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SDL_gemevents.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
slouken@libsdl.org
*/
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#include "SDL_config.h"
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/*
* GEM SDL video driver implementation
* inspired from the Dummy SDL driver
*
* Patrice Mandin
* and work from
* Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
*/
#include <gem.h>
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#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
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#include "SDL_gemvideo.h"
#include "SDL_gemevents_c.h"
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#include "../ataricommon/SDL_atarikeys.h" /* for keyboard scancodes */
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#include "../ataricommon/SDL_atarievents_c.h"
#include "../ataricommon/SDL_xbiosevents_c.h"
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#include "../ataricommon/SDL_ataridevmouse_c.h"
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/* Defines */
#define ATARIBIOS_MAXKEYS 128
/* Variables */
static unsigned char gem_currentkeyboard[ATARIBIOS_MAXKEYS];
static unsigned char gem_previouskeyboard[ATARIBIOS_MAXKEYS];
static unsigned char gem_currentascii[ATARIBIOS_MAXKEYS];
/* The translation tables from a console scancode to a SDL keysym */
static SDLKey keymap[ATARIBIOS_MAXKEYS];
/* Functions prototypes */
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static SDL_keysym *TranslateKey(int scancode, int asciicode,
SDL_keysym * keysym, SDL_bool pressed);
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static int do_messages(_THIS, short *message);
static void do_keyboard(short kc, short ks);
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static void do_mouse(_THIS, short mx, short my, short mb, short ks);
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/* Functions */
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static SDL_keysym *
TranslateKey(int scancode, int asciicode, SDL_keysym * keysym,
SDL_bool pressed)
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{
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/* Set the keysym information */
keysym->scancode = scancode;
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if (asciicode)
keysym->sym = asciicode;
else
keysym->sym = keymap[scancode];
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keysym->mod = KMOD_NONE;
keysym->unicode = 0;
if (SDL_TranslateUNICODE && pressed) {
keysym->unicode = SDL_AtariToUnicodeTable[asciicode];
}
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return (keysym);
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}
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void
GEM_InitOSKeymap(_THIS)
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{
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int i;
SDL_memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
SDL_memset(gem_previouskeyboard, 0, sizeof(gem_previouskeyboard));
SDL_memset(gem_currentascii, 0, sizeof(gem_currentascii));
/* Initialize keymap */
for (i = 0; i < sizeof(keymap); i++)
keymap[i] = SDLK_UNKNOWN;
/* Functions keys */
for (i = 0; i < 10; i++)
keymap[SCANCODE_F1 + i] = SDLK_F1 + i;
/* Cursor keypad */
keymap[SCANCODE_HELP] = SDLK_HELP;
keymap[SCANCODE_UNDO] = SDLK_UNDO;
keymap[SCANCODE_INSERT] = SDLK_INSERT;
keymap[SCANCODE_CLRHOME] = SDLK_HOME;
keymap[SCANCODE_UP] = SDLK_UP;
keymap[SCANCODE_DOWN] = SDLK_DOWN;
keymap[SCANCODE_RIGHT] = SDLK_RIGHT;
keymap[SCANCODE_LEFT] = SDLK_LEFT;
/* Special keys */
keymap[SCANCODE_ESCAPE] = SDLK_ESCAPE;
keymap[SCANCODE_BACKSPACE] = SDLK_BACKSPACE;
keymap[SCANCODE_TAB] = SDLK_TAB;
keymap[SCANCODE_ENTER] = SDLK_RETURN;
keymap[SCANCODE_DELETE] = SDLK_DELETE;
keymap[SCANCODE_LEFTCONTROL] = SDLK_LCTRL;
keymap[SCANCODE_LEFTSHIFT] = SDLK_LSHIFT;
keymap[SCANCODE_RIGHTSHIFT] = SDLK_RSHIFT;
keymap[SCANCODE_LEFTALT] = SDLK_LALT;
keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
/* Mouse init */
GEM_mouse_relative = SDL_FALSE;
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}
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void
GEM_PumpEvents(_THIS)
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{
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short mousex, mousey, mouseb, dummy;
short kstate, prevkc, prevks;
int i;
SDL_keysym keysym;
SDL_memset(gem_currentkeyboard, 0, sizeof(gem_currentkeyboard));
prevkc = prevks = 0;
for (;;) {
int quit, resultat, event_mask, mouse_event;
short buffer[8], kc;
short x2, y2, w2, h2;
quit = mouse_event = x2 = y2 = w2 = h2 = 0;
event_mask = MU_MESAG | MU_TIMER | MU_KEYBD;
if (!GEM_fullscreen && (GEM_handle >= 0)) {
wind_get(GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
event_mask |= MU_M1;
if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS)) {
mouse_event = MO_LEAVE;
} else {
mouse_event = MO_ENTER;
}
}
resultat = evnt_multi(event_mask,
0, 0, 0,
mouse_event, x2, y2, w2, h2,
0, 0, 0, 0, 0,
buffer,
10,
&dummy, &dummy, &dummy, &kstate, &kc, &dummy);
/* Message event ? */
if (resultat & MU_MESAG)
quit = do_messages(this, buffer);
/* Keyboard event ? */
if (resultat & MU_KEYBD) {
if ((prevkc != kc) || (prevks != kstate)) {
do_keyboard(kc, kstate);
} else {
/* Avoid looping, if repeating same key */
break;
}
}
/* Mouse entering/leaving window */
if (resultat & MU_M1) {
if (this->input_grab == SDL_GRAB_OFF) {
if (SDL_GetAppState() & SDL_APPMOUSEFOCUS) {
SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
} else {
SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
}
}
}
/* Timer event ? */
if ((resultat & MU_TIMER) || quit)
break;
}
/* Update mouse */
graf_mkstate(&mousex, &mousey, &mouseb, &kstate);
do_mouse(this, mousex, mousey, mouseb, kstate);
/* Now generate keyboard events */
for (i = 0; i < ATARIBIOS_MAXKEYS; i++) {
/* Key pressed ? */
if (gem_currentkeyboard[i] && !gem_previouskeyboard[i])
SDL_PrivateKeyboard(SDL_PRESSED,
TranslateKey(i, gem_currentascii[i],
&keysym, SDL_TRUE));
/* Key unpressed ? */
if (gem_previouskeyboard[i] && !gem_currentkeyboard[i])
SDL_PrivateKeyboard(SDL_RELEASED,
TranslateKey(i, gem_currentascii[i],
&keysym, SDL_FALSE));
}
SDL_memcpy(gem_previouskeyboard, gem_currentkeyboard,
sizeof(gem_previouskeyboard));
/* Refresh window name ? */
if (GEM_refresh_name) {
if (SDL_GetAppState() & SDL_APPACTIVE) {
/* Fullscreen/windowed */
if (GEM_title_name) {
wind_set(GEM_handle, WF_NAME,
(short) (((unsigned long) GEM_title_name) >>
16),
(short) (((unsigned long) GEM_title_name) &
0xffff), 0, 0);
}
} else {
/* Iconified */
if (GEM_icon_name) {
wind_set(GEM_handle, WF_NAME,
(short) (((unsigned long) GEM_icon_name) >>
16),
(short) (((unsigned long) GEM_icon_name) &
0xffff), 0, 0);
}
}
GEM_refresh_name = SDL_FALSE;
}
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}
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static int
do_messages(_THIS, short *message)
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{
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int quit, posted;
short x2, y2, w2, h2;
quit = 0;
switch (message[0]) {
case WM_CLOSED:
case AP_TERM:
posted = SDL_PrivateQuit();
quit = 1;
break;
case WM_MOVED:
wind_set(message[3], WF_CURRXYWH, message[4], message[5],
message[6], message[7]);
break;
case WM_TOPPED:
wind_set(message[3], WF_TOP, message[4], 0, 0, 0);
/* Continue with TOP event processing */
case WM_ONTOP:
SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
if (VDI_setpalette) {
VDI_setpalette(this, VDI_curpalette);
}
break;
case WM_REDRAW:
if (!GEM_lock_redraw) {
GEM_wind_redraw(this, message[3], &message[4]);
}
break;
case WM_ICONIFY:
case WM_ALLICONIFY:
wind_set(message[3], WF_ICONIFY, message[4], message[5],
message[6], message[7]);
/* If we're active, make ourselves inactive */
if (SDL_GetAppState() & SDL_APPACTIVE) {
/* Send an internal deactivate event */
SDL_PrivateAppActive(0, SDL_APPACTIVE);
}
/* Update window title */
if (GEM_refresh_name && GEM_icon_name) {
wind_set(GEM_handle, WF_NAME,
(short) (((unsigned long) GEM_icon_name) >> 16),
(short) (((unsigned long) GEM_icon_name) & 0xffff),
0, 0);
GEM_refresh_name = SDL_FALSE;
}
break;
case WM_UNICONIFY:
wind_set(message[3], WF_UNICONIFY, message[4], message[5],
message[6], message[7]);
/* If we're not active, make ourselves active */
if (!(SDL_GetAppState() & SDL_APPACTIVE)) {
/* Send an internal activate event */
SDL_PrivateAppActive(1, SDL_APPACTIVE);
}
if (GEM_refresh_name && GEM_title_name) {
wind_set(GEM_handle, WF_NAME,
(short) (((unsigned long) GEM_title_name) >> 16),
(short) (((unsigned long) GEM_title_name) & 0xffff),
0, 0);
GEM_refresh_name = SDL_FALSE;
}
break;
case WM_SIZED:
wind_set(message[3], WF_CURRXYWH, message[4], message[5],
message[6], message[7]);
wind_get(message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
GEM_win_fulled = SDL_FALSE; /* Cancel maximized flag */
GEM_lock_redraw = SDL_TRUE; /* Prevent redraw till buffers resized */
SDL_PrivateResize(w2, h2);
break;
case WM_FULLED:
{
short x, y, w, h;
if (GEM_win_fulled) {
wind_get(message[3], WF_PREVXYWH, &x, &y, &w, &h);
GEM_win_fulled = SDL_FALSE;
} else {
x = GEM_desk_x;
y = GEM_desk_y;
w = GEM_desk_w;
h = GEM_desk_h;
GEM_win_fulled = SDL_TRUE;
}
wind_set(message[3], WF_CURRXYWH, x, y, w, h);
wind_get(message[3], WF_WORKXYWH, &x2, &y2, &w2, &h2);
GEM_lock_redraw = SDL_TRUE; /* Prevent redraw till buffers resized */
SDL_PrivateResize(w2, h2);
}
break;
case WM_BOTTOMED:
wind_set(message[3], WF_BOTTOM, 0, 0, 0, 0);
/* Continue with BOTTOM event processing */
case WM_UNTOPPED:
SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
if (VDI_setpalette) {
VDI_setpalette(this, VDI_oldpalette);
}
break;
}
return quit;
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}
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static void
do_keyboard(short kc, short ks)
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{
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int scancode, asciicode;
if (kc) {
scancode = (kc >> 8) & 127;
asciicode = kc & 255;
gem_currentkeyboard[scancode] = 0xFF;
gem_currentascii[scancode] = asciicode;
}
/* Read special keys */
if (ks & K_RSHIFT)
gem_currentkeyboard[SCANCODE_RIGHTSHIFT] = 0xFF;
if (ks & K_LSHIFT)
gem_currentkeyboard[SCANCODE_LEFTSHIFT] = 0xFF;
if (ks & K_CTRL)
gem_currentkeyboard[SCANCODE_LEFTCONTROL] = 0xFF;
if (ks & K_ALT)
gem_currentkeyboard[SCANCODE_LEFTALT] = 0xFF;
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}
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static void
do_mouse(_THIS, short mx, short my, short mb, short ks)
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{
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static short prevmousex = 0, prevmousey = 0, prevmouseb = 0;
short x2, y2, w2, h2;
/* Don't return mouse events if out of window */
if ((SDL_GetAppState() & SDL_APPMOUSEFOCUS) == 0) {
return;
}
/* Retrieve window coords, and generate mouse events accordingly */
x2 = y2 = 0;
w2 = VDI_w;
h2 = VDI_h;
if ((!GEM_fullscreen) && (GEM_handle >= 0)) {
wind_get(GEM_handle, WF_WORKXYWH, &x2, &y2, &w2, &h2);
/* Do not generate mouse button event if out of window working area */
if ((mx < x2) || (mx >= x2 + w2) || (my < y2) || (my >= y2 + h2)) {
mb = prevmouseb;
}
}
/* Mouse motion ? */
if (GEM_mouse_relative) {
if (GEM_usedevmouse) {
SDL_AtariDevMouse_PostMouseEvents(this, SDL_FALSE);
} else {
SDL_AtariXbios_PostMouseEvents(this, SDL_FALSE);
}
} else {
if ((prevmousex != mx) || (prevmousey != my)) {
int posx, posy;
/* Give mouse position relative to window position */
posx = mx - x2;
if (posx < 0)
posx = 0;
if (posx > w2)
posx = w2 - 1;
posy = my - y2;
if (posy < 0)
posy = 0;
if (posy > h2)
posy = h2 - 1;
SDL_PrivateMouseMotion(0, 0, posx, posy);
}
prevmousex = mx;
prevmousey = my;
}
/* Mouse button ? */
if (prevmouseb != mb) {
int i;
for (i = 0; i < 2; i++) {
int curbutton, prevbutton;
curbutton = mb & (1 << i);
prevbutton = prevmouseb & (1 << i);
if (curbutton && !prevbutton) {
SDL_PrivateMouseButton(SDL_PRESSED, i + 1, 0, 0);
}
if (!curbutton && prevbutton) {
SDL_PrivateMouseButton(SDL_RELEASED, i + 1, 0, 0);
}
}
prevmouseb = mb;
}
/* Read special keys */
if (ks & K_RSHIFT)
gem_currentkeyboard[SCANCODE_RIGHTSHIFT] = 0xFF;
if (ks & K_LSHIFT)
gem_currentkeyboard[SCANCODE_LEFTSHIFT] = 0xFF;
if (ks & K_CTRL)
gem_currentkeyboard[SCANCODE_LEFTCONTROL] = 0xFF;
if (ks & K_ALT)
gem_currentkeyboard[SCANCODE_LEFTALT] = 0xFF;
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}
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/* vi: set ts=4 sw=4 expandtab: */