ref: 216c1ae66ef6967d1a470a431418241c001c708b
dir: /u/vgamodes.h/
/*
Copyright (C) 1996-1997 Id Software, Inc.
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.
*/
//
// vgamodes.h: VGA mode set tables
//
#include "vregset.h"
int VGA_InitMode (viddef_t *vid, vmode_t *pcurrentmode);
void VGA_SwapBuffers (viddef_t *vid, vmode_t *pcurrentmode, vrect_t *rects);
void VGA_SetPalette (viddef_t *vid, vmode_t *pcurrentmode,
unsigned char *pal);
///////////////////////////////////////////////////////////////////////////
// the following base mode descriptors plus extra data together provide all
// the data needed to do VGA mode sets
///////////////////////////////////////////////////////////////////////////
typedef struct {
int vidbuffer;
int *pregset;
} vextra_t;
int vrsnull[] = {
VRS_END,
};
int vrs320x200x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
VRS_BYTE_RMW, GC_DATA, ~0x13, 0x00,
VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// change the CRTC from doubleword to byte mode
//
VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
VRS_END,
};
int vrs360x200x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_WORD_OUT, SC_INDEX, 0x0604,
VRS_BYTE_OUT, MISC_OUTPUT, 0x67,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// change the CRTC from doubleword to byte mode
//
VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
//
// set up the CRT Controller
//
VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
VRS_WORD_OUT, CRTC_INDEX, 0x5901,
VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
VRS_WORD_OUT, CRTC_INDEX, 0x3013,
VRS_END,
};
int vrs320x240x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
VRS_BYTE_RMW, GC_DATA, ~0x13, 0x00,
VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// set up the CRT Controller
//
VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
VRS_WORD_OUT, CRTC_INDEX, 0x4109,
VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
VRS_WORD_OUT, CRTC_INDEX, 0x0014,
VRS_WORD_OUT, CRTC_INDEX, 0xE715,
VRS_WORD_OUT, CRTC_INDEX, 0x0616,
VRS_WORD_OUT, CRTC_INDEX, 0xE317,
VRS_END,
};
int vrs360x240x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_WORD_OUT, SC_INDEX, 0x0604,
VRS_BYTE_OUT, MISC_OUTPUT, 0xE7,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// set up the CRT Controller
//
VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
VRS_WORD_OUT, CRTC_INDEX, 0x5901,
VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
VRS_WORD_OUT, CRTC_INDEX, 0x4109,
VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
VRS_WORD_OUT, CRTC_INDEX, 0x3013,
VRS_WORD_OUT, CRTC_INDEX, 0x0014,
VRS_WORD_OUT, CRTC_INDEX, 0xE715,
VRS_WORD_OUT, CRTC_INDEX, 0x0616,
VRS_WORD_OUT, CRTC_INDEX, 0xE317,
VRS_END,
};
int vrs320x350x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
VRS_BYTE_RMW, GC_DATA, ~0x10, 0x00,
VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
VRS_BYTE_OUT, MISC_OUTPUT, 0xA3, // 350-scan-line scan rate
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// stop scanning each line twice
//
VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
//
// change the CRTC from doubleword to byte mode
//
VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
//
// set the vertical counts for 350-scan-line mode
//
VRS_WORD_OUT, CRTC_INDEX, 0xBF06,
VRS_WORD_OUT, CRTC_INDEX, 0x1F07,
VRS_WORD_OUT, CRTC_INDEX, 0x8310,
VRS_WORD_OUT, CRTC_INDEX, 0x8511,
VRS_WORD_OUT, CRTC_INDEX, 0x5D12,
VRS_WORD_OUT, CRTC_INDEX, 0x6315,
VRS_WORD_OUT, CRTC_INDEX, 0xBA16,
VRS_END,
};
int vrs360x350x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_WORD_OUT, SC_INDEX, 0x0604,
VRS_BYTE_OUT, MISC_OUTPUT, 0xA7, // 350-scan-line scan rate
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// stop scanning each line twice
//
VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
//
// change the CRTC from doubleword to byte mode
//
VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
//
// set the vertical counts for 350-scan-line mode and 360 pixels across
//
VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
VRS_WORD_OUT, CRTC_INDEX, 0x5901,
VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
VRS_WORD_OUT, CRTC_INDEX, 0xBF06,
VRS_WORD_OUT, CRTC_INDEX, 0x1F07,
VRS_WORD_OUT, CRTC_INDEX, 0x8310,
VRS_WORD_OUT, CRTC_INDEX, 0x8511,
VRS_WORD_OUT, CRTC_INDEX, 0x5D12,
VRS_WORD_OUT, CRTC_INDEX, 0x3013,
VRS_WORD_OUT, CRTC_INDEX, 0x6315,
VRS_WORD_OUT, CRTC_INDEX, 0xBA16,
VRS_END,
};
int vrs320x400x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
VRS_BYTE_RMW, GC_DATA, ~0x10, 0x00,
VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// stop scanning each line twice
//
VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
//
// change the CRTC from doubleword to byte mode
//
VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
VRS_END,
};
int vrs360x400x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_WORD_OUT, SC_INDEX, 0x0604,
VRS_BYTE_OUT, MISC_OUTPUT, 0x67,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// stop scanning each line twice
//
VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
//
// change the CRTC from doubleword to byte mode
//
VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
//
// set up the CRT Controller
//
VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
VRS_WORD_OUT, CRTC_INDEX, 0x5901,
VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
VRS_WORD_OUT, CRTC_INDEX, 0x3013,
VRS_END,
};
int vrs320x480x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_BYTE_OUT, SC_INDEX, MEMORY_MODE,
VRS_BYTE_RMW, SC_DATA, ~0x08, 0x04,
VRS_BYTE_OUT, GC_INDEX, GRAPHICS_MODE,
VRS_BYTE_RMW, GC_DATA, ~0x10, 0x00,
VRS_BYTE_OUT, GC_INDEX, MISCELLANOUS,
VRS_BYTE_RMW, GC_DATA, ~0x02, 0x00,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// stop scanning each line twice
//
VRS_BYTE_OUT, CRTC_INDEX, MAX_SCAN_LINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x1F, 0x00,
//
// change the CRTC from doubleword to byte mode
//
VRS_BYTE_OUT, CRTC_INDEX, UNDERLINE,
VRS_BYTE_RMW, CRTC_DATA, ~0x40, 0x00,
VRS_BYTE_OUT, CRTC_INDEX, MODE_CONTROL,
VRS_BYTE_RMW, CRTC_DATA, ~0x00, 0x40,
//
// set up the CRT Controller
//
VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
VRS_WORD_OUT, CRTC_INDEX, 0xE715,
VRS_WORD_OUT, CRTC_INDEX, 0x0616,
VRS_END,
};
int vrs360x480x256planar[] = {
//
// switch to linear, non-chain4 mode
//
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 1,
VRS_WORD_OUT, SC_INDEX, 0x0604,
VRS_BYTE_OUT, MISC_OUTPUT, 0xE7,
VRS_BYTE_OUT, SC_INDEX, SYNC_RESET,
VRS_BYTE_OUT, SC_DATA, 3,
//
// unprotect CRTC0 through CRTC0
//
VRS_BYTE_OUT, CRTC_INDEX, 0x11,
VRS_BYTE_RMW, CRTC_DATA, ~0x80, 0x00,
//
// set up the CRT Controller
//
VRS_WORD_OUT, CRTC_INDEX, 0x6B00,
VRS_WORD_OUT, CRTC_INDEX, 0x5901,
VRS_WORD_OUT, CRTC_INDEX, 0x5A02,
VRS_WORD_OUT, CRTC_INDEX, 0x8E03,
VRS_WORD_OUT, CRTC_INDEX, 0x5E04,
VRS_WORD_OUT, CRTC_INDEX, 0x8A05,
VRS_WORD_OUT, CRTC_INDEX, 0x0D06,
VRS_WORD_OUT, CRTC_INDEX, 0x3E07,
VRS_WORD_OUT, CRTC_INDEX, 0x4009,
VRS_WORD_OUT, CRTC_INDEX, 0xEA10,
VRS_WORD_OUT, CRTC_INDEX, 0xAC11,
VRS_WORD_OUT, CRTC_INDEX, 0xDF12,
VRS_WORD_OUT, CRTC_INDEX, 0x3013,
VRS_WORD_OUT, CRTC_INDEX, 0x0014,
VRS_WORD_OUT, CRTC_INDEX, 0xE715,
VRS_WORD_OUT, CRTC_INDEX, 0x0616,
VRS_WORD_OUT, CRTC_INDEX, 0xE317,
VRS_END,
};
//
// extra VGA-specific data for vgavidmodes
//
vextra_t extra320x200x256linear = {
1, vrsnull
};
vextra_t extra320x200x256planar = {
1, vrs320x200x256planar
};
vextra_t extra360x200x256planar = {
1, vrs360x200x256planar
};
vextra_t extra320x240x256planar = {
1, vrs320x240x256planar
};
vextra_t extra360x240x256planar = {
1, vrs360x240x256planar
};
vextra_t extra320x350x256planar = {
1, vrs320x350x256planar
};
vextra_t extra360x350x256planar = {
1, vrs360x350x256planar
};
vextra_t extra320x400x256planar = {
1, vrs320x400x256planar
};
vextra_t extra360x400x256planar = {
1, vrs360x400x256planar
};
vextra_t extra320x480x256planar = {
1, vrs320x480x256planar
};
vextra_t extra360x480x256planar = {
1, vrs360x480x256planar
};
//
// base mode descriptors, in ascending order of number of pixels
//
vmode_t vgavidmodes[] = {
{
NULL,
"320x200", " ***** standard VGA modes ***** ",
320, 200, (200.0/320.0)*(320.0/240.0), 320, 0, 1, &extra320x200x256linear,
VGA_InitMode, VGA_SwapBuffers, VGA_SetPalette,
VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"320x200", " ***** Mode X-style modes ***** ",
320, 200, (200.0/320.0)*(320.0/240.0), 320, 1, 1, &extra320x200x256planar,
VGA_InitMode, VGA_SwapBuffers, VGA_SetPalette,
VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"360x200", NULL, 360, 200, (200.0/360.0)*(320.0/240.0),
384, 1, 1, &extra360x200x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"320x240", NULL, 320, 240, (240.0/320.0)*(320.0/240.0),
320, 1, 1, &extra320x240x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"360x240", NULL, 360, 240, (240.0/360.0)*(320.0/240.0),
384, 1, 1, &extra360x240x256planar,
VGA_InitMode, VGA_SwapBuffers, VGA_SetPalette,
VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"320x350", NULL, 320, 350, (350.0/320.0)*(320.0/240.0),
320, 1, 1, &extra320x350x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"360x350", NULL, 360, 350, (350.0/360.0)*(320.0/240.0),
384, 1, 1, &extra360x350x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"320x400", NULL, 320, 400, (400.0/320.0)*(320.0/240.0), 320,
1, 1, &extra320x400x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"360x400", NULL, 360, 400, (400.0/360.0)*(320.0/240.0),
384, 1, 1, &extra360x400x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"320x480", NULL, 320, 480, (480.0/320.0)*(320.0/240.0),
320, 1, 1, &extra320x480x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
{
NULL,
"360x480", NULL, 360, 480, (480.0/360.0)*(320.0/240.0),
384, 1, 1, &extra360x480x256planar, VGA_InitMode,
VGA_SwapBuffers,
VGA_SetPalette, VGA_BeginDirectRect, VGA_EndDirectRect
},
};