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-rwxr-xr-xsrc/fake86/input.c361
1 files changed, 361 insertions, 0 deletions
diff --git a/src/fake86/input.c b/src/fake86/input.c
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index 0000000..f92428d
--- /dev/null
+++ b/src/fake86/input.c
@@ -0,0 +1,361 @@
+/*
+ Fake86: A portable, open-source 8086 PC emulator.
+ Copyright (C)2010-2013 Mike Chambers
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+*/
+
+/* input.c: functions for translation of SDL scancodes to BIOS scancodes,
+ and handling of SDL events in general. */
+
+#include <SDL/SDL.h>
+#include <stdint.h>
+#include "sermouse.h"
+
+uint8_t keydown[0x100], keyboardwaitack = 0;
+extern uint32_t usegrabmode;
+
+extern void doirq (uint8_t irqnum);
+extern uint8_t running, portram[0x10000];
+extern SDL_Surface *screen;
+
+uint8_t translatescancode (uint16_t keyval) {
+ switch (keyval) {
+ case 0x1B:
+ return (1);
+ break; //Esc
+ case 0x30:
+ return (0xB);
+ break; //zero
+ case 0x31:
+ case 0x32:
+ case 0x33:
+ case 0x34:
+ case 0x35:
+ case 0x36:
+ case 0x37:
+ case 0x38:
+ case 0x39:
+ return (keyval - 0x2F);
+ break; //other number keys
+ case 0x2D:
+ return (0xC);
+ break; //-_
+ case 0x3D:
+ return (0xD);
+ break; //=+
+ case 0x8:
+ return (0xE);
+ break; //backspace
+ case 0x9:
+ return (0xF);
+ break; //tab
+ case 0x71:
+ return (0x10);
+ break;
+ case 0x77:
+ return (0x11);
+ break;
+ case 0x65:
+ return (0x12);
+ break;
+ case 0x72:
+ return (0x13);
+ break;
+ case 0x74:
+ return (0x14);
+ break;
+ case 0x79:
+ return (0x15);
+ break;
+ case 0x75:
+ return (0x16);
+ break;
+ case 0x69:
+ return (0x17);
+ break;
+ case 0x6F:
+ return (0x18);
+ break;
+ case 0x70:
+ return (0x19);
+ break;
+ case 0x5B:
+ return (0x1A);
+ break;
+ case 0x5D:
+ return (0x1B);
+ break;
+ case 0xD:
+ case 0x10F:
+ return (0x1C);
+ break; //enter
+ case 0x131:
+ case 0x132:
+ return (0x1D);
+ break; //ctrl
+ case 0x61:
+ return (0x1E);
+ break;
+ case 0x73:
+ return (0x1F);
+ break;
+ case 0x64:
+ return (0x20);
+ break;
+ case 0x66:
+ return (0x21);
+ break;
+ case 0x67:
+ return (0x22);
+ break;
+ case 0x68:
+ return (0x23);
+ break;
+ case 0x6A:
+ return (0x24);
+ break;
+ case 0x6B:
+ return (0x25);
+ break;
+ case 0x6C:
+ return (0x26);
+ break;
+ case 0x3B:
+ return (0x27);
+ break;
+ case 0x27:
+ return (0x28);
+ break;
+ case 0x60:
+ return (0x29);
+ break;
+ case 0x130:
+ return (0x2A);
+ break; //left shift
+ case 0x5C:
+ return (0x2B);
+ break;
+ case 0x7A:
+ return (0x2C);
+ break;
+ case 0x78:
+ return (0x2D);
+ break;
+ case 0x63:
+ return (0x2E);
+ break;
+ case 0x76:
+ return (0x2F);
+ break;
+ case 0x62:
+ return (0x30);
+ break;
+ case 0x6E:
+ return (0x31);
+ break;
+ case 0x6D:
+ return (0x32);
+ break;
+ case 0x2C:
+ return (0x33);
+ break;
+ case 0x2E:
+ return (0x34);
+ break;
+ case 0x2F:
+ return (0x35);
+ break;
+ case 0x12F:
+ return (0x36);
+ break; //right shift
+ case 0x13C:
+ return (0x37);
+ break; //print screen
+ case 0x133:
+ case 0x134:
+ return (0x38);
+ break; //alt
+ case 0x20:
+ return (0x39);
+ break; //space
+ case 0x12D:
+ return (0x3A);
+ break; //caps lock
+ case 0x11A:
+ case 0x11B:
+ case 0x11C:
+ case 0x11D:
+ case 0x11E:
+ case 0x11F:
+ case 0x120:
+ case 0x121:
+ case 0x122:
+ case 0x123:
+ return (keyval - 0x11A + 0x3B);
+ break; //F1 to F10
+ case 0x12C:
+ return (0x45);
+ break; //num lock
+ case 0x12E:
+ return (0x46);
+ break; //scroll lock
+ case 0x116:
+ case 0x107:
+ return (0x47);
+ break; //home
+ case 0x111:
+ case 0x108:
+ return (0x48);
+ break; //up
+ case 0x118:
+ case 0x109:
+ return (0x49);
+ break; //pgup
+ case 0x10D:
+ return (0x4A);
+ break; //keypad -
+ case 0x114:
+ case 0x104:
+ return (0x4B);
+ break; //left
+ case 0x105:
+ return (0x4C);
+ break; //center
+ case 0x113:
+ case 0x106:
+ return (0x4D);
+ break; //right
+ case 0x10E:
+ return (0x4E);
+ break; //keypad +
+ case 0x117:
+ case 0x101:
+ return (0x4F);
+ break; //end
+ case 0x112:
+ case 0x102:
+ return (0x50);
+ break; //down
+ case 0x119:
+ case 0x103:
+ return (0x51);
+ break; //pgdn
+ case 0x115:
+ case 0x100:
+ return (0x52);
+ break; //ins
+ case 0x7F:
+ case 0x10A:
+ return (0x53);
+ break; //del
+ default:
+ return (0);
+ }
+}
+
+uint8_t buttons = 0;
+extern void sermouseevent (uint8_t buttons, int8_t xrel, int8_t yrel);
+extern struct sermouse_s sermouse;
+extern void setwindowtitle (uint8_t *extra);
+
+void mousegrabtoggle() {
+ if (usegrabmode == SDL_GRAB_ON) {
+ usegrabmode = SDL_GRAB_OFF;
+ SDL_WM_GrabInput (SDL_GRAB_OFF);
+ SDL_ShowCursor (SDL_ENABLE);
+ setwindowtitle ("");
+ }
+ else {
+ usegrabmode = SDL_GRAB_ON;
+ SDL_WM_GrabInput (SDL_GRAB_ON);
+ SDL_ShowCursor (SDL_DISABLE);
+ setwindowtitle (" (press Ctrl + Alt to release mouse)");
+ }
+}
+
+extern uint8_t scrmodechange;
+extern uint32_t usefullscreen;
+void handleinput() {
+ SDL_Event event;
+ int mx = 0, my = 0;
+ uint8_t tempbuttons;
+ if (SDL_PollEvent (&event) ) {
+ switch (event.type) {
+ case SDL_KEYDOWN:
+ portram[0x60] = translatescancode (event.key.keysym.sym);
+ portram[0x64] |= 2;
+ doirq (1);
+ //printf("%02X\n", translatescancode(event.key.keysym.sym));
+ keydown[translatescancode (event.key.keysym.sym) ] = 1;
+ if (keydown[0x38] && keydown[0x1D] && (SDL_WM_GrabInput (SDL_GRAB_QUERY) == SDL_GRAB_ON) ) {
+ keydown[0x1D] = 0;
+ keydown[0x32] = 0;
+ mousegrabtoggle();
+ break;
+ }
+ if (keydown[0x38] && keydown[0x1C]) {
+ keydown[0x1D] = 0;
+ keydown[0x38] = 0;
+ if (usefullscreen) usefullscreen = 0;
+ else usefullscreen = SDL_FULLSCREEN;
+ scrmodechange = 1;
+ break;
+ }
+ break;
+ case SDL_KEYUP:
+ portram[0x60] = translatescancode (event.key.keysym.sym) | 0x80;
+ portram[0x64] |= 2;
+ doirq (1);
+ keydown[translatescancode (event.key.keysym.sym) ] = 0;
+ break;
+ case SDL_MOUSEBUTTONDOWN:
+ if (SDL_WM_GrabInput (SDL_GRAB_QUERY) == SDL_GRAB_OFF) {
+ mousegrabtoggle();
+ break;
+ }
+ tempbuttons = SDL_GetMouseState (NULL, NULL);
+ if (tempbuttons & 1) buttons = 2;
+ else buttons = 0;
+ if (tempbuttons & 4) buttons |= 1;
+ sermouseevent (buttons, 0, 0);
+ break;
+ case SDL_MOUSEBUTTONUP:
+ if (SDL_WM_GrabInput (SDL_GRAB_QUERY) == SDL_GRAB_OFF) break;
+ tempbuttons = SDL_GetMouseState (NULL, NULL);
+ if (tempbuttons & 1) buttons = 2;
+ else buttons = 0;
+ if (tempbuttons & 4) buttons |= 1;
+ sermouseevent (buttons, 0, 0);
+ break;
+ case SDL_MOUSEMOTION:
+ if (SDL_WM_GrabInput (SDL_GRAB_QUERY) == SDL_GRAB_OFF) break;
+ SDL_GetRelativeMouseState (&mx, &my);
+ sermouseevent (buttons, (int8_t) mx, (int8_t) my);
+ SDL_WarpMouse (screen->w / 2, screen->h / 2);
+ while (1) {
+ SDL_PollEvent (&event);
+ SDL_GetRelativeMouseState (&mx, &my);
+ if ( (mx == 0) && (my == 0) ) break;
+ }
+ break;
+ case SDL_QUIT:
+ running = 0;
+ break;
+ default:
+ break;
+ }
+ }
+}
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