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SDL_xbios_nova.h
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SDL_xbios_nova.h
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 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"
/*
NOVA video card definitions
Patrice Mandin
*/
#ifndef _SDL_xbios_nova_h
#define _SDL_xbios_nova_h
/*--- Types ---*/
typedef struct {
unsigned char name[33]; /* Video mode name */
unsigned char dummy1;
unsigned short mode; /* Video mode type */
/* 0=4 bpp */
/* 1=1 bpp */
/* 2=8 bpp */
/* 3=15 bpp (little endian) */
/* 4=16 bpp (little endian) */
/* 5=24 bpp (BGR) */
/* 6=32 bpp (RGBA) */
unsigned short pitch; /* bpp<8: words/plane /line */
/* bpp>=8: bytes /line */
unsigned short planes; /* Bits per pixel */
unsigned short colors; /* Number of colours */
unsigned short hc_mode; /* Hardcopy mode */
/* 0=1 pixel screen -> 1x1 printer screen */
/* 1=1 pixel screen -> 2x2 printer screen */
/* 2=1 pixel screen -> 4x4 printer screen */
unsigned short max_x; /* Max x,y coordinates, values-1 */
unsigned short max_y;
unsigned short real_x; /* Real max x,y coordinates, values-1 */
unsigned short real_y;
unsigned short freq; /* Pixel clock */
unsigned char freq2; /* Another pixel clock */
unsigned char low_res; /* Half of pixel clock */
unsigned char r_3c2;
unsigned char r_3d4[25];
unsigned char extended[3];
unsigned char dummy2;
} nova_resolution_t;
/* cookie NOVA points to this */
typedef struct {
unsigned char version[4]; /* Version number */
unsigned char resolution; /* Resolution number */
unsigned char blnk_time; /* Time before blanking */
unsigned char ms_speed; /* Mouse speed */
unsigned char old_res;
/* Pointer to routine to change resolution */
void (*p_chres)(nova_resolution_t *nova_res, unsigned long offset);
unsigned short mode; /* Video mode type: */
/* 0=4 bpp */
/* 1=1 bpp */
/* 2=8 bpp */
/* 3=15 bpp (little endian) */
/* 4=16 bpp (little endian) */
/* 5=24 bpp (BGR) */
/* 6=32 bpp (RGBA) */
unsigned short pitch; /* bpp<8: bytes per plane, per line */
/* bpp>=8: bytes per line */
unsigned short planes; /* Bits per pixel */
unsigned short colours; /* Number of colours, unused */
unsigned short hc; /* Hardcopy mode */
/* 0=1 pixel screen -> 1x1 printer screen */
/* 1=1 pixel screen -> 2x2 printer screen */
/* 2=1 pixel screen -> 4x4 printer screen */
unsigned short max_x, max_y; /* Resolution, values-1 */
unsigned short rmn_x, rmx_x;
unsigned short rmn_y, rmx_y;
unsigned short v_top, v_bottom;
unsigned short v_left, v_right;
/* Pointer to routine to set colours */
void (*p_setcol)(unsigned short index, unsigned char *colors);
void (*chng_vrt)(unsigned short x, unsigned short y);
void (*inst_xbios)(unsigned short on);
void (*pic_on)(unsigned short on);
void (*chng_pos)(nova_resolution_t *nova_res, unsigned short direction, unsigned short offset);
void (*p_setscr)(void *adr); /* Pointer to routine to change screen address */
void *base; /* Address of screen #0 in video RAM */
void *scr_base; /* Adress of video RAM */
unsigned short scrn_cnt; /* Number of possible screens in video RAM */
unsigned long scrn_sze; /* Size of a screen */
void *reg_base; /* Video card I/O registers base */
void (*p_vsync)(void); /* Pointer to routine to vsync */
unsigned char name[36]; /* Video mode name */
unsigned long mem_size; /* Global size of video memory */
} nova_xcb_t;
#endif /* _SDL_xbios_nova_h */