WoW in opengl mode hangs the r300 GPU due to an uncommon vertex program.
It defines an attibute (ATTRIB v18 = vertex.normal;) which is never used
in the vertex program. This unused attrib goes into InputsRead. r300
code doesn't handle this case and the gpu hangs.
Markus
---
src/mesa/shader/arbprogparse.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/mesa/shader/arbprogparse.c b/src/mesa/shader/arbprogparse.c
index 705507a..83569c8 100644
--- a/src/mesa/shader/arbprogparse.c
+++ b/src/mesa/shader/arbprogparse.c
@@ -1618,8 +1618,6 @@ parse_attrib_binding(GLcontext * ctx, const GLubyte ** inst,
program_error(ctx, Program->Position, "Bad attribute binding");
}
- Program->Base.InputsRead |= (1 << *inputReg);
-
return err;
}
@@ -2546,6 +2544,8 @@ parse_src_reg (GLcontext * ctx, const GLubyte ** inst,
case vt_attrib:
*File = PROGRAM_INPUT;
*Index = src->attrib_binding;
+ /* Only set inputs actually used */
+ Program->Base.InputsRead |= (1 << *Index);
break;
/* XXX: We have to handle offsets someplace in here! -- or are those above? */
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