#include <gl.h>
#include <device.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <unistd.h>
#include <signal.h>
#include <sys/wait.h>
#include <sys/types.h>
#include "globals.h"
#include "util.h"
#include "lights.h"
#include "states.h"
#include "geom.h"
#include "init.h"
/* initial WINDOW parameters */
#define WIN_LEFT 100
#define WIN_WIDTH 500
#define WIN_BOTTOM 300
#define WIN_HEIGHT 500
/* sets up the menus and windows, initializes all of the
variables, globals variables, states of the event handler
and renderer, and sets up the viewing perspective.
also handles the arguements */
void Initialize(int argc, char *argv[])
{
int i;
Colorindex dummy = 0;
if (argc < 1)
{
fprintf(stderr, "USAGE: %s\n", argv[0]);
exit(-1);
}
init_event_state(&gevents);
init_render_state(&gstate);
gstate.scale_factor = 1.0;
gstate.shading = GOURAUD;
gstate.persp = 1;
gstate.aspect_on = 1;
gstate.zbuffer_on = 1;
gstate.alpha_on = 1;
gstate.lights_on = 1;
gstate.left = -1.0;
gstate.right = 1.0;
gstate.bottom = -1.0;
gstate.top = 1.0;
gstate.near = 0.01;
gstate.far = 100.0;
gstate.angle = 450.0;
gstate.twist = 0.0;
Point(gstate.cop, 0.0, 0.0, 5.0);
Point(gstate.dcop, 0.0, 0.0, 0.0);
Point(gstate.vrp, 0.0, 0.0, 0.0);
Point(gstate.dvrp, 0.0, 0.0, 0.0);
gstate.theta = get_theta(gstate.cop, gstate.vrp);
gstate.phi = get_phi(gstate.cop, gstate.vrp, gstate.theta);
gstate.cv_rad = distance(gstate.cop, gstate.vrp);
gstate.sensitivity = 1.0;
gstate.backface_on = 1;
gstate.concave_on = 1;
gstate.twoside = 0.0;
gstate.eye_sep = 0.25;
image_file = "TILES/tex0.rgb";
gstate.axis = NO_AXIS;
cursor_type = finger;
gstate.timeout = 5;
gstate.auto_rotate = 0;
gstate.auto_wobble = 0;
gstate.wobble_amplitude = 10.0;
gstate.wobble_period = 10.0;
/* background info */
gstate.bg_file = "BKGRND/sunset.rgb";
gstate.bg_on = 0;
gstate.dither_on = 0;
/* parse the arguments */
for (i=1; i<argc; i++)
{
if (!strcmp(argv[i], "-motif"))
{
gstate.motif_mode = 1;
}
else if (!strcmp(argv[i], "-auto"))
{
gstate.auto_rotate = 1;
}
else if (!strcmp(argv[i], "-image"))
{
i++;
if (argc < (i+1))
{
fprintf(stderr, "Error: image file not specified!\n");
exit(-1);
}
sprintf(image_file, "%s", argv[i]);
}
else if (!strcmp(argv[i], "-bgi"))
{
i++;
if (argc < (i+1))
{
fprintf(stderr, "Error: background file not specified!\n");
exit(-1);
}
sprintf(gstate.bg_file, "%s", argv[i]);
}
else if (!strcmp(argv[i], "-bgc"))
{
i++;
if (argc < (i+3))
{
fprintf(stderr, "Error: background rgb not specified!\n");
exit(-1);
}
else
{
gstate.bg_r = atoi(argv[i++]);
gstate.bg_g = atoi(argv[i++]);
gstate.bg_b = atoi(argv[i++]);
}
}
else
{
fprintf(stderr,
"USAGE: render [-options[args]]\n\n"
" -bgc r g b sets the background color\n"
" -image rgb_file texture maps the rgb_file\n"
" -bgi bg_file background image file\n"
" -motif uses motif widgets\n"
" -auto enables automatic rotation\n"
"\n");
exit(-1);
}
}
/* the main window */
prefposition(WIN_LEFT, WIN_LEFT+WIN_WIDTH, WIN_BOTTOM, WIN_BOTTOM+WIN_HEIGHT);
foreground();
gstate.winview = winopen("slick");
gconfig();
winconstraints();
RGBmode();
doublebuffer();
gconfig();
/*
overlay(2);
drawmode(OVERDRAW);
RGBmode();
doublebuffer();
gconfig();
underlay(2);
drawmode(UNDERDRAW);
RGBmode();
doublebuffer();
gconfig();
*/
/* man GCONFIG */
/* set up the framebuffers */
/* start in normal draw mode */
drawmode(NORMALDRAW);
shademodel(GOURAUD);
linewidth(1);
win_stat(gstate.winview, gstate.orgview, gstate.sizeview);
mmode(MVIEWING);
if (gstate.alpha_on)
blendfunction(BF_SA, BF_MSA);
else
blendfunction(BF_ONE, BF_ZERO);
backface(gstate.backface_on);
concave(gstate.concave_on);
zfunction(ZF_LESS);
zbuffer(gstate.zbuffer_on);
glcompat(GLC_ZRANGEMAP, 0);
lsetdepth(getgdesc(GD_ZMIN), getgdesc(GD_ZMAX));
/* depth-cue range */
lRGBrange(20, 20, 20, 255, 255, 255, getgdesc(GD_ZMIN), getgdesc(GD_ZMAX));
depthcue(FALSE);
fogvertex(FG_OFF, 0);
zclear();
polymode(PYM_FILL);
swapinterval(1);
nmode(NAUTO);
linewidth(1);
subpixel(FALSE);
pntsmooth(SMP_OFF);
linesmooth(SML_OFF);
polysmooth(PYSM_OFF);
dither(DT_ON);
/* queue the following devices for the user interface */
qdevice(LEFTSHIFTKEY); /* used for z-rotation with left mouse ... */
qdevice(RIGHTSHIFTKEY); /* ... and scaling with right mouse */
qdevice(LEFTMOUSE); /* used for rotation about x-y axes*/
qdevice(MIDDLEMOUSE); /* used for rotation about z-axis (left-right) and scaling (up-down) */
qdevice(RIGHTMOUSE); /* used for translation on x-y plane */
/* the arrow keys are used for rotation */
qdevice(LEFTARROWKEY);
qdevice(DOWNARROWKEY);
qdevice(RIGHTARROWKEY);
qdevice(UPARROWKEY);
/* the pad keys are also used for different rotations depending of mode */
qdevice(PAD0);
qdevice(PAD1); /* un used for now */
qdevice(PAD2);
qdevice(PAD3); /* un used for now */
qdevice(PAD4);
qdevice(PAD5); /* un used for now */
qdevice(PAD6);
qdevice(PAD7); /* un used for now */
qdevice(PAD8);
qdevice(PAD9); /* un used for now */
qdevice(SPACEKEY); /* brakes for the car in game mode */
qdevice(EQUALKEY); /* increase mouse sensitivity */
qdevice(MINUSKEY); /* decrease mouse sensitivity */
/* if we're not in motif mode, then we need to queue more devices
so that we can change various options with the keyboard */
if (!gstate.motif_mode)
{
qdevice(AKEY); /* toggle aspect ratio on/off */
qdevice(BKEY); /* toggle backfacing on/off */
qdevice(CKEY); /* toggle concave on/off */
qdevice(DKEY); /* toggle depth-cueing on/off */
qdevice(EKEY); /* toggle eyemode on/off */
qdevice(FKEY); /* toggle fog on/off */
qdevice(GKEY); /* toggle smoothing on/off */
qdevice(HKEY); /* toggle background blitting on/off */
qdevice(LKEY); /* toggle lights on/off */
qdevice(MKEY); /* toggle texmap on/off */
qdevice(PKEY); /* toggle perspective/parallel projection */
qdevice(QKEY); /* toggle twosided materials on/off */
qdevice(SKEY); /* toggle shading model gouraud/flat */
qdevice(TKEY); /* toggle transparency on/off */
qdevice(WKEY); /* toggle polygon/wireframe */
qdevice(ZKEY); /* toggle zbuffer on/off */
qdevice(TWOKEY); /* toggle stereo off/on */
qdevice(RETKEY); /* save image */
qdevice(ESCKEY); /* exit program */
}
/* initialize lights, materials, textures, and fog */
init_materials();
init_lights();
/* set memory size for objects */
chunksize(1024);
Scherk = genobj();
Collins = genobj();
CurrObj = Collins;
gstate.num_polygons = make_display_list(CurrObj, geometry_display_list);
CurrObj = Scherk;
gstate.num_polygons = make_display_list(CurrObj, geometry_display_list);
/* set up the background data */
gstate.bg_data = longimagedata(gstate.bg_file);
sizeofimage(gstate.bg_file, &gstate.bg_size[X], &gstate.bg_size[Y]);
rectzoom((float)(gstate.sizeview[X])/(float)gstate.bg_size[X],
(float)(gstate.sizeview[Y])/(float)gstate.bg_size[Y]);
/* curstype(C16X2); C16X1, C16X2, C32X1, C32X2, CCROSS */
/* set up the cursor, if not user defined, set to the finger */
drawmode(CURSORDRAW);
curstype(C16X1);
mapcolor(1, 240, 200, 0);
mapcolor(2, 0, 255, 255);
mapcolor(3, 0, 255, 0);
winset(gstate.winview);
curstype(C32X1);
defcursor(1, finger);
curorigin(1, 7, 31);
setcursor(1, dummy, dummy);
drawmode(NORMALDRAW);
set_viewport(gstate);
set_view(gstate);
win_clear(gstate.bg_r, gstate.bg_g, gstate.bg_b);
swapbuffers();
gflush();
}
void init_materials()
{
define_texture();
/* define_fog(0.0, cv_rad, cv_rad*4.0, 0.4, 0.4, 0.4);*/
/* define_fog(0.0, 3.0, 25.0, 0.0, 0.0, 0.0);*/
}
void init_lights()
{
gstate.num_lights = 0;
make_ambient_light(.2, .2, .2, 1.0, 0.0, 0.0, gstate.twoside);
make_directional_light(0.8, 0.8, 0.8, 0.0, 0.0, 0.0, -1.0, -1.0, -1.0);
}