glsl: fix uniform linking logic in the presence of structs

Add a enter/leave record callback so that the offset may be aligned to
the proper value. Otherwise only leaf fields are called, and the first
field needs to be aligned to the outer struct's base alignment while the
last field needs to be aligned to the inner struct's base alignment.

This removes most usage of the last field/record type values passed into
visit_field.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/glsl/linker.h b/src/glsl/linker.h
index 6ee5858..be4da5e 100644
--- a/src/glsl/linker.h
+++ b/src/glsl/linker.h
@@ -170,6 +170,12 @@ protected:
     */
    virtual void visit_field(const glsl_struct_field *field);
 
+   virtual void enter_record(const glsl_type *type, const char *name,
+                             bool row_major);
+
+   virtual void leave_record(const glsl_type *type, const char *name,
+                             bool row_major);
+
 private:
    /**
     * \param name_length  Length of the current name \b not including the