view src/video/svga/SDL_svgavideo.h @ 3469:8c5fb2a3b11d

RenderReadPixels and RenderWritePixels functions work with back buffer now and all asynchronous operations are flushed before reading or writing to backbuffer. Thanks Sam for clarification of this.
author Mike Gorchak <lestat@i.com.ua>
date Sat, 21 Nov 2009 06:17:50 +0000
parents 99210400e8b9
children f7b03b6838cb
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef _SDL_svgavideo_h
#define _SDL_svgavideo_h

#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"

/* Hidden "this" pointer for the video functions */
#define _THIS	SDL_VideoDevice *this

/* Private display data */
struct SDL_PrivateVideoData
{
#define NUM_MODELISTS	4       /* 8, 16, 24, and 32 bits-per-pixel */
    int SDL_nummodes[NUM_MODELISTS];
    SDL_Rect **SDL_modelist[NUM_MODELISTS];
    int *SDL_vgamode[NUM_MODELISTS];

    /* information for double-buffering */
    int flip_page;
    int flip_offset[2];
    Uint8 *flip_address[2];

    /* Set to 1 if we're in banked video mode */
    int banked;
};
/* Old variable names */
#define SDL_nummodes		(this->hidden->SDL_nummodes)
#define SDL_modelist		(this->hidden->SDL_modelist)
#define SDL_vgamode		(this->hidden->SDL_vgamode)
#define flip_page		(this->hidden->flip_page)
#define flip_offset		(this->hidden->flip_offset)
#define flip_address		(this->hidden->flip_address)
#define	banked			(this->hidden->banked)

#endif /* _SDL_svgavideo_h */
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