Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.

The remaining programs are ones I've had difficulty finding a build
environment for to make the build system or are unit tests that should
probably live next to their code instead.  Hopefully people can bring
over the build for remaining pieces they care about.

1 files changed, 0 insertions, 905 deletions

diff --git a/progs/demos/ray.c b/progs/demos/ray.c
deleted file mode 100644
index 9cc464d239..0000000000
--- a/progs/demos/ray.c
+++ /dev/null
@@ -1,905 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <GL/glut.h>
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-static int WIDTH = 640;
-static int HEIGHT = 480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-
-#define BASESIZE 7.5f
-#define SPHERE_RADIUS 0.75f
-
-#define TEX_CHECK_WIDTH 256
-#define TEX_CHECK_HEIGHT 256
-#define TEX_CHECK_SLOT_SIZE (TEX_CHECK_HEIGHT/16)
-#define TEX_CHECK_NUMSLOT (TEX_CHECK_HEIGHT/TEX_CHECK_SLOT_SIZE)
-
-#define TEX_REFLECT_WIDTH 256
-#define TEX_REFLECT_HEIGHT 256
-#define TEX_REFLECT_SLOT_SIZE (TEX_REFLECT_HEIGHT/16)
-#define TEX_REFLECT_NUMSLOT (TEX_REFLECT_HEIGHT/TEX_REFLECT_SLOT_SIZE)
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-#define EPSILON 0.0001
-
-#define clamp255(a)  ( (a)<(0.0f) ? (0.0f) : ((a)>(255.0f) ? (255.0f) : (a)) )
-
-#ifndef fabs
-#define fabs(x) ((x)<0.0f?-(x):(x))
-#endif
-
-#define vequ(a,b) { (a)[0]=(b)[0]; (a)[1]=(b)[1]; (a)[2]=(b)[2]; }
-#define vsub(a,b,c) { (a)[0]=(b)[0]-(c)[0]; (a)[1]=(b)[1]-(c)[1]; (a)[2]=(b)[2]-(c)[2]; }
-#define	dprod(a,b) ((a)[0]*(b)[0]+(a)[1]*(b)[1]+(a)[2]*(b)[2])
-#define vnormalize(a,b) { \
-  register float m_norm; \
-  m_norm=sqrt((double)dprod((a),(a))); \
-  (a)[0] /=m_norm; \
-  (a)[1] /=m_norm; \
-  (a)[2] /=m_norm; }
-
-static GLubyte checkmap[TEX_CHECK_HEIGHT][TEX_CHECK_WIDTH][3];
-static GLuint checkid;
-static int checkmap_currentslot = 0;
-
-static GLubyte reflectmap[TEX_REFLECT_HEIGHT][TEX_REFLECT_WIDTH][3];
-static GLuint reflectid;
-static int reflectmap_currentslot = 0;
-
-static GLuint lightdlist;
-static GLuint objdlist;
-
-static float lightpos[3] = { 2.1, 2.1, 2.8 };
-static float objpos[3] = { 0.0, 0.0, 1.0 };
-
-static float sphere_pos[TEX_CHECK_HEIGHT][TEX_REFLECT_WIDTH][3];
-
-static int win = 0;
-
-static float fogcolor[4] = { 0.05, 0.05, 0.05, 1.0 };
-
-static float obs[3] = { 7.0, 0.0, 2.0 };
-static float dir[3];
-static float v = 0.0;
-static float alpha = -90.0;
-static float beta = 90.0;
-
-static int fog = 1;
-static int bfcull = 1;
-static int poutline = 0;
-static int help = 1;
-static int showcheckmap = 1;
-static int showreflectmap = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-
-static void
-calcposobs(void)
-{
-   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];
-   obs[1] += v * dir[1];
-   obs[2] += v * dir[2];
-}
-
-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 's':
-      lightpos[1] -= 0.1;
-      break;
-   case 'd':
-      lightpos[1] += 0.1;
-      break;
-   case 'e':
-      lightpos[0] -= 0.1;
-      break;
-   case 'x':
-      lightpos[0] += 0.1;
-      break;
-   case 'w':
-      lightpos[2] -= 0.1;
-      break;
-   case 'r':
-      lightpos[2] += 0.1;
-      break;
-
-   case 'j':
-      objpos[1] -= 0.1;
-      break;
-   case 'k':
-      objpos[1] += 0.1;
-      break;
-   case 'i':
-      objpos[0] -= 0.1;
-      break;
-   case 'm':
-      objpos[0] += 0.1;
-      break;
-   case 'u':
-      objpos[2] -= 0.1;
-      break;
-   case 'o':
-      objpos[2] += 0.1;
-      break;
-
-   case 'a':
-      v += 0.005;
-      break;
-   case 'z':
-      v -= 0.005;
-      break;
-
-   case 'g':
-      joyactive = (!joyactive);
-      break;
-   case 'h':
-      help = (!help);
-      break;
-   case 'f':
-      fog = (!fog);
-      break;
-
-   case '1':
-      showcheckmap = (!showcheckmap);
-      break;
-   case '2':
-      showreflectmap = (!showreflectmap);
-      break;
-
-   case 'b':
-      if (bfcull) {
-	 glDisable(GL_CULL_FACE);
-	 bfcull = 0;
-      }
-      else {
-	 glEnable(GL_CULL_FACE);
-	 bfcull = 1;
-      }
-      break;
-   case 'p':
-      if (poutline) {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-	 poutline = 0;
-      }
-      else {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-	 poutline = 1;
-      }
-      break;
-#ifdef XMESA
-   case ' ':
-      XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
-      fullscreen = (!fullscreen);
-      break;
-#endif
-   }
-}
-
-static void
-reshape(int w, int h)
-{
-   WIDTH = w;
-   HEIGHT = h;
-   glViewport(0, 0, w, h);
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   gluPerspective(45.0, w / (float) h, 0.8, 40.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-}
-
-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)
-{
-   glEnable(GL_BLEND);
-   glColor4f(0.5, 0.5, 0.5, 0.5);
-   glRecti(40, 40, 600, 440);
-   glDisable(GL_BLEND);
-
-   glColor3f(0.0, 0.0, 1.0);
-   glRasterPos2i(300, 420);
-   printstring(GLUT_BITMAP_HELVETICA_18, "Help");
-
-   glRasterPos2i(60, 390);
-   printstring(GLUT_BITMAP_HELVETICA_12, "h - Toggle Help");
-   glRasterPos2i(60, 370);
-   printstring(GLUT_BITMAP_HELVETICA_12, "f - Toggle Fog");
-   glRasterPos2i(60, 350);
-   printstring(GLUT_BITMAP_HELVETICA_12, "b - Toggle Back face culling");
-   glRasterPos2i(60, 330);
-   printstring(GLUT_BITMAP_HELVETICA_12, "p - Toggle Wire frame");
-   glRasterPos2i(60, 310);
-   printstring(GLUT_BITMAP_HELVETICA_12, "Arrow Keys - Rotate");
-   glRasterPos2i(60, 290);
-   printstring(GLUT_BITMAP_HELVETICA_12, "a - Increase velocity");
-   glRasterPos2i(60, 270);
-   printstring(GLUT_BITMAP_HELVETICA_12, "z - Decrease velocity");
-
-   glRasterPos2i(60, 250);
-   if (joyavailable)
-      printstring(GLUT_BITMAP_HELVETICA_12,
-		  "j - Toggle jostick control (Joystick control available)");
-   else
-      printstring(GLUT_BITMAP_HELVETICA_12,
-		  "(No Joystick control available)");
-
-   glRasterPos2i(60, 230);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "To move the light source: s - left,  d - right,  e - far,  x - near,  w - down r - up");
-   glRasterPos2i(60, 210);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "To move the mirror sphere: j - left,  k - right,  i - far,  m - near,  u - down o - up");
-
-   glRasterPos2i(60, 190);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "1 - Toggle the plane texture map window");
-
-   glRasterPos2i(60, 170);
-   printstring(GLUT_BITMAP_HELVETICA_12,
-	       "2 - Toggle the sphere texture map window");
-}
-
-static GLboolean
-seelight(float p[3], float dir[3])
-{
-   float c[3], b, a, d, t, dist[3];
-
-   vsub(c, p, objpos);
-   b = -dprod(c, dir);
-   a = dprod(c, c) - SPHERE_RADIUS * SPHERE_RADIUS;
-
-   if ((d = b * b - a) < 0.0 || (b < 0.0 && a > 0.0))
-      return GL_FALSE;
-
-   d = sqrt(d);
-
-   t = b - d;
-
-   if (t < EPSILON) {
-      t = b + d;
-      if (t < EPSILON)
-	 return GL_FALSE;
-   }
-
-   vsub(dist, lightpos, p);
-   if (dprod(dist, dist) < t * t)
-      return GL_FALSE;
-
-   return GL_TRUE;
-}
-
-static int
-colorcheckmap(float ppos[3], float c[3])
-{
-   static float norm[3] = { 0.0f, 0.0f, 1.0f };
-   float ldir[3], vdir[3], h[3], dfact, kfact, r, g, b;
-   int x, y;
-
-   x = (int) ((ppos[0] + BASESIZE / 2) * (10.0f / BASESIZE));
-   if ((x < 0) || (x > 10))
-      return GL_FALSE;
-
-   y = (int) ((ppos[1] + BASESIZE / 2) * (10.0f / BASESIZE));
-   if ((y < 0) || (y > 10))
-      return GL_FALSE;
-
-   r = 255.0f;
-   if (y & 1) {
-      if (x & 1)
-	 g = 255.0f;
-      else
-	 g = 0.0f;
-   }
-   else {
-      if (x & 1)
-	 g = 0.0f;
-      else
-	 g = 255.0f;
-   }
-   b = 0.0f;
-
-   vsub(ldir, lightpos, ppos);
-   vnormalize(ldir, ldir);
-
-   if (seelight(ppos, ldir)) {
-      c[0] = r * 0.05f;
-      c[1] = g * 0.05f;
-      c[2] = b * 0.05f;
-
-      return GL_TRUE;
-   }
-
-   dfact = dprod(ldir, norm);
-   if (dfact < 0.0f)
-      dfact = 0.0f;
-
-   vsub(vdir, obs, ppos);
-   vnormalize(vdir, vdir);
-   h[0] = 0.5f * (vdir[0] + ldir[0]);
-   h[1] = 0.5f * (vdir[1] + ldir[1]);
-   h[2] = 0.5f * (vdir[2] + ldir[2]);
-   kfact = dprod(h, norm);
-   kfact = pow(kfact, 6.0) * 7.0 * 255.0;
-
-   r = r * dfact + kfact;
-   g = g * dfact + kfact;
-   b = b * dfact + kfact;
-
-   c[0] = clamp255(r);
-   c[1] = clamp255(g);
-   c[2] = clamp255(b);
-
-   return GL_TRUE;
-}
-
-static void
-updatecheckmap(int slot)
-{
-   float c[3], ppos[3];
-   int x, y;
-
-   glBindTexture(GL_TEXTURE_2D, checkid);
-
-   ppos[2] = 0.0f;
-   for (y = slot * TEX_CHECK_SLOT_SIZE; y < (slot + 1) * TEX_CHECK_SLOT_SIZE;
-	y++) {
-      ppos[1] = (y / (float) TEX_CHECK_HEIGHT) * BASESIZE - BASESIZE / 2;
-
-      for (x = 0; x < TEX_CHECK_WIDTH; x++) {
-	 ppos[0] = (x / (float) TEX_CHECK_WIDTH) * BASESIZE - BASESIZE / 2;
-
-	 colorcheckmap(ppos, c);
-	 checkmap[y][x][0] = (GLubyte) c[0];
-	 checkmap[y][x][1] = (GLubyte) c[1];
-	 checkmap[y][x][2] = (GLubyte) c[2];
-      }
-   }
-
-   glTexSubImage2D(GL_TEXTURE_2D, 0, 0, slot * TEX_CHECK_SLOT_SIZE,
-		   TEX_CHECK_WIDTH, TEX_CHECK_SLOT_SIZE, GL_RGB,
-		   GL_UNSIGNED_BYTE,
-		   &checkmap[slot * TEX_CHECK_SLOT_SIZE][0][0]);
-
-}
-
-static void
-updatereflectmap(int slot)
-{
-   float rf, r, g, b, t, dfact, kfact, rdir[3];
-   float rcol[3], ppos[3], norm[3], ldir[3], h[3], vdir[3], planepos[3];
-   int x, y;
-
-   glBindTexture(GL_TEXTURE_2D, reflectid);
-
-   for (y = slot * TEX_REFLECT_SLOT_SIZE;
-	y < (slot + 1) * TEX_REFLECT_SLOT_SIZE; y++)
-      for (x = 0; x < TEX_REFLECT_WIDTH; x++) {
-	 ppos[0] = sphere_pos[y][x][0] + objpos[0];
-	 ppos[1] = sphere_pos[y][x][1] + objpos[1];
-	 ppos[2] = sphere_pos[y][x][2] + objpos[2];
-
-	 vsub(norm, ppos, objpos);
-	 vnormalize(norm, norm);
-
-	 vsub(ldir, lightpos, ppos);
-	 vnormalize(ldir, ldir);
-	 vsub(vdir, obs, ppos);
-	 vnormalize(vdir, vdir);
-
-	 rf = 2.0f * dprod(norm, vdir);
-	 if (rf > EPSILON) {
-	    rdir[0] = rf * norm[0] - vdir[0];
-	    rdir[1] = rf * norm[1] - vdir[1];
-	    rdir[2] = rf * norm[2] - vdir[2];
-
-	    t = -objpos[2] / rdir[2];
-
-	    if (t > EPSILON) {
-	       planepos[0] = objpos[0] + t * rdir[0];
-	       planepos[1] = objpos[1] + t * rdir[1];
-	       planepos[2] = 0.0f;
-
-	       if (!colorcheckmap(planepos, rcol))
-		  rcol[0] = rcol[1] = rcol[2] = 0.0f;
-	    }
-	    else
-	       rcol[0] = rcol[1] = rcol[2] = 0.0f;
-	 }
-	 else
-	    rcol[0] = rcol[1] = rcol[2] = 0.0f;
-
-	 dfact = 0.1f * dprod(ldir, norm);
-
-	 if (dfact < 0.0f) {
-	    dfact = 0.0f;
-	    kfact = 0.0f;
-	 }
-	 else {
-	    h[0] = 0.5f * (vdir[0] + ldir[0]);
-	    h[1] = 0.5f * (vdir[1] + ldir[1]);
-	    h[2] = 0.5f * (vdir[2] + ldir[2]);
-	    kfact = dprod(h, norm);
-            kfact = pow(kfact, 4.0);
-            if (kfact < 1.0e-10)
-               kfact = 0.0;
-         }
-
-	 r = dfact + kfact;
-	 g = dfact + kfact;
-	 b = dfact + kfact;
-
-	 r *= 255.0f;
-	 g *= 255.0f;
-	 b *= 255.0f;
-
-	 r += rcol[0];
-	 g += rcol[1];
-	 b += rcol[2];
-
-	 r = clamp255(r);
-	 g = clamp255(g);
-	 b = clamp255(b);
-
-	 reflectmap[y][x][0] = (GLubyte) r;
-	 reflectmap[y][x][1] = (GLubyte) g;
-	 reflectmap[y][x][2] = (GLubyte) b;
-      }
-
-   glTexSubImage2D(GL_TEXTURE_2D, 0, 0, slot * TEX_REFLECT_SLOT_SIZE,
-		   TEX_REFLECT_WIDTH, TEX_REFLECT_SLOT_SIZE, GL_RGB,
-		   GL_UNSIGNED_BYTE,
-		   &reflectmap[slot * TEX_REFLECT_SLOT_SIZE][0][0]);
-}
-
-static void
-drawbase(void)
-{
-   glColor3f(0.0, 0.0, 0.0);
-   glBindTexture(GL_TEXTURE_2D, checkid);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-   glBegin(GL_QUADS);
-   glTexCoord2f(0.0f, 0.0f);
-   glVertex3f(-BASESIZE / 2.0f, -BASESIZE / 2.0f, 0.0f);
-
-   glTexCoord2f(1.0f, 0.0f);
-   glVertex3f(BASESIZE / 2.0f, -BASESIZE / 2.0f, 0.0f);
-
-   glTexCoord2f(1.0f, 1.0f);
-   glVertex3f(BASESIZE / 2.0f, BASESIZE / 2.0f, 0.0f);
-
-   glTexCoord2f(0.0f, 1.0f);
-   glVertex3f(-BASESIZE / 2.0f, BASESIZE / 2.0f, 0.0f);
-
-   glEnd();
-}
-
-static void
-drawobj(void)
-{
-   glColor3f(0.0, 0.0, 0.0);
-   glBindTexture(GL_TEXTURE_2D, reflectid);
-   glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-   glPushMatrix();
-   glTranslatef(objpos[0], objpos[1], objpos[2]);
-   glCallList(objdlist);
-   glPopMatrix();
-}
-
-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 -=
-	       2.5 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
-	 if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
-	    beta += 2.5 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
-	 if (joy.wButtons & JOY_BUTTON1)
-	    v += 0.005;
-	 if (joy.wButtons & JOY_BUTTON2)
-	    v -= 0.005;
-      }
-   }
-   else
-      joyavailable = 0;
-#endif
-}
-
-static void
-updatemaps(void)
-{
-   updatecheckmap(checkmap_currentslot);
-   checkmap_currentslot = (checkmap_currentslot + 1) % TEX_CHECK_NUMSLOT;
-
-   updatereflectmap(reflectmap_currentslot);
-   reflectmap_currentslot =
-      (reflectmap_currentslot + 1) % TEX_REFLECT_NUMSLOT;
-}
-
-static void
-draw(void)
-{
-   static char frbuf[80] = "";
-
-   dojoy();
-
-   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-   glEnable(GL_TEXTURE_2D);
-   glEnable(GL_DEPTH_TEST);
-   if (fog)
-      glEnable(GL_FOG);
-   else
-      glDisable(GL_FOG);
-
-   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);
-
-   drawbase();
-   drawobj();
-
-   glColor3f(1.0, 1.0, 1.0);
-   glDisable(GL_TEXTURE_2D);
-
-   glPushMatrix();
-   glTranslatef(lightpos[0], lightpos[1], lightpos[2]);
-   glCallList(lightdlist);
-   glPopMatrix();
-
-   glPopMatrix();
-
-   glDisable(GL_DEPTH_TEST);
-   glDisable(GL_FOG);
-
-   glMatrixMode(GL_PROJECTION);
-   glPushMatrix();
-   glLoadIdentity();
-   glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-   glMatrixMode(GL_MODELVIEW);
-
-   glColor3f(0.0f, 0.3f, 1.0f);
-
-   if (showcheckmap) {
-      glEnable(GL_TEXTURE_2D);
-      glBindTexture(GL_TEXTURE_2D, checkid);
-      glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-      glBegin(GL_QUADS);
-      glTexCoord2f(1.0f, 0.0f);
-      glVertex2i(10, 30);
-      glTexCoord2f(1.0f, 1.0f);
-      glVertex2i(10 + 90, 30);
-      glTexCoord2f(0.0f, 1.0f);
-      glVertex2i(10 + 90, 30 + 90);
-      glTexCoord2f(0.0f, 0.0f);
-      glVertex2i(10, 30 + 90);
-      glEnd();
-
-      glDisable(GL_TEXTURE_2D);
-      glBegin(GL_LINE_LOOP);
-      glVertex2i(10, 30);
-      glVertex2i(10 + 90, 30);
-      glVertex2i(10 + 90, 30 + 90);
-      glVertex2i(10, 30 + 90);
-      glEnd();
-      glRasterPos2i(105, 65);
-      printstring(GLUT_BITMAP_HELVETICA_18, "Plane Texture Map");
-   }
-
-   if (showreflectmap) {
-      glEnable(GL_TEXTURE_2D);
-      glBindTexture(GL_TEXTURE_2D, reflectid);
-      glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
-
-      glBegin(GL_QUADS);
-      glTexCoord2f(1.0f, 0.0f);
-      glVertex2i(540, 30);
-      glTexCoord2f(1.0f, 1.0f);
-      glVertex2i(540 + 90, 30);
-      glTexCoord2f(0.0f, 1.0f);
-      glVertex2i(540 + 90, 30 + 90);
-      glTexCoord2f(0.0f, 0.0f);
-      glVertex2i(540, 30 + 90);
-      glEnd();
-
-      glDisable(GL_TEXTURE_2D);
-      glBegin(GL_LINE_LOOP);
-      glVertex2i(540, 30);
-      glVertex2i(540 + 90, 30);
-      glVertex2i(540 + 90, 30 + 90);
-      glVertex2i(540, 30 + 90);
-      glEnd();
-      glRasterPos2i(360, 65);
-      printstring(GLUT_BITMAP_HELVETICA_18, "Sphere Texture Map");
-   }
-
-   glDisable(GL_TEXTURE_2D);
-
-   glRasterPos2i(10, 10);
-   printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
-   glRasterPos2i(360, 470);
-   printstring(GLUT_BITMAP_HELVETICA_10,
-	       "Ray V1.0 Written by David Bucciarelli (tech.hmw@plus.it)");
-
-   if (help)
-      printhelp();
-
-   glMatrixMode(GL_PROJECTION);
-   glPopMatrix();
-   glMatrixMode(GL_MODELVIEW);
-
-   updatemaps();
-
-   glutSwapBuffers();
-
-   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
-inittextures(void)
-{
-   int y;
-
-   glGenTextures(1, &checkid);
-   glBindTexture(GL_TEXTURE_2D, checkid);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glTexImage2D(GL_TEXTURE_2D, 0, 3, TEX_CHECK_WIDTH, TEX_CHECK_HEIGHT,
-		0, GL_RGB, GL_UNSIGNED_BYTE, checkmap);
-
-   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);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   for (y = 0; y < TEX_CHECK_NUMSLOT; y++)
-      updatecheckmap(y);
-
-
-
-   glGenTextures(1, &reflectid);
-   glBindTexture(GL_TEXTURE_2D, reflectid);
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   glTexImage2D(GL_TEXTURE_2D, 0, 3, TEX_REFLECT_WIDTH, TEX_REFLECT_HEIGHT,
-		0, GL_RGB, GL_UNSIGNED_BYTE, reflectmap);
-
-   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);
-   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
-   for (y = 0; y < TEX_REFLECT_NUMSLOT; y++)
-      updatereflectmap(y);
-
-
-}
-
-static void
-initspherepos(void)
-{
-   float alpha, beta, sa, ca, sb, cb;
-   int x, y;
-
-   for (y = 0; y < TEX_REFLECT_HEIGHT; y++) {
-      beta = M_PI - y * (M_PI / TEX_REFLECT_HEIGHT);
-
-      for (x = 0; x < TEX_REFLECT_WIDTH; x++) {
-	 alpha = -x * (2.0f * M_PI / TEX_REFLECT_WIDTH);
-
-	 sa = sin(alpha);
-	 ca = cos(alpha);
-
-	 sb = sin(beta);
-	 cb = cos(beta);
-
-	 sphere_pos[y][x][0] = SPHERE_RADIUS * sa * sb;
-	 sphere_pos[y][x][1] = SPHERE_RADIUS * ca * sb;
-	 sphere_pos[y][x][2] = SPHERE_RADIUS * cb;
-      }
-   }
-}
-
-static void
-initdlists(void)
-{
-   GLUquadricObj *obj;
-
-   obj = gluNewQuadric();
-
-   lightdlist = glGenLists(1);
-   glNewList(lightdlist, GL_COMPILE);
-   gluQuadricDrawStyle(obj, GLU_FILL);
-   gluQuadricNormals(obj, GLU_NONE);
-   gluQuadricTexture(obj, GL_TRUE);
-   gluSphere(obj, 0.25f, 6, 6);
-   glEndList();
-
-   objdlist = glGenLists(1);
-   glNewList(objdlist, GL_COMPILE);
-   gluQuadricDrawStyle(obj, GLU_FILL);
-   gluQuadricNormals(obj, GLU_NONE);
-   gluQuadricTexture(obj, GL_TRUE);
-   gluSphere(obj, SPHERE_RADIUS, 16, 16);
-   glEndList();
-
-   gluDeleteQuadric(obj);
-}
-
-int
-main(int ac, char **av)
-{
-   fprintf(stderr,
-	   "Ray V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
-   /*
-      if(!SetPriorityClass(GetCurrentProcess(),REALTIME_PRIORITY_CLASS)) {
-      fprintf(stderr,"Error setting the process class.\n");
-      return 0;
-      }
-
-      if(!SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_TIME_CRITICAL)) {
-      fprintf(stderr,"Error setting the process priority.\n");
-      return 0;
-      }
-    */
-
-   glutInitWindowSize(WIDTH, HEIGHT);
-   glutInit(&ac, av);
-
-   glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
-
-   if (!(win = glutCreateWindow("Ray"))) {
-      fprintf(stderr, "Error, couldn't open window\n");
-      return -1;
-   }
-
-   reshape(WIDTH, HEIGHT);
-
-   glShadeModel(GL_FLAT);
-   glEnable(GL_DEPTH_TEST);
-   glDepthFunc(GL_LEQUAL);
-   glEnable(GL_CULL_FACE);
-   glEnable(GL_TEXTURE_2D);
-   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-
-   glEnable(GL_FOG);
-   glFogi(GL_FOG_MODE, GL_EXP2);
-   glFogfv(GL_FOG_COLOR, fogcolor);
-
-   glFogf(GL_FOG_DENSITY, 0.01);
-#ifdef FX
-   glHint(GL_FOG_HINT, GL_NICEST);
-#endif
-
-   calcposobs();
-
-   initspherepos();
-
-   inittextures();
-   initdlists();
-
-   glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]);
-
-   glutReshapeFunc(reshape);
-   glutDisplayFunc(draw);
-   glutKeyboardFunc(key);
-   glutSpecialFunc(special);
-   glutIdleFunc(draw);
-
-   glutMainLoop();
-
-   return 0;
-}