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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2009-06-24 11:58:25 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-06-29 08:52:44 -0500 |
| commit | c18a2c360e3100bbd71162cf922dcd8c429a8b71 (patch) | |
| tree | dea997d9de9b100224a2f2adf25dead03d47df34 /sdl_zoom.h | |
| parent | 14899cdf3a6e1fc0d72097a43c1c53a1354fbfbf (diff) | |
| download | qemu-c18a2c360e3100bbd71162cf922dcd8c429a8b71.tar.gz qemu-c18a2c360e3100bbd71162cf922dcd8c429a8b71.tar.bz2 qemu-c18a2c360e3100bbd71162cf922dcd8c429a8b71.zip | |
sdl zooming
Hi all,
this patch implements zooming capabilities for the sdl interface.
A new sdl_zoom_blit function is added that is able to scale and blit a
portion of a surface into another.
This way we can enable SDL_RESIZABLE and have a real_screen surface with
a different size than the guest surface and let sdl_zoom_blit take care
of the problem.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'sdl_zoom.h')
| -rw-r--r-- | sdl_zoom.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sdl_zoom.h b/sdl_zoom.h new file mode 100644 index 0000000000..33dc63408b --- /dev/null +++ b/sdl_zoom.h @@ -0,0 +1,25 @@ +/* + * SDL_zoom - surface scaling + * + * Copyright (c) 2009 Citrix Systems, Inc. + * + * Derived from: SDL_rotozoom, LGPL (c) A. Schiffler from the SDL_gfx library. + * Modifications by Stefano Stabellini. + * + * This work is licensed under the terms of the GNU GPL version 2. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef _SDL_zoom_h +#define _SDL_zoom_h + +#include <SDL/SDL.h> + +#define SMOOTHING_OFF 0 +#define SMOOTHING_ON 1 + +int sdl_zoom_blit(SDL_Surface *src_sfc, SDL_Surface *dst_sfc, + int smooth, SDL_Rect *src_rect); + +#endif /* _SDL_zoom_h */ |