[Mesa-dev] [PATCH 2/6] glsl: Add support for int -> uint implicit conversions

[Chris Forbes]

This is required for ARB_gpu_shader5.

Signed-off-by: Chris Forbes <chrisf at ijw.co.nz>
---
 src/glsl/ast_to_hir.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index 39ad418..17c68e7 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -171,6 +171,14 @@ get_conversion_operation(const glsl_type *to, const glsl_type *from,
       default: return (ir_expression_operation)0;
       }
 
+   case GLSL_TYPE_UINT:
+      if (!state->is_version(400, 0) && !state->ARB_gpu_shader5_enable)
+         return (ir_expression_operation)0;
+      switch (from->base_type) {
+         case GLSL_TYPE_INT: return ir_unop_i2u;
+         default: return (ir_expression_operation)0;
+      }
+
    default: return (ir_expression_operation)0;
    }
 }
-- 
1.9.2