Mercurial > sdl-ios-xcode
view src/video/fbcon/matrox_mmio.h @ 4383:daf9e6037596 SDL-1.2
Gregory Smith
Another one for the "How did this ever work?" file: when
DX5_HandleMessage is called with WM_ACTIVATEAPP, it goes past the end
of the 2-element SDL_DIdev array and if there doesn't happen to be a 0
in the memory next to it, crashes. Patch against SVN attached.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 15 Nov 2009 17:21:24 +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" /* MGA register definitions */ #include "matrox_regs.h" /* MGA control macros */ #define mga_in8(reg) *(volatile Uint8 *)(mapped_io + (reg)) #define mga_in32(reg) *(volatile Uint32 *)(mapped_io + (reg)) #define mga_out8(reg,v) *(volatile Uint8 *)(mapped_io + (reg)) = v; #define mga_out32(reg,v) *(volatile Uint32 *)(mapped_io + (reg)) = v; /* Wait for fifo space */ #define mga_wait(space) \ { \ while ( mga_in8(MGAREG_FIFOSTATUS) < space ) \ ; \ } /* Wait for idle accelerator */ #define mga_waitidle() \ { \ while ( mga_in32(MGAREG_STATUS) & 0x10000 ) \ ; \ }