view src/video/maccommon/SDL_macwm_c.h @ 4137:be12463f31ea SDL-1.2

Date: Sat, 2 Feb 2008 22:08:05 +0100 From: Marcus von Appen To: sdl@lists.libsdl.org Subject: [SDL] [Patch] SDL-1.2 SDL_revcpy() asm patch for the cld flag Hi, as reported through the FreeBSD bug tracking system in SDL 1.2.13 (and in the 1.2 branch, if I see that correctly) the SDL_revcpy() macro sets the direction flag (std), but does not clear it afterwards (cld), which is wrong according to the GCC and SYS V specs. This can cause some weird side effects, which in turn can lead to memory corruption. You can read the full report with a detailed description and test program at http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/120052 Attached is the submitted patch, which fixes the issue. Regards Marcus
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 04 Feb 2008 17:22:56 +0000
parents 7cdb1d7fc93b
children a1b03ba2fcd0
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line source

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 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"

#include "../macrom/SDL_romvideo.h"

/* Functions to be exported */
extern void Mac_SetCaption(_THIS, const char *title, const char *icon);

/*
 * There's no Carbonized gamma support in Mac OS X, since PBStatusSync() and
 *  Control() aren't supported in OS X's Carbonlib. Use the Quartz driver
 *  instead.
 */
#define SDL_MACCLASSIC_GAMMA_SUPPORT ((defined(__APPLE__) && defined(__MACH__)) == 0)

#if SDL_MACCLASSIC_GAMMA_SUPPORT
extern void Mac_QuitGamma(_THIS);
extern int Mac_SetGammaRamp(_THIS, Uint16 *ramp);
extern int Mac_GetGammaRamp(_THIS, Uint16 *ramp);
#endif