renderingengine.h

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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
 
#pragma once
 
#include <vector>
#include <memory>
#include <string>
#include "irrlichttypes_extrabloated.h"
#include "debug.h"
 
class ITextureSource;
class Camera;
class Client;
class LocalPlayer;
class Hud;
class Minimap;
 
class RenderingCore;
 
class RenderingEngine
{
public:
    RenderingEngine(IEventReceiver *eventReceiver);
    ~RenderingEngine();
 
    v2u32 getWindowSize() const;
    void setResizable(bool resize);
 
    video::IVideoDriver *getVideoDriver() { return driver; }
 
    static const char *getVideoDriverName(irr::video::E_DRIVER_TYPE type);
    static const char *getVideoDriverFriendlyName(irr::video::E_DRIVER_TYPE type);
    static float getDisplayDensity();
    static v2u32 getDisplaySize();
 
    bool setupTopLevelWindow(const std::string &name);
    void setupTopLevelXorgWindow(const std::string &name);
    bool setWindowIcon();
    bool setXorgWindowIconFromPath(const std::string &icon_file);
    static bool print_video_modes();
 
    static RenderingEngine *get_instance() { return s_singleton; }
 
    static io::IFileSystem *get_filesystem()
    {
        sanity_check(s_singleton && s_singleton->m_device);
        return s_singleton->m_device->getFileSystem();
    }
 
    static video::IVideoDriver *get_video_driver()
    {
        sanity_check(s_singleton && s_singleton->m_device);
        return s_singleton->m_device->getVideoDriver();
    }
 
    static scene::IMeshCache *get_mesh_cache()
    {
        sanity_check(s_singleton && s_singleton->m_device);
        return s_singleton->m_device->getSceneManager()->getMeshCache();
    }
 
    static scene::ISceneManager *get_scene_manager()
    {
        sanity_check(s_singleton && s_singleton->m_device);
        return s_singleton->m_device->getSceneManager();
    }
 
    static irr::IrrlichtDevice *get_raw_device()
    {
        sanity_check(s_singleton && s_singleton->m_device);
        return s_singleton->m_device;
    }
 
    static u32 get_timer_time()
    {
        sanity_check(s_singleton && s_singleton->m_device &&
                s_singleton->m_device->getTimer());
        return s_singleton->m_device->getTimer()->getTime();
    }
 
    static gui::IGUIEnvironment *get_gui_env()
    {
        sanity_check(s_singleton && s_singleton->m_device);
        return s_singleton->m_device->getGUIEnvironment();
    }
 
    inline static void draw_load_screen(const std::wstring &text,
            gui::IGUIEnvironment *guienv, ITextureSource *tsrc,
            float dtime = 0, int percent = 0, bool clouds = true)
    {
        s_singleton->_draw_load_screen(
                text, guienv, tsrc, dtime, percent, clouds);
    }
 
    inline static void draw_menu_scene(
            gui::IGUIEnvironment *guienv, float dtime, bool clouds)
    {
        s_singleton->_draw_menu_scene(guienv, dtime, clouds);
    }
 
    inline static void draw_scene(video::SColor skycolor, bool show_hud,
            bool show_minimap, bool draw_wield_tool, bool draw_crosshair)
    {
        s_singleton->_draw_scene(skycolor, show_hud, show_minimap,
                draw_wield_tool, draw_crosshair);
    }
 
    inline static void initialize(Client *client, Hud *hud)
    {
        s_singleton->_initialize(client, hud);
    }
 
    inline static void finalize() { s_singleton->_finalize(); }
 
    static bool run()
    {
        sanity_check(s_singleton && s_singleton->m_device);
        return s_singleton->m_device->run();
    }
 
    static std::vector<core::vector3d<u32>> getSupportedVideoModes();
    static std::vector<irr::video::E_DRIVER_TYPE> getSupportedVideoDrivers();
 
private:
    void _draw_load_screen(const std::wstring &text, gui::IGUIEnvironment *guienv,
            ITextureSource *tsrc, float dtime = 0, int percent = 0,
            bool clouds = true);
 
    void _draw_menu_scene(gui::IGUIEnvironment *guienv, float dtime = 0,
            bool clouds = true);
 
    void _draw_scene(video::SColor skycolor, bool show_hud, bool show_minimap,
            bool draw_wield_tool, bool draw_crosshair);
 
    void _initialize(Client *client, Hud *hud);
 
    void _finalize();
 
    std::unique_ptr<RenderingCore> core;
    irr::IrrlichtDevice *m_device = nullptr;
    irr::video::IVideoDriver *driver;
    static RenderingEngine *s_singleton;
};