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-rw-r--r--progs/redbook/unproject.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/progs/redbook/unproject.c b/progs/redbook/unproject.c
deleted file mode 100644
index 6d1c7dbede..0000000000
--- a/progs/redbook/unproject.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * 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- * Unpublished-- rights reserved under the copyright laws of the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.
- */
-
-/*
- * unproject.c
- * When the left mouse button is pressed, this program
- * reads the mouse position and determines two 3D points
- * from which it was transformed. Very little is displayed.
- */
-#include <GL/glut.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-static void display(void)
-{
- glClear(GL_COLOR_BUFFER_BIT);
- glFlush();
-}
-
-/* Change these values for a different transformation */
-static void reshape(int w, int h)
-{
- glViewport (0, 0, (GLsizei) w, (GLsizei) h);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective (45.0, (GLfloat) w/(GLfloat) h, 1.0, 100.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-}
-
-static void mouse(int button, int state, int x, int y)
-{
- GLint viewport[4];
- GLdouble mvmatrix[16], projmatrix[16];
- GLint realy; /* OpenGL y coordinate position */
- GLdouble wx, wy, wz; /* returned world x, y, z coords */
-
- switch (button) {
- case GLUT_LEFT_BUTTON:
- if (state == GLUT_DOWN) {
- glGetIntegerv (GL_VIEWPORT, viewport);
- glGetDoublev (GL_MODELVIEW_MATRIX, mvmatrix);
- glGetDoublev (GL_PROJECTION_MATRIX, projmatrix);
-/* note viewport[3] is height of window in pixels */
- realy = viewport[3] - (GLint) y - 1;
- printf ("Coordinates at cursor are (%4d, %4d)\n", x, realy);
- gluUnProject ((GLdouble) x, (GLdouble) realy, 0.0,
- mvmatrix, projmatrix, viewport, &wx, &wy, &wz);
- printf ("World coords at z=0.0 are (%f, %f, %f)\n",
- wx, wy, wz);
- gluUnProject ((GLdouble) x, (GLdouble) realy, 1.0,
- mvmatrix, projmatrix, viewport, &wx, &wy, &wz);
- printf ("World coords at z=1.0 are (%f, %f, %f)\n",
- wx, wy, wz);
- }
- break;
- case GLUT_RIGHT_BUTTON:
- if (state == GLUT_DOWN)
- exit(0);
- break;
- default:
- break;
- }
-}
-
-/* ARGSUSED1 */
-static void keyboard(unsigned char key, int x, int y)
-{
- switch (key) {
- case 27:
- exit(0);
- break;
- }
-}
-
-/*
- * Open window, register input callback functions
- */
-int main(int argc, char** argv)
-{
- glutInit(&argc, argv);
- glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
- glutInitWindowSize (500, 500);
- glutInitWindowPosition (100, 100);
- glutCreateWindow (argv[0]);
- glutDisplayFunc(display);
- glutReshapeFunc(reshape);
- glutKeyboardFunc (keyboard);
- glutMouseFunc(mouse);
- glutMainLoop();
- return 0;
-}