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Diffstat (limited to 'dist/Mesa/progs/redbook/surfpoints.c')
-rw-r--r-- | dist/Mesa/progs/redbook/surfpoints.c | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/dist/Mesa/progs/redbook/surfpoints.c b/dist/Mesa/progs/redbook/surfpoints.c deleted file mode 100644 index 094f0dada..000000000 --- a/dist/Mesa/progs/redbook/surfpoints.c +++ /dev/null @@ -1,280 +0,0 @@ -/* - * Copyright (c) 1993-2003, 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 Unpublished - rights - * reserved under the copyright laws of the United States.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. - * 1500 Crittenden Lane - * Mountain View, CA 94043 - * United State of America - * - * OpenGL(R) is a registered trademark of Silicon Graphics, Inc. - */ - -/* - * surfpoints.c - * This program is a modification of the earlier surface.c - * program. The vertex data are not directly rendered, - * but are instead passed to the callback function. - * The values of the tessellated vertices are printed - * out there. - * - * This program draws a NURBS surface in the shape of a - * symmetrical hill. The 'c' keyboard key allows you to - * toggle the visibility of the control points themselves. - * Note that some of the control points are hidden by the - * surface itself. - */ -#include <GL/glut.h> -#include <stdlib.h> -#include <stdio.h> - -#ifdef GLU_VERSION_1_3 - -#ifndef CALLBACK -#define CALLBACK -#endif - -GLfloat ctlpoints[4][4][3]; -int showPoints = 0; - -GLUnurbsObj *theNurb; - -/* - * Initializes the control points of the surface to a small hill. - * The control points range from -3 to +3 in x, y, and z - */ -static void init_surface(void) -{ - int u, v; - for (u = 0; u < 4; u++) { - for (v = 0; v < 4; v++) { - ctlpoints[u][v][0] = 2.0*((GLfloat)u - 1.5); - ctlpoints[u][v][1] = 2.0*((GLfloat)v - 1.5); - - if ( (u == 1 || u == 2) && (v == 1 || v == 2)) - ctlpoints[u][v][2] = 3.0; - else - ctlpoints[u][v][2] = -3.0; - } - } -} - -static void CALLBACK nurbsError(GLenum errorCode) -{ - const GLubyte *estring; - - estring = gluErrorString(errorCode); - fprintf (stderr, "Nurbs Error: %s\n", estring); - exit (0); -} - -static void CALLBACK beginCallback(GLenum whichType) -{ - glBegin (whichType); /* resubmit rendering directive */ - printf ("glBegin("); - switch (whichType) { /* print diagnostic message */ - case GL_LINES: - printf ("GL_LINES)\n"); - break; - case GL_LINE_LOOP: - printf ("GL_LINE_LOOP)\n"); - break; - case GL_LINE_STRIP: - printf ("GL_LINE_STRIP)\n"); - break; - case GL_TRIANGLES: - printf ("GL_TRIANGLES)\n"); - break; - case GL_TRIANGLE_STRIP: - printf ("GL_TRIANGLE_STRIP)\n"); - break; - case GL_TRIANGLE_FAN: - printf ("GL_TRIANGLE_FAN)\n"); - break; - case GL_QUADS: - printf ("GL_QUADS)\n"); - break; - case GL_QUAD_STRIP: - printf ("GL_QUAD_STRIP)\n"); - break; - case GL_POLYGON: - printf ("GL_POLYGON)\n"); - break; - default: - break; - } -} - -static void CALLBACK endCallback() -{ - glEnd(); /* resubmit rendering directive */ - printf ("glEnd()\n"); -} - -static void CALLBACK vertexCallback(GLfloat *vertex) -{ - glVertex3fv(vertex); /* resubmit rendering directive */ - printf ("glVertex3f (%5.3f, %5.3f, %5.3f)\n", - vertex[0], vertex[1], vertex[2]); -} - -static void CALLBACK normalCallback(GLfloat *normal) -{ - glNormal3fv(normal); /* resubmit rendering directive */ - printf ("glNormal3f (%5.3f, %5.3f, %5.3f)\n", - normal[0], normal[1], normal[2]); -} - -/* Initialize material property and depth buffer. - */ -static void init(void) -{ - GLfloat mat_diffuse[] = { 0.7, 0.7, 0.7, 1.0 }; - GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 }; - GLfloat mat_shininess[] = { 100.0 }; - - glClearColor (0.0, 0.0, 0.0, 0.0); - glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); - glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); - glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); - - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - glEnable(GL_DEPTH_TEST); - glEnable(GL_AUTO_NORMAL); - glEnable(GL_NORMALIZE); - - init_surface(); - - theNurb = gluNewNurbsRenderer(); - gluNurbsProperty(theNurb, GLU_NURBS_MODE, - GLU_NURBS_TESSELLATOR); - gluNurbsProperty(theNurb, GLU_SAMPLING_TOLERANCE, 25.0); - gluNurbsProperty(theNurb, GLU_DISPLAY_MODE, GLU_FILL); - gluNurbsCallback(theNurb, GLU_ERROR, nurbsError); - gluNurbsCallback(theNurb, GLU_NURBS_BEGIN, beginCallback); - gluNurbsCallback(theNurb, GLU_NURBS_VERTEX, vertexCallback); - gluNurbsCallback(theNurb, GLU_NURBS_NORMAL, normalCallback); - gluNurbsCallback(theNurb, GLU_NURBS_END, endCallback); - -} - -static void display(void) -{ - GLfloat knots[8] = {0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0}; - int i, j; - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glPushMatrix(); - glRotatef(330.0, 1.,0.,0.); - glScalef (0.5, 0.5, 0.5); - - gluBeginSurface(theNurb); - gluNurbsSurface(theNurb, - 8, knots, 8, knots, - 4 * 3, 3, &ctlpoints[0][0][0], - 4, 4, GL_MAP2_VERTEX_3); - gluEndSurface(theNurb); - - if (showPoints) { - glPointSize(5.0); - glDisable(GL_LIGHTING); - glColor3f(1.0, 1.0, 0.0); - glBegin(GL_POINTS); - for (i = 0; i < 4; i++) { - for (j = 0; j < 4; j++) { - glVertex3f(ctlpoints[i][j][0], - ctlpoints[i][j][1], ctlpoints[i][j][2]); - } - } - glEnd(); - glEnable(GL_LIGHTING); - } - glPopMatrix(); - glFlush(); -} - -static void reshape(int w, int h) -{ - glViewport(0, 0, (GLsizei) w, (GLsizei) h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective (45.0, (GLdouble)w/(GLdouble)h, 3.0, 8.0); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef (0.0, 0.0, -5.0); -} - -static void keyboard(unsigned char key, int x, int y) -{ - switch (key) { - case 'c': - case 'C': - showPoints = !showPoints; - glutPostRedisplay(); - break; - case 27: - exit(0); - break; - default: - break; - } -} - -int main(int argc, char** argv) -{ - glutInit(&argc, argv); - glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH); - glutInitWindowSize (500, 500); - glutInitWindowPosition (100, 100); - glutCreateWindow(argv[0]); - init(); - glutReshapeFunc(reshape); - glutDisplayFunc(display); - glutKeyboardFunc (keyboard); - glutMainLoop(); - return 0; -} - -#else -int main(int argc, char** argv) -{ - fprintf (stderr, "This program demonstrates a feature which is introduced in the\n"); - fprintf (stderr, "OpenGL Utility Library (GLU) Version 1.3.\n"); - fprintf (stderr, "If your implementation of GLU has the right extensions,\n"); - fprintf (stderr, "you may be able to modify this program to make it run.\n"); - return 0; -} -#endif - |