glsl: Add ir support for `sample` qualifier; adjust compiler and linker

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/glsl/glsl_types.h b/src/glsl/glsl_types.h
index 96eee5e..fb7c928 100644
--- a/src/glsl/glsl_types.h
+++ b/src/glsl/glsl_types.h
@@ -634,6 +634,12 @@ struct glsl_struct_field {
     * in ir_variable::centroid).  0 otherwise.
     */
    unsigned centroid:1;
+
+   /**
+    * For interface blocks, 1 if this variable uses sample interpolation (as
+    * in ir_variable::sample). 0 otherwise.
+    */
+   unsigned sample:1;
 };
 
 static inline unsigned int