Debian Programming :: Cannot Get OpenGL Version
Feb 28, 2014
Running under Debian oldstable:
#include<stdio.h>
#include<stdlib.h>
#include <GL/glew.h>
#include <GL/glext.h>
#include <GL/glut.h>
void init(){
const GLubyte* version = glGetString(GL_VERSION); // line 2338
printf("version = %s
", version);
...
The gcc compiler gives me:
code.c: In function ‘init’:
code.c:2338: error: stray ‘342’ in program
code.c:2338: error: stray ‘200’ in program
code.c:2338: error: stray ‘213’ in program
code.c:2338: error: stray ‘342’ in program
code.c:2338: error: stray ‘200’ in program
code.c:2338: error: stray ‘213’ in program
Do I need an additional header?
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Feb 5, 2015
I have moved from MS directX to OpenGL on Linux Debian. My computer is running Jessie version with Gimp. I am trying to use several of the gl 4.0 functions but getting compiler error. I check for OpenGL version and appears to be version 1.5 .... How can I verify the correct openGL version and how can I upgrade to a moder version of at least 4.0?
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I am writing a program that needs to display graphs. Right now I am using Cairo which works well except it is really slow. Drawing 1200 lines locks up my computer (i7 CPU and gtx285 graphics card). I only found examples to use Cairo with GTK DrawingArea can I use OpenGL instead or is there a way to cairo to run faster?
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I'm looking for some sample C++ code that uses OpenGL on XCode 4.1 for OSX Lion. All I have found so far are GLUT and/or Objective-C samples. Has anyone come across something similar to what I'm after? I really just need something simple that allows me to open a window, or start in fullscreen.
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Oct 8, 2014
Suppose I have the library code in library.cpp. I found that to include the version information in the .so library, I had to use these command forms:
Code: Select allg++ -Wall -fPIC -c library.cpp
g++ -shared -Wl,-soname,library.so.0 -o liblibrary.so.0.1
The howto then continued to recommend creating symbolic links pointing at the newly compiled library. [URL] ....
The result is, during the booting sequence, I am receiving this error:
Code: Select alllibsystemd-login.so.1: no version information available (required by /usr/bin/dbus-daemon).
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Feb 11, 2011
I have made a game for Linux and want to release it soon (on linux & windows). Since its SDL/OpenGL and I dont do any special things it shouldn't be much porting to windows. Problem: Maintaining I have the game in code::blocks SDL project on Linux. So I got wine and installed wined Code::Blocks with MingW so I can cross compile on Linux. For another game I made, I used a Makefile which has "if" statements to set up compile variables. And everything else is totally identical to windows & linux (code, source files and etc...)
With codeblocks I got used to not having to worry about makefiles and it did well and I better focused on making the game rather than everytime a new file is added editing the makefile and etc... Is there some nice ways to have a cross platform environment to make it easy to make games for Linux and windows. I'm thinking of making my own system of auto-generating a makefile (essentially upgrading the setup I have for my previous game to auto add entry's to the makefile & some other stuff).
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I have verified using yum that I have the most uptodate glut, freeglut, freeglut-devel etc., yet when I compile Example 2-6 from the Red Book at http://www.glprogramming.com/red/chapter02.html#name16, I get a window that is too small for the program output, includes display from other windows, and will not redraw after being resized.
I get slightly better behavior with the SGI sample program mentioned in the same book, 'checkers.c'. Again, the initial size is too small, but at least it will resize and redraw the checkerboards entirely inside the resized window. What is going on here? Is this some bug in glut? I can't see anything obviously wrong in their glut initialization, which looks like:
int main(int argc, char** argv)
{
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[code]...
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Output of glxinfo | grep OpenGL:
OpenGL vendor string: Intel Open Source Technology Center
OpenGL vendor string: Intel Open Source Technology Center
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OpenGL core profile context flags: (none)
[Code] .....
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I am enjoying spontaneous reboots. Here is my config:
Code: Select allroot@notosh:/home/ckosloff# inxi -bmxxx
System: Host: notosh Kernel: 3.16-0.towo-siduction-amd64 x86_64 (64 bit gcc: 4.9.1)
Desktop: KDE 4.14.0 (Qt 4.8.6) info: plasma-desktop dm: kdm
Distro: Debian GNU/Linux jessie/sid
Machine: System: TOSHIBA product: Satellite C75D-B v: PSCLEU-003002 serial: 6E028973U
Mobo: TOSHIBA model: Portable PC v: MP serial: 1 Bios: Insyde v: 1.10 date: 04/30/2014
[Code] ....
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I attached some relevant info...
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[Code]...
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*** 'pkg-config --modversion glib-2.0' returned 2.25.8, but GLIB (2.24.1)
*** was found! If pkg-config was correct, then it is best
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*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing
*** /etc/ld.so.conf. Make sure you have run ldconfig if that is
*** required on your system
[Code]...
Apparently there is an old version of GLIB on my system bugging my installation process. Does anybody know how to get rid of this old version?
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