glsl: Add constuctors for the common cases of glsl_struct_field

Fixes a giant pile of GCC warnings:

builtin_types.cpp:60:1: warning: missing initializer for member 'glsl_struct_field::stream' [-Wmissing-field-initializers]

I had to add a default constructor because a non-default constructor
was added.  Otherwise the only constructor would be the one with
parameters, and all the plases like

    glsl_struct_field foo;

would fail to compile.

I wanted to do this in two patches.  All of the initializers of
glsl_struct_field structures had to be converted to use the
constructor because C++ apparently forces you to do one or the other:

builtin_types.cpp:61:1: error: could not convert '{glsl_type::float_type, "near", -1, 0, 0, 0, GLSL_MATRIX_LAYOUT_INHERITED, 0, -1}' from '<brace-enclosed initializer list>' to 'glsl_struct_field'

Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Francisco Jerez <[email protected]>
Reviewed-by: Juha-Pekka Heikkila <[email protected]>

1 files changed, 1 insertions, 9 deletions

diff --git a/src/glsl/tests/varyings_test.cpp b/src/glsl/tests/varyings_test.cpp
index 62f8c6bc5ad..0c4e0a471b8 100644
--- a/src/glsl/tests/varyings_test.cpp
+++ b/src/glsl/tests/varyings_test.cpp
@@ -76,15 +76,7 @@ public:
 link_varyings::link_varyings()
 {
    static const glsl_struct_field f[] = {
-      {
-         glsl_type::vec(4),
-         "v",
-         false,
-         0,
-         0,
-         0,
-         0
-      }
+      glsl_struct_field(glsl_type::vec(4), "v")
    };
 
    this->simple_interface =