linux: reorganise keyboard stuff
insofaras
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d5f98bcd31
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68f76ec02e
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@ -1,97 +0,0 @@
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/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 14.11.2015
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*
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* Linux-US Keyboard layer for 4coder
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*
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*/
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// TOP
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// TODO(allen): Let's go ahead and eliminate this file
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// like I did with the win32 keyboard files.
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// NOTE(allen): Old contents of 4ed_keyboard.cpp
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globalvar u8 keycode_lookup_table[255];
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inline u8
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keycode_lookup(u8 system_code){
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return keycode_lookup_table[system_code];
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}
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internal void
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keycode_init(Display* dpy){
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// NOTE(inso): This looks a bit dumb, but it's the best way I can think of to do it, since:
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// KeySyms are the type representing "virtual" keys, like XK_BackSpace, but they are 32-bit ints.
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// KeyCodes are guaranteed to fit in 1 byte (and therefore the keycode_lookup_table) but
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// have dynamic numbers assigned by the XServer.
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// There is XKeysymToKeycode, but it only returns 1 KeyCode for a KeySym. I have my capslock
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// rebound to esc, so there are two KeyCodes for the XK_Escape KeyCode but XKeysymToKeycode only
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// gets one of them, hence the need for this crazy lookup which works correctly with rebound keys.
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memset(keycode_lookup_table, 0, sizeof(keycode_lookup_table));
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struct SymMapping {
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KeySym sym;
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Code code;
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} sym_table[] = {
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{ XK_BackSpace, key_back },
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{ XK_Delete, key_del },
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{ XK_Up, key_up },
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{ XK_Down, key_down },
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{ XK_Left, key_left },
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{ XK_Right, key_right },
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{ XK_Insert, key_insert },
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{ XK_Home, key_home },
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{ XK_End, key_end },
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{ XK_Page_Up, key_page_up },
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{ XK_Page_Down, key_page_down },
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{ XK_Escape, key_esc },
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{ XK_F1, key_f1 },
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{ XK_F2, key_f2 },
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{ XK_F3, key_f3 },
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{ XK_F4, key_f4 },
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{ XK_F5, key_f5 },
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{ XK_F6, key_f6 },
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{ XK_F7, key_f7 },
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{ XK_F8, key_f8 },
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{ XK_F9, key_f9 },
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{ XK_F10, key_f10 },
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{ XK_F11, key_f11 },
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{ XK_F12, key_f12 },
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};
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const int table_size = sizeof(sym_table) / sizeof(struct SymMapping);
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int key_min, key_max, syms_per_code;
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XDisplayKeycodes(dpy, &key_min, &key_max);
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int key_count = (key_max - key_min) + 1;
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KeySym* syms = XGetKeyboardMapping(
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dpy,
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key_min,
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key_count,
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&syms_per_code
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);
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if(!syms) return;
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int key = key_min;
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for(int i = 0; i < key_count * syms_per_code; ++i){
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for(int j = 0; j < table_size; ++j){
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if(sym_table[j].sym == syms[i]){
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keycode_lookup_table[key + (i/syms_per_code)] = sym_table[j].code;
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break;
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}
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}
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}
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XFree(syms);
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}
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// BOTTOM
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@ -67,7 +67,6 @@
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#include <unistd.h>
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#include "4ed_internal.h"
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#include "4ed_linux_keyboard.cpp"
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#include "system_shared.h"
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#include <stdlib.h>
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@ -1664,6 +1663,90 @@ InitializeXInput(Display *dpy, Window XWindow)
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return(result);
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}
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globalvar u8 keycode_lookup_table[255];
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inline u8
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keycode_lookup(u8 system_code){
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return keycode_lookup_table[system_code];
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}
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internal void
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keycode_init(Display* dpy){
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// NOTE(inso): This looks a bit dumb, but it's the best way I can think of to do it, since:
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// KeySyms are the type representing "virtual" keys, like XK_BackSpace, but they are 32-bit ints.
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// KeyCodes are guaranteed to fit in 1 byte (and therefore the keycode_lookup_table) but
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// have dynamic numbers assigned by the XServer.
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// There is XKeysymToKeycode, but it only returns 1 KeyCode for a KeySym. I have my capslock
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// rebound to esc, so there are two KeyCodes for the XK_Escape KeyCode but XKeysymToKeycode only
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// gets one of them, hence the need for this crazy lookup which works correctly with rebound keys.
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memset(keycode_lookup_table, 0, sizeof(keycode_lookup_table));
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struct SymMapping {
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KeySym sym;
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Code code;
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} sym_table[] = {
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{ XK_BackSpace, key_back },
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{ XK_Delete, key_del },
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{ XK_Up, key_up },
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{ XK_Down, key_down },
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{ XK_Left, key_left },
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{ XK_Right, key_right },
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{ XK_Insert, key_insert },
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{ XK_Home, key_home },
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{ XK_End, key_end },
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{ XK_Page_Up, key_page_up },
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{ XK_Page_Down, key_page_down },
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{ XK_Escape, key_esc },
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{ XK_F1, key_f1 },
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{ XK_F2, key_f2 },
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{ XK_F3, key_f3 },
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{ XK_F4, key_f4 },
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{ XK_F5, key_f5 },
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{ XK_F6, key_f6 },
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{ XK_F7, key_f7 },
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{ XK_F8, key_f8 },
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{ XK_F9, key_f9 },
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{ XK_F10, key_f10 },
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{ XK_F11, key_f11 },
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{ XK_F12, key_f12 },
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{ XK_F13, key_f13 },
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{ XK_F14, key_f14 },
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{ XK_F15, key_f15 },
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{ XK_F16, key_f16 },
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};
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const int table_size = sizeof(sym_table) / sizeof(struct SymMapping);
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int key_min, key_max, syms_per_code;
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XDisplayKeycodes(dpy, &key_min, &key_max);
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int key_count = (key_max - key_min) + 1;
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KeySym* syms = XGetKeyboardMapping(
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dpy,
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key_min,
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key_count,
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&syms_per_code
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);
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if(!syms) return;
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int key = key_min;
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for(int i = 0; i < key_count * syms_per_code; ++i){
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for(int j = 0; j < table_size; ++j){
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if(sym_table[j].sym == syms[i]){
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keycode_lookup_table[key + (i/syms_per_code)] = sym_table[j].code;
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break;
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}
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}
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}
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XFree(syms);
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}
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internal void
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LinuxPushKey(u8 code, u8 chr, u8 chr_nocaps, b8 (*mods)[MDFR_INDEX_COUNT], b32 is_hold)
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{
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