Expose GraphicsBuffer type to Lua.

It currently doesn't have any methods or any way to access it, yet.

src/modules/graphics/wrap_Buffer.cpp

@@ -0,0 +1,45 @@
+/**
+* Copyright (c) 2006-2020 LOVE Development Team
+*
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+*
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+*
+* 1. The origin of this software must not be misrepresented; you must not
+*    claim that you wrote the original software. If you use this software
+*    in a product, an acknowledgment in the product documentation would be
+*    appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+*    misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+**/
+
+#include "wrap_Buffer.h"
+#include "Buffer.h"
+
+namespace love
+{
+namespace graphics
+{
+
+Buffer *luax_checkbuffer(lua_State *L, int idx)
+{
+	return luax_checktype<Buffer>(L, idx);
+}
+
+static const luaL_Reg w_Buffer_functions[] =
+{
+	{ 0, 0 }
+};
+
+extern "C" int luaopen_graphicsbuffer(lua_State *L)
+{
+	return luax_register_type(L, &Buffer::type, w_Buffer_functions, nullptr);
+}
+
+} // graphics
+} // love

src/modules/graphics/wrap_Buffer.h

@@ -0,0 +1,37 @@
+/**
+* Copyright (c) 2006-2020 LOVE Development Team
+*
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+*
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+*
+* 1. The origin of this software must not be misrepresented; you must not
+*    claim that you wrote the original software. If you use this software
+*    in a product, an acknowledgment in the product documentation would be
+*    appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+*    misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+**/
+
+#pragma once
+
+// LOVE
+#include "common/runtime.h"
+
+namespace love
+{
+namespace graphics
+{
+
+class Buffer;
+
+Buffer *luax_checkbuffer(lua_State *L, int idx);
+extern "C" int luaopen_graphicsbuffer(lua_State *L);
+
+} // graphics
+} // love

src/modules/graphics/wrap_Graphics.cpp

@@ -3134,6 +3134,7 @@ static const lua_CFunction types[] =
 	luaopen_font,
 	luaopen_image,
 	luaopen_quad,
+	luaopen_graphicsbuffer,
 	luaopen_spritebatch,
 	luaopen_particlesystem,
 	luaopen_canvas,

src/modules/graphics/wrap_Graphics.h

@@ -32,6 +32,7 @@
 #include "wrap_Mesh.h"
 #include "wrap_Text.h"
 #include "wrap_Video.h"
+#include "wrap_Buffer.h"
 #include "Graphics.h"
 
 namespace love