matrox_mmio.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:2k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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
- */
- #ifdef SAVE_RCSID
- static char rcsid =
- "@(#) $Id: matrox_mmio.h,v 1.4 2002/04/22 21:38:04 wmay Exp $";
- #endif
- /* 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 )
- ;
- }