2 * This program is under the GNU GPL.
3 * Use at your own risk.
5 * You need TWO Voodoo Graphics boards in order to run
8 * written by David Bucciarelli (tech.hmw@plus.it)
23 #include "tunneldat.h"
30 static int fullscreen
= 1;
34 GLint
fxMesaSelectCurrentBoard(int);
37 static int WIDTHC0
= 640;
38 static int HEIGHTC0
= 480;
40 static int WIDTHC1
= 640;
41 static int HEIGHTC1
= 480;
44 static GLint Frames
= 0;
49 #define M_PI 3.1415926535
52 static float obs
[3] = { 1000.0, 0.0, 2.0 };
55 static float alpha
= 90.0;
56 static float beta
= 90.0;
59 static int bfcull
= 1;
60 static int usetex
= 1;
61 static int cstrip
= 0;
63 static int joyavailable
= 0;
64 static int joyactive
= 0;
66 static int channel
[2];
68 static GLuint t1id
, t2id
;
73 glGenTextures(1, &t1id
);
74 glBindTexture(GL_TEXTURE_2D
, t1id
);
76 if (!LoadRGBMipmaps("../images/tile.rgb", GL_RGB
)) {
77 fprintf(stderr
, "Error reading a texture.\n");
81 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_S
, GL_REPEAT
);
82 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_T
, GL_REPEAT
);
84 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MIN_FILTER
,
85 GL_LINEAR_MIPMAP_NEAREST
);
86 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
88 glGenTextures(1, &t2id
);
89 glBindTexture(GL_TEXTURE_2D
, t2id
);
91 if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB
)) {
92 fprintf(stderr
, "Error reading a texture.\n");
96 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_S
, GL_REPEAT
);
97 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_T
, GL_REPEAT
);
99 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MIN_FILTER
,
100 GL_LINEAR_MIPMAP_NEAREST
);
101 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
103 glTexEnvf(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, GL_MODULATE
);
107 drawobjs(const int *l
, const float *f
)
112 float r
= 0.33, g
= 0.33, b
= 0.33;
130 glBegin(GL_TRIANGLE_STRIP
);
131 for (j
= 0; j
< mend
; j
++) {
145 glBegin(GL_TRIANGLE_STRIP
);
146 for (j
= 0; j
< mend
; j
++) {
161 dir
[0] = sin(alpha
* M_PI
/ 180.0);
162 dir
[1] = cos(alpha
* M_PI
/ 180.0) * sin(beta
* M_PI
/ 180.0);
163 dir
[2] = cos(beta
* M_PI
/ 180.0);
165 if (dir
[0] < 1.0e-5 && dir
[0] > -1.0e-5)
167 if (dir
[1] < 1.0e-5 && dir
[1] > -1.0e-5)
169 if (dir
[2] < 1.0e-5 && dir
[2] > -1.0e-5)
172 obs
[0] += v
* dir
[0];
173 obs
[1] += v
* dir
[1];
174 obs
[2] += v
* dir
[2];
178 special(int k
, int x
, int y
)
197 key(unsigned char k
, int x
, int y
)
213 fullscreen
= (!fullscreen
);
215 glutSetWindow(channel
[0]);
216 XMesaSetFXmode(fullscreen
? XMESA_FX_FULLSCREEN
: XMESA_FX_WINDOW
);
218 glutSetWindow(channel
[1]);
219 XMesaSetFXmode(fullscreen
? XMESA_FX_FULLSCREEN
: XMESA_FX_WINDOW
);
224 joyactive
= (!joyactive
);
237 glDisable(GL_CULL_FACE
);
241 glEnable(GL_CULL_FACE
);
250 fprintf(stderr
, "Deleting textures...\n");
251 glDeleteTextures(1, &t1id
);
252 glDeleteTextures(1, &t2id
);
253 fprintf(stderr
, "Loading textures...\n");
255 fprintf(stderr
, "Done.\n");
261 reshapechannel0(int w
, int h
)
267 glMatrixMode(GL_PROJECTION
);
270 ratio
= 0.5f
* w
/ (float) h
;
272 glFrustum(-2.0, 0.0, -1.0 * ratio
, 1.0 * ratio
, 1.0, 60.0);
274 glMatrixMode(GL_MODELVIEW
);
276 glViewport(0, 0, w
, h
);
280 reshapechannel1(int w
, int h
)
286 glMatrixMode(GL_PROJECTION
);
289 ratio
= 0.5f
* w
/ (float) h
;
291 glFrustum(0.0, 2.0, -1.0 * ratio
, 1.0 * ratio
, 1.0, 60.0);
293 glMatrixMode(GL_MODELVIEW
);
295 glViewport(0, 0, w
, h
);
299 printstring(void *font
, char *string
)
303 len
= (int) strlen(string
);
304 for (i
= 0; i
< len
; i
++)
305 glutBitmapCharacter(font
, string
[i
]);
311 glBlendFunc(GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
312 glColor4f(0.0, 0.0, 0.0, 0.5);
313 glRecti(40, 40, 600, 440);
315 glColor3f(1.0, 0.0, 0.0);
316 glRasterPos2i(300, 420);
317 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "Help");
319 glRasterPos2i(60, 390);
320 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "h - Togle Help");
321 glRasterPos2i(60, 360);
322 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "t - Togle Textures");
323 glRasterPos2i(60, 330);
324 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "f - Togle Fog");
325 glRasterPos2i(60, 300);
326 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "m - Togle strips");
327 glRasterPos2i(60, 270);
328 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "b - Togle Back face culling");
329 glRasterPos2i(60, 240);
330 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "Arrow Keys - Rotate");
331 glRasterPos2i(60, 210);
332 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "a - Increase velocity");
333 glRasterPos2i(60, 180);
334 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "z - Decrease velocity");
336 glRasterPos2i(60, 150);
338 printstring(GLUT_BITMAP_TIMES_ROMAN_24
,
339 "j - Togle jostick control (Joystick control available)");
341 printstring(GLUT_BITMAP_TIMES_ROMAN_24
,
342 "(No Joystick control available)");
349 static UINT max
[2] = { 0, 0 };
350 static UINT min
[2] = { 0xffffffff, 0xffffffff }, center
[2];
354 res
= joyGetPos(JOYSTICKID1
, &joy
);
356 if (res
== JOYERR_NOERROR
) {
359 if (max
[0] < joy
.wXpos
)
361 if (min
[0] > joy
.wXpos
)
363 center
[0] = (max
[0] + min
[0]) / 2;
365 if (max
[1] < joy
.wYpos
)
367 if (min
[1] > joy
.wYpos
)
369 center
[1] = (max
[1] + min
[1]) / 2;
372 if (fabs(center
[0] - (float) joy
.wXpos
) > 0.1 * (max
[0] - min
[0]))
374 2.0 * (center
[0] - (float) joy
.wXpos
) / (max
[0] - min
[0]);
375 if (fabs(center
[1] - (float) joy
.wYpos
) > 0.1 * (max
[1] - min
[1]))
376 beta
+= 2.0 * (center
[1] - (float) joy
.wYpos
) / (max
[1] - min
[1]);
378 if (joy
.wButtons
& JOY_BUTTON1
)
380 if (joy
.wButtons
& JOY_BUTTON2
)
392 static char frbuf
[80] = "";
398 glClear(GL_COLOR_BUFFER_BIT
);
400 glClear(GL_COLOR_BUFFER_BIT
);
403 glEnable(GL_TEXTURE_2D
);
405 glDisable(GL_TEXTURE_2D
);
412 glShadeModel(GL_SMOOTH
);
416 gluLookAt(obs
[0], obs
[1], obs
[2],
417 obs
[0] + dir
[0], obs
[1] + dir
[1], obs
[2] + dir
[2],
422 base
= obs
[0] - fmod(obs
[0], 8.0);
426 base
= obs
[0] + (8.0 - fmod(obs
[0], 8.0));
430 glTranslatef(base
- offset
/ 2.0, 0.0, 0.0);
431 for (i
= 0; i
< NUMBLOC
; i
++) {
432 glTranslatef(offset
, 0.0, 0.0);
433 glBindTexture(GL_TEXTURE_2D
, t1id
);
434 drawobjs(striplength_skin_11
, stripdata_skin_11
);
435 glBindTexture(GL_TEXTURE_2D
, t2id
);
436 drawobjs(striplength_skin_12
, stripdata_skin_12
);
437 drawobjs(striplength_skin_9
, stripdata_skin_9
);
438 drawobjs(striplength_skin_13
, stripdata_skin_13
);
443 glDisable(GL_TEXTURE_2D
);
445 glShadeModel(GL_FLAT
);
447 glMatrixMode(GL_PROJECTION
);
450 glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
452 glMatrixMode(GL_MODELVIEW
);
455 glColor3f(1.0, 0.0, 0.0);
456 glRasterPos2i(10, 10);
457 printstring(GLUT_BITMAP_HELVETICA_18
, frbuf
);
458 glRasterPos2i(350, 470);
459 printstring(GLUT_BITMAP_HELVETICA_10
,
460 "Tunnel2 V1.0 Written by David Bucciarelli (tech.hmw@plus.it)");
465 glMatrixMode(GL_PROJECTION
);
467 glMatrixMode(GL_MODELVIEW
);
471 GLint t
= glutGet(GLUT_ELAPSED_TIME
);
472 if (t
- T0
>= 2000) {
473 GLfloat seconds
= (t
- T0
) / 1000.0;
474 GLfloat fps
= Frames
/ seconds
;
475 sprintf(frbuf
, "Frame rate: %f", fps
);
485 glutSetWindow(channel
[0]);
493 glutSetWindow(channel
[1]);
501 glutSetWindow(channel
[0]);
503 glutSetWindow(channel
[1]);
506 glutSetWindow(channel
[0]);
508 glutSetWindow(channel
[1]);
515 float fogcolor
[4] = { 0.7, 0.7, 0.7, 1.0 };
517 glShadeModel(GL_SMOOTH
);
518 glDisable(GL_DEPTH_TEST
);
519 glEnable(GL_CULL_FACE
);
520 glEnable(GL_TEXTURE_2D
);
523 glFogi(GL_FOG_MODE
, GL_EXP2
);
524 glFogfv(GL_FOG_COLOR
, fogcolor
);
526 glFogf(GL_FOG_DENSITY
, 0.06);
527 glHint(GL_FOG_HINT
, GL_NICEST
);
531 glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
532 glEnable(GL_POLYGON_SMOOTH);
535 glClearColor(fogcolor
[0], fogcolor
[1], fogcolor
[2], fogcolor
[3]);
536 glClear(GL_COLOR_BUFFER_BIT
);
540 main(int ac
, char **av
)
543 "Tunnel2 V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
545 glutInitWindowPosition(0, 0);
546 glutInitWindowSize(WIDTHC0
, HEIGHTC0
);
549 glutInitDisplayMode(GLUT_RGB
| GLUT_DOUBLE
);
552 if (fxMesaSelectCurrentBoard(0) < 0) {
553 fprintf(stderr
, "The first Voodoo Graphics board is missing !?!?\n");
557 if (!(channel
[0] = glutCreateWindow("Channel 0"))) {
558 fprintf(stderr
, "Error, couldn't open window\n");
562 reshapechannel0(WIDTHC0
, HEIGHTC0
);
565 glutDisplayFunc(drawchannel0
);
566 glutReshapeFunc(reshapechannel0
);
567 glutKeyboardFunc(key
);
568 glutSpecialFunc(special
);
571 if (fxMesaSelectCurrentBoard(1) < 0) {
572 fprintf(stderr
, "The second Voodoo Graphics board is missing !\n");
576 glutInitWindowPosition(WIDTHC0
, 0);
577 glutInitWindowSize(WIDTHC1
, HEIGHTC1
);
578 if (!(channel
[1] = glutCreateWindow("Channel 1"))) {
579 fprintf(stderr
, "Error, couldn't open window\n");
583 reshapechannel1(WIDTHC1
, HEIGHTC1
);
586 glutDisplayFunc(drawchannel1
);
587 glutReshapeFunc(reshapechannel1
);
588 glutKeyboardFunc(key
);
589 glutSpecialFunc(special
);
591 glutIdleFunc(drawall
);