qemu-patch-raspberry4/sdl_zoom.h
Stefano Stabellini c18a2c360e 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>
2009-06-29 08:52:44 -05:00

26 lines
585 B
C

/*
* 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 */