/***  $Id: fbvideo.h,v 1.6 2005/09/02 11:02:45 qzlong Exp $**  **  Port to MiniGUI by Wei Yongming (2001/10/03).**  Copyright (C) 2001 ~ 2002 Wei Yongming.**  Copyright (C) 2003 Feynman Software.****  SDL - Simple DirectMedia Layer**  Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga*//*** This program is free software; you can redistribute it and/or modify** it under the terms of the GNU General Public License as published by** the Free Software Foundation; either version 2 of the License, or** (at your option) any later version.**** This program 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 General Public License for more details.**** You should have received a copy of the GNU General Public License** along with this program; if not, write to the Free Software** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#ifndef _GAL_fbvideo_h#define _GAL_fbvideo_h#include <sys/types.h>#include <termios.h>#include <linux/fb.h>#include "sysvideo.h"/* Hidden "this" pointer for the video functions */#define _THIS	GAL_VideoDevice *this/* This is the structure we use to keep track of video memory */typedef struct vidmem_bucket {	struct vidmem_bucket *prev;	int used;	int dirty;	char *base;	unsigned int size;	struct vidmem_bucket *next;} vidmem_bucket;/* Private display data */struct GAL_PrivateVideoData {	int console_fd;	struct fb_var_screeninfo cache_vinfo;	struct fb_var_screeninfo saved_vinfo;	int saved_cmaplen;	__u16 *saved_cmap;	int current_vt;	int saved_vt;	int keyboard_fd;	int saved_kbd_mode;	struct termios saved_kbd_termios;	int mouse_fd;	char *mapped_mem;	int mapped_memlen;	int mapped_offset;	char *mapped_io;	long mapped_iolen;	int flip_page;	char *flip_address[2];	vidmem_bucket surfaces;	int surfaces_memtotal;	int surfaces_memleft;	void (*wait_vbl)(_THIS);	void (*wait_idle)(_THIS);};/* Old variable names */#define console_fd		(this->hidden->console_fd)#define current_vt		(this->hidden->current_vt)#define saved_vt		(this->hidden->saved_vt)#define keyboard_fd		(this->hidden->keyboard_fd)#define saved_kbd_mode		(this->hidden->saved_kbd_mode)#define saved_kbd_termios	(this->hidden->saved_kbd_termios)#define mouse_fd		(this->hidden->mouse_fd)#define cache_vinfo		(this->hidden->cache_vinfo)#define saved_vinfo		(this->hidden->saved_vinfo)#define saved_cmaplen		(this->hidden->saved_cmaplen)#define saved_cmap		(this->hidden->saved_cmap)#define mapped_mem		(this->hidden->mapped_mem)#define mapped_memlen		(this->hidden->mapped_memlen)#define mapped_offset		(this->hidden->mapped_offset)#define mapped_io		(this->hidden->mapped_io)#define mapped_iolen		(this->hidden->mapped_iolen)#define flip_page		(this->hidden->flip_page)#define flip_address		(this->hidden->flip_address)#define surfaces		(this->hidden->surfaces)#define surfaces_memtotal	(this->hidden->surfaces_memtotal)#define surfaces_memleft	(this->hidden->surfaces_memleft)#define wait_vbl		(this->hidden->wait_vbl)#define wait_idle		(this->hidden->wait_idle)/* Accelerator types that are supported by the driver, but are not   necessarily in the kernel headers on the system we compile on.*/#ifndef FB_ACCEL_MATROX_MGAG400#define FB_ACCEL_MATROX_MGAG400	26	/* Matrox G400			*/#endif#ifndef FB_ACCEL_3DFX_BANSHEE#define FB_ACCEL_3DFX_BANSHEE	31	/* 3Dfx Banshee			*/#endif/* These functions are defined in GAL_fbvideo.c */extern void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area);extern void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area);/* These are utility functions for working with video surfaces */static __inline__ void FB_AddBusySurface(GAL_Surface *surface){	((vidmem_bucket *)surface->hwdata)->dirty = 1;}static __inline__ int FB_IsSurfaceBusy(GAL_Surface *surface){	return ((vidmem_bucket *)surface->hwdata)->dirty;}static __inline__ void FB_WaitBusySurfaces(_THIS){	vidmem_bucket *bucket;	/* Wait for graphic operations to complete */	wait_idle(this);	/* Clear all surface dirty bits */	for ( bucket=&surfaces; bucket; bucket=bucket->next ) {		bucket->dirty = 0;	}}static __inline__ void FB_dst_to_xy(_THIS, GAL_Surface *dst, int *x, int *y){	*x = (long)((char *)dst->pixels - mapped_mem)%this->screen->pitch;	*y = (long)((char *)dst->pixels - mapped_mem)/this->screen->pitch;	if ( dst == this->screen ) {		*x += this->offset_x;		*y += this->offset_y;	}}#endif /* _GAL_fbvideo_h */