list.c
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上传日期:2007-05-28
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文件大小:4k
- /*
- * Copyright (c) 1993-1997, Silicon Graphics, Inc.
- * ALL RIGHTS RESERVED
- * Permission to use, copy, modify, and distribute this software for
- * any purpose and without fee is hereby granted, provided that the above
- * copyright notice appear in all copies and that both the copyright notice
- * and this permission notice appear in supporting documentation, and that
- * the name of Silicon Graphics, Inc. not be used in advertising
- * or publicity pertaining to distribution of the software without specific,
- * written prior permission.
- *
- * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
- * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
- * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
- * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
- * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
- * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
- * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
- * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
- * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
- * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * US Government Users Restricted Rights
- * Use, duplication, or disclosure by the Government is subject to
- * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
- * (c)(1)(ii) of the Rights in Technical Data and Computer Software
- * clause at DFARS 252.227-7013 and/or in similar or successor
- * clauses in the FAR or the DOD or NASA FAR Supplement.
- * Unpublished-- rights reserved under the copyright laws of the
- * United States. Contractor/manufacturer is Silicon Graphics,
- * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
- *
- * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
- */
- /*
- * list.c
- * This program demonstrates how to make and execute a
- * display list. Note that attributes, such as current
- * color and matrix, are changed.
- */
- #include <GL/glut.h>
- #include <stdlib.h>
- GLuint listName;
- static void init (void)
- {
- listName = glGenLists (1);
- glNewList (listName, GL_COMPILE);
- glColor3f (1.0, 0.0, 0.0); /* current color red */
- glBegin (GL_TRIANGLES);
- glVertex2f (0.0, 0.0);
- glVertex2f (1.0, 0.0);
- glVertex2f (0.0, 1.0);
- glEnd ();
- glTranslatef (1.5, 0.0, 0.0); /* move position */
- glEndList ();
- glShadeModel (GL_FLAT);
- }
- static void drawLine (void)
- {
- glBegin (GL_LINES);
- glVertex2f (0.0, 0.5);
- glVertex2f (15.0, 0.5);
- glEnd ();
- }
- void display(void)
- {
- GLuint i;
- glClear (GL_COLOR_BUFFER_BIT);
- glColor3f (0.0, 1.0, 0.0); /* current color green */
- for (i = 0; i < 10; i++) /* draw 10 triangles */
- glCallList (listName);
- drawLine (); /* is this line green? NO! */
- /* where is the line drawn? */
- glFlush ();
- }
- void reshape(int w, int h)
- {
- glViewport(0, 0, w, h);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- if (w <= h)
- gluOrtho2D (0.0, 2.0, -0.5 * (GLfloat) h/(GLfloat) w,
- 1.5 * (GLfloat) h/(GLfloat) w);
- else
- gluOrtho2D (0.0, 2.0 * (GLfloat) w/(GLfloat) h, -0.5, 1.5);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- }
- /* ARGSUSED1 */
- void keyboard(unsigned char key, int x, int y)
- {
- switch (key) {
- case 27:
- exit(0);
- break;
- }
- }
- /* Main Loop
- * Open window with initial window size, title bar,
- * RGBA display mode, and handle input events.
- */
- int main(int argc, char** argv)
- {
- glutInit(&argc, argv);
- glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
- glutInitWindowSize(650, 50);
- glutCreateWindow(argv[0]);
- init ();
- glutReshapeFunc (reshape);
- glutDisplayFunc (display);
- glutKeyboardFunc (keyboard);
- glutMainLoop();
- return 0;
- }