mirror of
https://github.com/libretro/oberon-risc-emu.git
synced 2024-12-04 23:16:43 +00:00
216 lines
6.7 KiB
C
216 lines
6.7 KiB
C
// Translate SDL scancodes to PS/2 codeset 2 scancodes.
|
|
|
|
#include <SDL.h>
|
|
#include "sdl-ps2.h"
|
|
|
|
struct k_info {
|
|
unsigned char code;
|
|
unsigned char type;
|
|
};
|
|
|
|
enum k_type {
|
|
K_UNKNOWN = 0,
|
|
K_NORMAL,
|
|
K_EXTENDED,
|
|
K_NUMLOCK_HACK,
|
|
K_SHIFT_HACK,
|
|
};
|
|
|
|
static struct k_info keymap[SDL_NUM_SCANCODES];
|
|
|
|
int ps2_encode(int sdl_scancode, bool make, uint8_t out[static MAX_PS2_CODE_LEN]) {
|
|
int i = 0;
|
|
struct k_info info = keymap[sdl_scancode];
|
|
switch (info.type) {
|
|
case K_UNKNOWN: {
|
|
break;
|
|
}
|
|
|
|
case K_NORMAL: {
|
|
if (!make) {
|
|
out[i++] = 0xF0;
|
|
}
|
|
out[i++] = info.code;
|
|
break;
|
|
}
|
|
|
|
case K_EXTENDED: {
|
|
out[i++] = 0xE0;
|
|
if (!make) {
|
|
out[i++] = 0xF0;
|
|
}
|
|
out[i++] = info.code;
|
|
break;
|
|
}
|
|
|
|
case K_NUMLOCK_HACK: {
|
|
// This assumes Num Lock is always active
|
|
if (make) {
|
|
// fake shift press
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0x12;
|
|
out[i++] = 0xE0;
|
|
out[i++] = info.code;
|
|
} else {
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0xF0;
|
|
out[i++] = info.code;
|
|
// fake shift release
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0xF0;
|
|
out[i++] = 0x12;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case K_SHIFT_HACK: {
|
|
SDL_Keymod mod = SDL_GetModState();
|
|
if (make) {
|
|
// fake shift release
|
|
if (mod & KMOD_LSHIFT) {
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0xF0;
|
|
out[i++] = 0x12;
|
|
}
|
|
if (mod & KMOD_RSHIFT) {
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0xF0;
|
|
out[i++] = 0x59;
|
|
}
|
|
out[i++] = 0xE0;
|
|
out[i++] = info.code;
|
|
} else {
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0xF0;
|
|
out[i++] = info.code;
|
|
// fake shift press
|
|
if (mod & KMOD_RSHIFT) {
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0x59;
|
|
}
|
|
if (mod & KMOD_LSHIFT) {
|
|
out[i++] = 0xE0;
|
|
out[i++] = 0x12;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static struct k_info keymap[SDL_NUM_SCANCODES] = {
|
|
[SDL_SCANCODE_A] = { 0x1C, K_NORMAL },
|
|
[SDL_SCANCODE_B] = { 0x32, K_NORMAL },
|
|
[SDL_SCANCODE_C] = { 0x21, K_NORMAL },
|
|
[SDL_SCANCODE_D] = { 0x23, K_NORMAL },
|
|
[SDL_SCANCODE_E] = { 0x24, K_NORMAL },
|
|
[SDL_SCANCODE_F] = { 0x2B, K_NORMAL },
|
|
[SDL_SCANCODE_G] = { 0x34, K_NORMAL },
|
|
[SDL_SCANCODE_H] = { 0x33, K_NORMAL },
|
|
[SDL_SCANCODE_I] = { 0x43, K_NORMAL },
|
|
[SDL_SCANCODE_J] = { 0x3B, K_NORMAL },
|
|
[SDL_SCANCODE_K] = { 0x42, K_NORMAL },
|
|
[SDL_SCANCODE_L] = { 0x4B, K_NORMAL },
|
|
[SDL_SCANCODE_M] = { 0x3A, K_NORMAL },
|
|
[SDL_SCANCODE_N] = { 0x31, K_NORMAL },
|
|
[SDL_SCANCODE_O] = { 0x44, K_NORMAL },
|
|
[SDL_SCANCODE_P] = { 0x4D, K_NORMAL },
|
|
[SDL_SCANCODE_Q] = { 0x15, K_NORMAL },
|
|
[SDL_SCANCODE_R] = { 0x2D, K_NORMAL },
|
|
[SDL_SCANCODE_S] = { 0x1B, K_NORMAL },
|
|
[SDL_SCANCODE_T] = { 0x2C, K_NORMAL },
|
|
[SDL_SCANCODE_U] = { 0x3C, K_NORMAL },
|
|
[SDL_SCANCODE_V] = { 0x2A, K_NORMAL },
|
|
[SDL_SCANCODE_W] = { 0x1D, K_NORMAL },
|
|
[SDL_SCANCODE_X] = { 0x22, K_NORMAL },
|
|
[SDL_SCANCODE_Y] = { 0x35, K_NORMAL },
|
|
[SDL_SCANCODE_Z] = { 0x1A, K_NORMAL },
|
|
|
|
[SDL_SCANCODE_1] = { 0x16, K_NORMAL },
|
|
[SDL_SCANCODE_2] = { 0x1E, K_NORMAL },
|
|
[SDL_SCANCODE_3] = { 0x26, K_NORMAL },
|
|
[SDL_SCANCODE_4] = { 0x25, K_NORMAL },
|
|
[SDL_SCANCODE_5] = { 0x2E, K_NORMAL },
|
|
[SDL_SCANCODE_6] = { 0x36, K_NORMAL },
|
|
[SDL_SCANCODE_7] = { 0x3D, K_NORMAL },
|
|
[SDL_SCANCODE_8] = { 0x3E, K_NORMAL },
|
|
[SDL_SCANCODE_9] = { 0x46, K_NORMAL },
|
|
[SDL_SCANCODE_0] = { 0x45, K_NORMAL },
|
|
|
|
[SDL_SCANCODE_RETURN] = { 0x5A, K_NORMAL },
|
|
[SDL_SCANCODE_ESCAPE] = { 0x76, K_NORMAL },
|
|
[SDL_SCANCODE_BACKSPACE] = { 0x66, K_NORMAL },
|
|
[SDL_SCANCODE_TAB] = { 0x0D, K_NORMAL },
|
|
[SDL_SCANCODE_SPACE] = { 0x29, K_NORMAL },
|
|
|
|
[SDL_SCANCODE_MINUS] = { 0x4E, K_NORMAL },
|
|
[SDL_SCANCODE_EQUALS] = { 0x55, K_NORMAL },
|
|
[SDL_SCANCODE_LEFTBRACKET] = { 0x54, K_NORMAL },
|
|
[SDL_SCANCODE_RIGHTBRACKET] = { 0x5B, K_NORMAL },
|
|
[SDL_SCANCODE_BACKSLASH] = { 0x5D, K_NORMAL },
|
|
[SDL_SCANCODE_NONUSHASH] = { 0x5D, K_NORMAL }, // same key as BACKSLASH
|
|
|
|
[SDL_SCANCODE_SEMICOLON] = { 0x4C, K_NORMAL },
|
|
[SDL_SCANCODE_APOSTROPHE] = { 0x52, K_NORMAL },
|
|
[SDL_SCANCODE_GRAVE] = { 0x0E, K_NORMAL },
|
|
[SDL_SCANCODE_COMMA] = { 0x41, K_NORMAL },
|
|
[SDL_SCANCODE_PERIOD] = { 0x49, K_NORMAL },
|
|
[SDL_SCANCODE_SLASH] = { 0x4A, K_NORMAL },
|
|
|
|
[SDL_SCANCODE_F1] = { 0x05, K_NORMAL },
|
|
[SDL_SCANCODE_F2] = { 0x06, K_NORMAL },
|
|
[SDL_SCANCODE_F3] = { 0x04, K_NORMAL },
|
|
[SDL_SCANCODE_F4] = { 0x0C, K_NORMAL },
|
|
[SDL_SCANCODE_F5] = { 0x03, K_NORMAL },
|
|
[SDL_SCANCODE_F6] = { 0x0B, K_NORMAL },
|
|
[SDL_SCANCODE_F7] = { 0x83, K_NORMAL },
|
|
[SDL_SCANCODE_F8] = { 0x0A, K_NORMAL },
|
|
[SDL_SCANCODE_F9] = { 0x01, K_NORMAL },
|
|
[SDL_SCANCODE_F10] = { 0x09, K_NORMAL },
|
|
[SDL_SCANCODE_F11] = { 0x78, K_NORMAL },
|
|
[SDL_SCANCODE_F12] = { 0x07, K_NORMAL },
|
|
|
|
// Most of the keys below are not used by Oberon
|
|
|
|
[SDL_SCANCODE_INSERT] = { 0x70, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_HOME] = { 0x6C, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_PAGEUP] = { 0x7D, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_DELETE] = { 0x71, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_END] = { 0x69, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_PAGEDOWN] = { 0x7A, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_RIGHT] = { 0x74, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_LEFT] = { 0x6B, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_DOWN] = { 0x72, K_NUMLOCK_HACK },
|
|
[SDL_SCANCODE_UP] = { 0x75, K_NUMLOCK_HACK },
|
|
|
|
[SDL_SCANCODE_KP_DIVIDE] = { 0x4A, K_SHIFT_HACK },
|
|
[SDL_SCANCODE_KP_MULTIPLY] = { 0x7C, K_NORMAL },
|
|
[SDL_SCANCODE_KP_MINUS] = { 0x7B, K_NORMAL },
|
|
[SDL_SCANCODE_KP_PLUS] = { 0x79, K_NORMAL },
|
|
[SDL_SCANCODE_KP_ENTER] = { 0x5A, K_EXTENDED },
|
|
[SDL_SCANCODE_KP_1] = { 0x69, K_NORMAL },
|
|
[SDL_SCANCODE_KP_2] = { 0x72, K_NORMAL },
|
|
[SDL_SCANCODE_KP_3] = { 0x7A, K_NORMAL },
|
|
[SDL_SCANCODE_KP_4] = { 0x6B, K_NORMAL },
|
|
[SDL_SCANCODE_KP_5] = { 0x73, K_NORMAL },
|
|
[SDL_SCANCODE_KP_6] = { 0x74, K_NORMAL },
|
|
[SDL_SCANCODE_KP_7] = { 0x6C, K_NORMAL },
|
|
[SDL_SCANCODE_KP_8] = { 0x75, K_NORMAL },
|
|
[SDL_SCANCODE_KP_9] = { 0x7D, K_NORMAL },
|
|
[SDL_SCANCODE_KP_0] = { 0x70, K_NORMAL },
|
|
[SDL_SCANCODE_KP_PERIOD] = { 0x71, K_NORMAL },
|
|
|
|
[SDL_SCANCODE_NONUSBACKSLASH] = { 0x61, K_NORMAL },
|
|
[SDL_SCANCODE_APPLICATION] = { 0x2F, K_EXTENDED },
|
|
|
|
[SDL_SCANCODE_LCTRL] = { 0x14, K_NORMAL },
|
|
[SDL_SCANCODE_LSHIFT] = { 0x12, K_NORMAL },
|
|
[SDL_SCANCODE_LALT] = { 0x11, K_NORMAL },
|
|
[SDL_SCANCODE_LGUI] = { 0x1F, K_EXTENDED },
|
|
[SDL_SCANCODE_RCTRL] = { 0x14, K_EXTENDED },
|
|
[SDL_SCANCODE_RSHIFT] = { 0x59, K_NORMAL },
|
|
[SDL_SCANCODE_RALT] = { 0x11, K_EXTENDED },
|
|
[SDL_SCANCODE_RGUI] = { 0x27, K_EXTENDED },
|
|
};
|