summaryrefslogtreecommitdiff
path: root/progs/redbook/multitex.c
diff options
context:
space:
mode:
Diffstat (limited to 'progs/redbook/multitex.c')
-rw-r--r--progs/redbook/multitex.c177
1 files changed, 0 insertions, 177 deletions
diff --git a/progs/redbook/multitex.c b/progs/redbook/multitex.c
deleted file mode 100644
index 118f0ea77e..0000000000
--- a/progs/redbook/multitex.c
+++ /dev/null
@@ -1,177 +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 Unpublished - rights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.
- */
-
-/* multitex.c
- */
-#include <GL/glew.h>
-#include <GL/glut.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-
-static GLubyte texels0[32][32][4];
-static GLubyte texels1[16][16][4];
-
-static void makeCheckImages(void)
-{
- int i, j;
-
- for (i = 0; i < 32; i++) {
- for (j = 0; j < 32; j++) {
- texels0[i][j][0] = (GLubyte) (255 * i / 31);
- texels0[i][j][1] = (GLubyte) (255 * j / 31);
- texels0[i][j][2] = (GLubyte) (i*j)/255;
- texels0[i][j][3] = (GLubyte) 255;
- }
- }
-
- for (i = 0; i < 16; i++) {
- for (j = 0; j < 16; j++) {
- texels1[i][j][0] = (GLubyte) 255;
- texels1[i][j][1] = (GLubyte) (255 * i / 15);
- texels1[i][j][2] = (GLubyte) (255 * j / 15);
- texels1[i][j][3] = (GLubyte) 255;
- }
- }
-}
-
-static void init(void)
-{
- GLuint texNames[2];
-
- glClearColor (0.0, 0.0, 0.0, 0.0);
- glShadeModel(GL_FLAT);
- glEnable(GL_DEPTH_TEST);
-
- makeCheckImages();
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- glGenTextures(2, texNames);
- glBindTexture(GL_TEXTURE_2D, texNames[0]);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA,
- GL_UNSIGNED_BYTE, texels0);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
- GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- glBindTexture(GL_TEXTURE_2D, texNames[1]);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0, GL_RGBA,
- GL_UNSIGNED_BYTE, texels1);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
- /* Use the two texture objects to define two texture units
- * for use in multitexturing */
- glActiveTextureARB (GL_TEXTURE0_ARB);
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, texNames[0]);
- glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
- glMatrixMode (GL_TEXTURE);
- glLoadIdentity();
- glTranslatef(0.5f, 0.5f, 0.0f);
- glRotatef(45.0f, 0.0f, 0.0f, 1.0f);
- glTranslatef(-0.5f, -0.5f, 0.0f);
- glMatrixMode (GL_MODELVIEW);
- glActiveTextureARB (GL_TEXTURE1_ARB);
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, texNames[1]);
- glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-}
-
-static void display(void)
-{
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glBegin(GL_TRIANGLES);
- glMultiTexCoord2fARB (GL_TEXTURE0_ARB, 0.0, 0.0);
- glMultiTexCoord2fARB (GL_TEXTURE1_ARB, 1.0, 0.0);
- glVertex2f(0.0, 0.0);
- glMultiTexCoord2fARB (GL_TEXTURE0_ARB, 0.5, 1.0);
- glMultiTexCoord2fARB (GL_TEXTURE1_ARB, 0.5, 0.0);
- glVertex2f(50.0, 100.0);
- glMultiTexCoord2fARB (GL_TEXTURE0_ARB, 1.0, 0.0);
- glMultiTexCoord2fARB (GL_TEXTURE1_ARB, 1.0, 1.0);
- glVertex2f(100.0, 0.0);
- glEnd();
- glFlush();
-}
-
-static void reshape(int w, int h)
-{
- glViewport(0, 0, (GLsizei) w, (GLsizei) h);
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- if (w <= h)
- gluOrtho2D(0.0, 100.0, 0.0, 100.0 * (GLdouble)h/(GLdouble)w);
- else
- gluOrtho2D(0.0, 100.0 * (GLdouble)w/(GLdouble)h, 0.0, 100.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-}
-
-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 | GLUT_DEPTH);
- glutInitWindowSize(250, 250);
- glutInitWindowPosition(100, 100);
- glutCreateWindow(argv[0]);
- glewInit();
- init();
- glutReshapeFunc(reshape);
- glutDisplayFunc(display);
- glutKeyboardFunc (keyboard);
- glutMainLoop();
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-30 03:17:39 +0000