platform: introduce common header for platform-dependent functions. To keep clean code and engine platform-agnostic, now including headers from platform folder, except this one, is strictly prohibited.

engine/platform/platform.h

@@ -0,0 +1,71 @@
+/*
+platform.h - common platform-dependent function defines
+Copyright (C) 2018 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 PLATFORM_H
+#define PLATFORM_H
+
+/* 
+============================================================================== 
+ 
+			MOBILE API 
+ 
+============================================================================== 
+*/
+void Platform_Vibrate( float life, char flags );
+
+/* 
+============================================================================== 
+ 
+			INPUT 
+ 
+============================================================================== 
+*/
+// Gamepad support
+int Platform_JoyInit( int numjoy ); // returns number of connected gamepads, negative if error
+// Text input
+void Platform_EnableTextInput( qboolean enable );
+// System events
+void Platform_RunEvents( void );
+
+/* 
+============================================================================== 
+ 
+			WINDOW MANAGEMENT 
+ 
+============================================================================== 
+*/
+typedef enum
+{
+	rserr_ok,
+	rserr_invalid_fullscreen,
+	rserr_invalid_mode,
+	rserr_unknown
+} rserr_t;
+
+typedef struct vidmode_s vidmode_t;
+
+// Window
+qboolean  R_Init_Video( void );
+void      R_Free_Video( void );
+qboolean  VID_SetMode( void );
+rserr_t   R_ChangeDisplaySettings( int width, int height, qboolean fullscreen );
+int       R_MaxVideoModes();
+vidmode_t*R_GetVideoMode( int num );
+void*     GL_GetProcAddress( const char *name ); // RenderAPI requirement
+
+
+
+#endif // PLATFORM_H