Mesa (gallium-mesa-7.4): glsl: update program-> InputsRead when referencing input attributes

[Alan Hourihane]

Module: Mesa
Branch: gallium-mesa-7.4
Commit: e730a9deef8a492cdeda3983efad92a17a72fd8a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e730a9deef8a492cdeda3983efad92a17a72fd8a

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Feb 19 17:00:06 2009 -0700

glsl: update program->InputsRead when referencing input attributes

This info will be used in the linker for allocating generic vertex attribs.

(cherry picked from master, commit 1cb7cd1292dc8592d4912194d91355eb61361be5)

---

 src/mesa/shader/slang/slang_emit.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/src/mesa/shader/slang/slang_emit.c b/src/mesa/shader/slang/slang_emit.c
index a9334a4..feff1b7 100644
--- a/src/mesa/shader/slang/slang_emit.c
+++ b/src/mesa/shader/slang/slang_emit.c
@@ -2151,6 +2151,10 @@ emit_var_ref(slang_emit_info *emitInfo, slang_ir_node *n)
       /* mark var as used */
       _mesa_use_uniform(emitInfo->prog->Parameters, (char *) n->Var->a_name);
    }
+   else if (n->Store->File == PROGRAM_INPUT) {
+      assert(n->Store->Index >= 0);
+      emitInfo->prog->InputsRead |= (1 << n->Store->Index);
+   }
 
    if (n->Store->Index < 0) {
       /* probably ran out of registers */