mesa/vbo: add support for 64-bit vertex attributes. (v1)

This adds support in the vbo and array code to handle
double vertex attributes.

v0.2: merge code to handle doubles in vbo layer.
v1: don't use v0, merge api_array elt code.

Acked-by: Ilia Mirkin <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 17 insertions, 0 deletions

diff --git a/src/mesa/vbo/vbo_context.h b/src/mesa/vbo/vbo_context.h
index 6099b56e661..a376efe34a7 100644
--- a/src/mesa/vbo/vbo_context.h
+++ b/src/mesa/vbo/vbo_context.h
@@ -146,6 +146,7 @@ vbo_attrtype_to_integer_flag(GLenum format)
 {
    switch (format) {
    case GL_FLOAT:
+   case GL_DOUBLE:
       return GL_FALSE;
    case GL_INT:
    case GL_UNSIGNED_INT:
@@ -156,6 +157,22 @@ vbo_attrtype_to_integer_flag(GLenum format)
    }
 }
 
+static inline GLboolean
+vbo_attrtype_to_double_flag(GLenum format)
+{
+   switch (format) {
+   case GL_FLOAT:
+   case GL_INT:
+   case GL_UNSIGNED_INT:
+      return GL_FALSE;
+   case GL_DOUBLE:
+      return GL_TRUE;
+   default:
+      assert(0);
+      return GL_FALSE;
+   }
+}
+
 /**
  * Return default component values for the given format.
  * The return type is an array of fi_types, because that's how we declare