+++ /dev/null
-/*
- * 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- * Unpublished-- rights reserved under the copyright laws of the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.
- */
-
-/*
- * varray.c
- * This program demonstrates vertex arrays.
- */
-#include <GL/glut.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#ifdef GL_VERSION_1_1
-#define POINTER 1
-#define INTERLEAVED 2
-
-#define DRAWARRAY 1
-#define ARRAYELEMENT 2
-#define DRAWELEMENTS 3
-
-int setupMethod = POINTER;
-int derefMethod = DRAWARRAY;
-
-static void setupPointers(void)
-{
- static GLint vertices[] = {25, 25,
- 100, 325,
- 175, 25,
- 175, 325,
- 250, 25,
- 325, 325};
- static GLfloat colors[] = {1.0, 0.2, 0.2,
- 0.2, 0.2, 1.0,
- 0.8, 1.0, 0.2,
- 0.75, 0.75, 0.75,
- 0.35, 0.35, 0.35,
- 0.5, 0.5, 0.5};
-
- glEnableClientState (GL_VERTEX_ARRAY);
- glEnableClientState (GL_COLOR_ARRAY);
-
- glVertexPointer (2, GL_INT, 0, vertices);
- glColorPointer (3, GL_FLOAT, 0, colors);
-}
-
-static void setupInterleave(void)
-{
- static GLfloat intertwined[] =
- {1.0, 0.2, 1.0, 100.0, 100.0, 0.0,
- 1.0, 0.2, 0.2, 0.0, 200.0, 0.0,
- 1.0, 1.0, 0.2, 100.0, 300.0, 0.0,
- 0.2, 1.0, 0.2, 200.0, 300.0, 0.0,
- 0.2, 1.0, 1.0, 300.0, 200.0, 0.0,
- 0.2, 0.2, 1.0, 200.0, 100.0, 0.0};
-
- glInterleavedArrays (GL_C3F_V3F, 0, intertwined);
-}
-
-static void init(void)
-{
- glClearColor (0.0, 0.0, 0.0, 0.0);
- glShadeModel (GL_SMOOTH);
- setupPointers ();
-}
-
-static void display(void)
-{
- glClear (GL_COLOR_BUFFER_BIT);
-
- if (derefMethod == DRAWARRAY)
- glDrawArrays (GL_TRIANGLES, 0, 6);
- else if (derefMethod == ARRAYELEMENT) {
- glBegin (GL_TRIANGLES);
- glArrayElement (2);
- glArrayElement (3);
- glArrayElement (5);
- glEnd ();
- }
- else if (derefMethod == DRAWELEMENTS) {
- GLuint indices[4] = {0, 1, 3, 4};
-
- glDrawElements (GL_POLYGON, 4, GL_UNSIGNED_INT, indices);
- }
- glFlush ();
-}
-
-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);
-}
-
-/* ARGSUSED2 */
-static void mouse (int button, int state, int x, int y)
-{
- switch (button) {
- case GLUT_LEFT_BUTTON:
- if (state == GLUT_DOWN) {
- if (setupMethod == POINTER) {
- setupMethod = INTERLEAVED;
- setupInterleave();
- }
- else if (setupMethod == INTERLEAVED) {
- setupMethod = POINTER;
- setupPointers();
- }
- glutPostRedisplay();
- }
- break;
- case GLUT_MIDDLE_BUTTON:
- case GLUT_RIGHT_BUTTON:
- if (state == GLUT_DOWN) {
- if (derefMethod == DRAWARRAY)
- derefMethod = ARRAYELEMENT;
- else if (derefMethod == ARRAYELEMENT)
- derefMethod = DRAWELEMENTS;
- else if (derefMethod == DRAWELEMENTS)
- derefMethod = DRAWARRAY;
- glutPostRedisplay();
- }
- break;
- default:
- break;
- }
-}
-
-/* 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 (350, 350);
- glutInitWindowPosition (100, 100);
- glutCreateWindow (argv[0]);
- init ();
- glutDisplayFunc(display);
- glutReshapeFunc(reshape);
- glutMouseFunc(mouse);
- glutKeyboardFunc (keyboard);
- glutMainLoop();
- return 0;
-}
-#else
-int main(int argc, char** argv)
-{
- fprintf (stderr, "This program demonstrates a feature which is not in OpenGL Version 1.0.\n");
- fprintf (stderr, "If your implementation of OpenGL Version 1.0 has the right extensions,\n");
- fprintf (stderr, "you may be able to modify this program to make it run.\n");
- return 0;
-}
-#endif
projects / mesa.git / blobdiff