Hi all,
I'm reading the OpenGL Programming Guide, latest edition. I've been able
to check that after compiling OpenGL code and running it with GDB 6.0,
an error will arise. In particular, select any OpenGL program from the
book. Try the following:
----------------------------------
/*wrap.c*/
/*
* Copyright (c) 1993-1999, 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* Unpublished-- rights reserved under the copyright laws of the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.
*/
/* wrap.c
* This program texture maps a checkerboard image onto
* two rectangles. This program demonstrates the wrapping
* modes, if the texture coordinates fall outside 0.0 and 1.0.
* Interaction: Pressing the 's' and 'S' keys switch the
* wrapping between clamping and repeating for the s parameter.
* The 't' and 'T' keys control the wrapping for the t parameter.
*
* If running this program on OpenGL 1.0, texture objects are
* not used.
*/
#include <GL/glut.h>
#include <stdlib.h>
#include <stdio.h>
/* Create checkerboard texture */
#define checkImageWidth 64
#define checkImageHeight 64
static GLubyte checkImage[checkImageHeight][checkImageWidth][4];
#ifdef GL_VERSION_1_1
static GLuint texName;
#endif
void makeCheckImage(void)
{
int i, j, c;
for (i = 0; i < checkImageHeight; i++) {
for (j = 0; j < checkImageWidth; j++) {
c = ((((i&0x8)==0)^((j&0x8))==0))*255;
checkImage[i][j][0] = (GLubyte) c;
checkImage[i][j][1] = (GLubyte) c;
checkImage[i][j][2] = (GLubyte) c;
checkImage[i][j][3] = (GLubyte) 255;
}
}
}
void init(void)
{
glClearColor (0.0, 0.0, 0.0, 0.0);
glShadeModel(GL_FLAT);
glEnable(GL_DEPTH_TEST);
makeCheckImage();
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
#ifdef GL_VERSION_1_1
glGenTextures(1, &texName);
glBindTexture(GL_TEXTURE_2D, texName);
#endif
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
#ifdef GL_VERSION_1_1
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, checkImageWidth,
checkImageHeight,
0, GL_RGBA, GL_UNSIGNED_BYTE, checkImage);
#else
glTexImage2D(GL_TEXTURE_2D, 0, 4, checkImageWidth, checkImageHeight,
0, GL_RGBA, GL_UNSIGNED_BYTE, checkImage);
#endif
}
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
#ifdef GL_VERSION_1_1
glBindTexture(GL_TEXTURE_2D, texName);
#endif
glBegin(GL_QUADS);
glTexCoord2f(0.0, 0.0); glVertex3f(-2.0, -1.0, 0.0);
glTexCoord2f(0.0, 3.0); glVertex3f(-2.0, 1.0, 0.0);
glTexCoord2f(3.0, 3.0); glVertex3f(0.0, 1.0, 0.0);
glTexCoord2f(3.0, 0.0); glVertex3f(0.0, -1.0, 0.0);
glTexCoord2f(0.0, 0.0); glVertex3f(1.0, -1.0, 0.0);
glTexCoord2f(0.0, 3.0); glVertex3f(1.0, 1.0, 0.0);
glTexCoord2f(3.0, 3.0); glVertex3f(2.41421, 1.0, -1.41421);
glTexCoord2f(3.0, 0.0); glVertex3f(2.41421, -1.0, -1.41421);
glEnd();
glFlush();
glDisable(GL_TEXTURE_2D);
}
void reshape(int w, int h)
{
glViewport(0, 0, (GLsizei) w, (GLsizei) h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0, (GLfloat) w/(GLfloat) h, 1.0, 30.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0.0, 0.0, -3.6);
}
void keyboard (unsigned char key, int x, int y)
{
switch (key) {
case 's':
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glutPostRedisplay();
break;
case 'S':
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glutPostRedisplay();
break;
case 't':
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glutPostRedisplay();
break;
case 'T':
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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(250, 250);
glutInitWindowPosition(100, 100);
glutCreateWindow(argv[0]);
init();
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutKeyboardFunc(keyboard);
glutMainLoop();
return 0;
}
-------------------------------------
Now, compile it:
[EMAIL PROTECTED] openglbk-edit $ gcc -g wrap.c -o wrap -lGL -lGLU -lglut
[EMAIL PROTECTED] openglbk-edit $ ./wrap
You run it and everything is nice but check this:
[EMAIL PROTECTED] openglbk-edit $ gdb wrap
GNU gdb 6.0
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "i686-pc-linux-gnu"...Using host libthread_db
library "/lib/libthread_db.so.1".
(gdb) run
Starting program: /home/pmatos/ist/mvt/labs/openglbk-edit/wrap
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 5583)]
Program received signal SIGFPE, Arithmetic exception.
[Switching to Thread 16384 (LWP 5583)]
0x406567ff in _mesa_test_os_sse_exception_support ()
from /usr/X11R6/lib/modules/dri/radeon_dri.so
(gdb)
This happens with all OpenGL programs I try to compile. Is it just me or
it's a more general problem?
Some extra info:
[EMAIL PROTECTED] openglbk-edit $ gcc -v
Reading specs from /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/specs
Configured with: /var/tmp/portage/gcc-3.3.2-r2/work/gcc-3.3.2/configure
--prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.3
--includedir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/include
--datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3
--mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3/man
--infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3/info --enable-shared
--host=i686-pc-linux-gnu --target=i686-pc-linux-gnu --with-system-zlib
--enable-languages=c,c++,f77,objc,java --enable-threads=posix
--enable-long-long --disable-checking --enable-cstdio=stdio
--enable-clocale=generic --enable-__cxa_atexit
--enable-version-specific-runtime-libs
--with-gxx-include-dir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.2/include/g++-v3
--with-local-prefix=/usr/local --enable-shared --enable-nls --without-included-gettext
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib --enable-interpreter
--enable-java-awt=xlib --with-x --disable-multilib
Thread model: posix
gcc version 3.3.2 20031022 (Gentoo Linux 3.3.2-r2, propolice)
Best regards,
--
Paulo J. Matos : pocm [_at_] mega . ist . utl . pt
Instituto Superior Tecnico - Lisbon
Computer and Software Eng. - A.I.
- > http://mega.ist.utl.pt/~pocm
---
-> God had a deadline...
So, he wrote it all in Lisp!
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