Irrlicht Engine

Code: Select all

// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#include "IrrCompileConfig.h"


#ifdef _IRR_COMPILE_WITH_SDL_DEVICE_

#include "CIrrDeviceSDL.h"
#include "IEventReceiver.h"
#include "irrList.h"
#include "os.h"
#include "CTimer.h"
#include "irrString.h"
#include "Keycodes.h"
#include "COSOperator.h"
#include <stdio.h>
#include <stdlib.h>
#include "SIrrCreationParameters.h"
#include <SDL2/SDL.h>
#include <SDL2/SDL_syswm.h>
#include <SDL2/SDL_video.h>

#ifdef _MSC_VER
#pragma comment(lib, "SDL.lib")
#endif // _MSC_VER

namespace irr
{
	namespace video
	{

		#ifdef _IRR_COMPILE_WITH_DIRECT3D_8_
		IVideoDriver* createDirectX8Driver(const irr::SIrrlichtCreationParameters& params,
			io::IFileSystem* io, HWND window);
		#endif

		#ifdef _IRR_COMPILE_WITH_DIRECT3D_9_
		IVideoDriver* createDirectX9Driver(const irr::SIrrlichtCreationParameters& params,
			io::IFileSystem* io, HWND window);
		#endif

		#ifdef _IRR_COMPILE_WITH_OPENGL_
		IVideoDriver* createOpenGLDriver(const SIrrlichtCreationParameters& params,
				io::IFileSystem* io, CIrrDeviceSDL* device);
		#endif
	} // end namespace video

} // end namespace irr


namespace irr
{

//! constructor
CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
	: CIrrDeviceStub(param),
	window((SDL_Window*)param.WindowId), SDL_Flags(SDL_WINDOW_SHOWN),
	MouseX(0), MouseY(0), MouseButtonStates(0),
	Width(param.WindowSize.Width), Height(param.WindowSize.Height),
	Resizable(false), WindowMinimized(false)
{
    //os::Printer::Logger->setLogLevel(ELL_NONE);
	#ifdef _DEBUG
	setDebugName("CIrrDeviceSDL");
	#endif

	// Initialize SDL... Timer for sleep, video for the obvious, and
	// noparachute prevents SDL from catching fatal errors.
	if (SDL_Init( SDL_INIT_TIMER|SDL_INIT_VIDEO|
#if defined(_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
				SDL_INIT_JOYSTICK|
#endif
				SDL_INIT_NOPARACHUTE ) < 0)
	{
		os::Printer::log( "Unable to initialize SDL!", SDL_GetError());
		Close = true;
	}

#if defined(_IRR_WINDOWS_)
	SDL_setenv("SDL_VIDEODRIVER", "directx", 1);
#elif defined(_IRR_OSX_PLATFORM_)
	SDL_setenv("SDL_VIDEODRIVER", "Quartz", 1);
#else
	SDL_setenv("SDL_VIDEODRIVER", "x11", 1);
#endif
//	SDL_putenv("SDL_WINDOWID=");

	SDL_version version_info;
	SDL_GetVersion(&version_info);

	core::stringc sdlversion = "SDL Version ";
	sdlversion += version_info.major;
	sdlversion += ".";
	sdlversion += version_info.minor;
	sdlversion += ".";
	sdlversion += version_info.patch;

	Operator = new COSOperator(sdlversion);
	os::Printer::log(sdlversion.c_str(), ELL_INFORMATION);

	// create keymap
	createKeyMap();
	// enable key to character translation
	//SDL_EnableUNICODE(1);

	//(void)SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);

	if ( CreationParams.Fullscreen )
		SDL_Flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
	if (CreationParams.DriverType == video::EDT_OPENGL)
		SDL_Flags |= SDL_WINDOW_OPENGL;

	// create window
	if (CreationParams.DriverType != video::EDT_NULL)
	{
		// create the window, only if we do not use the null device
		createWindow();
	}

	// create cursor control
	CursorControl = new CCursorControl(this);

	// create driver
	createDriver();

	if (VideoDriver)
		createGUIAndScene();
}


//! destructor
CIrrDeviceSDL::~CIrrDeviceSDL()
{
#if defined(_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
	const u32 numJoysticks = Joysticks.size();
	for (u32 i=0; i<numJoysticks; ++i)
		SDL_JoystickClose(Joysticks[i]);
#endif
	SDL_Quit();
}


bool CIrrDeviceSDL::createWindow()
{
    os::Printer::log("Create SDL2 Window" );
	if ( Close )
		return false;

	if (CreationParams.DriverType == video::EDT_OPENGL)
	{
	    SDL_GL_SetAttribute( SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE );
	    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
        SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);

		if (CreationParams.Bits==16)
		{
			SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 4 );
			SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 4 );
			SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 4 );
			SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, CreationParams.WithAlphaChannel?1:0 );
		}
		else
		{
			SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
			SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
			SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
			SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, CreationParams.WithAlphaChannel?8:0 );
		}
		SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, CreationParams.ZBufferBits);
		if (CreationParams.Doublebuffer)
			SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
		if (CreationParams.Stereobuffer)
			SDL_GL_SetAttribute( SDL_GL_STEREO, 1 );
		if (CreationParams.AntiAlias>1)
		{
			SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 1 );
			SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, CreationParams.AntiAlias );
		}

		if ( !window )
			window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
		if ( !window && CreationParams.AntiAlias>1)
		{
			while (--CreationParams.AntiAlias>1)
			{
				SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, CreationParams.AntiAlias );
				window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
				if (window)
					break;
			}
			if ( !window )
			{
				SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 0 );
				SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, 0 );
				window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
				if (window)
					os::Printer::log("AntiAliasing disabled due to lack of support!" );
			}
		}
	}
	else if ( !window )
		window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);

	if ( !window && CreationParams.Doublebuffer)
	{
		// Try single buffer
		if (CreationParams.DriverType == video::EDT_OPENGL)
			SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
		//SDL_Flags &= ~SDL_DOUBLEBUF;
		window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, Width, Height, SDL_Flags);
	}
	if ( !window )
	{
		os::Printer::log( "Could not initialize display!" );
		return false;
	}

	os::Printer::log( "SDL Device Initialized", SDL_GetError());

	return true;
}


//! create the driver
void CIrrDeviceSDL::createDriver()
{
	switch(CreationParams.DriverType)
	{
	case video::EDT_DIRECT3D8:
		#ifdef _IRR_COMPILE_WITH_DIRECT3D_8_
		os::Printer::log("SDL device does not support DIRECT38 driver. Try another one.", ELL_ERROR);
		#else
		os::Printer::log("DIRECT3D8 Driver was not compiled into this dll. Try another one.", ELL_ERROR);
		#endif // _IRR_COMPILE_WITH_DIRECT3D_8_

		break;

	case video::EDT_DIRECT3D9:
		#ifdef _IRR_COMPILE_WITH_DIRECT3D_9_
		os::Printer::log("SDL device does not support DIRECT3D9 driver. Try another one.", ELL_ERROR);
		#else
		os::Printer::log("DIRECT3D9 Driver was not compiled into this dll. Try another one.", ELL_ERROR);
		#endif // _IRR_COMPILE_WITH_DIRECT3D_9_

		break;

	case video::EDT_SOFTWARE:
		#ifdef _IRR_COMPILE_WITH_SOFTWARE_
		VideoDriver = video::createSoftwareDriver(CreationParams.WindowSize, CreationParams.Fullscreen, FileSystem, this);
		#else
		os::Printer::log("No Software driver support compiled in.", ELL_ERROR);
		#endif
		break;

	case video::EDT_BURNINGSVIDEO:
		#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
		VideoDriver = video::createBurningVideoDriver(CreationParams, FileSystem, this);
		#else
		os::Printer::log("Burning's video driver was not compiled in.", ELL_ERROR);
		#endif
		break;

	case video::EDT_OPENGL:
		#ifdef _IRR_COMPILE_WITH_OPENGL_
		VideoDriver = video::createOpenGLDriver(CreationParams, FileSystem, this);
		#else
		os::Printer::log("No OpenGL support compiled in.", ELL_ERROR);
		#endif
		break;

	case video::EDT_NULL:
		VideoDriver = video::createNullDriver(FileSystem, CreationParams.WindowSize);
		break;

	default:
		os::Printer::log("Unable to create video driver of unknown type.", ELL_ERROR);
		break;
	}
}


//! runs the device. Returns false if device wants to be deleted
bool CIrrDeviceSDL::run()
{
	//This is a place holder. RCBasic takes care of events during update().

	os::Timer::tick();

	return true;
}

//! Activate any joysticks, and generate events for them.
bool CIrrDeviceSDL::activateJoysticks(core::array<SJoystickInfo> & joystickInfo)
{
    //This is a place holder. RCBasic will init joysticks during its init phase.
	return true;
}



//! pause execution temporarily
void CIrrDeviceSDL::yield()
{
	SDL_Delay(0);
}


//! pause execution for a specified time
void CIrrDeviceSDL::sleep(u32 timeMs, bool pauseTimer)
{
	const bool wasStopped = Timer ? Timer->isStopped() : true;
	if (pauseTimer && !wasStopped)
		Timer->stop();

	SDL_Delay(timeMs);

	if (pauseTimer && !wasStopped)
		Timer->start();
}


//! sets the caption of the window
void CIrrDeviceSDL::setWindowCaption(const wchar_t* text)
{
	core::stringc textc = text;
	SDL_SetWindowTitle(window, textc.c_str( ) );
}


//! presents a surface in the client area
bool CIrrDeviceSDL::present(video::IImage* surface, void* windowId, core::rect<s32>* srcClip)
{
	return true;
}


//! notifies the device that it should close itself
void CIrrDeviceSDL::closeDevice()
{
	Close = true;
}


//! \return Pointer to a list with all video modes supported
video::IVideoModeList* CIrrDeviceSDL::getVideoModeList()
{
	return VideoModeList;
}


//! Sets if the window should be resizable in windowed mode.
void CIrrDeviceSDL::setResizable(bool resize)
{
}


//! Minimizes window if possible
void CIrrDeviceSDL::minimizeWindow()
{
}


//! Maximize window
void CIrrDeviceSDL::maximizeWindow()
{
	// do nothing
}


//! Restore original window size
void CIrrDeviceSDL::restoreWindow()
{
	// do nothing
}


//! returns if window is active. if not, nothing need to be drawn
bool CIrrDeviceSDL::isWindowActive() const
{
	return true;
}


//! returns if window has focus.
bool CIrrDeviceSDL::isWindowFocused() const
{
	return true;
}


//! returns if window is minimized.
bool CIrrDeviceSDL::isWindowMinimized() const
{
	return WindowMinimized;
}


//! Set the current Gamma Value for the Display
bool CIrrDeviceSDL::setGammaRamp( f32 red, f32 green, f32 blue, f32 brightness, f32 contrast )
{
	/*
	// todo: Gamma in SDL takes ints, what does Irrlicht use?
	return (SDL_SetGamma(red, green, blue) != -1);
	*/
	return false;
}

//! Get the current Gamma Value for the Display
bool CIrrDeviceSDL::getGammaRamp( f32 &red, f32 &green, f32 &blue, f32 &brightness, f32 &contrast )
{
/*	brightness = 0.f;
	contrast = 0.f;
	return (SDL_GetGamma(&red, &green, &blue) != -1);*/
	return false;
}

//! returns color format of the window.
video::ECOLOR_FORMAT CIrrDeviceSDL::getColorFormat() const
{
    return CIrrDeviceStub::getColorFormat();
}


void CIrrDeviceSDL::createKeyMap()
{

}

} // end namespace irr

#endif // _IRR_COMPILE_WITH_SDL_DEVICE_

Code: Select all

// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
// This device code is based on the original SDL device implementation
// contributed by Shane Parker (sirshane).

#ifndef __C_IRR_DEVICE_SDL_H_INCLUDED__
#define __C_IRR_DEVICE_SDL_H_INCLUDED__

#include "IrrCompileConfig.h"


#ifdef _IRR_COMPILE_WITH_SDL_DEVICE_

#include "IrrlichtDevice.h"
#include "CIrrDeviceStub.h"
#include "IImagePresenter.h"
#include "ICursorControl.h"

#include <SDL2/SDL.h>
#include <SDL2/SDL_syswm.h>

namespace irr
{

	class CIrrDeviceSDL : public CIrrDeviceStub, video::IImagePresenter
	{
	public:

	    SDL_Window* window;
		SDL_GLContext context;

		//! constructor
		CIrrDeviceSDL(const SIrrlichtCreationParameters& param);

		//! destructor
		virtual ~CIrrDeviceSDL();

		//! runs the device. Returns false if device wants to be deleted
		virtual bool run();

		//! pause execution temporarily
		virtual void yield();

		//! pause execution for a specified time
		virtual void sleep(u32 timeMs, bool pauseTimer);

		//! sets the caption of the window
		virtual void setWindowCaption(const wchar_t* text);

		//! returns if window is active. if not, nothing need to be drawn
		virtual bool isWindowActive() const;

		//! returns if window has focus.
		bool isWindowFocused() const;

		//! returns if window is minimized.
		bool isWindowMinimized() const;

		//! returns color format of the window.
		video::ECOLOR_FORMAT getColorFormat() const;

		//! presents a surface in the client area
		virtual bool present(video::IImage* surface, void* windowId=0, core::rect<s32>* src=0);

		//! notifies the device that it should close itself
		virtual void closeDevice();

		//! \return Returns a pointer to a list with all video modes supported
		video::IVideoModeList* getVideoModeList();

		//! Sets if the window should be resizable in windowed mode.
		virtual void setResizable(bool resize=false);

		//! Minimizes the window.
		virtual void minimizeWindow();

		//! Maximizes the window.
		virtual void maximizeWindow();

		//! Restores the window size.
		virtual void restoreWindow();

		//! Activate any joysticks, and generate events for them.
		virtual bool activateJoysticks(core::array<SJoystickInfo> & joystickInfo);

		//! Set the current Gamma Value for the Display
		virtual bool setGammaRamp( f32 red, f32 green, f32 blue, f32 brightness, f32 contrast );

		//! Get the current Gamma Value for the Display
		virtual bool getGammaRamp( f32 &red, f32 &green, f32 &blue, f32 &brightness, f32 &contrast );

		//! Get the device type
		virtual E_DEVICE_TYPE getType() const
		{
				return EIDT_SDL;
		}

		virtual void renderSwap()
		{
		    SDL_GL_SwapWindow(this->window);
		}

		//! Implementation of the linux cursor control
		class CCursorControl : public gui::ICursorControl
		{
		public:

			CCursorControl(CIrrDeviceSDL* dev)
				: Device(dev), IsVisible(true)
			{
			}

			//! Changes the visible state of the mouse cursor.
			virtual void setVisible(bool visible)
			{
				IsVisible = visible;
				if ( visible )
					SDL_ShowCursor( SDL_ENABLE );
				else
					SDL_ShowCursor( SDL_DISABLE );
			}

			//! Returns if the cursor is currently visible.
			virtual bool isVisible() const
			{
				return IsVisible;
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(const core::position2d<f32> &pos)
			{
				setPosition(pos.X, pos.Y);
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(f32 x, f32 y)
			{
				setPosition((s32)(x*Device->Width), (s32)(y*Device->Height));
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(const core::position2d<s32> &pos)
			{
				setPosition(pos.X, pos.Y);
			}

			//! Sets the new position of the cursor.
			virtual void setPosition(s32 x, s32 y)
			{
				SDL_WarpMouseInWindow( Device->window, x, y );
			}

			//! Returns the current position of the mouse cursor.
			virtual const core::position2d<s32>& getPosition()
			{
				updateCursorPos();
				return CursorPos;
			}

			//! Returns the current position of the mouse cursor.
			virtual core::position2d<f32> getRelativePosition()
			{
				updateCursorPos();
				return core::position2d<f32>(CursorPos.X / (f32)Device->Width,
					CursorPos.Y / (f32)Device->Height);
			}

			virtual void setReferenceRect(core::rect<s32>* rect=0)
			{
			}

		private:

			void updateCursorPos()
			{
				CursorPos.X = Device->MouseX;
				CursorPos.Y = Device->MouseY;

				if (CursorPos.X < 0)
					CursorPos.X = 0;
				if (CursorPos.X > (s32)Device->Width)
					CursorPos.X = Device->Width;
				if (CursorPos.Y < 0)
					CursorPos.Y = 0;
				if (CursorPos.Y > (s32)Device->Height)
					CursorPos.Y = Device->Height;
			}

			CIrrDeviceSDL* Device;
			core::position2d<s32> CursorPos;
			bool IsVisible;
		};

	private:

		//! create the driver
		void createDriver();

		bool createWindow();

		void createKeyMap();

		SDL_Surface* Screen;
		int SDL_Flags;
#if defined(_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
		core::array<SDL_Joystick*> Joysticks;
#endif

		s32 MouseX, MouseY;
		u32 MouseButtonStates;

		u32 Width, Height;



		bool Resizable;
		bool WindowHasFocusDeprecated;	// TODO: variable only kept to avoid breaking binary compatibility in 1.8. Will be removed in 1.9
		bool WindowMinimized;

		struct SKeyMap
		{
			SKeyMap() {}
			SKeyMap(s32 x11, s32 win32)
				: SDLKey(x11), Win32Key(win32)
			{
			}

			s32 SDLKey;
			s32 Win32Key;

			bool operator<(const SKeyMap& o) const
			{
				return SDLKey<o.SDLKey;
			}
		};

		core::array<SKeyMap> KeyMap;
		SDL_SysWMinfo Info;
	};

} // end namespace irr

#endif // _IRR_COMPILE_WITH_SDL_DEVICE_
#endif // __C_IRR_DEVICE_SDL_H_INCLUDED__