drawf.c
上传用户:xk288cn
上传日期:2007-05-28
资源大小:4876k
文件大小:3k
- /*
- * 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- * Unpublished-- rights reserved under the copyright laws of the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.
- */
- /*
- * drawf.c
- * Draws the bitmapped letter F on the screen (several times).
- * This demonstrates use of the glBitmap() call.
- */
- #include <GL/glut.h>
- #include <stdlib.h>
- GLubyte rasters[24] = {
- 0xc0, 0x00, 0xc0, 0x00, 0xc0, 0x00, 0xc0, 0x00, 0xc0, 0x00,
- 0xff, 0x00, 0xff, 0x00, 0xc0, 0x00, 0xc0, 0x00, 0xc0, 0x00,
- 0xff, 0xc0, 0xff, 0xc0};
- void init(void)
- {
- glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
- glClearColor (0.0, 0.0, 0.0, 0.0);
- }
- void display(void)
- {
- glClear(GL_COLOR_BUFFER_BIT);
- glColor3f (1.0, 1.0, 1.0);
- glRasterPos2i (20, 20);
- glBitmap (10, 12, 0.0, 0.0, 11.0, 0.0, rasters);
- glBitmap (10, 12, 0.0, 0.0, 11.0, 0.0, rasters);
- glBitmap (10, 12, 0.0, 0.0, 11.0, 0.0, rasters);
- glFlush();
- }
- void reshape(int w, int h)
- {
- glViewport(0, 0, (GLsizei) w, (GLsizei) h);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho (0, w, 0, h, -1.0, 1.0);
- glMatrixMode(GL_MODELVIEW);
- }
- /* ARGSUSED1 */
- void keyboard(unsigned char key, int x, int y)
- {
- switch (key) {
- case 27:
- exit(0);
- }
- }
- /* 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(100, 100);
- glutInitWindowPosition(100, 100);
- glutCreateWindow(argv[0]);
- init();
- glutReshapeFunc(reshape);
- glutKeyboardFunc(keyboard);
- glutDisplayFunc(display);
- glutMainLoop();
- return 0;
- }