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