1264 lines
41 KiB
C
1264 lines
41 KiB
C
//========================================================================
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// GLFW - An OpenGL library
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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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#include "internal.h"
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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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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// Additional mouse button names for XButtonEvent
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#define Button6 6
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#define Button7 7
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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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// 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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// Use the pre-filled LUT (see updateKeyCodeLUT() ).
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if ((keycode >= 0) && (keycode < 256))
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{
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return _glfwLibrary.X11.keyCodeLUT[keycode];
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}
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else
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{
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return -1;
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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 the X11 window (and its colormap)
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//========================================================================
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static GLboolean createWindow(_GLFWwindow* window,
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const _GLFWwndconfig* wndconfig)
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{
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XEvent event;
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unsigned long wamask;
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XSetWindowAttributes wa;
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XVisualInfo* visual = _glfwGetContextVisual(window);
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// Every window needs a colormap
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// Create one based on the visual used by the current context
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window->X11.colormap = XCreateColormap(_glfwLibrary.X11.display,
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_glfwLibrary.X11.root,
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visual->visual,
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AllocNone);
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// Create the actual window
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{
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wamask = CWBorderPixel | CWColormap | CWEventMask;
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wa.colormap = window->X11.colormap;
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wa.border_pixel = 0;
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wa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask |
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PointerMotionMask | ButtonPressMask | ButtonReleaseMask |
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ExposureMask | FocusChangeMask | VisibilityChangeMask |
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EnterWindowMask | LeaveWindowMask;
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if (wndconfig->mode == GLFW_WINDOWED)
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{
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// The /only/ reason we are setting the background pixel here is
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// that otherwise our window wont get any decorations on systems
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// using Compiz on Intel hardware
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wa.background_pixel = BlackPixel(_glfwLibrary.X11.display,
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_glfwLibrary.X11.screen);
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wamask |= CWBackPixel;
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}
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window->X11.handle = XCreateWindow(
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_glfwLibrary.X11.display,
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_glfwLibrary.X11.root,
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0, 0, // Upper left corner of this window on root
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window->width, window->height,
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0, // Border width
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visual->depth, // Color depth
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InputOutput,
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visual->visual,
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wamask,
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&wa
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);
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if (!window->X11.handle)
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{
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// TODO: Handle all the various error codes here
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_glfwSetError(GLFW_PLATFORM_ERROR,
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"X11/GLX: Failed to create window");
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return GL_FALSE;
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}
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}
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if (window->mode == GLFW_FULLSCREEN && !_glfwLibrary.X11.hasEWMH)
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{
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// This is the butcher's way of removing window decorations
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// Setting the override-redirect attribute on a window makes the window
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// manager ignore the window completely (ICCCM, section 4)
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// The good thing is that this makes undecorated fullscreen windows
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// easy to do; the bad thing is that we have to do everything manually
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// and some things (like iconify/restore) won't work at all, as they're
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// usually performed by the window manager
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XSetWindowAttributes attributes;
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attributes.override_redirect = True;
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XChangeWindowAttributes(_glfwLibrary.X11.display,
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window->X11.handle,
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CWOverrideRedirect,
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&attributes);
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window->X11.overrideRedirect = GL_TRUE;
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}
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// Find or create the protocol atom for window close notifications
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_glfwLibrary.X11.wmDeleteWindow = XInternAtom(_glfwLibrary.X11.display,
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"WM_DELETE_WINDOW",
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False);
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// Declare the WM protocols we support
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{
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int count = 0;
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Atom protocols[2];
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// The WM_DELETE_WINDOW ICCCM protocol
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// Basic window close notification protocol
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if (_glfwLibrary.X11.wmDeleteWindow != None)
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protocols[count++] = _glfwLibrary.X11.wmDeleteWindow;
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// The _NET_WM_PING EWMH protocol
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// Tells the WM to ping our window and flag us as unresponsive if we
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// don't reply within a few seconds
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if (_glfwLibrary.X11.wmPing != None)
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protocols[count++] = _glfwLibrary.X11.wmPing;
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if (count > 0)
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{
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XSetWMProtocols(_glfwLibrary.X11.display, window->X11.handle,
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protocols, count);
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}
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}
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// Set ICCCM WM_HINTS property
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{
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XWMHints* hints = XAllocWMHints();
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if (!hints)
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{
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_glfwSetError(GLFW_OUT_OF_MEMORY,
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"X11/GLX: Failed to allocate WM hints");
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return GL_FALSE;
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}
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hints->flags = StateHint;
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hints->initial_state = NormalState;
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XSetWMHints(_glfwLibrary.X11.display, window->X11.handle, hints);
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XFree(hints);
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}
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// Set ICCCM WM_NORMAL_HINTS property (even if no parts are set)
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{
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XSizeHints* hints = XAllocSizeHints();
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if (!hints)
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{
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_glfwSetError(GLFW_OUT_OF_MEMORY,
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"X11/GLX: Failed to allocate size hints");
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return GL_FALSE;
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}
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hints->flags = 0;
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if (!wndconfig->resizable)
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{
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hints->flags |= (PMinSize | PMaxSize);
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hints->min_width = hints->max_width = window->width;
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hints->min_height = hints->max_height = window->height;
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}
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XSetWMNormalHints(_glfwLibrary.X11.display, window->X11.handle, hints);
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XFree(hints);
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}
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_glfwPlatformSetWindowTitle(window, wndconfig->title);
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// Make sure the window is mapped before proceeding
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XMapWindow(_glfwLibrary.X11.display, window->X11.handle);
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XPeekIfEvent(_glfwLibrary.X11.display, &event, isMapNotify,
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(char*) window->X11.handle);
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return GL_TRUE;
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}
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//========================================================================
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// Hide cursor
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//========================================================================
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static void hideCursor(_GLFWwindow* window)
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{
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if (!window->X11.cursorHidden)
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{
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XDefineCursor(_glfwLibrary.X11.display,
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window->X11.handle,
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_glfwLibrary.X11.cursor);
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window->X11.cursorHidden = GL_TRUE;
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}
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}
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//========================================================================
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// Capture cursor
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//========================================================================
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static void captureCursor(_GLFWwindow* window)
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{
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hideCursor(window);
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if (!window->X11.cursorGrabbed)
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{
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if (XGrabPointer(_glfwLibrary.X11.display, window->X11.handle, True,
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ButtonPressMask | ButtonReleaseMask |
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PointerMotionMask, GrabModeAsync, GrabModeAsync,
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window->X11.handle, None, CurrentTime) ==
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GrabSuccess)
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{
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window->X11.cursorGrabbed = GL_TRUE;
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window->X11.cursorCentered = GL_FALSE;
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}
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}
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}
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//========================================================================
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// Show cursor
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//========================================================================
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static void showCursor(_GLFWwindow* window)
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{
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// Un-grab cursor (only in windowed mode: in fullscreen mode we still
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// want the cursor grabbed in order to confine the cursor to the window
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// area)
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if (window->X11.cursorGrabbed)
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{
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XUngrabPointer(_glfwLibrary.X11.display, CurrentTime);
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window->X11.cursorGrabbed = GL_FALSE;
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}
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// Show cursor
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if (window->X11.cursorHidden)
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{
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XUndefineCursor(_glfwLibrary.X11.display, window->X11.handle);
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window->X11.cursorHidden = GL_FALSE;
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}
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}
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//========================================================================
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// Enter fullscreen mode
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//========================================================================
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static void enterFullscreenMode(_GLFWwindow* window)
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{
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if (!_glfwLibrary.X11.saver.changed)
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{
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// Remember old screen saver settings
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XGetScreenSaver(_glfwLibrary.X11.display,
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&_glfwLibrary.X11.saver.timeout,
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&_glfwLibrary.X11.saver.interval,
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&_glfwLibrary.X11.saver.blanking,
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&_glfwLibrary.X11.saver.exposure);
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// Disable screen saver
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XSetScreenSaver(_glfwLibrary.X11.display, 0, 0, DontPreferBlanking,
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DefaultExposures);
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_glfwLibrary.X11.saver.changed = GL_TRUE;
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}
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_glfwSetVideoMode(&window->width, &window->height,
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&window->refreshRate);
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if (_glfwLibrary.X11.hasEWMH &&
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_glfwLibrary.X11.wmState != None &&
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_glfwLibrary.X11.wmStateFullscreen != None)
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{
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if (_glfwLibrary.X11.wmActiveWindow != None)
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{
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// Ask the window manager to raise and focus the GLFW window
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// Only focused windows with the _NET_WM_STATE_FULLSCREEN state end
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// up on top of all other windows ("Stacking order" in EWMH spec)
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XEvent event;
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memset(&event, 0, sizeof(event));
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event.type = ClientMessage;
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event.xclient.window = window->X11.handle;
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event.xclient.format = 32; // Data is 32-bit longs
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event.xclient.message_type = _glfwLibrary.X11.wmActiveWindow;
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event.xclient.data.l[0] = 1; // Sender is a normal application
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event.xclient.data.l[1] = 0; // We don't really know the timestamp
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XSendEvent(_glfwLibrary.X11.display,
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_glfwLibrary.X11.root,
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False,
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SubstructureNotifyMask | SubstructureRedirectMask,
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&event);
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}
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// Ask the window manager to make the GLFW window a fullscreen window
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// Fullscreen windows are undecorated and, when focused, are kept
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// on top of all other windows
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XEvent event;
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memset(&event, 0, sizeof(event));
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event.type = ClientMessage;
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event.xclient.window = window->X11.handle;
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event.xclient.format = 32; // Data is 32-bit longs
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event.xclient.message_type = _glfwLibrary.X11.wmState;
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event.xclient.data.l[0] = _NET_WM_STATE_ADD;
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event.xclient.data.l[1] = _glfwLibrary.X11.wmStateFullscreen;
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event.xclient.data.l[2] = 0; // No secondary property
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event.xclient.data.l[3] = 1; // Sender is a normal application
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XSendEvent(_glfwLibrary.X11.display,
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_glfwLibrary.X11.root,
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False,
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SubstructureNotifyMask | SubstructureRedirectMask,
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&event);
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}
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else if (window->X11.overrideRedirect)
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{
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// In override-redirect mode, we have divorced ourselves from the
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// window manager, so we need to do everything manually
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XRaiseWindow(_glfwLibrary.X11.display, window->X11.handle);
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XSetInputFocus(_glfwLibrary.X11.display, window->X11.handle,
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RevertToParent, CurrentTime);
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XMoveWindow(_glfwLibrary.X11.display, window->X11.handle, 0, 0);
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XResizeWindow(_glfwLibrary.X11.display, window->X11.handle,
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window->width, window->height);
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}
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// HACK: Try to get window inside viewport (for virtual displays) by moving
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// the cursor to the upper left corner (and then to the center)
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// This hack should be harmless on saner systems as well
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XWarpPointer(_glfwLibrary.X11.display, None, window->X11.handle, 0,0,0,0, 0,0);
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XWarpPointer(_glfwLibrary.X11.display, None, window->X11.handle, 0,0,0,0,
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window->width / 2, window->height / 2);
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}
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//========================================================================
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// Leave fullscreen mode
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//========================================================================
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static void leaveFullscreenMode(_GLFWwindow* window)
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{
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_glfwRestoreVideoMode();
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// Did we change the screen saver setting?
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if (_glfwLibrary.X11.saver.changed)
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{
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// Restore old screen saver settings
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XSetScreenSaver(_glfwLibrary.X11.display,
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_glfwLibrary.X11.saver.timeout,
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_glfwLibrary.X11.saver.interval,
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_glfwLibrary.X11.saver.blanking,
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_glfwLibrary.X11.saver.exposure);
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_glfwLibrary.X11.saver.changed = GL_FALSE;
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}
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if (_glfwLibrary.X11.hasEWMH &&
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_glfwLibrary.X11.wmState != None &&
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_glfwLibrary.X11.wmStateFullscreen != None)
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{
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// Ask the window manager to make the GLFW window a normal window
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// Normal windows usually have frames and other decorations
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XEvent event;
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memset(&event, 0, sizeof(event));
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event.type = ClientMessage;
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event.xclient.window = window->X11.handle;
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event.xclient.format = 32; // Data is 32-bit longs
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event.xclient.message_type = _glfwLibrary.X11.wmState;
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event.xclient.data.l[0] = _NET_WM_STATE_REMOVE;
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event.xclient.data.l[1] = _glfwLibrary.X11.wmStateFullscreen;
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event.xclient.data.l[2] = 0; // No secondary property
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event.xclient.data.l[3] = 1; // Sender is a normal application
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XSendEvent(_glfwLibrary.X11.display,
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_glfwLibrary.X11.root,
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False,
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SubstructureNotifyMask | SubstructureRedirectMask,
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&event);
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}
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}
|
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|
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//========================================================================
|
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// Return the GLFW window corresponding to the specified X11 window
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//========================================================================
|
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|
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static _GLFWwindow* findWindow(Window handle)
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{
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_GLFWwindow* window;
|
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|
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for (window = _glfwLibrary.windowListHead; window; window = window->next)
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{
|
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if (window->X11.handle == handle)
|
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return window;
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}
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|
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return NULL;
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}
|
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|
|
|
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//========================================================================
|
|
// Get and process next X event (called by _glfwPlatformPollEvents)
|
|
//========================================================================
|
|
|
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static void processSingleEvent(void)
|
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{
|
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_GLFWwindow* window;
|
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|
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XEvent event;
|
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XNextEvent(_glfwLibrary.X11.display, &event);
|
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|
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switch (event.type)
|
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{
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case KeyPress:
|
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{
|
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// A keyboard key was pressed
|
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window = findWindow(event.xkey.window);
|
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if (window == NULL)
|
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{
|
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fprintf(stderr, "Cannot find GLFW window structure for KeyPress event\n");
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return;
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}
|
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|
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// Translate and report key press
|
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_glfwInputKey(window, translateKey(event.xkey.keycode), GLFW_PRESS);
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|
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// Translate and report character input
|
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_glfwInputChar(window, translateChar(&event.xkey));
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break;
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}
|
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|
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case KeyRelease:
|
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{
|
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// A keyboard key was released
|
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window = findWindow(event.xkey.window);
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if (window == NULL)
|
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{
|
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fprintf(stderr, "Cannot find GLFW window structure for KeyRelease event\n");
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return;
|
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}
|
|
|
|
// Do not report key releases for key repeats. For key repeats we
|
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// will get KeyRelease/KeyPress pairs with similar or identical
|
|
// time stamps. User selected key repeat filtering is handled in
|
|
// _glfwInputKey/_glfwInputChar.
|
|
if (XEventsQueued(_glfwLibrary.X11.display, QueuedAfterReading))
|
|
{
|
|
XEvent nextEvent;
|
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XPeekEvent(_glfwLibrary.X11.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(window, translateKey(event.xkey.keycode), GLFW_RELEASE);
|
|
|
|
break;
|
|
}
|
|
|
|
case ButtonPress:
|
|
{
|
|
// A mouse button was pressed or a scrolling event occurred
|
|
window = findWindow(event.xbutton.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for ButtonPress event\n");
|
|
return;
|
|
}
|
|
|
|
if (event.xbutton.button == Button1)
|
|
_glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_LEFT, GLFW_PRESS);
|
|
else if (event.xbutton.button == Button2)
|
|
_glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS);
|
|
else if (event.xbutton.button == Button3)
|
|
_glfwInputMouseClick(window, 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)
|
|
_glfwInputScroll(window, 0.0, 1.0);
|
|
else if (event.xbutton.button == Button5)
|
|
_glfwInputScroll(window, 0.0, -1.0);
|
|
|
|
else if (event.xbutton.button == Button6)
|
|
_glfwInputScroll(window, -1.0, 0.0);
|
|
else if (event.xbutton.button == Button7)
|
|
_glfwInputScroll(window, 1.0, 0.0);
|
|
|
|
break;
|
|
}
|
|
|
|
case ButtonRelease:
|
|
{
|
|
// A mouse button was released
|
|
window = findWindow(event.xbutton.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for ButtonRelease event\n");
|
|
return;
|
|
}
|
|
|
|
if (event.xbutton.button == Button1)
|
|
{
|
|
_glfwInputMouseClick(window,
|
|
GLFW_MOUSE_BUTTON_LEFT,
|
|
GLFW_RELEASE);
|
|
}
|
|
else if (event.xbutton.button == Button2)
|
|
{
|
|
_glfwInputMouseClick(window,
|
|
GLFW_MOUSE_BUTTON_MIDDLE,
|
|
GLFW_RELEASE);
|
|
}
|
|
else if (event.xbutton.button == Button3)
|
|
{
|
|
_glfwInputMouseClick(window,
|
|
GLFW_MOUSE_BUTTON_RIGHT,
|
|
GLFW_RELEASE);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case EnterNotify:
|
|
{
|
|
// The cursor entered the window
|
|
window = findWindow(event.xcrossing.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for EnterNotify event\n");
|
|
return;
|
|
}
|
|
|
|
if (window->cursorMode == GLFW_CURSOR_HIDDEN)
|
|
hideCursor(window);
|
|
|
|
_glfwInputCursorEnter(window, GL_TRUE);
|
|
break;
|
|
}
|
|
|
|
case LeaveNotify:
|
|
{
|
|
// The cursor left the window
|
|
window = findWindow(event.xcrossing.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for LeaveNotify event\n");
|
|
return;
|
|
}
|
|
|
|
if (window->cursorMode == GLFW_CURSOR_HIDDEN)
|
|
showCursor(window);
|
|
|
|
_glfwInputCursorEnter(window, GL_FALSE);
|
|
break;
|
|
}
|
|
|
|
case MotionNotify:
|
|
{
|
|
// The cursor was moved
|
|
window = findWindow(event.xmotion.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for MotionNotify event\n");
|
|
return;
|
|
}
|
|
|
|
if (event.xmotion.x != window->X11.cursorPosX ||
|
|
event.xmotion.y != window->X11.cursorPosY)
|
|
{
|
|
// The cursor was moved and we didn't do it
|
|
int x, y;
|
|
|
|
if (window->cursorMode == GLFW_CURSOR_CAPTURED)
|
|
{
|
|
if (_glfwLibrary.activeWindow != window)
|
|
break;
|
|
|
|
x = event.xmotion.x - window->X11.cursorPosX;
|
|
y = event.xmotion.y - window->X11.cursorPosY;
|
|
}
|
|
else
|
|
{
|
|
x = event.xmotion.x;
|
|
y = event.xmotion.y;
|
|
}
|
|
|
|
window->X11.cursorPosX = event.xmotion.x;
|
|
window->X11.cursorPosY = event.xmotion.y;
|
|
window->X11.cursorCentered = GL_FALSE;
|
|
|
|
_glfwInputCursorMotion(window, x, y);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case ConfigureNotify:
|
|
{
|
|
// The window configuration changed somehow
|
|
window = findWindow(event.xconfigure.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for ConfigureNotify event\n");
|
|
return;
|
|
}
|
|
|
|
_glfwInputWindowSize(window,
|
|
event.xconfigure.width,
|
|
event.xconfigure.height);
|
|
|
|
_glfwInputWindowPos(window,
|
|
event.xconfigure.x,
|
|
event.xconfigure.y);
|
|
|
|
break;
|
|
}
|
|
|
|
case ClientMessage:
|
|
{
|
|
// Custom client message, probably from the window manager
|
|
window = findWindow(event.xclient.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for ClientMessage event\n");
|
|
return;
|
|
}
|
|
|
|
if ((Atom) event.xclient.data.l[0] == _glfwLibrary.X11.wmDeleteWindow)
|
|
{
|
|
// The window manager was asked to close the window, for example by
|
|
// the user pressing a 'close' window decoration button
|
|
|
|
window->closeRequested = GL_TRUE;
|
|
}
|
|
else if (_glfwLibrary.X11.wmPing != None &&
|
|
(Atom) event.xclient.data.l[0] == _glfwLibrary.X11.wmPing)
|
|
{
|
|
// The window manager is pinging us to make sure we are still
|
|
// responding to events
|
|
|
|
event.xclient.window = _glfwLibrary.X11.root;
|
|
XSendEvent(_glfwLibrary.X11.display,
|
|
event.xclient.window,
|
|
False,
|
|
SubstructureNotifyMask | SubstructureRedirectMask,
|
|
&event);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case MapNotify:
|
|
{
|
|
// The window was mapped
|
|
window = findWindow(event.xmap.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for MapNotify event\n");
|
|
return;
|
|
}
|
|
|
|
_glfwInputWindowIconify(window, GL_FALSE);
|
|
break;
|
|
}
|
|
|
|
case UnmapNotify:
|
|
{
|
|
// The window was unmapped
|
|
window = findWindow(event.xmap.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for UnmapNotify event\n");
|
|
return;
|
|
}
|
|
|
|
_glfwInputWindowIconify(window, GL_TRUE);
|
|
break;
|
|
}
|
|
|
|
case FocusIn:
|
|
{
|
|
// The window gained focus
|
|
window = findWindow(event.xfocus.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for FocusIn event\n");
|
|
return;
|
|
}
|
|
|
|
_glfwInputWindowFocus(window, GL_TRUE);
|
|
|
|
if (window->cursorMode == GLFW_CURSOR_CAPTURED)
|
|
captureCursor(window);
|
|
|
|
break;
|
|
}
|
|
|
|
case FocusOut:
|
|
{
|
|
// The window lost focus
|
|
window = findWindow(event.xfocus.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for FocusOut event\n");
|
|
return;
|
|
}
|
|
|
|
_glfwInputWindowFocus(window, GL_FALSE);
|
|
|
|
if (window->cursorMode == GLFW_CURSOR_CAPTURED)
|
|
showCursor(window);
|
|
|
|
break;
|
|
}
|
|
|
|
case Expose:
|
|
{
|
|
// The window's contents was damaged
|
|
window = findWindow(event.xexpose.window);
|
|
if (window == NULL)
|
|
{
|
|
fprintf(stderr, "Cannot find GLFW window structure for Expose event\n");
|
|
return;
|
|
}
|
|
|
|
_glfwInputWindowDamage(window);
|
|
break;
|
|
}
|
|
|
|
case SelectionClear:
|
|
{
|
|
// The ownership of the selection was lost
|
|
|
|
free(_glfwLibrary.X11.selection.string);
|
|
_glfwLibrary.X11.selection.string = NULL;
|
|
break;
|
|
}
|
|
|
|
case SelectionNotify:
|
|
{
|
|
// The selection conversion status is available
|
|
|
|
XSelectionEvent* request = &event.xselection;
|
|
|
|
if (_glfwReadSelection(request))
|
|
_glfwLibrary.X11.selection.status = _GLFW_CONVERSION_SUCCEEDED;
|
|
else
|
|
_glfwLibrary.X11.selection.status = _GLFW_CONVERSION_FAILED;
|
|
|
|
break;
|
|
}
|
|
|
|
case SelectionRequest:
|
|
{
|
|
// The contents of the selection was requested
|
|
|
|
XSelectionRequestEvent* request = &event.xselectionrequest;
|
|
|
|
XEvent response;
|
|
memset(&response, 0, sizeof(response));
|
|
|
|
response.xselection.property = _glfwWriteSelection(request);
|
|
response.xselection.type = SelectionNotify;
|
|
response.xselection.display = request->display;
|
|
response.xselection.requestor = request->requestor;
|
|
response.xselection.selection = request->selection;
|
|
response.xselection.target = request->target;
|
|
response.xselection.time = request->time;
|
|
|
|
XSendEvent(_glfwLibrary.X11.display,
|
|
request->requestor,
|
|
False, 0, &response);
|
|
break;
|
|
}
|
|
|
|
case DestroyNotify:
|
|
return;
|
|
|
|
default:
|
|
{
|
|
#if defined(_GLFW_HAS_XRANDR)
|
|
switch (event.type - _glfwLibrary.X11.RandR.eventBase)
|
|
{
|
|
case RRScreenChangeNotify:
|
|
{
|
|
// Show XRandR that we really care
|
|
XRRUpdateConfiguration(&event);
|
|
break;
|
|
}
|
|
}
|
|
#endif /*_GLFW_HAS_XRANDR*/
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW internal API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
//========================================================================
|
|
// Processes all pending events
|
|
//========================================================================
|
|
|
|
void _glfwProcessPendingEvents(void)
|
|
{
|
|
int i, count = XPending(_glfwLibrary.X11.display);
|
|
|
|
for (i = 0; i < count; i++)
|
|
processSingleEvent();
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW platform API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
//========================================================================
|
|
// Here is where the window is created, and
|
|
// the OpenGL rendering context is created
|
|
//========================================================================
|
|
|
|
int _glfwPlatformOpenWindow(_GLFWwindow* window,
|
|
const _GLFWwndconfig* wndconfig,
|
|
const _GLFWfbconfig* fbconfig)
|
|
{
|
|
window->refreshRate = wndconfig->refreshRate;
|
|
window->resizable = wndconfig->resizable;
|
|
|
|
if (!_glfwCreateContext(window, wndconfig, fbconfig))
|
|
return GL_FALSE;
|
|
|
|
if (!createWindow(window, wndconfig))
|
|
return GL_FALSE;
|
|
|
|
if (wndconfig->mode == GLFW_FULLSCREEN)
|
|
{
|
|
#if defined(_GLFW_HAS_XRANDR)
|
|
// Request screen change notifications
|
|
if (_glfwLibrary.X11.RandR.available)
|
|
{
|
|
XRRSelectInput(_glfwLibrary.X11.display,
|
|
window->X11.handle,
|
|
RRScreenChangeNotifyMask);
|
|
}
|
|
#endif /*_GLFW_HAS_XRANDR*/
|
|
|
|
enterFullscreenMode(window);
|
|
}
|
|
|
|
// Process the window map event and any other that may have arrived
|
|
_glfwProcessPendingEvents();
|
|
|
|
// Retrieve and set initial cursor position
|
|
{
|
|
Window cursorWindow, cursorRoot;
|
|
int windowX, windowY, rootX, rootY;
|
|
unsigned int mask;
|
|
|
|
XQueryPointer(_glfwLibrary.X11.display,
|
|
window->X11.handle,
|
|
&cursorRoot,
|
|
&cursorWindow,
|
|
&rootX, &rootY,
|
|
&windowX, &windowY,
|
|
&mask);
|
|
|
|
// TODO: Probably check for some corner cases here.
|
|
|
|
window->cursorPosX = windowX;
|
|
window->cursorPosY = windowY;
|
|
}
|
|
|
|
return GL_TRUE;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Properly kill the window/video display
|
|
//========================================================================
|
|
|
|
void _glfwPlatformCloseWindow(_GLFWwindow* window)
|
|
{
|
|
if (window->mode == GLFW_FULLSCREEN)
|
|
leaveFullscreenMode(window);
|
|
|
|
_glfwDestroyContext(window);
|
|
|
|
if (window->X11.handle)
|
|
{
|
|
XUnmapWindow(_glfwLibrary.X11.display, window->X11.handle);
|
|
XDestroyWindow(_glfwLibrary.X11.display, window->X11.handle);
|
|
window->X11.handle = (Window) 0;
|
|
}
|
|
|
|
if (window->X11.colormap)
|
|
{
|
|
XFreeColormap(_glfwLibrary.X11.display, window->X11.colormap);
|
|
window->X11.colormap = (Colormap) 0;
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window title
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
|
|
{
|
|
Atom type = XInternAtom(_glfwLibrary.X11.display, "UTF8_STRING", False);
|
|
|
|
#if defined(X_HAVE_UTF8_STRING)
|
|
Xutf8SetWMProperties(_glfwLibrary.X11.display,
|
|
window->X11.handle,
|
|
title, title,
|
|
NULL, 0,
|
|
NULL, NULL, NULL);
|
|
#else
|
|
// This may be a slightly better fallback than using XStoreName and
|
|
// XSetIconName, which always store their arguments using STRING
|
|
XmbSetWMProperties(_glfwLibrary.X11.display,
|
|
window->X11.handle,
|
|
title, title,
|
|
NULL, 0,
|
|
NULL, NULL, NULL);
|
|
#endif
|
|
|
|
if (_glfwLibrary.X11.wmName != None)
|
|
{
|
|
XChangeProperty(_glfwLibrary.X11.display, window->X11.handle,
|
|
_glfwLibrary.X11.wmName, type, 8,
|
|
PropModeReplace,
|
|
(unsigned char*) title, strlen(title));
|
|
}
|
|
|
|
if (_glfwLibrary.X11.wmIconName != None)
|
|
{
|
|
XChangeProperty(_glfwLibrary.X11.display, window->X11.handle,
|
|
_glfwLibrary.X11.wmIconName, type, 8,
|
|
PropModeReplace,
|
|
(unsigned char*) title, strlen(title));
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window size
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
|
|
{
|
|
int mode = 0, rate, sizeChanged = GL_FALSE;
|
|
XSizeHints* sizehints;
|
|
|
|
rate = window->refreshRate;
|
|
|
|
if (window->mode == GLFW_FULLSCREEN)
|
|
{
|
|
// Get the closest matching video mode for the specified window size
|
|
mode = _glfwGetClosestVideoMode(&width, &height, &rate);
|
|
}
|
|
|
|
if (!window->resizable)
|
|
{
|
|
// 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.X11.display, window->X11.handle, sizehints);
|
|
XFree(sizehints);
|
|
}
|
|
|
|
// Change window size before changing fullscreen mode?
|
|
if (window->mode == GLFW_FULLSCREEN && (width > window->width))
|
|
{
|
|
XResizeWindow(_glfwLibrary.X11.display, window->X11.handle, width, height);
|
|
sizeChanged = GL_TRUE;
|
|
}
|
|
|
|
if (window->mode == GLFW_FULLSCREEN)
|
|
{
|
|
// Change video mode, keeping current refresh rate
|
|
_glfwSetVideoModeMODE(mode, window->refreshRate);
|
|
}
|
|
|
|
// Set window size (if not already changed)
|
|
if (!sizeChanged)
|
|
XResizeWindow(_glfwLibrary.X11.display, window->X11.handle, width, height);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window position.
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetWindowPos(_GLFWwindow* window, int x, int y)
|
|
{
|
|
XMoveWindow(_glfwLibrary.X11.display, window->X11.handle, x, y);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Window iconification
|
|
//========================================================================
|
|
|
|
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
|
|
{
|
|
if (window->X11.overrideRedirect)
|
|
{
|
|
// We can't iconify/restore override-redirect windows, as that's
|
|
// performed by the window manager
|
|
return;
|
|
}
|
|
|
|
XIconifyWindow(_glfwLibrary.X11.display,
|
|
window->X11.handle,
|
|
_glfwLibrary.X11.screen);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Window un-iconification
|
|
//========================================================================
|
|
|
|
void _glfwPlatformRestoreWindow(_GLFWwindow* window)
|
|
{
|
|
if (window->X11.overrideRedirect)
|
|
{
|
|
// We can't iconify/restore override-redirect windows, as that's
|
|
// performed by the window manager
|
|
return;
|
|
}
|
|
|
|
XMapWindow(_glfwLibrary.X11.display, window->X11.handle);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Read back framebuffer parameters from the context
|
|
//========================================================================
|
|
|
|
void _glfwPlatformRefreshWindowParams(void)
|
|
{
|
|
#if defined(_GLFW_HAS_XRANDR)
|
|
XRRScreenConfiguration* sc;
|
|
#endif /*_GLFW_HAS_XRANDR*/
|
|
#if defined(_GLFW_HAS_XF86VIDMODE)
|
|
XF86VidModeModeLine modeline;
|
|
int dotclock;
|
|
float pixels_per_second, pixels_per_frame;
|
|
#endif /*_GLFW_HAS_XF86VIDMODE*/
|
|
_GLFWwindow* window = _glfwLibrary.currentWindow;
|
|
|
|
// Retrieve refresh rate if possible
|
|
if (_glfwLibrary.X11.RandR.available)
|
|
{
|
|
#if defined(_GLFW_HAS_XRANDR)
|
|
sc = XRRGetScreenInfo(_glfwLibrary.X11.display, _glfwLibrary.X11.root);
|
|
window->refreshRate = XRRConfigCurrentRate(sc);
|
|
XRRFreeScreenConfigInfo(sc);
|
|
#endif /*_GLFW_HAS_XRANDR*/
|
|
}
|
|
else if (_glfwLibrary.X11.VidMode.available)
|
|
{
|
|
#if defined(_GLFW_HAS_XF86VIDMODE)
|
|
// Use the XF86VidMode extension to get current video mode
|
|
XF86VidModeGetModeLine(_glfwLibrary.X11.display,
|
|
_glfwLibrary.X11.screen,
|
|
&dotclock, &modeline);
|
|
pixels_per_second = 1000.0f * (float) dotclock;
|
|
pixels_per_frame = (float) modeline.htotal * modeline.vtotal;
|
|
window->refreshRate = (int) (pixels_per_second / pixels_per_frame + 0.5);
|
|
#endif /*_GLFW_HAS_XF86VIDMODE*/
|
|
}
|
|
else
|
|
{
|
|
// Zero means unknown according to the GLFW spec
|
|
window->refreshRate = 0;
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Poll for new window and input events
|
|
//========================================================================
|
|
|
|
void _glfwPlatformPollEvents(void)
|
|
{
|
|
_GLFWwindow* window;
|
|
|
|
// Process all pending events
|
|
while (XPending(_glfwLibrary.X11.display))
|
|
processSingleEvent();
|
|
|
|
// Did the cursor move in an active window that has captured the cursor
|
|
window = _glfwLibrary.activeWindow;
|
|
if (window)
|
|
{
|
|
if (window->cursorMode == GLFW_CURSOR_CAPTURED &&
|
|
!window->X11.cursorCentered)
|
|
{
|
|
_glfwPlatformSetCursorPos(window,
|
|
window->width / 2,
|
|
window->height / 2);
|
|
window->X11.cursorCentered = GL_TRUE;
|
|
|
|
// 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.X11.display );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Wait for new window and input events
|
|
//========================================================================
|
|
|
|
void _glfwPlatformWaitEvents(void)
|
|
{
|
|
XEvent event;
|
|
|
|
// Block waiting for an event to arrive
|
|
XNextEvent(_glfwLibrary.X11.display, &event);
|
|
XPutBackEvent(_glfwLibrary.X11.display, &event);
|
|
|
|
_glfwPlatformPollEvents();
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set physical cursor position
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetCursorPos(_GLFWwindow* window, int x, int y)
|
|
{
|
|
// Store the new position so we can recognise it later
|
|
window->X11.cursorPosX = x;
|
|
window->X11.cursorPosY = y;
|
|
|
|
XWarpPointer(_glfwLibrary.X11.display, None, window->X11.handle, 0,0,0,0, x, y);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set physical cursor mode
|
|
//========================================================================
|
|
|
|
void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
|
|
{
|
|
switch (mode)
|
|
{
|
|
case GLFW_CURSOR_NORMAL:
|
|
showCursor(window);
|
|
break;
|
|
case GLFW_CURSOR_HIDDEN:
|
|
hideCursor(window);
|
|
break;
|
|
case GLFW_CURSOR_CAPTURED:
|
|
captureCursor(window);
|
|
break;
|
|
}
|
|
}
|
|
|