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-rw-r--r--libs/glfw-3.3.8/src/x11_init.c1274
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diff --git a/libs/glfw-3.3.8/src/x11_init.c b/libs/glfw-3.3.8/src/x11_init.c
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+++ b/libs/glfw-3.3.8/src/x11_init.c
@@ -0,0 +1,1274 @@
+//========================================================================
+// GLFW 3.3 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
+//========================================================================
+
+#include "internal.h"
+
+#include <X11/Xresource.h>
+
+#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 scancode, 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 (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 (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;
+}
+
+// Check whether the specified atom is supported
+//
+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 = _glfw_dlopen("libXxf86vm.so");
+#else
+ _glfw.x11.vidmode.handle = _glfw_dlopen("libXxf86vm.so.1");
+#endif
+ if (_glfw.x11.vidmode.handle)
+ {
+ _glfw.x11.vidmode.QueryExtension = (PFN_XF86VidModeQueryExtension)
+ _glfw_dlsym(_glfw.x11.vidmode.handle, "XF86VidModeQueryExtension");
+ _glfw.x11.vidmode.GetGammaRamp = (PFN_XF86VidModeGetGammaRamp)
+ _glfw_dlsym(_glfw.x11.vidmode.handle, "XF86VidModeGetGammaRamp");
+ _glfw.x11.vidmode.SetGammaRamp = (PFN_XF86VidModeSetGammaRamp)
+ _glfw_dlsym(_glfw.x11.vidmode.handle, "XF86VidModeSetGammaRamp");
+ _glfw.x11.vidmode.GetGammaRampSize = (PFN_XF86VidModeGetGammaRampSize)
+ _glfw_dlsym(_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 = _glfw_dlopen("libXi-6.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+ _glfw.x11.xi.handle = _glfw_dlopen("libXi.so");
+#else
+ _glfw.x11.xi.handle = _glfw_dlopen("libXi.so.6");
+#endif
+ if (_glfw.x11.xi.handle)
+ {
+ _glfw.x11.xi.QueryVersion = (PFN_XIQueryVersion)
+ _glfw_dlsym(_glfw.x11.xi.handle, "XIQueryVersion");
+ _glfw.x11.xi.SelectEvents = (PFN_XISelectEvents)
+ _glfw_dlsym(_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 = _glfw_dlopen("libXrandr-2.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+ _glfw.x11.randr.handle = _glfw_dlopen("libXrandr.so");
+#else
+ _glfw.x11.randr.handle = _glfw_dlopen("libXrandr.so.2");
+#endif
+ if (_glfw.x11.randr.handle)
+ {
+ _glfw.x11.randr.AllocGamma = (PFN_XRRAllocGamma)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRAllocGamma");
+ _glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeGamma");
+ _glfw.x11.randr.FreeCrtcInfo = (PFN_XRRFreeCrtcInfo)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeCrtcInfo");
+ _glfw.x11.randr.FreeGamma = (PFN_XRRFreeGamma)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeGamma");
+ _glfw.x11.randr.FreeOutputInfo = (PFN_XRRFreeOutputInfo)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeOutputInfo");
+ _glfw.x11.randr.FreeScreenResources = (PFN_XRRFreeScreenResources)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRFreeScreenResources");
+ _glfw.x11.randr.GetCrtcGamma = (PFN_XRRGetCrtcGamma)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetCrtcGamma");
+ _glfw.x11.randr.GetCrtcGammaSize = (PFN_XRRGetCrtcGammaSize)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetCrtcGammaSize");
+ _glfw.x11.randr.GetCrtcInfo = (PFN_XRRGetCrtcInfo)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetCrtcInfo");
+ _glfw.x11.randr.GetOutputInfo = (PFN_XRRGetOutputInfo)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetOutputInfo");
+ _glfw.x11.randr.GetOutputPrimary = (PFN_XRRGetOutputPrimary)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetOutputPrimary");
+ _glfw.x11.randr.GetScreenResourcesCurrent = (PFN_XRRGetScreenResourcesCurrent)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRGetScreenResourcesCurrent");
+ _glfw.x11.randr.QueryExtension = (PFN_XRRQueryExtension)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRQueryExtension");
+ _glfw.x11.randr.QueryVersion = (PFN_XRRQueryVersion)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRQueryVersion");
+ _glfw.x11.randr.SelectInput = (PFN_XRRSelectInput)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRSelectInput");
+ _glfw.x11.randr.SetCrtcConfig = (PFN_XRRSetCrtcConfig)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRSetCrtcConfig");
+ _glfw.x11.randr.SetCrtcGamma = (PFN_XRRSetCrtcGamma)
+ _glfw_dlsym(_glfw.x11.randr.handle, "XRRSetCrtcGamma");
+ _glfw.x11.randr.UpdateConfiguration = (PFN_XRRUpdateConfiguration)
+ _glfw_dlsym(_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 = _glfw_dlopen("libXcursor-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+ _glfw.x11.xcursor.handle = _glfw_dlopen("libXcursor.so");
+#else
+ _glfw.x11.xcursor.handle = _glfw_dlopen("libXcursor.so.1");
+#endif
+ if (_glfw.x11.xcursor.handle)
+ {
+ _glfw.x11.xcursor.ImageCreate = (PFN_XcursorImageCreate)
+ _glfw_dlsym(_glfw.x11.xcursor.handle, "XcursorImageCreate");
+ _glfw.x11.xcursor.ImageDestroy = (PFN_XcursorImageDestroy)
+ _glfw_dlsym(_glfw.x11.xcursor.handle, "XcursorImageDestroy");
+ _glfw.x11.xcursor.ImageLoadCursor = (PFN_XcursorImageLoadCursor)
+ _glfw_dlsym(_glfw.x11.xcursor.handle, "XcursorImageLoadCursor");
+ }
+
+#if defined(__CYGWIN__)
+ _glfw.x11.xinerama.handle = _glfw_dlopen("libXinerama-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+ _glfw.x11.xinerama.handle = _glfw_dlopen("libXinerama.so");
+#else
+ _glfw.x11.xinerama.handle = _glfw_dlopen("libXinerama.so.1");
+#endif
+ if (_glfw.x11.xinerama.handle)
+ {
+ _glfw.x11.xinerama.IsActive = (PFN_XineramaIsActive)
+ _glfw_dlsym(_glfw.x11.xinerama.handle, "XineramaIsActive");
+ _glfw.x11.xinerama.QueryExtension = (PFN_XineramaQueryExtension)
+ _glfw_dlsym(_glfw.x11.xinerama.handle, "XineramaQueryExtension");
+ _glfw.x11.xinerama.QueryScreens = (PFN_XineramaQueryScreens)
+ _glfw_dlsym(_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 defined(__CYGWIN__)
+ _glfw.x11.x11xcb.handle = _glfw_dlopen("libX11-xcb-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+ _glfw.x11.x11xcb.handle = _glfw_dlopen("libX11-xcb.so");
+#else
+ _glfw.x11.x11xcb.handle = _glfw_dlopen("libX11-xcb.so.1");
+#endif
+ if (_glfw.x11.x11xcb.handle)
+ {
+ _glfw.x11.x11xcb.GetXCBConnection = (PFN_XGetXCBConnection)
+ _glfw_dlsym(_glfw.x11.x11xcb.handle, "XGetXCBConnection");
+ }
+
+#if defined(__CYGWIN__)
+ _glfw.x11.xrender.handle = _glfw_dlopen("libXrender-1.so");
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+ _glfw.x11.xrender.handle = _glfw_dlopen("libXrender.so");
+#else
+ _glfw.x11.xrender.handle = _glfw_dlopen("libXrender.so.1");
+#endif
+ if (_glfw.x11.xrender.handle)
+ {
+ _glfw.x11.xrender.QueryExtension = (PFN_XRenderQueryExtension)
+ _glfw_dlsym(_glfw.x11.xrender.handle, "XRenderQueryExtension");
+ _glfw.x11.xrender.QueryVersion = (PFN_XRenderQueryVersion)
+ _glfw_dlsym(_glfw.x11.xrender.handle, "XRenderQueryVersion");
+ _glfw.x11.xrender.FindVisualFormat = (PFN_XRenderFindVisualFormat)
+ _glfw_dlsym(_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;
+ }
+ }
+ }
+
+ // 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
+ // always the most accurate one
+ char* rms = XResourceManagerString(_glfw.x11.display);
+ if (rms)
+ {
+ XrmDatabase db = XrmGetStringDatabase(rms);
+ if (db)
+ {
+ XrmValue value;
+ char* type = NULL;
+
+ if (XrmGetResource(db, "Xft.dpi", "Xft.Dpi", &type, &value))
+ {
+ if (type && strcmp(type, "String") == 0)
+ xdpi = ydpi = atof(value.addr);
+ }
+
+ XrmDestroyDatabase(db);
+ }
+ }
+
+ *xscale = xdpi / 96.f;
+ *yscale = ydpi / 96.f;
+}
+
+// Create a blank cursor for hidden and disabled cursor modes
+//
+static Cursor createHiddenCursor(void)
+{
+ unsigned char pixels[16 * 16 * 4] = { 0 };
+ GLFWimage image = { 16, 16, pixels };
+ return _glfwCreateCursorX11(&image, 0, 0);
+}
+
+// Create a helper window for IPC
+//
+static Window createHelperWindow(void)
+{
+ XSetWindowAttributes wa;
+ wa.event_mask = PropertyChangeMask;
+
+ return XCreateWindow(_glfw.x11.display, _glfw.x11.root,
+ 0, 0, 1, 1, 0, 0,
+ InputOnly,
+ DefaultVisual(_glfw.x11.display, _glfw.x11.screen),
+ CWEventMask, &wa);
+}
+
+// Create the pipe for empty events without assumuing the OS has pipe2(2)
+//
+static GLFWbool createEmptyEventPipe(void)
+{
+ if (pipe(_glfw.x11.emptyEventPipe) != 0)
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "X11: Failed to create empty event pipe: %s",
+ strerror(errno));
+ return GLFW_FALSE;
+ }
+
+ for (int i = 0; i < 2; i++)
+ {
+ const int sf = fcntl(_glfw.x11.emptyEventPipe[i], F_GETFL, 0);
+ const int df = fcntl(_glfw.x11.emptyEventPipe[i], F_GETFD, 0);
+
+ if (sf == -1 || df == -1 ||
+ fcntl(_glfw.x11.emptyEventPipe[i], F_SETFL, sf | O_NONBLOCK) == -1 ||
+ fcntl(_glfw.x11.emptyEventPipe[i], F_SETFD, df | FD_CLOEXEC) == -1)
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "X11: Failed to set flags for empty event pipe: %s",
+ strerror(errno));
+ return GLFW_FALSE;
+ }
+ }
+
+ return GLFW_TRUE;
+}
+
+// X error handler
+//
+static int errorHandler(Display *display, XErrorEvent* event)
+{
+ if (_glfw.x11.display != display)
+ return 0;
+
+ _glfw.x11.errorCode = event->error_code;
+ return 0;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+////// GLFW internal API //////
+//////////////////////////////////////////////////////////////////////////
+
+// Sets the X error handler callback
+//
+void _glfwGrabErrorHandlerX11(void)
+{
+ assert(_glfw.x11.errorHandler == NULL);
+ _glfw.x11.errorCode = Success;
+ _glfw.x11.errorHandler = XSetErrorHandler(errorHandler);
+}
+
+// Clears the X error handler callback
+//
+void _glfwReleaseErrorHandlerX11(void)
+{
+ // Synchronize to make sure all commands are processed
+ XSync(_glfw.x11.display, False);
+ XSetErrorHandler(_glfw.x11.errorHandler);
+ _glfw.x11.errorHandler = NULL;
+}
+
+// Reports the specified error, appending information about the last X error
+//
+void _glfwInputErrorX11(int error, const char* message)
+{
+ char buffer[_GLFW_MESSAGE_SIZE];
+ XGetErrorText(_glfw.x11.display, _glfw.x11.errorCode,
+ buffer, sizeof(buffer));
+
+ _glfwInputError(error, "%s: %s", message, buffer);
+}
+
+// Creates a native cursor object from the specified image and hotspot
+//
+Cursor _glfwCreateCursorX11(const GLFWimage* image, int xhot, int yhot)
+{
+ int i;
+ Cursor cursor;
+
+ if (!_glfw.x11.xcursor.handle)
+ return None;
+
+ XcursorImage* native = XcursorImageCreate(image->width, image->height);
+ if (native == NULL)
+ return None;
+
+ native->xhot = xhot;
+ native->yhot = yhot;
+
+ unsigned char* source = (unsigned char*) image->pixels;
+ XcursorPixel* target = native->pixels;
+
+ for (i = 0; i < image->width * image->height; i++, target++, source += 4)
+ {
+ unsigned int alpha = source[3];
+
+ *target = (alpha << 24) |
+ ((unsigned char) ((source[0] * alpha) / 255) << 16) |
+ ((unsigned char) ((source[1] * alpha) / 255) << 8) |
+ ((unsigned char) ((source[2] * alpha) / 255) << 0);
+ }
+
+ cursor = XcursorImageLoadCursor(_glfw.x11.display, native);
+ XcursorImageDestroy(native);
+
+ return cursor;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+////// GLFW platform API //////
+//////////////////////////////////////////////////////////////////////////
+
+int _glfwPlatformInit(void)
+{
+ // HACK: If the application has left the locale as "C" then both wide
+ // character text input and explicit UTF-8 input via XIM will break
+ // This sets the CTYPE part of the current locale from the environment
+ // in the hope that it is set to something more sane than "C"
+ if (strcmp(setlocale(LC_CTYPE, NULL), "C") == 0)
+ setlocale(LC_CTYPE, "");
+
+ XInitThreads();
+ XrmInitialize();
+
+ _glfw.x11.display = XOpenDisplay(NULL);
+ if (!_glfw.x11.display)
+ {
+ const char* display = getenv("DISPLAY");
+ if (display)
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "X11: Failed to open display %s", display);
+ }
+ else
+ {
+ _glfwInputError(GLFW_PLATFORM_ERROR,
+ "X11: The DISPLAY environment variable is missing");
+ }
+
+ return GLFW_FALSE;
+ }
+
+ _glfw.x11.screen = DefaultScreen(_glfw.x11.display);
+ _glfw.x11.root = RootWindow(_glfw.x11.display, _glfw.x11.screen);
+ _glfw.x11.context = XUniqueContext();
+
+ getSystemContentScale(&_glfw.x11.contentScaleX, &_glfw.x11.contentScaleY);
+
+ if (!createEmptyEventPipe())
+ return GLFW_FALSE;
+
+ if (!initExtensions())
+ return GLFW_FALSE;
+
+ _glfw.x11.helperWindowHandle = createHelperWindow();
+ _glfw.x11.hiddenCursorHandle = createHiddenCursor();
+
+ if (XSupportsLocale())
+ {
+ XSetLocaleModifiers("");
+
+ _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 defined(__linux__)
+ if (!_glfwInitJoysticksLinux())
+ return GLFW_FALSE;
+#endif
+
+ _glfwInitTimerPOSIX();
+
+ _glfwPollMonitorsX11();
+ return GLFW_TRUE;
+}
+
+void _glfwPlatformTerminate(void)
+{
+ if (_glfw.x11.helperWindowHandle)
+ {
+ if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.CLIPBOARD) ==
+ _glfw.x11.helperWindowHandle)
+ {
+ _glfwPushSelectionToManagerX11();
+ }
+
+ XDestroyWindow(_glfw.x11.display, _glfw.x11.helperWindowHandle);
+ _glfw.x11.helperWindowHandle = None;
+ }
+
+ if (_glfw.x11.hiddenCursorHandle)
+ {
+ XFreeCursor(_glfw.x11.display, _glfw.x11.hiddenCursorHandle);
+ _glfw.x11.hiddenCursorHandle = (Cursor) 0;
+ }
+
+ free(_glfw.x11.primarySelectionString);
+ free(_glfw.x11.clipboardString);
+
+ if (_glfw.x11.im)
+ {
+ XCloseIM(_glfw.x11.im);
+ _glfw.x11.im = NULL;
+ }
+
+ if (_glfw.x11.display)
+ {
+ XCloseDisplay(_glfw.x11.display);
+ _glfw.x11.display = NULL;
+ }
+
+ if (_glfw.x11.x11xcb.handle)
+ {
+ _glfw_dlclose(_glfw.x11.x11xcb.handle);
+ _glfw.x11.x11xcb.handle = NULL;
+ }
+
+ if (_glfw.x11.xcursor.handle)
+ {
+ _glfw_dlclose(_glfw.x11.xcursor.handle);
+ _glfw.x11.xcursor.handle = NULL;
+ }
+
+ if (_glfw.x11.randr.handle)
+ {
+ _glfw_dlclose(_glfw.x11.randr.handle);
+ _glfw.x11.randr.handle = NULL;
+ }
+
+ if (_glfw.x11.xinerama.handle)
+ {
+ _glfw_dlclose(_glfw.x11.xinerama.handle);
+ _glfw.x11.xinerama.handle = NULL;
+ }
+
+ if (_glfw.x11.xrender.handle)
+ {
+ _glfw_dlclose(_glfw.x11.xrender.handle);
+ _glfw.x11.xrender.handle = NULL;
+ }
+
+ if (_glfw.x11.vidmode.handle)
+ {
+ _glfw_dlclose(_glfw.x11.vidmode.handle);
+ _glfw.x11.vidmode.handle = NULL;
+ }
+
+ if (_glfw.x11.xi.handle)
+ {
+ _glfw_dlclose(_glfw.x11.xi.handle);
+ _glfw.x11.xi.handle = NULL;
+ }
+
+ _glfwTerminateOSMesa();
+ // NOTE: These need to be unloaded after XCloseDisplay, as they register
+ // cleanup callbacks that get called by that function
+ _glfwTerminateEGL();
+ _glfwTerminateGLX();
+
+#if defined(__linux__)
+ _glfwTerminateJoysticksLinux();
+#endif
+
+ if (_glfw.x11.emptyEventPipe[0] || _glfw.x11.emptyEventPipe[1])
+ {
+ close(_glfw.x11.emptyEventPipe[0]);
+ close(_glfw.x11.emptyEventPipe[1]);
+ }
+}
+
+const char* _glfwPlatformGetVersionString(void)
+{
+ return _GLFW_VERSION_NUMBER " X11 GLX EGL OSMesa"
+#if defined(_POSIX_TIMERS) && defined(_POSIX_MONOTONIC_CLOCK)
+ " clock_gettime"
+#else
+ " gettimeofday"
+#endif
+#if defined(__linux__)
+ " evdev"
+#endif
+#if defined(_GLFW_BUILD_DLL)
+ " shared"
+#endif
+ ;
+}
+