ref: render code moved out of engine, doesn't compile, first API prototype

engine/client/ref_common.h

@@ -0,0 +1,54 @@
+/*
+ref_common.h - Xash3D render dll API
+Copyright (C) 2019 a1batross
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+*/
+#pragma once
+#ifndef REF_COMMON_H
+#define REF_COMMON_H
+
+#include "ref_api.h"
+
+#define TF_SKY		(TF_SKYSIDE|TF_NOMIPMAP)
+#define TF_FONT		(TF_NOMIPMAP|TF_CLAMP)
+#define TF_IMAGE		(TF_NOMIPMAP|TF_CLAMP)
+#define TF_DECAL		(TF_CLAMP)
+
+#define RP_LOCALCLIENT( e )	((e) != NULL && (e)->index == ( cl.playernum + 1 ) && e->player )
+
+struct ref_state_s
+{
+	qboolean initialized;
+
+	HINSTANCE hInstance;
+	ref_interface_t dllFuncs;
+};
+
+extern struct ref_state_s ref;
+extern ref_globals_t refState;
+
+// handy API wrappers
+void R_GetTextureParms( int *w, int *h, int texnum );
+#define RefRenderAPI   ref.dllFuncs.RenderAPI
+#define RefRenderIface ref.dllFuncs.RenderIface
+#define RENDER_GET_PARM( parm, arg ) RefRenderAPI->RenderGetParm( (parm), (arg) )
+#define GL_LoadTextureInternal( name, pic, flags ) ref.dllFuncs.GL_LoadTextureFromBuffer( name, pic, flags, false )
+#define GL_UpdateTextureInternal( name, pic, flags ) ref.dllFuncs.GL_LoadTextureFromBuffer( name, pic, flags, true )
+
+// common engine and renderer cvars
+extern convar_t	*r_decals;
+extern convar_t	*r_adjust_fov;
+
+extern convar_t	*vid_fullscreen;
+extern convar_t	*vid_displayfrequency;
+
+#endif // REF_COMMON_H