Isolate irrlicht references and use a singleton (#6041)

* Add Device3D class which will contain IrrlichtDevice interface

move getSupportedVideoDrivers to Device3D

Add Device3D singleton & use it in various places

Rename Device3D to Rendering engine & add helper functions to various device pointers

More singleton work

RenderingEngine owns draw_load_screen

move draw functions to RenderingEngine

Reduce IrrlichtDevice exposure and guienvironment

RenderingEngine: Expose get_timer_time() to remove device from guiEngine

Make irrlichtdevice & scene manager less exposed

* Code style fixes

* Move porting::getVideoDriverName, getVideoDriverFriendlyName, getDisplayDensity, getDisplaySize to RenderingEngine

Fix XORG_USED macro -> RenderingEngine + create_engine_device from RenderingEngine constructor directly

* enum paralax => enum parallax

1 files changed, 1 insertions, 28 deletions

diff --git a/src/porting.h b/src/porting.h
index 05614543a..216553141 100644
--- a/src/porting.h
+++ b/src/porting.h
@@ -61,7 +61,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 	// Use standard Posix macro for Linux
 	#if (defined(linux) || defined(__linux)) && !defined(__linux__)
-		#define __linux__ 
+		#define __linux__
 	#endif
 	#if (defined(__linux__) || defined(__GNU__)) && !defined(_GNU_SOURCE)
 		#define _GNU_SOURCE
@@ -178,8 +178,6 @@ void initializePaths();
 */
 std::string get_sysinfo();
 
-void initIrrlicht(irr::IrrlichtDevice * );
-
 
 // Monotonic counter getters.
 
@@ -281,19 +279,6 @@ inline u64 getDeltaMs(u64 old_time_ms, u64 new_time_ms)
 	}
 }
 
-
-#ifndef SERVER
-float getDisplayDensity();
-
-v2u32 getDisplaySize();
-v2u32 getWindowSize();
-
-std::vector<core::vector3d<u32> > getSupportedVideoModes();
-std::vector<irr::video::E_DRIVER_TYPE> getSupportedVideoDrivers();
-const char *getVideoDriverName(irr::video::E_DRIVER_TYPE type);
-const char *getVideoDriverFriendlyName(irr::video::E_DRIVER_TYPE type);
-#endif
-
 inline const char *getPlatformName()
 {
 	return
@@ -338,18 +323,6 @@ inline const char *getPlatformName()
 	;
 }
 
-void setXorgClassHint(const video::SExposedVideoData &video_data,
-	const std::string &name);
-
-bool setWindowIcon(IrrlichtDevice *device);
-
-bool setXorgWindowIconFromPath(IrrlichtDevice *device,
-	const std::string &icon_file);
-
-// This only needs to be called at the start of execution, since all future
-// threads in the process inherit this exception handler
-void setWin32ExceptionHandler();
-
 bool secure_rand_fill_buf(void *buf, size_t len);
 
 // This attaches to the parents process console, or creates a new one if it doesnt exist.