1975 lines
64 KiB
C
1975 lines
64 KiB
C
//========================================================================
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// GLFW - An OpenGL framework
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// Platform: X11/GLX
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// API version: 2.7
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// WWW: http://www.glfw.org/
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#include "internal.h"
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#include <limits.h>
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#include <X11/XKBlib.h>
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/* Define GLX 1.4 FSAA tokens if not already defined */
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#ifndef GLX_VERSION_1_4
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#define GLX_SAMPLE_BUFFERS 100000
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#define GLX_SAMPLES 100001
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#endif /*GLX_VERSION_1_4*/
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// Action for EWMH client messages
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#define _NET_WM_STATE_REMOVE 0
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#define _NET_WM_STATE_ADD 1
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#define _NET_WM_STATE_TOGGLE 2
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#ifndef GLXBadProfileARB
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#define GLXBadProfileARB 13
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#endif
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//========================================================================
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// The X error code as provided to the X error handler
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//========================================================================
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static unsigned long _glfwErrorCode = Success;
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//************************************************************************
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//**** GLFW internal functions ****
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//************************************************************************
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//========================================================================
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// Error handler for BadMatch errors when requesting context with
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// unavailable OpenGL versions using the GLX_ARB_create_context extension
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//========================================================================
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static int errorHandler( Display *display, XErrorEvent *event )
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{
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_glfwErrorCode = event->error_code;
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return 0;
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}
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//========================================================================
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// Checks whether the event is a MapNotify for the specified window
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//========================================================================
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static Bool isMapNotify( Display *d, XEvent *e, char *arg )
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{
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return (e->type == MapNotify) && (e->xmap.window == (Window)arg);
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}
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//========================================================================
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// Retrieve a single window property of the specified type
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// Inspired by fghGetWindowProperty from freeglut
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//========================================================================
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static unsigned long getWindowProperty( Window window,
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Atom property,
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Atom type,
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unsigned char** value )
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{
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Atom actualType;
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int actualFormat;
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unsigned long itemCount, bytesAfter;
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XGetWindowProperty( _glfwLibrary.display,
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window,
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property,
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0,
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LONG_MAX,
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False,
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type,
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&actualType,
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&actualFormat,
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&itemCount,
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&bytesAfter,
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value );
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if( actualType != type )
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{
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return 0;
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}
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return itemCount;
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}
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//========================================================================
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// Check whether the specified atom is supported
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//========================================================================
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static Atom getSupportedAtom( Atom* supportedAtoms,
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unsigned long atomCount,
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const char* atomName )
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{
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Atom atom = XInternAtom( _glfwLibrary.display, atomName, True );
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if( atom != None )
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{
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unsigned long i;
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for( i = 0; i < atomCount; i++ )
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{
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if( supportedAtoms[i] == atom )
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{
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return atom;
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}
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}
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}
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return None;
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}
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//========================================================================
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// Check whether the running window manager is EWMH-compliant
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//========================================================================
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static GLboolean checkForEWMH( void )
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{
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Window *windowFromRoot = NULL;
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Window *windowFromChild = NULL;
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// Hey kids; let's see if the window manager supports EWMH!
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// First we need a couple of atoms, which should already be there
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Atom supportingWmCheck = XInternAtom( _glfwLibrary.display,
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"_NET_SUPPORTING_WM_CHECK",
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True );
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Atom wmSupported = XInternAtom( _glfwLibrary.display,
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"_NET_SUPPORTED",
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True );
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if( supportingWmCheck == None || wmSupported == None )
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{
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return GL_FALSE;
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}
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// Then we look for the _NET_SUPPORTING_WM_CHECK property of the root window
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if( getWindowProperty( _glfwWin.root,
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supportingWmCheck,
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XA_WINDOW,
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(unsigned char**) &windowFromRoot ) != 1 )
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{
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XFree( windowFromRoot );
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return GL_FALSE;
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}
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// It should be the ID of a child window (of the root)
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// Then we look for the same property on the child window
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if( getWindowProperty( *windowFromRoot,
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supportingWmCheck,
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XA_WINDOW,
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(unsigned char**) &windowFromChild ) != 1 )
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{
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XFree( windowFromRoot );
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XFree( windowFromChild );
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return GL_FALSE;
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}
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// It should be the ID of that same child window
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if( *windowFromRoot != *windowFromChild )
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{
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XFree( windowFromRoot );
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XFree( windowFromChild );
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return GL_FALSE;
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}
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XFree( windowFromRoot );
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XFree( windowFromChild );
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// We are now fairly sure that an EWMH-compliant window manager is running
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Atom *supportedAtoms;
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unsigned long atomCount;
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// Now we need to check the _NET_SUPPORTED property of the root window
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atomCount = getWindowProperty( _glfwWin.root,
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wmSupported,
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XA_ATOM,
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(unsigned char**) &supportedAtoms );
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// See which of the atoms we support that are supported by the WM
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_glfwWin.wmState = getSupportedAtom( supportedAtoms,
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atomCount,
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"_NET_WM_STATE" );
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_glfwWin.wmStateFullscreen = getSupportedAtom( supportedAtoms,
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atomCount,
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"_NET_WM_STATE_FULLSCREEN" );
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_glfwWin.wmPing = getSupportedAtom( supportedAtoms,
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atomCount,
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"_NET_WM_PING" );
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_glfwWin.wmActiveWindow = getSupportedAtom( supportedAtoms,
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atomCount,
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"_NET_ACTIVE_WINDOW" );
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XFree( supportedAtoms );
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return GL_TRUE;
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}
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//========================================================================
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// Translates an X Window key to internal coding
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//========================================================================
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static int translateKey( int keycode )
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{
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KeySym key, key_lc, key_uc;
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// Try secondary keysym, for numeric keypad keys
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// Note: This way we always force "NumLock = ON", which at least
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// enables GLFW users to detect numeric keypad keys
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key = XkbKeycodeToKeysym( _glfwLibrary.display, keycode, 1, 0);
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switch( key )
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{
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// Numeric keypad
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case XK_KP_0: return GLFW_KEY_KP_0;
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case XK_KP_1: return GLFW_KEY_KP_1;
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case XK_KP_2: return GLFW_KEY_KP_2;
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case XK_KP_3: return GLFW_KEY_KP_3;
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case XK_KP_4: return GLFW_KEY_KP_4;
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case XK_KP_5: return GLFW_KEY_KP_5;
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case XK_KP_6: return GLFW_KEY_KP_6;
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case XK_KP_7: return GLFW_KEY_KP_7;
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case XK_KP_8: return GLFW_KEY_KP_8;
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case XK_KP_9: return GLFW_KEY_KP_9;
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case XK_KP_Separator:
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case XK_KP_Decimal: return GLFW_KEY_KP_DECIMAL;
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case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
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case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
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default: break;
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}
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// Now try pimary keysym
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key = XkbKeycodeToKeysym( _glfwLibrary.display, keycode, 0, 0);
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switch( key )
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{
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// Special keys (non character keys)
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case XK_Escape: return GLFW_KEY_ESC;
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case XK_Tab: return GLFW_KEY_TAB;
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case XK_Shift_L: return GLFW_KEY_LSHIFT;
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case XK_Shift_R: return GLFW_KEY_RSHIFT;
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case XK_Control_L: return GLFW_KEY_LCTRL;
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case XK_Control_R: return GLFW_KEY_RCTRL;
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case XK_Meta_L:
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case XK_Alt_L: return GLFW_KEY_LALT;
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case XK_Mode_switch: // Mapped to Alt_R on many keyboards
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case XK_Meta_R:
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case XK_ISO_Level3_Shift: // AltGr on at least some machines
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case XK_Alt_R: return GLFW_KEY_RALT;
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case XK_Super_L: return GLFW_KEY_LSUPER;
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case XK_Super_R: return GLFW_KEY_RSUPER;
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case XK_Menu: return GLFW_KEY_MENU;
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case XK_Num_Lock: return GLFW_KEY_KP_NUM_LOCK;
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case XK_Caps_Lock: return GLFW_KEY_CAPS_LOCK;
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case XK_Scroll_Lock: return GLFW_KEY_SCROLL_LOCK;
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case XK_Pause: return GLFW_KEY_PAUSE;
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case XK_KP_Delete:
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case XK_Delete: return GLFW_KEY_DEL;
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case XK_BackSpace: return GLFW_KEY_BACKSPACE;
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case XK_Return: return GLFW_KEY_ENTER;
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case XK_KP_Home:
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case XK_Home: return GLFW_KEY_HOME;
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case XK_KP_End:
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case XK_End: return GLFW_KEY_END;
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case XK_KP_Page_Up:
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case XK_Page_Up: return GLFW_KEY_PAGEUP;
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case XK_KP_Page_Down:
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case XK_Page_Down: return GLFW_KEY_PAGEDOWN;
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case XK_KP_Insert:
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case XK_Insert: return GLFW_KEY_INSERT;
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case XK_KP_Left:
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case XK_Left: return GLFW_KEY_LEFT;
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case XK_KP_Right:
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case XK_Right: return GLFW_KEY_RIGHT;
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case XK_KP_Down:
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case XK_Down: return GLFW_KEY_DOWN;
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case XK_KP_Up:
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case XK_Up: return GLFW_KEY_UP;
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case XK_F1: return GLFW_KEY_F1;
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case XK_F2: return GLFW_KEY_F2;
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case XK_F3: return GLFW_KEY_F3;
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case XK_F4: return GLFW_KEY_F4;
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case XK_F5: return GLFW_KEY_F5;
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case XK_F6: return GLFW_KEY_F6;
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case XK_F7: return GLFW_KEY_F7;
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case XK_F8: return GLFW_KEY_F8;
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case XK_F9: return GLFW_KEY_F9;
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case XK_F10: return GLFW_KEY_F10;
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case XK_F11: return GLFW_KEY_F11;
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case XK_F12: return GLFW_KEY_F12;
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case XK_F13: return GLFW_KEY_F13;
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case XK_F14: return GLFW_KEY_F14;
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case XK_F15: return GLFW_KEY_F15;
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case XK_F16: return GLFW_KEY_F16;
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case XK_F17: return GLFW_KEY_F17;
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case XK_F18: return GLFW_KEY_F18;
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case XK_F19: return GLFW_KEY_F19;
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case XK_F20: return GLFW_KEY_F20;
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case XK_F21: return GLFW_KEY_F21;
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case XK_F22: return GLFW_KEY_F22;
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case XK_F23: return GLFW_KEY_F23;
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case XK_F24: return GLFW_KEY_F24;
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case XK_F25: return GLFW_KEY_F25;
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// Numeric keypad (should have been detected in secondary keysym!)
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case XK_KP_Divide: return GLFW_KEY_KP_DIVIDE;
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case XK_KP_Multiply: return GLFW_KEY_KP_MULTIPLY;
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case XK_KP_Subtract: return GLFW_KEY_KP_SUBTRACT;
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case XK_KP_Add: return GLFW_KEY_KP_ADD;
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case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;
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case XK_KP_Enter: return GLFW_KEY_KP_ENTER;
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// The rest (should be printable keys)
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default:
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// Make uppercase
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XConvertCase( key, &key_lc, &key_uc );
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key = key_uc;
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// Valid ISO 8859-1 character?
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if( (key >= 32 && key <= 126) ||
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(key >= 160 && key <= 255) )
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{
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return (int) key;
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}
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return GLFW_KEY_UNKNOWN;
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}
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}
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//========================================================================
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// Translates an X Window event to Unicode
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//========================================================================
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static int translateChar( XKeyEvent *event )
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{
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KeySym keysym;
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// Get X11 keysym
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XLookupString( event, NULL, 0, &keysym, NULL );
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// Convert to Unicode (see x11_keysym2unicode.c)
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return (int) _glfwKeySym2Unicode( keysym );
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}
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//========================================================================
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// Create a blank cursor (for locked mouse mode)
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//========================================================================
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static Cursor createNULLCursor( Display *display, Window root )
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{
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Pixmap cursormask;
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XGCValues xgc;
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GC gc;
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XColor col;
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Cursor cursor;
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cursormask = XCreatePixmap( display, root, 1, 1, 1 );
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xgc.function = GXclear;
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gc = XCreateGC( display, cursormask, GCFunction, &xgc );
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XFillRectangle( display, cursormask, gc, 0, 0, 1, 1 );
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col.pixel = 0;
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col.red = 0;
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col.flags = 4;
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cursor = XCreatePixmapCursor( display, cursormask, cursormask,
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&col,&col, 0,0 );
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XFreePixmap( display, cursormask );
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XFreeGC( display, gc );
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return cursor;
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}
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//========================================================================
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// Returns the specified attribute of the specified GLXFBConfig
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// NOTE: Do not call this unless we have found GLX 1.3+ or GLX_SGIX_fbconfig
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//========================================================================
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static int getFBConfigAttrib( GLXFBConfig fbconfig, int attrib )
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{
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int value;
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if( _glfwWin.has_GLX_SGIX_fbconfig )
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{
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_glfwWin.GetFBConfigAttribSGIX( _glfwLibrary.display, fbconfig, attrib, &value );
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}
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else
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{
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glXGetFBConfigAttrib( _glfwLibrary.display, fbconfig, attrib, &value );
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}
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return value;
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}
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//========================================================================
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// Return a list of available and usable framebuffer configs
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//========================================================================
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static _GLFWfbconfig *getFBConfigs( unsigned int *found )
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{
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GLXFBConfig *fbconfigs;
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_GLFWfbconfig *result;
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int i, count = 0;
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GLboolean trustWindowBit = GL_TRUE;
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*found = 0;
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if( _glfwLibrary.GLX.versionMajor == 1 && _glfwLibrary.GLX.versionMinor < 3 )
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{
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if( !_glfwWin.has_GLX_SGIX_fbconfig )
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{
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fprintf( stderr, "GLXFBConfigs are not supported by the X server\n" );
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return NULL;
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}
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}
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if( strcmp( glXGetClientString( _glfwLibrary.display, GLX_VENDOR ),
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"Chromium" ) == 0 )
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{
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// This is a (hopefully temporary) workaround for Chromium (VirtualBox
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// GL) not setting the window bit on any GLXFBConfigs
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trustWindowBit = GL_FALSE;
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}
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if( _glfwWin.has_GLX_SGIX_fbconfig )
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{
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fbconfigs = _glfwWin.ChooseFBConfigSGIX( _glfwLibrary.display,
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_glfwWin.screen,
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NULL,
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&count );
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if( !count )
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{
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fprintf( stderr, "No GLXFBConfigs returned\n" );
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return NULL;
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}
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}
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else
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{
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fbconfigs = glXGetFBConfigs( _glfwLibrary.display, _glfwWin.screen, &count );
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if( !count )
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{
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fprintf( stderr, "No GLXFBConfigs returned\n" );
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return NULL;
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}
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}
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result = (_GLFWfbconfig*) malloc( sizeof(_GLFWfbconfig) * count );
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if( !result )
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{
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fprintf( stderr, "Out of memory\n" );
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return NULL;
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}
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for( i = 0; i < count; i++ )
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{
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if( !getFBConfigAttrib( fbconfigs[i], GLX_DOUBLEBUFFER ) ||
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!getFBConfigAttrib( fbconfigs[i], GLX_VISUAL_ID ) )
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{
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// Only consider double-buffered GLXFBConfigs with associated visuals
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continue;
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}
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if( !( getFBConfigAttrib( fbconfigs[i], GLX_RENDER_TYPE ) & GLX_RGBA_BIT ) )
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{
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// Only consider RGBA GLXFBConfigs
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continue;
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}
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if( !( getFBConfigAttrib( fbconfigs[i], GLX_DRAWABLE_TYPE ) & GLX_WINDOW_BIT ) )
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{
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if( trustWindowBit )
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{
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// Only consider window GLXFBConfigs
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continue;
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}
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}
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result[*found].redBits = getFBConfigAttrib( fbconfigs[i], GLX_RED_SIZE );
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result[*found].greenBits = getFBConfigAttrib( fbconfigs[i], GLX_GREEN_SIZE );
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result[*found].blueBits = getFBConfigAttrib( fbconfigs[i], GLX_BLUE_SIZE );
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result[*found].alphaBits = getFBConfigAttrib( fbconfigs[i], GLX_ALPHA_SIZE );
|
|
result[*found].depthBits = getFBConfigAttrib( fbconfigs[i], GLX_DEPTH_SIZE );
|
|
result[*found].stencilBits = getFBConfigAttrib( fbconfigs[i], GLX_STENCIL_SIZE );
|
|
|
|
result[*found].accumRedBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_RED_SIZE );
|
|
result[*found].accumGreenBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_GREEN_SIZE );
|
|
result[*found].accumBlueBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_BLUE_SIZE );
|
|
result[*found].accumAlphaBits = getFBConfigAttrib( fbconfigs[i], GLX_ACCUM_ALPHA_SIZE );
|
|
|
|
result[*found].auxBuffers = getFBConfigAttrib( fbconfigs[i], GLX_AUX_BUFFERS );
|
|
result[*found].stereo = getFBConfigAttrib( fbconfigs[i], GLX_STEREO );
|
|
|
|
if( _glfwWin.has_GLX_ARB_multisample )
|
|
{
|
|
result[*found].samples = getFBConfigAttrib( fbconfigs[i], GLX_SAMPLES );
|
|
}
|
|
else
|
|
{
|
|
result[*found].samples = 0;
|
|
}
|
|
|
|
result[*found].platformID = (GLFWintptr) getFBConfigAttrib( fbconfigs[i], GLX_FBCONFIG_ID );
|
|
|
|
(*found)++;
|
|
}
|
|
|
|
XFree( fbconfigs );
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Create the OpenGL context using the legacy interface
|
|
//========================================================================
|
|
|
|
static GLXContext createLegacyContext( GLXFBConfig fbconfig )
|
|
{
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig )
|
|
{
|
|
return _glfwWin.CreateContextWithConfigSGIX( _glfwLibrary.display,
|
|
fbconfig,
|
|
GLX_RGBA_TYPE,
|
|
NULL,
|
|
True );
|
|
}
|
|
else
|
|
{
|
|
return glXCreateNewContext( _glfwLibrary.display,
|
|
fbconfig,
|
|
GLX_RGBA_TYPE,
|
|
NULL,
|
|
True );
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Create the OpenGL context
|
|
//========================================================================
|
|
|
|
#define setGLXattrib( attribs, index, attribName, attribValue ) \
|
|
attribs[index++] = attribName; \
|
|
attribs[index++] = attribValue;
|
|
|
|
static int createContext( const _GLFWwndconfig *wndconfig, GLXFBConfigID fbconfigID )
|
|
{
|
|
int attribs[40];
|
|
int flags, dummy, index;
|
|
GLXFBConfig *fbconfig;
|
|
|
|
// Retrieve the previously selected GLXFBConfig
|
|
{
|
|
index = 0;
|
|
|
|
setGLXattrib( attribs, index, GLX_FBCONFIG_ID, (int) fbconfigID );
|
|
setGLXattrib( attribs, index, None, None );
|
|
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig )
|
|
{
|
|
fbconfig = _glfwWin.ChooseFBConfigSGIX( _glfwLibrary.display,
|
|
_glfwWin.screen,
|
|
attribs,
|
|
&dummy );
|
|
}
|
|
else
|
|
{
|
|
fbconfig = glXChooseFBConfig( _glfwLibrary.display,
|
|
_glfwWin.screen,
|
|
attribs,
|
|
&dummy );
|
|
}
|
|
|
|
if( fbconfig == NULL )
|
|
{
|
|
fprintf(stderr, "Unable to retrieve the selected GLXFBConfig\n");
|
|
return GL_FALSE;
|
|
}
|
|
}
|
|
|
|
// Retrieve the corresponding visual
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig )
|
|
{
|
|
_glfwWin.visual = _glfwWin.GetVisualFromFBConfigSGIX( _glfwLibrary.display,
|
|
*fbconfig );
|
|
}
|
|
else
|
|
{
|
|
_glfwWin.visual = glXGetVisualFromFBConfig( _glfwLibrary.display, *fbconfig );
|
|
}
|
|
|
|
if( _glfwWin.visual == NULL )
|
|
{
|
|
XFree( fbconfig );
|
|
|
|
fprintf(stderr, "Unable to retrieve visual for GLXFBconfig\n");
|
|
return GL_FALSE;
|
|
}
|
|
|
|
if( _glfwWin.has_GLX_ARB_create_context )
|
|
{
|
|
index = 0;
|
|
|
|
if( wndconfig->glMajor != 1 || wndconfig->glMinor != 0 )
|
|
{
|
|
// Request an explicitly versioned context
|
|
|
|
setGLXattrib( attribs, index, GLX_CONTEXT_MAJOR_VERSION_ARB, wndconfig->glMajor );
|
|
setGLXattrib( attribs, index, GLX_CONTEXT_MINOR_VERSION_ARB, wndconfig->glMinor );
|
|
}
|
|
|
|
if( wndconfig->glForward || wndconfig->glDebug )
|
|
{
|
|
flags = 0;
|
|
|
|
if( wndconfig->glForward )
|
|
{
|
|
flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
|
|
}
|
|
|
|
if( wndconfig->glDebug )
|
|
{
|
|
flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
|
|
}
|
|
|
|
setGLXattrib( attribs, index, GLX_CONTEXT_FLAGS_ARB, flags );
|
|
}
|
|
|
|
if( wndconfig->glProfile )
|
|
{
|
|
if( !_glfwWin.has_GLX_ARB_create_context_profile )
|
|
{
|
|
fprintf( stderr, "OpenGL profile requested but GLX_ARB_create_context_profile "
|
|
"is unavailable\n" );
|
|
return GL_FALSE;
|
|
}
|
|
|
|
if( wndconfig->glProfile == GLFW_OPENGL_CORE_PROFILE )
|
|
{
|
|
flags = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
|
|
}
|
|
else
|
|
{
|
|
flags = GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
|
|
}
|
|
|
|
setGLXattrib( attribs, index, GLX_CONTEXT_PROFILE_MASK_ARB, flags );
|
|
}
|
|
|
|
setGLXattrib( attribs, index, None, None );
|
|
|
|
// This is the only place we set an Xlib error handler, and we only do
|
|
// it because glXCreateContextAttribsARB generates a BadMatch error if
|
|
// the requested OpenGL version is unavailable (instead of a civilized
|
|
// response like returning NULL)
|
|
XSetErrorHandler( errorHandler );
|
|
|
|
_glfwWin.context = _glfwWin.CreateContextAttribsARB( _glfwLibrary.display,
|
|
*fbconfig,
|
|
NULL,
|
|
True,
|
|
attribs );
|
|
|
|
// We are done, so unset the error handler again (see above)
|
|
XSetErrorHandler( NULL );
|
|
|
|
if( _glfwWin.context == NULL )
|
|
{
|
|
// HACK: This is a fallback for the broken Mesa implementation of
|
|
// GLX_ARB_create_context_profile, which fails default 1.0 context
|
|
// creation with a GLXBadProfileARB error in violation of the spec
|
|
if( (int)_glfwErrorCode == _glfwLibrary.GLX.errorBase + GLXBadProfileARB &&
|
|
wndconfig->glProfile == 0 &&
|
|
wndconfig->glForward == GL_FALSE )
|
|
{
|
|
_glfwWin.context = createLegacyContext( *fbconfig );
|
|
}
|
|
}
|
|
|
|
// Copy the debug context hint as there's no way of verifying it
|
|
// This is the only code path capable of creating a debug context,
|
|
// so leave it as false (from the earlier memset) otherwise
|
|
_glfwWin.glDebug = wndconfig->glDebug;
|
|
}
|
|
else
|
|
{
|
|
_glfwWin.context = createLegacyContext( *fbconfig );
|
|
}
|
|
|
|
XFree( fbconfig );
|
|
|
|
if( _glfwWin.context == NULL )
|
|
{
|
|
fprintf(stderr, "Unable to create OpenGL context\n");
|
|
return GL_FALSE;
|
|
}
|
|
|
|
_glfwWin.fbconfigID = fbconfigID;
|
|
|
|
return GL_TRUE;
|
|
}
|
|
|
|
#undef setGLXattrib
|
|
|
|
|
|
//========================================================================
|
|
// Initialize GLX-specific extensions
|
|
//========================================================================
|
|
|
|
static void initGLXExtensions( void )
|
|
{
|
|
// This needs to include every function pointer loaded below
|
|
_glfwWin.SwapIntervalEXT = NULL;
|
|
_glfwWin.SwapIntervalMESA = NULL;
|
|
_glfwWin.SwapIntervalSGI = NULL;
|
|
_glfwWin.GetFBConfigAttribSGIX = NULL;
|
|
_glfwWin.ChooseFBConfigSGIX = NULL;
|
|
_glfwWin.CreateContextWithConfigSGIX = NULL;
|
|
_glfwWin.GetVisualFromFBConfigSGIX = NULL;
|
|
_glfwWin.CreateContextAttribsARB = NULL;
|
|
|
|
// This needs to include every extension used below
|
|
_glfwWin.has_GLX_SGIX_fbconfig = GL_FALSE;
|
|
_glfwWin.has_GLX_EXT_swap_control = GL_FALSE;
|
|
_glfwWin.has_GLX_MESA_swap_control = GL_FALSE;
|
|
_glfwWin.has_GLX_SGI_swap_control = GL_FALSE;
|
|
_glfwWin.has_GLX_ARB_multisample = GL_FALSE;
|
|
_glfwWin.has_GLX_ARB_create_context = GL_FALSE;
|
|
_glfwWin.has_GLX_ARB_create_context_profile = GL_FALSE;
|
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_EXT_swap_control" ) )
|
|
{
|
|
_glfwWin.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
|
|
_glfwPlatformGetProcAddress( "glXSwapIntervalEXT" );
|
|
|
|
if( _glfwWin.SwapIntervalEXT )
|
|
{
|
|
_glfwWin.has_GLX_EXT_swap_control = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_MESA_swap_control" ) )
|
|
{
|
|
_glfwWin.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
|
|
_glfwPlatformGetProcAddress( "glXSwapIntervalMESA" );
|
|
|
|
if( _glfwWin.SwapIntervalMESA )
|
|
{
|
|
_glfwWin.has_GLX_MESA_swap_control = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_SGI_swap_control" ) )
|
|
{
|
|
_glfwWin.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
|
|
_glfwPlatformGetProcAddress( "glXSwapIntervalSGI" );
|
|
|
|
if( _glfwWin.SwapIntervalSGI )
|
|
{
|
|
_glfwWin.has_GLX_SGI_swap_control = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_SGIX_fbconfig" ) )
|
|
{
|
|
_glfwWin.GetFBConfigAttribSGIX = (PFNGLXGETFBCONFIGATTRIBSGIXPROC)
|
|
_glfwPlatformGetProcAddress( "glXGetFBConfigAttribSGIX" );
|
|
_glfwWin.ChooseFBConfigSGIX = (PFNGLXCHOOSEFBCONFIGSGIXPROC)
|
|
_glfwPlatformGetProcAddress( "glXChooseFBConfigSGIX" );
|
|
_glfwWin.CreateContextWithConfigSGIX = (PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC)
|
|
_glfwPlatformGetProcAddress( "glXCreateContextWithConfigSGIX" );
|
|
_glfwWin.GetVisualFromFBConfigSGIX = (PFNGLXGETVISUALFROMFBCONFIGSGIXPROC)
|
|
_glfwPlatformGetProcAddress( "glXGetVisualFromFBConfigSGIX" );
|
|
|
|
if( _glfwWin.GetFBConfigAttribSGIX &&
|
|
_glfwWin.ChooseFBConfigSGIX &&
|
|
_glfwWin.CreateContextWithConfigSGIX &&
|
|
_glfwWin.GetVisualFromFBConfigSGIX )
|
|
{
|
|
_glfwWin.has_GLX_SGIX_fbconfig = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_ARB_multisample" ) )
|
|
{
|
|
_glfwWin.has_GLX_ARB_multisample = GL_TRUE;
|
|
}
|
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_ARB_create_context" ) )
|
|
{
|
|
_glfwWin.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
|
|
_glfwPlatformGetProcAddress( "glXCreateContextAttribsARB" );
|
|
|
|
if( _glfwWin.CreateContextAttribsARB )
|
|
{
|
|
_glfwWin.has_GLX_ARB_create_context = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
if( _glfwPlatformExtensionSupported( "GLX_ARB_create_context_profile" ) )
|
|
{
|
|
_glfwWin.has_GLX_ARB_create_context_profile = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Create the X11 window (and its colormap)
|
|
//========================================================================
|
|
|
|
static GLboolean createWindow( int width, int height,
|
|
const _GLFWwndconfig *wndconfig )
|
|
{
|
|
XEvent event;
|
|
unsigned long wamask;
|
|
XSetWindowAttributes wa;
|
|
|
|
// Every window needs a colormap
|
|
// Create one based on the visual used by the current context
|
|
|
|
_glfwWin.colormap = XCreateColormap( _glfwLibrary.display,
|
|
_glfwWin.root,
|
|
_glfwWin.visual->visual,
|
|
AllocNone );
|
|
|
|
// Create the actual window
|
|
{
|
|
wamask = CWBorderPixel | CWColormap | CWEventMask;
|
|
|
|
wa.colormap = _glfwWin.colormap;
|
|
wa.border_pixel = 0;
|
|
wa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask |
|
|
PointerMotionMask | ButtonPressMask | ButtonReleaseMask |
|
|
ExposureMask | FocusChangeMask | VisibilityChangeMask;
|
|
|
|
if( wndconfig->mode == GLFW_WINDOW )
|
|
{
|
|
// The /only/ reason we are setting the background pixel here is
|
|
// that otherwise our window wont get any decorations on systems
|
|
// using Compiz on Intel hardware
|
|
wa.background_pixel = BlackPixel( _glfwLibrary.display, _glfwWin.screen );
|
|
wamask |= CWBackPixel;
|
|
}
|
|
|
|
_glfwWin.window = XCreateWindow(
|
|
_glfwLibrary.display,
|
|
_glfwWin.root,
|
|
0, 0, // Upper left corner of this window on root
|
|
_glfwWin.width, _glfwWin.height,
|
|
0, // Border width
|
|
_glfwWin.visual->depth, // Color depth
|
|
InputOutput,
|
|
_glfwWin.visual->visual,
|
|
wamask,
|
|
&wa
|
|
);
|
|
if( !_glfwWin.window )
|
|
{
|
|
_glfwPlatformCloseWindow();
|
|
return GL_FALSE;
|
|
}
|
|
}
|
|
|
|
// Check whether an EWMH-compliant window manager is running
|
|
_glfwWin.hasEWMH = checkForEWMH();
|
|
|
|
if( _glfwWin.fullscreen && !_glfwWin.hasEWMH )
|
|
{
|
|
// This is the butcher's way of removing window decorations
|
|
// Setting the override-redirect attribute on a window makes the window
|
|
// manager ignore the window completely (ICCCM, section 4)
|
|
// The good thing is that this makes undecorated fullscreen windows
|
|
// easy to do; the bad thing is that we have to do everything manually
|
|
// and some things (like iconify/restore) won't work at all, as they're
|
|
// usually performed by the window manager
|
|
|
|
XSetWindowAttributes attributes;
|
|
attributes.override_redirect = True;
|
|
XChangeWindowAttributes( _glfwLibrary.display,
|
|
_glfwWin.window,
|
|
CWOverrideRedirect,
|
|
&attributes );
|
|
|
|
_glfwWin.overrideRedirect = GL_TRUE;
|
|
}
|
|
|
|
// Find or create the protocol atom for window close notifications
|
|
_glfwWin.wmDeleteWindow = XInternAtom( _glfwLibrary.display,
|
|
"WM_DELETE_WINDOW",
|
|
False );
|
|
|
|
// Declare the WM protocols we support
|
|
{
|
|
int count = 0;
|
|
Atom protocols[2];
|
|
|
|
// The WM_DELETE_WINDOW ICCCM protocol
|
|
// Basic window close notification protocol
|
|
if( _glfwWin.wmDeleteWindow != None )
|
|
{
|
|
protocols[count++] = _glfwWin.wmDeleteWindow;
|
|
}
|
|
|
|
// The _NET_WM_PING EWMH protocol
|
|
// Tells the WM to ping our window and flag us as unresponsive if we
|
|
// don't reply within a few seconds
|
|
if( _glfwWin.wmPing != None )
|
|
{
|
|
protocols[count++] = _glfwWin.wmPing;
|
|
}
|
|
|
|
if( count > 0 )
|
|
{
|
|
XSetWMProtocols( _glfwLibrary.display, _glfwWin.window,
|
|
protocols, count );
|
|
}
|
|
}
|
|
|
|
// Set ICCCM WM_HINTS property
|
|
{
|
|
XWMHints *hints = XAllocWMHints();
|
|
if( !hints )
|
|
{
|
|
_glfwPlatformCloseWindow();
|
|
return GL_FALSE;
|
|
}
|
|
|
|
hints->flags = StateHint;
|
|
hints->initial_state = NormalState;
|
|
|
|
XSetWMHints( _glfwLibrary.display, _glfwWin.window, hints );
|
|
XFree( hints );
|
|
}
|
|
|
|
// Set ICCCM WM_NORMAL_HINTS property (even if no parts are set)
|
|
{
|
|
XSizeHints *hints = XAllocSizeHints();
|
|
if( !hints )
|
|
{
|
|
_glfwPlatformCloseWindow();
|
|
return GL_FALSE;
|
|
}
|
|
|
|
hints->flags = 0;
|
|
|
|
if( wndconfig->windowNoResize && !_glfwWin.fullscreen )
|
|
{
|
|
hints->flags |= (PMinSize | PMaxSize);
|
|
hints->min_width = hints->max_width = _glfwWin.width;
|
|
hints->min_height = hints->max_height = _glfwWin.height;
|
|
}
|
|
|
|
XSetWMNormalHints( _glfwLibrary.display, _glfwWin.window, hints );
|
|
XFree( hints );
|
|
}
|
|
|
|
_glfwPlatformSetWindowTitle( "GLFW Window" );
|
|
|
|
// Make sure the window is mapped before proceeding
|
|
XMapWindow( _glfwLibrary.display, _glfwWin.window );
|
|
XPeekIfEvent( _glfwLibrary.display, &event, isMapNotify,
|
|
(char*)_glfwWin.window );
|
|
|
|
return GL_TRUE;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Enter fullscreen mode
|
|
//========================================================================
|
|
|
|
static void enterFullscreenMode( void )
|
|
{
|
|
if( !_glfwWin.Saver.changed )
|
|
{
|
|
// Remember old screen saver settings
|
|
XGetScreenSaver( _glfwLibrary.display,
|
|
&_glfwWin.Saver.timeout, &_glfwWin.Saver.interval,
|
|
&_glfwWin.Saver.blanking, &_glfwWin.Saver.exposure );
|
|
|
|
// Disable screen saver
|
|
XSetScreenSaver( _glfwLibrary.display, 0, 0, DontPreferBlanking,
|
|
DefaultExposures );
|
|
|
|
_glfwWin.Saver.changed = GL_TRUE;
|
|
}
|
|
|
|
_glfwSetVideoMode( _glfwWin.screen,
|
|
&_glfwWin.width, &_glfwWin.height,
|
|
&_glfwWin.refreshRate );
|
|
|
|
if( _glfwWin.hasEWMH &&
|
|
_glfwWin.wmState != None &&
|
|
_glfwWin.wmStateFullscreen != None )
|
|
{
|
|
if( _glfwWin.wmActiveWindow != None )
|
|
{
|
|
// Ask the window manager to raise and focus the GLFW window
|
|
// Only focused windows with the _NET_WM_STATE_FULLSCREEN state end
|
|
// up on top of all other windows ("Stacking order" in EWMH spec)
|
|
|
|
XEvent event;
|
|
memset( &event, 0, sizeof(event) );
|
|
|
|
event.type = ClientMessage;
|
|
event.xclient.window = _glfwWin.window;
|
|
event.xclient.format = 32; // Data is 32-bit longs
|
|
event.xclient.message_type = _glfwWin.wmActiveWindow;
|
|
event.xclient.data.l[0] = 1; // Sender is a normal application
|
|
event.xclient.data.l[1] = 0; // We don't really know the timestamp
|
|
|
|
XSendEvent( _glfwLibrary.display,
|
|
_glfwWin.root,
|
|
False,
|
|
SubstructureNotifyMask | SubstructureRedirectMask,
|
|
&event );
|
|
}
|
|
|
|
// Ask the window manager to make the GLFW window a fullscreen window
|
|
// Fullscreen windows are undecorated and, when focused, are kept
|
|
// on top of all other windows
|
|
|
|
XEvent event;
|
|
memset( &event, 0, sizeof(event) );
|
|
|
|
event.type = ClientMessage;
|
|
event.xclient.window = _glfwWin.window;
|
|
event.xclient.format = 32; // Data is 32-bit longs
|
|
event.xclient.message_type = _glfwWin.wmState;
|
|
event.xclient.data.l[0] = _NET_WM_STATE_ADD;
|
|
event.xclient.data.l[1] = _glfwWin.wmStateFullscreen;
|
|
event.xclient.data.l[2] = 0; // No secondary property
|
|
event.xclient.data.l[3] = 1; // Sender is a normal application
|
|
|
|
XSendEvent( _glfwLibrary.display,
|
|
_glfwWin.root,
|
|
False,
|
|
SubstructureNotifyMask | SubstructureRedirectMask,
|
|
&event );
|
|
}
|
|
else if( _glfwWin.overrideRedirect )
|
|
{
|
|
// In override-redirect mode, we have divorced ourselves from the
|
|
// window manager, so we need to do everything manually
|
|
|
|
XRaiseWindow( _glfwLibrary.display, _glfwWin.window );
|
|
XSetInputFocus( _glfwLibrary.display, _glfwWin.window,
|
|
RevertToParent, CurrentTime );
|
|
XMoveWindow( _glfwLibrary.display, _glfwWin.window, 0, 0 );
|
|
XResizeWindow( _glfwLibrary.display, _glfwWin.window,
|
|
_glfwWin.width, _glfwWin.height );
|
|
}
|
|
|
|
if( _glfwWin.mouseLock )
|
|
{
|
|
_glfwPlatformHideMouseCursor();
|
|
}
|
|
|
|
// HACK: Try to get window inside viewport (for virtual displays) by moving
|
|
// the mouse cursor to the upper left corner (and then to the center)
|
|
// This hack should be harmless on saner systems as well
|
|
XWarpPointer( _glfwLibrary.display, None, _glfwWin.window, 0,0,0,0, 0,0 );
|
|
XWarpPointer( _glfwLibrary.display, None, _glfwWin.window, 0,0,0,0,
|
|
_glfwWin.width / 2, _glfwWin.height / 2 );
|
|
}
|
|
|
|
//========================================================================
|
|
// Leave fullscreen mode
|
|
//========================================================================
|
|
|
|
static void leaveFullscreenMode( void )
|
|
{
|
|
_glfwRestoreVideoMode();
|
|
|
|
// Did we change the screen saver setting?
|
|
if( _glfwWin.Saver.changed )
|
|
{
|
|
// Restore old screen saver settings
|
|
XSetScreenSaver( _glfwLibrary.display,
|
|
_glfwWin.Saver.timeout,
|
|
_glfwWin.Saver.interval,
|
|
_glfwWin.Saver.blanking,
|
|
_glfwWin.Saver.exposure );
|
|
|
|
_glfwWin.Saver.changed = GL_FALSE;
|
|
}
|
|
|
|
if( _glfwWin.hasEWMH &&
|
|
_glfwWin.wmState != None &&
|
|
_glfwWin.wmStateFullscreen != None )
|
|
{
|
|
// Ask the window manager to make the GLFW window a normal window
|
|
// Normal windows usually have frames and other decorations
|
|
|
|
XEvent event;
|
|
memset( &event, 0, sizeof(event) );
|
|
|
|
event.type = ClientMessage;
|
|
event.xclient.window = _glfwWin.window;
|
|
event.xclient.format = 32; // Data is 32-bit longs
|
|
event.xclient.message_type = _glfwWin.wmState;
|
|
event.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
|
|
event.xclient.data.l[1] = _glfwWin.wmStateFullscreen;
|
|
event.xclient.data.l[2] = 0; // No secondary property
|
|
event.xclient.data.l[3] = 1; // Sender is a normal application
|
|
|
|
XSendEvent( _glfwLibrary.display,
|
|
_glfwWin.root,
|
|
False,
|
|
SubstructureNotifyMask | SubstructureRedirectMask,
|
|
&event );
|
|
}
|
|
|
|
if( _glfwWin.mouseLock )
|
|
{
|
|
_glfwPlatformShowMouseCursor();
|
|
}
|
|
}
|
|
|
|
//========================================================================
|
|
// Get and process next X event (called by _glfwPlatformPollEvents)
|
|
// Returns GL_TRUE if a window close request was received
|
|
//========================================================================
|
|
|
|
static GLboolean processSingleEvent( void )
|
|
{
|
|
XEvent event;
|
|
XNextEvent( _glfwLibrary.display, &event );
|
|
|
|
switch( event.type )
|
|
{
|
|
case KeyPress:
|
|
{
|
|
// A keyboard key was pressed
|
|
|
|
// Translate and report key press
|
|
_glfwInputKey( translateKey( event.xkey.keycode ), GLFW_PRESS );
|
|
|
|
// Translate and report character input
|
|
if( _glfwWin.charCallback )
|
|
{
|
|
_glfwInputChar( translateChar( &event.xkey ), GLFW_PRESS );
|
|
}
|
|
break;
|
|
}
|
|
|
|
case KeyRelease:
|
|
{
|
|
// A keyboard key was released
|
|
|
|
// Do not report key releases for key repeats. For key repeats we
|
|
// will get KeyRelease/KeyPress pairs with similar or identical
|
|
// time stamps. User selected key repeat filtering is handled in
|
|
// _glfwInputKey()/_glfwInputChar().
|
|
if( XEventsQueued( _glfwLibrary.display, QueuedAfterReading ) )
|
|
{
|
|
XEvent nextEvent;
|
|
XPeekEvent( _glfwLibrary.display, &nextEvent );
|
|
|
|
if( nextEvent.type == KeyPress &&
|
|
nextEvent.xkey.window == event.xkey.window &&
|
|
nextEvent.xkey.keycode == event.xkey.keycode )
|
|
{
|
|
// This last check is a hack to work around key repeats
|
|
// leaking through due to some sort of time drift
|
|
// Toshiyuki Takahashi can press a button 16 times per
|
|
// second so it's fairly safe to assume that no human is
|
|
// pressing the key 50 times per second (value is ms)
|
|
if( ( nextEvent.xkey.time - event.xkey.time ) < 20 )
|
|
{
|
|
// Do not report anything for this event
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Translate and report key release
|
|
_glfwInputKey( translateKey( event.xkey.keycode ), GLFW_RELEASE );
|
|
|
|
// Translate and report character input
|
|
if( _glfwWin.charCallback )
|
|
{
|
|
_glfwInputChar( translateChar( &event.xkey ), GLFW_RELEASE );
|
|
}
|
|
break;
|
|
}
|
|
|
|
case ButtonPress:
|
|
{
|
|
// A mouse button was pressed or a scrolling event occurred
|
|
|
|
if( event.xbutton.button == Button1 )
|
|
{
|
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_LEFT, GLFW_PRESS );
|
|
}
|
|
else if( event.xbutton.button == Button2 )
|
|
{
|
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS );
|
|
}
|
|
else if( event.xbutton.button == Button3 )
|
|
{
|
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_RIGHT, GLFW_PRESS );
|
|
}
|
|
|
|
// XFree86 3.3.2 and later translates mouse wheel up/down into
|
|
// mouse button 4 & 5 presses
|
|
else if( event.xbutton.button == Button4 )
|
|
{
|
|
_glfwInput.WheelPos++; // To verify: is this up or down?
|
|
if( _glfwWin.mouseWheelCallback )
|
|
{
|
|
_glfwWin.mouseWheelCallback( _glfwInput.WheelPos );
|
|
}
|
|
}
|
|
else if( event.xbutton.button == Button5 )
|
|
{
|
|
_glfwInput.WheelPos--;
|
|
if( _glfwWin.mouseWheelCallback )
|
|
{
|
|
_glfwWin.mouseWheelCallback( _glfwInput.WheelPos );
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case ButtonRelease:
|
|
{
|
|
// A mouse button was released
|
|
|
|
if( event.xbutton.button == Button1 )
|
|
{
|
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_LEFT,
|
|
GLFW_RELEASE );
|
|
}
|
|
else if( event.xbutton.button == Button2 )
|
|
{
|
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_MIDDLE,
|
|
GLFW_RELEASE );
|
|
}
|
|
else if( event.xbutton.button == Button3 )
|
|
{
|
|
_glfwInputMouseClick( GLFW_MOUSE_BUTTON_RIGHT,
|
|
GLFW_RELEASE );
|
|
}
|
|
break;
|
|
}
|
|
|
|
case MotionNotify:
|
|
{
|
|
// The mouse cursor was moved
|
|
|
|
if( event.xmotion.x != _glfwInput.CursorPosX ||
|
|
event.xmotion.y != _glfwInput.CursorPosY )
|
|
{
|
|
// The mouse cursor was moved and we didn't do it
|
|
|
|
if( _glfwWin.mouseLock )
|
|
{
|
|
if( _glfwWin.pointerHidden )
|
|
{
|
|
_glfwInput.MousePosX += event.xmotion.x -
|
|
_glfwInput.CursorPosX;
|
|
_glfwInput.MousePosY += event.xmotion.y -
|
|
_glfwInput.CursorPosY;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
_glfwInput.MousePosX = event.xmotion.x;
|
|
_glfwInput.MousePosY = event.xmotion.y;
|
|
}
|
|
|
|
_glfwInput.CursorPosX = event.xmotion.x;
|
|
_glfwInput.CursorPosY = event.xmotion.y;
|
|
_glfwInput.MouseMoved = GL_TRUE;
|
|
|
|
if( _glfwWin.mousePosCallback )
|
|
{
|
|
_glfwWin.mousePosCallback( _glfwInput.MousePosX,
|
|
_glfwInput.MousePosY );
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case ConfigureNotify:
|
|
{
|
|
if( event.xconfigure.width != _glfwWin.width ||
|
|
event.xconfigure.height != _glfwWin.height )
|
|
{
|
|
// The window was resized
|
|
|
|
_glfwWin.width = event.xconfigure.width;
|
|
_glfwWin.height = event.xconfigure.height;
|
|
if( _glfwWin.windowSizeCallback )
|
|
{
|
|
_glfwWin.windowSizeCallback( _glfwWin.width,
|
|
_glfwWin.height );
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case ClientMessage:
|
|
{
|
|
if( (Atom) event.xclient.data.l[ 0 ] == _glfwWin.wmDeleteWindow )
|
|
{
|
|
// The window manager was asked to close the window, for example by
|
|
// the user pressing a 'close' window decoration button
|
|
|
|
return GL_TRUE;
|
|
}
|
|
else if( _glfwWin.wmPing != None &&
|
|
(Atom) event.xclient.data.l[ 0 ] == _glfwWin.wmPing )
|
|
{
|
|
// The window manager is pinging us to make sure we are still
|
|
// responding to events
|
|
|
|
event.xclient.window = _glfwWin.root;
|
|
XSendEvent( _glfwLibrary.display,
|
|
event.xclient.window,
|
|
False,
|
|
SubstructureNotifyMask | SubstructureRedirectMask,
|
|
&event );
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case MapNotify:
|
|
{
|
|
// The window was mapped
|
|
|
|
_glfwWin.iconified = GL_FALSE;
|
|
break;
|
|
}
|
|
|
|
case UnmapNotify:
|
|
{
|
|
// The window was unmapped
|
|
|
|
_glfwWin.iconified = GL_TRUE;
|
|
break;
|
|
}
|
|
|
|
case FocusIn:
|
|
{
|
|
// The window gained focus
|
|
|
|
_glfwWin.active = GL_TRUE;
|
|
|
|
if( _glfwWin.mouseLock )
|
|
{
|
|
_glfwPlatformHideMouseCursor();
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case FocusOut:
|
|
{
|
|
// The window lost focus
|
|
|
|
_glfwWin.active = GL_FALSE;
|
|
_glfwInputDeactivation();
|
|
|
|
if( _glfwWin.mouseLock )
|
|
{
|
|
_glfwPlatformShowMouseCursor();
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case Expose:
|
|
{
|
|
// The window's contents was damaged
|
|
|
|
if( _glfwWin.windowRefreshCallback )
|
|
{
|
|
_glfwWin.windowRefreshCallback();
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Was the window destroyed?
|
|
case DestroyNotify:
|
|
return GL_FALSE;
|
|
|
|
default:
|
|
{
|
|
#if defined( _GLFW_HAS_XRANDR )
|
|
switch( event.type - _glfwLibrary.XRandR.eventBase )
|
|
{
|
|
case RRScreenChangeNotify:
|
|
{
|
|
// Show XRandR that we really care
|
|
XRRUpdateConfiguration( &event );
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
|
|
// The window was not destroyed
|
|
return GL_FALSE;
|
|
}
|
|
|
|
|
|
|
|
//************************************************************************
|
|
//**** Platform implementation functions ****
|
|
//************************************************************************
|
|
|
|
//========================================================================
|
|
// Here is where the window is created, and
|
|
// the OpenGL rendering context is created
|
|
//========================================================================
|
|
|
|
int _glfwPlatformOpenWindow( int width, int height,
|
|
const _GLFWwndconfig* wndconfig,
|
|
const _GLFWfbconfig* fbconfig )
|
|
{
|
|
_GLFWfbconfig closest;
|
|
|
|
// Clear platform specific GLFW window state
|
|
_glfwWin.refreshRate = wndconfig->refreshRate;
|
|
_glfwWin.windowNoResize = wndconfig->windowNoResize;
|
|
|
|
// As the 2.x API doesn't understand multiple display devices, we hardcode
|
|
// this choice and hope for the best
|
|
_glfwWin.screen = DefaultScreen( _glfwLibrary.display );
|
|
_glfwWin.root = RootWindow( _glfwLibrary.display, _glfwWin.screen );
|
|
|
|
// Create the invisible cursor for hidden cursor mode
|
|
_glfwWin.cursor = createNULLCursor( _glfwLibrary.display, _glfwWin.root );
|
|
|
|
initGLXExtensions();
|
|
|
|
// Choose the best available fbconfig
|
|
{
|
|
unsigned int fbcount;
|
|
_GLFWfbconfig *fbconfigs;
|
|
const _GLFWfbconfig *result;
|
|
|
|
fbconfigs = getFBConfigs( &fbcount );
|
|
if( !fbconfigs )
|
|
{
|
|
return GL_FALSE;
|
|
}
|
|
|
|
result = _glfwChooseFBConfig( fbconfig, fbconfigs, fbcount );
|
|
if( !result )
|
|
{
|
|
free( fbconfigs );
|
|
return GL_FALSE;
|
|
}
|
|
|
|
closest = *result;
|
|
free( fbconfigs );
|
|
}
|
|
|
|
if( !createContext( wndconfig, (GLXFBConfigID) closest.platformID ) )
|
|
{
|
|
return GL_FALSE;
|
|
}
|
|
|
|
if( !createWindow( width, height, wndconfig ) )
|
|
{
|
|
return GL_FALSE;
|
|
}
|
|
|
|
if( wndconfig->mode == GLFW_FULLSCREEN )
|
|
{
|
|
#if defined( _GLFW_HAS_XRANDR )
|
|
// Request screen change notifications
|
|
if( _glfwLibrary.XRandR.available )
|
|
{
|
|
XRRSelectInput( _glfwLibrary.display,
|
|
_glfwWin.window,
|
|
RRScreenChangeNotifyMask );
|
|
}
|
|
#endif
|
|
enterFullscreenMode();
|
|
}
|
|
|
|
// Process the window map event and any other that may have arrived
|
|
_glfwPlatformPollEvents();
|
|
|
|
// Retrieve and set initial cursor position
|
|
{
|
|
Window window, root;
|
|
int windowX, windowY, rootX, rootY;
|
|
unsigned int mask;
|
|
|
|
XQueryPointer( _glfwLibrary.display,
|
|
_glfwWin.window,
|
|
&root,
|
|
&window,
|
|
&rootX, &rootY,
|
|
&windowX, &windowY,
|
|
&mask );
|
|
|
|
// TODO: Probably check for some corner cases here.
|
|
|
|
_glfwInput.MousePosX = windowX;
|
|
_glfwInput.MousePosY = windowY;
|
|
}
|
|
|
|
// Connect the context to the window
|
|
glXMakeCurrent( _glfwLibrary.display, _glfwWin.window, _glfwWin.context );
|
|
|
|
return GL_TRUE;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Properly kill the window/video display
|
|
//========================================================================
|
|
|
|
void _glfwPlatformCloseWindow( void )
|
|
{
|
|
if( _glfwWin.fullscreen )
|
|
{
|
|
leaveFullscreenMode();
|
|
}
|
|
|
|
if( _glfwWin.context )
|
|
{
|
|
// Release and destroy the context
|
|
glXMakeCurrent( _glfwLibrary.display, None, NULL );
|
|
glXDestroyContext( _glfwLibrary.display, _glfwWin.context );
|
|
_glfwWin.context = NULL;
|
|
}
|
|
|
|
if( _glfwWin.visual )
|
|
{
|
|
XFree( _glfwWin.visual );
|
|
_glfwWin.visual = NULL;
|
|
}
|
|
|
|
if( _glfwWin.window )
|
|
{
|
|
XUnmapWindow( _glfwLibrary.display, _glfwWin.window );
|
|
XDestroyWindow( _glfwLibrary.display, _glfwWin.window );
|
|
_glfwWin.window = (Window) 0;
|
|
}
|
|
|
|
if( _glfwWin.colormap )
|
|
{
|
|
XFreeColormap( _glfwLibrary.display, _glfwWin.colormap );
|
|
_glfwWin.colormap = (Colormap) 0;
|
|
}
|
|
|
|
if( _glfwWin.cursor )
|
|
{
|
|
XFreeCursor( _glfwLibrary.display, _glfwWin.cursor );
|
|
_glfwWin.cursor = (Cursor) 0;
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window title
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetWindowTitle( const char *title )
|
|
{
|
|
// Set window & icon title
|
|
XStoreName( _glfwLibrary.display, _glfwWin.window, title );
|
|
XSetIconName( _glfwLibrary.display, _glfwWin.window, title );
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window size
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetWindowSize( int width, int height )
|
|
{
|
|
int mode = 0, rate, sizeChanged = GL_FALSE;
|
|
|
|
rate = _glfwWin.refreshRate;
|
|
|
|
if( _glfwWin.fullscreen )
|
|
{
|
|
// Get the closest matching video mode for the specified window size
|
|
mode = _glfwGetClosestVideoMode( _glfwWin.screen, &width, &height, &rate );
|
|
}
|
|
|
|
if( _glfwWin.windowNoResize )
|
|
{
|
|
// Update window size restrictions to match new window size
|
|
|
|
XSizeHints *hints = XAllocSizeHints();
|
|
|
|
hints->flags |= (PMinSize | PMaxSize);
|
|
hints->min_width = hints->max_width = width;
|
|
hints->min_height = hints->max_height = height;
|
|
|
|
XSetWMNormalHints( _glfwLibrary.display, _glfwWin.window, hints );
|
|
XFree( hints );
|
|
}
|
|
|
|
// Change window size before changing fullscreen mode?
|
|
if( _glfwWin.fullscreen && (width > _glfwWin.width) )
|
|
{
|
|
XResizeWindow( _glfwLibrary.display, _glfwWin.window, width, height );
|
|
sizeChanged = GL_TRUE;
|
|
}
|
|
|
|
if( _glfwWin.fullscreen )
|
|
{
|
|
// Change video mode, keeping current refresh rate
|
|
_glfwSetVideoModeMODE( _glfwWin.screen, mode, _glfwWin.refreshRate );
|
|
}
|
|
|
|
// Set window size (if not already changed)
|
|
if( !sizeChanged )
|
|
{
|
|
XResizeWindow( _glfwLibrary.display, _glfwWin.window, width, height );
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window position.
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetWindowPos( int x, int y )
|
|
{
|
|
XMoveWindow( _glfwLibrary.display, _glfwWin.window, x, y );
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Window iconification
|
|
//========================================================================
|
|
|
|
void _glfwPlatformIconifyWindow( void )
|
|
{
|
|
if( _glfwWin.overrideRedirect )
|
|
{
|
|
// We can't iconify/restore override-redirect windows, as that's
|
|
// performed by the window manager
|
|
return;
|
|
}
|
|
|
|
XIconifyWindow( _glfwLibrary.display, _glfwWin.window, _glfwWin.screen );
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Window un-iconification
|
|
//========================================================================
|
|
|
|
void _glfwPlatformRestoreWindow( void )
|
|
{
|
|
if( _glfwWin.overrideRedirect )
|
|
{
|
|
// We can't iconify/restore override-redirect windows, as that's
|
|
// performed by the window manager
|
|
return;
|
|
}
|
|
|
|
XMapWindow( _glfwLibrary.display, _glfwWin.window );
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Swap OpenGL buffers and poll any new events
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSwapBuffers( void )
|
|
{
|
|
// Update display-buffer
|
|
glXSwapBuffers( _glfwLibrary.display, _glfwWin.window );
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set double buffering swap interval
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSwapInterval( int interval )
|
|
{
|
|
if( _glfwWin.has_GLX_EXT_swap_control )
|
|
{
|
|
_glfwWin.SwapIntervalEXT( _glfwLibrary.display,
|
|
_glfwWin.window,
|
|
interval );
|
|
}
|
|
else if( _glfwWin.has_GLX_MESA_swap_control )
|
|
{
|
|
_glfwWin.SwapIntervalMESA( interval );
|
|
}
|
|
else if( _glfwWin.has_GLX_SGI_swap_control )
|
|
{
|
|
if( interval > 0 )
|
|
{
|
|
_glfwWin.SwapIntervalSGI( interval );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Read back framebuffer parameters from the context
|
|
//========================================================================
|
|
|
|
void _glfwPlatformRefreshWindowParams( void )
|
|
{
|
|
int dummy;
|
|
GLXFBConfig *fbconfig;
|
|
#if defined( _GLFW_HAS_XRANDR )
|
|
XRRScreenConfiguration *sc;
|
|
#elif defined( _GLFW_HAS_XF86VIDMODE )
|
|
XF86VidModeModeLine modeline;
|
|
int dotclock;
|
|
float pixels_per_second, pixels_per_frame;
|
|
#endif
|
|
int attribs[] = { GLX_FBCONFIG_ID, _glfwWin.fbconfigID, None };
|
|
|
|
if( _glfwWin.has_GLX_SGIX_fbconfig )
|
|
{
|
|
fbconfig = _glfwWin.ChooseFBConfigSGIX( _glfwLibrary.display,
|
|
_glfwWin.screen,
|
|
attribs,
|
|
&dummy );
|
|
}
|
|
else
|
|
{
|
|
fbconfig = glXChooseFBConfig( _glfwLibrary.display,
|
|
_glfwWin.screen,
|
|
attribs,
|
|
&dummy );
|
|
}
|
|
|
|
if( fbconfig == NULL )
|
|
{
|
|
// This should never ever happen
|
|
// TODO: Figure out what to do when this happens
|
|
fprintf( stderr, "Cannot find known GLXFBConfig by ID. "
|
|
"This cannot happen. Have a nice day.\n");
|
|
abort();
|
|
}
|
|
|
|
// There is no clear definition of an "accelerated" context on X11/GLX, and
|
|
// true sounds better than false, so we hardcode true here
|
|
_glfwWin.accelerated = GL_TRUE;
|
|
|
|
_glfwWin.redBits = getFBConfigAttrib( *fbconfig, GLX_RED_SIZE );
|
|
_glfwWin.greenBits = getFBConfigAttrib( *fbconfig, GLX_GREEN_SIZE );
|
|
_glfwWin.blueBits = getFBConfigAttrib( *fbconfig, GLX_BLUE_SIZE );
|
|
|
|
_glfwWin.alphaBits = getFBConfigAttrib( *fbconfig, GLX_ALPHA_SIZE );
|
|
_glfwWin.depthBits = getFBConfigAttrib( *fbconfig, GLX_DEPTH_SIZE );
|
|
_glfwWin.stencilBits = getFBConfigAttrib( *fbconfig, GLX_STENCIL_SIZE );
|
|
|
|
_glfwWin.accumRedBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_RED_SIZE );
|
|
_glfwWin.accumGreenBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_GREEN_SIZE );
|
|
_glfwWin.accumBlueBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_BLUE_SIZE );
|
|
_glfwWin.accumAlphaBits = getFBConfigAttrib( *fbconfig, GLX_ACCUM_ALPHA_SIZE );
|
|
|
|
_glfwWin.auxBuffers = getFBConfigAttrib( *fbconfig, GLX_AUX_BUFFERS );
|
|
_glfwWin.stereo = getFBConfigAttrib( *fbconfig, GLX_STEREO ) ? 1 : 0;
|
|
|
|
// Get FSAA buffer sample count
|
|
if( _glfwWin.has_GLX_ARB_multisample )
|
|
{
|
|
_glfwWin.samples = getFBConfigAttrib( *fbconfig, GLX_SAMPLES );
|
|
}
|
|
else
|
|
{
|
|
_glfwWin.samples = 0;
|
|
}
|
|
|
|
// Default to refresh rate unknown (=0 according to GLFW spec)
|
|
_glfwWin.refreshRate = 0;
|
|
|
|
// Retrieve refresh rate if possible
|
|
#if defined( _GLFW_HAS_XRANDR )
|
|
if( _glfwLibrary.XRandR.available )
|
|
{
|
|
sc = XRRGetScreenInfo( _glfwLibrary.display, _glfwWin.root );
|
|
_glfwWin.refreshRate = XRRConfigCurrentRate( sc );
|
|
XRRFreeScreenConfigInfo( sc );
|
|
}
|
|
#elif defined( _GLFW_HAS_XF86VIDMODE )
|
|
if( _glfwLibrary.XF86VidMode.available )
|
|
{
|
|
// Use the XF86VidMode extension to get current video mode
|
|
XF86VidModeGetModeLine( _glfwLibrary.display, _glfwWin.screen,
|
|
&dotclock, &modeline );
|
|
pixels_per_second = 1000.0f * (float) dotclock;
|
|
pixels_per_frame = (float) modeline.htotal * modeline.vtotal;
|
|
_glfwWin.refreshRate = (int)(pixels_per_second/pixels_per_frame+0.5);
|
|
}
|
|
#endif
|
|
|
|
XFree( fbconfig );
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Poll for new window and input events
|
|
//========================================================================
|
|
|
|
void _glfwPlatformPollEvents( void )
|
|
{
|
|
GLboolean closeRequested = GL_FALSE;
|
|
|
|
// Flag that the cursor has not moved
|
|
_glfwInput.MouseMoved = GL_FALSE;
|
|
|
|
// Process all pending events
|
|
while( XPending( _glfwLibrary.display ) )
|
|
{
|
|
if( processSingleEvent() )
|
|
{
|
|
closeRequested = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
// Did we get mouse movement in fully enabled hidden cursor mode?
|
|
if( _glfwInput.MouseMoved && _glfwWin.pointerHidden )
|
|
{
|
|
_glfwPlatformSetMouseCursorPos( _glfwWin.width/2,
|
|
_glfwWin.height/2 );
|
|
|
|
// NOTE: This is a temporary fix. It works as long as you use offsets
|
|
// accumulated over the course of a frame, instead of performing
|
|
// the necessary actions per callback call.
|
|
XFlush( _glfwLibrary.display );
|
|
}
|
|
|
|
if( closeRequested && _glfwWin.windowCloseCallback )
|
|
{
|
|
closeRequested = _glfwWin.windowCloseCallback();
|
|
}
|
|
if( closeRequested )
|
|
{
|
|
glfwCloseWindow();
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Wait for new window and input events
|
|
//========================================================================
|
|
|
|
void _glfwPlatformWaitEvents( void )
|
|
{
|
|
XEvent event;
|
|
|
|
// Block waiting for an event to arrive
|
|
XNextEvent( _glfwLibrary.display, &event );
|
|
XPutBackEvent( _glfwLibrary.display, &event );
|
|
|
|
_glfwPlatformPollEvents();
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Hide mouse cursor (lock it)
|
|
//========================================================================
|
|
|
|
void _glfwPlatformHideMouseCursor( void )
|
|
{
|
|
// Hide cursor
|
|
if( !_glfwWin.pointerHidden )
|
|
{
|
|
XDefineCursor( _glfwLibrary.display, _glfwWin.window, _glfwWin.cursor );
|
|
_glfwWin.pointerHidden = GL_TRUE;
|
|
}
|
|
|
|
// Grab cursor to user window
|
|
if( !_glfwWin.pointerGrabbed )
|
|
{
|
|
if( XGrabPointer( _glfwLibrary.display, _glfwWin.window, True,
|
|
ButtonPressMask | ButtonReleaseMask |
|
|
PointerMotionMask, GrabModeAsync, GrabModeAsync,
|
|
_glfwWin.window, None, CurrentTime ) ==
|
|
GrabSuccess )
|
|
{
|
|
_glfwWin.pointerGrabbed = GL_TRUE;
|
|
}
|
|
}
|
|
|
|
// Move cursor to the middle of the window
|
|
_glfwPlatformSetMouseCursorPos( _glfwWin.width / 2, _glfwWin.height / 2 );
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Show mouse cursor (unlock it)
|
|
//========================================================================
|
|
|
|
void _glfwPlatformShowMouseCursor( void )
|
|
{
|
|
// Un-grab cursor (only in windowed mode: in fullscreen mode we still
|
|
// want the mouse grabbed in order to confine the cursor to the window
|
|
// area)
|
|
if( _glfwWin.pointerGrabbed )
|
|
{
|
|
XUngrabPointer( _glfwLibrary.display, CurrentTime );
|
|
_glfwWin.pointerGrabbed = GL_FALSE;
|
|
}
|
|
|
|
// Show cursor
|
|
if( _glfwWin.pointerHidden )
|
|
{
|
|
XUndefineCursor( _glfwLibrary.display, _glfwWin.window );
|
|
_glfwWin.pointerHidden = GL_FALSE;
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set physical mouse cursor position
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetMouseCursorPos( int x, int y )
|
|
{
|
|
// Store the new position so we can recognise it later
|
|
_glfwInput.CursorPosX = x;
|
|
_glfwInput.CursorPosY = y;
|
|
|
|
XWarpPointer( _glfwLibrary.display, None, _glfwWin.window, 0,0,0,0, x, y );
|
|
}
|
|
|