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QEMU-Nyx-fork/sdl.c
bellard 32ff25bf68 ctrl-alt is the default grab key - reset modifiers when toggling grab state 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1094 c046a42c-6fe2-441c-8c8c-71466251a162
2004-10-03 14:33:54 +00:00

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/*
* QEMU SDL display driver
*
* Copyright (c) 2003 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "vl.h"
#include <SDL.h>
#ifndef _WIN32
#include <signal.h>
#endif
#if defined(__APPLE__)
#define CONFIG_SDL_GENERIC_KBD
#endif
static SDL_Surface *screen;
static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
static int last_vm_running;
static int gui_saved_grab;
static int gui_fullscreen;
static int gui_key_modifier_pressed;
static int gui_keysym;
static int gui_fullscreen_initial_grab;
static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
static uint8_t modifiers_state[256];
static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
{
// printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
SDL_UpdateRect(screen, x, y, w, h);
}
static void sdl_resize(DisplayState *ds, int w, int h)
{
int flags;
// printf("resizing to %d %d\n", w, h);
flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
flags |= SDL_RESIZABLE;
if (gui_fullscreen)
flags |= SDL_FULLSCREEN;
screen = SDL_SetVideoMode(w, h, 0, flags);
if (!screen) {
fprintf(stderr, "Could not open SDL display\n");
exit(1);
}
ds->data = screen->pixels;
ds->linesize = screen->pitch;
ds->depth = screen->format->BitsPerPixel;
ds->width = w;
ds->height = h;
}
#ifdef CONFIG_SDL_GENERIC_KBD
/* XXX: use keymap tables defined in the VNC patch because the
following code suppose you have a US keyboard. */
static const uint8_t scancodes[SDLK_LAST] = {
[SDLK_ESCAPE] = 0x01,
[SDLK_1] = 0x02,
[SDLK_2] = 0x03,
[SDLK_3] = 0x04,
[SDLK_4] = 0x05,
[SDLK_5] = 0x06,
[SDLK_6] = 0x07,
[SDLK_7] = 0x08,
[SDLK_8] = 0x09,
[SDLK_9] = 0x0a,
[SDLK_0] = 0x0b,
[SDLK_MINUS] = 0x0c,
[SDLK_EQUALS] = 0x0d,
[SDLK_BACKSPACE] = 0x0e,
[SDLK_TAB] = 0x0f,
[SDLK_q] = 0x10,
[SDLK_w] = 0x11,
[SDLK_e] = 0x12,
[SDLK_r] = 0x13,
[SDLK_t] = 0x14,
[SDLK_y] = 0x15,
[SDLK_u] = 0x16,
[SDLK_i] = 0x17,
[SDLK_o] = 0x18,
[SDLK_p] = 0x19,
[SDLK_LEFTBRACKET] = 0x1a,
[SDLK_RIGHTBRACKET] = 0x1b,
[SDLK_RETURN] = 0x1c,
[SDLK_LCTRL] = 0x1d,
[SDLK_a] = 0x1e,
[SDLK_s] = 0x1f,
[SDLK_d] = 0x20,
[SDLK_f] = 0x21,
[SDLK_g] = 0x22,
[SDLK_h] = 0x23,
[SDLK_j] = 0x24,
[SDLK_k] = 0x25,
[SDLK_l] = 0x26,
[SDLK_SEMICOLON] = 0x27,
[SDLK_QUOTE] = 0x28,
[SDLK_BACKQUOTE] = 0x29,
[SDLK_LSHIFT] = 0x2a,
[SDLK_BACKSLASH] = 0x2b,
[SDLK_z] = 0x2c,
[SDLK_x] = 0x2d,
[SDLK_c] = 0x2e,
[SDLK_v] = 0x2f,
[SDLK_b] = 0x30,
[SDLK_n] = 0x31,
[SDLK_m] = 0x32,
[SDLK_COMMA] = 0x33,
[SDLK_PERIOD] = 0x34,
[SDLK_SLASH] = 0x35,
[SDLK_KP_MULTIPLY] = 0x37,
[SDLK_LALT] = 0x38,
[SDLK_SPACE] = 0x39,
[SDLK_CAPSLOCK] = 0x3a,
[SDLK_F1] = 0x3b,
[SDLK_F2] = 0x3c,
[SDLK_F3] = 0x3d,
[SDLK_F4] = 0x3e,
[SDLK_F5] = 0x3f,
[SDLK_F6] = 0x40,
[SDLK_F7] = 0x41,
[SDLK_F8] = 0x42,
[SDLK_F9] = 0x43,
[SDLK_F10] = 0x44,
[SDLK_NUMLOCK] = 0x45,
[SDLK_SCROLLOCK] = 0x46,
[SDLK_KP7] = 0x47,
[SDLK_KP8] = 0x48,
[SDLK_KP9] = 0x49,
[SDLK_KP_MINUS] = 0x4a,
[SDLK_KP4] = 0x4b,
[SDLK_KP5] = 0x4c,
[SDLK_KP6] = 0x4d,
[SDLK_KP_PLUS] = 0x4e,
[SDLK_KP1] = 0x4f,
[SDLK_KP2] = 0x50,
[SDLK_KP3] = 0x51,
[SDLK_KP0] = 0x52,
[SDLK_KP_PERIOD] = 0x53,
[SDLK_PRINT] = 0x54,
[SDLK_LMETA] = 0x56,
[SDLK_KP_ENTER] = 0x9c,
[SDLK_KP_DIVIDE] = 0xb5,
[SDLK_UP] = 0xc8,
[SDLK_DOWN] = 0xd0,
[SDLK_RIGHT] = 0xcd,
[SDLK_LEFT] = 0xcb,
[SDLK_INSERT] = 0xd2,
[SDLK_HOME] = 0xc7,
[SDLK_END] = 0xcf,
[SDLK_PAGEUP] = 0xc9,
[SDLK_PAGEDOWN] = 0xd1,
[SDLK_DELETE] = 0xd3,
};
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
{
return scancodes[ev->keysym.sym];
}
#elif defined(_WIN32)
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
{
return ev->keysym.scancode;
}
#else
static const uint8_t x_keycode_to_pc_keycode[61] = {
0xc7, /* 97 Home */
0xc8, /* 98 Up */
0xc9, /* 99 PgUp */
0xcb, /* 100 Left */
0x4c, /* 101 KP-5 */
0xcd, /* 102 Right */
0xcf, /* 103 End */
0xd0, /* 104 Down */
0xd1, /* 105 PgDn */
0xd2, /* 106 Ins */
0xd3, /* 107 Del */
0x9c, /* 108 Enter */
0x9d, /* 109 Ctrl-R */
0x0, /* 110 Pause */
0xb7, /* 111 Print */
0xb5, /* 112 Divide */
0xb8, /* 113 Alt-R */
0xc6, /* 114 Break */
0x0, /* 115 */
0x0, /* 116 */
0x0, /* 117 */
0x0, /* 118 */
0x0, /* 119 */
0x70, /* 120 Hiragana_Katakana */
0x0, /* 121 */
0x0, /* 122 */
0x73, /* 123 backslash */
0x0, /* 124 */
0x0, /* 125 */
0x0, /* 126 */
0x0, /* 127 */
0x0, /* 128 */
0x79, /* 129 Henkan */
0x0, /* 130 */
0x7b, /* 131 Muhenkan */
0x0, /* 132 */
0x7d, /* 133 Yen */
0x0, /* 134 */
0x0, /* 135 */
0x47, /* 136 KP_7 */
0x48, /* 137 KP_8 */
0x49, /* 138 KP_9 */
0x4b, /* 139 KP_4 */
0x4c, /* 140 KP_5 */
0x4d, /* 141 KP_6 */
0x4f, /* 142 KP_1 */
0x50, /* 143 KP_2 */
0x51, /* 144 KP_3 */
0x52, /* 145 KP_0 */
0x53, /* 146 KP_. */
0x47, /* 147 KP_HOME */
0x48, /* 148 KP_UP */
0x49, /* 149 KP_PgUp */
0x4b, /* 150 KP_Left */
0x4c, /* 151 KP_ */
0x4d, /* 152 KP_Right */
0x4f, /* 153 KP_End */
0x50, /* 154 KP_Down */
0x51, /* 155 KP_PgDn */
0x52, /* 156 KP_Ins */
0x53, /* 157 KP_Del */
};
static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev)
{
int keycode;
keycode = ev->keysym.scancode;
if (keycode < 9) {
keycode = 0;
} else if (keycode < 97) {
keycode -= 8; /* just an offset */
} else if (keycode < 158) {
/* use conversion table */
keycode = x_keycode_to_pc_keycode[keycode - 97];
} else {
keycode = 0;
}
return keycode;
}
#endif
static void reset_keys(void)
{
int i;
for(i = 0; i < 256; i++) {
if (modifiers_state[i]) {
if (i & 0x80)
kbd_put_keycode(0xe0);
kbd_put_keycode(i | 0x80);
modifiers_state[i] = 0;
}
}
}
static void sdl_process_key(SDL_KeyboardEvent *ev)
{
int keycode, v;
if (ev->keysym.sym == SDLK_PAUSE) {
/* specific case */
v = 0;
if (ev->type == SDL_KEYUP)
v |= 0x80;
kbd_put_keycode(0xe1);
kbd_put_keycode(0x1d | v);
kbd_put_keycode(0x45 | v);
return;
}
/* XXX: not portable, but avoids complicated mappings */
keycode = sdl_keyevent_to_keycode(ev);
switch(keycode) {
case 0x00:
/* sent when leaving window: reset the modifiers state */
reset_keys();
return;
case 0x2a: /* Left Shift */
case 0x36: /* Right Shift */
case 0x1d: /* Left CTRL */
case 0x9d: /* Right CTRL */
case 0x38: /* Left ALT */
case 0xb8: /* Right ALT */
if (ev->type == SDL_KEYUP)
modifiers_state[keycode] = 0;
else
modifiers_state[keycode] = 1;
break;
case 0x45: /* num lock */
case 0x3a: /* caps lock */
/* SDL does not send the key up event, so we generate it */
kbd_put_keycode(keycode);
kbd_put_keycode(keycode | 0x80);
return;
}
/* now send the key code */
if (keycode & 0x80)
kbd_put_keycode(0xe0);
if (ev->type == SDL_KEYUP)
kbd_put_keycode(keycode | 0x80);
else
kbd_put_keycode(keycode & 0x7f);
}
static void sdl_update_caption(void)
{
char buf[1024];
strcpy(buf, "QEMU");
if (!vm_running) {
strcat(buf, " [Stopped]");
}
if (gui_grab) {
strcat(buf, " - Press Ctrl-Alt to exit grab");
}
SDL_WM_SetCaption(buf, "QEMU");
}
static void sdl_grab_start(void)
{
SDL_ShowCursor(0);
SDL_WM_GrabInput(SDL_GRAB_ON);
/* dummy read to avoid moving the mouse */
SDL_GetRelativeMouseState(NULL, NULL);
gui_grab = 1;
sdl_update_caption();
}
static void sdl_grab_end(void)
{
SDL_WM_GrabInput(SDL_GRAB_OFF);
SDL_ShowCursor(1);
gui_grab = 0;
sdl_update_caption();
}
static void sdl_send_mouse_event(void)
{
int dx, dy, dz, state, buttons;
state = SDL_GetRelativeMouseState(&dx, &dy);
buttons = 0;
if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
buttons |= MOUSE_EVENT_LBUTTON;
if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
buttons |= MOUSE_EVENT_RBUTTON;
if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
buttons |= MOUSE_EVENT_MBUTTON;
/* XXX: test wheel */
dz = 0;
#ifdef SDL_BUTTON_WHEELUP
if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
dz--;
if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
dz++;
#endif
kbd_mouse_event(dx, dy, dz, buttons);
}
static void toggle_full_screen(DisplayState *ds)
{
gui_fullscreen = !gui_fullscreen;
sdl_resize(ds, screen->w, screen->h);
if (gui_fullscreen) {
gui_saved_grab = gui_grab;
sdl_grab_start();
} else {
if (!gui_saved_grab)
sdl_grab_end();
}
vga_invalidate_display();
vga_update_display();
}
static void sdl_refresh(DisplayState *ds)
{
SDL_Event ev1, *ev = &ev1;
int mod_state;
if (last_vm_running != vm_running) {
last_vm_running = vm_running;
sdl_update_caption();
}
if (is_active_console(vga_console))
vga_update_display();
while (SDL_PollEvent(ev)) {
switch (ev->type) {
case SDL_VIDEOEXPOSE:
sdl_update(ds, 0, 0, screen->w, screen->h);
break;
case SDL_KEYDOWN:
case SDL_KEYUP:
if (ev->type == SDL_KEYDOWN) {
mod_state = (SDL_GetModState() & gui_grab_code) ==
gui_grab_code;
gui_key_modifier_pressed = mod_state;
if (gui_key_modifier_pressed) {
int keycode;
keycode = sdl_keyevent_to_keycode(&ev->key);
switch(keycode) {
case 0x21: /* 'f' key on US keyboard */
toggle_full_screen(ds);
gui_keysym = 1;
break;
case 0x02 ... 0x0a: /* '1' to '9' keys */
console_select(keycode - 0x02);
if (is_active_console(vga_console)) {
/* tell the vga console to redisplay itself */
vga_invalidate_display();
} else {
/* display grab if going to a text console */
if (gui_grab)
sdl_grab_end();
}
gui_keysym = 1;
break;
default:
break;
}
} else if (!is_active_console(vga_console)) {
int keysym;
keysym = 0;
if (ev->key.keysym.mod & (KMOD_LCTRL | KMOD_RCTRL)) {
switch(ev->key.keysym.sym) {
case SDLK_UP: keysym = QEMU_KEY_CTRL_UP; break;
case SDLK_DOWN: keysym = QEMU_KEY_CTRL_DOWN; break;
case SDLK_LEFT: keysym = QEMU_KEY_CTRL_LEFT; break;
case SDLK_RIGHT: keysym = QEMU_KEY_CTRL_RIGHT; break;
case SDLK_HOME: keysym = QEMU_KEY_CTRL_HOME; break;
case SDLK_END: keysym = QEMU_KEY_CTRL_END; break;
case SDLK_PAGEUP: keysym = QEMU_KEY_CTRL_PAGEUP; break;
case SDLK_PAGEDOWN: keysym = QEMU_KEY_CTRL_PAGEDOWN; break;
default: break;
}
} else {
switch(ev->key.keysym.sym) {
case SDLK_UP: keysym = QEMU_KEY_UP; break;
case SDLK_DOWN: keysym = QEMU_KEY_DOWN; break;
case SDLK_LEFT: keysym = QEMU_KEY_LEFT; break;
case SDLK_RIGHT: keysym = QEMU_KEY_RIGHT; break;
case SDLK_HOME: keysym = QEMU_KEY_HOME; break;
case SDLK_END: keysym = QEMU_KEY_END; break;
case SDLK_PAGEUP: keysym = QEMU_KEY_PAGEUP; break;
case SDLK_PAGEDOWN: keysym = QEMU_KEY_PAGEDOWN; break;
case SDLK_BACKSPACE: keysym = QEMU_KEY_BACKSPACE; break; case SDLK_DELETE: keysym = QEMU_KEY_DELETE; break;
default: break;
}
}
if (keysym) {
kbd_put_keysym(keysym);
} else if (ev->key.keysym.unicode != 0) {
kbd_put_keysym(ev->key.keysym.unicode);
}
}
} else if (ev->type == SDL_KEYUP) {
mod_state = (SDL_GetModState() & gui_grab_code);
if (!mod_state) {
if (gui_key_modifier_pressed) {
if (gui_keysym == 0) {
/* exit/enter grab if pressing Ctrl-Alt */
if (!gui_grab)
sdl_grab_start();
else
sdl_grab_end();
/* SDL does not send back all the
modifiers key, so we must correct it */
reset_keys();
break;
}
gui_key_modifier_pressed = 0;
gui_keysym = 0;
}
}
}
if (is_active_console(vga_console))
sdl_process_key(&ev->key);
break;
case SDL_QUIT:
qemu_system_shutdown_request();
break;
case SDL_MOUSEMOTION:
if (gui_grab) {
sdl_send_mouse_event();
}
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
{
SDL_MouseButtonEvent *bev = &ev->button;
if (!gui_grab) {
if (ev->type == SDL_MOUSEBUTTONDOWN &&
(bev->state & SDL_BUTTON_LMASK)) {
/* start grabbing all events */
sdl_grab_start();
}
} else {
sdl_send_mouse_event();
}
}
break;
case SDL_ACTIVEEVENT:
if (gui_grab && (ev->active.gain & SDL_ACTIVEEVENTMASK) == 0 &&
!gui_fullscreen_initial_grab) {
sdl_grab_end();
}
break;
default:
break;
}
}
}
static void sdl_cleanup(void)
{
SDL_Quit();
}
void sdl_display_init(DisplayState *ds, int full_screen)
{
int flags;
flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
if (SDL_Init (flags)) {
fprintf(stderr, "Could not initialize SDL - exiting\n");
exit(1);
}
#ifndef _WIN32
/* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
#endif
ds->dpy_update = sdl_update;
ds->dpy_resize = sdl_resize;
ds->dpy_refresh = sdl_refresh;
sdl_resize(ds, 640, 400);
sdl_update_caption();
SDL_EnableKeyRepeat(250, 50);
SDL_EnableUNICODE(1);
gui_grab = 0;
atexit(sdl_cleanup);
if (full_screen) {
gui_fullscreen = 1;
gui_fullscreen_initial_grab = 1;
sdl_grab_start();
}
}
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