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134 | with
openGL.Errors,
openGL.Tasks,
ada.unchecked_Deallocation;
package body openGL.Buffer
is
use type a_Name;
---------------
-- Buffer Name
--
function new_vbo_Name return a_Name
is
Name : aliased a_Name;
begin
Tasks.check;
glGenBuffers (1, Name'unchecked_Access);
return Name;
end new_vbo_Name;
procedure free (vbo_Name : in a_Name)
is
Name : aliased a_Name := vbo_Name;
begin
Tasks.check;
glDeleteBuffers (1, Name'unchecked_Access);
end free;
pragma Unreferenced (free);
----------
-- Object
--
procedure verify_Name (Self : in out Object'Class)
is
begin
if Self.Name = 0 then
Self.Name := new_vbo_Name;
end if;
end verify_Name;
function Name (Self : in Object) return Buffer.a_Name
is
begin
return Self.Name;
end Name;
procedure enable (Self : in Object'Class)
is
pragma assert (Self.Name > 0);
begin
Tasks.check;
glBindBuffer (to_GL_Enum (Self.Kind),
Self.Name);
openGL.Errors.log;
end enable;
procedure destroy (Self : in out Object'Class)
is
begin
Tasks.check;
glBindBuffer (to_GL_Enum (Self.Kind), 0);
openGL.Errors.log;
glDeleteBuffers (1, Self.Name'Access);
openGL.Errors.log;
Self.Name := 0;
end destroy;
procedure free (Self : in out View)
is
procedure deallocate is new ada.unchecked_Deallocation (Buffer.Object'Class,
Buffer.view);
begin
if Self /= null
then
Self.destroy;
deallocate (Self);
end if;
end free;
function Length (Self : in Object) return Positive
is
begin
return Self.Length;
end Length;
-------------------------
-- 'array' Buffer Object
--
overriding
function Kind (Self : in array_Object) return Buffer.a_Kind
is
pragma Unreferenced (Self);
begin
return array_Buffer;
end Kind;
---------------------------------
-- 'element array' Buffer object
--
overriding
function Kind (Self : in element_array_Object) return Buffer.a_Kind
is
pragma Unreferenced (Self);
begin
return element_array_Buffer;
end Kind;
end openGL.Buffer;
|