ui/sdl: Load optional QEMU icon

Load an optional QEMU icon file. If there is no icon file named
qemu.bmp in QEMU's default search path, QEMU will run with
the usual system default icon.

A matching icon file  will be loaded and used by X Windows managers
or MS Windows while a QEMU instance is running.

SDL requires icon files in 32x32x4 bmp format.

Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

diff --git a/ui/sdl.c b/ui/sdl.c
index c5bb0a3705dec6d94eed5899e2dc955bab84bd01..dc5c3a1bc2c58a8df2b63e55e594a38e48c011d0 100644 (file)
--- a/ui/sdl.c
+++ b/ui/sdl.c
@@ -812,6 +812,7 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
     uint8_t data = 0;
     DisplayAllocator *da;
     const SDL_VideoInfo *vi;
+    char *filename;
 
 #if defined(__APPLE__)
     /* always use generic keymaps */
@@ -844,6 +845,18 @@ void sdl_display_init(DisplayState *ds, int full_screen, int no_frame)
     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);
+        }
+        qemu_free(filename);
+    }
+
     dcl = qemu_mallocz(sizeof(DisplayChangeListener));
     dcl->dpy_update = sdl_update;
     dcl->dpy_resize = sdl_resize;