diff options
Diffstat (limited to 'sdl.c')
| -rw-r--r-- | sdl.c | 131 |
1 files changed, 118 insertions, 13 deletions
@@ -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; |