st/mesa: index can be negative in the PROGRAM_CONSTANT case

NOTE: This is a candidate for the 8.0 branch.

Reviewed-by: Brian Paul <brianp@vmware.com>

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 39717b6..9f58312 100644 (file)
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -4028,7 +4028,7 @@ dst_register(struct st_translate *t,
 static struct ureg_src
 src_register(struct st_translate *t,
              gl_register_file file,
-             GLuint index)
+             GLint index)
 {
    switch(file) {
    case PROGRAM_UNDEFINED: