From 57bb893a46ced683792f8e7ebdffbb5c5a892b84 Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Mon, 21 Jun 2010 16:05:00 -0700
Subject: glsl_type: Add method to get number of slots used by a type

---
 glsl_types.cpp | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'glsl_types.cpp')

diff --git a/glsl_types.cpp b/glsl_types.cpp
index 290756d..2b7c5bc 100644
--- a/glsl_types.cpp
+++ b/glsl_types.cpp
@@ -732,3 +732,31 @@ glsl_type::field_index(const char *name) const
 
    return -1;
 }
+
+
+unsigned
+glsl_type::component_slots() const
+{
+   switch (this->base_type) {
+   case GLSL_TYPE_UINT:
+   case GLSL_TYPE_INT:
+   case GLSL_TYPE_FLOAT:
+   case GLSL_TYPE_BOOL:
+      return this->components();
+
+   case GLSL_TYPE_STRUCT: {
+      unsigned size = 0;
+
+      for (unsigned i = 0; i < this->length; i++)
+	 size += this->fields.structure[i].type->component_slots();
+
+      return size;
+   }
+
+   case GLSL_TYPE_ARRAY:
+      return this->length * this->fields.array->component_slots();
+
+   default:
+      return 0;
+   }
+}
-- 
cgit v1.2.3