linux: reorganise keyboard stuff

This commit is contained in:
insofaras 2016-05-16 17:59:18 +01:00
parent d5f98bcd31
commit 68f76ec02e
2 changed files with 84 additions and 98 deletions

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

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