On Thu, 2 Jan 2003, Daniel Vogel wrote:
> A bit unrelated:
>
> > > Log: OpenGL Error: GL_INVALID_ENUM (UOpenGLRenderDevice::Unlock)
> > > (if anyone wants the full log let me know)
>
> On OS X 10.2.3 this is caused by
>
> glTexEnvi( GL_TEXTURE_ENV, GL_OPERAND2_RGB, GL_SRC_COLOR );
This is indeed one of the sources of the GL_INVALID_ENUMs; however, it
appears to be a bug in Mesa. There seems to be a missing break after
texstate.c:423 :
--- texstate.c Tue Jan 21 17:10:15 2003
+++ texstate.fixed.c Tue Jan 21 17:11:19 2003
@@ -421,6 +421,7 @@
return;
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texUnit->CombineOperandRGB[2] = operand;
+ break;
default:
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand);
return;
Brian, does that look right to you?
The other INVALID_ENUMS appear to be caused by an assumption that
GL_ARB_texture_cube_map is supported, which it isn't in the current DRI
Radeon driver. There appear to be calls to glDisable and glTexParameter
using GL_TEXTURE_CUBE_MAP_ARB even thought the extension isn't supported.
At least that's what I found with MESA_DEBUG=1 just from the intro/menu
screens.
I tried exporting GL_ARB_texture_cube_map from the Radeon driver and along
with the above patch, it makes all the OpenGL errors go away. The lack of
combine3/4 seems to be handled in the version I'm using (from the
UT2003.log):
Init: OpenGL: WARNING: no support for combine3/4 extensions -> not all
blend modes supported
However, I still see the same corruption reported before. This could be
in part because of the missing cube map support, but it looks to me like
something is causing vertex data corruption. Just a guess.
--
Leif Delgass
http://www.retinalburn.net
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