use offscreen blitting when SDL_DOUBLEBUF is not set

[sdl_omap.git] / src / video / omapdss / linux / fbdev.c

diff --git a/src/video/omapdss/linux/fbdev.c b/src/video/omapdss/linux/fbdev.c
index ec3d5c7..7e8a962 100644 (file)
--- a/src/video/omapdss/linux/fbdev.c
+++ b/src/video/omapdss/linux/fbdev.c
@@ -175,6 +175,17 @@ int vout_fbdev_get_fd(struct vout_fbdev *fbdev)
        return fbdev->fd;
 }
 
+void *vout_fbdev_get_active_mem(struct vout_fbdev *fbdev)
+{
+       int i;
+
+       i = fbdev->buffer_write - 1;
+       if (i < 0)
+               i = fbdev->buffer_count - 1;
+
+       return (char *)fbdev->mem + fbdev->fb_size * i;
+}
+
 struct vout_fbdev *vout_fbdev_init(const char *fbdev_name, int *w, int *h, int bpp, int buffer_cnt)
 {
        struct vout_fbdev *fbdev;