[Mesa3d-dev] [Bug 27265] GLSL Compiler doesnt link the attached vertex shader

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27265





--- Comment #3 from Brian Paul <bri...@gm...>  2010-03-23 09:19:23 PST ---
Created an attachment (id=34368)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=34368)
do varying var allocation upon usage to use fewer regs

The fragment shader is trying to read a varying var that's never written to (or
declared in) the vertex shader.  So that's an error.

I modified the fragment shader accordingly and found the link still failed
because of too many varying vars.  However, a lot of varying vars are declared
but not actually used in the shader.

The following patch avoids allocating a register slot for varyings that aren't
used.  With this patch, the test works.  Want to give it a try?  I've only
lightly tested it so far.


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.