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view src/video/windx5/SDL_dx5video.h @ 4355:9b464226e541 SDL-1.2

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Fixed bug #855 Ludwig Nussel 2009-10-18 06:31:52 PDT an mprotect call was added to fix bug 528. However that results in a buffer that allows writing and code execution. Ie the no-execute security features of modern operating systems are defeated this way. Two mprotect calls are needed. One to make the buffer executable but not writeable when done and another one to make the buffer writeable again if the content needs to be changed.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 18 Oct 2009 17:31:37 +0000
parents a1b03ba2fcd0
children
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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_dx5video_h
#define _SDL_dx5video_h

#include "directx.h"

/* Private display data */
struct SDL_PrivateVideoData {
    LPDIRECTDRAW2 ddraw2;
    LPDIRECTDRAWSURFACE3 SDL_primary;
    LPDIRECTDRAWCLIPPER SDL_clipper;
    LPDIRECTDRAWPALETTE SDL_palette;
    PALETTEENTRY SDL_colors[256];
    int colorchange_expected;

#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_modeindex[NUM_MODELISTS];
};
/* Old variable names */
#define ddraw2			(this->hidden->ddraw2)
#define SDL_primary		(this->hidden->SDL_primary)
#define SDL_clipper		(this->hidden->SDL_clipper)
#define SDL_palette		(this->hidden->SDL_palette)
#define SDL_colors		(this->hidden->SDL_colors)
#define colorchange_expected	(this->hidden->colorchange_expected)
#define SDL_nummodes		(this->hidden->SDL_nummodes)
#define SDL_modelist		(this->hidden->SDL_modelist)
#define SDL_modeindex		(this->hidden->SDL_modeindex)

/* DirectX function pointers for video and events */
extern HRESULT (WINAPI *DDrawCreate)( GUID FAR *lpGUID, LPDIRECTDRAW FAR *lplpDD, IUnknown FAR *pUnkOuter );
extern HRESULT (WINAPI *DInputCreate)(HINSTANCE hinst, DWORD dwVersion, LPDIRECTINPUT *ppDI, LPUNKNOWN punkOuter);

/* DirectDraw error reporting function */
extern void SetDDerror(const char *function, int code);

#endif /* _SDL_dx5video_h */