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Diffstat (limited to 'sdl.c')
-rw-r--r--sdl.c131
1 files changed, 118 insertions, 13 deletions
diff --git a/sdl.c b/sdl.c
index a748426..843a6fc 100644
--- a/sdl.c
+++ b/sdl.c
@@ -53,17 +53,20 @@ static int absolute_enabled = 0;
static int guest_cursor = 0;
static int guest_x, guest_y;
static SDL_Cursor *guest_sprite = 0;
+static uint8_t allocator;
+static uint8_t hostbpp;
static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
{
- SDL_Rect rec;
- rec.x = x;
- rec.y = y;
- rec.w = w;
- rec.h = h;
// printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
-
- SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
+ if (guest_screen) {
+ SDL_Rect rec;
+ rec.x = x;
+ rec.y = y;
+ rec.w = w;
+ rec.h = h;
+ SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
+ }
SDL_UpdateRect(real_screen, x, y, w, h);
}
@@ -83,7 +86,7 @@ static void sdl_setdata(DisplayState *ds)
ds->surface->pf.bmask, ds->surface->pf.amask);
}
-static void sdl_resize(DisplayState *ds)
+static void do_sdl_resize(int width, int height, int bpp)
{
int flags;
@@ -95,15 +98,101 @@ static void sdl_resize(DisplayState *ds)
if (gui_noframe)
flags |= SDL_NOFRAME;
- width = ds_get_width(ds);
- height = ds_get_height(ds);
- real_screen = SDL_SetVideoMode(width, height, 0, flags);
+ real_screen = SDL_SetVideoMode(width, height, bpp, flags);
if (!real_screen) {
fprintf(stderr, "Could not open SDL display\n");
exit(1);
}
+}
+
+static void sdl_resize(DisplayState *ds)
+{
+ if (!allocator) {
+ do_sdl_resize(ds_get_width(ds), ds_get_height(ds), 0);
+ 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;
- sdl_setdata(ds);
+ if (hostbpp == 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 WORDS_BIGENDIAN
+ surface->flags = QEMU_ALLOCATED_FLAG | QEMU_BIG_ENDIAN_FLAG;
+#else
+ surface->flags = QEMU_ALLOCATED_FLAG;
+#endif
+ allocator = 1;
+
+ return surface;
+}
+
+static void sdl_free_displaysurface(DisplaySurface *surface)
+{
+ allocator = 0;
+ if (surface == NULL)
+ return;
+ 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 */
@@ -391,7 +480,7 @@ static void sdl_send_mouse_event(int dx, int dy, int dz, int x, int y, int state
static void toggle_full_screen(DisplayState *ds)
{
gui_fullscreen = !gui_fullscreen;
- sdl_resize(ds);
+ do_sdl_resize(real_screen->w, real_screen->h, real_screen->format->BitsPerPixel);
if (gui_fullscreen) {
gui_saved_grab = gui_grab;
sdl_grab_start();
@@ -669,6 +758,8 @@ 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 */
@@ -689,6 +780,8 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
fprintf(stderr, "Could not initialize SDL - exiting\n");
exit(1);
}
+ vi = SDL_GetVideoInfo();
+ hostbpp = vi->vfmt->BitsPerPixel;
dcl = qemu_mallocz(sizeof(DisplayChangeListener));
dcl->dpy_update = sdl_update;
@@ -700,6 +793,18 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
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) {
+ DisplaySurface *surf;
+ surf = sdl_create_displaysurface(ds_get_width(ds), ds_get_height(ds));
+ defaultallocator_free_displaysurface(ds->surface);
+ ds->surface = surf;
+ dpy_resize(ds);
+ }
+
sdl_update_caption();
SDL_EnableKeyRepeat(250, 50);
gui_grab = 0;