diff options
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c')
-rw-r--r-- | nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c | 605 |
1 files changed, 0 insertions, 605 deletions
diff --git a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c b/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c deleted file mode 100644 index 75a199af5..000000000 --- a/nx-X11/extras/Mesa_6.4.1/progs/demos/tunnel2.c +++ /dev/null @@ -1,605 +0,0 @@ -/* - * This program is under the GNU GPL. - * Use at your own risk. - * - * You need TWO Voodoo Graphics boards in order to run - * this demo ! - * - * written by David Bucciarelli (tech.hmw@plus.it) - * Humanware s.r.l. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <math.h> -#include <string.h> - -#ifdef WIN32 -#include <windows.h> -#endif - -#include <GL/glut.h> -#include "readtex.h" -#include "tunneldat.h" - -#ifdef FX -#endif - -#ifdef XMESA -#include "GL/xmesa.h" -static int fullscreen = 1; -#endif - -#ifdef FX -GLint fxMesaSelectCurrentBoard(int); -#endif - -static int WIDTHC0 = 640; -static int HEIGHTC0 = 480; - -static int WIDTHC1 = 640; -static int HEIGHTC1 = 480; - -static GLint T0 = 0; -static GLint Frames = 0; - -#define NUMBLOC 5 - -#ifndef M_PI -#define M_PI 3.1415926535 -#endif - -static float obs[3] = { 1000.0, 0.0, 2.0 }; -static float dir[3]; -static float v = 30.; -static float alpha = 90.0; -static float beta = 90.0; - -static int fog = 1; -static int bfcull = 1; -static int usetex = 1; -static int cstrip = 0; -static int help = 1; -static int joyavailable = 0; -static int joyactive = 0; - -static int channel[2]; - -static GLuint t1id, t2id; - -static void -inittextures(void) -{ - glGenTextures(1, &t1id); - glBindTexture(GL_TEXTURE_2D, t1id); - - if (!LoadRGBMipmaps("../images/tile.rgb", GL_RGB)) { - fprintf(stderr, "Error reading a texture.\n"); - exit(-1); - } - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_LINEAR_MIPMAP_NEAREST); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - - glGenTextures(1, &t2id); - glBindTexture(GL_TEXTURE_2D, t2id); - - if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB)) { - fprintf(stderr, "Error reading a texture.\n"); - exit(-1); - } - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, - GL_LINEAR_MIPMAP_LINEAR); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - - glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); -} - -static void -drawobjs(const int *l, const float *f) -{ - int mend, j; - - if (cstrip) { - float r = 0.33, g = 0.33, b = 0.33; - - for (; (*l) != 0;) { - mend = *l++; - - r += 0.33; - if (r > 1.0) { - r = 0.33; - g += 0.33; - if (g > 1.0) { - g = 0.33; - b += 0.33; - if (b > 1.0) - b = 0.33; - } - } - - glColor3f(r, g, b); - glBegin(GL_TRIANGLE_STRIP); - for (j = 0; j < mend; j++) { - f += 4; - glTexCoord2fv(f); - f += 2; - glVertex3fv(f); - f += 3; - } - glEnd(); - } - } - else - for (; (*l) != 0;) { - mend = *l++; - - glBegin(GL_TRIANGLE_STRIP); - for (j = 0; j < mend; j++) { - glColor4fv(f); - f += 4; - glTexCoord2fv(f); - f += 2; - glVertex3fv(f); - f += 3; - } - glEnd(); - } -} - -static void -calcposobs(void) -{ - static double t0 = -1.; - double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0; - if (t0 < 0.0) - t0 = t; - dt = t - t0; - t0 = t; - - dir[0] = sin(alpha * M_PI / 180.0); - dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0); - dir[2] = cos(beta * M_PI / 180.0); - - if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5) - dir[0] = 0; - if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5) - dir[1] = 0; - if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5) - dir[2] = 0; - - obs[0] += v * dir[0] * dt; - obs[1] += v * dir[1] * dt; - obs[2] += v * dir[2] * dt; -} - -static void -special(int k, int x, int y) -{ - switch (k) { - case GLUT_KEY_LEFT: - alpha -= 2.0; - break; - case GLUT_KEY_RIGHT: - alpha += 2.0; - break; - case GLUT_KEY_DOWN: - beta -= 2.0; - break; - case GLUT_KEY_UP: - beta += 2.0; - break; - } -} - -static void -key(unsigned char k, int x, int y) -{ - switch (k) { - case 27: - exit(0); - break; - - case 'a': - v += 5.; - break; - case 'z': - v -= 5.; - break; - -#ifdef XMESA - case ' ': - fullscreen = (!fullscreen); - - glutSetWindow(channel[0]); - XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW); - - glutSetWindow(channel[1]); - XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW); - break; -#endif - - case 'j': - joyactive = (!joyactive); - break; - case 'h': - help = (!help); - break; - case 'f': - fog = (!fog); - break; - case 't': - usetex = (!usetex); - break; - case 'b': - if (bfcull) { - glDisable(GL_CULL_FACE); - bfcull = 0; - } - else { - glEnable(GL_CULL_FACE); - bfcull = 1; - } - break; - case 'm': - cstrip = (!cstrip); - break; - - case 'd': - fprintf(stderr, "Deleting textures...\n"); - glDeleteTextures(1, &t1id); - glDeleteTextures(1, &t2id); - fprintf(stderr, "Loading textures...\n"); - inittextures(); - fprintf(stderr, "Done.\n"); - break; - } -} - -static void -reshapechannel0(int w, int h) -{ - float ratio; - - WIDTHC0 = w; - HEIGHTC0 = h; - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - - ratio = 0.5f * w / (float) h; - - glFrustum(-2.0, 0.0, -1.0 * ratio, 1.0 * ratio, 1.0, 60.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glViewport(0, 0, w, h); -} - -static void -reshapechannel1(int w, int h) -{ - float ratio; - - WIDTHC1 = w; - HEIGHTC1 = h; - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - - ratio = 0.5f * w / (float) h; - - glFrustum(0.0, 2.0, -1.0 * ratio, 1.0 * ratio, 1.0, 60.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glViewport(0, 0, w, h); -} - -static void -printstring(void *font, char *string) -{ - int len, i; - - len = (int) strlen(string); - for (i = 0; i < len; i++) - glutBitmapCharacter(font, string[i]); -} - -static void -printhelp(void) -{ - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - glColor4f(0.0, 0.0, 0.0, 0.5); - glRecti(40, 40, 600, 440); - - glColor3f(1.0, 0.0, 0.0); - glRasterPos2i(300, 420); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help"); - - glRasterPos2i(60, 390); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help"); - glRasterPos2i(60, 360); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures"); - glRasterPos2i(60, 330); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog"); - glRasterPos2i(60, 300); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "m - Toggle strips"); - glRasterPos2i(60, 270); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling"); - glRasterPos2i(60, 240); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate"); - glRasterPos2i(60, 210); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity"); - glRasterPos2i(60, 180); - printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity"); - - glRasterPos2i(60, 150); - if (joyavailable) - printstring(GLUT_BITMAP_TIMES_ROMAN_24, - "j - Toggle jostick control (Joystick control available)"); - else - printstring(GLUT_BITMAP_TIMES_ROMAN_24, - "(No Joystick control available)"); -} - -static void -dojoy(void) -{ -#ifdef WIN32 - static UINT max[2] = { 0, 0 }; - static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2]; - MMRESULT res; - JOYINFO joy; - - res = joyGetPos(JOYSTICKID1, &joy); - - if (res == JOYERR_NOERROR) { - joyavailable = 1; - - if (max[0] < joy.wXpos) - max[0] = joy.wXpos; - if (min[0] > joy.wXpos) - min[0] = joy.wXpos; - center[0] = (max[0] + min[0]) / 2; - - if (max[1] < joy.wYpos) - max[1] = joy.wYpos; - if (min[1] > joy.wYpos) - min[1] = joy.wYpos; - center[1] = (max[1] + min[1]) / 2; - - if (joyactive) { - if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0])) - alpha -= - 2.0 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]); - if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1])) - beta += 2.0 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]); - - if (joy.wButtons & JOY_BUTTON1) - v += 0.01; - if (joy.wButtons & JOY_BUTTON2) - v -= 0.01; - } - } - else - joyavailable = 0; -#endif -} - -static void -draw(void) -{ - static char frbuf[80] = ""; - int i; - float base, offset; - - dojoy(); - - glClear(GL_COLOR_BUFFER_BIT); - - glClear(GL_COLOR_BUFFER_BIT); - - if (usetex) - glEnable(GL_TEXTURE_2D); - else - glDisable(GL_TEXTURE_2D); - - if (fog) - glEnable(GL_FOG); - else - glDisable(GL_FOG); - - glShadeModel(GL_SMOOTH); - - glPushMatrix(); - calcposobs(); - gluLookAt(obs[0], obs[1], obs[2], - obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2], - 0.0, 0.0, 1.0); - - if (dir[0] > 0) { - offset = 8.0; - base = obs[0] - fmod(obs[0], 8.0); - } - else { - offset = -8.0; - base = obs[0] + (8.0 - fmod(obs[0], 8.0)); - } - - glPushMatrix(); - glTranslatef(base - offset / 2.0, 0.0, 0.0); - for (i = 0; i < NUMBLOC; i++) { - glTranslatef(offset, 0.0, 0.0); - glBindTexture(GL_TEXTURE_2D, t1id); - drawobjs(striplength_skin_11, stripdata_skin_11); - glBindTexture(GL_TEXTURE_2D, t2id); - drawobjs(striplength_skin_12, stripdata_skin_12); - drawobjs(striplength_skin_9, stripdata_skin_9); - drawobjs(striplength_skin_13, stripdata_skin_13); - } - glPopMatrix(); - glPopMatrix(); - - glDisable(GL_TEXTURE_2D); - glDisable(GL_FOG); - glShadeModel(GL_FLAT); - - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - glLoadIdentity(); - glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - - glColor3f(1.0, 0.0, 0.0); - glRasterPos2i(10, 10); - printstring(GLUT_BITMAP_HELVETICA_18, frbuf); - glRasterPos2i(350, 470); - printstring(GLUT_BITMAP_HELVETICA_10, - "Tunnel2 V1.0 Written by David Bucciarelli (tech.hmw@plus.it)"); - - if (help) - printhelp(); - - glMatrixMode(GL_PROJECTION); - glPopMatrix(); - glMatrixMode(GL_MODELVIEW); - - Frames++; - { - GLint t = glutGet(GLUT_ELAPSED_TIME); - if (t - T0 >= 2000) { - GLfloat seconds = (t - T0) / 1000.0; - GLfloat fps = Frames / seconds; - sprintf(frbuf, "Frame rate: %f", fps); - T0 = t; - Frames = 0; - } - } -} - -static void -drawchannel0(void) -{ - glutSetWindow(channel[0]); - draw(); - glutSwapBuffers(); -} - -static void -drawchannel1(void) -{ - glutSetWindow(channel[1]); - draw(); - glutSwapBuffers(); -} - -static void -drawall(void) -{ - glutSetWindow(channel[0]); - draw(); - glutSetWindow(channel[1]); - draw(); - - glutSetWindow(channel[0]); - glutSwapBuffers(); - glutSetWindow(channel[1]); - glutSwapBuffers(); -} - -static void -init(void) -{ - float fogcolor[4] = { 0.7, 0.7, 0.7, 1.0 }; - - glShadeModel(GL_SMOOTH); - glDisable(GL_DEPTH_TEST); - glEnable(GL_CULL_FACE); - glEnable(GL_TEXTURE_2D); - - glEnable(GL_FOG); - glFogi(GL_FOG_MODE, GL_EXP2); - glFogfv(GL_FOG_COLOR, fogcolor); - - glFogf(GL_FOG_DENSITY, 0.06); - glHint(GL_FOG_HINT, GL_NICEST); - - glEnable(GL_BLEND); - /* - glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE); - glEnable(GL_POLYGON_SMOOTH); - */ - - glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]); - glClear(GL_COLOR_BUFFER_BIT); -} - -int -main(int ac, char **av) -{ - fprintf(stderr, - "Tunnel2 V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n"); - - glutInitWindowPosition(0, 0); - glutInitWindowSize(WIDTHC0, HEIGHTC0); - glutInit(&ac, av); - - glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); - -#ifdef FX - if (fxMesaSelectCurrentBoard(0) < 0) { - fprintf(stderr, "The first Voodoo Graphics board is missing !?!?\n"); - return -1; - } -#endif - if (!(channel[0] = glutCreateWindow("Channel 0"))) { - fprintf(stderr, "Error, couldn't open window\n"); - return -1; - } - - reshapechannel0(WIDTHC0, HEIGHTC0); - init(); - inittextures(); - glutDisplayFunc(drawchannel0); - glutReshapeFunc(reshapechannel0); - glutKeyboardFunc(key); - glutSpecialFunc(special); - -#ifdef FX - if (fxMesaSelectCurrentBoard(1) < 0) { - fprintf(stderr, "The second Voodoo Graphics board is missing !\n"); - exit(-1); - } -#endif - glutInitWindowPosition(WIDTHC0, 0); - glutInitWindowSize(WIDTHC1, HEIGHTC1); - if (!(channel[1] = glutCreateWindow("Channel 1"))) { - fprintf(stderr, "Error, couldn't open window\n"); - exit(-1); - } - - reshapechannel1(WIDTHC1, HEIGHTC1); - init(); - inittextures(); - glutDisplayFunc(drawchannel1); - glutReshapeFunc(reshapechannel1); - glutKeyboardFunc(key); - glutSpecialFunc(special); - - glutIdleFunc(drawall); - - calcposobs(); - - glutMainLoop(); - - return 0; -} |