mesa/main/ff_frag: Reduce the size of nr_enabled_units.

Since it holds values from 0 to 8, 4 bits will suffice.

Signed-off-by: Gustaw Smolarczyk <wielkiegie@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/mesa/main/ff_fragment_shader.cpp b/src/mesa/main/ff_fragment_shader.cpp
index d1e89ab..9b00c36 100644 (file)
--- a/src/mesa/main/ff_fragment_shader.cpp
+++ b/src/mesa/main/ff_fragment_shader.cpp
@@ -100,7 +100,7 @@ struct mode_opt {
 };
 
 struct state_key {
-   GLuint nr_enabled_units:8;
+   GLuint nr_enabled_units:4;
    GLuint separate_specular:1;
    GLuint fog_mode:2;          /**< FOG_x */
    GLuint inputs_available:12;