1 files changed, 27 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/VertexAttribute.inl b/gfx/angle/src/libANGLE/VertexAttribute.inl
index a1f88f317..0cd31f676 100755
--- a/gfx/angle/src/libANGLE/VertexAttribute.inl
+++ b/gfx/angle/src/libANGLE/VertexAttribute.inl
@@ -27,6 +27,33 @@ inline bool operator!=(const VertexAttribute &a, const VertexAttribute &b)
     return !(a == b);
 }
 
+template <typename T>
+T QuerySingleVertexAttributeParameter(const VertexAttribute& attrib, GLenum pname)
+{
+  switch (pname)
+  {
+    case GL_VERTEX_ATTRIB_ARRAY_ENABLED:
+      return static_cast<T>(attrib.enabled ? GL_TRUE : GL_FALSE);
+    case GL_VERTEX_ATTRIB_ARRAY_SIZE:
+      return static_cast<T>(attrib.size);
+    case GL_VERTEX_ATTRIB_ARRAY_STRIDE:
+      return static_cast<T>(attrib.stride);
+    case GL_VERTEX_ATTRIB_ARRAY_TYPE:
+      return static_cast<T>(attrib.type);
+    case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
+      return static_cast<T>(attrib.normalized ? GL_TRUE : GL_FALSE);
+    case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
+      return static_cast<T>(attrib.buffer.id());
+    case GL_VERTEX_ATTRIB_ARRAY_DIVISOR:
+      return static_cast<T>(attrib.divisor);
+    case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
+      return static_cast<T>(attrib.pureInteger ? GL_TRUE : GL_FALSE);
+    default:
+      UNREACHABLE();
+      return static_cast<T>(0);
+  }
+}
+
 inline VertexAttribCurrentValueData::VertexAttribCurrentValueData()
     : Type(GL_FLOAT)
 {