205 lines
6.7 KiB
C
205 lines
6.7 KiB
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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#include <pc/console.h>
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#define KEYBUFSIZE 8192
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typedef uint keycode_t;
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keycode_t keybuf[KEYBUFSIZE] = { 0 };
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keycode_t *keybuf_last = &keybuf[0];
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keycode_t *keybuf_ptr = &keybuf[0];
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void console_addkey(keycode_t key)
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{
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*keybuf_ptr++ = key;
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if (keybuf_ptr == keybuf + KEYBUFSIZE)
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keybuf_ptr = &keybuf[0];
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}
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keycode_t console_getkey(void)
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{
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keycode_t rc = *keybuf_last++;
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if (keybuf_last == keybuf + KEYBUFSIZE)
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keybuf_last = &keybuf[0];
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return rc;
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}
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keycode_t console_scankeybuf(void)
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{
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if (keybuf_last != keybuf_ptr)
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return console_getkey();
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return 0;
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}
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void console_flushkeybuf(void)
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{
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memset(keybuf, 0, KEYBUFSIZE);
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keybuf_last = keybuf_ptr = &keybuf[0];
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}
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#define QKEY(key, c, cshift, cmode, calt, cgui) \
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_QKEY(SDLK_##key, c, cshift, cmode, calt, cgui)
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#define _QKEY(key, c, cshift, cmode, calt, cgui) \
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case key: \
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if (__builtin_expect((mod & \
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(KMOD_SHIFT|KMOD_ALT|KMOD_MODE|KMOD_GUI)) == 0, 1)) \
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code = c; \
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else if ((mod & KMOD_SHIFT)) code = cshift; \
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else if ((mod & KMOD_LALT)) code = calt; \
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else if ((mod & KMOD_RALT)) code = cmode; \
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else if ((mod & KMOD_GUI)) code = cgui; \
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break;
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void console_handle_input(SDL_Keycode key)
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{
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keycode_t code = 0;
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SDL_Keymod mod = SDL_GetModState();
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if (mod & KMOD_CTRL)
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{
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if (key == SDLK_c)
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_except(E_BRK, "Ctrl+C received");
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return;
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}
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switch (key)
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{
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case SDLK_SPACE: code = ' '; break;
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case SDLK_BACKSPACE: code = '\b'; break;
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case SDLK_ESCAPE: code = 0x1B; break;
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case SDLK_RETURN:
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case SDLK_RETURN2:
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code = '\n';
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break;
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case SDLK_TAB: code = '\t'; break;
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// COMMON
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QKEY(a, 'a', 'A', 0, 0, 0);
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QKEY(b, 'b', 'B', 0, 0, 0);
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QKEY(c, 'c', 'C', 0, 0, 0);
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QKEY(d, 'd', 'D', 0, 0, 0);
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QKEY(e, 'e', 'E', 0, 0, 0);
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QKEY(f, 'f', 'F', 0, 0, 0);
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QKEY(g, 'g', 'G', 0, 0, 0);
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QKEY(h, 'h', 'H', 0, 0, 0);
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QKEY(i, 'i', 'I', 0, 0, 0);
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QKEY(j, 'j', 'J', 0, 0, 0);
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QKEY(k, 'k', 'K', 0, 0, 0);
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QKEY(l, 'l', 'L', 0, 0, 0);
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QKEY(m, 'm', 'M', 0, 0, 0);
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QKEY(n, 'n', 'N', 0, 0, 0);
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QKEY(o, 'o', 'O', 0, 0, 0);
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QKEY(p, 'p', 'P', 0, 0, 0);
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QKEY(q, 'q', 'Q', 0, 0, 0);
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QKEY(r, 'r', 'R', 0, 0, 0);
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QKEY(s, 's', 'S', 0, 0, 0);
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QKEY(t, 't', 'T', 0, 0, 0);
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QKEY(u, 'u', 'U', 0, 0, 0);
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QKEY(v, 'v', 'V', 0, 0, 0);
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QKEY(w, 'w', 'W', 0, 0, 0);
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QKEY(x, 'x', 'X', 0, 0, 0);
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QKEY(y, 'y', 'Y', 0, 0, 0);
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QKEY(z, 'z', 'Z', 0, 0, 0);
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// AZERTY
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QKEY(EXCLAIM, '!', 0, 0, 0, 0);
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QKEY(DOLLAR, '$', 0, 0, 0, 0);
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QKEY(ASTERISK, '*', 0, 0, 0, 0);
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QKEY(COLON, ':', '/', 0, 0, 0);
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QKEY(LESS, '<', '>', 0, 0, 0);
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QKEY(CARET, '^', 0, 0, 0, 0);
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QKEY(AMPERSAND, '&', '1', 0, 0, 0);
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QKEY(QUOTEDBL, '"', '3', '#', 0, 0);
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QKEY(LEFTPAREN, '(', '5', '[', 0, 0);
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QKEY(UNDERSCORE, '_', '8', '\\', 0, 0);
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QKEY(RIGHTPAREN, ')', 0, ']', 0, 0);
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// QWERTY
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QKEY(BACKSLASH, '\\', '|', 0, 0, 0);
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QKEY(PERIOD, '.', '>', 0, 0, 0);
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QKEY(SLASH, '/', '?', 0, 0, 0);
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QKEY(LEFTBRACKET, '[', '{', 0, 0, 0);
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QKEY(RIGHTBRACKET, ']', '}', 0, 0, 0);
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QKEY(BACKQUOTE, '`', '~', 0, 0, 0);
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// MIXED
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#ifdef QWERTY
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QKEY(QUOTE, '\'', '"', 0, 0, 0);
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QKEY(COMMA, ',', '<', 0, 0, 0);
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QKEY(SEMICOLON, ';', ':', 0, 0, 0);
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QKEY(EQUALS, '=', '+', 0, 0, 0);
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QKEY(MINUS, '-', '_', 0, 0, 0);
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QKEY(1, '1', '!', 0, 0, 0);
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QKEY(2, '2', '@', 0, 0, 0);
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QKEY(3, '3', '#', 0, 0, 0);
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QKEY(4, '4', '$', 0, 0, 0);
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QKEY(5, '5', '%', 0, 0, 0);
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QKEY(6, '6', '^', 0, 0, 0);
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QKEY(7, '7', '&', 0, 0, 0);
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QKEY(8, '8', '*', 0, 0, 0);
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QKEY(9, '9', '(', 0, 0, 0);
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QKEY(0, '0', ')', 0, 0, 0);
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#else
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QKEY(QUOTE, '\'', '4', '{', 0, 0);
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QKEY(COMMA, ',', '?', 0, 0, 0);
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QKEY(SEMICOLON, ';', '.', 0, 0, 0);
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QKEY(EQUALS, '=', '+', '}', 0, 0);
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QKEY(MINUS, '-', '6', '|', 0, 0);
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QKEY(1, '&', '1', 0, 0, 0);
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QKEY(2, 0, '2', '~', 0, 0);
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QKEY(3, '"', '3', '#', 0, 0);
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QKEY(4, '\'','4', '{', 0, 0);
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QKEY(5, '(', '5', '[', 0, 0);
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QKEY(6, '-', '6', '|', 0, 0);
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QKEY(7, 0, '7', '`', 0, 0);
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QKEY(8, '_', '8', '\\', 0, 0);
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QKEY(9, 0, '9', '^', 0, 0);
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QKEY(0, 0, '0', '@', 0, 0);
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#endif
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// Other
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QKEY(HASH, '#', 0, 0, 0, 0);
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QKEY(PERCENT, '%', 0, 0, 0, 0);
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QKEY(PLUS, '+', 0, 0, 0, 0);
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QKEY(GREATER, '>', 0, 0, 0, 0);
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QKEY(QUESTION, '?', 0, 0, 0, 0);
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QKEY(AT, '@', 0, 0, 0, 0);
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// Found experimentally
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_QKEY(231, 0, '0', '@', 0, 0);
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_QKEY(232, 0, '7', '`', 0, 0);
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_QKEY(233, 0, '2', '~', 0, 0);
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_QKEY(249, 0, '%', 0, 0, 0);
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default:
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return;
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}
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if (code != 0)
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console_addkey(code);
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}
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