/* * 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. */ /* Avoid compiler warning because macro is redefined in SDL_syswm.h. */ #undef WIN32_LEAN_AND_MEAN #include <SDL.h> #include <SDL_syswm.h> #include "qemu-common.h" #include "ui/console.h" #include "sysemu/sysemu.h" #include "x_keymap.h" #include "sdl_zoom.h" static DisplayChangeListener *dcl; static DisplaySurface *surface; static SDL_Surface *real_screen; static SDL_Surface *guest_screen = NULL; static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ static int last_vm_running; static bool gui_saved_scaling; static int gui_saved_width; static int gui_saved_height; static int gui_saved_grab; static int gui_fullscreen; static int gui_noframe; static int gui_key_modifier_pressed; static int gui_keysym; static int gui_grab_code = KMOD_LALT | KMOD_LCTRL; static uint8_t modifiers_state[256]; static SDL_Cursor *sdl_cursor_normal; static SDL_Cursor *sdl_cursor_hidden; static int absolute_enabled = 0; static int guest_cursor = 0; static int guest_x, guest_y; static SDL_Cursor *guest_sprite = NULL; static SDL_PixelFormat host_format; static int scaling_active = 0; static Notifier mouse_mode_notifier; static void sdl_update(DisplayChangeListener *dcl, int x, int y, int w, int h) { // printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h); SDL_Rect rec; rec.x = x; rec.y = y; rec.w = w; rec.h = h; if (guest_screen) { if (!scaling_active) { SDL_BlitSurface(guest_screen, &rec, real_screen, &rec); } else { if (sdl_zoom_blit(guest_screen, real_screen, SMOOTHING_ON, &rec) < 0) { fprintf(stderr, "Zoom blit failed\n"); exit(1); } } } SDL_UpdateRect(real_screen, rec.x, rec.y, rec.w, rec.h); } static void do_sdl_resize(int width, int height, int bpp) { int flags; // printf("resizing to %d %d\n", w, h); flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL; if (gui_fullscreen) { flags |= SDL_FULLSCREEN; } else { flags |= SDL_RESIZABLE; } if (gui_noframe) flags |= SDL_NOFRAME; real_screen = SDL_SetVideoMode(width, height, bpp, flags); if (!real_screen) { fprintf(stderr, "Could not open SDL display (%dx%dx%d): %s\n", width, height, bpp, SDL_GetError()); exit(1); } } static void sdl_switch(DisplayChangeListener *dcl, DisplaySurface *new_surface) { /* temporary hack: allows to call sdl_switch to handle scaling changes */ if (new_surface) { surface = new_surface; } if (!scaling_active) { do_sdl_resize(surface_width(surface), surface_height(surface), 0); } else if (real_screen->format->BitsPerPixel != surface_bits_per_pixel(surface)) { do_sdl_resize(real_screen->w, real_screen->h, surface_bits_per_pixel(surface)); } if (guest_screen != NULL) { SDL_FreeSurface(guest_screen); } guest_screen = SDL_CreateRGBSurfaceFrom (surface_data(surface), surface_width(surface), surface_height(surface), surface_bits_per_pixel(surface), surface_stride(surface), surface->pf.rmask, surface->pf.gmask, surface->pf.bmask, surface->pf.amask); } /* generic keyboard conversion */ #include "sdl_keysym.h" static kbd_layout_t *kbd_layout = NULL; static uint8_t sdl_keyevent_to_keycode_generic(const SDL_KeyboardEvent *ev) { int keysym; /* workaround for X11+SDL bug with AltGR */ keysym = ev->keysym.sym; if (keysym == 0 && ev->keysym.scancode == 113) keysym = SDLK_MODE; /* For Japanese key '\' and '|' */ if (keysym == 92 && ev->keysym.scancode == 133) { keysym = 0xa5; } return keysym2scancode(kbd_layout, keysym) & SCANCODE_KEYMASK; } /* specific keyboard conversions from scan codes */ #if defined(_WIN32) static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev) { return ev->keysym.scancode; } #else #if defined(SDL_VIDEO_DRIVER_X11) #include <X11/XKBlib.h> static int check_for_evdev(void) { SDL_SysWMinfo info; XkbDescPtr desc = NULL; int has_evdev = 0; char *keycodes = NULL; SDL_VERSION(&info.version); if (!SDL_GetWMInfo(&info)) { return 0; } desc = XkbGetKeyboard(info.info.x11.display, XkbGBN_AllComponentsMask, XkbUseCoreKbd); if (desc && desc->names) { keycodes = XGetAtomName(info.info.x11.display, desc->names->keycodes); if (keycodes == NULL) { fprintf(stderr, "could not lookup keycode name\n"); } else if (strstart(keycodes, "evdev", NULL)) { has_evdev = 1; } else if (!strstart(keycodes, "xfree86", NULL)) { fprintf(stderr, "unknown keycodes `%s', please report to " "qemu-devel@nongnu.org\n", keycodes); } } if (desc) { XkbFreeKeyboard(desc, XkbGBN_AllComponentsMask, True); } if (keycodes) { XFree(keycodes); } return has_evdev; } #else static int check_for_evdev(void) { return 0; } #endif static uint8_t sdl_keyevent_to_keycode(const SDL_KeyboardEvent *ev) { int keycode; static int has_evdev = -1; if (has_evdev == -1) has_evdev = check_for_evdev(); 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 */ if (has_evdev) keycode = translate_evdev_keycode(keycode - 97); else keycode = translate_xfree86_keycode(keycode - 97); } else if (keycode == 208) { /* Hiragana_Katakana */ keycode = 0x70; } else if (keycode == 211) { /* backslash */ keycode = 0x73; } 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 & SCANCODE_GREY) kbd_put_keycode(SCANCODE_EMUL0); kbd_put_keycode(i | SCANCODE_UP); 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 |= SCANCODE_UP; kbd_put_keycode(0xe1); kbd_put_keycode(0x1d | v); kbd_put_keycode(0x45 | v); return; } if (kbd_layout) { keycode = sdl_keyevent_to_keycode_generic(ev); } else { 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; #define QEMU_SDL_VERSION ((SDL_MAJOR_VERSION << 8) + SDL_MINOR_VERSION) #if QEMU_SDL_VERSION < 0x102 || QEMU_SDL_VERSION == 0x102 && SDL_PATCHLEVEL < 14 /* SDL versions before 1.2.14 don't support key up for caps/num lock. */ 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 | SCANCODE_UP); return; #endif } /* now send the key code */ if (keycode & SCANCODE_GREY) kbd_put_keycode(SCANCODE_EMUL0); if (ev->type == SDL_KEYUP) kbd_put_keycode(keycode | SCANCODE_UP); else kbd_put_keycode(keycode & SCANCODE_KEYCODEMASK); } static void sdl_update_caption(void) { char win_title[1024]; char icon_title[1024]; const char *status = ""; if (!runstate_is_running()) status = " [Stopped]"; else if (gui_grab) { if (alt_grab) status = " - Press Ctrl-Alt-Shift to exit mouse grab"; else if (ctrl_grab) status = " - Press Right-Ctrl to exit mouse grab"; else status = " - Press Ctrl-Alt to exit mouse grab"; } if (qemu_name) { snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status); snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name); } else { snprintf(win_title, sizeof(win_title), "QEMU%s", status); snprintf(icon_title, sizeof(icon_title), "QEMU"); } SDL_WM_SetCaption(win_title, icon_title); } static void sdl_hide_cursor(void) { if (!cursor_hide) return; if (kbd_mouse_is_absolute()) { SDL_ShowCursor(1); SDL_SetCursor(sdl_cursor_hidden); } else { SDL_ShowCursor(0); } } static void sdl_show_cursor(void) { if (!cursor_hide) return; if (!kbd_mouse_is_absolute() || !is_graphic_console()) { SDL_ShowCursor(1); if (guest_cursor && (gui_grab || kbd_mouse_is_absolute() || absolute_enabled)) SDL_SetCursor(guest_sprite); else SDL_SetCursor(sdl_cursor_normal); } } static void sdl_grab_start(void) { /* * If the application is not active, do not try to enter grab state. This * prevents 'SDL_WM_GrabInput(SDL_GRAB_ON)' from blocking all the * application (SDL bug). */ if (!(SDL_GetAppState() & SDL_APPINPUTFOCUS)) { return; } if (guest_cursor) { SDL_SetCursor(guest_sprite); if (!kbd_mouse_is_absolute() && !absolute_enabled) SDL_WarpMouse(guest_x, guest_y); } else sdl_hide_cursor(); SDL_WM_GrabInput(SDL_GRAB_ON); gui_grab = 1; sdl_update_caption(); } static void sdl_grab_end(void) { SDL_WM_GrabInput(SDL_GRAB_OFF); gui_grab = 0; sdl_show_cursor(); sdl_update_caption(); } static void absolute_mouse_grab(void) { int mouse_x, mouse_y; SDL_GetMouseState(&mouse_x, &mouse_y); if (mouse_x > 0 && mouse_x < real_screen->w - 1 && mouse_y > 0 && mouse_y < real_screen->h - 1) { sdl_grab_start(); } } static void sdl_mouse_mode_change(Notifier *notify, void *data) { if (kbd_mouse_is_absolute()) { if (!absolute_enabled) { absolute_enabled = 1; if (is_graphic_console()) { absolute_mouse_grab(); } } } else if (absolute_enabled) { if (!gui_fullscreen) { sdl_grab_end(); } absolute_enabled = 0; } } static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state) { int 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; } if (kbd_mouse_is_absolute()) { dx = x * 0x7FFF / (real_screen->w - 1); dy = y * 0x7FFF / (real_screen->h - 1); } else if (guest_cursor) { x -= guest_x; y -= guest_y; guest_x += x; guest_y += y; dx = x; dy = y; } kbd_mouse_event(dx, dy, dz, buttons); } static void sdl_scale(int width, int height) { int bpp = real_screen->format->BitsPerPixel; if (bpp != 16 && bpp != 32) { bpp = 32; } do_sdl_resize(width, height, bpp); scaling_active = 1; } static void toggle_full_screen(void) { int width = surface_width(surface); int height = surface_height(surface); int bpp = surface_bits_per_pixel(surface); gui_fullscreen = !gui_fullscreen; if (gui_fullscreen) { gui_saved_width = real_screen->w; gui_saved_height = real_screen->h; gui_saved_scaling = scaling_active; do_sdl_resize(width, height, bpp); scaling_active = 0; gui_saved_grab = gui_grab; sdl_grab_start(); } else { if (gui_saved_scaling) { sdl_scale(gui_saved_width, gui_saved_height); } else { do_sdl_resize(width, height, 0); } if (!gui_saved_grab || !is_graphic_console()) { sdl_grab_end(); } } vga_hw_invalidate(); vga_hw_update(); } static void handle_keydown(SDL_Event *ev) { int mod_state; int keycode; if (alt_grab) { mod_state = (SDL_GetModState() & (gui_grab_code | KMOD_LSHIFT)) == (gui_grab_code | KMOD_LSHIFT); } else if (ctrl_grab) { mod_state = (SDL_GetModState() & KMOD_RCTRL) == KMOD_RCTRL; } else { mod_state = (SDL_GetModState() & gui_grab_code) == gui_grab_code; } gui_key_modifier_pressed = mod_state; if (gui_key_modifier_pressed) { keycode = sdl_keyevent_to_keycode(&ev->key); switch (keycode) { case 0x21: /* 'f' key on US keyboard */ toggle_full_screen(); gui_keysym = 1; break; case 0x16: /* 'u' key on US keyboard */ if (scaling_active) { scaling_active = 0; sdl_switch(dcl, NULL); vga_hw_invalidate(); vga_hw_update(); } gui_keysym = 1; break; case 0x02 ... 0x0a: /* '1' to '9' keys */ /* Reset the modifiers sent to the current console */ reset_keys(); console_select(keycode - 0x02); gui_keysym = 1; if (gui_fullscreen) { break; } if (!is_graphic_console()) { /* release grab if going to a text console */ if (gui_grab) { sdl_grab_end(); } else if (absolute_enabled) { sdl_show_cursor(); } } else if (absolute_enabled) { sdl_hide_cursor(); absolute_mouse_grab(); } break; case 0x1b: /* '+' */ case 0x35: /* '-' */ if (!gui_fullscreen) { int width = MAX(real_screen->w + (keycode == 0x1b ? 50 : -50), 160); int height = (surface_height(surface) * width) / surface_width(surface); sdl_scale(width, height); vga_hw_invalidate(); vga_hw_update(); gui_keysym = 1; } default: break; } } else if (!is_graphic_console()) { int 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); } } if (is_graphic_console() && !gui_keysym) { sdl_process_key(&ev->key); } } static void handle_keyup(SDL_Event *ev) { int mod_state; if (!alt_grab) { mod_state = (ev->key.keysym.mod & gui_grab_code); } else { mod_state = (ev->key.keysym.mod & (gui_grab_code | KMOD_LSHIFT)); } if (!mod_state && gui_key_modifier_pressed) { gui_key_modifier_pressed = 0; if (gui_keysym == 0) { /* exit/enter grab if pressing Ctrl-Alt */ if (!gui_grab) { if (is_graphic_console()) { sdl_grab_start(); } } else if (!gui_fullscreen) { sdl_grab_end(); } /* SDL does not send back all the modifiers key, so we must * correct it. */ reset_keys(); return; } gui_keysym = 0; } if (is_graphic_console() && !gui_keysym) { sdl_process_key(&ev->key); } } static void handle_mousemotion(SDL_Event *ev) { int max_x, max_y; if (is_graphic_console() && (kbd_mouse_is_absolute() || absolute_enabled)) { max_x = real_screen->w - 1; max_y = real_screen->h - 1; if (gui_grab && (ev->motion.x == 0 || ev->motion.y == 0 || ev->motion.x == max_x || ev->motion.y == max_y)) { sdl_grab_end(); } if (!gui_grab && (ev->motion.x > 0 && ev->motion.x < max_x && ev->motion.y > 0 && ev->motion.y < max_y)) { sdl_grab_start(); } } if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) { sdl_send_mouse_event(ev->motion.xrel, ev->motion.yrel, 0, ev->motion.x, ev->motion.y, ev->motion.state); } } static void handle_mousebutton(SDL_Event *ev) { int buttonstate = SDL_GetMouseState(NULL, NULL); SDL_MouseButtonEvent *bev; int dz; if (!is_graphic_console()) { return; } bev = &ev->button; if (!gui_grab && !kbd_mouse_is_absolute()) { if (ev->type == SDL_MOUSEBUTTONUP && bev->button == SDL_BUTTON_LEFT) { /* start grabbing all events */ sdl_grab_start(); } } else { dz = 0; if (ev->type == SDL_MOUSEBUTTONDOWN) { buttonstate |= SDL_BUTTON(bev->button); } else { buttonstate &= ~SDL_BUTTON(bev->button); } #ifdef SDL_BUTTON_WHEELUP if (bev->button == SDL_BUTTON_WHEELUP && ev->type == SDL_MOUSEBUTTONDOWN) { dz = -1; } else if (bev->button == SDL_BUTTON_WHEELDOWN && ev->type == SDL_MOUSEBUTTONDOWN) { dz = 1; } #endif sdl_send_mouse_event(0, 0, dz, bev->x, bev->y, buttonstate); } } static void handle_activation(SDL_Event *ev) { #ifdef _WIN32 /* Disable grab if the window no longer has the focus * (Windows-only workaround) */ if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS && !ev->active.gain && !gui_fullscreen) { sdl_grab_end(); } #endif if (!gui_grab && ev->active.gain && is_graphic_console() && (kbd_mouse_is_absolute() || absolute_enabled)) { absolute_mouse_grab(); } if (ev->active.state & SDL_APPACTIVE) { if (ev->active.gain) { /* Back to default interval */ dcl->gui_timer_interval = 0; dcl->idle = 0; } else { /* Sleeping interval */ dcl->gui_timer_interval = 500; dcl->idle = 1; } } } static void sdl_refresh(DisplayChangeListener *dcl) { SDL_Event ev1, *ev = &ev1; if (last_vm_running != runstate_is_running()) { last_vm_running = runstate_is_running(); sdl_update_caption(); } vga_hw_update(); SDL_EnableUNICODE(!is_graphic_console()); while (SDL_PollEvent(ev)) { switch (ev->type) { case SDL_VIDEOEXPOSE: sdl_update(dcl, 0, 0, real_screen->w, real_screen->h); break; case SDL_KEYDOWN: handle_keydown(ev); break; case SDL_KEYUP: handle_keyup(ev); break; case SDL_QUIT: if (!no_quit) { no_shutdown = 0; qemu_system_shutdown_request(); } break; case SDL_MOUSEMOTION: handle_mousemotion(ev); break; case SDL_MOUSEBUTTONDOWN: case SDL_MOUSEBUTTONUP: handle_mousebutton(ev); break; case SDL_ACTIVEEVENT: handle_activation(ev); break; case SDL_VIDEORESIZE: sdl_scale(ev->resize.w, ev->resize.h); vga_hw_invalidate(); vga_hw_update(); break; default: break; } } } static void sdl_mouse_warp(DisplayChangeListener *dcl, int x, int y, int on) { if (on) { if (!guest_cursor) sdl_show_cursor(); if (gui_grab || kbd_mouse_is_absolute() || absolute_enabled) { SDL_SetCursor(guest_sprite); if (!kbd_mouse_is_absolute() && !absolute_enabled) SDL_WarpMouse(x, y); } } else if (gui_grab) sdl_hide_cursor(); guest_cursor = on; guest_x = x, guest_y = y; } static void sdl_mouse_define(DisplayChangeListener *dcl, QEMUCursor *c) { uint8_t *image, *mask; int bpl; if (guest_sprite) SDL_FreeCursor(guest_sprite); bpl = cursor_get_mono_bpl(c); image = g_malloc0(bpl * c->height); mask = g_malloc0(bpl * c->height); cursor_get_mono_image(c, 0x000000, image); cursor_get_mono_mask(c, 0, mask); guest_sprite = SDL_CreateCursor(image, mask, c->width, c->height, c->hot_x, c->hot_y); g_free(image); g_free(mask); if (guest_cursor && (gui_grab || kbd_mouse_is_absolute() || absolute_enabled)) SDL_SetCursor(guest_sprite); } static void sdl_cleanup(void) { if (guest_sprite) SDL_FreeCursor(guest_sprite); SDL_QuitSubSystem(SDL_INIT_VIDEO); } static const DisplayChangeListenerOps dcl_ops = { .dpy_name = "sdl", .dpy_gfx_update = sdl_update, .dpy_gfx_switch = sdl_switch, .dpy_refresh = sdl_refresh, .dpy_mouse_set = sdl_mouse_warp, .dpy_cursor_define = sdl_mouse_define, }; void sdl_display_init(DisplayState *ds, int full_screen, int no_frame) { int flags; uint8_t data = 0; const SDL_VideoInfo *vi; char *filename; #if defined(__APPLE__) /* always use generic keymaps */ if (!keyboard_layout) keyboard_layout = "en-us"; #endif if(keyboard_layout) { kbd_layout = init_keyboard_layout(name2keysym, keyboard_layout); if (!kbd_layout) exit(1); } if (no_frame) gui_noframe = 1; if (!full_screen) { setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0); } #ifdef __linux__ /* on Linux, SDL may use fbcon|directfb|svgalib when run without * accessible $DISPLAY to open X11 window. This is often the case * when qemu is run using sudo. But in this case, and when actually * run in X11 environment, SDL fights with X11 for the video card, * making current display unavailable, often until reboot. * So make x11 the default SDL video driver if this variable is unset. * This is a bit hackish but saves us from bigger problem. * Maybe it's a good idea to fix this in SDL instead. */ setenv("SDL_VIDEODRIVER", "x11", 0); #endif /* Enable normal up/down events for Caps-Lock and Num-Lock keys. * This requires SDL >= 1.2.14. */ setenv("SDL_DISABLE_LOCK_KEYS", "1", 1); flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; if (SDL_Init (flags)) { fprintf(stderr, "Could not initialize SDL(%s) - exiting\n", SDL_GetError()); exit(1); } vi = SDL_GetVideoInfo(); host_format = *(vi->vfmt); /* Load a 32x32x4 image. White pixels are transparent. */ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "qemu-icon.bmp"); if (filename) { SDL_Surface *image = SDL_LoadBMP(filename); if (image) { uint32_t colorkey = SDL_MapRGB(image->format, 255, 255, 255); SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey); SDL_WM_SetIcon(image, NULL); } g_free(filename); } if (full_screen) { gui_fullscreen = 1; sdl_grab_start(); } dcl = g_malloc0(sizeof(DisplayChangeListener)); dcl->ops = &dcl_ops; register_displaychangelistener(ds, dcl); mouse_mode_notifier.notify = sdl_mouse_mode_change; qemu_add_mouse_mode_change_notifier(&mouse_mode_notifier); sdl_update_caption(); SDL_EnableKeyRepeat(250, 50); gui_grab = 0; sdl_cursor_hidden = SDL_CreateCursor(&data, &data, 8, 1, 0, 0); sdl_cursor_normal = SDL_GetCursor(); atexit(sdl_cleanup); }