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sdl: Restore scaling mode on return from full screen

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Save the scaling mode and its geometry when going full screen, restore
it when returning to windowed mode.

CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Jan Kiszka 2011-07-30 11:39:09 +02:00 committed by Anthony Liguori
parent 2a8ad7da54
commit f9977897ee
1 changed files with 33 additions and 15 deletions
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48
ui/sdl.c
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@ -39,6 +39,9 @@ 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;
@ -526,16 +529,42 @@ static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state
kbd_mouse_event(dx, dy, dz, buttons);
}
static void sdl_scale(DisplayState *ds, 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;
if (!is_buffer_shared(ds->surface)) {
ds->surface = qemu_resize_displaysurface(ds, ds_get_width(ds),
ds_get_height(ds));
dpy_resize(ds);
}
}
static void toggle_full_screen(DisplayState *ds)
{
gui_fullscreen = !gui_fullscreen;
do_sdl_resize(ds_get_width(ds), ds_get_height(ds),
ds_get_bits_per_pixel(ds));
if (gui_fullscreen) {
gui_saved_width = real_screen->w;
gui_saved_height = real_screen->h;
gui_saved_scaling = scaling_active;
do_sdl_resize(ds_get_width(ds), ds_get_height(ds),
ds_get_bits_per_pixel(ds));
scaling_active = 0;
gui_saved_grab = gui_grab;
sdl_grab_start();
} else {
if (gui_saved_scaling) {
sdl_scale(ds, gui_saved_width, gui_saved_height);
} else {
do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
}
if (!gui_saved_grab)
sdl_grab_end();
}
@ -737,22 +766,11 @@ static void sdl_refresh(DisplayState *ds)
}
}
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);
}
case SDL_VIDEORESIZE:
sdl_scale(ds, ev->resize.w, ev->resize.h);
vga_hw_invalidate();
vga_hw_update();
break;
}
default:
break;
}