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OpenSceneGraph/src/osgViewer/GraphicsWindowX11.cpp

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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
/* Note, elements of GraphicsWindowX11 have used Prodcer/RenderSurface_X11.cpp as both
* a guide to use of X11/GLX and copying directly in the case of setBorder().
* These elements are licensed under OSGPL as above, with Copyright (C) 2001-2004 Don Burns.
*/
// TODO:
// implement http://www.opengl.org/registry/specs/OML/glx_swap_method.txt
// Fix toggling of fullscreen to window mode as it does enable window decoration with recent linux window managers
#include <osgViewer/api/X11/GraphicsWindowX11>
#include <osgViewer/api/X11/PixelBufferX11>
#include <osg/DeleteHandler>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xmd.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
#include <X11/Xmd.h> /* For CARD16 */
#ifdef OSGVIEWER_USE_XRANDR
#include <X11/extensions/Xrandr.h>
#endif
#include <unistd.h>
using namespace osgViewer;
#ifdef OSG_USE_EGL
bool checkEGLError(const char* str)
{
EGLint err = eglGetError();
if (err != EGL_SUCCESS)
{
OSG_WARN<<"Warning: "<<str<<" EGL error "<<std::hex<<err<<std::dec<<std::endl;
return true;
}
else
{
// OSG_WARN<<"EGL reports no errors: "<<str<<std::endl;
return false;
}
}
#endif
class X11KeyboardMap
{
public:
X11KeyboardMap()
{
#if 0
_extendKeymap[8 ] = osgGA::GUIEventAdapter::KEY_BackSpace;
_extendKeymap[127 ] = osgGA::GUIEventAdapter::KEY_Delete;
_extendKeymap[27 ] = osgGA::GUIEventAdapter::KEY_Escape;
// _extendKeymap[13 ] = osgGA::GUIEventAdapter::KEY_Enter;
#endif
_extendedKeymap[XK_Escape ] = osgGA::GUIEventAdapter::KEY_Escape;
_extendedKeymap[XK_F1 ] = osgGA::GUIEventAdapter::KEY_F1;
_extendedKeymap[XK_F2 ] = osgGA::GUIEventAdapter::KEY_F2;
_extendedKeymap[XK_F3 ] = osgGA::GUIEventAdapter::KEY_F3;
_extendedKeymap[XK_F4 ] = osgGA::GUIEventAdapter::KEY_F4;
_extendedKeymap[XK_F5 ] = osgGA::GUIEventAdapter::KEY_F5;
_extendedKeymap[XK_F6 ] = osgGA::GUIEventAdapter::KEY_F6;
_extendedKeymap[XK_F7 ] = osgGA::GUIEventAdapter::KEY_F7;
_extendedKeymap[XK_F8 ] = osgGA::GUIEventAdapter::KEY_F8;
_extendedKeymap[XK_F9 ] = osgGA::GUIEventAdapter::KEY_F9;
_extendedKeymap[XK_F10 ] = osgGA::GUIEventAdapter::KEY_F10;
_extendedKeymap[XK_F11 ] = osgGA::GUIEventAdapter::KEY_F11;
_extendedKeymap[XK_F12 ] = osgGA::GUIEventAdapter::KEY_F12;
_extendedKeymap[XK_quoteleft ] = '`';
_extendedKeymap[XK_minus ] = '-';
_extendedKeymap[XK_equal ] = '=';
_extendedKeymap[XK_BackSpace ] = osgGA::GUIEventAdapter::KEY_BackSpace;
_extendedKeymap[XK_Tab ] = osgGA::GUIEventAdapter::KEY_Tab;
_extendedKeymap[XK_bracketleft ] = '[';
_extendedKeymap[XK_bracketright ] = ']';
_extendedKeymap[XK_backslash ] = '\\';
_extendedKeymap[XK_Caps_Lock ] = osgGA::GUIEventAdapter::KEY_Caps_Lock;
_extendedKeymap[XK_semicolon ] = ';';
_extendedKeymap[XK_apostrophe ] = '\'';
_extendedKeymap[XK_Return ] = osgGA::GUIEventAdapter::KEY_Return;
_extendedKeymap[XK_comma ] = ',';
_extendedKeymap[XK_period ] = '.';
_extendedKeymap[XK_slash ] = '/';
_extendedKeymap[XK_space ] = ' ';
_extendedKeymap[XK_Shift_L ] = osgGA::GUIEventAdapter::KEY_Shift_L;
_extendedKeymap[XK_Shift_R ] = osgGA::GUIEventAdapter::KEY_Shift_R;
_extendedKeymap[XK_Control_L ] = osgGA::GUIEventAdapter::KEY_Control_L;
_extendedKeymap[XK_Control_R ] = osgGA::GUIEventAdapter::KEY_Control_R;
_extendedKeymap[XK_Meta_L ] = osgGA::GUIEventAdapter::KEY_Meta_L;
_extendedKeymap[XK_Meta_R ] = osgGA::GUIEventAdapter::KEY_Meta_R;
_extendedKeymap[XK_Alt_L ] = osgGA::GUIEventAdapter::KEY_Alt_L;
_extendedKeymap[XK_Alt_R ] = osgGA::GUIEventAdapter::KEY_Alt_R;
_extendedKeymap[XK_Super_L ] = osgGA::GUIEventAdapter::KEY_Super_L;
_extendedKeymap[XK_Super_R ] = osgGA::GUIEventAdapter::KEY_Super_R;
_extendedKeymap[XK_Hyper_L ] = osgGA::GUIEventAdapter::KEY_Hyper_L;
_extendedKeymap[XK_Hyper_R ] = osgGA::GUIEventAdapter::KEY_Hyper_R;
_extendedKeymap[XK_Menu ] = osgGA::GUIEventAdapter::KEY_Menu;
_extendedKeymap[XK_Print ] = osgGA::GUIEventAdapter::KEY_Print;
_extendedKeymap[XK_Scroll_Lock ] = osgGA::GUIEventAdapter::KEY_Scroll_Lock;
_extendedKeymap[XK_Pause ] = osgGA::GUIEventAdapter::KEY_Pause;
_extendedKeymap[XK_Home ] = osgGA::GUIEventAdapter::KEY_Home;
_extendedKeymap[XK_Page_Up ] = osgGA::GUIEventAdapter::KEY_Page_Up;
_extendedKeymap[XK_End ] = osgGA::GUIEventAdapter::KEY_End;
_extendedKeymap[XK_Page_Down ] = osgGA::GUIEventAdapter::KEY_Page_Down;
_extendedKeymap[XK_Delete ] = osgGA::GUIEventAdapter::KEY_Delete;
_extendedKeymap[XK_Insert ] = osgGA::GUIEventAdapter::KEY_Insert;
_extendedKeymap[XK_Left ] = osgGA::GUIEventAdapter::KEY_Left;
_extendedKeymap[XK_Up ] = osgGA::GUIEventAdapter::KEY_Up;
_extendedKeymap[XK_Right ] = osgGA::GUIEventAdapter::KEY_Right;
_extendedKeymap[XK_Down ] = osgGA::GUIEventAdapter::KEY_Down;
_extendedKeymap[XK_Num_Lock ] = osgGA::GUIEventAdapter::KEY_Num_Lock;
_extendedKeymap[XK_KP_Divide ] = osgGA::GUIEventAdapter::KEY_KP_Divide;
_extendedKeymap[XK_KP_Multiply ] = osgGA::GUIEventAdapter::KEY_KP_Multiply;
_extendedKeymap[XK_KP_Subtract ] = osgGA::GUIEventAdapter::KEY_KP_Subtract;
_extendedKeymap[XK_KP_Add ] = osgGA::GUIEventAdapter::KEY_KP_Add;
_extendedKeymap[XK_KP_Home ] = osgGA::GUIEventAdapter::KEY_KP_Home;
_extendedKeymap[XK_KP_Up ] = osgGA::GUIEventAdapter::KEY_KP_Up;
_extendedKeymap[XK_KP_Page_Up ] = osgGA::GUIEventAdapter::KEY_KP_Page_Up;
_extendedKeymap[XK_KP_Left ] = osgGA::GUIEventAdapter::KEY_KP_Left;
_extendedKeymap[XK_KP_Begin ] = osgGA::GUIEventAdapter::KEY_KP_Begin;
_extendedKeymap[XK_KP_Right ] = osgGA::GUIEventAdapter::KEY_KP_Right;
_extendedKeymap[XK_KP_End ] = osgGA::GUIEventAdapter::KEY_KP_End;
_extendedKeymap[XK_KP_Down ] = osgGA::GUIEventAdapter::KEY_KP_Down;
_extendedKeymap[XK_KP_Page_Down ] = osgGA::GUIEventAdapter::KEY_KP_Page_Down;
_extendedKeymap[XK_KP_Insert ] = osgGA::GUIEventAdapter::KEY_KP_Insert;
_extendedKeymap[XK_KP_Delete ] = osgGA::GUIEventAdapter::KEY_KP_Delete;
_extendedKeymap[XK_KP_Enter ] = osgGA::GUIEventAdapter::KEY_KP_Enter;
_standardKeymap[XK_1 ] = '1';
_standardKeymap[XK_2 ] = '2';
_standardKeymap[XK_3 ] = '3';
_standardKeymap[XK_4 ] = '4';
_standardKeymap[XK_5 ] = '5';
_standardKeymap[XK_6 ] = '6';
_standardKeymap[XK_7 ] = '7';
_standardKeymap[XK_8 ] = '8';
_standardKeymap[XK_9 ] = '9';
_standardKeymap[XK_0 ] = '0';
_standardKeymap[XK_A ] = 'A';
_standardKeymap[XK_B ] = 'B';
_standardKeymap[XK_C ] = 'C';
_standardKeymap[XK_D ] = 'D';
_standardKeymap[XK_E ] = 'E';
_standardKeymap[XK_F ] = 'F';
_standardKeymap[XK_G ] = 'G';
_standardKeymap[XK_H ] = 'H';
_standardKeymap[XK_I ] = 'I';
_standardKeymap[XK_J ] = 'J';
_standardKeymap[XK_K ] = 'K';
_standardKeymap[XK_L ] = 'L';
_standardKeymap[XK_M ] = 'M';
_standardKeymap[XK_N ] = 'N';
_standardKeymap[XK_O ] = 'O';
_standardKeymap[XK_P ] = 'P';
_standardKeymap[XK_Q ] = 'Q';
_standardKeymap[XK_R ] = 'R';
_standardKeymap[XK_S ] = 'S';
_standardKeymap[XK_T ] = 'T';
_standardKeymap[XK_U ] = 'U';
_standardKeymap[XK_V ] = 'V';
_standardKeymap[XK_W ] = 'W';
_standardKeymap[XK_X ] = 'X';
_standardKeymap[XK_Y ] = 'Y';
_standardKeymap[XK_Z ] = 'Z';
_standardKeymap[XK_a ] = 'a';
_standardKeymap[XK_b ] = 'b';
_standardKeymap[XK_c ] = 'c';
_standardKeymap[XK_d ] = 'd';
_standardKeymap[XK_e ] = 'e';
_standardKeymap[XK_f ] = 'f';
_standardKeymap[XK_g ] = 'g';
_standardKeymap[XK_h ] = 'h';
_standardKeymap[XK_i ] = 'i';
_standardKeymap[XK_j ] = 'j';
_standardKeymap[XK_k ] = 'k';
_standardKeymap[XK_l ] = 'l';
_standardKeymap[XK_m ] = 'm';
_standardKeymap[XK_n ] = 'n';
_standardKeymap[XK_o ] = 'o';
_standardKeymap[XK_p ] = 'p';
_standardKeymap[XK_q ] = 'q';
_standardKeymap[XK_r ] = 'r';
_standardKeymap[XK_s ] = 's';
_standardKeymap[XK_t ] = 't';
_standardKeymap[XK_u ] = 'u';
_standardKeymap[XK_v ] = 'v';
_standardKeymap[XK_w ] = 'w';
_standardKeymap[XK_x ] = 'x';
_standardKeymap[XK_y ] = 'y';
_standardKeymap[XK_z ] = 'z';
}
~X11KeyboardMap() {}
int remapKey(int key)
{
KeyMap::iterator itr = _extendedKeymap.find(key);
if (itr != _extendedKeymap.end()) return itr->second;
itr = _standardKeymap.find(key);
if (itr != _standardKeymap.end()) return itr->second;
return key;
}
bool remapExtendedKey(int& key)
{
KeyMap::iterator itr = _extendedKeymap.find(key);
if (itr != _extendedKeymap.end())
{
key = itr->second;
return true;
}
else return false;
}
protected:
typedef std::map<int, int> KeyMap;
KeyMap _extendedKeymap;
KeyMap _standardKeymap;
};
static bool remapExtendedX11Key(int& key)
{
static X11KeyboardMap s_x11KeyboardMap;
return s_x11KeyboardMap.remapExtendedKey(key);
}
// Functions to handle key maps of type char[32] as contained in
// an XKeymapEvent or returned by XQueryKeymap().
static inline bool keyMapGetKey(const char* map, unsigned int key)
{
return (map[(key & 0xff) / 8] & (1 << (key & 7))) != 0;
}
static inline void keyMapSetKey(char* map, unsigned int key)
{
map[(key & 0xff) / 8] |= (1 << (key & 7));
}
static inline void keyMapClearKey(char* map, unsigned int key)
{
map[(key & 0xff) / 8] &= ~(1 << (key & 7));
}
GraphicsWindowX11::~GraphicsWindowX11()
{
close(true);
}
Display* GraphicsWindowX11::getDisplayToUse() const
{
if (_threadOfLastMakeCurrent==0)
{
return _display;
}
if (OpenThreads::Thread::CurrentThread()==_threadOfLastMakeCurrent)
{
return _display;
}
else
{
return _eventDisplay;
}
}
bool GraphicsWindowX11::createVisualInfo()
{
if (_visualInfo)
{
#ifdef OSG_USE_EGL
delete _visualInfo;
#else
XFree(_visualInfo);
#endif
_visualInfo = 0;
}
if( _window != 0 )
{
XWindowAttributes watt;
XGetWindowAttributes( _display, _window, &watt );
XVisualInfo temp;
temp.visualid = XVisualIDFromVisual(watt.visual);
int n;
_visualInfo = XGetVisualInfo( _display, VisualIDMask, &temp, &n );
}
else
{
#ifdef OSG_USE_EGL
_visualInfo = new XVisualInfo;
int depth = DefaultDepth( _display, _traits->screenNum );
if (XMatchVisualInfo( _display, _traits->screenNum, depth, TrueColor, _visualInfo )==0)
{
OSG_NOTICE<<"GraphicsWindowX11::createVisualInfo() failed."<<std::endl;
return false;
}
#else
typedef std::vector<int> Attributes;
Attributes attributes;
attributes.push_back(GLX_USE_GL);
attributes.push_back(GLX_RGBA);
if (_traits->doubleBuffer) attributes.push_back(GLX_DOUBLEBUFFER);
if (_traits->quadBufferStereo) attributes.push_back(GLX_STEREO);
attributes.push_back(GLX_RED_SIZE); attributes.push_back(_traits->red);
attributes.push_back(GLX_GREEN_SIZE); attributes.push_back(_traits->green);
attributes.push_back(GLX_BLUE_SIZE); attributes.push_back(_traits->blue);
attributes.push_back(GLX_DEPTH_SIZE); attributes.push_back(_traits->depth);
if (_traits->alpha) { attributes.push_back(GLX_ALPHA_SIZE); attributes.push_back(_traits->alpha); }
if (_traits->stencil) { attributes.push_back(GLX_STENCIL_SIZE); attributes.push_back(_traits->stencil); }
#if defined(GLX_SAMPLE_BUFFERS) && defined (GLX_SAMPLES)
if (_traits->sampleBuffers) { attributes.push_back(GLX_SAMPLE_BUFFERS); attributes.push_back(_traits->sampleBuffers); }
if (_traits->sampleBuffers) { attributes.push_back(GLX_SAMPLES); attributes.push_back(_traits->samples); }
#endif
// TODO
// GLX_AUX_BUFFERS
// GLX_ACCUM_RED_SIZE
// GLX_ACCUM_GREEN_SIZE
// GLX_SAMPLE_BUFFERS
// GLX_SAMPLES
attributes.push_back(None);
_visualInfo = glXChooseVisual( _display, _traits->screenNum, &(attributes.front()) );
#endif
}
return _visualInfo != 0;
}
#define MWM_HINTS_FUNCTIONS (1L << 0)
#define MWM_HINTS_DECORATIONS (1L << 1)
#define MWM_HINTS_INPUT_MODE (1L << 2)
#define MWM_HINTS_STATUS (1L << 3)
#define MWM_DECOR_ALL (1L<<0)
#define MWM_DECOR_BORDER (1L<<1)
#define MWM_DECOR_RESIZEH (1L<<2)
#define MWM_DECOR_TITLE (1L<<3)
#define MWM_DECOR_MENU (1L<<4)
#define MWM_DECOR_MINIMIZE (1L<<5)
#define MWM_DECOR_MAXIMIZE (1L<<6)
#define MWM_FUNC_ALL (1L<<0)
#define MWM_FUNC_RESIZE (1L<<1)
#define MWM_FUNC_MOVE (1L<<2)
#define MWM_FUNC_MINIMIZE (1L<<3)
#define MWM_FUNC_MAXIMIZE (1L<<4)
#define MWM_FUNC_CLOSE (1L<<5)
bool GraphicsWindowX11::checkAndSendEventFullScreenIfNeeded(Display* display, int x, int y, int width, int height, bool windowDecoration)
{
osg::GraphicsContext::WindowingSystemInterface *wsi = osg::GraphicsContext::getWindowingSystemInterface();
if (wsi == NULL) {
OSG_NOTICE << "Error, no WindowSystemInterface available, cannot toggle window fullscreen." << std::endl;
return false;
}
unsigned int screenWidth;
unsigned int screenHeight;
wsi->getScreenResolution(*_traits, screenWidth, screenHeight);
bool isFullScreen = x == 0 && y == 0 && width == (int)screenWidth && height == (int)screenHeight && !windowDecoration;
Atom netWMStateAtom = XInternAtom(display, "_NET_WM_STATE", True);
Atom netWMStateFullscreenAtom = XInternAtom(display,
"_NET_WM_STATE_FULLSCREEN", True);
if (netWMStateAtom != None && netWMStateFullscreenAtom != None) {
XEvent xev;
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.window = _window;
xev.xclient.message_type = netWMStateAtom;
xev.xclient.format = 32;
xev.xclient.data.l[0] = isFullScreen ? 1 : 0;
xev.xclient.data.l[1] = netWMStateFullscreenAtom;
xev.xclient.data.l[2] = 0;
XSendEvent(display, RootWindow(display, DefaultScreen(display)),
False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
return true;
}
return false;
}
bool GraphicsWindowX11::setWindowDecorationImplementation(bool flag)
{
Display* display = getDisplayToUse();
XMapWindow(display, _window );
checkAndSendEventFullScreenIfNeeded(display, _traits->x, _traits->y, _traits->width, _traits->height, flag);
struct
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long inputMode;
unsigned long status;
} wmHints;
Atom atom;
bool result = false;
if( (atom = XInternAtom( display, "_MOTIF_WM_HINTS", 0 )) != None )
{
wmHints.flags = 0;
wmHints.functions = MWM_FUNC_ALL;
wmHints.decorations = MWM_DECOR_ALL;
wmHints.inputMode = 0;
wmHints.status = 0;
if (!flag)
{
wmHints.flags = MWM_HINTS_DECORATIONS;
wmHints.decorations = 0;
}
else
{
wmHints.flags |= MWM_HINTS_FUNCTIONS;
if (_traits.valid() && !_traits->supportsResize) wmHints.functions |= MWM_FUNC_RESIZE;
}
XChangeProperty( display, _window, atom, atom, 32, PropModeReplace, (unsigned char *)&wmHints, 5 );
result = true;
}
else
{
OSG_NOTICE<<"Error: GraphicsWindowX11::setBorder(" << flag << ") - couldn't change decorations." << std::endl;
result = false;
}
XFlush(display);
XSync(display,0);
// add usleep here to give window manager a chance to handle the request, if
// we don't add this sleep then any X11 calls right afterwards can produce
// X11 errors.
usleep(100000);
return result;
}
bool GraphicsWindowX11::setWindowRectangleImplementation(int x, int y, int width, int height)
{
if (!_initialized) return false;
Display* display = getDisplayToUse();
XMoveResizeWindow(display, _window, x, y, width, height);
XFlush(display);
XSync(display, 0);
checkAndSendEventFullScreenIfNeeded(display, x, y, width, height, _traits->windowDecoration);
// add usleep here to give window manager a chance to handle the request, if
// we don't add this sleep then any X11 calls right afterwards can produce
// X11 errors.
usleep(100000);
return true;
}
void GraphicsWindowX11::setWindowName(const std::string& name)
{
if( _window == 0) return;
// char *slist[] = { name.c_str(), 0L };
// XTextProperty xtp;
// XStringListToTextProperty( slist, 1, &xtp );
Display* display = getDisplayToUse();
if( !display ) return;
// XSetWMName( display, _window, &xtp );
XStoreName( display, _window, name.c_str() );
XSetIconName( display, _window, name.c_str() );
XFlush(display);
XSync(display,0);
_traits->windowName = name;
}
void GraphicsWindowX11::setCursor(MouseCursor mouseCursor)
{
Cursor newCursor = getOrCreateCursor(mouseCursor);
if (newCursor == _currentCursor) return;
_currentCursor = newCursor;
if (!_window) return;
Display* display = getDisplayToUse();
if (!display) return;
XDefineCursor( display, _window, _currentCursor );
XFlush(display);
XSync(display, 0);
_traits->useCursor = (_currentCursor != getOrCreateCursor(NoCursor));
}
Cursor GraphicsWindowX11::getOrCreateCursor(MouseCursor mouseCursor)
{
std::map<MouseCursor,Cursor>::iterator i = _mouseCursorMap.find(mouseCursor);
if (i != _mouseCursorMap.end()) return i->second;
Display* display = getDisplayToUse();
if (!display) return None;
switch (mouseCursor) {
case NoCursor:
{
// create an empty mouse cursor, note that it is safe to destroy the Pixmap just past cursor creation
// since the resource in the x server is reference counted.
char buff[2] = {0,0};
XColor ncol = {0,0,0,0,DoRed|DoGreen|DoBlue,0};
Pixmap pixmap = XCreateBitmapFromData( display, _parent, buff, 1, 1);
_mouseCursorMap[mouseCursor] = XCreatePixmapCursor( display, pixmap, pixmap, &ncol, &ncol, 0, 0 );
XFreePixmap(display, pixmap);
// Important to have the pixmap and the buffer still available when the request is sent to the server ...
XFlush(display);
XSync(display, 0);
break;
}
case RightArrowCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_left_ptr );
break;
case LeftArrowCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_top_left_arrow );
break;
case InfoCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_hand1 );
break;
case DestroyCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_pirate );
break;
case HelpCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_question_arrow );
break;
case CycleCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_exchange );
break;
case SprayCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_spraycan );
break;
case WaitCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_watch );
break;
case TextCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_xterm );
break;
case CrosshairCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_crosshair );
break;
case UpDownCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_sb_v_double_arrow );
break;
case LeftRightCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_sb_h_double_arrow );
break;
case TopSideCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_top_side );
break;
case BottomSideCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_bottom_side );
break;
case LeftSideCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_left_side );
break;
case RightSideCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_right_side );
break;
case TopLeftCorner:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_top_left_corner );
break;
case TopRightCorner:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_top_right_corner );
break;
case BottomRightCorner:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_bottom_right_corner );
break;
case BottomLeftCorner:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_bottom_left_corner );
break;
case HandCursor:
_mouseCursorMap[mouseCursor] = XCreateFontCursor( display, XC_hand1 );
break;
case InheritCursor:
default:
_mouseCursorMap[mouseCursor] = None;
break;
};
return _mouseCursorMap[mouseCursor];
}
void GraphicsWindowX11::init()
{
if (_initialized) return;
if (!_traits)
{
_valid = false;
return;
}
// getEventQueue()->setCurrentEventState(osgGA::GUIEventAdapter::getAccumulatedEventState().get());
WindowData* inheritedWindowData = dynamic_cast<WindowData*>(_traits->inheritedWindowData.get());
Window windowHandle = inheritedWindowData ? inheritedWindowData->_window : 0;
_ownsWindow = windowHandle == 0;
_display = XOpenDisplay(_traits->displayName().c_str());
if (!_display)
{
OSG_NOTICE<<"Error: Unable to open display \"" << XDisplayName(_traits->displayName().c_str()) << "\"."<<std::endl;
_valid = false;
return;
}
#ifdef OSG_USE_EGL
_eglDisplay = eglGetDisplay((EGLNativeDisplayType)_display);
EGLint eglMajorVersion, eglMinorVersion;
if (!eglInitialize(_eglDisplay, &eglMajorVersion, &eglMinorVersion))
{
OSG_NOTICE<<"GraphicsWindowX11::init() - eglInitialize() failed."<<std::endl;
XCloseDisplay( _display );
_display = 0;
_valid = false;
return;
}
OSG_NOTICE<<"GraphicsWindowX11::init() - eglInitialize() succeded eglMajorVersion="<<eglMajorVersion<<" iMinorVersion="<<eglMinorVersion<<std::endl;
#else
// Query for GLX extension
int errorBase, eventBase;
if( glXQueryExtension( _display, &errorBase, &eventBase) == False )
{
OSG_NOTICE<<"Error: " << XDisplayName(_traits->displayName().c_str()) <<" has no GLX extension." << std::endl;
XCloseDisplay( _display );
_display = 0;
_valid = false;
return;
}
#endif
// OSG_NOTICE<<"GLX extension, errorBase="<<errorBase<<" eventBase="<<eventBase<<std::endl;
if (!createVisualInfo())
{
_traits->red /= 2;
_traits->green /= 2;
_traits->blue /= 2;
_traits->alpha /= 2;
_traits->depth /= 2;
OSG_INFO<<"Relaxing traits"<<std::endl;
if (!createVisualInfo())
{
OSG_NOTICE<<"Error: Not able to create requested visual." << std::endl;
XCloseDisplay( _display );
_display = 0;
_valid = false;
return;
}
}
// get any shared GLX contexts
GraphicsHandleX11* graphicsHandleX11 = dynamic_cast<GraphicsHandleX11*>(_traits->sharedContext);
Context sharedContext = graphicsHandleX11 ? graphicsHandleX11->getContext() : 0;
#ifdef OSG_USE_EGL
_valid = _ownsWindow ? createWindow() : setWindow(windowHandle);
if (!_valid)
{
XCloseDisplay( _display );
_display = 0;
return;
}
OSG_NOTICE<<"GraphicsWindowX11::init() - window created ="<<_valid<<std::endl;
EGLConfig eglConfig = 0;
#if defined(OSG_GLES2_AVAILABLE)
#define OSG_EGL_OPENGL_TARGET_BIT EGL_OPENGL_ES2_BIT
#else
#define OSG_EGL_OPENGL_TARGET_BIT EGL_OPENGL_ES_BIT
#endif
EGLint configAttribs[] = {
EGL_SAMPLE_BUFFERS, 0,
EGL_SAMPLES, 0,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_DEPTH_SIZE, 1,
EGL_RENDERABLE_TYPE, OSG_EGL_OPENGL_TARGET_BIT,
EGL_NONE
};
int numConfigs;
if (!eglChooseConfig(_eglDisplay, configAttribs, &eglConfig, 1, &numConfigs) || (numConfigs != 1))
{
OSG_NOTICE<<"GraphicsWindowX11::init() - eglChooseConfig() failed."<<std::endl;
XCloseDisplay( _display );
_valid = false;
_display = 0;
return;
}
eglBindAPI(EGL_OPENGL_ES_API);
_eglSurface = eglCreateWindowSurface(_eglDisplay, eglConfig, (EGLNativeWindowType)_window, NULL);
if (_eglSurface == EGL_NO_SURFACE)
{
OSG_NOTICE<<"GraphicsWindowX11::init() - eglCreateWindowSurface(..) failed."<<std::endl;
XCloseDisplay( _display );
_valid = false;
_display = 0;
return;
}
#if defined(OSG_GLES1_AVAILABLE)
EGLint* contextAttribs = 0;
#else
EGLint contextAttribs[] = {
EGL_CONTEXT_CLIENT_VERSION,
2,
EGL_NONE
};
#endif
_context = eglCreateContext(_eglDisplay, eglConfig, sharedContext, contextAttribs);
if (_context == EGL_NO_CONTEXT)
{
OSG_NOTICE<<"GraphicsWindowX11::init() - eglCreateContext(..) failed."<<std::endl;
XCloseDisplay( _display );
_valid = false;
_display = 0;
return;
}
_initialized = true;
checkEGLError("after eglCreateContext()");
#else
_context = glXCreateContext( _display, _visualInfo, sharedContext, True );
if (!_context)
{
OSG_NOTICE<<"Error: Unable to create OpenGL graphics context."<<std::endl;
XCloseDisplay( _display );
_display = 0;
_valid = false;
return;
}
_initialized = _ownsWindow ? createWindow() : setWindow(windowHandle);
_valid = _initialized;
#endif
if (_valid == false)
{
XCloseDisplay( _display );
_display = 0;
}
}
bool GraphicsWindowX11::createWindow()
{
unsigned int screen = _traits->screenNum;
_eventDisplay = XOpenDisplay(_traits->displayName().c_str());
_parent = RootWindow( _display, screen );
XWindowAttributes watt;
XGetWindowAttributes( _display, _parent, &watt );
// unsigned int parentWindowHeight = watt.height;
XSetWindowAttributes swatt;
swatt.colormap = XCreateColormap( _display, _parent, _visualInfo->visual, AllocNone);
//swatt.colormap = DefaultColormap( _dpy, 10 );
swatt.background_pixel = 0;
swatt.border_pixel = 0;
swatt.event_mask = 0;
unsigned long mask = CWBackPixel | CWBorderPixel | CWEventMask | CWColormap;
if (_traits->overrideRedirect)
{
swatt.override_redirect = true;
mask |= CWOverrideRedirect;
OSG_INFO<<"Setting override redirect"<<std::endl;
}
_window = XCreateWindow( _display, _parent,
_traits->x,
_traits->y,
_traits->width, _traits->height, 0,
_visualInfo->depth, InputOutput,
_visualInfo->visual, mask, &swatt );
if (!_window)
{
OSG_NOTICE<<"Error: Unable to create Window."<<std::endl;
_context = 0;
return false;
}
// Give window a class so that user preferences can be saved in the resource database.
XClassHint clH;
clH.res_name = (char *)"OSG";
clH.res_class = (char *)"osgViewer";
XSetClassHint( _display, _window, &clH);
// This positions the window at _windowX, _windowY
XSizeHints sh;
sh.flags = 0;
sh.flags |= USSize;
sh.flags &= 0x7;
sh.flags |= USPosition;
sh.flags &= 0xB;
sh.x = _traits->x;
sh.y = _traits->y;
sh.width = _traits->width;
sh.height = _traits->height;
XSetStandardProperties( _display, _window, _traits->windowName.c_str(), _traits->windowName.c_str(), None, 0, 0, &sh);
setWindowDecoration(_traits->windowDecoration);
useCursor(_traits->useCursor);
_deleteWindow = XInternAtom (_display, "WM_DELETE_WINDOW", False);
XSetWMProtocols(_display, _window, &_deleteWindow, 1);
XFlush( _display );
XSync( _display, 0 );
// now update the window dimensions to account for any size changes made by the window manager,
XGetWindowAttributes( _display, _window, &watt );
if (_traits->x != watt.x || _traits->y != watt.y
||_traits->width != watt.width || _traits->height != watt.height)
{
resized( watt.x, watt.y, watt.width, watt.height );
}
//OSG_NOTICE<<"After sync apply.x = "<<watt.x<<" watt.y="<<watt.y<<" width="<<watt.width<<" height="<<watt.height<<std::endl;
XSelectInput( _eventDisplay, _window, ExposureMask | StructureNotifyMask |
KeyPressMask | KeyReleaseMask |
PointerMotionMask | ButtonPressMask | ButtonReleaseMask |
KeymapStateMask | FocusChangeMask | EnterWindowMask );
XFlush( _eventDisplay );
XSync( _eventDisplay, 0 );
rescanModifierMapping();
return true;
}
bool GraphicsWindowX11::setWindow(Window window)
{
if (_initialized)
{
OSG_NOTICE << "GraphicsWindowX11::setWindow() - Window already created; it cannot be changed";
return false;
}
if (window==0)
{
OSG_NOTICE << "GraphicsWindowX11::setWindow() - Invalid window handle passed ";
return false;
}
_window = window;
if (_window==0)
{
OSG_NOTICE << "GraphicsWindowX11::setWindow() - Unable to retrieve native window handle";
return false;
}
XWindowAttributes watt;
XGetWindowAttributes( _display, _window, &watt );
_traits->x = watt.x;
_traits->y = watt.y;
_traits->width = watt.width;
_traits->height = watt.height;
_parent = DefaultRootWindow( _display );
//_traits->supportsResize = false;
_traits->windowDecoration = false;
if (_traits->windowName.size()) setWindowName(_traits->windowName);
_eventDisplay = XOpenDisplay(_traits->displayName().c_str());
XFlush( _eventDisplay );
XSync( _eventDisplay, 0 );
return true;
}
bool GraphicsWindowX11::realizeImplementation()
{
if (_realized)
{
OSG_NOTICE<<"GraphicsWindowX11::realizeImplementation() Already realized"<<std::endl;
return true;
}
if (!_initialized) init();
if (!_initialized) return false;
XMapWindow( _display, _window );
// Window temp = _window;
// XSetWMColormapWindows( _display, _window, &temp, 1);
_realized = true;
return true;
}
bool GraphicsWindowX11::makeCurrentImplementation()
{
if (!_realized)
{
OSG_NOTICE<<"Warning: GraphicsWindow not realized, cannot do makeCurrent."<<std::endl;
return false;
}
#ifdef OSG_USE_EGL
bool result = eglMakeCurrent(_eglDisplay, _eglSurface, _eglSurface, _context)==EGL_TRUE;
checkEGLError("after eglMakeCurrent()");
return result;
#else
return glXMakeCurrent( _display, _window, _context )==True;
#endif
}
bool GraphicsWindowX11::releaseContextImplementation()
{
if (!_realized)
{
OSG_NOTICE<<"Warning: GraphicsWindow not realized, cannot do release context."<<std::endl;
return false;
}
#ifdef OSG_USE_EGL
bool result = eglMakeCurrent( _eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT )==EGL_TRUE;
checkEGLError("after eglMakeCurrent() release");
return result;
#else
return glXMakeCurrent( _display, None, NULL )==True;
#endif
}
void GraphicsWindowX11::closeImplementation()
{
// OSG_NOTICE<<"Closing GraphicsWindowX11"<<std::endl;
if (_eventDisplay)
{
XCloseDisplay( _eventDisplay );
_eventDisplay = 0;
}
if (_display)
{
if (_context)
{
#ifdef OSG_USE_EGL
eglDestroyContext( _eglDisplay, _context );
#else
glXDestroyContext( _display, _context );
#endif
}
if (_window && _ownsWindow)
{
XDestroyWindow(_display, _window);
}
XFlush( _display );
XSync( _display,0 );
}
_window = 0;
_parent = 0;
_context = 0;
if (_visualInfo)
{
#ifdef OSG_USE_EGL
delete _visualInfo;
#else
XFree(_visualInfo);
#endif
_visualInfo = 0;
}
if (_display)
{
XCloseDisplay( _display );
_display = 0;
}
_initialized = false;
_realized = false;
_valid = false;
}
void GraphicsWindowX11::swapBuffersImplementation()
{
if (!_realized) return;
// OSG_NOTICE<<"swapBuffersImplementation "<<this<<" "<<OpenThreads::Thread::CurrentThread()<<std::endl;
#ifdef OSG_USE_EGL
eglSwapBuffers( _eglDisplay, _eglSurface );
checkEGLError("after eglSwapBuffers()");
#else
#if 0
if (_traits.valid() && _traits->vsync) {
unsigned int counter;
glXGetVideoSyncSGI(&counter);
glXWaitVideoSyncSGI(1, 0, &counter);
}
#endif
glXSwapBuffers( _display, _window );
#endif
while( XPending(_display) )
{
XEvent ev;
XNextEvent( _display, &ev );
switch( ev.type )
{
case ClientMessage:
{
if (static_cast<Atom>(ev.xclient.data.l[0]) == _deleteWindow)
{
OSG_INFO<<"DeleteWindow event received"<<std::endl;
getEventQueue()->closeWindow();
}
}
}
}
}
void GraphicsWindowX11::checkEvents()
{
if (!_realized) return;
Display* display = _eventDisplay;
double baseTime = _timeOfLastCheckEvents;
double eventTime = baseTime;
double resizeTime = eventTime;
_timeOfLastCheckEvents = getEventQueue()->getTime();
// OSG_NOTICE<<"GraphicsWindowX11::checkEvents() : getEventQueue()->getCurrentEventState()->getGraphicsContext()="<<getEventQueue()->getCurrentEventState()->getGraphicsContext()<<std::endl;
int windowX = _traits->x;
int windowY = _traits->y;
int windowWidth = _traits->width;
int windowHeight = _traits->height;
bool destroyWindowRequested = false;
Time firstEventTime = 0;
// OSG_NOTICE<<"Check events"<<std::endl;
while( XPending(display) )
{
XEvent ev;
XNextEvent( display, &ev );
switch( ev.type )
{
case ClientMessage:
{
OSG_NOTICE<<"ClientMessage event received"<<std::endl;
if (static_cast<Atom>(ev.xclient.data.l[0]) == _deleteWindow)
{
OSG_NOTICE<<"DeleteWindow event received"<<std::endl;
// FIXME only do if _ownsWindow ?
destroyWindowRequested = true;
getEventQueue()->closeWindow(eventTime);
}
}
case Expose :
OSG_INFO<<"Expose x="<<ev.xexpose.x<<" y="<<ev.xexpose.y<<" width="<<ev.xexpose.width<<", height="<<ev.xexpose.height<<std::endl;
break;
case GravityNotify :
OSG_INFO<<"GravityNotify event received"<<std::endl;
break;
case ReparentNotify:
OSG_INFO<<"ReparentNotify event received"<<std::endl;
break;
case DestroyNotify :
OSG_NOTICE<<"DestroyNotify event received"<<std::endl;
_realized = false;
_valid = false;
break;
case ConfigureNotify :
{
OSG_INFO<<"ConfigureNotify x="<<ev.xconfigure.x<<" y="<<ev.xconfigure.y<<" width="<<ev.xconfigure.width<<", height="<<ev.xconfigure.height<<std::endl;
if (windowX != ev.xconfigure.x ||
windowX != ev.xconfigure.y ||
windowWidth != ev.xconfigure.width ||
windowHeight != ev.xconfigure.height)
{
resizeTime = eventTime;
windowX = ev.xconfigure.x;
windowY = ev.xconfigure.y;
windowWidth = ev.xconfigure.width;
windowHeight = ev.xconfigure.height;
}
break;
}
case MapNotify :
{
OSG_INFO<<"MapNotify"<<std::endl;
XWindowAttributes watt;
do
XGetWindowAttributes(display, _window, &watt );
while( watt.map_state != IsViewable );
OSG_INFO<<"MapNotify x="<<watt.x<<" y="<<watt.y<<" width="<<watt.width<<", height="<<watt.height<<std::endl;
if (windowWidth != watt.width || windowHeight != watt.height)
{
resizeTime = eventTime;
windowWidth = watt.width;
windowHeight = watt.height;
}
break;
}
case FocusIn :
OSG_INFO<<"FocusIn event received"<<std::endl;
flushKeyEvents();
break;
case UnmapNotify :
case FocusOut :
{
OSG_INFO<<"FocusOut/UnmapNotify event received"<<std::endl;
if (ev.type == FocusOut && ev.xfocus.mode != NotifyNormal) break;
char modMap[32];
getModifierMap(modMap);
// release normal (non-modifier) keys
for (unsigned int key = 8; key < 256; key++)
{
bool isModifier = keyMapGetKey(modMap, key);
if (!isModifier) forceKey(key, eventTime, false);
}
// release modifier keys
for (unsigned int key = 8; key < 256; key++)
{
bool isModifier = keyMapGetKey(modMap, key);
if (isModifier) forceKey(key, eventTime, false);
}
break;
}
case EnterNotify :
OSG_INFO<<"EnterNotify event received"<<std::endl;
_modifierState = ev.xcrossing.state;
syncLocks();
break;
case KeymapNotify :
{
OSG_INFO<<"KeymapNotify event received"<<std::endl;
// KeymapNotify is guaranteed to directly follow either a FocusIn or
// an EnterNotify event. We are only interested in the FocusIn case.
if (_lastEventType != FocusIn) break;
char modMap[32];
getModifierMap(modMap);
syncLocks();
char keyMap[32];
XQueryKeymap(_eventDisplay, keyMap);
// release normal (non-modifier) keys
for (unsigned int key = 8; key < 256; key++)
{
bool isModifier = keyMapGetKey(modMap, key);
if (isModifier) continue;
bool isPressed = keyMapGetKey(keyMap, key);
if (!isPressed) forceKey(key, eventTime, false);
}
// press/release modifier keys
for (unsigned int key = 8; key < 256; key++)
{
bool isModifier = keyMapGetKey(modMap, key);
if (!isModifier) continue;
bool isPressed = keyMapGetKey(keyMap, key);
forceKey(key, eventTime, isPressed);
}
// press normal keys
for (unsigned int key = 8; key < 256; key++)
{
bool isModifier = keyMapGetKey(modMap, key);
if (isModifier) continue;
bool isPressed = keyMapGetKey(keyMap, key);
if (isPressed) forceKey(key, eventTime, true);
}
break;
}
case MappingNotify :
OSG_INFO<<"MappingNotify event received"<<std::endl;
if (ev.xmapping.request == MappingModifier) rescanModifierMapping();
break;
case MotionNotify :
{
if (firstEventTime==0) firstEventTime = ev.xmotion.time;
Time relativeTime = ev.xmotion.time - firstEventTime;
eventTime = baseTime + static_cast<double>(relativeTime)*0.001;
int wx, wy;
Window win = 0L;
if( ev.xmotion.same_screen )
{
wx = ev.xmotion.x;
wy = ev.xmotion.y;
}
else
{
// the mouse in on another screen so need to compute the
// coordinates of the mouse position relative to an absolute position
// then take away the position of the original window/screen to get
// the coordinates relative to the original position.
Window root;
int rx, ry;
unsigned int buttons;
int screenOrigin_x = 0;
int screenOrigin_y = 0;
int i;
for(i= 0; i < ScreenCount(display); i++ )
{
if( XQueryPointer( display, RootWindow(display, i),
&root, &win, &rx, &ry, &wx, &wy, &buttons) )
{
break;
}
screenOrigin_x += DisplayWidth(display, i);
}
for(i= 0; i < static_cast<int>(_traits->screenNum); i++ )
{
screenOrigin_x -= DisplayWidth(display, i);
}
int dest_x_return, dest_y_return;
Window child_return;
XTranslateCoordinates(display, _window, _parent, 0, 0, &dest_x_return, &dest_y_return, &child_return);
wx += (screenOrigin_x - dest_x_return);
wy += (screenOrigin_y - dest_y_return);
}
float mx = wx;
float my = wy;
transformMouseXY(mx, my);
getEventQueue()->mouseMotion(mx, my, eventTime);
// OSG_NOTICE<<"MotionNotify wx="<<wx<<" wy="<<wy<<" mx="<<mx<<" my="<<my<<std::endl;
break;
}
case ButtonPress :
{
if (firstEventTime==0) firstEventTime = ev.xmotion.time;
Time relativeTime = ev.xmotion.time - firstEventTime;
eventTime = baseTime + static_cast<double>(relativeTime)*0.001;
if( ev.xbutton.button == Button4 )
{
getEventQueue()->mouseScroll(osgGA::GUIEventAdapter::SCROLL_UP, eventTime);
}
else if( ev.xbutton.button == Button5)
{
getEventQueue()->mouseScroll(osgGA::GUIEventAdapter::SCROLL_DOWN, eventTime);
}
else
{
float mx = ev.xbutton.x;
float my = ev.xmotion.y;
transformMouseXY(mx, my);
getEventQueue()->mouseButtonPress(mx, my, ev.xbutton.button, eventTime);
}
break;
}
case ButtonRelease :
{
if (firstEventTime==0) firstEventTime = ev.xmotion.time;
Time relativeTime = ev.xmotion.time - firstEventTime;
eventTime = baseTime + static_cast<double>(relativeTime)*0.001;
if( ev.xbutton.button == Button4 )
{
getEventQueue()->mouseScroll(osgGA::GUIEventAdapter::SCROLL_UP, eventTime);
}
else if( ev.xbutton.button == Button5)
{
getEventQueue()->mouseScroll(osgGA::GUIEventAdapter::SCROLL_DOWN, eventTime);
}
else
{
float mx = ev.xbutton.x;
float my = ev.xmotion.y;
transformMouseXY(mx, my);
getEventQueue()->mouseButtonRelease(mx, my, ev.xbutton.button, eventTime);
}
break;
}
case KeyPress:
{
if (firstEventTime==0) firstEventTime = ev.xmotion.time;
Time relativeTime = ev.xmotion.time - firstEventTime;
eventTime = baseTime + static_cast<double>(relativeTime)*0.001;
_modifierState = ev.xkey.state;
keyMapSetKey(_keyMap, ev.xkey.keycode);
int keySymbol = 0;
int unmodifiedKeySymbol = 0;
adaptKey(ev.xkey, keySymbol, unmodifiedKeySymbol);
getEventQueue()->keyPress(keySymbol, eventTime, unmodifiedKeySymbol);
break;
}
case KeyRelease:
{
if (firstEventTime==0) firstEventTime = ev.xmotion.time;
Time relativeTime = ev.xmotion.time - firstEventTime;
eventTime = baseTime + static_cast<double>(relativeTime)*0.001;
#if 1
// Check for following KeyPress events and see if
// the pair are the result of auto-repeat. If so, drop
// this one on the floor, to be consistent with
// Windows and Mac ports. The idea comes from libSDL sources.
XEvent nextev;
if (XPending(display))
{
XPeekEvent(display, &nextev);
if ((nextev.type == KeyPress)
&& (nextev.xkey.keycode == ev.xkey.keycode)
&& (nextev.xmotion.time - ev.xmotion.time < 2))
{
break;
}
}
#endif
_modifierState = ev.xkey.state;
keyMapClearKey(_keyMap, ev.xkey.keycode);
int keySymbol = 0;
int unmodifiedKeySymbol = 0;
adaptKey(ev.xkey, keySymbol, unmodifiedKeySymbol);
getEventQueue()->keyRelease(keySymbol, eventTime, unmodifiedKeySymbol);
break;
}
default:
OSG_NOTICE<<"Other event "<<ev.type<<std::endl;
break;
}
_lastEventType = ev.type;
}
if (windowX != _traits->x ||
windowY != _traits->y ||
windowWidth != _traits->width ||
windowHeight != _traits->height)
{
resized(windowX, windowY, windowWidth, windowHeight);
getEventQueue()->windowResize(windowX, windowY, windowWidth, windowHeight, resizeTime);
}
#if 0
if (destroyWindowRequested)
{
close();
}
#endif
}
void GraphicsWindowX11::grabFocus()
{
Display* display = getDisplayToUse();
XSetInputFocus( display, _window, RevertToNone, CurrentTime );
XFlush(display);
XSync(display,0);
}
void GraphicsWindowX11::grabFocusIfPointerInWindow()
{
Window win, root;
int wx, wy, rx, ry;
unsigned int buttons;
Display* display = getDisplayToUse();
if( XQueryPointer( display, _window,
&root, &win, &rx, &ry, &wx, &wy, &buttons))
{
#if 0
if (wx>=0 && wx<_traits->width &&
wy>=0 && wy<_traits->height)
{
grabFocus();
}
#else
grabFocus();
#endif
}
}
void GraphicsWindowX11::transformMouseXY(float& x, float& y)
{
if (getEventQueue()->getUseFixedMouseInputRange())
{
osgGA::GUIEventAdapter* eventState = getEventQueue()->getCurrentEventState();
x = eventState->getXmin() + (eventState->getXmax()-eventState->getXmin())*x/float(_traits->width);
y = eventState->getYmin() + (eventState->getYmax()-eventState->getYmin())*y/float(_traits->height);
}
}
void GraphicsWindowX11::adaptKey(XKeyEvent& keyevent, int& keySymbol, int& unmodifiedKeySymbol)
{
unsigned char buffer_return[32];
int bytes_buffer = 32;
KeySym keysym_return;
int numChars = XLookupString(&keyevent, reinterpret_cast<char*>(buffer_return), bytes_buffer, &keysym_return, NULL);
keySymbol = keysym_return;
if (!remapExtendedX11Key(keySymbol) && (numChars==1))
{
keySymbol = buffer_return[0];
}
unmodifiedKeySymbol = XKeycodeToKeysym(keyevent.display, keyevent.keycode, 0);
}
// Function to inject artificial key presses/releases.
void GraphicsWindowX11::forceKey(int key, double time, bool state)
{
if (!(state ^ keyMapGetKey(_keyMap, key))) return; // already pressed/released
XKeyEvent event;
event.serial = 0;
event.send_event = True;
event.display = _eventDisplay;
event.window = _window;
event.subwindow = 0;
event.time = 0;
event.x = 0;
event.y = 0;
event.x_root = 0;
event.y_root = 0;
event.state = getModifierMask() | (_modifierState & (LockMask | _numLockMask));
event.keycode = key;
event.same_screen = True;
int keySymbol = 0;
int unmodifiedKeySymbol = 0;
if (state)
{
event.type = KeyPress;
adaptKey(event, keySymbol, unmodifiedKeySymbol);
getEventQueue()->keyPress(keySymbol, time, unmodifiedKeySymbol);
keyMapSetKey(_keyMap, key);
}
else
{
event.type = KeyRelease;
adaptKey(event, keySymbol, unmodifiedKeySymbol);
getEventQueue()->keyRelease(keySymbol, time, unmodifiedKeySymbol);
keyMapClearKey(_keyMap, key);
}
}
void GraphicsWindowX11::syncLocks()
{
unsigned int mask = getEventQueue()->getCurrentEventState()->getModKeyMask();
if (_modifierState & LockMask)
mask |= osgGA::GUIEventAdapter::MODKEY_CAPS_LOCK;
else
mask &= ~osgGA::GUIEventAdapter::MODKEY_CAPS_LOCK;
if (_modifierState & _numLockMask)
mask |= osgGA::GUIEventAdapter::MODKEY_NUM_LOCK;
else
mask &= ~osgGA::GUIEventAdapter::MODKEY_NUM_LOCK;
getEventQueue()->getCurrentEventState()->setModKeyMask(mask);
}
void GraphicsWindowX11::rescanModifierMapping()
{
XModifierKeymap *mkm = XGetModifierMapping(_eventDisplay);
KeyCode *m = mkm->modifiermap;
KeyCode numlock = XKeysymToKeycode(_eventDisplay, XK_Num_Lock);
_numLockMask = 0;
for (int i = 0; i < mkm->max_keypermod * 8; i++, m++)
{
if (*m == numlock)
{
_numLockMask = 1 << (i / mkm->max_keypermod);
break;
}
}
XFree(mkm->modifiermap);
XFree(mkm);
}
void GraphicsWindowX11::flushKeyEvents()
{
XEvent e;
while (XCheckMaskEvent(_eventDisplay, KeyPressMask|KeyReleaseMask, &e))
continue;
}
// Returns char[32] keymap with bits for every modifier key set.
void GraphicsWindowX11::getModifierMap(char* keymap) const
{
memset(keymap, 0, 32);
XModifierKeymap *mkm = XGetModifierMapping(_eventDisplay);
KeyCode *m = mkm->modifiermap;
for (int i = 0; i < mkm->max_keypermod * 8; i++, m++)
{
if (*m) keyMapSetKey(keymap, *m);
}
XFree(mkm->modifiermap);
XFree(mkm);
}
int GraphicsWindowX11::getModifierMask() const
{
int mask = 0;
XModifierKeymap *mkm = XGetModifierMapping(_eventDisplay);
for (int i = 0; i < mkm->max_keypermod * 8; i++)
{
unsigned int key = mkm->modifiermap[i];
if (key && keyMapGetKey(_keyMap, key))
{
mask |= 1 << (i / mkm->max_keypermod);
}
}
XFree(mkm->modifiermap);
XFree(mkm);
return mask;
}
void GraphicsWindowX11::requestWarpPointer(float x,float y)
{
if (!_realized)
{
OSG_INFO<<"GraphicsWindowX11::requestWarpPointer() - Window not realized; cannot warp pointer, screenNum="<< _traits->screenNum<<std::endl;
return;
}
Display* display = _eventDisplay; // getDisplayToUse();
XWarpPointer( display,
None,
_window,
0, 0, 0, 0,
static_cast<int>(x), static_cast<int>(y) );
XFlush(display);
XSync(display, 0);
getEventQueue()->mouseWarped(x,y);
}
extern "C"
{
typedef int (*X11ErrorHandler)(Display*, XErrorEvent*);
int X11ErrorHandling(Display* display, XErrorEvent* event)
{
OSG_NOTICE<<"Got an X11ErrorHandling call display="<<display<<" event="<<event<<std::endl;
char buffer[256];
XGetErrorText( display, event->error_code, buffer, 256);
OSG_NOTICE << buffer << std::endl;
OSG_NOTICE << "Major opcode: " << (int)event->request_code << std::endl;
OSG_NOTICE << "Minor opcode: " << (int)event->minor_code << std::endl;
OSG_NOTICE << "Error code: " << (int)event->error_code << std::endl;
OSG_NOTICE << "Request serial: " << event->serial << std::endl;
OSG_NOTICE << "Current serial: " << NextRequest( display ) - 1 << std::endl;
switch( event->error_code )
{
case BadValue:
OSG_NOTICE << " Value: " << event->resourceid << std::endl;
break;
case BadAtom:
OSG_NOTICE << " AtomID: " << event->resourceid << std::endl;
break;
default:
OSG_NOTICE << " ResourceID: " << event->resourceid << std::endl;
break;
}
return 0;
}
}
class X11WindowingSystemInterface : public osg::GraphicsContext::WindowingSystemInterface
{
#ifdef OSGVIEWER_USE_XRANDR
// TODO: Investigate whether or not Robert thinks we should store/restore the original
// resolution in the destructor; I'm not sure the other ones do this, and it may be the
// responsibility of the user.
bool _setScreen(const osg::GraphicsContext::ScreenIdentifier& si, unsigned int width, unsigned int height, unsigned int colorDepth, double rate) {
if (colorDepth>0)
OSG_NOTICE << "X11WindowingSystemInterface::_setScreen() is not fully implemented (missing depth)."<<std::endl;
Display* display = XOpenDisplay(si.displayName().c_str());
if(display)
{
XRRScreenConfiguration* sc = XRRGetScreenInfo(display, RootWindow(display, si.screenNum));
if(!sc)
{
OSG_NOTICE << "Unable to create XRRScreenConfiguration on display \"" << XDisplayName(si.displayName().c_str()) << "\"."<<std::endl;
return false;
}
int numScreens = 0;
int numRates = 0;
Rotation currentRot = 0;
bool okay = false;
XRRConfigRotations(sc, &currentRot);
// If the width or height are zero, use our defaults.
if(!width || !height)
{
getScreenResolution(si, width, height);
}
// If this somehow fails, okay will still be false, no iteration will take place below,
// and the sc pointer will still be freed later on.
XRRScreenSize* ss = XRRConfigSizes(sc, &numScreens);
for(int i = 0; i < numScreens; i++)
{
if(ss[i].width == static_cast<int>(width) && ss[i].height == static_cast<int>(height))
{
short* rates = XRRConfigRates(sc, i, &numRates);
bool rateFound = false;
// Search for our rate in the list of acceptable rates given to us by Xrandr.
// If it's not found, rateFound will still be false and the call will never
// be made to XRRSetScreenConfigAndRate since the rate will be invalid.
for(int r = 0; r < numRates; r++)
{
if(rates[r] == static_cast<short>(rate))
{
rateFound = true;
break;
}
}
if(rate > 0.0f && !rateFound)
{
OSG_NOTICE << "Unable to find valid refresh rate " << rate << " on display \"" << XDisplayName(si.displayName().c_str()) << "\"."<<std::endl;
}
else if(XRRSetScreenConfigAndRate(display, sc, DefaultRootWindow(display), i, currentRot, static_cast<short>(rate), CurrentTime) != RRSetConfigSuccess)
{
OSG_NOTICE << "Unable to set resolution to " << width << "x" << height << " on display \"" << XDisplayName(si.displayName().c_str()) << "\"."<<std::endl;
}
else
{
okay = true;
break;
}
}
}
XRRFreeScreenConfigInfo(sc);
return okay;
}
else
{
OSG_NOTICE << "Unable to open display \"" << XDisplayName(si.displayName().c_str()) << "\"."<<std::endl;
return false;
}
}
#endif
protected:
bool _errorHandlerSet;
public:
X11WindowingSystemInterface()
{
OSG_INFO<<"X11WindowingSystemInterface()"<<std::endl;
// Install an X11 error handler, if the application has not already done so.
// Set default handler, and get pointer to current handler.
X11ErrorHandler currentHandler = XSetErrorHandler(NULL);
// Set our handler, and get pointer to default handler.
X11ErrorHandler defHandler = XSetErrorHandler(X11ErrorHandling);
if ( currentHandler == defHandler )
{
// No application error handler, use ours.
// OSG_INFO<<"Set osgViewer X11 error handler"<<std::endl;
_errorHandlerSet = 1;
}
else
{
// Application error handler exists, leave it set.
// OSG_INFO<<"Existing application X11 error handler set"<<std::endl;
_errorHandlerSet = 0;
XSetErrorHandler(currentHandler);
}
#if 0
if (XInitThreads() == 0)
{
OSG_NOTICE << "Error: XInitThreads() failed. Aborting." << std::endl;
exit(1);
}
else
{
OSG_INFO << "X11WindowingSystemInterface, xInitThreads() multi-threaded X support initialized.\n";
}
#endif
}
~X11WindowingSystemInterface()
{
if (osg::Referenced::getDeleteHandler())
{
osg::Referenced::getDeleteHandler()->setNumFramesToRetainObjects(0);
osg::Referenced::getDeleteHandler()->flushAll();
}
//OSG_NOTICE<<"~X11WindowingSystemInterface()"<<std::endl;
// Unset our X11 error handler, providing the application has not replaced it.
if ( _errorHandlerSet )
{
X11ErrorHandler currentHandler = XSetErrorHandler(NULL);
if ( currentHandler == X11ErrorHandling )
{
// OSG_INFO<<"osgViewer X11 error handler removed"<<std::endl;
}
else
{
// Not our error handler, leave it set.
// OSG_INFO<<"Application X11 error handler left"<<std::endl;
XSetErrorHandler(currentHandler);
}
}
}
virtual unsigned int getNumScreens(const osg::GraphicsContext::ScreenIdentifier& si)
{
Display* display = XOpenDisplay(si.displayName().c_str());
if(display)
{
unsigned int numScreens = ScreenCount(display);
XCloseDisplay(display);
return numScreens;
}
else
{
OSG_NOTICE << "A Unable to open display \"" << XDisplayName(si.displayName().c_str()) << "\""<<std::endl;
return 0;
}
}
bool supportsRandr(Display* display) const
{
#ifdef OSGVIEWER_USE_XRANDR
int event_basep;
int error_basep;
bool supports_randr = XRRQueryExtension( display, &event_basep, &error_basep );
if( supports_randr )
{
int major, minor;
XRRQueryVersion( display, &major, &minor );
return ( major > 1 || ( major == 1 && minor >= 2 ) );
}
#endif
return false;
}
virtual void getScreenSettings(const osg::GraphicsContext::ScreenIdentifier& si, osg::GraphicsContext::ScreenSettings & resolution )
{
Display* display = XOpenDisplay(si.displayName().c_str());
if(display)
{
resolution.width = DisplayWidth(display, si.screenNum);
resolution.height = DisplayHeight(display, si.screenNum);
resolution.colorDepth = DefaultDepth(display, si.screenNum);
resolution.refreshRate = 0; // Missing call. Need a X11 expert.
#ifdef OSGVIEWER_USE_XRANDR
if (supportsRandr(display))
{
XRRScreenConfiguration* screenConfig = XRRGetScreenInfo ( display, RootWindow(display, si.screenNum) );
resolution.refreshRate = XRRConfigCurrentRate ( screenConfig );
XRRFreeScreenConfigInfo( screenConfig );
}
#endif
XCloseDisplay(display);
}
else
{
OSG_NOTICE << "Unable to open display \"" << XDisplayName(si.displayName().c_str()) << "\"."<<std::endl;
resolution.width = 0;
resolution.height = 0;
resolution.colorDepth = 0;
resolution.refreshRate = 0;
}
}
virtual bool setScreenSettings(const osg::GraphicsContext::ScreenIdentifier& si, const osg::GraphicsContext::ScreenSettings & resolution )
{
#ifdef OSGVIEWER_USE_XRANDR
_setScreen(si, resolution.width, resolution.height, resolution.colorDepth, resolution.refreshRate);
#else
OSG_NOTICE << "You must build osgViewer with Xrandr 1.2 or higher for setScreenSettings support!" << std::endl;
#endif
return false;
}
virtual void enumerateScreenSettings(const osg::GraphicsContext::ScreenIdentifier& si, osg::GraphicsContext::ScreenSettingsList & resolutionList)
{
resolutionList.clear();
Display* display = XOpenDisplay(si.displayName().c_str());
if(display)
{
#ifdef OSGVIEWER_USE_XRANDR
int defaultDepth = DefaultDepth(display, si.screenNum);
if (supportsRandr(display))
{
int nsizes = 0;
XRRScreenSize * screenSizes = XRRSizes(display, si.screenNum, &nsizes);
if (screenSizes && nsizes>0)
{
for(int i=0; i<nsizes; ++i)
{
OSG_INFO<<"Screen size "<<screenSizes[i].width<<" "<<screenSizes[i].height<<" "<<screenSizes[i].mwidth<<" "<<screenSizes[i].mheight<<std::endl;
int nrates;
short * rates = XRRRates (display, si.screenNum, i, &nrates);
if (rates && nrates>0)
{
for(int j=0; j<nrates; ++j)
{
OSG_INFO<<" rates "<<rates[j]<<std::endl;
resolutionList.push_back(osg::GraphicsContext::ScreenSettings(
screenSizes[i].width,
screenSizes[i].height,
double(rates[j]),
defaultDepth));
}
}
else
{
resolutionList.push_back(osg::GraphicsContext::ScreenSettings(
screenSizes[i].width,
screenSizes[i].height,
0.0,
defaultDepth));
}
}
}
}
#endif
XCloseDisplay(display);
}
if (resolutionList.empty())
{
OSG_NOTICE << "X11WindowingSystemInterface::enumerateScreenSettings() not supported." << std::endl;
}
}
virtual osg::GraphicsContext* createGraphicsContext(osg::GraphicsContext::Traits* traits)
{
if (traits->pbuffer)
{
#if 1
osg::ref_ptr<osgViewer::PixelBufferX11> pbuffer = new PixelBufferX11(traits);
if (pbuffer->valid()) return pbuffer.release();
else return 0;
#else
osg::ref_ptr<osgViewer::GraphicsWindowX11> window = new GraphicsWindowX11(traits);
if (window->valid()) return window.release();
else return 0;
#endif
}
else
{
osg::ref_ptr<osgViewer::GraphicsWindowX11> window = new GraphicsWindowX11(traits);
if (window->valid()) return window.release();
else return 0;
}
}
};
struct RegisterWindowingSystemInterfaceProxy
{
RegisterWindowingSystemInterfaceProxy()
{
OSG_INFO<<"RegisterWindowingSystemInterfaceProxy()"<<std::endl;
osg::GraphicsContext::setWindowingSystemInterface(new X11WindowingSystemInterface);
}
~RegisterWindowingSystemInterfaceProxy()
{
OSG_INFO<<"~RegisterWindowingSystemInterfaceProxy()"<<std::endl;
if (osg::Referenced::getDeleteHandler())
{
osg::Referenced::getDeleteHandler()->setNumFramesToRetainObjects(0);
osg::Referenced::getDeleteHandler()->flushAll();
}
osg::GraphicsContext::setWindowingSystemInterface(0);
}
};
RegisterWindowingSystemInterfaceProxy createWindowingSystemInterfaceProxy;
// declare C entry point for static compilation.
extern "C" void graphicswindow_X11(void)
{
osg::GraphicsContext::setWindowingSystemInterface(new X11WindowingSystemInterface);
}
void GraphicsWindowX11::raiseWindow()
{
Display* display = getDisplayToUse();
XWindowAttributes winAttrib;
Window root_return, parent_return, *children;
unsigned int nchildren, i=0;
XTextProperty windowName;
bool xraise = false;
XQueryTree(display, _parent, &root_return, &parent_return, &children, &nchildren);
while (!xraise && i<nchildren)
{
XGetWMName(display,children[i++],&windowName);
if ((windowName.nitems != 0) && (strcmp(_traits->windowName.c_str(),(const char *)windowName.value) == 0)) xraise = true;
}
if (xraise) XRaiseWindow(display,_window);
else
{
XGetWindowAttributes(display, _window, &winAttrib);
XReparentWindow(display, _window, _parent, winAttrib.x, winAttrib.y);
}
XFree(children);
XFlush(display);
XSync(display,0);
}
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