diff options
author | Eric Anholt <eric@anholt.net> | 2010-05-21 09:32:38 -0700 |
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committer | Eric Anholt <eric@anholt.net> | 2010-05-21 12:20:39 -0700 |
commit | 68fc4b415e322f6744299e39864fbc377c6eff74 (patch) | |
tree | 4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/redbook/tess.c | |
parent | e4f4489e3fc0b36d72821b55794fb843b2b7fa5f (diff) |
Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.
The remaining programs are ones I've had difficulty finding a build
environment for to make the build system or are unit tests that should
probably live next to their code instead. Hopefully people can bring
over the build for remaining pieces they care about.
Diffstat (limited to 'progs/redbook/tess.c')
-rw-r--r-- | progs/redbook/tess.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/progs/redbook/tess.c b/progs/redbook/tess.c deleted file mode 100644 index 0bf8a8eb98..0000000000 --- a/progs/redbook/tess.c +++ /dev/null @@ -1,241 +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. - */ - -/* - * tess.c - * This program demonstrates polygon tessellation. - * Two tesselated objects are drawn. The first is a - * rectangle with a triangular hole. The second is a - * smooth shaded, self-intersecting star. - * - * Note the exterior rectangle is drawn with its vertices - * in counter-clockwise order, but its interior clockwise. - * Note the combineCallback is needed for the self-intersecting - * star. Also note that removing the TessProperty for the - * star will make the interior unshaded (WINDING_ODD). - */ -#include <GL/glut.h> -#include <stdlib.h> -#include <stdio.h> - -#ifdef GLU_VERSION_1_2 - -/* Win32 calling conventions. */ -#ifndef CALLBACK -#define CALLBACK -#endif - -GLuint startList; - -static void display (void) { - glClear(GL_COLOR_BUFFER_BIT); - glColor3f(1.0, 1.0, 1.0); - glCallList(startList); - glCallList(startList + 1); - glFlush(); -} - -static void CALLBACK beginCallback(GLenum which) -{ - glBegin(which); -} - -static void CALLBACK errorCallback(GLenum errorCode) -{ - const GLubyte *estring; - - estring = gluErrorString(errorCode); - fprintf(stderr, "Tessellation Error: %s\n", (char *) estring); - exit(0); -} - -static void CALLBACK endCallback(void) -{ - glEnd(); -} - -static void CALLBACK vertexCallback(GLvoid *vertex) -{ - const GLdouble *pointer; - - pointer = (GLdouble *) vertex; - glColor3dv(pointer+3); - glVertex3dv(pointer); -} - -/* combineCallback is used to create a new vertex when edges - * intersect. coordinate location is trivial to calculate, - * but weight[4] may be used to average color, normal, or texture - * coordinate data. In this program, color is weighted. - */ -static void CALLBACK combineCallback(GLdouble coords[3], - GLdouble *vertex_data[4], - GLfloat weight[4], GLdouble **dataOut ) -{ - GLdouble *vertex; - int i; - - vertex = (GLdouble *) malloc(6 * sizeof(GLdouble)); - - vertex[0] = coords[0]; - vertex[1] = coords[1]; - vertex[2] = coords[2]; - for (i = 3; i < 6; i++) - vertex[i] = weight[0] * vertex_data[0][i] - + weight[1] * vertex_data[1][i] - + weight[2] * vertex_data[2][i] - + weight[3] * vertex_data[3][i]; - *dataOut = vertex; -} - -static void init (void) -{ - GLUtesselator *tobj; - GLdouble rect[4][3] = {{50.0, 50.0, 0.0}, - {200.0, 50.0, 0.0}, - {200.0, 200.0, 0.0}, - {50.0, 200.0, 0.0}}; - GLdouble tri[3][3] = {{75.0, 75.0, 0.0}, - {125.0, 175.0, 0.0}, - {175.0, 75.0, 0.0}}; - GLdouble star[5][6] = {{250.0, 50.0, 0.0, 1.0, 0.0, 1.0}, - {325.0, 200.0, 0.0, 1.0, 1.0, 0.0}, - {400.0, 50.0, 0.0, 0.0, 1.0, 1.0}, - {250.0, 150.0, 0.0, 1.0, 0.0, 0.0}, - {400.0, 150.0, 0.0, 0.0, 1.0, 0.0}}; - - glClearColor(0.0, 0.0, 0.0, 0.0); - - startList = glGenLists(2); - - tobj = gluNewTess(); - gluTessCallback(tobj, GLU_TESS_VERTEX, - (GLvoid (CALLBACK*) ()) &glVertex3dv); - gluTessCallback(tobj, GLU_TESS_BEGIN, - (GLvoid (CALLBACK*) ()) &beginCallback); - gluTessCallback(tobj, GLU_TESS_END, - (GLvoid (CALLBACK*) ()) &endCallback); - gluTessCallback(tobj, GLU_TESS_ERROR, - (GLvoid (CALLBACK*) ()) &errorCallback); - - /* rectangle with triangular hole inside */ - glNewList(startList, GL_COMPILE); - glShadeModel(GL_FLAT); - gluTessBeginPolygon(tobj, NULL); - gluTessBeginContour(tobj); - gluTessVertex(tobj, rect[0], rect[0]); - gluTessVertex(tobj, rect[1], rect[1]); - gluTessVertex(tobj, rect[2], rect[2]); - gluTessVertex(tobj, rect[3], rect[3]); - gluTessEndContour(tobj); - gluTessBeginContour(tobj); - gluTessVertex(tobj, tri[0], tri[0]); - gluTessVertex(tobj, tri[1], tri[1]); - gluTessVertex(tobj, tri[2], tri[2]); - gluTessEndContour(tobj); - gluTessEndPolygon(tobj); - glEndList(); - - gluTessCallback(tobj, GLU_TESS_VERTEX, - (GLvoid (CALLBACK*) ()) &vertexCallback); - gluTessCallback(tobj, GLU_TESS_BEGIN, - (GLvoid (CALLBACK*) ()) &beginCallback); - gluTessCallback(tobj, GLU_TESS_END, - (GLvoid (CALLBACK*) ()) &endCallback); - gluTessCallback(tobj, GLU_TESS_ERROR, - (GLvoid (CALLBACK*) ()) &errorCallback); - gluTessCallback(tobj, GLU_TESS_COMBINE, - (GLvoid (CALLBACK*) ()) &combineCallback); - - /* smooth shaded, self-intersecting star */ - glNewList(startList + 1, GL_COMPILE); - glShadeModel(GL_SMOOTH); - gluTessProperty(tobj, GLU_TESS_WINDING_RULE, - GLU_TESS_WINDING_POSITIVE); - gluTessBeginPolygon(tobj, NULL); - gluTessBeginContour(tobj); - gluTessVertex(tobj, star[0], star[0]); - gluTessVertex(tobj, star[1], star[1]); - gluTessVertex(tobj, star[2], star[2]); - gluTessVertex(tobj, star[3], star[3]); - gluTessVertex(tobj, star[4], star[4]); - gluTessEndContour(tobj); - gluTessEndPolygon(tobj); - glEndList(); - gluDeleteTess(tobj); -} - -static void reshape (int w, int h) -{ - glViewport(0, 0, (GLsizei) w, (GLsizei) h); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluOrtho2D(0.0, (GLdouble) w, 0.0, (GLdouble) h); -} - -/* ARGSUSED1 */ -static void keyboard(unsigned char key, int x, int y) -{ - switch (key) { - case 27: - exit(0); - break; - } -} - -int main(int argc, char** argv) -{ - glutInit(&argc, argv); - glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); - glutInitWindowSize(500, 500); - glutCreateWindow(argv[0]); - init(); - glutDisplayFunc(display); - glutReshapeFunc(reshape); - glutKeyboardFunc(keyboard); - glutMainLoop(); - return 0; -} - -#else -int main(int argc, char** argv) -{ - fprintf (stderr, "This program demonstrates the new tesselator API in GLU 1.2.\n"); - fprintf (stderr, "Your GLU library does not support this new interface, sorry.\n"); - return 0; -} -#endif |