progs/windml/uglicotorus.c

   1 /* uglicotorus.c - WindML/Mesa example program */
   2
   3 /* Copyright (C) 2001 by Wind River Systems, Inc */
   4
   5 /*
   6  * Mesa 3-D graphics library
   7  * Version:  3.5
   8  *
   9  * The MIT License
  10  * Permission is hereby granted, free of charge, to any person obtaining a
  11  * copy of this software and associated documentation files (the "Software"),
  12  * to deal in the Software without restriction, including without limitation
  13  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  14  * and/or sell copies of the Software, and to permit persons to whom the
  15  * Software is furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included
  18  * in all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  23  * THE AUTHORS OR COPYRIGHT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  26  * DEALINGS IN THE SOFTWARE.
  27  */
  28
  29 /*
  30 modification history
  31 --------------------
  32 01a,jun01,sra
  33 */
  34
  35 #include <stdio.h>
  36 #include <math.h>
  37
  38 #include <ugl/uglevent.h>
  39 #include <ugl/uglinput.h>
  40 #include <ugl/uglucode.h>
  41
  42 #include <GL/uglmesa.h>
  43 #include <GL/glu.h>
  44
  45 /* Need GLUT_SHAPES */
  46
  47 #include <GL/uglglutshapes.h>
  48
  49 UGL_LOCAL UGL_EVENT_SERVICE_ID eventServiceId;
  50 UGL_LOCAL UGL_EVENT_Q_ID qId;
  51 UGL_LOCAL UGL_MESA_CONTEXT umc;
  52 UGL_LOCAL volatile UGL_BOOL stopWex;
  53
  54 UGL_LOCAL GLfloat angle;
  55 UGL_LOCAL GLboolean chaos_on;
  56 UGL_LOCAL GLboolean color_on;
  57
  58 UGL_LOCAL GLuint theIco, theTorus, theSphere, theCube;
  59
  60 UGL_LOCAL void initGL
  61     (
  62     int w,
  63     int h
  64     )
  65     {
  66     glViewport(0,0,(GLsizei)w,(GLsizei)h);
  67     glMatrixMode(GL_PROJECTION);
  68     glLoadIdentity();
  69     gluPerspective(60.0,(GLfloat)w/(GLfloat)h,1.0,60.0);
  70
  71     glMatrixMode(GL_MODELVIEW);
  72     glLoadIdentity();
  73     gluLookAt(0.0,0.0,25.0,0.0,0.0,0.0,0.0,1.0,0.0);
  74
  75     glClearColor(0.0,0.0,0.0,0.0);
  76
  77     glEnable(GL_DEPTH_TEST);
  78     glEnable(GL_LIGHTING);
  79     glEnable(GL_LIGHT0);
  80
  81     glEnable(GL_COLOR_MATERIAL);
  82
  83     theIco = glGenLists(1);
  84     glNewList(theIco, GL_COMPILE);
  85     glutSolidIcosahedron();
  86     glEndList();
  87
  88     theTorus = glGenLists(1);
  89     glNewList(theTorus, GL_COMPILE);
  90     glutSolidTorus(0.2,1.0,10,10);
  91     glEndList();
  92
  93     theSphere = glGenLists(1);
  94     glNewList(theSphere, GL_COMPILE);
  95     glutSolidSphere(2.5,20,20);
  96     glEndList();
  97
  98     theCube = glGenLists(1);
  99     glNewList(theCube, GL_COMPILE);
 100     glutSolidCube(4.0);
 101     glEndList();
 102
 103     }
 104
 105 UGL_LOCAL void createIcoToruses
 106     (
 107     int i
 108     )
 109     {
 110     glPushMatrix();
 111     glRotatef(angle,1.0,1.0,1.0);
 112     glCallList(theIco);
 113
 114     switch (i)
 115         {
 116         case 9 :
 117             glColor3f(1.0,0.0,0.0);
 118             break;
 119         case 0 :
 120             glColor3f(1.0,0.1,0.7);
 121             break;
 122         case 1 :
 123             glColor3f(1.0,0.0,1.0);
 124             break;
 125         case 2 :
 126             glColor3f(0.0,0.0,1.0);
 127             break;
 128         case 3 :
 129             glColor3f(0.0,0.5,1.0);
 130             break;
 131         case 4 :
 132             glColor3f(0.0,1.0,0.7);
 133             break;
 134         case 5 :
 135             glColor3f(0.0,1.0,0.0);
 136             break;
 137         case 6 :
 138             glColor3f(0.5,1.0,0.0);
 139             break;
 140         case 7 :
 141             glColor3f(1.0,1.0,0.0);
 142             break;
 143         case 8 :
 144             glColor3f(1.0,0.5,0.0);
 145             break;
 146         }
 147
 148     glRotatef(angle,1.0,1.0,1.0);
 149     glCallList(theTorus);
 150     glRotatef(-2*angle,1.0,1.0,1.0);
 151     glCallList(theTorus);
 152     glPopMatrix();
 153     }
 154
 155 UGL_LOCAL void drawGL (void)
 156     {
 157     int i;
 158
 159     if (color_on)
 160         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 161     else
 162         glClear(GL_DEPTH_BUFFER_BIT);
 163
 164     glPushMatrix();
 165
 166     if (chaos_on)
 167         glRotatef(angle,1.0,1.0,1.0);
 168
 169     glPushMatrix();
 170     glRotatef(angle,1.0,1.0,1.0);
 171     glColor3f(1.0,0.5,0.0);
 172     glCallList(theSphere);
 173     glColor3f(1.0,0.0,0.0);
 174     glCallList(theCube);
 175     glPopMatrix();
 176
 177     glRotatef(-angle,0.0,0.0,1.0);
 178     glPushMatrix();
 179     /* draw ten icosahedrons */
 180     for (i = 0; i < 10; i++)
 181         {
 182         glPushMatrix();
 183         glRotatef(36*i,0.0,0.0,1.0);
 184         glTranslatef(10.0,0.0,0.0);
 185         glRotatef(2*angle,0.0,1.0,0.0);
 186         glTranslatef(0.0,0.0,2.0);
 187
 188         createIcoToruses(i);
 189         glPopMatrix();
 190         }
 191     glPopMatrix();
 192
 193     glPopMatrix();
 194
 195     uglMesaSwapBuffers();
 196
 197     angle += 1.0;
 198
 199     }
 200
 201 UGL_LOCAL void echoUse(void)
 202     {
 203     printf("tIcoTorus keys:\n");
 204     printf("           c  Toggle color buffer clear\n");
 205     printf("       SPACE  Toggle chaos mode\n");
 206     printf("         ESC  Exit\n");
 207     }
 208
 209 UGL_LOCAL void readKey (UGL_WCHAR key)
 210     {
 211
 212     switch(key)
 213         {
 214         case 'c':
 215             color_on = !color_on;
 216             break;
 217         case UGL_UNI_SPACE:
 218             chaos_on = !chaos_on;
 219             break;
 220         case UGL_UNI_ESCAPE:
 221             stopWex = UGL_TRUE;
 222             break;
 223         }
 224     }
 225
 226 UGL_LOCAL void loopEvent(void)
 227     {
 228     UGL_EVENT event;
 229     UGL_INPUT_EVENT * pInputEvent;
 230
 231     UGL_FOREVER
 232         {
 233         if (uglEventGet (qId, &event, sizeof (event), UGL_NO_WAIT)
 234             != UGL_STATUS_Q_EMPTY)
 235             {
 236             pInputEvent = (UGL_INPUT_EVENT *)&event;
 237
 238             if (pInputEvent->header.type == UGL_EVENT_TYPE_KEYBOARD &&
 239                 pInputEvent->modifiers & UGL_KEYBOARD_KEYDOWN)
 240                 readKey(pInputEvent->type.keyboard.key);
 241             }
 242
 243         drawGL();
 244         if (stopWex)
 245             break;
 246         }
 247     }
 248
 249 void windMLIcoTorus (UGL_BOOL windMLMode);
 250
 251 void uglicotorus (void)
 252     {
 253     taskSpawn ("tIcoTorus", 210, VX_FP_TASK, 100000, (FUNCPTR)windMLIcoTorus,
 254                UGL_FALSE,1,2,3,4,5,6,7,8,9);
 255     }
 256
 257 void windMLIcoTorus (UGL_BOOL windMLMode)
 258     {
 259     GLsizei width, height;
 260     UGL_INPUT_DEVICE_ID keyboardDevId;
 261
 262     angle = 0.0;
 263     chaos_on = GL_TRUE;
 264     color_on = GL_TRUE;
 265
 266     uglInitialize ();
 267
 268     uglDriverFind (UGL_KEYBOARD_TYPE, 0,
 269                    (UGL_UINT32 *)&keyboardDevId);
 270
 271     if (uglDriverFind (UGL_EVENT_SERVICE_TYPE, 0,
 272                        (UGL_UINT32 *)&eventServiceId) == UGL_STATUS_OK)
 273         {
 274         qId = uglEventQCreate (eventServiceId, 100);
 275         }
 276     else
 277         {
 278         eventServiceId = UGL_NULL;
 279         }
 280
 281     /* Double buffering */
 282     if (windMLMode)
 283        umc = uglMesaCreateNewContext(UGL_MESA_DOUBLE
 284                                      | UGL_MESA_WINDML_EXCLUSIVE, NULL);
 285     else
 286        umc = uglMesaCreateNewContext(UGL_MESA_DOUBLE, NULL);
 287
 288     if (umc == NULL)
 289         {
 290         uglDeinitialize ();
 291         return;
 292         }
 293
 294     uglMesaMakeCurrentContext (umc, 0, 0, UGL_MESA_FULLSCREEN_WIDTH,
 295                                UGL_MESA_FULLSCREEN_HEIGHT);
 296
 297     uglMesaGetIntegerv(UGL_MESA_WIDTH, &width);
 298     uglMesaGetIntegerv(UGL_MESA_HEIGHT, &height);
 299
 300     initGL (width, height);
 301
 302     echoUse();
 303
 304     stopWex = UGL_FALSE;
 305     loopEvent();
 306
 307     if (eventServiceId != UGL_NULL)
 308         uglEventQDestroy (eventServiceId, qId);
 309
 310     uglMesaDestroyContext ();
 311     uglDeinitialize ();
 312
 313     return;
 314     }
 315