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1808 lines
60 KiB
1808 lines
60 KiB
//======================================================================== |
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// GLFW - An OpenGL framework |
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// Platform: X11/GLX |
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// API version: 3.0 |
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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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|
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#include "internal.h" |
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|
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#include <limits.h> |
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|
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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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|
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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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|
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|
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//************************************************************************ |
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//**** GLFW internal functions **** |
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//************************************************************************ |
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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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|
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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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|
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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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|
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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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|
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if (actualType != type) |
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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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|
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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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return atom; |
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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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|
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// Hey kids; let's see if the window manager supports EWMH! |
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|
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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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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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|
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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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|
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// We are now fairly sure that an EWMH-compliant window manager is running |
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|
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Atom *supportedAtoms; |
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unsigned long atomCount; |
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|
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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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|
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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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|
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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 = XKeycodeToKeysym(_glfwLibrary.display, keycode, 1); |
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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 = XKeycodeToKeysym(_glfwLibrary.display, keycode, 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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|
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// Valid ISO 8859-1 character? |
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if ((key >= 32 && key <= 126) || (key >= 160 && key <= 255)) |
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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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|
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//======================================================================== |
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// Translates an X Window event to Unicode |
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//======================================================================== |
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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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|
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// Get X11 keysym |
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XLookupString(event, NULL, 0, &keysym, NULL); |
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|
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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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|
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//======================================================================== |
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// Create a blank cursor (for locked mouse mode) |
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//======================================================================== |
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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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|
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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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|
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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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|
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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, |
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fbconfig, attrib, &value); |
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} |
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else |
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glXGetFBConfigAttrib(_glfwLibrary.display, fbconfig, attrib, &value); |
|
|
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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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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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|
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*found = 0; |
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|
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if (_glfwLibrary.glxMajor == 1 && _glfwLibrary.glxMinor < 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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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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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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result = (_GLFWfbconfig*) malloc(sizeof(_GLFWfbconfig) * count); |
|
if (!result) |
|
{ |
|
fprintf(stderr, "Out of memory\n"); |
|
return NULL; |
|
} |
|
|
|
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 |
|
continue; |
|
} |
|
|
|
if (!(getFBConfigAttrib(fbconfigs[i], GLX_RENDER_TYPE) & GLX_RGBA_BIT)) |
|
{ |
|
// Only consider RGBA GLXFBConfigs |
|
continue; |
|
} |
|
|
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if (!(getFBConfigAttrib(fbconfigs[i], GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT)) |
|
{ |
|
// Only consider window GLXFBConfigs |
|
continue; |
|
} |
|
|
|
result[*found].redBits = getFBConfigAttrib(fbconfigs[i], GLX_RED_SIZE); |
|
result[*found].greenBits = getFBConfigAttrib(fbconfigs[i], GLX_GREEN_SIZE); |
|
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); |
|
|
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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 |
|
//======================================================================== |
|
|
|
#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); |
|
|
|
_glfwWin.context = _glfwWin.CreateContextAttribsARB(_glfwLibrary.display, |
|
*fbconfig, |
|
NULL, |
|
True, |
|
attribs); |
|
} |
|
else |
|
{ |
|
if (_glfwWin.has_GLX_SGIX_fbconfig) |
|
{ |
|
_glfwWin.context = _glfwWin.CreateContextWithConfigSGIX(_glfwLibrary.display, |
|
*fbconfig, |
|
GLX_RGBA_TYPE, |
|
NULL, |
|
True); |
|
} |
|
else |
|
{ |
|
_glfwWin.context = glXCreateNewContext(_glfwLibrary.display, |
|
*fbconfig, |
|
GLX_RGBA_TYPE, |
|
NULL, |
|
True); |
|
} |
|
} |
|
|
|
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.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_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_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) |
|
{ |
|
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.visual = (XVisualInfo*)NULL; |
|
_glfwWin.colormap = (Colormap)0; |
|
_glfwWin.context = (GLXContext)NULL; |
|
_glfwWin.window = (Window)0; |
|
_glfwWin.pointerGrabbed = GL_FALSE; |
|
_glfwWin.pointerHidden = GL_FALSE; |
|
_glfwWin.keyboardGrabbed = GL_FALSE; |
|
_glfwWin.overrideRedirect = GL_FALSE; |
|
_glfwWin.FS.modeChanged = GL_FALSE; |
|
_glfwWin.Saver.changed = GL_FALSE; |
|
_glfwWin.refreshRate = wndconfig->refreshRate; |
|
_glfwWin.windowNoResize = wndconfig->windowNoResize; |
|
|
|
_glfwWin.wmDeleteWindow = None; |
|
_glfwWin.wmPing = None; |
|
_glfwWin.wmState = None; |
|
_glfwWin.wmStateFullscreen = None; |
|
_glfwWin.wmActiveWindow = None; |
|
|
|
// 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) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
result = _glfwChooseFBConfig(fbconfig, fbconfigs, fbcount); |
|
if (!result) |
|
{ |
|
free(fbconfigs); |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
closest = *result; |
|
free(fbconfigs); |
|
} |
|
|
|
if (!createContext(wndconfig, (GLXFBConfigID) closest.platformID)) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
return GL_FALSE; |
|
} |
|
|
|
if (!createWindow(width, height, wndconfig)) |
|
{ |
|
_glfwPlatformCloseWindow(); |
|
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; |
|
XSizeHints *sizehints; |
|
|
|
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 |
|
|
|
sizehints = XAllocSizeHints(); |
|
sizehints->flags = 0; |
|
|
|
sizehints->min_width = sizehints->max_width = width; |
|
sizehints->min_height = sizehints->max_height = height; |
|
|
|
XSetWMNormalHints(_glfwLibrary.display, _glfwWin.window, sizehints); |
|
XFree(sizehints); |
|
} |
|
|
|
// 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_SGI_swap_control) |
|
_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); |
|
} |
|
|
|
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; |
|
} |
|
} |
|
} |
|
|
|
|
|
//======================================================================== |
|
// 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); |
|
} |
|
|
|
|