XCB crash while Video Rendering in multithreded application
I encounter the following crash on RHEL 7.0 when I run a multithreaded video rendering application using GLFW and OpenGL. OpenGL version is 2.1 and MESA version is 9.3.0
Following is the back trace of the multi-threaded program I am working on:
**************************************************************************************************** *******************
Please suggest the resolution.
Last edited by Don Cragun; 01-21-2015 at 05:40 PM..
Reason: Add CODE tags.
Does anyone know why Fonts and most Graphics in KDE and Gnome are rendered rather badly. There are some text editors in KDE where the font is just horrible as far as legible.
Any links or knowledge on this topic would be grealy appreciated.
A Huge Unix/Linux Fan
Gregg (2 Replies)
Hi everyone.
I made a program which renders a 3D scene into a pbuffer/pixmap (if pbuffer aren't supported) in order to export it to a postscript file.
On a RHEL4 (32/64 bits) or whatever distribution may be, it works just fine.
I'm using Exceed when I'm working under WinXP and each time I run my... (0 Replies)
hello all,
I have developed a server application in C for ulinux kernel 2.6.It works very fine; creating a socket, binding it to a port, listening for incoming sockets and accepting them ,all finish without any error.
But there is a problem regarding application crash.After an intentionally... (1 Reply)
Problem
- Linux Client/Server Socket Application: Preventing Client from quitting on server crash
Hi,
I am writing a Linux socket Server and Client using TCP protocol on Ubuntu 9.04 x64.
I am having problem trying to implement a scenario where the client should keep running even when the... (2 Replies)
In my mint I can't found <xcb/xcb.h> while in Ubuntu it was.
---------- Post updated at 03:11 PM ---------- Previous update was at 01:43 PM ----------
Is possibility install XCB from sources:
from linuxfromscratch.org
steps:
x7proto.html
xcb-proto.html
libXau.html
libxcb.html (3 Replies)
Hi,
This weekend there was a sudden application crash in the server.
I did not know where to start to investigate the problem, so I first looked into the /var/adm/syslog/syslog.log, and this was what I found :
Dec 17 00:38:02 L28bi01 sshd: error: accept: No buffer space available
Dec 17... (9 Replies)
Look this very good rendering on Slackware 14.2
in my opinion is near perfect.
https://i.stack.imgur.com/q5trL.png
Now look the same page on Fedora 30
https://i.stack.imgur.com/FBQv7.png
In my opinion the fonts on Fedora are too small and difficult to read, I prefer the fat fonts of... (20 Replies)
Discussion started by: Linusolaradm1
20 Replies
LEARN ABOUT DEBIAN
glvalidateprogram
GLVALIDATEPROGRAM(3G) [FIXME: manual] GLVALIDATEPROGRAM(3G)NAME
glValidateProgram - Validates a program object
C SPECIFICATION
void glValidateProgram(GLuint program);
PARAMETERS
program
Specifies the handle of the program object to be validated.
DESCRIPTION
glValidateProgram checks to see whether the executables contained in program can execute given the current OpenGL state. The information
generated by the validation process will be stored in program's information log. The validation information may consist of an empty string,
or it may be a string containing information about how the current program object interacts with the rest of current OpenGL state. This
provides a way for OpenGL implementers to convey more information about why the current program is inefficient, suboptimal, failing to
execute, and so on.
The status of the validation operation will be stored as part of the program object's state. This value will be set to GL_TRUE if the
validation succeeded, and GL_FALSE otherwise. It can be queried by calling glGetProgram() with arguments program and GL_VALIDATE_STATUS. If
validation is successful, program is guaranteed to execute given the current state. Otherwise, program is guaranteed to not execute.
This function is typically useful only during application development. The informational string stored in the information log is completely
implementation dependent; therefore, an application should not expect different OpenGL implementations to produce identical information
strings.
NOTES
This function mimics the validation operation that OpenGL implementations must perform when rendering commands are issued while
programmable shaders are part of current state. The error GL_INVALID_OPERATION will be generated by any command that triggers the rendering
of geometry if:
o any two active samplers in the current program object are of different types, but refer to the same texture image unit,
o the number of active samplers in the program exceeds the maximum number of texture image units allowed.
It may be difficult or cause a performance degradation for applications to catch these errors when rendering commands are issued.
Therefore, applications are advised to make calls to glValidateProgram to detect these issues during application development.
ERRORS
GL_INVALID_VALUE is generated if program is not a value generated by OpenGL.
GL_INVALID_OPERATION is generated if program is not a program object.
ASSOCIATED GETS
glGetProgram() with arguments program and GL_VALIDATE_STATUS
glGetProgramInfoLog() with argument program
glIsProgram()
SEE ALSO
glLinkProgram(), glUseProgram()
COPYRIGHT
Copyright (C) 2003-2005 3Dlabs Inc. Ltd. This material may be distributed subject to the terms and conditions set forth in the Open
Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.
[FIXME: source] 05/30/2012 GLVALIDATEPROGRAM(3G)