view src/video/quartz/CGS.h @ 4355:9b464226e541 SDL-1.2

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 Library General Public
    License as published by the Free Software Foundation; either
    version 2 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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

/* 
    Obscuring code: maximum number of windows above ours (inclusive) 
    
    Note: this doesn't work too well in practice and should be
    phased out when we add OpenGL 2D acceleration. It was never
    enabled in the first place, so this shouldn't be a problem ;-)
*/
#define kMaxWindows 256

/* Some of the Core Graphics Server API for obscuring code */
#define kCGSWindowLevelTop          2147483632
#define kCGSWindowLevelDockIconDrag 500
#define kCGSWindowLevelDockMenu     101
#define kCGSWindowLevelMenuIgnore    21
#define kCGSWindowLevelMenu          20
#define kCGSWindowLevelDockLabel     12
#define kCGSWindowLevelDockIcon      11
#define kCGSWindowLevelDock          10
#define kCGSWindowLevelUtility        3
#define kCGSWindowLevelNormal         0

/* 
    For completeness; We never use these window levels, they are always below us
    #define kCGSWindowLevelMBarShadow -20
    #define kCGSWindowLevelDesktopPicture -2147483647
    #define kCGSWindowLevelDesktop        -2147483648
*/

typedef CGError       CGSError;
typedef long          CGSWindowCount;
typedef void *        CGSConnectionID;
typedef int           CGSWindowID;
typedef CGSWindowID*  CGSWindowIDList;
typedef CGWindowLevel CGSWindowLevel;
typedef NSRect        CGSRect;

extern CGSConnectionID _CGSDefaultConnection ();

extern CGSError CGSGetOnScreenWindowList (CGSConnectionID cid,
                                          CGSConnectionID owner,
                                          CGSWindowCount listCapacity,
                                          CGSWindowIDList list,
                                          CGSWindowCount *listCount);

extern CGSError CGSGetScreenRectForWindow (CGSConnectionID cid,
                                           CGSWindowID wid,
                                           CGSRect *rect);

extern CGWindowLevel CGSGetWindowLevel (CGSConnectionID cid,
                                        CGSWindowID wid,
                                        CGSWindowLevel *level);

extern CGSError CGSDisplayHWFill (CGDirectDisplayID id, unsigned int x, unsigned int y,
                                  unsigned int w, unsigned int h, unsigned int color);

extern CGSError CGSDisplayCanHWFill (CGDirectDisplayID id);

extern CGSError CGSGetMouseEnabledFlags (CGSConnectionID cid, CGSWindowID wid, int *flags);

int CGSDisplayHWSync (CGDirectDisplayID id);