//========================================================================

// GLFW 3.5 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.

//

//========================================================================

#include "internal.h"

#if defined(_GLFW_X11)

#include <stdlib.h>

#include <string.h>

#include <limits.h>

#include <stdio.h>

#include <locale.h>

#include <unistd.h>

#include <fcntl.h>

#include <errno.h>

#include <assert.h>

// Translate the X11 KeySyms for a key to a GLFW key code

// NOTE: This is only used as a fallback, in case the XKB method fails

// It is layout-dependent and will fail partially on most non-US layouts

//

static int translateKeySyms(const KeySym* keysyms, int width)

{

if (width > 1)

{

switch (keysyms[1])

{

case XK_KP_0: return GLFW_KEY_KP_0;

case XK_KP_1: return GLFW_KEY_KP_1;

case XK_KP_2: return GLFW_KEY_KP_2;

case XK_KP_3: return GLFW_KEY_KP_3;

case XK_KP_4: return GLFW_KEY_KP_4;

case XK_KP_5: return GLFW_KEY_KP_5;

case XK_KP_6: return GLFW_KEY_KP_6;

case XK_KP_7: return GLFW_KEY_KP_7;

case XK_KP_8: return GLFW_KEY_KP_8;

case XK_KP_9: return GLFW_KEY_KP_9;

case XK_KP_Separator:

case XK_KP_Decimal: return GLFW_KEY_KP_DECIMAL;

case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;

case XK_KP_Enter: return GLFW_KEY_KP_ENTER;

default: break;

}

}

switch (keysyms[0])

{

case XK_Escape: return GLFW_KEY_ESCAPE;

case XK_Tab: return GLFW_KEY_TAB;

case XK_Shift_L: return GLFW_KEY_LEFT_SHIFT;

case XK_Shift_R: return GLFW_KEY_RIGHT_SHIFT;

case XK_Control_L: return GLFW_KEY_LEFT_CONTROL;

case XK_Control_R: return GLFW_KEY_RIGHT_CONTROL;

case XK_Meta_L:

case XK_Alt_L: return GLFW_KEY_LEFT_ALT;

case XK_Mode_switch: // Mapped to Alt_R on many keyboards

case XK_ISO_Level3_Shift: // AltGr on at least some machines

case XK_Meta_R:

case XK_Alt_R: return GLFW_KEY_RIGHT_ALT;

case XK_Super_L: return GLFW_KEY_LEFT_SUPER;

case XK_Super_R: return GLFW_KEY_RIGHT_SUPER;

case XK_Menu: return GLFW_KEY_MENU;

case XK_Num_Lock: return GLFW_KEY_NUM_LOCK;

case XK_Caps_Lock: return GLFW_KEY_CAPS_LOCK;

case XK_Print: return GLFW_KEY_PRINT_SCREEN;

case XK_Scroll_Lock: return GLFW_KEY_SCROLL_LOCK;

case XK_Pause: return GLFW_KEY_PAUSE;

case XK_Delete: return GLFW_KEY_DELETE;

case XK_BackSpace: return GLFW_KEY_BACKSPACE;

case XK_Return: return GLFW_KEY_ENTER;

case XK_Home: return GLFW_KEY_HOME;

case XK_End: return GLFW_KEY_END;

case XK_Page_Up: return GLFW_KEY_PAGE_UP;

case XK_Page_Down: return GLFW_KEY_PAGE_DOWN;

case XK_Insert: return GLFW_KEY_INSERT;

case XK_Left: return GLFW_KEY_LEFT;

case XK_Right: return GLFW_KEY_RIGHT;

case XK_Down: return GLFW_KEY_DOWN;

case XK_Up: return GLFW_KEY_UP;

case XK_F1: return GLFW_KEY_F1;

case XK_F2: return GLFW_KEY_F2;

case XK_F3: return GLFW_KEY_F3;

case XK_F4: return GLFW_KEY_F4;

case XK_F5: return GLFW_KEY_F5;

case XK_F6: return GLFW_KEY_F6;

case XK_F7: return GLFW_KEY_F7;

case XK_F8: return GLFW_KEY_F8;

case XK_F9: return GLFW_KEY_F9;

case XK_F10: return GLFW_KEY_F10;

case XK_F11: return GLFW_KEY_F11;

case XK_F12: return GLFW_KEY_F12;

case XK_F13: return GLFW_KEY_F13;

case XK_F14: return GLFW_KEY_F14;

case XK_F15: return GLFW_KEY_F15;

case XK_F16: return GLFW_KEY_F16;

case XK_F17: return GLFW_KEY_F17;

case XK_F18: return GLFW_KEY_F18;

case XK_F19: return GLFW_KEY_F19;

case XK_F20: return GLFW_KEY_F20;

case XK_F21: return GLFW_KEY_F21;

case XK_F22: return GLFW_KEY_F22;

case XK_F23: return GLFW_KEY_F23;

case XK_F24: return GLFW_KEY_F24;

case XK_F25: return GLFW_KEY_F25;

// Numeric keypad

case XK_KP_Divide: return GLFW_KEY_KP_DIVIDE;

case XK_KP_Multiply: return GLFW_KEY_KP_MULTIPLY;

case XK_KP_Subtract: return GLFW_KEY_KP_SUBTRACT;

case XK_KP_Add: return GLFW_KEY_KP_ADD;

// These should have been detected in secondary keysym test above!

case XK_KP_Insert: return GLFW_KEY_KP_0;

case XK_KP_End: return GLFW_KEY_KP_1;

case XK_KP_Down: return GLFW_KEY_KP_2;

case XK_KP_Page_Down: return GLFW_KEY_KP_3;

case XK_KP_Left: return GLFW_KEY_KP_4;

case XK_KP_Right: return GLFW_KEY_KP_6;

case XK_KP_Home: return GLFW_KEY_KP_7;

case XK_KP_Up: return GLFW_KEY_KP_8;

case XK_KP_Page_Up: return GLFW_KEY_KP_9;

case XK_KP_Delete: return GLFW_KEY_KP_DECIMAL;

case XK_KP_Equal: return GLFW_KEY_KP_EQUAL;

case XK_KP_Enter: return GLFW_KEY_KP_ENTER;

// Last resort: Check for printable keys (should not happen if the XKB

// extension is available). This will give a layout dependent mapping

// (which is wrong, and we may miss some keys, especially on non-US

// keyboards), but it's better than nothing...

case XK_a: return GLFW_KEY_A;

case XK_b: return GLFW_KEY_B;

case XK_c: return GLFW_KEY_C;

case XK_d: return GLFW_KEY_D;

case XK_e: return GLFW_KEY_E;

case XK_f: return GLFW_KEY_F;

case XK_g: return GLFW_KEY_G;

case XK_h: return GLFW_KEY_H;

case XK_i: return GLFW_KEY_I;

case XK_j: return GLFW_KEY_J;

case XK_k: return GLFW_KEY_K;

case XK_l: return GLFW_KEY_L;

case XK_m: return GLFW_KEY_M;

case XK_n: return GLFW_KEY_N;

case XK_o: return GLFW_KEY_O;

case XK_p: return GLFW_KEY_P;

case XK_q: return GLFW_KEY_Q;

case XK_r: return GLFW_KEY_R;

case XK_s: return GLFW_KEY_S;

case XK_t: return GLFW_KEY_T;

case XK_u: return GLFW_KEY_U;

case XK_v: return GLFW_KEY_V;

case XK_w: return GLFW_KEY_W;

case XK_x: return GLFW_KEY_X;

case XK_y: return GLFW_KEY_Y;

case XK_z: return GLFW_KEY_Z;

case XK_1: return GLFW_KEY_1;

case XK_2: return GLFW_KEY_2;

case XK_3: return GLFW_KEY_3;

case XK_4: return GLFW_KEY_4;

case XK_5: return GLFW_KEY_5;

case XK_6: return GLFW_KEY_6;

case XK_7: return GLFW_KEY_7;

case XK_8: return GLFW_KEY_8;

case XK_9: return GLFW_KEY_9;

case XK_0: return GLFW_KEY_0;

case XK_space: return GLFW_KEY_SPACE;

case XK_minus: return GLFW_KEY_MINUS;

case XK_equal: return GLFW_KEY_EQUAL;

case XK_bracketleft: return GLFW_KEY_LEFT_BRACKET;

case XK_bracketright: return GLFW_KEY_RIGHT_BRACKET;

case XK_backslash: return GLFW_KEY_BACKSLASH;

case XK_semicolon: return GLFW_KEY_SEMICOLON;

case XK_apostrophe: return GLFW_KEY_APOSTROPHE;

case XK_grave: return GLFW_KEY_GRAVE_ACCENT;

case XK_comma: return GLFW_KEY_COMMA;

case XK_period: return GLFW_KEY_PERIOD;

case XK_slash: return GLFW_KEY_SLASH;

case XK_less: return GLFW_KEY_WORLD_1; // At least in some layouts...

default: break;

}

// No matching translation was found

return GLFW_KEY_UNKNOWN;

}

// Create key code translation tables

//

static void createKeyTables(void)

{

int scancodeMin, scancodeMax;

memset(_glfw.x11.keycodes, -1, sizeof(_glfw.x11.keycodes));

memset(_glfw.x11.scancodes, -1, sizeof(_glfw.x11.scancodes));

if (_glfw.x11.xkb.available)

{

// Use XKB to determine physical key locations independently of the

// current keyboard layout

XkbDescPtr desc = XkbGetMap(_glfw.x11.display, 0, XkbUseCoreKbd);

XkbGetNames(_glfw.x11.display, XkbKeyNamesMask | XkbKeyAliasesMask, desc);

scancodeMin = desc->min_key_code;

scancodeMax = desc->max_key_code;

const struct

{

int key;

char* name;

} keymap[] =

{

{ GLFW_KEY_GRAVE_ACCENT, "TLDE" },

{ GLFW_KEY_1, "AE01" },

{ GLFW_KEY_2, "AE02" },

{ GLFW_KEY_3, "AE03" },

{ GLFW_KEY_4, "AE04" },

{ GLFW_KEY_5, "AE05" },

{ GLFW_KEY_6, "AE06" },

{ GLFW_KEY_7, "AE07" },

{ GLFW_KEY_8, "AE08" },

{ GLFW_KEY_9, "AE09" },

{ GLFW_KEY_0, "AE10" },

{ GLFW_KEY_MINUS, "AE11" },

{ GLFW_KEY_EQUAL, "AE12" },

{ GLFW_KEY_Q, "AD01" },

{ GLFW_KEY_W, "AD02" },

{ GLFW_KEY_E, "AD03" },

{ GLFW_KEY_R, "AD04" },

{ GLFW_KEY_T, "AD05" },

{ GLFW_KEY_Y, "AD06" },

{ GLFW_KEY_U, "AD07" },

{ GLFW_KEY_I, "AD08" },

{ GLFW_KEY_O, "AD09" },

{ GLFW_KEY_P, "AD10" },

{ GLFW_KEY_LEFT_BRACKET, "AD11" },

{ GLFW_KEY_RIGHT_BRACKET, "AD12" },

{ GLFW_KEY_A, "AC01" },

{ GLFW_KEY_S, "AC02" },

{ GLFW_KEY_D, "AC03" },

{ GLFW_KEY_F, "AC04" },

{ GLFW_KEY_G, "AC05" },

{ GLFW_KEY_H, "AC06" },

{ GLFW_KEY_J, "AC07" },

{ GLFW_KEY_K, "AC08" },

{ GLFW_KEY_L, "AC09" },

{ GLFW_KEY_SEMICOLON, "AC10" },

{ GLFW_KEY_APOSTROPHE, "AC11" },

{ GLFW_KEY_Z, "AB01" },

{ GLFW_KEY_X, "AB02" },

{ GLFW_KEY_C, "AB03" },

{ GLFW_KEY_V, "AB04" },

{ GLFW_KEY_B, "AB05" },

{ GLFW_KEY_N, "AB06" },

{ GLFW_KEY_M, "AB07" },

{ GLFW_KEY_COMMA, "AB08" },

{ GLFW_KEY_PERIOD, "AB09" },

{ GLFW_KEY_SLASH, "AB10" },

{ GLFW_KEY_BACKSLASH, "BKSL" },

{ GLFW_KEY_WORLD_1, "LSGT" },

{ GLFW_KEY_SPACE, "SPCE" },

{ GLFW_KEY_ESCAPE, "ESC" },

{ GLFW_KEY_ENTER, "RTRN" },

{ GLFW_KEY_TAB, "TAB" },

{ GLFW_KEY_BACKSPACE, "BKSP" },

{ GLFW_KEY_INSERT, "INS" },

{ GLFW_KEY_DELETE, "DELE" },

{ GLFW_KEY_RIGHT, "RGHT" },

{ GLFW_KEY_LEFT, "LEFT" },

{ GLFW_KEY_DOWN, "DOWN" },

{ GLFW_KEY_UP, "UP" },

{ GLFW_KEY_PAGE_UP, "PGUP" },

{ GLFW_KEY_PAGE_DOWN, "PGDN" },

{ GLFW_KEY_HOME, "HOME" },

{ GLFW_KEY_END, "END" },

{ GLFW_KEY_CAPS_LOCK, "CAPS" },

{ GLFW_KEY_SCROLL_LOCK, "SCLK" },

{ GLFW_KEY_NUM_LOCK, "NMLK" },

{ GLFW_KEY_PRINT_SCREEN, "PRSC" },

{ GLFW_KEY_PAUSE, "PAUS" },

{ GLFW_KEY_F1, "FK01" },

{ GLFW_KEY_F2, "FK02" },

{ GLFW_KEY_F3, "FK03" },

{ GLFW_KEY_F4, "FK04" },

{ GLFW_KEY_F5, "FK05" },

{ GLFW_KEY_F6, "FK06" },

{ GLFW_KEY_F7, "FK07" },

{ GLFW_KEY_F8, "FK08" },

{ GLFW_KEY_F9, "FK09" },

{ GLFW_KEY_F10, "FK10" },

{ GLFW_KEY_F11, "FK11" },

{ GLFW_KEY_F12, "FK12" },

{ GLFW_KEY_F13, "FK13" },

{ GLFW_KEY_F14, "FK14" },

{ GLFW_KEY_F15, "FK15" },

{ GLFW_KEY_F16, "FK16" },

{ GLFW_KEY_F17, "FK17" },

{ GLFW_KEY_F18, "FK18" },

{ GLFW_KEY_F19, "FK19" },

{ GLFW_KEY_F20, "FK20" },

{ GLFW_KEY_F21, "FK21" },

{ GLFW_KEY_F22, "FK22" },

{ GLFW_KEY_F23, "FK23" },

{ GLFW_KEY_F24, "FK24" },

{ GLFW_KEY_F25, "FK25" },

{ GLFW_KEY_KP_0, "KP0" },

{ GLFW_KEY_KP_1, "KP1" },

{ GLFW_KEY_KP_2, "KP2" },

{ GLFW_KEY_KP_3, "KP3" },

{ GLFW_KEY_KP_4, "KP4" },

{ GLFW_KEY_KP_5, "KP5" },

{ GLFW_KEY_KP_6, "KP6" },

{ GLFW_KEY_KP_7, "KP7" },

{ GLFW_KEY_KP_8, "KP8" },

{ GLFW_KEY_KP_9, "KP9" },

{ GLFW_KEY_KP_DECIMAL, "KPDL" },

{ GLFW_KEY_KP_DIVIDE, "KPDV" },

{ GLFW_KEY_KP_MULTIPLY, "KPMU" },

{ GLFW_KEY_KP_SUBTRACT, "KPSU" },

{ GLFW_KEY_KP_ADD, "KPAD" },

{ GLFW_KEY_KP_ENTER, "KPEN" },

{ GLFW_KEY_KP_EQUAL, "KPEQ" },

{ GLFW_KEY_LEFT_SHIFT, "LFSH" },

{ GLFW_KEY_LEFT_CONTROL, "LCTL" },

{ GLFW_KEY_LEFT_ALT, "LALT" },

{ GLFW_KEY_LEFT_SUPER, "LWIN" },

{ GLFW_KEY_RIGHT_SHIFT, "RTSH" },

{ GLFW_KEY_RIGHT_CONTROL, "RCTL" },

{ GLFW_KEY_RIGHT_ALT, "RALT" },

{ GLFW_KEY_RIGHT_ALT, "LVL3" },

{ GLFW_KEY_RIGHT_ALT, "MDSW" },

{ GLFW_KEY_RIGHT_SUPER, "RWIN" },

{ GLFW_KEY_MENU, "MENU" }

};

// Find the X11 key code -> GLFW key code mapping

for (int scancode = scancodeMin; scancode <= scancodeMax; scancode++)

{

int key = GLFW_KEY_UNKNOWN;

// Map the key name to a GLFW key code. Note: We use the US

// keyboard layout. Because function keys aren't mapped correctly

// when using traditional KeySym translations, they are mapped

// here instead.

for (int i = 0; i < sizeof(keymap) / sizeof(keymap[0]); i++)

{

if (strncmp(desc->names->keys[scancode].name,

keymap[i].name,

XkbKeyNameLength) == 0)

{

key = keymap[i].key;

break;

}

}

// Fall back to key aliases in case the key name did not match

for (int i = 0; i < desc->names->num_key_aliases; i++)

{

if (key != GLFW_KEY_UNKNOWN)

break;

if (strncmp(desc->names->key_aliases[i].real,

desc->names->keys[scancode].name,

XkbKeyNameLength) != 0)

{

continue;

}

for (int j = 0; j < sizeof(keymap) / sizeof(keymap[0]); j++)

{

if (strncmp(desc->names->key_aliases[i].alias,

keymap[j].name,

XkbKeyNameLength) == 0)

{

key = keymap[j].key;

break;

}

}

}

_glfw.x11.keycodes[scancode] = key;

}

XkbFreeNames(desc, XkbKeyNamesMask, True);

XkbFreeKeyboard(desc, 0, True);

}

else

XDisplayKeycodes(_glfw.x11.display, &scancodeMin, &scancodeMax);

int width;

KeySym* keysyms = XGetKeyboardMapping(_glfw.x11.display,

scancodeMin,

scancodeMax - scancodeMin + 1,

&width);

for (int scancode = scancodeMin; scancode <= scancodeMax; scancode++)

{

// Translate the un-translated key codes using traditional X11 KeySym

// lookups

if (_glfw.x11.keycodes[scancode] < 0)

{

const size_t base = (scancode - scancodeMin) * width;

_glfw.x11.keycodes[scancode] = translateKeySyms(&keysyms[base], width);

}

// Store the reverse translation for faster key name lookup

if (_glfw.x11.keycodes[scancode] > 0)

_glfw.x11.scancodes[_glfw.x11.keycodes[scancode]] = scancode;

}

XFree(keysyms);

}

// Check whether the IM has a usable style

//

static GLFWbool hasUsableInputMethodStyle(void)

{

GLFWbool found = GLFW_FALSE;

XIMStyles* styles = NULL;

if (XGetIMValues(_glfw.x11.im, XNQueryInputStyle, &styles, NULL) != NULL)

return GLFW_FALSE;

for (unsigned int i = 0; i < styles->count_styles; i++)

{

if (styles->supported_styles[i] == (XIMPreeditNothing | XIMStatusNothing))

{

found = GLFW_TRUE;

break;

}

}

XFree(styles);

return found;

}

static void inputMethodDestroyCallback(XIM im, XPointer clientData, XPointer callData)

{

_glfw.x11.im = NULL;

}

static void inputMethodInstantiateCallback(Display* display,

XPointer clientData,

XPointer callData)

{

if (_glfw.x11.im)

return;

_glfw.x11.im = XOpenIM(_glfw.x11.display, 0, NULL, NULL);

if (_glfw.x11.im)

{

if (!hasUsableInputMethodStyle())

{

XCloseIM(_glfw.x11.im);

_glfw.x11.im = NULL;

}

}

if (_glfw.x11.im)

{

XIMCallback callback;

callback.callback = (XIMProc) inputMethodDestroyCallback;

callback.client_data = NULL;

XSetIMValues(_glfw.x11.im, XNDestroyCallback, &callback, NULL);

for (_GLFWwindow* window = _glfw.windowListHead; window; window = window->next)

_glfwCreateInputContextX11(window);

}

}

// Return the atom ID only if it is listed in the specified array

//

static Atom getAtomIfSupported(Atom* supportedAtoms,

unsigned long atomCount,

const char* atomName)

{

const Atom atom = XInternAtom(_glfw.x11.display, atomName, False);

for (unsigned long i = 0; i < atomCount; i++)

{

if (supportedAtoms[i] == atom)

return atom;

}

return None;

}

// Check whether the running window manager is EWMH-compliant

//

static void detectEWMH(void)

{

// First we read the _NET_SUPPORTING_WM_CHECK property on the root window

Window* windowFromRoot = NULL;

if (!_glfwGetWindowPropertyX11(_glfw.x11.root,

_glfw.x11.NET_SUPPORTING_WM_CHECK,

XA_WINDOW,

(unsigned char**) &windowFromRoot))

{

return;

}

_glfwGrabErrorHandlerX11();

// If it exists, it should be the XID of a top-level window

// Then we look for the same property on that window

Window* windowFromChild = NULL;

if (!_glfwGetWindowPropertyX11(*windowFromRoot,

_glfw.x11.NET_SUPPORTING_WM_CHECK,

XA_WINDOW,

(unsigned char**) &windowFromChild))

{

XFree(windowFromRoot);

return;

}

_glfwReleaseErrorHandlerX11();

// If the property exists, it should contain the XID of the window

if (*windowFromRoot != *windowFromChild)

{

XFree(windowFromRoot);

XFree(windowFromChild);

return;

}

XFree(windowFromRoot);

XFree(windowFromChild);

// We are now fairly sure that an EWMH-compliant WM is currently running

// We can now start querying the WM about what features it supports by

// looking in the _NET_SUPPORTED property on the root window

// It should contain a list of supported EWMH protocol and state atoms

Atom* supportedAtoms = NULL;

const unsigned long atomCount =

_glfwGetWindowPropertyX11(_glfw.x11.root,

_glfw.x11.NET_SUPPORTED,

XA_ATOM,

(unsigned char**) &supportedAtoms);

// See which of the atoms we support that are supported by the WM

_glfw.x11.NET_WM_STATE =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE");

_glfw.x11.NET_WM_STATE_ABOVE =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_ABOVE");

_glfw.x11.NET_WM_STATE_FULLSCREEN =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_FULLSCREEN");

_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_MAXIMIZED_VERT");

_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_MAXIMIZED_HORZ");

_glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_STATE_DEMANDS_ATTENTION");

_glfw.x11.NET_WM_FULLSCREEN_MONITORS =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_FULLSCREEN_MONITORS");

_glfw.x11.NET_WM_WINDOW_TYPE =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_WINDOW_TYPE");

_glfw.x11.NET_WM_WINDOW_TYPE_NORMAL =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WM_WINDOW_TYPE_NORMAL");

_glfw.x11.NET_WORKAREA =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_WORKAREA");

_glfw.x11.NET_CURRENT_DESKTOP =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_CURRENT_DESKTOP");

_glfw.x11.NET_ACTIVE_WINDOW =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_ACTIVE_WINDOW");

_glfw.x11.NET_FRAME_EXTENTS =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_FRAME_EXTENTS");

_glfw.x11.NET_REQUEST_FRAME_EXTENTS =

getAtomIfSupported(supportedAtoms, atomCount, "_NET_REQUEST_FRAME_EXTENTS");

if (supportedAtoms)

XFree(supportedAtoms);

}

// Look for and initialize supported X11 extensions

//

static GLFWbool initExtensions(void)

{

#if defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.vidmode.handle = _glfwPlatformLoadModule("libXxf86vm.so");

#else

_glfw.x11.vidmode.handle = _glfwPlatformLoadModule("libXxf86vm.so.1");

#endif

if (_glfw.x11.vidmode.handle)

{

_glfw.x11.vidmode.QueryExtension = (PFN_XF86VidModeQueryExtension)

_glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeQueryExtension");

_glfw.x11.vidmode.GetGammaRamp = (PFN_XF86VidModeGetGammaRamp)

_glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRamp");

_glfw.x11.vidmode.SetGammaRamp = (PFN_XF86VidModeSetGammaRamp)

_glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeSetGammaRamp");

_glfw.x11.vidmode.GetGammaRampSize = (PFN_XF86VidModeGetGammaRampSize)

_glfwPlatformGetModuleSymbol(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRampSize");

_glfw.x11.vidmode.available =

XF86VidModeQueryExtension(_glfw.x11.display,

&_glfw.x11.vidmode.eventBase,

&_glfw.x11.vidmode.errorBase);

}

#if defined(__CYGWIN__)

_glfw.x11.xi.handle = _glfwPlatformLoadModule("libXi-6.so");

#elif defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.xi.handle = _glfwPlatformLoadModule("libXi.so");

#else

_glfw.x11.xi.handle = _glfwPlatformLoadModule("libXi.so.6");

#endif

if (_glfw.x11.xi.handle)

{

_glfw.x11.xi.QueryVersion = (PFN_XIQueryVersion)

_glfwPlatformGetModuleSymbol(_glfw.x11.xi.handle, "XIQueryVersion");

_glfw.x11.xi.SelectEvents = (PFN_XISelectEvents)

_glfwPlatformGetModuleSymbol(_glfw.x11.xi.handle, "XISelectEvents");

if (XQueryExtension(_glfw.x11.display,

"XInputExtension",

&_glfw.x11.xi.majorOpcode,

&_glfw.x11.xi.eventBase,

&_glfw.x11.xi.errorBase))

{

_glfw.x11.xi.major = 2;

_glfw.x11.xi.minor = 0;

if (XIQueryVersion(_glfw.x11.display,

&_glfw.x11.xi.major,

&_glfw.x11.xi.minor) == Success)

{

_glfw.x11.xi.available = GLFW_TRUE;

}

}

}

#if defined(__CYGWIN__)

_glfw.x11.randr.handle = _glfwPlatformLoadModule("libXrandr-2.so");

#elif defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.randr.handle = _glfwPlatformLoadModule("libXrandr.so");

#else

_glfw.x11.randr.handle = _glfwPlatformLoadModule("libXrandr.so.2");

#endif

if (_glfw.x11.randr.handle)

{

_glfw.x11.randr.AllocGamma = (PFN_XRRAllocGamma)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRAllocGamma");

_glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeGamma");

_glfw.x11.randr.FreeCrtcInfo = (PFN_XRRFreeCrtcInfo)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeCrtcInfo");

_glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeGamma");

_glfw.x11.randr.FreeOutputInfo = (PFN_XRRFreeOutputInfo)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeOutputInfo");

_glfw.x11.randr.FreeScreenResources = (PFN_XRRFreeScreenResources)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRFreeScreenResources");

_glfw.x11.randr.GetCrtcGamma = (PFN_XRRGetCrtcGamma)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetCrtcGamma");

_glfw.x11.randr.GetCrtcGammaSize = (PFN_XRRGetCrtcGammaSize)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetCrtcGammaSize");

_glfw.x11.randr.GetCrtcInfo = (PFN_XRRGetCrtcInfo)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetCrtcInfo");

_glfw.x11.randr.GetOutputInfo = (PFN_XRRGetOutputInfo)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetOutputInfo");

_glfw.x11.randr.GetOutputPrimary = (PFN_XRRGetOutputPrimary)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetOutputPrimary");

_glfw.x11.randr.GetScreenResourcesCurrent = (PFN_XRRGetScreenResourcesCurrent)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRGetScreenResourcesCurrent");

_glfw.x11.randr.QueryExtension = (PFN_XRRQueryExtension)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRQueryExtension");

_glfw.x11.randr.QueryVersion = (PFN_XRRQueryVersion)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRQueryVersion");

_glfw.x11.randr.SelectInput = (PFN_XRRSelectInput)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRSelectInput");

_glfw.x11.randr.SetCrtcConfig = (PFN_XRRSetCrtcConfig)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRSetCrtcConfig");

_glfw.x11.randr.SetCrtcGamma = (PFN_XRRSetCrtcGamma)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRSetCrtcGamma");

_glfw.x11.randr.UpdateConfiguration = (PFN_XRRUpdateConfiguration)

_glfwPlatformGetModuleSymbol(_glfw.x11.randr.handle, "XRRUpdateConfiguration");

if (XRRQueryExtension(_glfw.x11.display,

&_glfw.x11.randr.eventBase,

&_glfw.x11.randr.errorBase))

{

if (XRRQueryVersion(_glfw.x11.display,

&_glfw.x11.randr.major,

&_glfw.x11.randr.minor))

{

// The GLFW RandR path requires at least version 1.3

if (_glfw.x11.randr.major > 1 || _glfw.x11.randr.minor >= 3)

_glfw.x11.randr.available = GLFW_TRUE;

}

else

{

_glfwInputError(GLFW_PLATFORM_ERROR,

"X11: Failed to query RandR version");

}

}

}

if (_glfw.x11.randr.available)

{

XRRScreenResources* sr = XRRGetScreenResourcesCurrent(_glfw.x11.display,

_glfw.x11.root);

if (!sr->ncrtc || !XRRGetCrtcGammaSize(_glfw.x11.display, sr->crtcs[0]))

{

// This is likely an older Nvidia driver with broken gamma support

// Flag it as useless and fall back to xf86vm gamma, if available

_glfw.x11.randr.gammaBroken = GLFW_TRUE;

}

if (!sr->ncrtc)

{

// A system without CRTCs is likely a system with broken RandR

// Disable the RandR monitor path and fall back to core functions

_glfw.x11.randr.monitorBroken = GLFW_TRUE;

}

XRRFreeScreenResources(sr);

}

if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)

{

XRRSelectInput(_glfw.x11.display, _glfw.x11.root,

RROutputChangeNotifyMask);

}

#if defined(__CYGWIN__)

_glfw.x11.xcursor.handle = _glfwPlatformLoadModule("libXcursor-1.so");

#elif defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.xcursor.handle = _glfwPlatformLoadModule("libXcursor.so");

#else

_glfw.x11.xcursor.handle = _glfwPlatformLoadModule("libXcursor.so.1");

#endif

if (_glfw.x11.xcursor.handle)

{

_glfw.x11.xcursor.ImageCreate = (PFN_XcursorImageCreate)

_glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorImageCreate");

_glfw.x11.xcursor.ImageDestroy = (PFN_XcursorImageDestroy)

_glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorImageDestroy");

_glfw.x11.xcursor.ImageLoadCursor = (PFN_XcursorImageLoadCursor)

_glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorImageLoadCursor");

_glfw.x11.xcursor.GetTheme = (PFN_XcursorGetTheme)

_glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorGetTheme");

_glfw.x11.xcursor.GetDefaultSize = (PFN_XcursorGetDefaultSize)

_glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorGetDefaultSize");

_glfw.x11.xcursor.LibraryLoadImage = (PFN_XcursorLibraryLoadImage)

_glfwPlatformGetModuleSymbol(_glfw.x11.xcursor.handle, "XcursorLibraryLoadImage");

}

#if defined(__CYGWIN__)

_glfw.x11.xinerama.handle = _glfwPlatformLoadModule("libXinerama-1.so");

#elif defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.xinerama.handle = _glfwPlatformLoadModule("libXinerama.so");

#else

_glfw.x11.xinerama.handle = _glfwPlatformLoadModule("libXinerama.so.1");

#endif

if (_glfw.x11.xinerama.handle)

{

_glfw.x11.xinerama.IsActive = (PFN_XineramaIsActive)

_glfwPlatformGetModuleSymbol(_glfw.x11.xinerama.handle, "XineramaIsActive");

_glfw.x11.xinerama.QueryExtension = (PFN_XineramaQueryExtension)

_glfwPlatformGetModuleSymbol(_glfw.x11.xinerama.handle, "XineramaQueryExtension");

_glfw.x11.xinerama.QueryScreens = (PFN_XineramaQueryScreens)

_glfwPlatformGetModuleSymbol(_glfw.x11.xinerama.handle, "XineramaQueryScreens");

if (XineramaQueryExtension(_glfw.x11.display,

&_glfw.x11.xinerama.major,

&_glfw.x11.xinerama.minor))

{

if (XineramaIsActive(_glfw.x11.display))

_glfw.x11.xinerama.available = GLFW_TRUE;

}

}

_glfw.x11.xkb.major = 1;

_glfw.x11.xkb.minor = 0;

_glfw.x11.xkb.available =

XkbQueryExtension(_glfw.x11.display,

&_glfw.x11.xkb.majorOpcode,

&_glfw.x11.xkb.eventBase,

&_glfw.x11.xkb.errorBase,

&_glfw.x11.xkb.major,

&_glfw.x11.xkb.minor);

if (_glfw.x11.xkb.available)

{

Bool supported;

if (XkbSetDetectableAutoRepeat(_glfw.x11.display, True, &supported))

{

if (supported)

_glfw.x11.xkb.detectable = GLFW_TRUE;

}

XkbStateRec state;

if (XkbGetState(_glfw.x11.display, XkbUseCoreKbd, &state) == Success)

_glfw.x11.xkb.group = (unsigned int)state.group;

XkbSelectEventDetails(_glfw.x11.display, XkbUseCoreKbd, XkbStateNotify,

XkbGroupStateMask, XkbGroupStateMask);

}

if (_glfw.hints.init.x11.xcbVulkanSurface)

{

#if defined(__CYGWIN__)

_glfw.x11.x11xcb.handle = _glfwPlatformLoadModule("libX11-xcb-1.so");

#elif defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.x11xcb.handle = _glfwPlatformLoadModule("libX11-xcb.so");

#else

_glfw.x11.x11xcb.handle = _glfwPlatformLoadModule("libX11-xcb.so.1");

#endif

}

if (_glfw.x11.x11xcb.handle)

{

_glfw.x11.x11xcb.GetXCBConnection = (PFN_XGetXCBConnection)

_glfwPlatformGetModuleSymbol(_glfw.x11.x11xcb.handle, "XGetXCBConnection");

}

#if defined(__CYGWIN__)

_glfw.x11.xrender.handle = _glfwPlatformLoadModule("libXrender-1.so");

#elif defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.xrender.handle = _glfwPlatformLoadModule("libXrender.so");

#else

_glfw.x11.xrender.handle = _glfwPlatformLoadModule("libXrender.so.1");

#endif

if (_glfw.x11.xrender.handle)

{

_glfw.x11.xrender.QueryExtension = (PFN_XRenderQueryExtension)

_glfwPlatformGetModuleSymbol(_glfw.x11.xrender.handle, "XRenderQueryExtension");

_glfw.x11.xrender.QueryVersion = (PFN_XRenderQueryVersion)

_glfwPlatformGetModuleSymbol(_glfw.x11.xrender.handle, "XRenderQueryVersion");

_glfw.x11.xrender.FindVisualFormat = (PFN_XRenderFindVisualFormat)

_glfwPlatformGetModuleSymbol(_glfw.x11.xrender.handle, "XRenderFindVisualFormat");

if (XRenderQueryExtension(_glfw.x11.display,

&_glfw.x11.xrender.errorBase,

&_glfw.x11.xrender.eventBase))

{

if (XRenderQueryVersion(_glfw.x11.display,

&_glfw.x11.xrender.major,

&_glfw.x11.xrender.minor))

{

_glfw.x11.xrender.available = GLFW_TRUE;

}

}

}

#if defined(__CYGWIN__)

_glfw.x11.xshape.handle = _glfwPlatformLoadModule("libXext-6.so");

#elif defined(__OpenBSD__) || defined(__NetBSD__)

_glfw.x11.xshape.handle = _glfwPlatformLoadModule("libXext.so");

#else

_glfw.x11.xshape.handle = _glfwPlatformLoadModule("libXext.so.6");

#endif

if (_glfw.x11.xshape.handle)

{

_glfw.x11.xshape.QueryExtension = (PFN_XShapeQueryExtension)

_glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeQueryExtension");

_glfw.x11.xshape.ShapeCombineRegion = (PFN_XShapeCombineRegion)

_glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeCombineRegion");

_glfw.x11.xshape.QueryVersion = (PFN_XShapeQueryVersion)

_glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeQueryVersion");

_glfw.x11.xshape.ShapeCombineMask = (PFN_XShapeCombineMask)

_glfwPlatformGetModuleSymbol(_glfw.x11.xshape.handle, "XShapeCombineMask");

if (XShapeQueryExtension(_glfw.x11.display,

&_glfw.x11.xshape.errorBase,

&_glfw.x11.xshape.eventBase))

{

if (XShapeQueryVersion(_glfw.x11.display,

&_glfw.x11.xshape.major,

&_glfw.x11.xshape.minor))

{

_glfw.x11.xshape.available = GLFW_TRUE;

}

}

}

// Update the key code LUT

// FIXME: We should listen to XkbMapNotify events to track changes to

// the keyboard mapping.

createKeyTables();

// String format atoms

_glfw.x11.NULL_ = XInternAtom(_glfw.x11.display, "NULL", False);

_glfw.x11.UTF8_STRING = XInternAtom(_glfw.x11.display, "UTF8_STRING", False);

_glfw.x11.ATOM_PAIR = XInternAtom(_glfw.x11.display, "ATOM_PAIR", False);

// Custom selection property atom

_glfw.x11.GLFW_SELECTION =

XInternAtom(_glfw.x11.display, "GLFW_SELECTION", False);

// ICCCM standard clipboard atoms

_glfw.x11.TARGETS = XInternAtom(_glfw.x11.display, "TARGETS", False);

_glfw.x11.MULTIPLE = XInternAtom(_glfw.x11.display, "MULTIPLE", False);

_glfw.x11.PRIMARY = XInternAtom(_glfw.x11.display, "PRIMARY", False);

_glfw.x11.INCR = XInternAtom(_glfw.x11.display, "INCR", False);

_glfw.x11.CLIPBOARD = XInternAtom(_glfw.x11.display, "CLIPBOARD", False);

// Clipboard manager atoms

_glfw.x11.CLIPBOARD_MANAGER =

XInternAtom(_glfw.x11.display, "CLIPBOARD_MANAGER", False);

_glfw.x11.SAVE_TARGETS =

XInternAtom(_glfw.x11.display, "SAVE_TARGETS", False);

// Xdnd (drag and drop) atoms

_glfw.x11.XdndAware = XInternAtom(_glfw.x11.display, "XdndAware", False);

_glfw.x11.XdndEnter = XInternAtom(_glfw.x11.display, "XdndEnter", False);

_glfw.x11.XdndPosition = XInternAtom(_glfw.x11.display, "XdndPosition", False);

_glfw.x11.XdndStatus = XInternAtom(_glfw.x11.display, "XdndStatus", False);

_glfw.x11.XdndActionCopy = XInternAtom(_glfw.x11.display, "XdndActionCopy", False);

_glfw.x11.XdndDrop = XInternAtom(_glfw.x11.display, "XdndDrop", False);

_glfw.x11.XdndFinished = XInternAtom(_glfw.x11.display, "XdndFinished", False);

_glfw.x11.XdndSelection = XInternAtom(_glfw.x11.display, "XdndSelection", False);

_glfw.x11.XdndTypeList = XInternAtom(_glfw.x11.display, "XdndTypeList", False);

_glfw.x11.text_uri_list = XInternAtom(_glfw.x11.display, "text/uri-list", False);

// ICCCM, EWMH and Motif window property atoms

// These can be set safely even without WM support

// The EWMH atoms that require WM support are handled in detectEWMH

_glfw.x11.WM_PROTOCOLS =

XInternAtom(_glfw.x11.display, "WM_PROTOCOLS", False);

_glfw.x11.WM_STATE =

XInternAtom(_glfw.x11.display, "WM_STATE", False);

_glfw.x11.WM_DELETE_WINDOW =

XInternAtom(_glfw.x11.display, "WM_DELETE_WINDOW", False);

_glfw.x11.NET_SUPPORTED =

XInternAtom(_glfw.x11.display, "_NET_SUPPORTED", False);

_glfw.x11.NET_SUPPORTING_WM_CHECK =

XInternAtom(_glfw.x11.display, "_NET_SUPPORTING_WM_CHECK", False);

_glfw.x11.NET_WM_ICON =

XInternAtom(_glfw.x11.display, "_NET_WM_ICON", False);

_glfw.x11.NET_WM_PING =

XInternAtom(_glfw.x11.display, "_NET_WM_PING", False);

_glfw.x11.NET_WM_PID =

XInternAtom(_glfw.x11.display, "_NET_WM_PID", False);

_glfw.x11.NET_WM_NAME =

XInternAtom(_glfw.x11.display, "_NET_WM_NAME", False);

_glfw.x11.NET_WM_ICON_NAME =

XInternAtom(_glfw.x11.display, "_NET_WM_ICON_NAME", False);

_glfw.x11.NET_WM_BYPASS_COMPOSITOR =

XInternAtom(_glfw.x11.display, "_NET_WM_BYPASS_COMPOSITOR", False);

_glfw.x11.NET_WM_WINDOW_OPACITY =

XInternAtom(_glfw.x11.display, "_NET_WM_WINDOW_OPACITY", False);

_glfw.x11.MOTIF_WM_HINTS =

XInternAtom(_glfw.x11.display, "_MOTIF_WM_HINTS", False);

// The compositing manager selection name contains the screen number

{

char name[32];

snprintf(name, sizeof(name), "_NET_WM_CM_S%u", _glfw.x11.screen);

_glfw.x11.NET_WM_CM_Sx = XInternAtom(_glfw.x11.display, name, False);

}

// Detect whether an EWMH-conformant window manager is running

detectEWMH();

return GLFW_TRUE;

}

// Retrieve system content scale via folklore heuristics

//

static void getSystemContentScale(float* xscale, float* yscale)

{

// Start by assuming the default X11 DPI

// NOTE: Some desktop environments (KDE) may remove the Xft.dpi field when it

// would be set to 96, so assume that is the case if we cannot find it

float xdpi = 96.f, ydpi = 96.f;

// NOTE: Basing the scale on Xft.dpi where available should provide the most

// consistent user experience (matches Qt, Gtk, etc), although not