tgsi/ureg: give ureg_DECL_constant an explicit index parameter

Avoid the need to emit all constant declarations in order.  Makes
referring to a specific constant in the constant buffer much easier.

2 files changed, 6 insertions, 2 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index 55a4e5b2e92..9222af91fe1 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -308,8 +308,11 @@ out:
  * value or manage any constant_buffer contents -- that's the
  * resposibility of the calling code.
  */
-struct ureg_src ureg_DECL_constant(struct ureg_program *ureg )
+struct ureg_src ureg_DECL_constant(struct ureg_program *ureg, 
+                                   unsigned index )
 {
+   
+
    return ureg_src_register( TGSI_FILE_CONSTANT, ureg->nr_constants++ );
 }
 
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.h b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
index 3bc1b775030..627a5b0c523 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
@@ -129,7 +129,8 @@ ureg_DECL_immediate( struct ureg_program *,
                      unsigned nr );
 
 struct ureg_src
-ureg_DECL_constant( struct ureg_program * );
+ureg_DECL_constant( struct ureg_program *,
+                    unsigned index );
 
 struct ureg_dst
 ureg_DECL_temporary( struct ureg_program * );