pch migration to modules [wip]

gl/buffer.cppm

@@ -0,0 +1,53 @@
+module;
+#include "glad/glad.h"
+
+export module eu07.gl.buffer;
+import eu07.gl.object;
+import eu07.gl.bindable;
+
+export {
+
+
+namespace gl
+{
+    class buffer : public object
+    {
+		thread_local static GLuint binding_points[13];
+
+    public:
+        enum targets
+        {
+            ARRAY_BUFFER = 0,
+            ATOMIC_COUNTER_BUFFER,
+            COPY_READ_BUFFER,
+            COPY_WRITE_BUFFER,
+            DISPATCH_INDIRECT_BUFFER,
+            DRAW_INDIRECT_BUFFER,
+            ELEMENT_ARRAY_BUFFER, // ELEMENT_ARRAY_BUFFER is part of VAO and therefore shouldn't be managed by global tracker!
+            PIXEL_PACK_BUFFER,
+            PIXEL_UNPACK_BUFFER,
+            SHADER_STORAGE_BUFFER,
+            TEXTURE_BUFFER,
+            TRANSFORM_FEEDBACK_BUFFER,
+            UNIFORM_BUFFER
+        };
+
+	protected:
+        static GLenum glenum_target(targets target);
+
+    public:
+        buffer();
+        ~buffer();
+
+        void bind(targets target);
+        void bind_base(targets target, GLuint index);
+        static void unbind(targets target);
+		static void unbind();
+
+        void allocate(targets target, GLsizeiptr size, GLenum hint);
+	    void upload(targets target, const void *data, int offset, GLsizeiptr size);
+	    void download(targets target, void *data, int offset, GLsizeiptr size);
+    };
+}
+
+}  // export