.edgeremove) {
free (edge_extra);
}
return image;
}
static void
write_png (image_t *image)
{
byte *in, *out, b;
int size = image->width * image->height;
tex_t tex = {
.width = image->width,
.height = image->height,
.format = tex_rgb,
.loaded = 1,
.data = malloc (size * 3),
};
out = tex.data;
for (in = image->image; in - image->image < size; in++) {
b = *in;
*out++ = b;
*out++ = b;
*out++ = b;
}
QFile *file = Qopen (options.outf_name, "wb");
if (file) {
WritePNG (file, &tex);
Qclose (file);
}
free (tex.data);
}
static void
write_pcx (image_t *image)
{
pcx_t *pcx;
int pcx_len, i;
byte palette[768];
QFile *outfile;
outfile = Qopen (options.outf_name, "wb");
if (outfile == NULL) {
fprintf (stderr, "Error opening output file %s.\n", options.outf_name);
exit (1);
}
// quick and dirty greyscale palette
for (i = 0; i < 256; i++) {
palette[i * 3 + 0] = i;
palette[i * 3 + 1] = i;
palette[i * 3 + 2] = i;
}
Sys_Init ();
Memory_Init (Sys_Alloc (MEMSIZE), MEMSIZE);
pcx = EncodePCX (image->image, image->width, image->height,
image->width, palette, false, &pcx_len);
if (Qwrite (outfile, pcx, pcx_len) != pcx_len) {
fprintf (stderr, "Error writing to %s\n", options.outf_name);
exit (1);
}
Qclose (outfile);
}
int
main (int argc, char *argv[])
{
QFile *bspfile;
bsp_t *bsp;
image_t *image;
/* Enough args? */
if (argc < 3) {
show_help ();
return 1;
}
/* Setup options */
def_options (&options);
get_options (&options, argc, argv);
show_options (&options);
bspfile = Qopen (options.bspf_name, "rbz");
if (bspfile == NULL) {
fprintf (stderr, "Error opening bsp file %s.\n", options.bspf_name);
return 1;
}
bsp = LoadBSPFile (bspfile, Qfilesize (bspfile));
Qclose (bspfile);
image = render_map (bsp);
BSP_Free (bsp);
/* Write image */
switch (options.outf_type) {
case 0:
write_pcx (image);
break;
case 1:
write_png (image);
break;
}
printf ("File written to %s.\n", options.outf_name);
/* Close, done! */
free (image->image);
free (image);
return 0;
}
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