ui: move all ui components in ui/

Move sdl, vnc, curses and cocoa UI into ui/ to cleanup
the root directory. Also remove some unnecessary explicit
targets from Makefile.

aliguori: fix build when srcdir != objdir

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 879 insertions, 0 deletions

diff --git a/ui/sdl.c b/ui/sdl.c
new file mode 100644
index 0000000000..0072680f4c
--- /dev/null
+++ b/ui/sdl.c
@@ -0,0 +1,879 @@
+/*
+ * 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 <SDL.h>
+#include <SDL_syswm.h>
+
+#ifndef _WIN32
+#include <signal.h>
+#endif
+
+#include "qemu-common.h"
+#include "console.h"
+#include "sysemu.h"
+#include "x_keymap.h"
+#include "sdl_zoom.h"
+
+static DisplayChangeListener *dcl;
+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 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_fullscreen_initial_grab;
+static int gui_grab_code = KMOD_LALT | KMOD_LCTRL;
+static uint8_t modifiers_state[256];
+static int width, height;
+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 uint8_t allocator;
+static SDL_PixelFormat host_format;
+static int scaling_active = 0;
+static Notifier mouse_mode_notifier;
+
+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_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 sdl_setdata(DisplayState *ds)
+{
+    SDL_Rect rec;
+    rec.x = 0;
+    rec.y = 0;
+    rec.w = real_screen->w;
+    rec.h = real_screen->h;
+
+    if (guest_screen != NULL) SDL_FreeSurface(guest_screen);
+
+    guest_screen = SDL_CreateRGBSurfaceFrom(ds_get_data(ds), ds_get_width(ds), ds_get_height(ds),
+                                            ds_get_bits_per_pixel(ds), ds_get_linesize(ds),
+                                            ds->surface->pf.rmask, ds->surface->pf.gmask,
+                                            ds->surface->pf.bmask, ds->surface->pf.amask);
+}
+
+static void do_sdl_resize(int new_width, int new_height, int bpp)
+{
+    int flags;
+
+    //    printf("resizing to %d %d\n", w, h);
+
+    flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL|SDL_RESIZABLE;
+    if (gui_fullscreen)
+        flags |= SDL_FULLSCREEN;
+    if (gui_noframe)
+        flags |= SDL_NOFRAME;
+
+    width = new_width;
+    height = new_height;
+    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_resize(DisplayState *ds)
+{
+    if  (!allocator) {
+        if (!scaling_active)
+            do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
+        else if (real_screen->format->BitsPerPixel != ds_get_bits_per_pixel(ds))
+            do_sdl_resize(real_screen->w, real_screen->h, ds_get_bits_per_pixel(ds));
+        sdl_setdata(ds);
+    } else {
+        if (guest_screen != NULL) {
+            SDL_FreeSurface(guest_screen);
+            guest_screen = NULL;
+        }
+    }
+}
+
+static PixelFormat sdl_to_qemu_pixelformat(SDL_PixelFormat *sdl_pf)
+{
+    PixelFormat qemu_pf;
+
+    memset(&qemu_pf, 0x00, sizeof(PixelFormat));
+
+    qemu_pf.bits_per_pixel = sdl_pf->BitsPerPixel;
+    qemu_pf.bytes_per_pixel = sdl_pf->BytesPerPixel;
+    qemu_pf.depth = (qemu_pf.bits_per_pixel) == 32 ? 24 : (qemu_pf.bits_per_pixel);
+
+    qemu_pf.rmask = sdl_pf->Rmask;
+    qemu_pf.gmask = sdl_pf->Gmask;
+    qemu_pf.bmask = sdl_pf->Bmask;
+    qemu_pf.amask = sdl_pf->Amask;
+
+    qemu_pf.rshift = sdl_pf->Rshift;
+    qemu_pf.gshift = sdl_pf->Gshift;
+    qemu_pf.bshift = sdl_pf->Bshift;
+    qemu_pf.ashift = sdl_pf->Ashift;
+
+    qemu_pf.rbits = 8 - sdl_pf->Rloss;
+    qemu_pf.gbits = 8 - sdl_pf->Gloss;
+    qemu_pf.bbits = 8 - sdl_pf->Bloss;
+    qemu_pf.abits = 8 - sdl_pf->Aloss;
+
+    qemu_pf.rmax = ((1 << qemu_pf.rbits) - 1);
+    qemu_pf.gmax = ((1 << qemu_pf.gbits) - 1);
+    qemu_pf.bmax = ((1 << qemu_pf.bbits) - 1);
+    qemu_pf.amax = ((1 << qemu_pf.abits) - 1);
+
+    return qemu_pf;
+}
+
+static DisplaySurface* sdl_create_displaysurface(int width, int height)
+{
+    DisplaySurface *surface = (DisplaySurface*) qemu_mallocz(sizeof(DisplaySurface));
+    if (surface == NULL) {
+        fprintf(stderr, "sdl_create_displaysurface: malloc failed\n");
+        exit(1);
+    }
+
+    surface->width = width;
+    surface->height = height;
+    
+    if (scaling_active) {
+        if (host_format.BytesPerPixel != 2 && host_format.BytesPerPixel != 4) {
+            surface->linesize = width * 4;
+            surface->pf = qemu_default_pixelformat(32);
+        } else {
+            surface->linesize = width * host_format.BytesPerPixel;
+            surface->pf = sdl_to_qemu_pixelformat(&host_format);
+        }
+#ifdef HOST_WORDS_BIGENDIAN
+        surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
+#else
+        surface->flags = QEMU_ALLOCATED_FLAG;
+#endif
+        surface->data = (uint8_t*) qemu_mallocz(surface->linesize * surface->height);
+
+        return surface;
+    }
+
+    if (host_format.BitsPerPixel == 16)
+        do_sdl_resize(width, height, 16);
+    else
+        do_sdl_resize(width, height, 32);
+
+    surface->pf = sdl_to_qemu_pixelformat(real_screen->format);
+    surface->linesize = real_screen->pitch;
+    surface->data = real_screen->pixels;
+
+#ifdef HOST_WORDS_BIGENDIAN
+    surface->flags = QEMU_REALPIXELS_FLAG | QEMU_BIG_ENDIAN_FLAG;
+#else
+    surface->flags = QEMU_REALPIXELS_FLAG;
+#endif
+    allocator = 1;
+
+    return surface;
+}
+
+static void sdl_free_displaysurface(DisplaySurface *surface)
+{
+    allocator = 0;
+    if (surface == NULL)
+        return;
+
+    if (surface->flags & QEMU_ALLOCATED_FLAG)
+        qemu_free(surface->data);
+    qemu_free(surface);
+}
+
+static DisplaySurface* sdl_resize_displaysurface(DisplaySurface *surface, int width, int height)
+{
+    sdl_free_displaysurface(surface);
+    return sdl_create_displaysurface(width, height);
+}
+
+/* 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;
+    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;
+    }
+
+    /* 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 (!vm_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()) {
+        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 (guest_cursor) {
+        SDL_SetCursor(guest_sprite);
+        if (!kbd_mouse_is_absolute() && !absolute_enabled)
+            SDL_WarpMouse(guest_x, guest_y);
+    } else
+        sdl_hide_cursor();
+
+    if (SDL_WM_GrabInput(SDL_GRAB_ON) == SDL_GRAB_ON) {
+        gui_grab = 1;
+        sdl_update_caption();
+    } else
+        sdl_show_cursor();
+}
+
+static void sdl_grab_end(void)
+{
+    SDL_WM_GrabInput(SDL_GRAB_OFF);
+    gui_grab = 0;
+    sdl_show_cursor();
+    sdl_update_caption();
+}
+
+static void sdl_mouse_mode_change(Notifier *notify)
+{
+    if (kbd_mouse_is_absolute()) {
+        if (!absolute_enabled) {
+            sdl_hide_cursor();
+            if (gui_grab) {
+                sdl_grab_end();
+            }
+            absolute_enabled = 1;
+        }
+    } else if (absolute_enabled) {
+	sdl_show_cursor();
+	absolute_enabled = 0;
+    }
+}
+
+static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state)
+{
+    int buttons;
+    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 / (width - 1);
+       dy = y * 0x7FFF / (height - 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 toggle_full_screen(DisplayState *ds)
+{
+    gui_fullscreen = !gui_fullscreen;
+    do_sdl_resize(real_screen->w, real_screen->h, real_screen->format->BitsPerPixel);
+    if (gui_fullscreen) {
+        scaling_active = 0;
+        gui_saved_grab = gui_grab;
+        sdl_grab_start();
+    } else {
+        if (!gui_saved_grab)
+            sdl_grab_end();
+    }
+    vga_hw_invalidate();
+    vga_hw_update();
+}
+
+static void sdl_refresh(DisplayState *ds)
+{
+    SDL_Event ev1, *ev = &ev1;
+    int mod_state;
+    int buttonstate = SDL_GetMouseState(NULL, NULL);
+
+    if (last_vm_running != vm_running) {
+        last_vm_running = vm_running;
+        sdl_update_caption();
+    }
+
+    vga_hw_update();
+    SDL_EnableUNICODE(!is_graphic_console());
+
+    while (SDL_PollEvent(ev)) {
+        switch (ev->type) {
+        case SDL_VIDEOEXPOSE:
+            sdl_update(ds, 0, 0, real_screen->w, real_screen->h);
+            break;
+        case SDL_KEYDOWN:
+        case SDL_KEYUP:
+            if (ev->type == SDL_KEYDOWN) {
+                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) {
+                    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 0x16: /* 'u' key on US keyboard */
+                        scaling_active = 0;
+                        sdl_resize(ds);
+                        vga_hw_invalidate();
+                        vga_hw_update();
+                        break;
+                    case 0x02 ... 0x0a: /* '1' to '9' keys */
+                        /* Reset the modifiers sent to the current console */
+                        reset_keys();
+                        console_select(keycode - 0x02);
+                        if (!is_graphic_console()) {
+                            /* display grab if going to a text console */
+                            if (gui_grab)
+                                sdl_grab_end();
+                        }
+                        gui_keysym = 1;
+                        break;
+                    default:
+                        break;
+                    }
+                } else if (!is_graphic_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) {
+                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) {
+                    if (gui_key_modifier_pressed) {
+                        gui_key_modifier_pressed = 0;
+                        if (gui_keysym == 0) {
+                            /* exit/enter grab if pressing Ctrl-Alt */
+                            if (!gui_grab) {
+                                /* if the application is not active,
+                                   do not try to enter grab state. It
+                                   prevents
+                                   'SDL_WM_GrabInput(SDL_GRAB_ON)'
+                                   from blocking all the application
+                                   (SDL bug). */
+                                if (SDL_GetAppState() & SDL_APPACTIVE)
+                                    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_keysym = 0;
+                    }
+                }
+            }
+            if (is_graphic_console() && !gui_keysym)
+                sdl_process_key(&ev->key);
+            break;
+        case SDL_QUIT:
+            if (!no_quit)
+                qemu_system_shutdown_request();
+            break;
+        case SDL_MOUSEMOTION:
+            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);
+            }
+            break;
+        case SDL_MOUSEBUTTONDOWN:
+        case SDL_MOUSEBUTTONUP:
+            {
+                SDL_MouseButtonEvent *bev = &ev->button;
+                if (!gui_grab && !kbd_mouse_is_absolute()) {
+                    if (ev->type == SDL_MOUSEBUTTONDOWN &&
+                        (bev->button == SDL_BUTTON_LEFT)) {
+                        /* start grabbing all events */
+                        sdl_grab_start();
+                    }
+                } else {
+                    int dz;
+                    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);
+                }
+            }
+            break;
+        case SDL_ACTIVEEVENT:
+            if (gui_grab && ev->active.state == SDL_APPINPUTFOCUS &&
+                !ev->active.gain && !gui_fullscreen_initial_grab) {
+                sdl_grab_end();
+            }
+            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;
+                }
+            }
+            break;
+	case SDL_VIDEORESIZE:
+        {
+	    SDL_ResizeEvent *rev = &ev->resize;
+            int bpp = real_screen->format->BitsPerPixel;
+            if (bpp != 16 && bpp != 32)
+                bpp = 32;
+            do_sdl_resize(rev->w, rev->h, bpp);
+            scaling_active = 1;
+            if (!is_buffer_shared(ds->surface)) {
+                ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds), ds_get_height(ds));
+                dpy_resize(ds);
+            }
+            vga_hw_invalidate();
+            vga_hw_update();
+            break;
+        }
+        default:
+            break;
+        }
+    }
+}
+
+static void sdl_fill(DisplayState *ds, int x, int y, int w, int h, uint32_t c)
+{
+    SDL_Rect dst = { x, y, w, h };
+    SDL_FillRect(real_screen, &dst, c);
+}
+
+static void sdl_mouse_warp(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(QEMUCursor *c)
+{
+    uint8_t *image, *mask;
+    int bpl;
+
+    if (guest_sprite)
+        SDL_FreeCursor(guest_sprite);
+
+    bpl = cursor_get_mono_bpl(c);
+    image = qemu_mallocz(bpl * c->height);
+    mask  = qemu_mallocz(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);
+    qemu_free(image);
+    qemu_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);
+}
+
+void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
+{
+    int flags;
+    uint8_t data = 0;
+    DisplayAllocator *da;
+    const SDL_VideoInfo *vi;
+
+#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);
+    }
+
+    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);
+
+    dcl = qemu_mallocz(sizeof(DisplayChangeListener));
+    dcl->dpy_update = sdl_update;
+    dcl->dpy_resize = sdl_resize;
+    dcl->dpy_refresh = sdl_refresh;
+    dcl->dpy_setdata = sdl_setdata;
+    dcl->dpy_fill = sdl_fill;
+    ds->mouse_set = sdl_mouse_warp;
+    ds->cursor_define = sdl_mouse_define;
+    register_displaychangelistener(ds, dcl);
+
+    da = qemu_mallocz(sizeof(DisplayAllocator));
+    da->create_displaysurface = sdl_create_displaysurface;
+    da->resize_displaysurface = sdl_resize_displaysurface;
+    da->free_displaysurface = sdl_free_displaysurface;
+    if (register_displayallocator(ds, da) == da) {
+        dpy_resize(ds);
+    }
+
+    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);
+    if (full_screen) {
+        gui_fullscreen = 1;
+        gui_fullscreen_initial_grab = 1;
+        sdl_grab_start();
+    }
+}