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irrlicht/source/Irrlicht/CIrrDeviceLinux.h

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// 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
#ifndef __C_IRR_DEVICE_LINUX_H_INCLUDED__
#define __C_IRR_DEVICE_LINUX_H_INCLUDED__
#include "IrrCompileConfig.h"
#ifdef _IRR_COMPILE_WITH_X11_DEVICE_
#include "CIrrDeviceStub.h"
#include "IrrlichtDevice.h"
#include "IImagePresenter.h"
#include "ICursorControl.h"
#include "os.h"
#ifdef _IRR_COMPILE_WITH_X11_
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#ifdef _IRR_LINUX_X11_VIDMODE_
#include <X11/extensions/xf86vmode.h>
#endif
#ifdef _IRR_LINUX_X11_RANDR_
#include <X11/extensions/Xrandr.h>
#endif
#include <X11/keysym.h>
#ifdef _IRR_LINUX_X11_XINPUT2_
#include <X11/extensions/XInput2.h>
#endif
#else
#define KeySym s32
#endif
namespace irr
{
class CIrrDeviceLinux : public CIrrDeviceStub, public video::IImagePresenter
{
public:
//! constructor
CIrrDeviceLinux(const SIrrlichtCreationParameters& param);
//! destructor
virtual ~CIrrDeviceLinux();
//! runs the device. Returns false if device wants to be deleted
virtual bool run() _IRR_OVERRIDE_;
//! Cause the device to temporarily pause execution and let other processes to run
// This should bring down processor usage without major performance loss for Irrlicht
virtual void yield() _IRR_OVERRIDE_;
//! Pause execution and let other processes to run for a specified amount of time.
virtual void sleep(u32 timeMs, bool pauseTimer) _IRR_OVERRIDE_;
//! sets the caption of the window
virtual void setWindowCaption(const wchar_t* text) _IRR_OVERRIDE_;
//! returns if window is active. if not, nothing need to be drawn
virtual bool isWindowActive() const _IRR_OVERRIDE_;
//! returns if window has focus.
virtual bool isWindowFocused() const _IRR_OVERRIDE_;
//! returns if window is minimized.
virtual bool isWindowMinimized() const _IRR_OVERRIDE_;
//! returns color format of the window.
virtual video::ECOLOR_FORMAT getColorFormat() const _IRR_OVERRIDE_;
//! presents a surface in the client area
virtual bool present(video::IImage* surface, void* windowId=0, core::rect<s32>* src=0 ) _IRR_OVERRIDE_;
//! notifies the device that it should close itself
virtual void closeDevice() _IRR_OVERRIDE_;
//! Sets if the window should be resizable in windowed mode.
virtual void setResizable(bool resize=false) _IRR_OVERRIDE_;
//! Resize the render window.
virtual void setWindowSize(const irr::core::dimension2d<u32>& size) _IRR_OVERRIDE_;
//! Minimizes the window.
virtual void minimizeWindow() _IRR_OVERRIDE_;
//! Maximizes the window.
virtual void maximizeWindow() _IRR_OVERRIDE_;
//! Restores the window size.
virtual void restoreWindow() _IRR_OVERRIDE_;
//! Get the position of this window on screen
virtual core::position2di getWindowPosition() _IRR_OVERRIDE_;
//! Activate any joysticks, and generate events for them.
virtual bool activateJoysticks(core::array<SJoystickInfo> & joystickInfo) _IRR_OVERRIDE_;
//! Set the current Gamma Value for the Display
virtual bool setGammaRamp( f32 red, f32 green, f32 blue, f32 brightness, f32 contrast ) _IRR_OVERRIDE_;
//! Get the current Gamma Value for the Display
virtual bool getGammaRamp( f32 &red, f32 &green, f32 &blue, f32 &brightness, f32 &contrast ) _IRR_OVERRIDE_;
//! gets text from the clipboard
//! \return Returns 0 if no string is in there, otherwise utf-8 text.
virtual const c8 *getTextFromClipboard() const;
//! copies text to the clipboard
//! This sets the clipboard selection and _not_ the primary selection which you have on X on the middle mouse button.
//! @param text The text in utf-8
virtual void copyToClipboard(const c8 *text) const;
//! Remove all messages pending in the system message loop
virtual void clearSystemMessages() _IRR_OVERRIDE_;
//! Get the device type
virtual E_DEVICE_TYPE getType() const _IRR_OVERRIDE_
{
return EIDT_X11;
}
#ifdef _IRR_COMPILE_WITH_X11_
// convert an Irrlicht texture to a X11 cursor
Cursor TextureToCursor(irr::video::ITexture * tex, const core::rect<s32>& sourceRect, const core::position2d<s32> &hotspot);
Cursor TextureToMonochromeCursor(irr::video::ITexture * tex, const core::rect<s32>& sourceRect, const core::position2d<s32> &hotspot);
#ifdef _IRR_LINUX_XCURSOR_
Cursor TextureToARGBCursor(irr::video::ITexture * tex, const core::rect<s32>& sourceRect, const core::position2d<s32> &hotspot);
#endif
#endif
private:
//! create the driver
void createDriver();
bool createWindow();
void createKeyMap();
void pollJoysticks();
void initXAtoms();
void initXInput2();
bool switchToFullscreen();
#ifdef _IRR_COMPILE_WITH_X11_
bool createInputContext();
void destroyInputContext();
EKEY_CODE getKeyCode(XEvent &event);
#endif
//! Implementation of the linux cursor control
class CCursorControl : public gui::ICursorControl
{
public:
CCursorControl(CIrrDeviceLinux* dev, bool null);
~CCursorControl();
//! Changes the visible state of the mouse cursor.
virtual void setVisible(bool visible) _IRR_OVERRIDE_
{
if (visible==IsVisible)
return;
IsVisible = visible;
#ifdef _IRR_COMPILE_WITH_X11_
if (!Null)
{
if ( !IsVisible )
XDefineCursor( Device->XDisplay, Device->XWindow, InvisCursor );
else
XUndefineCursor( Device->XDisplay, Device->XWindow );
}
#endif
}
//! Returns if the cursor is currently visible.
virtual bool isVisible() const _IRR_OVERRIDE_
{
return IsVisible;
}
//! Sets the new position of the cursor.
virtual void setPosition(const core::position2d<f32> &pos) _IRR_OVERRIDE_
{
setPosition(pos.X, pos.Y);
}
//! Sets the new position of the cursor.
virtual void setPosition(f32 x, f32 y) _IRR_OVERRIDE_
{
setPosition((s32)(x*Device->Width), (s32)(y*Device->Height));
}
//! Sets the new position of the cursor.
virtual void setPosition(const core::position2d<s32> &pos) _IRR_OVERRIDE_
{
setPosition(pos.X, pos.Y);
}
//! Sets the new position of the cursor.
virtual void setPosition(s32 x, s32 y) _IRR_OVERRIDE_
{
#ifdef _IRR_COMPILE_WITH_X11_
if (!Null)
{
if (UseReferenceRect)
{
// NOTE: XIWarpPointer works when X11 has set a coordinate transformation matrix for the mouse unlike XWarpPointer
// which runs into a bug mentioned here: https://gitlab.freedesktop.org/xorg/xserver/-/issues/600
// So also workaround for Irrlicht bug #450
#ifdef _IRR_LINUX_X11_XINPUT2_
if ( DeviceId != 0)
{
XIWarpPointer(Device->XDisplay,
DeviceId,
None,
Device->XWindow, 0, 0,
Device->Width,
Device->Height,
ReferenceRect.UpperLeftCorner.X + x,
ReferenceRect.UpperLeftCorner.Y + y);
}
else
#endif
{
XWarpPointer(Device->XDisplay,
None,
Device->XWindow, 0, 0,
Device->Width,
Device->Height,
ReferenceRect.UpperLeftCorner.X + x,
ReferenceRect.UpperLeftCorner.Y + y);
}
}
else
{
#ifdef _IRR_LINUX_X11_XINPUT2_
if ( DeviceId != 0)
{
XIWarpPointer(Device->XDisplay,
DeviceId,
None,
Device->XWindow, 0, 0,
Device->Width,
Device->Height, x, y);
}
else
#endif
{
XWarpPointer(Device->XDisplay,
None,
Device->XWindow, 0, 0,
Device->Width,
Device->Height, x, y);
}
}
XFlush(Device->XDisplay);
}
#endif
CursorPos.X = x;
CursorPos.Y = y;
}
//! Returns the current position of the mouse cursor.
virtual const core::position2d<s32>& getPosition(bool updateCursor) _IRR_OVERRIDE_
{
if ( updateCursor )
updateCursorPos();
return CursorPos;
}
//! Returns the current position of the mouse cursor.
virtual core::position2d<f32> getRelativePosition(bool updateCursor) _IRR_OVERRIDE_
{
if ( updateCursor )
updateCursorPos();
if (!UseReferenceRect)
{
return core::position2d<f32>(CursorPos.X / (f32)Device->Width,
CursorPos.Y / (f32)Device->Height);
}
return core::position2d<f32>(CursorPos.X / (f32)ReferenceRect.getWidth(),
CursorPos.Y / (f32)ReferenceRect.getHeight());
}
virtual void setReferenceRect(core::rect<s32>* rect=0) _IRR_OVERRIDE_
{
if (rect)
{
ReferenceRect = *rect;
UseReferenceRect = true;
// prevent division through zero and uneven sizes
if (!ReferenceRect.getHeight() || ReferenceRect.getHeight()%2)
ReferenceRect.LowerRightCorner.Y += 1;
if (!ReferenceRect.getWidth() || ReferenceRect.getWidth()%2)
ReferenceRect.LowerRightCorner.X += 1;
}
else
UseReferenceRect = false;
}
//! Sets the active cursor icon
virtual void setActiveIcon(gui::ECURSOR_ICON iconId) _IRR_OVERRIDE_;
//! Gets the currently active icon
virtual gui::ECURSOR_ICON getActiveIcon() const _IRR_OVERRIDE_
{
return ActiveIcon;
}
//! Add a custom sprite as cursor icon.
virtual gui::ECURSOR_ICON addIcon(const gui::SCursorSprite& icon) _IRR_OVERRIDE_;
//! replace the given cursor icon.
virtual void changeIcon(gui::ECURSOR_ICON iconId, const gui::SCursorSprite& icon) _IRR_OVERRIDE_;
//! Return a system-specific size which is supported for cursors. Larger icons will fail, smaller icons might work.
virtual core::dimension2di getSupportedIconSize() const _IRR_OVERRIDE_;
#ifdef _IRR_COMPILE_WITH_X11_
//! Set platform specific behavior flags.
virtual void setPlatformBehavior(gui::ECURSOR_PLATFORM_BEHAVIOR behavior) _IRR_OVERRIDE_ {PlatformBehavior = behavior; }
//! Return platform specific behavior.
virtual gui::ECURSOR_PLATFORM_BEHAVIOR getPlatformBehavior() const _IRR_OVERRIDE_ { return PlatformBehavior; }
void update();
void clearCursors();
#endif
private:
void updateCursorPos()
{
#ifdef _IRR_COMPILE_WITH_X11_
if (Null)
return;
if ( PlatformBehavior&gui::ECPB_X11_CACHE_UPDATES && !os::Timer::isStopped() )
{
u32 now = os::Timer::getTime();
if (now <= LastQuery)
return;
LastQuery = now;
}
Window tmp;
int itmp1, itmp2;
unsigned int maskreturn;
XQueryPointer(Device->XDisplay, Device->XWindow,
&tmp, &tmp,
&itmp1, &itmp2,
&CursorPos.X, &CursorPos.Y, &maskreturn);
#endif
}
CIrrDeviceLinux* Device;
core::position2d<s32> CursorPos;
core::rect<s32> ReferenceRect;
#ifdef _IRR_COMPILE_WITH_X11_
gui::ECURSOR_PLATFORM_BEHAVIOR PlatformBehavior;
u32 LastQuery;
Cursor InvisCursor;
#ifdef _IRR_LINUX_X11_XINPUT2_
int DeviceId;
#endif
struct CursorFrameX11
{
CursorFrameX11() : IconHW(0) {}
CursorFrameX11(Cursor icon) : IconHW(icon) {}
Cursor IconHW; // hardware cursor
};
struct CursorX11
{
CursorX11() {}
explicit CursorX11(Cursor iconHw, u32 frameTime=0) : FrameTime(frameTime)
{
Frames.push_back( CursorFrameX11(iconHw) );
}
core::array<CursorFrameX11> Frames;
u32 FrameTime;
};
core::array<CursorX11> Cursors;
void initCursors();
#endif
bool IsVisible;
bool Null;
bool UseReferenceRect;
gui::ECURSOR_ICON ActiveIcon;
u32 ActiveIconStartTime;
};
friend class CCursorControl;
#ifdef _IRR_COMPILE_WITH_X11_
friend class COpenGLDriver;
Display *XDisplay;
XVisualInfo* VisualInfo;
int Screennr;
Window XWindow;
XSetWindowAttributes WndAttributes;
XSizeHints* StdHints;
XImage* SoftwareImage;
XIM XInputMethod;
XIC XInputContext;
bool HasNetWM;
// text is utf-8
mutable core::stringc Clipboard;
#endif
u32 Width, Height;
bool WindowHasFocus;
bool WindowMinimized;
bool ExternalWindow;
int AutorepeatSupport;
struct SKeyMap
{
SKeyMap() {}
SKeyMap(s32 x11, s32 win32)
: X11Key(x11), Win32Key(win32)
{
}
KeySym X11Key;
s32 Win32Key;
bool operator<(const SKeyMap& o) const
{
return X11Key<o.X11Key;
}
};
core::array<SKeyMap> KeyMap;
#if defined(_IRR_COMPILE_WITH_JOYSTICK_EVENTS_)
struct JoystickInfo
{
int fd;
int axes;
int buttons;
SEvent persistentData;
JoystickInfo() : fd(-1), axes(0), buttons(0) { }
};
core::array<JoystickInfo> ActiveJoysticks;
#endif
#if defined(_IRR_LINUX_X11_XINPUT2_)
int currentTouchedCount;
#endif
};
} // end namespace irr
#endif // _IRR_COMPILE_WITH_X11_DEVICE_
#endif // __C_IRR_DEVICE_LINUX_H_INCLUDED__
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