kmx git

/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.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 "../SDL_internal.h"

#if SDL_VIDEO_DRIVER_WAYLAND || SDL_VIDEO_DRIVER_X11

#include "SDL_keyboard_c.h"
#include "SDL_scancode_tables_c.h"

/* *INDENT-OFF* */ /* clang-format off */
static const struct {
    Uint32       keysym;
    SDL_Scancode scancode;
} KeySymToSDLScancode[] = {
    { 0xFF9C, SDL_SCANCODE_KP_1 },  /* XK_KP_End */
    { 0xFF99, SDL_SCANCODE_KP_2 },  /* XK_KP_Down */
    { 0xFF9B, SDL_SCANCODE_KP_3 },  /* XK_KP_Next */
    { 0xFF96, SDL_SCANCODE_KP_4 },  /* XK_KP_Left */
    { 0xFF9D, SDL_SCANCODE_KP_5 },  /* XK_KP_Begin */
    { 0xFF98, SDL_SCANCODE_KP_6 },  /* XK_KP_Right */
    { 0xFF95, SDL_SCANCODE_KP_7 },  /* XK_KP_Home */
    { 0xFF97, SDL_SCANCODE_KP_8 },  /* XK_KP_Up */
    { 0xFF9A, SDL_SCANCODE_KP_9 },  /* XK_KP_Prior */
    { 0xFF9E, SDL_SCANCODE_KP_0 },  /* XK_KP_Insert */
    { 0xFF9F, SDL_SCANCODE_KP_PERIOD },  /* XK_KP_Delete */
    { 0xFF62, SDL_SCANCODE_EXECUTE },  /* XK_Execute */
    { 0xFFEE, SDL_SCANCODE_APPLICATION },  /* XK_Hyper_R */
    { 0xFE03, SDL_SCANCODE_RALT },  /* XK_ISO_Level3_Shift */
    { 0xFFEB, SDL_SCANCODE_LGUI },  /* XK_Super_L */
    { 0xFFEC, SDL_SCANCODE_RGUI },  /* XK_Super_R */
    { 0xFF7E, SDL_SCANCODE_MODE },  /* XK_Mode_switch */
    { 0x1008FF65, SDL_SCANCODE_MENU },  /* XF86MenuKB */
    { 0x1008FF81, SDL_SCANCODE_F13 },   /* XF86Tools */
    { 0x1008FF45, SDL_SCANCODE_F14 },   /* XF86Launch5 */
    { 0x1008FF46, SDL_SCANCODE_F15 },   /* XF86Launch6 */
    { 0x1008FF47, SDL_SCANCODE_F16 },   /* XF86Launch7 */
    { 0x1008FF48, SDL_SCANCODE_F17 },   /* XF86Launch8 */
    { 0x1008FF49, SDL_SCANCODE_F18 },   /* XF86Launch9 */
};

/* This is a mapping from X keysym to Linux keycode */
static const Uint32 LinuxKeycodeKeysyms[] = {
    /*   0, 0x000 */    0x0, /* NoSymbol */
    /*   1, 0x001 */    0xFF1B, /* Escape */
    /*   2, 0x002 */    0x31, /* 1 */
    /*   3, 0x003 */    0x32, /* 2 */
    /*   4, 0x004 */    0x33, /* 3 */
    /*   5, 0x005 */    0x34, /* 4 */
    /*   6, 0x006 */    0x35, /* 5 */
    /*   7, 0x007 */    0x36, /* 6 */
    /*   8, 0x008 */    0x37, /* 7 */
    /*   9, 0x009 */    0x38, /* 8 */
    /*  10, 0x00a */    0x39, /* 9 */
    /*  11, 0x00b */    0x30, /* 0 */
    /*  12, 0x00c */    0x2D, /* minus */
    /*  13, 0x00d */    0x3D, /* equal */
    /*  14, 0x00e */    0xFF08, /* BackSpace */
    /*  15, 0x00f */    0xFF09, /* Tab */
    /*  16, 0x010 */    0x71, /* q */
    /*  17, 0x011 */    0x77, /* w */
    /*  18, 0x012 */    0x65, /* e */
    /*  19, 0x013 */    0x72, /* r */
    /*  20, 0x014 */    0x74, /* t */
    /*  21, 0x015 */    0x79, /* y */
    /*  22, 0x016 */    0x75, /* u */
    /*  23, 0x017 */    0x69, /* i */
    /*  24, 0x018 */    0x6F, /* o */
    /*  25, 0x019 */    0x70, /* p */
    /*  26, 0x01a */    0x5B, /* bracketleft */
    /*  27, 0x01b */    0x5D, /* bracketright */
    /*  28, 0x01c */    0xFF0D, /* Return */
    /*  29, 0x01d */    0xFFE3, /* Control_L */
    /*  30, 0x01e */    0x61, /* a */
    /*  31, 0x01f */    0x73, /* s */
    /*  32, 0x020 */    0x64, /* d */
    /*  33, 0x021 */    0x66, /* f */
    /*  34, 0x022 */    0x67, /* g */
    /*  35, 0x023 */    0x68, /* h */
    /*  36, 0x024 */    0x6A, /* j */
    /*  37, 0x025 */    0x6B, /* k */
    /*  38, 0x026 */    0x6C, /* l */
    /*  39, 0x027 */    0x3B, /* semicolon */
    /*  40, 0x028 */    0x27, /* apostrophe */
    /*  41, 0x029 */    0x60, /* grave */
    /*  42, 0x02a */    0xFFE1, /* Shift_L */
    /*  43, 0x02b */    0x5C, /* backslash */
    /*  44, 0x02c */    0x7A, /* z */
    /*  45, 0x02d */    0x78, /* x */
    /*  46, 0x02e */    0x63, /* c */
    /*  47, 0x02f */    0x76, /* v */
    /*  48, 0x030 */    0x62, /* b */
    /*  49, 0x031 */    0x6E, /* n */
    /*  50, 0x032 */    0x6D, /* m */
    /*  51, 0x033 */    0x2C, /* comma */
    /*  52, 0x034 */    0x2E, /* period */
    /*  53, 0x035 */    0x2F, /* slash */
    /*  54, 0x036 */    0xFFE2, /* Shift_R */
    /*  55, 0x037 */    0xFFAA, /* KP_Multiply */
    /*  56, 0x038 */    0xFFE9, /* Alt_L */
    /*  57, 0x039 */    0x20, /* space */
    /*  58, 0x03a */    0xFFE5, /* Caps_Lock */
    /*  59, 0x03b */    0xFFBE, /* F1 */
    /*  60, 0x03c */    0xFFBF, /* F2 */
    /*  61, 0x03d */    0xFFC0, /* F3 */
    /*  62, 0x03e */    0xFFC1, /* F4 */
    /*  63, 0x03f */    0xFFC2, /* F5 */
    /*  64, 0x040 */    0xFFC3, /* F6 */
    /*  65, 0x041 */    0xFFC4, /* F7 */
    /*  66, 0x042 */    0xFFC5, /* F8 */
    /*  67, 0x043 */    0xFFC6, /* F9 */
    /*  68, 0x044 */    0xFFC7, /* F10 */
    /*  69, 0x045 */    0xFF7F, /* Num_Lock */
    /*  70, 0x046 */    0xFF14, /* Scroll_Lock */
    /*  71, 0x047 */    0xFFB7, /* KP_7 */
    /*  72, 0x048 */    0XFFB8, /* KP_8 */
    /*  73, 0x049 */    0XFFB9, /* KP_9 */
    /*  74, 0x04a */    0xFFAD, /* KP_Subtract */
    /*  75, 0x04b */    0xFFB4, /* KP_4 */
    /*  76, 0x04c */    0xFFB5, /* KP_5 */
    /*  77, 0x04d */    0xFFB6, /* KP_6 */
    /*  78, 0x04e */    0xFFAB, /* KP_Add */
    /*  79, 0x04f */    0xFFB1, /* KP_1 */
    /*  80, 0x050 */    0xFFB2, /* KP_2 */
    /*  81, 0x051 */    0xFFB3, /* KP_3 */
    /*  82, 0x052 */    0xFFB0, /* KP_0 */
    /*  83, 0x053 */    0xFFAE, /* KP_Decimal */
    /*  84, 0x054 */    0x0, /* NoSymbol */
    /*  85, 0x055 */    0x0, /* NoSymbol */
    /*  86, 0x056 */    0x3C, /* less */
    /*  87, 0x057 */    0xFFC8, /* F11 */
    /*  88, 0x058 */    0xFFC9, /* F12 */
    /*  89, 0x059 */    0x0, /* NoSymbol */
    /*  90, 0x05a */    0xFF26, /* Katakana */
    /*  91, 0x05b */    0xFF25, /* Hiragana */
    /*  92, 0x05c */    0xFF23, /* Henkan_Mode */
    /*  93, 0x05d */    0xFF27, /* Hiragana_Katakana */
    /*  94, 0x05e */    0xFF22, /* Muhenkan */
    /*  95, 0x05f */    0x0, /* NoSymbol */
    /*  96, 0x060 */    0xFF8D, /* KP_Enter */
    /*  97, 0x061 */    0xFFE4, /* Control_R */
    /*  98, 0x062 */    0xFFAF, /* KP_Divide */
    /*  99, 0x063 */    0xFF15, /* Sys_Req */
    /* 100, 0x064 */    0xFFEA, /* Alt_R */
    /* 101, 0x065 */    0xFF0A, /* Linefeed */
    /* 102, 0x066 */    0xFF50, /* Home */
    /* 103, 0x067 */    0xFF52, /* Up */
    /* 104, 0x068 */    0xFF55, /* Prior */
    /* 105, 0x069 */    0xFF51, /* Left */
    /* 106, 0x06a */    0xFF53, /* Right */
    /* 107, 0x06b */    0xFF57, /* End */
    /* 108, 0x06c */    0xFF54, /* Down */
    /* 109, 0x06d */    0xFF56, /* Next */
    /* 110, 0x06e */    0xFF63, /* Insert */
    /* 111, 0x06f */    0xFFFF, /* Delete */
    /* 112, 0x070 */    0x0, /* NoSymbol */
    /* 113, 0x071 */    0x1008FF12, /* XF86AudioMute */
    /* 114, 0x072 */    0x1008FF11, /* XF86AudioLowerVolume */
    /* 115, 0x073 */    0x1008FF13, /* XF86AudioRaiseVolume */
    /* 116, 0x074 */    0x1008FF2A, /* XF86PowerOff */
    /* 117, 0x075 */    0xFFBD, /* KP_Equal */
    /* 118, 0x076 */    0xB1, /* plusminus */
    /* 119, 0x077 */    0xFF13, /* Pause */
    /* 120, 0x078 */    0x1008FF4A, /* XF86LaunchA */
    /* 121, 0x079 */    0xFFAC, /* KP_Separator */
    /* 122, 0x07a */    0xFF31, /* Hangul */
    /* 123, 0x07b */    0xFF34, /* Hangul_Hanja */
    /* 124, 0x07c */    0x0, /* NoSymbol */
    /* 125, 0x07d */    0xFFE7, /* Meta_L */
    /* 126, 0x07e */    0xFFE8, /* Meta_R */
    /* 127, 0x07f */    0xFF67, /* Menu */
    /* 128, 0x080 */    0x00, /* NoSymbol */
    /* 129, 0x081 */    0xFF66, /* Redo */
    /* 130, 0x082 */    0x1005FF70, /* SunProps */
    /* 131, 0x083 */    0xFF65, /* Undo */
    /* 132, 0x084 */    0x1005FF71, /* SunFront */
    /* 133, 0x085 */    0x1008FF57, /* XF86Copy */
    /* 134, 0x086 */    0x1008FF6B, /* XF86Open */
    /* 135, 0x087 */    0x1008FF6D, /* XF86Paste */
    /* 136, 0x088 */    0xFF68, /* Find */
    /* 137, 0x089 */    0x1008FF58, /* XF86Cut */
    /* 138, 0x08a */    0xFF6A, /* Help */
    /* 139, 0x08b */    0xFF67, /* Menu */
    /* 140, 0x08c */    0x1008FF1D, /* XF86Calculator */
    /* 141, 0x08d */    0x0, /* NoSymbol */
    /* 142, 0x08e */    0x1008FF2F, /* XF86Sleep */
    /* 143, 0x08f */    0x1008FF2B, /* XF86WakeUp */
    /* 144, 0x090 */    0x1008FF5D, /* XF86Explorer */
    /* 145, 0x091 */    0x1008FF7B, /* XF86Send */
    /* 146, 0x092 */    0x0, /* NoSymbol */
    /* 147, 0x093 */    0x1008FF8A, /* XF86Xfer */
    /* 148, 0x094 */    0x1008FF41, /* XF86Launch1 */
    /* 149, 0x095 */    0x1008FF42, /* XF86Launch2 */
    /* 150, 0x096 */    0x1008FF2E, /* XF86WWW */
    /* 151, 0x097 */    0x1008FF5A, /* XF86DOS */
    /* 152, 0x098 */    0x1008FF2D, /* XF86ScreenSaver */
    /* 153, 0x099 */    0x1008FF74, /* XF86RotateWindows */
    /* 154, 0x09a */    0x1008FF7F, /* XF86TaskPane */
    /* 155, 0x09b */    0x1008FF19, /* XF86Mail */
    /* 156, 0x09c */    0x1008FF30, /* XF86Favorites */
    /* 157, 0x09d */    0x1008FF33, /* XF86MyComputer */
    /* 158, 0x09e */    0x1008FF26, /* XF86Back */
    /* 159, 0x09f */    0x1008FF27, /* XF86Forward */
    /* 160, 0x0a0 */    0x0, /* NoSymbol */
    /* 161, 0x0a1 */    0x1008FF2C, /* XF86Eject */
    /* 162, 0x0a2 */    0x1008FF2C, /* XF86Eject */
    /* 163, 0x0a3 */    0x1008FF17, /* XF86AudioNext */
    /* 164, 0x0a4 */    0x1008FF14, /* XF86AudioPlay */
    /* 165, 0x0a5 */    0x1008FF16, /* XF86AudioPrev */
    /* 166, 0x0a6 */    0x1008FF15, /* XF86AudioStop */
    /* 167, 0x0a7 */    0x1008FF1C, /* XF86AudioRecord */
    /* 168, 0x0a8 */    0x1008FF3E, /* XF86AudioRewind */
    /* 169, 0x0a9 */    0x1008FF6E, /* XF86Phone */
    /* 170, 0x0aa */    0x0, /* NoSymbol */
    /* 171, 0x0ab */    0x1008FF81, /* XF86Tools */
    /* 172, 0x0ac */    0x1008FF18, /* XF86HomePage */
    /* 173, 0x0ad */    0x1008FF73, /* XF86Reload */
    /* 174, 0x0ae */    0x1008FF56, /* XF86Close */
    /* 175, 0x0af */    0x0, /* NoSymbol */
    /* 176, 0x0b0 */    0x0, /* NoSymbol */
    /* 177, 0x0b1 */    0x1008FF78, /* XF86ScrollUp */
    /* 178, 0x0b2 */    0x1008FF79, /* XF86ScrollDown */
    /* 179, 0x0b3 */    0x0, /* NoSymbol */
    /* 180, 0x0b4 */    0x0, /* NoSymbol */
    /* 181, 0x0b5 */    0x1008FF68, /* XF86New */
    /* 182, 0x0b6 */    0xFF66, /* Redo */
    /* 183, 0x0b7 */    0xFFCA, /* F13 */
    /* 184, 0x0b8 */    0xFFCB, /* F14 */
    /* 185, 0x0b9 */    0xFFCC, /* F15 */
    /* 186, 0x0ba */    0xFFCD, /* F16 */
    /* 187, 0x0bb */    0xFFCE, /* F17 */
    /* 188, 0x0bc */    0xFFCF, /* F18 */
    /* 189, 0x0bd */    0xFFD0, /* F19 */
    /* 190, 0x0be */    0xFFD1, /* F20 */
    /* 191, 0x0bf */    0xFFD2, /* F21 */
    /* 192, 0x0c0 */    0xFFD3, /* F22 */
    /* 193, 0x0c1 */    0xFFD4, /* F23 */
    /* 194, 0x0c2 */    0xFFD5, /* F24 */
    /* 195, 0x0c3 */    0x0, /* NoSymbol */
    /* 196, 0x0c4 */    0x0, /* NoSymbol */
    /* 197, 0x0c5 */    0x0, /* NoSymbol */
    /* 198, 0x0c6 */    0x0, /* NoSymbol */
    /* 199, 0x0c7 */    0x0, /* NoSymbol */
    /* 200, 0x0c8 */    0x1008FF14, /* XF86AudioPlay */
    /* 201, 0x0c9 */    0x1008FF31, /* XF86AudioPause */
    /* 202, 0x0ca */    0x1008FF43, /* XF86Launch3 */
    /* 203, 0x0cb */    0x1008FF44, /* XF86Launch4 */
    /* 204, 0x0cc */    0x1008FF4B, /* XF86LaunchB */
    /* 205, 0x0cd */    0x1008FFA7, /* XF86Suspend */
    /* 206, 0x0ce */    0x1008FF56, /* XF86Close */
    /* 207, 0x0cf */    0x1008FF14, /* XF86AudioPlay */
    /* 208, 0x0d0 */    0x1008FF97, /* XF86AudioForward */
    /* 209, 0x0d1 */    0x0, /* NoSymbol */
    /* 210, 0x0d2 */    0xFF61, /* Print */
    /* 211, 0x0d3 */    0x0, /* NoSymbol */
    /* 212, 0x0d4 */    0x1008FF8F, /* XF86WebCam */
    /* 213, 0x0d5 */    0x1008FFB6, /* XF86AudioPreset */
    /* 214, 0x0d6 */    0x0, /* NoSymbol */
    /* 215, 0x0d7 */    0x1008FF19, /* XF86Mail */
    /* 216, 0x0d8 */    0x1008FF8E, /* XF86Messenger */
    /* 217, 0x0d9 */    0x1008FF1B, /* XF86Search */
    /* 218, 0x0da */    0x1008FF5F, /* XF86Go */
    /* 219, 0x0db */    0x1008FF3C, /* XF86Finance */
    /* 220, 0x0dc */    0x1008FF5E, /* XF86Game */
    /* 221, 0x0dd */    0x1008FF36, /* XF86Shop */
    /* 222, 0x0de */    0x0, /* NoSymbol */
    /* 223, 0x0df */    0xFF69, /* Cancel */
    /* 224, 0x0e0 */    0x1008FF03, /* XF86MonBrightnessDown */
    /* 225, 0x0e1 */    0x1008FF02, /* XF86MonBrightnessUp */
    /* 226, 0x0e2 */    0x1008FF32, /* XF86AudioMedia */
    /* 227, 0x0e3 */    0x1008FF59, /* XF86Display */
    /* 228, 0x0e4 */    0x1008FF04, /* XF86KbdLightOnOff */
    /* 229, 0x0e5 */    0x1008FF06, /* XF86KbdBrightnessDown */
    /* 230, 0x0e6 */    0x1008FF05, /* XF86KbdBrightnessUp */
    /* 231, 0x0e7 */    0x1008FF7B, /* XF86Send */
    /* 232, 0x0e8 */    0x1008FF72, /* XF86Reply */
    /* 233, 0x0e9 */    0x1008FF90, /* XF86MailForward */
    /* 234, 0x0ea */    0x1008FF77, /* XF86Save */
    /* 235, 0x0eb */    0x1008FF5B, /* XF86Documents */
    /* 236, 0x0ec */    0x1008FF93, /* XF86Battery */
    /* 237, 0x0ed */    0x1008FF94, /* XF86Bluetooth */
    /* 238, 0x0ee */    0x1008FF95, /* XF86WLAN */
    /* 239, 0x0ef */    0x1008FF96, /* XF86UWB */
    /* 240, 0x0f0 */    0x0, /* NoSymbol */
    /* 241, 0x0f1 */    0x1008FE22, /* XF86Next_VMode */
    /* 242, 0x0f2 */    0x1008FE23, /* XF86Prev_VMode */
    /* 243, 0x0f3 */    0x1008FF07, /* XF86MonBrightnessCycle */
    /* 244, 0x0f4 */    0x100810F4, /* XF86BrightnessAuto */
    /* 245, 0x0f5 */    0x100810F5, /* XF86DisplayOff */
    /* 246, 0x0f6 */    0x1008FFB4, /* XF86WWAN */
    /* 247, 0x0f7 */    0x1008FFB5, /* XF86RFKill */
};

#if 0 /* Here is a script to generate the ExtendedLinuxKeycodeKeysyms table */
#!/bin/bash

function process_line
{
    sym=$(echo "$1" | awk '{print $3}')
    code=$(echo "$1" | sed 's,.*_EVDEVK(\(0x[0-9A-Fa-f]*\)).*,\1,')
    value=$(grep -E "#define ${sym}\s" -R /usr/include/X11 | awk '{print $3}')
    printf "    { 0x%.8X, 0x%.3x },    /* $sym */\n" $value $code
}

grep -F "/* Use: " /usr/include/xkbcommon/xkbcommon-keysyms.h | grep -F _EVDEVK | while read line; do
    process_line "$line"
done
#endif

static const struct {
    Uint32 keysym;
    int linux_keycode;
} ExtendedLinuxKeycodeKeysyms[] = {
    { 0x1008FF2C, 0x0a2 },    /* XF86XK_Eject */
    { 0x1008FF68, 0x0b5 },    /* XF86XK_New */
    { 0x0000FF66, 0x0b6 },    /* XK_Redo */
    { 0x1008FF4B, 0x0cc },    /* XF86XK_LaunchB */
    { 0x1008FF59, 0x0e3 },    /* XF86XK_Display */
    { 0x1008FF04, 0x0e4 },    /* XF86XK_KbdLightOnOff */
    { 0x1008FF06, 0x0e5 },    /* XF86XK_KbdBrightnessDown */
    { 0x1008FF05, 0x0e6 },    /* XF86XK_KbdBrightnessUp */
    { 0x1008FF7B, 0x0e7 },    /* XF86XK_Send */
    { 0x1008FF72, 0x0e8 },    /* XF86XK_Reply */
    { 0x1008FF90, 0x0e9 },    /* XF86XK_MailForward */
    { 0x1008FF77, 0x0ea },    /* XF86XK_Save */
    { 0x1008FF5B, 0x0eb },    /* XF86XK_Documents */
    { 0x1008FF93, 0x0ec },    /* XF86XK_Battery */
    { 0x1008FF94, 0x0ed },    /* XF86XK_Bluetooth */
    { 0x1008FF95, 0x0ee },    /* XF86XK_WLAN */
    { 0x1008FF96, 0x0ef },    /* XF86XK_UWB */
    { 0x1008FE22, 0x0f1 },    /* XF86XK_Next_VMode */
    { 0x1008FE23, 0x0f2 },    /* XF86XK_Prev_VMode */
    { 0x1008FF07, 0x0f3 },    /* XF86XK_MonBrightnessCycle */
    { 0x1008FFB4, 0x0f6 },    /* XF86XK_WWAN */
    { 0x1008FFB5, 0x0f7 },    /* XF86XK_RFKill */
    { 0x1008FFB2, 0x0f8 },    /* XF86XK_AudioMicMute */
    { 0x1008FF9C, 0x173 },    /* XF86XK_CycleAngle */
    { 0x1008FFB8, 0x174 },    /* XF86XK_FullScreen */
    { 0x1008FF87, 0x189 },    /* XF86XK_Video */
    { 0x1008FF20, 0x18d },    /* XF86XK_Calendar */
    { 0x1008FF99, 0x19a },    /* XF86XK_AudioRandomPlay */
    { 0x1008FF5E, 0x1a1 },    /* XF86XK_Game */
    { 0x1008FF8B, 0x1a2 },    /* XF86XK_ZoomIn */
    { 0x1008FF8C, 0x1a3 },    /* XF86XK_ZoomOut */
    { 0x1008FF89, 0x1a5 },    /* XF86XK_Word */
    { 0x1008FF5C, 0x1a7 },    /* XF86XK_Excel */
    { 0x1008FF69, 0x1ab },    /* XF86XK_News */
    { 0x1008FF8E, 0x1ae },    /* XF86XK_Messenger */
    { 0x1008FF61, 0x1b1 },    /* XF86XK_LogOff */
    { 0x00000024, 0x1b2 },    /* XK_dollar */
    { 0x000020AC, 0x1b3 },    /* XK_EuroSign */
    { 0x1008FF9D, 0x1b4 },    /* XF86XK_FrameBack */
    { 0x1008FF9E, 0x1b5 },    /* XF86XK_FrameForward */
    { 0x0000FFF1, 0x1f1 },    /* XK_braille_dot_1 */
    { 0x0000FFF2, 0x1f2 },    /* XK_braille_dot_2 */
    { 0x0000FFF3, 0x1f3 },    /* XK_braille_dot_3 */
    { 0x0000FFF4, 0x1f4 },    /* XK_braille_dot_4 */
    { 0x0000FFF5, 0x1f5 },    /* XK_braille_dot_5 */
    { 0x0000FFF6, 0x1f6 },    /* XK_braille_dot_6 */
    { 0x0000FFF7, 0x1f7 },    /* XK_braille_dot_7 */
    { 0x0000FFF8, 0x1f8 },    /* XK_braille_dot_8 */
    { 0x0000FFF9, 0x1f9 },    /* XK_braille_dot_9 */
    { 0x0000FFF1, 0x1fa },    /* XK_braille_dot_1 */
    { 0x1008FFA9, 0x212 },    /* XF86XK_TouchpadToggle */
    { 0x1008FFB0, 0x213 },    /* XF86XK_TouchpadOn */
    { 0x1008FFB1, 0x214 },    /* XF86XK_TouchpadOff */
    { 0x1008FFB7, 0x231 },    /* XF86XK_RotationLockToggle */
    { 0x0000FE08, 0x248 },    /* XK_ISO_Next_Group */
};
/* *INDENT-ON* */ /* clang-format on */

SDL_Scancode SDL_GetScancodeFromKeySym(Uint32 keysym, Uint32 keycode)
{
    int i;
    Uint32 linux_keycode = 0;

    /* First check our custom list */
    for (i = 0; i < SDL_arraysize(KeySymToSDLScancode); ++i) {
        if (keysym == KeySymToSDLScancode[i].keysym) {
            return KeySymToSDLScancode[i].scancode;
        }
    }

    if (keysym >= 0x41 && keysym <= 0x5a) {
        /* Normalize alphabetic keysyms to the lowercase form */
        keysym += 0x20;
    } else if (keysym >= 0x10081000 && keysym <= 0x10081FFF) {
        /* The rest of the keysyms map to Linux keycodes, so use that mapping
         * Per xkbcommon-keysyms.h, this is actually a linux keycode.
         */
        linux_keycode = (keysym - 0x10081000);
    }
    if (!linux_keycode) {
        /* See if this keysym is an exact match in our table */
        i = (keycode - 8);
        if (i >= 0 && i < SDL_arraysize(LinuxKeycodeKeysyms) && keysym == LinuxKeycodeKeysyms[i]) {
            linux_keycode = i;
        } else {
            /* Scan the table for this keysym */
            for (i = 0; i < SDL_arraysize(LinuxKeycodeKeysyms); ++i) {
                if (keysym == LinuxKeycodeKeysyms[i]) {
                    linux_keycode = i;
                    break;
                }
            }
        }
    }
    if (!linux_keycode) {
        /* Scan the extended table for this keysym */
        for (i = 0; i < SDL_arraysize(ExtendedLinuxKeycodeKeysyms); ++i) {
            if (keysym == ExtendedLinuxKeycodeKeysyms[i].keysym) {
                linux_keycode = ExtendedLinuxKeycodeKeysyms[i].linux_keycode;
                break;
            }
        }
    }
    return SDL_GetScancodeFromTable(SDL_SCANCODE_TABLE_LINUX, linux_keycode);
}

#endif /* SDL_VIDEO_DRIVER_WAYLAND */

/* vi: set ts=4 sw=4 expandtab: */
kc3-lang/SDL/src/events/SDL_keysym_to_scancode.c

Commit

src/events/SDL_keysym_to_scancode.c
