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kitty/glfw/x11_window.c
Kovid Goyal 5a2f2767ad
Fix window icon not working on X11 with 64bits 
Apparently on X11 the maximum icon size is 128x128. 256x256 is too
large for the X11 protocol because the X server unserializes the icons
using "unsigned long" which is 64 bits on Linux. So we have to use
64bits per pixel instead of 32, with 32bits padded to 0.

While there I also got rid of the kitty.rgba file replacing it with a
128x128 PNG file.

Fixes #3260
2021-01-25 20:54:19 +05:30

3120 lines
98 KiB
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//========================================================================
// GLFW 3.4 X11 - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
// It is fine to use C99 in this file because it will not be built with VS
//========================================================================
#define _GNU_SOURCE
#include "internal.h"
#include "backend_utils.h"
#include "linux_notify.h"
#include "../kitty/monotonic.h"
#include <X11/cursorfont.h>
#include <X11/Xmd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <errno.h>
#include <assert.h>
// Action for EWMH client messages
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
// Additional mouse button names for XButtonEvent
#define Button6 6
#define Button7 7
// Motif WM hints flags
#define MWM_HINTS_DECORATIONS 2
#define MWM_DECOR_ALL 1
#define _GLFW_XDND_VERSION 5
// Wait for data to arrive using poll
// This avoids blocking other threads via the per-display Xlib lock that also
// covers GLX functions
//
static unsigned _glfwDispatchX11Events(void);
static void
handleEvents(monotonic_t timeout) {
EVDBG("starting handleEvents(%.2f)", monotonic_t_to_s_double(timeout));
int display_read_ok = pollForEvents(&_glfw.x11.eventLoopData, timeout, NULL);
EVDBG("display_read_ok: %d", display_read_ok);
if (display_read_ok) {
unsigned dispatched = _glfwDispatchX11Events();
(void)dispatched;
EVDBG("dispatched %u X11 events", dispatched);
}
glfw_ibus_dispatch(&_glfw.x11.xkb.ibus);
glfw_dbus_session_bus_dispatch();
EVDBG("other dispatch done");
if (_glfw.x11.eventLoopData.wakeup_fd_ready) check_for_wakeup_events(&_glfw.x11.eventLoopData);
}
static bool
waitForX11Event(monotonic_t timeout) {
// returns true if there is X11 data waiting to be read, does not run watches and timers
monotonic_t end_time = glfwGetTime() + timeout;
while(true) {
if (timeout >= 0) {
const int result = pollWithTimeout(_glfw.x11.eventLoopData.fds, 1, timeout);
if (result > 0) return true;
timeout = end_time - glfwGetTime();
if (timeout <= 0) return false;
if (result < 0 && (errno == EINTR || errno == EAGAIN)) continue;
return false;
} else {
const int result = poll(_glfw.x11.eventLoopData.fds, 1, -1);
if (result > 0) return true;
if (result < 0 && (errno == EINTR || errno == EAGAIN)) continue;
return false;
}
}
}
// Waits until a VisibilityNotify event arrives for the specified window or the
// timeout period elapses (ICCCM section 4.2.2)
//
static bool waitForVisibilityNotify(_GLFWwindow* window)
{
XEvent dummy;
while (!XCheckTypedWindowEvent(_glfw.x11.display,
window->x11.handle,
VisibilityNotify,
&dummy))
{
if (!waitForX11Event(ms_to_monotonic_t(100ll)))
return false;
}
return true;
}
// Returns whether the window is iconified
//
static int getWindowState(_GLFWwindow* window)
{
int result = WithdrawnState;
struct {
CARD32 state;
Window icon;
} *state = NULL;
if (_glfwGetWindowPropertyX11(window->x11.handle,
_glfw.x11.WM_STATE,
_glfw.x11.WM_STATE,
(unsigned char**) &state) >= 2)
{
result = state->state;
}
if (state)
XFree(state);
return result;
}
// Returns whether the event is a selection event
//
static Bool isSelectionEvent(Display* display UNUSED, XEvent* event, XPointer pointer UNUSED)
{
if (event->xany.window != _glfw.x11.helperWindowHandle)
return False;
return event->type == SelectionRequest ||
event->type == SelectionNotify ||
event->type == SelectionClear;
}
// Returns whether it is a _NET_FRAME_EXTENTS event for the specified window
//
static Bool isFrameExtentsEvent(Display* display UNUSED, XEvent* event, XPointer pointer)
{
_GLFWwindow* window = (_GLFWwindow*) pointer;
return event->type == PropertyNotify &&
event->xproperty.state == PropertyNewValue &&
event->xproperty.window == window->x11.handle &&
event->xproperty.atom == _glfw.x11.NET_FRAME_EXTENTS;
}
// Returns whether it is a property event for the specified selection transfer
//
static Bool isSelPropNewValueNotify(Display* display UNUSED, XEvent* event, XPointer pointer)
{
XEvent* notification = (XEvent*) pointer;
return event->type == PropertyNotify &&
event->xproperty.state == PropertyNewValue &&
event->xproperty.window == notification->xselection.requestor &&
event->xproperty.atom == notification->xselection.property;
}
// Translates an X event modifier state mask
//
static int translateState(int state)
{
int mods = 0;
if (state & ShiftMask)
mods |= GLFW_MOD_SHIFT;
if (state & ControlMask)
mods |= GLFW_MOD_CONTROL;
if (state & Mod1Mask)
mods |= GLFW_MOD_ALT;
if (state & Mod4Mask)
mods |= GLFW_MOD_SUPER;
if (state & LockMask)
mods |= GLFW_MOD_CAPS_LOCK;
if (state & Mod2Mask)
mods |= GLFW_MOD_NUM_LOCK;
return mods;
}
// Sends an EWMH or ICCCM event to the window manager
//
static void sendEventToWM(_GLFWwindow* window, Atom type,
long a, long b, long c, long d, long e)
{
XEvent event = { ClientMessage };
event.xclient.window = window->x11.handle;
event.xclient.format = 32; // Data is 32-bit longs
event.xclient.message_type = type;
event.xclient.data.l[0] = a;
event.xclient.data.l[1] = b;
event.xclient.data.l[2] = c;
event.xclient.data.l[3] = d;
event.xclient.data.l[4] = e;
XSendEvent(_glfw.x11.display, _glfw.x11.root,
False,
SubstructureNotifyMask | SubstructureRedirectMask,
&event);
}
// Updates the normal hints according to the window settings
//
static void updateNormalHints(_GLFWwindow* window, int width, int height)
{
XSizeHints* hints = XAllocSizeHints();
if (!window->monitor)
{
if (window->resizable)
{
if (window->minwidth != GLFW_DONT_CARE &&
window->minheight != GLFW_DONT_CARE)
{
hints->flags |= PMinSize;
hints->min_width = window->minwidth;
hints->min_height = window->minheight;
}
if (window->maxwidth != GLFW_DONT_CARE &&
window->maxheight != GLFW_DONT_CARE)
{
hints->flags |= PMaxSize;
hints->max_width = window->maxwidth;
hints->max_height = window->maxheight;
}
if (window->numer != GLFW_DONT_CARE &&
window->denom != GLFW_DONT_CARE)
{
hints->flags |= PAspect;
hints->min_aspect.x = hints->max_aspect.x = window->numer;
hints->min_aspect.y = hints->max_aspect.y = window->denom;
}
if (window->widthincr != GLFW_DONT_CARE &&
window->heightincr != GLFW_DONT_CARE)
{
hints->flags |= PResizeInc;
hints->width_inc = window->widthincr;
hints->height_inc = window->heightincr;
}
}
else
{
hints->flags |= (PMinSize | PMaxSize);
hints->min_width = hints->max_width = width;
hints->min_height = hints->max_height = height;
}
}
hints->flags |= PWinGravity;
hints->win_gravity = StaticGravity;
XSetWMNormalHints(_glfw.x11.display, window->x11.handle, hints);
XFree(hints);
}
static inline bool
is_window_fullscreen(_GLFWwindow* window)
{
Atom* states;
unsigned long i;
bool ans = false;
if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_FULLSCREEN)
return ans;
const unsigned long count =
_glfwGetWindowPropertyX11(window->x11.handle,
_glfw.x11.NET_WM_STATE,
XA_ATOM,
(unsigned char**) &states);
for (i = 0; i < count; i++)
{
if (states[i] == _glfw.x11.NET_WM_STATE_FULLSCREEN)
{
ans = true;
break;
}
}
if (states)
XFree(states);
return ans;
}
static inline void
set_fullscreen(_GLFWwindow *window, bool on) {
if (_glfw.x11.NET_WM_STATE && _glfw.x11.NET_WM_STATE_FULLSCREEN) {
sendEventToWM(window,
_glfw.x11.NET_WM_STATE,
on ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE,
_glfw.x11.NET_WM_STATE_FULLSCREEN,
0, 1, 0);
// Enable compositor bypass
if (!window->x11.transparent)
{
if (on) {
const unsigned long value = 1;
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_BYPASS_COMPOSITOR, XA_CARDINAL, 32,
PropModeReplace, (unsigned char*) &value, 1);
} else {
XDeleteProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_BYPASS_COMPOSITOR);
}
}
} else {
static bool warned = false;
if (!warned) {
warned = true;
_glfwInputErrorX11(GLFW_PLATFORM_ERROR,
"X11: Failed to toggle fullscreen, the window manager does not support it");
}
}
}
bool
_glfwPlatformToggleFullscreen(_GLFWwindow *window, unsigned int flags UNUSED) {
bool already_fullscreen = is_window_fullscreen(window);
set_fullscreen(window, !already_fullscreen);
return !already_fullscreen;
}
// Updates the full screen status of the window
//
static void updateWindowMode(_GLFWwindow* window)
{
if (window->monitor)
{
if (_glfw.x11.xinerama.available &&
_glfw.x11.NET_WM_FULLSCREEN_MONITORS)
{
sendEventToWM(window,
_glfw.x11.NET_WM_FULLSCREEN_MONITORS,
window->monitor->x11.index,
window->monitor->x11.index,
window->monitor->x11.index,
window->monitor->x11.index,
0);
}
set_fullscreen(window, true);
}
else
{
if (_glfw.x11.xinerama.available &&
_glfw.x11.NET_WM_FULLSCREEN_MONITORS)
{
XDeleteProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_FULLSCREEN_MONITORS);
}
set_fullscreen(window, false);
}
}
// Encode a Unicode code point to a UTF-8 stream
// Based on cutef8 by Jeff Bezanson (Public Domain)
//
static size_t encodeUTF8(char* s, unsigned int ch)
{
size_t count = 0;
if (ch < 0x80)
s[count++] = (char) ch;
else if (ch < 0x800)
{
s[count++] = (ch >> 6) | 0xc0;
s[count++] = (ch & 0x3f) | 0x80;
}
else if (ch < 0x10000)
{
s[count++] = (ch >> 12) | 0xe0;
s[count++] = ((ch >> 6) & 0x3f) | 0x80;
s[count++] = (ch & 0x3f) | 0x80;
}
else if (ch < 0x110000)
{
s[count++] = (ch >> 18) | 0xf0;
s[count++] = ((ch >> 12) & 0x3f) | 0x80;
s[count++] = ((ch >> 6) & 0x3f) | 0x80;
s[count++] = (ch & 0x3f) | 0x80;
}
return count;
}
// Convert the specified Latin-1 string to UTF-8
//
static char* convertLatin1toUTF8(const char* source)
{
size_t size = 1;
const char* sp;
if (source) {
for (sp = source; *sp; sp++)
size += (*sp & 0x80) ? 2 : 1;
}
char* target = calloc(size, 1);
char* tp = target;
if (source) {
for (sp = source; *sp; sp++)
tp += encodeUTF8(tp, *sp);
}
return target;
}
// Updates the cursor image according to its cursor mode
//
static void updateCursorImage(_GLFWwindow* window)
{
if (window->cursorMode == GLFW_CURSOR_NORMAL)
{
if (window->cursor)
{
XDefineCursor(_glfw.x11.display, window->x11.handle,
window->cursor->x11.handle);
}
else
XUndefineCursor(_glfw.x11.display, window->x11.handle);
}
else
{
XDefineCursor(_glfw.x11.display, window->x11.handle,
_glfw.x11.hiddenCursorHandle);
}
}
// Enable XI2 raw mouse motion events
//
static void enableRawMouseMotion(_GLFWwindow* window UNUSED)
{
XIEventMask em;
unsigned char mask[XIMaskLen(XI_RawMotion)] = { 0 };
em.deviceid = XIAllMasterDevices;
em.mask_len = sizeof(mask);
em.mask = mask;
XISetMask(mask, XI_RawMotion);
XISelectEvents(_glfw.x11.display, _glfw.x11.root, &em, 1);
}
// Disable XI2 raw mouse motion events
//
static void disableRawMouseMotion(_GLFWwindow* window UNUSED)
{
XIEventMask em;
unsigned char mask[] = { 0 };
em.deviceid = XIAllMasterDevices;
em.mask_len = sizeof(mask);
em.mask = mask;
XISelectEvents(_glfw.x11.display, _glfw.x11.root, &em, 1);
}
// Apply disabled cursor mode to a focused window
//
static void disableCursor(_GLFWwindow* window)
{
if (window->rawMouseMotion)
enableRawMouseMotion(window);
_glfw.x11.disabledCursorWindow = window;
_glfwPlatformGetCursorPos(window,
&_glfw.x11.restoreCursorPosX,
&_glfw.x11.restoreCursorPosY);
updateCursorImage(window);
_glfwCenterCursorInContentArea(window);
XGrabPointer(_glfw.x11.display, window->x11.handle, True,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync,
window->x11.handle,
_glfw.x11.hiddenCursorHandle,
CurrentTime);
}
// Exit disabled cursor mode for the specified window
//
static void enableCursor(_GLFWwindow* window)
{
if (window->rawMouseMotion)
disableRawMouseMotion(window);
_glfw.x11.disabledCursorWindow = NULL;
XUngrabPointer(_glfw.x11.display, CurrentTime);
_glfwPlatformSetCursorPos(window,
_glfw.x11.restoreCursorPosX,
_glfw.x11.restoreCursorPosY);
updateCursorImage(window);
}
// Create the X11 window (and its colormap)
//
static bool createNativeWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
Visual* visual, int depth)
{
int width = wndconfig->width;
int height = wndconfig->height;
if (wndconfig->scaleToMonitor)
{
width *= (int)_glfw.x11.contentScaleX;
height *= (int)_glfw.x11.contentScaleY;
}
// Create a colormap based on the visual used by the current context
window->x11.colormap = XCreateColormap(_glfw.x11.display,
_glfw.x11.root,
visual,
AllocNone);
window->x11.transparent = _glfwIsVisualTransparentX11(visual);
XSetWindowAttributes wa = { 0 };
wa.colormap = window->x11.colormap;
wa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask |
PointerMotionMask | ButtonPressMask | ButtonReleaseMask |
ExposureMask | FocusChangeMask | VisibilityChangeMask |
EnterWindowMask | LeaveWindowMask | PropertyChangeMask;
_glfwGrabErrorHandlerX11();
window->x11.parent = _glfw.x11.root;
window->x11.handle = XCreateWindow(_glfw.x11.display,
_glfw.x11.root,
0, 0, // Position
width, height,
0, // Border width
depth, // Color depth
InputOutput,
visual,
CWBorderPixel | CWColormap | CWEventMask,
&wa);
_glfwReleaseErrorHandlerX11();
if (!window->x11.handle)
{
_glfwInputErrorX11(GLFW_PLATFORM_ERROR,
"X11: Failed to create window");
return false;
}
XSaveContext(_glfw.x11.display,
window->x11.handle,
_glfw.x11.context,
(XPointer) window);
if (!wndconfig->decorated)
_glfwPlatformSetWindowDecorated(window, false);
if (_glfw.x11.NET_WM_STATE && !window->monitor)
{
Atom states[3];
int count = 0;
if (wndconfig->floating)
{
if (_glfw.x11.NET_WM_STATE_ABOVE)
states[count++] = _glfw.x11.NET_WM_STATE_ABOVE;
}
if (wndconfig->maximized)
{
if (_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT &&
_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
{
states[count++] = _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT;
states[count++] = _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ;
window->x11.maximized = true;
}
}
if (count)
{
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_STATE, XA_ATOM, 32,
PropModeReplace, (unsigned char*) states, count);
}
}
// Declare the WM protocols supported by GLFW
{
Atom protocols[] =
{
_glfw.x11.WM_DELETE_WINDOW,
_glfw.x11.NET_WM_PING
};
XSetWMProtocols(_glfw.x11.display, window->x11.handle,
protocols, sizeof(protocols) / sizeof(Atom));
}
// Declare our PID
{
const long pid = getpid();
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_PID, XA_CARDINAL, 32,
PropModeReplace,
(unsigned char*) &pid, 1);
}
if (_glfw.x11.NET_WM_WINDOW_TYPE && _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL)
{
Atom type = _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL;
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_WINDOW_TYPE, XA_ATOM, 32,
PropModeReplace, (unsigned char*) &type, 1);
}
// Set ICCCM WM_HINTS property
{
XWMHints* hints = XAllocWMHints();
if (!hints)
{
_glfwInputError(GLFW_OUT_OF_MEMORY,
"X11: Failed to allocate WM hints");
return false;
}
hints->flags = StateHint;
hints->initial_state = NormalState;
XSetWMHints(_glfw.x11.display, window->x11.handle, hints);
XFree(hints);
}
updateNormalHints(window, width, height);
// Set ICCCM WM_CLASS property
{
XClassHint* hint = XAllocClassHint();
if (strlen(wndconfig->x11.instanceName) &&
strlen(wndconfig->x11.className))
{
hint->res_name = (char*) wndconfig->x11.instanceName;
hint->res_class = (char*) wndconfig->x11.className;
}
else
{
const char* resourceName = getenv("RESOURCE_NAME");
if (resourceName && strlen(resourceName))
hint->res_name = (char*) resourceName;
else if (strlen(wndconfig->title))
hint->res_name = (char*) wndconfig->title;
else
hint->res_name = (char*) "glfw-application";
if (strlen(wndconfig->title))
hint->res_class = (char*) wndconfig->title;
else
hint->res_class = (char*) "GLFW-Application";
}
XSetClassHint(_glfw.x11.display, window->x11.handle, hint);
XFree(hint);
}
// Announce support for Xdnd (drag and drop)
{
const Atom version = _GLFW_XDND_VERSION;
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.XdndAware, XA_ATOM, 32,
PropModeReplace, (unsigned char*) &version, 1);
}
_glfwPlatformSetWindowTitle(window, wndconfig->title);
_glfwPlatformGetWindowPos(window, &window->x11.xpos, &window->x11.ypos);
_glfwPlatformGetWindowSize(window, &window->x11.width, &window->x11.height);
return true;
}
// Set the specified property to the selection converted to the requested target
//
static Atom writeTargetToProperty(const XSelectionRequestEvent* request)
{
int i;
char* selectionString = NULL;
const Atom formats[] = { _glfw.x11.UTF8_STRING, XA_STRING };
const int formatCount = sizeof(formats) / sizeof(formats[0]);
if (request->selection == _glfw.x11.PRIMARY)
selectionString = _glfw.x11.primarySelectionString;
else
selectionString = _glfw.x11.clipboardString;
if (request->property == None)
{
// The requester is a legacy client (ICCCM section 2.2)
// We don't support legacy clients, so fail here
return None;
}
if (request->target == _glfw.x11.TARGETS)
{
// The list of supported targets was requested
const Atom targets[] = { _glfw.x11.TARGETS,
_glfw.x11.MULTIPLE,
_glfw.x11.UTF8_STRING,
XA_STRING };
XChangeProperty(_glfw.x11.display,
request->requestor,
request->property,
XA_ATOM,
32,
PropModeReplace,
(unsigned char*) targets,
sizeof(targets) / sizeof(targets[0]));
return request->property;
}
if (request->target == _glfw.x11.MULTIPLE)
{
// Multiple conversions were requested
Atom* targets;
unsigned long i, count;
count = _glfwGetWindowPropertyX11(request->requestor,
request->property,
_glfw.x11.ATOM_PAIR,
(unsigned char**) &targets);
for (i = 0; i < count; i += 2)
{
int j;
for (j = 0; j < formatCount; j++)
{
if (targets[i] == formats[j])
break;
}
if (j < formatCount)
{
if (selectionString) XChangeProperty(_glfw.x11.display,
request->requestor,
targets[i + 1],
targets[i],
8,
PropModeReplace,
(unsigned char *) selectionString,
strlen(selectionString));
}
else
targets[i + 1] = None;
}
XChangeProperty(_glfw.x11.display,
request->requestor,
request->property,
_glfw.x11.ATOM_PAIR,
32,
PropModeReplace,
(unsigned char*) targets,
count);
XFree(targets);
return request->property;
}
if (request->target == _glfw.x11.SAVE_TARGETS)
{
// The request is a check whether we support SAVE_TARGETS
// It should be handled as a no-op side effect target
XChangeProperty(_glfw.x11.display,
request->requestor,
request->property,
_glfw.x11.NULL_,
32,
PropModeReplace,
NULL,
0);
return request->property;
}
// Conversion to a data target was requested
for (i = 0; i < formatCount; i++)
{
if (request->target == formats[i])
{
// The requested target is one we support
if (selectionString) XChangeProperty(_glfw.x11.display,
request->requestor,
request->property,
request->target,
8,
PropModeReplace,
(unsigned char *) selectionString,
strlen(selectionString));
return request->property;
}
}
// The requested target is not supported
return None;
}
static void handleSelectionClear(XEvent* event)
{
if (event->xselectionclear.selection == _glfw.x11.PRIMARY)
{
free(_glfw.x11.primarySelectionString);
_glfw.x11.primarySelectionString = NULL;
}
else
{
free(_glfw.x11.clipboardString);
_glfw.x11.clipboardString = NULL;
}
}
static void handleSelectionRequest(XEvent* event)
{
const XSelectionRequestEvent* request = &event->xselectionrequest;
XEvent reply = { SelectionNotify };
reply.xselection.property = writeTargetToProperty(request);
reply.xselection.display = request->display;
reply.xselection.requestor = request->requestor;
reply.xselection.selection = request->selection;
reply.xselection.target = request->target;
reply.xselection.time = request->time;
XSendEvent(_glfw.x11.display, request->requestor, False, 0, &reply);
}
static const char* getSelectionString(Atom selection)
{
char** selectionString = NULL;
const Atom targets[] = { _glfw.x11.UTF8_STRING, XA_STRING };
const size_t targetCount = sizeof(targets) / sizeof(targets[0]);
if (selection == _glfw.x11.PRIMARY)
selectionString = &_glfw.x11.primarySelectionString;
else
selectionString = &_glfw.x11.clipboardString;
if (XGetSelectionOwner(_glfw.x11.display, selection) ==
_glfw.x11.helperWindowHandle)
{
// Instead of doing a large number of X round-trips just to put this
// string into a window property and then read it back, just return it
return *selectionString;
}
free(*selectionString);
*selectionString = NULL;
for (size_t i = 0; i < targetCount; i++)
{
char* data;
Atom actualType;
int actualFormat;
unsigned long itemCount, bytesAfter;
monotonic_t start = glfwGetTime();
XEvent notification, dummy;
XConvertSelection(_glfw.x11.display,
selection,
targets[i],
_glfw.x11.GLFW_SELECTION,
_glfw.x11.helperWindowHandle,
CurrentTime);
while (!XCheckTypedWindowEvent(_glfw.x11.display,
_glfw.x11.helperWindowHandle,
SelectionNotify,
&notification))
{
monotonic_t time = glfwGetTime();
if (time - start > s_to_monotonic_t(2ll))
return "";
waitForX11Event(s_to_monotonic_t(2ll) - (time - start));
}
if (notification.xselection.property == None)
continue;
XCheckIfEvent(_glfw.x11.display,
&dummy,
isSelPropNewValueNotify,
(XPointer) &notification);
XGetWindowProperty(_glfw.x11.display,
notification.xselection.requestor,
notification.xselection.property,
0,
LONG_MAX,
True,
AnyPropertyType,
&actualType,
&actualFormat,
&itemCount,
&bytesAfter,
(unsigned char**) &data);
if (actualType == _glfw.x11.INCR)
{
size_t size = 1;
char* string = NULL;
for (;;)
{
start = glfwGetTime();
while (!XCheckIfEvent(_glfw.x11.display,
&dummy,
isSelPropNewValueNotify,
(XPointer) &notification))
{
monotonic_t time = glfwGetTime();
if (time - start > s_to_monotonic_t(2ll)) {
free(string);
return "";
}
waitForX11Event(s_to_monotonic_t(2ll) - (time - start));
}
XFree(data);
XGetWindowProperty(_glfw.x11.display,
notification.xselection.requestor,
notification.xselection.property,
0,
LONG_MAX,
True,
AnyPropertyType,
&actualType,
&actualFormat,
&itemCount,
&bytesAfter,
(unsigned char**) &data);
if (itemCount)
{
size += itemCount;
string = realloc(string, size);
string[size - itemCount - 1] = '\0';
strcat(string, data);
}
if (!itemCount)
{
if (targets[i] == XA_STRING)
{
*selectionString = convertLatin1toUTF8(string);
free(string);
}
else
*selectionString = string;
break;
}
}
}
else if (actualType == targets[i])
{
if (targets[i] == XA_STRING)
*selectionString = convertLatin1toUTF8(data);
else
*selectionString = _glfw_strdup(data);
}
XFree(data);
if (*selectionString)
break;
}
if (!*selectionString)
{
_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
"X11: Failed to convert selection to string");
}
return *selectionString;
}
// Make the specified window and its video mode active on its monitor
//
static void acquireMonitor(_GLFWwindow* window)
{
if (_glfw.x11.saver.count == 0)
{
// Remember old screen saver settings
XGetScreenSaver(_glfw.x11.display,
&_glfw.x11.saver.timeout,
&_glfw.x11.saver.interval,
&_glfw.x11.saver.blanking,
&_glfw.x11.saver.exposure);
// Disable screen saver
XSetScreenSaver(_glfw.x11.display, 0, 0, DontPreferBlanking,
DefaultExposures);
}
if (!window->monitor->window)
_glfw.x11.saver.count++;
_glfwSetVideoModeX11(window->monitor, &window->videoMode);
_glfwInputMonitorWindow(window->monitor, window);
}
// Remove the window and restore the original video mode
//
static void releaseMonitor(_GLFWwindow* window)
{
if (window->monitor->window != window)
return;
_glfwInputMonitorWindow(window->monitor, NULL);
_glfwRestoreVideoModeX11(window->monitor);
_glfw.x11.saver.count--;
if (_glfw.x11.saver.count == 0)
{
// Restore old screen saver settings
XSetScreenSaver(_glfw.x11.display,
_glfw.x11.saver.timeout,
_glfw.x11.saver.interval,
_glfw.x11.saver.blanking,
_glfw.x11.saver.exposure);
}
}
static void onConfigChange(void)
{
float xscale, yscale;
_glfwGetSystemContentScaleX11(&xscale, &yscale, true);
if (xscale != _glfw.x11.contentScaleX || yscale != _glfw.x11.contentScaleY)
{
_GLFWwindow* window = _glfw.windowListHead;
_glfw.x11.contentScaleX = xscale;
_glfw.x11.contentScaleY = yscale;
while (window)
{
_glfwInputWindowContentScale(window, xscale, yscale);
window = window->next;
}
}
}
static void
get_atom_names(Atom *atoms, int count, char **atom_names) {
_glfwGrabErrorHandlerX11();
XGetAtomNames(_glfw.x11.display, atoms, count, atom_names);
_glfwReleaseErrorHandlerX11();
if (_glfw.x11.errorCode != Success) {
for (int i = 0; i < count; i++) {
_glfwGrabErrorHandlerX11();
atom_names[i] = XGetAtomName(_glfw.x11.display, atoms[i]);
_glfwReleaseErrorHandlerX11();
if (_glfw.x11.errorCode != Success) atom_names[i] = NULL;
}
}
}
// Process the specified X event
//
static void processEvent(XEvent *event)
{
static bool keymap_dirty = false;
#define UPDATE_KEYMAP_IF_NEEDED if (keymap_dirty) { keymap_dirty = false; glfw_xkb_compile_keymap(&_glfw.x11.xkb, NULL); }
if (_glfw.x11.randr.available)
{
if (event->type == _glfw.x11.randr.eventBase + RRNotify)
{
XRRUpdateConfiguration(event);
_glfwPollMonitorsX11();
return;
}
}
if (event->type == PropertyNotify &&
event->xproperty.window == _glfw.x11.root &&
event->xproperty.atom == _glfw.x11.RESOURCE_MANAGER)
{
onConfigChange();
return;
}
if (event->type == GenericEvent)
{
if (_glfw.x11.xi.available)
{
_GLFWwindow* window = _glfw.x11.disabledCursorWindow;
if (window &&
window->rawMouseMotion &&
event->xcookie.extension == _glfw.x11.xi.majorOpcode &&
XGetEventData(_glfw.x11.display, &event->xcookie) &&
event->xcookie.evtype == XI_RawMotion)
{
XIRawEvent* re = event->xcookie.data;
if (re->valuators.mask_len)
{
const double* values = re->raw_values;
double xpos = window->virtualCursorPosX;
double ypos = window->virtualCursorPosY;
if (XIMaskIsSet(re->valuators.mask, 0))
{
xpos += *values;
values++;
}
if (XIMaskIsSet(re->valuators.mask, 1))
ypos += *values;
_glfwInputCursorPos(window, xpos, ypos);
}
}
XFreeEventData(_glfw.x11.display, &event->xcookie);
}
return;
}
if (event->type == SelectionClear)
{
handleSelectionClear(event);
return;
}
else if (event->type == SelectionRequest)
{
handleSelectionRequest(event);
return;
}
else if (event->type == _glfw.x11.xkb.eventBase)
{
XkbEvent *kb_event = (XkbEvent*)event;
if (kb_event->any.device != (unsigned int)_glfw.x11.xkb.keyboard_device_id) return;
switch(kb_event->any.xkb_type) {
case XkbNewKeyboardNotify: {
XkbNewKeyboardNotifyEvent *newkb_event = (XkbNewKeyboardNotifyEvent*)kb_event;
if (_glfw.hints.init.debugKeyboard) printf(
"Got XkbNewKeyboardNotify event with changes: key codes: %d geometry: %d device id: %d\n",
!!(newkb_event->changed & XkbNKN_KeycodesMask), !!(newkb_event->changed & XkbNKN_GeometryMask),
!!(newkb_event->changed & XkbNKN_DeviceIDMask));
if (newkb_event->changed & XkbNKN_DeviceIDMask) {
keymap_dirty = true;
if (!glfw_xkb_update_x11_keyboard_id(&_glfw.x11.xkb)) return;
}
if (newkb_event->changed & XkbNKN_KeycodesMask) {
keymap_dirty = true;
}
return;
}
case XkbMapNotify:
{
if (_glfw.hints.init.debugKeyboard) printf("Got XkbMapNotify event, keymaps will be reloaded\n");
keymap_dirty = true;
return;
}
case XkbStateNotify:
{
UPDATE_KEYMAP_IF_NEEDED;
XkbStateNotifyEvent *state_event = (XkbStateNotifyEvent*)kb_event;
glfw_xkb_update_modifiers(
&_glfw.x11.xkb, state_event->base_mods, state_event->latched_mods,
state_event->locked_mods, state_event->base_group, state_event->latched_group, state_event->locked_group
);
return;
}
}
return;
}
_GLFWwindow* window = NULL;
if (XFindContext(_glfw.x11.display,
event->xany.window,
_glfw.x11.context,
(XPointer*) &window) != 0)
{
// This is an event for a window that has already been destroyed
return;
}
switch (event->type)
{
case ReparentNotify:
{
window->x11.parent = event->xreparent.parent;
return;
}
case KeyPress:
{
UPDATE_KEYMAP_IF_NEEDED;
glfw_xkb_handle_key_event(window, &_glfw.x11.xkb, event->xkey.keycode, GLFW_PRESS);
return;
}
case KeyRelease:
{
UPDATE_KEYMAP_IF_NEEDED;
if (!_glfw.x11.xkb.detectable)
{
// HACK: Key repeat events will arrive as KeyRelease/KeyPress
// pairs with similar or identical time stamps
// The key repeat logic in _glfwInputKey expects only key
// presses to repeat, so detect and discard release events
if (XEventsQueued(_glfw.x11.display, QueuedAfterReading))
{
XEvent next;
XPeekEvent(_glfw.x11.display, &next);
if (next.type == KeyPress &&
next.xkey.window == event->xkey.window &&
next.xkey.keycode == event->xkey.keycode)
{
// HACK: The time of repeat events sometimes doesn't
// match that of the press event, so add an
// epsilon
// 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 ((next.xkey.time - event->xkey.time) < 20)
{
// This is very likely a server-generated key repeat
// event, so ignore it
return;
}
}
}
}
glfw_xkb_handle_key_event(window, &_glfw.x11.xkb, event->xkey.keycode, GLFW_RELEASE);
return;
}
case ButtonPress:
{
const int mods = translateState(event->xbutton.state);
if (event->xbutton.button == Button1)
_glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_LEFT, GLFW_PRESS, mods);
else if (event->xbutton.button == Button2)
_glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS, mods);
else if (event->xbutton.button == Button3)
_glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_RIGHT, GLFW_PRESS, mods);
// Modern X provides scroll events as mouse button presses
else if (event->xbutton.button == Button4)
_glfwInputScroll(window, 0.0, 1.0, 0, mods);
else if (event->xbutton.button == Button5)
_glfwInputScroll(window, 0.0, -1.0, 0, mods);
else if (event->xbutton.button == Button6)
_glfwInputScroll(window, 1.0, 0.0, 0, mods);
else if (event->xbutton.button == Button7)
_glfwInputScroll(window, -1.0, 0.0, 0, mods);
else
{
// Additional buttons after 7 are treated as regular buttons
// We subtract 4 to fill the gap left by scroll input above
_glfwInputMouseClick(window,
event->xbutton.button - Button1 - 4,
GLFW_PRESS,
mods);
}
return;
}
case ButtonRelease:
{
const int mods = translateState(event->xbutton.state);
if (event->xbutton.button == Button1)
{
_glfwInputMouseClick(window,
GLFW_MOUSE_BUTTON_LEFT,
GLFW_RELEASE,
mods);
}
else if (event->xbutton.button == Button2)
{
_glfwInputMouseClick(window,
GLFW_MOUSE_BUTTON_MIDDLE,
GLFW_RELEASE,
mods);
}
else if (event->xbutton.button == Button3)
{
_glfwInputMouseClick(window,
GLFW_MOUSE_BUTTON_RIGHT,
GLFW_RELEASE,
mods);
}
else if (event->xbutton.button > Button7)
{
// Additional buttons after 7 are treated as regular buttons
// We subtract 4 to fill the gap left by scroll input above
_glfwInputMouseClick(window,
event->xbutton.button - Button1 - 4,
GLFW_RELEASE,
mods);
}
return;
}
case EnterNotify:
{
// XEnterWindowEvent is XCrossingEvent
const int x = event->xcrossing.x;
const int y = event->xcrossing.y;
// HACK: This is a workaround for WMs (KWM, Fluxbox) that otherwise
// ignore the defined cursor for hidden cursor mode
if (window->cursorMode == GLFW_CURSOR_HIDDEN)
updateCursorImage(window);
_glfwInputCursorEnter(window, true);
_glfwInputCursorPos(window, x, y);
window->x11.lastCursorPosX = x;
window->x11.lastCursorPosY = y;
return;
}
case LeaveNotify:
{
_glfwInputCursorEnter(window, false);
return;
}
case MotionNotify:
{
const int x = event->xmotion.x;
const int y = event->xmotion.y;
if (x != window->x11.warpCursorPosX ||
y != window->x11.warpCursorPosY)
{
// The cursor was moved by something other than GLFW
if (window->cursorMode == GLFW_CURSOR_DISABLED)
{
if (_glfw.x11.disabledCursorWindow != window)
return;
if (window->rawMouseMotion)
return;
const int dx = x - window->x11.lastCursorPosX;
const int dy = y - window->x11.lastCursorPosY;
_glfwInputCursorPos(window,
window->virtualCursorPosX + dx,
window->virtualCursorPosY + dy);
}
else
_glfwInputCursorPos(window, x, y);
}
window->x11.lastCursorPosX = x;
window->x11.lastCursorPosY = y;
return;
}
case ConfigureNotify:
{
if (event->xconfigure.width != window->x11.width ||
event->xconfigure.height != window->x11.height)
{
_glfwInputFramebufferSize(window,
event->xconfigure.width,
event->xconfigure.height);
_glfwInputWindowSize(window,
event->xconfigure.width,
event->xconfigure.height);
window->x11.width = event->xconfigure.width;
window->x11.height = event->xconfigure.height;
}
int xpos = event->xconfigure.x;
int ypos = event->xconfigure.y;
// NOTE: ConfigureNotify events from the server are in local
// coordinates, so if we are reparented we need to translate
// the position into root (screen) coordinates
if (!event->xany.send_event && window->x11.parent != _glfw.x11.root)
{
Window dummy;
_glfwGrabErrorHandlerX11();
XTranslateCoordinates(_glfw.x11.display,
window->x11.parent,
_glfw.x11.root,
xpos, ypos,
&xpos, &ypos,
&dummy);
_glfwReleaseErrorHandlerX11();
if (_glfw.x11.errorCode != Success) {
_glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to translate ConfigureNotiy co-ords for reparented window");
return;
}
}
if (xpos != window->x11.xpos || ypos != window->x11.ypos)
{
_glfwInputWindowPos(window, xpos, ypos);
window->x11.xpos = xpos;
window->x11.ypos = ypos;
}
return;
}
case ClientMessage:
{
// Custom client message, probably from the window manager
if (event->xclient.message_type == None)
return;
if (event->xclient.message_type == _glfw.x11.WM_PROTOCOLS)
{
const Atom protocol = event->xclient.data.l[0];
if (protocol == None)
return;
if (protocol == _glfw.x11.WM_DELETE_WINDOW)
{
// The window manager was asked to close the window, for
// example by the user pressing a 'close' window decoration
// button
_glfwInputWindowCloseRequest(window);
}
else if (protocol == _glfw.x11.NET_WM_PING)
{
// The window manager is pinging the application to ensure
// it's still responding to events
XEvent reply = *event;
reply.xclient.window = _glfw.x11.root;
XSendEvent(_glfw.x11.display, _glfw.x11.root,
False,
SubstructureNotifyMask | SubstructureRedirectMask,
&reply);
}
}
else if (event->xclient.message_type == _glfw.x11.XdndEnter)
{
// A drag operation has entered the window
unsigned long i, count;
Atom* formats = NULL;
const bool list = event->xclient.data.l[1] & 1;
_glfw.x11.xdnd.source = event->xclient.data.l[0];
_glfw.x11.xdnd.version = event->xclient.data.l[1] >> 24;
memset(_glfw.x11.xdnd.format, 0, sizeof(_glfw.x11.xdnd.format));
_glfw.x11.xdnd.format_priority = 0;
if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION)
return;
if (list)
{
count = _glfwGetWindowPropertyX11(_glfw.x11.xdnd.source,
_glfw.x11.XdndTypeList,
XA_ATOM,
(unsigned char**) &formats);
}
else
{
count = 3;
formats = (Atom*) event->xclient.data.l + 2;
}
char **atom_names = calloc(count, sizeof(char*));
if (atom_names) {
get_atom_names(formats, count, atom_names);
for (i = 0; i < count; i++)
{
if (atom_names[i]) {
int prio = _glfwInputDrop(window, atom_names[i], NULL, 0);
if (prio > _glfw.x11.xdnd.format_priority) {
_glfw.x11.xdnd.format_priority = prio;
strncpy(_glfw.x11.xdnd.format, atom_names[i], arraysz(_glfw.x11.xdnd.format) - 1);
}
XFree(atom_names[i]);
}
}
free(atom_names);
}
if (list && formats)
XFree(formats);
}
else if (event->xclient.message_type == _glfw.x11.XdndDrop)
{
// The drag operation has finished by dropping on the window
Time time = CurrentTime;
if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION)
return;
if (_glfw.x11.xdnd.format_priority > 0)
{
if (_glfw.x11.xdnd.version >= 1)
time = event->xclient.data.l[2];
// Request the chosen format from the source window
XConvertSelection(_glfw.x11.display,
_glfw.x11.XdndSelection,
XInternAtom(_glfw.x11.display, _glfw.x11.xdnd.format, 0),
_glfw.x11.XdndSelection,
window->x11.handle,
time);
}
else if (_glfw.x11.xdnd.version >= 2)
{
XEvent reply = { ClientMessage };
reply.xclient.window = _glfw.x11.xdnd.source;
reply.xclient.message_type = _glfw.x11.XdndFinished;
reply.xclient.format = 32;
reply.xclient.data.l[0] = window->x11.handle;
reply.xclient.data.l[1] = 0; // The drag was rejected
reply.xclient.data.l[2] = None;
XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source,
False, NoEventMask, &reply);
XFlush(_glfw.x11.display);
}
}
else if (event->xclient.message_type == _glfw.x11.XdndPosition)
{
// The drag operation has moved over the window
const int xabs = (event->xclient.data.l[2] >> 16) & 0xffff;
const int yabs = (event->xclient.data.l[2]) & 0xffff;
Window dummy;
int xpos = 0, ypos = 0;
if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION)
return;
_glfwGrabErrorHandlerX11();
XTranslateCoordinates(_glfw.x11.display,
_glfw.x11.root,
window->x11.handle,
xabs, yabs,
&xpos, &ypos,
&dummy);
_glfwReleaseErrorHandlerX11();
if (_glfw.x11.errorCode != Success)
_glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to get DND event position");
_glfwInputCursorPos(window, xpos, ypos);
XEvent reply = { ClientMessage };
reply.xclient.window = _glfw.x11.xdnd.source;
reply.xclient.message_type = _glfw.x11.XdndStatus;
reply.xclient.format = 32;
reply.xclient.data.l[0] = window->x11.handle;
reply.xclient.data.l[2] = 0; // Specify an empty rectangle
reply.xclient.data.l[3] = 0;
if (_glfw.x11.xdnd.format_priority > 0)
{
// Reply that we are ready to copy the dragged data
reply.xclient.data.l[1] = 1; // Accept with no rectangle
if (_glfw.x11.xdnd.version >= 2)
reply.xclient.data.l[4] = _glfw.x11.XdndActionCopy;
}
XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source,
False, NoEventMask, &reply);
XFlush(_glfw.x11.display);
}
return;
}
case SelectionNotify:
{
if (event->xselection.property == _glfw.x11.XdndSelection)
{
// The converted data from the drag operation has arrived
char* data;
const unsigned long result =
_glfwGetWindowPropertyX11(event->xselection.requestor,
event->xselection.property,
event->xselection.target,
(unsigned char**) &data);
if (result)
{
_glfwInputDrop(window, _glfw.x11.xdnd.format, data, result);
}
if (data)
XFree(data);
if (_glfw.x11.xdnd.version >= 2)
{
XEvent reply = { ClientMessage };
reply.xclient.window = _glfw.x11.xdnd.source;
reply.xclient.message_type = _glfw.x11.XdndFinished;
reply.xclient.format = 32;
reply.xclient.data.l[0] = window->x11.handle;
reply.xclient.data.l[1] = result;
reply.xclient.data.l[2] = _glfw.x11.XdndActionCopy;
XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source,
False, NoEventMask, &reply);
XFlush(_glfw.x11.display);
}
}
return;
}
case FocusIn:
{
if (event->xfocus.mode == NotifyGrab ||
event->xfocus.mode == NotifyUngrab)
{
// Ignore focus events from popup indicator windows, window menu
// key chords and window dragging
return;
}
if (window->cursorMode == GLFW_CURSOR_DISABLED)
disableCursor(window);
_glfwInputWindowFocus(window, true);
return;
}
case FocusOut:
{
if (event->xfocus.mode == NotifyGrab ||
event->xfocus.mode == NotifyUngrab)
{
// Ignore focus events from popup indicator windows, window menu
// key chords and window dragging
return;
}
if (window->cursorMode == GLFW_CURSOR_DISABLED)
enableCursor(window);
if (window->monitor && window->autoIconify)
_glfwPlatformIconifyWindow(window);
_glfwInputWindowFocus(window, false);
return;
}
case Expose:
{
_glfwInputWindowDamage(window);
return;
}
case PropertyNotify:
{
if (event->xproperty.state != PropertyNewValue)
return;
if (event->xproperty.atom == _glfw.x11.WM_STATE)
{
const int state = getWindowState(window);
if (state != IconicState && state != NormalState)
return;
const bool iconified = (state == IconicState);
if (window->x11.iconified != iconified)
{
if (window->monitor)
{
if (iconified)
releaseMonitor(window);
else
acquireMonitor(window);
}
window->x11.iconified = iconified;
_glfwInputWindowIconify(window, iconified);
}
}
else if (event->xproperty.atom == _glfw.x11.NET_WM_STATE)
{
const bool maximized = _glfwPlatformWindowMaximized(window);
if (window->x11.maximized != maximized)
{
window->x11.maximized = maximized;
_glfwInputWindowMaximize(window, maximized);
}
}
return;
}
case DestroyNotify:
return;
}
#undef UPDATE_KEYMAP_IF_NEEDED
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
// Retrieve a single window property of the specified type
// Inspired by fghGetWindowProperty from freeglut
//
unsigned long _glfwGetWindowPropertyX11(Window window,
Atom property,
Atom type,
unsigned char** value)
{
Atom actualType;
int actualFormat;
unsigned long itemCount, bytesAfter;
XGetWindowProperty(_glfw.x11.display,
window,
property,
0,
LONG_MAX,
False,
type,
&actualType,
&actualFormat,
&itemCount,
&bytesAfter,
value);
return itemCount;
}
bool _glfwIsVisualTransparentX11(Visual* visual)
{
if (!_glfw.x11.xrender.available)
return false;
XRenderPictFormat* pf = XRenderFindVisualFormat(_glfw.x11.display, visual);
return pf && pf->direct.alphaMask;
}
// Push contents of our selection to clipboard manager
//
void _glfwPushSelectionToManagerX11(void)
{
XConvertSelection(_glfw.x11.display,
_glfw.x11.CLIPBOARD_MANAGER,
_glfw.x11.SAVE_TARGETS,
None,
_glfw.x11.helperWindowHandle,
CurrentTime);
for (;;)
{
XEvent event;
while (XCheckIfEvent(_glfw.x11.display, &event, isSelectionEvent, NULL))
{
switch (event.type)
{
case SelectionRequest:
handleSelectionRequest(&event);
break;
case SelectionClear:
handleSelectionClear(&event);
break;
case SelectionNotify:
{
if (event.xselection.target == _glfw.x11.SAVE_TARGETS)
{
// This means one of two things; either the selection
// was not owned, which means there is no clipboard
// manager, or the transfer to the clipboard manager has
// completed
// In either case, it means we are done here
return;
}
break;
}
}
}
waitForX11Event(-1);
}
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
int _glfwPlatformCreateWindow(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
Visual* visual = NULL;
int depth;
if (ctxconfig->client != GLFW_NO_API)
{
if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
{
if (!_glfwInitGLX())
return false;
if (!_glfwChooseVisualGLX(wndconfig, ctxconfig, fbconfig, &visual, &depth))
return false;
}
else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
{
if (!_glfwInitEGL())
return false;
if (!_glfwChooseVisualEGL(wndconfig, ctxconfig, fbconfig, &visual, &depth))
return false;
}
else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
{
if (!_glfwInitOSMesa())
return false;
}
}
if (!visual)
{
visual = DefaultVisual(_glfw.x11.display, _glfw.x11.screen);
depth = DefaultDepth(_glfw.x11.display, _glfw.x11.screen);
}
if (!createNativeWindow(window, wndconfig, visual, depth))
return false;
if (ctxconfig->client != GLFW_NO_API)
{
if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API)
{
if (!_glfwCreateContextGLX(window, ctxconfig, fbconfig))
return false;
}
else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
{
if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
return false;
}
else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
{
if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
return false;
}
}
if (window->monitor)
{
_glfwPlatformShowWindow(window);
updateWindowMode(window);
acquireMonitor(window);
}
XFlush(_glfw.x11.display);
return true;
}
void _glfwPlatformDestroyWindow(_GLFWwindow* window)
{
if (_glfw.x11.disabledCursorWindow == window)
_glfw.x11.disabledCursorWindow = NULL;
if (window->monitor)
releaseMonitor(window);
if (window->context.destroy)
window->context.destroy(window);
if (window->x11.handle)
{
XDeleteContext(_glfw.x11.display, window->x11.handle, _glfw.x11.context);
XUnmapWindow(_glfw.x11.display, window->x11.handle);
XDestroyWindow(_glfw.x11.display, window->x11.handle);
window->x11.handle = (Window) 0;
}
if (window->x11.colormap)
{
XFreeColormap(_glfw.x11.display, window->x11.colormap);
window->x11.colormap = (Colormap) 0;
}
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title)
{
#if defined(X_HAVE_UTF8_STRING)
Xutf8SetWMProperties(_glfw.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(_glfw.x11.display,
window->x11.handle,
title, title,
NULL, 0,
NULL, NULL, NULL);
#endif
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_NAME, _glfw.x11.UTF8_STRING, 8,
PropModeReplace,
(unsigned char*) title, strlen(title));
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_ICON_NAME, _glfw.x11.UTF8_STRING, 8,
PropModeReplace,
(unsigned char*) title, strlen(title));
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetWindowIcon(_GLFWwindow* window,
int count, const GLFWimage* images)
{
if (count)
{
int i, j, longCount = 0;
for (i = 0; i < count; i++)
longCount += 2 + images[i].width * images[i].height;
unsigned long* icon = calloc(longCount, sizeof(unsigned long));
unsigned long* target = icon;
for (i = 0; i < count; i++)
{
*target++ = images[i].width;
*target++ = images[i].height;
for (j = 0; j < images[i].width * images[i].height; j++)
{
unsigned char *p = images->pixels + j * 4;
const unsigned char r = *p++, g = *p++, b = *p++, a = *p++;
*target++ = a << 24 | (r << 16) | (g << 8) | b;
}
}
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_ICON,
XA_CARDINAL, 32,
PropModeReplace,
(unsigned char*) icon,
longCount);
free(icon);
}
else
{
XDeleteProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_ICON);
}
XFlush(_glfw.x11.display);
}
void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos)
{
Window dummy;
int x = 0, y = 0;
_glfwGrabErrorHandlerX11();
XTranslateCoordinates(_glfw.x11.display, window->x11.handle, _glfw.x11.root,
0, 0, &x, &y, &dummy);
_glfwReleaseErrorHandlerX11();
if (_glfw.x11.errorCode != Success)
_glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to get window position");
if (xpos)
*xpos = x;
if (ypos)
*ypos = y;
}
void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos)
{
// HACK: Explicitly setting PPosition to any value causes some WMs, notably
// Compiz and Metacity, to honor the position of unmapped windows
if (!_glfwPlatformWindowVisible(window))
{
long supplied;
XSizeHints* hints = XAllocSizeHints();
if (XGetWMNormalHints(_glfw.x11.display, window->x11.handle, hints, &supplied))
{
hints->flags |= PPosition;
hints->x = hints->y = 0;
XSetWMNormalHints(_glfw.x11.display, window->x11.handle, hints);
}
XFree(hints);
}
XMoveWindow(_glfw.x11.display, window->x11.handle, xpos, ypos);
XFlush(_glfw.x11.display);
}
void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height)
{
XWindowAttributes attribs;
XGetWindowAttributes(_glfw.x11.display, window->x11.handle, &attribs);
if (width)
*width = attribs.width;
if (height)
*height = attribs.height;
}
void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height)
{
if (window->monitor)
{
if (window->monitor->window == window)
acquireMonitor(window);
}
else
{
if (!window->resizable)
updateNormalHints(window, width, height);
XResizeWindow(_glfw.x11.display, window->x11.handle, width, height);
}
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window,
int minwidth UNUSED, int minheight UNUSED,
int maxwidth UNUSED, int maxheight UNUSED)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
updateNormalHints(window, width, height);
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int numer UNUSED, int denom UNUSED)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
updateNormalHints(window, width, height);
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetWindowSizeIncrements(_GLFWwindow* window, int widthincr UNUSED, int heightincr UNUSED)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
updateNormalHints(window, width, height);
XFlush(_glfw.x11.display);
}
void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height)
{
_glfwPlatformGetWindowSize(window, width, height);
}
void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window,
int* left, int* top,
int* right, int* bottom)
{
long* extents = NULL;
if (window->monitor || !window->decorated)
return;
if (_glfw.x11.NET_FRAME_EXTENTS == None)
return;
if (!_glfwPlatformWindowVisible(window) &&
_glfw.x11.NET_REQUEST_FRAME_EXTENTS)
{
XEvent event;
// Ensure _NET_FRAME_EXTENTS is set, allowing glfwGetWindowFrameSize to
// function before the window is mapped
sendEventToWM(window, _glfw.x11.NET_REQUEST_FRAME_EXTENTS,
0, 0, 0, 0, 0);
// HACK: Use a timeout because earlier versions of some window managers
// (at least Unity, Fluxbox and Xfwm) failed to send the reply
// They have been fixed but broken versions are still in the wild
// If you are affected by this and your window manager is NOT
// listed above, PLEASE report it to their and our issue trackers
while (!XCheckIfEvent(_glfw.x11.display,
&event,
isFrameExtentsEvent,
(XPointer) window))
{
if (!waitForX11Event(ms_to_monotonic_t(500ll)))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: The window manager has a broken _NET_REQUEST_FRAME_EXTENTS implementation; please report this issue");
return;
}
}
}
if (_glfwGetWindowPropertyX11(window->x11.handle,
_glfw.x11.NET_FRAME_EXTENTS,
XA_CARDINAL,
(unsigned char**) &extents) == 4)
{
if (left)
*left = extents[0];
if (top)
*top = extents[2];
if (right)
*right = extents[1];
if (bottom)
*bottom = extents[3];
}
if (extents)
XFree(extents);
}
void _glfwPlatformGetWindowContentScale(_GLFWwindow* window UNUSED,
float* xscale, float* yscale)
{
if (xscale)
*xscale = _glfw.x11.contentScaleX;
if (yscale)
*yscale = _glfw.x11.contentScaleY;
}
monotonic_t _glfwPlatformGetDoubleClickInterval(_GLFWwindow* window UNUSED)
{
return ms_to_monotonic_t(500ll);
}
void _glfwPlatformIconifyWindow(_GLFWwindow* window)
{
XIconifyWindow(_glfw.x11.display, window->x11.handle, _glfw.x11.screen);
XFlush(_glfw.x11.display);
}
void _glfwPlatformRestoreWindow(_GLFWwindow* window)
{
if (_glfwPlatformWindowIconified(window))
{
XMapWindow(_glfw.x11.display, window->x11.handle);
waitForVisibilityNotify(window);
}
else if (_glfwPlatformWindowVisible(window))
{
if (_glfw.x11.NET_WM_STATE &&
_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT &&
_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
{
sendEventToWM(window,
_glfw.x11.NET_WM_STATE,
_NET_WM_STATE_REMOVE,
_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT,
_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ,
1, 0);
}
}
XFlush(_glfw.x11.display);
}
void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
{
if (!_glfw.x11.NET_WM_STATE ||
!_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT ||
!_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
{
return;
}
if (_glfwPlatformWindowVisible(window))
{
sendEventToWM(window,
_glfw.x11.NET_WM_STATE,
_NET_WM_STATE_ADD,
_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT,
_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ,
1, 0);
}
else
{
Atom* states = NULL;
unsigned long count =
_glfwGetWindowPropertyX11(window->x11.handle,
_glfw.x11.NET_WM_STATE,
XA_ATOM,
(unsigned char**) &states);
// NOTE: We don't check for failure as this property may not exist yet
// and that's fine (and we'll create it implicitly with append)
Atom missing[2] =
{
_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT,
_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ
};
unsigned long missingCount = 2;
for (unsigned long i = 0; i < count; i++)
{
for (unsigned long j = 0; j < missingCount; j++)
{
if (states[i] == missing[j])
{
missing[j] = missing[missingCount - 1];
missingCount--;
}
}
}
if (states)
XFree(states);
if (!missingCount)
return;
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_STATE, XA_ATOM, 32,
PropModeAppend,
(unsigned char*) missing,
missingCount);
}
XFlush(_glfw.x11.display);
}
void _glfwPlatformShowWindow(_GLFWwindow* window)
{
if (_glfwPlatformWindowVisible(window))
return;
XMapWindow(_glfw.x11.display, window->x11.handle);
waitForVisibilityNotify(window);
}
void _glfwPlatformHideWindow(_GLFWwindow* window)
{
XUnmapWindow(_glfw.x11.display, window->x11.handle);
XFlush(_glfw.x11.display);
}
void _glfwPlatformRequestWindowAttention(_GLFWwindow* window)
{
if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION)
return;
sendEventToWM(window,
_glfw.x11.NET_WM_STATE,
_NET_WM_STATE_ADD,
_glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION,
0, 1, 0);
}
int _glfwPlatformWindowBell(_GLFWwindow* window)
{
return XkbBell(_glfw.x11.display, window->x11.handle, 100, (Atom)0) ? true : false;
}
void _glfwPlatformFocusWindow(_GLFWwindow* window)
{
if (_glfw.x11.NET_ACTIVE_WINDOW)
sendEventToWM(window, _glfw.x11.NET_ACTIVE_WINDOW, 1, 0, 0, 0, 0);
else if (_glfwPlatformWindowVisible(window))
{
XRaiseWindow(_glfw.x11.display, window->x11.handle);
XSetInputFocus(_glfw.x11.display, window->x11.handle,
RevertToParent, CurrentTime);
}
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetWindowMonitor(_GLFWwindow* window,
_GLFWmonitor* monitor,
int xpos, int ypos,
int width, int height,
int refreshRate UNUSED)
{
if (window->monitor == monitor)
{
if (monitor)
{
if (monitor->window == window)
acquireMonitor(window);
}
else
{
if (!window->resizable)
updateNormalHints(window, width, height);
XMoveResizeWindow(_glfw.x11.display, window->x11.handle,
xpos, ypos, width, height);
}
XFlush(_glfw.x11.display);
return;
}
if (window->monitor)
releaseMonitor(window);
_glfwInputWindowMonitor(window, monitor);
updateNormalHints(window, width, height);
if (window->monitor)
{
if (!_glfwPlatformWindowVisible(window))
{
XMapRaised(_glfw.x11.display, window->x11.handle);
waitForVisibilityNotify(window);
}
updateWindowMode(window);
acquireMonitor(window);
}
else
{
updateWindowMode(window);
XMoveResizeWindow(_glfw.x11.display, window->x11.handle,
xpos, ypos, width, height);
}
XFlush(_glfw.x11.display);
}
int _glfwPlatformWindowFocused(_GLFWwindow* window)
{
Window focused;
int state;
XGetInputFocus(_glfw.x11.display, &focused, &state);
return window->x11.handle == focused;
}
int _glfwPlatformWindowOccluded(_GLFWwindow* window UNUSED)
{
return false;
}
int _glfwPlatformWindowIconified(_GLFWwindow* window)
{
return getWindowState(window) == IconicState;
}
int _glfwPlatformWindowVisible(_GLFWwindow* window)
{
XWindowAttributes wa;
XGetWindowAttributes(_glfw.x11.display, window->x11.handle, &wa);
return wa.map_state == IsViewable;
}
int _glfwPlatformWindowMaximized(_GLFWwindow* window)
{
Atom* states;
unsigned long i;
bool maximized = false;
if (!_glfw.x11.NET_WM_STATE ||
!_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT ||
!_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
{
return maximized;
}
const unsigned long count =
_glfwGetWindowPropertyX11(window->x11.handle,
_glfw.x11.NET_WM_STATE,
XA_ATOM,
(unsigned char**) &states);
for (i = 0; i < count; i++)
{
if (states[i] == _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT ||
states[i] == _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ)
{
maximized = true;
break;
}
}
if (states)
XFree(states);
return maximized;
}
int _glfwPlatformWindowHovered(_GLFWwindow* window)
{
Window w = _glfw.x11.root;
while (w)
{
Window root;
int rootX, rootY, childX, childY;
unsigned int mask;
_glfwGrabErrorHandlerX11();
const Bool result = XQueryPointer(_glfw.x11.display, w,
&root, &w, &rootX, &rootY,
&childX, &childY, &mask);
_glfwReleaseErrorHandlerX11();
if (_glfw.x11.errorCode == BadWindow)
w = _glfw.x11.root;
else if (!result)
return false;
else if (w == window->x11.handle)
return true;
}
return false;
}
int _glfwPlatformFramebufferTransparent(_GLFWwindow* window)
{
if (!window->x11.transparent)
return false;
return XGetSelectionOwner(_glfw.x11.display, _glfw.x11.NET_WM_CM_Sx) != None;
}
void _glfwPlatformSetWindowResizable(_GLFWwindow* window, bool enabled UNUSED)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
updateNormalHints(window, width, height);
}
void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, bool enabled)
{
struct
{
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
} hints = {0};
hints.flags = MWM_HINTS_DECORATIONS;
hints.decorations = enabled ? MWM_DECOR_ALL : 0;
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.MOTIF_WM_HINTS,
_glfw.x11.MOTIF_WM_HINTS, 32,
PropModeReplace,
(unsigned char*) &hints,
sizeof(hints) / sizeof(long));
}
void _glfwPlatformSetWindowFloating(_GLFWwindow* window, bool enabled)
{
if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_ABOVE)
return;
if (_glfwPlatformWindowVisible(window))
{
const long action = enabled ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
sendEventToWM(window,
_glfw.x11.NET_WM_STATE,
action,
_glfw.x11.NET_WM_STATE_ABOVE,
0, 1, 0);
}
else
{
Atom* states = NULL;
unsigned long i, count;
count = _glfwGetWindowPropertyX11(window->x11.handle,
_glfw.x11.NET_WM_STATE,
XA_ATOM,
(unsigned char**) &states);
// NOTE: We don't check for failure as this property may not exist yet
// and that's fine (and we'll create it implicitly with append)
if (enabled)
{
for (i = 0; i < count; i++)
{
if (states[i] == _glfw.x11.NET_WM_STATE_ABOVE)
break;
}
if (i < count)
return;
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_STATE, XA_ATOM, 32,
PropModeAppend,
(unsigned char*) &_glfw.x11.NET_WM_STATE_ABOVE,
1);
}
else if (states)
{
for (i = 0; i < count; i++)
{
if (states[i] == _glfw.x11.NET_WM_STATE_ABOVE)
break;
}
if (i == count)
return;
states[i] = states[count - 1];
count--;
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_STATE, XA_ATOM, 32,
PropModeReplace, (unsigned char*) states, count);
}
if (states)
XFree(states);
}
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetWindowMousePassthrough(_GLFWwindow* window, bool enabled)
{
if (!_glfw.x11.xshape.available)
return;
if (enabled)
{
Region region = XCreateRegion();
XShapeCombineRegion(_glfw.x11.display, window->x11.handle,
ShapeInput, 0, 0, region, ShapeSet);
XDestroyRegion(region);
}
else
{
XShapeCombineMask(_glfw.x11.display, window->x11.handle,
ShapeInput, 0, 0, None, ShapeSet);
}
}
float _glfwPlatformGetWindowOpacity(_GLFWwindow* window)
{
float opacity = 1.f;
if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.NET_WM_CM_Sx))
{
CARD32* value = NULL;
if (_glfwGetWindowPropertyX11(window->x11.handle,
_glfw.x11.NET_WM_WINDOW_OPACITY,
XA_CARDINAL,
(unsigned char**) &value))
{
opacity = (float) (*value / (double) 0xffffffffu);
}
if (value)
XFree(value);
}
return opacity;
}
void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity)
{
const CARD32 value = (CARD32) (0xffffffffu * (double) opacity);
XChangeProperty(_glfw.x11.display, window->x11.handle,
_glfw.x11.NET_WM_WINDOW_OPACITY, XA_CARDINAL, 32,
PropModeReplace, (unsigned char*) &value, 1);
}
static inline unsigned
dispatch_x11_queued_events(int num_events) {
unsigned dispatched = num_events > 0 ? num_events : 0;
while (num_events-- > 0) {
XEvent event;
XNextEvent(_glfw.x11.display, &event);
processEvent(&event);
}
return dispatched;
}
static unsigned
_glfwDispatchX11Events(void) {
_GLFWwindow* window;
unsigned dispatched = 0;
#if defined(__linux__)
if (_glfw.joysticksInitialized)
_glfwDetectJoystickConnectionLinux();
#endif
dispatched += dispatch_x11_queued_events(XEventsQueued(_glfw.x11.display, QueuedAfterFlush));
window = _glfw.x11.disabledCursorWindow;
if (window)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
// NOTE: Re-center the cursor only if it has moved since the last call,
// to avoid breaking glfwWaitEvents with MotionNotify
if (window->x11.lastCursorPosX != width / 2 ||
window->x11.lastCursorPosY != height / 2)
{
_glfwPlatformSetCursorPos(window, width / 2, height / 2);
}
}
XFlush(_glfw.x11.display);
// XFlush can cause events to be queued, we don't use QueuedAfterFlush here
// as something might have inserted events into the queue, but we want to guarantee
// a flush.
dispatched += dispatch_x11_queued_events(XEventsQueued(_glfw.x11.display, QueuedAlready));
return dispatched;
}
void _glfwPlatformSetRawMouseMotion(_GLFWwindow *window, bool enabled)
{
if (!_glfw.x11.xi.available)
return;
if (_glfw.x11.disabledCursorWindow != window)
return;
if (enabled)
enableRawMouseMotion(window);
else
disableRawMouseMotion(window);
}
bool _glfwPlatformRawMouseMotionSupported(void)
{
return _glfw.x11.xi.available;
}
void _glfwPlatformPollEvents(void)
{
_glfwDispatchX11Events();
handleEvents(0);
}
void _glfwPlatformWaitEvents(void)
{
monotonic_t timeout = _glfwDispatchX11Events() ? 0 : -1;
handleEvents(timeout);
}
void _glfwPlatformWaitEventsTimeout(monotonic_t timeout)
{
if (_glfwDispatchX11Events()) timeout = 0;
handleEvents(timeout);
}
void _glfwPlatformPostEmptyEvent(void)
{
wakeupEventLoop(&_glfw.x11.eventLoopData);
}
void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos)
{
Window root, child;
int rootX, rootY, childX, childY;
unsigned int mask;
XQueryPointer(_glfw.x11.display, window->x11.handle,
&root, &child,
&rootX, &rootY, &childX, &childY,
&mask);
if (xpos)
*xpos = childX;
if (ypos)
*ypos = childY;
}
void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y)
{
// Store the new position so it can be recognized later
window->x11.warpCursorPosX = (int) x;
window->x11.warpCursorPosY = (int) y;
XWarpPointer(_glfw.x11.display, None, window->x11.handle,
0,0,0,0, (int) x, (int) y);
XFlush(_glfw.x11.display);
}
void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
{
if (mode == GLFW_CURSOR_DISABLED)
{
if (_glfwPlatformWindowFocused(window))
disableCursor(window);
}
else if (_glfw.x11.disabledCursorWindow == window)
enableCursor(window);
else
updateCursorImage(window);
XFlush(_glfw.x11.display);
}
const char* _glfwPlatformGetNativeKeyName(int native_key)
{
return glfw_xkb_keysym_name(native_key);
}
int _glfwPlatformGetNativeKeyForKey(uint32_t key)
{
return glfw_xkb_sym_for_key(key);
}
int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
const GLFWimage* image,
int xhot, int yhot, int count UNUSED)
{
cursor->x11.handle = _glfwCreateCursorX11(image, xhot, yhot);
if (!cursor->x11.handle)
return false;
return true;
}
int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, GLFWCursorShape shape)
{
int native = 0;
#define C(name, val) case name: native = val; break;
switch(shape) {
C(GLFW_ARROW_CURSOR, XC_left_ptr);
C(GLFW_IBEAM_CURSOR, XC_xterm);
C(GLFW_CROSSHAIR_CURSOR, XC_crosshair);
C(GLFW_HAND_CURSOR, XC_hand2);
C(GLFW_HRESIZE_CURSOR, XC_sb_h_double_arrow);
C(GLFW_VRESIZE_CURSOR, XC_sb_v_double_arrow);
C(GLFW_NW_RESIZE_CURSOR, XC_top_left_corner);
C(GLFW_NE_RESIZE_CURSOR, XC_top_right_corner);
C(GLFW_SW_RESIZE_CURSOR, XC_bottom_left_corner);
C(GLFW_SE_RESIZE_CURSOR, XC_bottom_right_corner);
case GLFW_INVALID_CURSOR:
return false;
}
#undef C
cursor->x11.handle = XCreateFontCursor(_glfw.x11.display, native);
if (!cursor->x11.handle)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to create standard cursor");
return false;
}
return true;
}
void _glfwPlatformDestroyCursor(_GLFWcursor* cursor)
{
if (cursor->x11.handle)
XFreeCursor(_glfw.x11.display, cursor->x11.handle);
}
void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor UNUSED)
{
if (window->cursorMode == GLFW_CURSOR_NORMAL)
{
updateCursorImage(window);
XFlush(_glfw.x11.display);
}
}
void _glfwPlatformSetClipboardString(const char* string)
{
char* copy = _glfw_strdup(string);
free(_glfw.x11.clipboardString);
_glfw.x11.clipboardString = copy;
XSetSelectionOwner(_glfw.x11.display,
_glfw.x11.CLIPBOARD,
_glfw.x11.helperWindowHandle,
CurrentTime);
if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.CLIPBOARD) !=
_glfw.x11.helperWindowHandle)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to become owner of clipboard selection");
}
}
const char* _glfwPlatformGetClipboardString(void)
{
return getSelectionString(_glfw.x11.CLIPBOARD);
}
void _glfwPlatformSetPrimarySelectionString(const char* string)
{
free(_glfw.x11.primarySelectionString);
_glfw.x11.primarySelectionString = _glfw_strdup(string);
XSetSelectionOwner(_glfw.x11.display,
_glfw.x11.PRIMARY,
_glfw.x11.helperWindowHandle,
CurrentTime);
if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.PRIMARY) !=
_glfw.x11.helperWindowHandle)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to become owner of primary selection");
}
}
const char* _glfwPlatformGetPrimarySelectionString(void)
{
return getSelectionString(_glfw.x11.PRIMARY);
}
EGLenum _glfwPlatformGetEGLPlatform(EGLint** attribs)
{
if (_glfw.egl.ANGLE_platform_angle)
{
int type = 0;
if (_glfw.egl.ANGLE_platform_angle_opengl)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_OPENGL)
type = EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE;
}
if (_glfw.egl.ANGLE_platform_angle_vulkan)
{
if (_glfw.hints.init.angleType == GLFW_ANGLE_PLATFORM_TYPE_VULKAN)
type = EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE;
}
if (type)
{
*attribs = calloc(5, sizeof(EGLint));
(*attribs)[0] = EGL_PLATFORM_ANGLE_TYPE_ANGLE;
(*attribs)[1] = type;
(*attribs)[2] = EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE;
(*attribs)[3] = EGL_PLATFORM_X11_EXT;
(*attribs)[4] = EGL_NONE;
return EGL_PLATFORM_ANGLE_ANGLE;
}
}
if (_glfw.egl.EXT_platform_base && _glfw.egl.EXT_platform_x11)
return EGL_PLATFORM_X11_EXT;
return 0;
}
EGLNativeDisplayType _glfwPlatformGetEGLNativeDisplay(void)
{
return _glfw.x11.display;
}
EGLNativeWindowType _glfwPlatformGetEGLNativeWindow(_GLFWwindow* window)
{
if (_glfw.egl.platform)
return &window->x11.handle;
else
return (EGLNativeWindowType) window->x11.handle;
}
void _glfwPlatformGetRequiredInstanceExtensions(char** extensions)
{
if (!_glfw.vk.KHR_surface)
return;
if (!_glfw.vk.KHR_xcb_surface)
{
if (!_glfw.vk.KHR_xlib_surface)
return;
}
extensions[0] = "VK_KHR_surface";
// NOTE: VK_KHR_xcb_surface is preferred due to some early ICDs exposing but
// not correctly implementing VK_KHR_xlib_surface
if (_glfw.vk.KHR_xcb_surface)
extensions[1] = "VK_KHR_xcb_surface";
else
extensions[1] = "VK_KHR_xlib_surface";
}
int _glfwPlatformGetPhysicalDevicePresentationSupport(VkInstance instance,
VkPhysicalDevice device,
uint32_t queuefamily)
{
VisualID visualID = XVisualIDFromVisual(DefaultVisual(_glfw.x11.display,
_glfw.x11.screen));
if (_glfw.vk.KHR_xcb_surface)
{
PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR
vkGetPhysicalDeviceXcbPresentationSupportKHR =
(PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)
vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceXcbPresentationSupportKHR");
if (!vkGetPhysicalDeviceXcbPresentationSupportKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"X11: Vulkan instance missing VK_KHR_xcb_surface extension");
return false;
}
xcb_connection_t* connection = XGetXCBConnection(_glfw.x11.display);
if (!connection)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to retrieve XCB connection");
return false;
}
return vkGetPhysicalDeviceXcbPresentationSupportKHR(device,
queuefamily,
connection,
visualID);
}
else
{
PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR
vkGetPhysicalDeviceXlibPresentationSupportKHR =
(PFN_vkGetPhysicalDeviceXlibPresentationSupportKHR)
vkGetInstanceProcAddr(instance, "vkGetPhysicalDeviceXlibPresentationSupportKHR");
if (!vkGetPhysicalDeviceXlibPresentationSupportKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"X11: Vulkan instance missing VK_KHR_xlib_surface extension");
return false;
}
return vkGetPhysicalDeviceXlibPresentationSupportKHR(device,
queuefamily,
_glfw.x11.display,
visualID);
}
}
VkResult _glfwPlatformCreateWindowSurface(VkInstance instance,
_GLFWwindow* window,
const VkAllocationCallbacks* allocator,
VkSurfaceKHR* surface)
{
if (_glfw.vk.KHR_xcb_surface)
{
VkResult err;
VkXcbSurfaceCreateInfoKHR sci;
PFN_vkCreateXcbSurfaceKHR vkCreateXcbSurfaceKHR;
xcb_connection_t* connection = XGetXCBConnection(_glfw.x11.display);
if (!connection)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to retrieve XCB connection");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
vkCreateXcbSurfaceKHR = (PFN_vkCreateXcbSurfaceKHR)
vkGetInstanceProcAddr(instance, "vkCreateXcbSurfaceKHR");
if (!vkCreateXcbSurfaceKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"X11: Vulkan instance missing VK_KHR_xcb_surface extension");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
memset(&sci, 0, sizeof(sci));
sci.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
sci.connection = connection;
sci.window = window->x11.handle;
err = vkCreateXcbSurfaceKHR(instance, &sci, allocator, surface);
if (err)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to create Vulkan XCB surface: %s",
_glfwGetVulkanResultString(err));
}
return err;
}
else
{
VkResult err;
VkXlibSurfaceCreateInfoKHR sci;
PFN_vkCreateXlibSurfaceKHR vkCreateXlibSurfaceKHR;
vkCreateXlibSurfaceKHR = (PFN_vkCreateXlibSurfaceKHR)
vkGetInstanceProcAddr(instance, "vkCreateXlibSurfaceKHR");
if (!vkCreateXlibSurfaceKHR)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"X11: Vulkan instance missing VK_KHR_xlib_surface extension");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
memset(&sci, 0, sizeof(sci));
sci.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
sci.dpy = _glfw.x11.display;
sci.window = window->x11.handle;
err = vkCreateXlibSurfaceKHR(instance, &sci, allocator, surface);
if (err)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to create Vulkan X11 surface: %s",
_glfwGetVulkanResultString(err));
}
return err;
}
}
void
_glfwPlatformUpdateIMEState(_GLFWwindow *w, int which, int a, int b, int c, int d) {
glfw_xkb_update_ime_state(w, &_glfw.x11.xkb, which, a, b, c, d);
}
//////////////////////////////////////////////////////////////////////////
////// GLFW native API //////
//////////////////////////////////////////////////////////////////////////
GLFWAPI Display* glfwGetX11Display(void)
{
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
return _glfw.x11.display;
}
GLFWAPI Window glfwGetX11Window(GLFWwindow* handle)
{
_GLFWwindow* window = (_GLFWwindow*) handle;
_GLFW_REQUIRE_INIT_OR_RETURN(None);
return window->x11.handle;
}
GLFWAPI int glfwGetNativeKeyForName(const char* keyName, bool caseSensitive) {
return glfw_xkb_keysym_from_name(keyName, caseSensitive);
}
GLFWAPI unsigned long long glfwDBusUserNotify(const char *app_name, const char* icon, const char *summary, const char *body, const char *action_name, int32_t timeout, GLFWDBusnotificationcreatedfun callback, void *data) {
return glfw_dbus_send_user_notification(app_name, icon, summary, body, action_name, timeout, callback, data);
}
GLFWAPI void glfwDBusSetUserNotificationHandler(GLFWDBusnotificationactivatedfun handler) {
glfw_dbus_set_user_notification_activated_handler(handler);
}
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