glXBindTexImageEXT causing error
brian.paul at tungstengraphics.com
Thu Nov 30 07:53:04 PST 2006
Heinrich Janzing wrote:
> I'm writing an OpenGL composite/window manager, and I ran into a strange
> problem. When I call glXBindTexImageEXT, the next X call (whether it be a GLX
> one or not) consistently causes a GLXUnsupportedPrivateRequest (Major opcode
> 142, minor opcode 16). I tried not grabbing the server while calling
> glXBindTexImageEXT, but that didn't seem to matter.
> Any ideas as to why I seem to be getting a "delayed" error, what exactly this
> error means, or even better, how to avoid getting an error at all?
> Code snippet:
> void Texture::enable()
> XSync(getDisplay(), false);
> GLuint tmpName;
> glGenTextures(1, &tmpName);
> glBindTexture(getTarget(), getName());
> glXBindTexImageEXT(getDisplay(), getGLXPixmap(), GLX_FRONT_LEFT_EXT, NULL);
> glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
> glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
> I'm linking to the Mesa libGL, since ATI's doesn't implement
> Rendering happens after this method is called. Now the next X request will
> cause the error.
> I'm running Ubuntu Edgy Eft, using the 6.5.1~20060817-0ubuntu3 mesa packages.
> (OpenGL version string: 1.2 (1.5 Mesa 6.5.1)) and Xorg 1:7.1.1ubuntu6
We don't yet fully support GLX_EXT_texture_from_pixmap. I think Ian
was working on it a while back though.
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