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+/* uglicotorus.c - WindML/Mesa example program */
+
+/* Copyright (C) 2001 by Wind River Systems, Inc */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * The MIT License
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+modification history
+--------------------
+01a,jun01,sra
+*/
+
+#include <stdio.h>
+#include <math.h>
+
+#include <ugl/uglevent.h>
+#include <ugl/uglinput.h>
+#include <ugl/uglucode.h>
+
+#include <GL/uglmesa.h>
+#include <GL/glu.h>
+
+/* Need GLUT_SHAPES */
+
+#include <GL/uglglutshapes.h>
+
+UGL_LOCAL UGL_EVENT_SERVICE_ID eventServiceId;
+UGL_LOCAL UGL_EVENT_Q_ID qId;
+UGL_LOCAL UGL_MESA_CONTEXT umc;
+UGL_LOCAL volatile UGL_BOOL stopWex;
+
+UGL_LOCAL GLfloat angle;
+UGL_LOCAL GLboolean chaos_on;
+UGL_LOCAL GLboolean color_on;
+
+UGL_LOCAL GLuint theIco, theTorus, theSphere, theCube;
+
+UGL_LOCAL void initGL
+ (
+ int w,
+ int h
+ )
+ {
+ glViewport(0,0,(GLsizei)w,(GLsizei)h);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ gluPerspective(60.0,(GLfloat)w/(GLfloat)h,1.0,60.0);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ gluLookAt(0.0,0.0,25.0,0.0,0.0,0.0,0.0,1.0,0.0);
+
+ glClearColor(0.0,0.0,0.0,0.0);
+
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+
+ glEnable(GL_COLOR_MATERIAL);
+
+ theIco = glGenLists(1);
+ glNewList(theIco, GL_COMPILE);
+ glutSolidIcosahedron();
+ glEndList();
+
+ theTorus = glGenLists(1);
+ glNewList(theTorus, GL_COMPILE);
+ glutSolidTorus(0.2,1.0,10,10);
+ glEndList();
+
+ theSphere = glGenLists(1);
+ glNewList(theSphere, GL_COMPILE);
+ glutSolidSphere(2.5,20,20);
+ glEndList();
+
+ theCube = glGenLists(1);
+ glNewList(theCube, GL_COMPILE);
+ glutSolidCube(4.0);
+ glEndList();
+
+ }
+
+UGL_LOCAL void createIcoToruses
+ (
+ int i
+ )
+ {
+ glPushMatrix();
+ glRotatef(angle,1.0,1.0,1.0);
+ glCallList(theIco);
+
+ switch (i)
+ {
+ case 9 :
+ glColor3f(1.0,0.0,0.0);
+ break;
+ case 0 :
+ glColor3f(1.0,0.1,0.7);
+ break;
+ case 1 :
+ glColor3f(1.0,0.0,1.0);
+ break;
+ case 2 :
+ glColor3f(0.0,0.0,1.0);
+ break;
+ case 3 :
+ glColor3f(0.0,0.5,1.0);
+ break;
+ case 4 :
+ glColor3f(0.0,1.0,0.7);
+ break;
+ case 5 :
+ glColor3f(0.0,1.0,0.0);
+ break;
+ case 6 :
+ glColor3f(0.5,1.0,0.0);
+ break;
+ case 7 :
+ glColor3f(1.0,1.0,0.0);
+ break;
+ case 8 :
+ glColor3f(1.0,0.5,0.0);
+ break;
+ }
+
+ glRotatef(angle,1.0,1.0,1.0);
+ glCallList(theTorus);
+ glRotatef(-2*angle,1.0,1.0,1.0);
+ glCallList(theTorus);
+ glPopMatrix();
+ }
+
+UGL_LOCAL void drawGL (void)
+ {
+ int i;
+
+ if (color_on)
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ else
+ glClear(GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+
+ if (chaos_on)
+ glRotatef(angle,1.0,1.0,1.0);
+
+ glPushMatrix();
+ glRotatef(angle,1.0,1.0,1.0);
+ glColor3f(1.0,0.5,0.0);
+ glCallList(theSphere);
+ glColor3f(1.0,0.0,0.0);
+ glCallList(theCube);
+ glPopMatrix();
+
+ glRotatef(-angle,0.0,0.0,1.0);
+ glPushMatrix();
+ /* draw ten icosahedrons */
+ for (i = 0; i < 10; i++)
+ {
+ glPushMatrix();
+ glRotatef(36*i,0.0,0.0,1.0);
+ glTranslatef(10.0,0.0,0.0);
+ glRotatef(2*angle,0.0,1.0,0.0);
+ glTranslatef(0.0,0.0,2.0);
+
+ createIcoToruses(i);
+ glPopMatrix();
+ }
+ glPopMatrix();
+
+ glPopMatrix();
+
+ uglMesaSwapBuffers();
+
+ angle += 1.0;
+
+ }
+
+UGL_LOCAL void echoUse(void)
+ {
+ printf("tIcoTorus keys:\n");
+ printf(" c Toggle color buffer clear\n");
+ printf(" SPACE Toggle chaos mode\n");
+ printf(" ESC Exit\n");
+ }
+
+UGL_LOCAL void readKey (UGL_WCHAR key)
+ {
+
+ switch(key)
+ {
+ case 'c':
+ color_on = !color_on;
+ break;
+ case UGL_UNI_SPACE:
+ chaos_on = !chaos_on;
+ break;
+ case UGL_UNI_ESCAPE:
+ stopWex = UGL_TRUE;
+ break;
+ }
+ }
+
+UGL_LOCAL void loopEvent(void)
+ {
+ UGL_EVENT event;
+ UGL_INPUT_EVENT * pInputEvent;
+
+ UGL_FOREVER
+ {
+ if (uglEventGet (qId, &event, sizeof (event), UGL_NO_WAIT)
+ != UGL_STATUS_Q_EMPTY)
+ {
+ pInputEvent = (UGL_INPUT_EVENT *)&event;
+
+ if (pInputEvent->header.type == UGL_EVENT_TYPE_KEYBOARD &&
+ pInputEvent->modifiers & UGL_KEYBOARD_KEYDOWN)
+ readKey(pInputEvent->type.keyboard.key);
+ }
+
+ drawGL();
+ if (stopWex)
+ break;
+ }
+ }
+
+void windMLIcoTorus (void);
+
+void uglicotorus (void)
+ {
+ taskSpawn ("tIcoTorus", 210, VX_FP_TASK, 100000, (FUNCPTR)windMLIcoTorus,
+ 0,1,2,3,4,5,6,7,8,9);
+ }
+
+void windMLIcoTorus (void)
+ {
+ GLsizei width, height;
+ UGL_INPUT_DEVICE_ID keyboardDevId;
+
+ angle = 0.0;
+ chaos_on = GL_TRUE;
+ color_on = GL_TRUE;
+
+ uglInitialize ();
+
+ uglDriverFind (UGL_KEYBOARD_TYPE, 0,
+ (UGL_UINT32 *)&keyboardDevId);
+
+ if (uglDriverFind (UGL_EVENT_SERVICE_TYPE, 0,
+ (UGL_UINT32 *)&eventServiceId) == UGL_STATUS_OK)
+ {
+ qId = uglEventQCreate (eventServiceId, 100);
+ }
+ else
+ {
+ eventServiceId = UGL_NULL;
+ }
+
+ /* Double buffering */
+ umc = uglMesaCreateNewContext (UGL_MESA_DOUBLE, NULL);
+
+ if (umc == NULL)
+ {
+ uglDeinitialize ();
+ return;
+ }
+
+ uglMesaMakeCurrentContext (umc, 0, 0, UGL_MESA_FULLSCREEN_WIDTH,
+ UGL_MESA_FULLSCREEN_HEIGHT);
+
+ uglMesaGetIntegerv(UGL_MESA_WIDTH, &width);
+ uglMesaGetIntegerv(UGL_MESA_HEIGHT, &height);
+
+ initGL (width, height);
+
+ echoUse();
+
+ stopWex = UGL_FALSE;
+ loopEvent();
+
+ if (eventServiceId != UGL_NULL)
+ uglEventQDestroy (eventServiceId, qId);
+
+ uglMesaDestroyContext ();
+ uglDeinitialize ();
+
+ return;
+ }
+