Forgot to attached simple app I used to test this. -Nathan
On 11-05-13 01:11 PM, Nathan Kidd wrote:
Rather than ripping out the rug from under the user, worst-case the app
doesn't draw correctly but at least the user has a chance to save. The
trace logs will still give necessary info to know something went wrong.
This is the logical follow-up to the previous patch. Given enough time,
I suggest an app that triggers one of these cases will be encountered.
While we don't want to start baby-sitting bad applications, we should at
least be as lenient as other known GL drivers.
-Nathan
/*
* A demonstration of what happens when you abuse
* glXGetConfig/glXGetFBconfigAttrib.
*
* [email protected] May 2011
*/
#include <GL/gl.h>
#define GLX_GLXEXT_PROTOTYPES
#include <GL/glx.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main( int argc, char *argv[] )
{
Display *dpy;
int value;
int rv,n;
XVisualInfo *xvi;
GLXFBConfig *fb;
int visattrib[]={GLX_RGBA, None};
int fbattrib[]={GLX_RENDER_TYPE, GLX_RGBA_BIT, None};
dpy = XOpenDisplay(NULL);
if (!dpy){printf("Error: can't open display\n"); return 1;}
xvi = glXChooseVisual(dpy, DefaultScreen(dpy), visattrib);
if (!xvi){printf("Error: can't get visual\n"); return 1;}
printf("glXGetConfig:\n");
rv = glXGetConfig(dpy, xvi, GLX_USE_GL, &value); printf("all good rv=%d\n", rv);
rv = glXGetConfig(0, xvi, GLX_USE_GL, &value); printf("nul dpy rv=%d\n", rv);
rv = glXGetConfig(dpy, 0, GLX_USE_GL, &value); printf("nul vis rv=%d\n", rv);
rv = glXGetConfig(dpy, xvi, 0, &value); printf("nul attrb rv=%d\n", rv);
rv = glXGetConfig(dpy, xvi, GLX_USE_GL, 0); printf("nul value rv=%d\n", rv);
printf("glXGetFBConfigAttrib:\n");
fb = glXChooseFBConfig(dpy, DefaultScreen(dpy), fbattrib, &n);
if (!fb||!n){printf("Error: can't get fbconfig\n"); return 1;}
rv = glXGetFBConfigAttrib(dpy, fb[0], GLX_LEVEL, &value); printf("all good rv=%d\n", rv);
rv = glXGetFBConfigAttrib(0, fb[0], GLX_LEVEL, &value); printf("nul dpy rv=%d\n", rv);
rv = glXGetFBConfigAttrib(dpy, 0, GLX_LEVEL, &value); printf("nul confg rv=%d\n", rv);
rv = glXGetFBConfigAttrib(dpy, fb[0], 0, &value); printf("nul attrb rv=%d\n", rv);
rv = glXGetFBConfigAttrib(dpy, fb[0], GLX_LEVEL, 0); printf("nul value rv=%d\n", rv);
return 0;
}
------------------------------------------------------------------------------
Achieve unprecedented app performance and reliability
What every C/C++ and Fortran developer should know.
Learn how Intel has extended the reach of its next-generation tools
to help boost performance applications - inlcuding clusters.
http://p.sf.net/sfu/intel-dev2devmay
_______________________________________________
VirtualGL-Devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/virtualgl-devel
