457 lines
15 KiB
C++
457 lines
15 KiB
C++
// This may look like C code, but it is really -*- C++ -*-
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// ------------------------------------------------------------------
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// The Goldware Library
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// Copyright (C) 1990-1999 Odinn Sorensen
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// Copyright (C) 1999-2000 Alexander S. Aganichev
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// ------------------------------------------------------------------
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free
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// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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// MA 02111-1307, USA
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// ------------------------------------------------------------------
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// $Id$
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// ------------------------------------------------------------------
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// Based on CXL by Mike Smedley.
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// Screen/video functions.
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// ------------------------------------------------------------------
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#ifndef __gvidall_h
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#define __gvidall_h
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// ------------------------------------------------------------------
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#include <gdefs.h>
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#if defined(__USE_NCURSES__)
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#include <gcurses.h>
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#endif
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#if defined(__WIN32__)
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#include <windows.h>
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#endif
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// ------------------------------------------------------------------
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// Display adapter types returned from vidtype()
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// If bit 0 is set, the adapter was detected in monochrome mode
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#define GV_NONE 0x0000
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#define V_MONO 0x0001
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#define V_MDA 0x0011
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#define V_HGC 0x0021
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#define V_HGCPLUS 0x0041
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#define V_INCOLOR 0x0080
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#define V_CGA 0x0100
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#define V_EGA 0x0200
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#define V_EGAMONO 0x0201
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#define V_MCGA 0x0400
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#define V_MCGAMONO 0x0401
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#define V_VGA 0x0800
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#define V_VGAMONO 0x0801
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// ------------------------------------------------------------------
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// Video parameter settings
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#define VP_DMA 0 // direct screen writes
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#define VP_CGA 1 // direct screen writes, eliminate CGA snow
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#define VP_BIOS 2 // BIOS screen writes
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#define VP_MONO 3 // monochrome attribute translation on
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#define VP_COLOR 4 // monochrome attribute translation off
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#define VP_OS2VIO 6 // OS/2 vio screen writes
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#define VP_W32CON 7 // WIN32 console screen writes
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#define VP_CURSES 8 // Curses screen writes
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// ------------------------------------------------------------------
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// Video devices
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#define GVID_DMA 0
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#define GVID_CGA 1
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#define GVID_BIO 2
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#define GVID_OS2 4
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#define GVID_W32 5
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#define GVID_CUR 6
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// ------------------------------------------------------------------
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// Useful defines for video (0x10) interrupt function numbers
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#if defined(__MSDOS__)
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#define V_SET_MODE 0x00
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#define V_SET_CURSOR_POS 0x02
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#define V_GET_CURSOR_POS 0x03
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#define V_SCROLL_UP 0x06
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#define V_SCROLL_DOWN 0x07
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#define V_RD_CHAR_ATTR 0x08
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#define V_WR_CHAR_ATTR 0x09
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#define V_WR_CHAR 0x0A
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#define V_WR_TTY 0x0E
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#define V_GET_MODE 0x0F
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#define V_GET_FONT_INFO 0x1130
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#endif
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// ------------------------------------------------------------------
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#if defined(__MSDOS__)
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struct __int10_ah1b_statebuf {
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// Offset Size Description
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dword statfunctable; // 00h DWORD address of static funtionality table (see below)
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byte videomode; // 04h BYTE video mode in effect
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word columns; // 05h WORD number of columns
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word regenbuflen; // 07h WORD length of regen buffer in bytes
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word regenbufstart; // 09h WORD starting address of regen buffer
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word cursorpos0; // 0Bh WORD cursor position for page 0
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word cursorpos1; // 0Dh WORD cursor position for page 1
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word cursorpos2; // 0Fh WORD cursor position for page 2
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word cursorpos3; // 11h WORD cursor position for page 3
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word cursorpos4; // 13h WORD cursor position for page 4
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word cursorpos5; // 15h WORD cursor position for page 5
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word cursorpos6; // 17h WORD cursor position for page 6
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word cursorpos7; // 19h WORD cursor position for page 7
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word cursortype; // 1Bh WORD cursor type
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byte activepage; // 1Dh BYTE active display page
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word crctportaddr; // 1Eh WORD CRTC port address
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byte curr_reg_3x8; // 20h BYTE current setting of register (3?8)
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byte curr_reg_3x9; // 21h BYTE current setting of register (3?9)
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byte rows; // 22h BYTE number of rows
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word bytesperchar; // 23h WORD bytes/character
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byte dispcombcode; // 25h BYTE display combination code of active display
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byte dcc; // 26h BYTE DCC of alternate display
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word numcolors; // 27h WORD number of colors supported in current mode
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byte numpages; // 29h BYTE number of pages supported in current mode
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byte numscanlines; // 2Ah BYTE number of scan lines active (0,1,2,3) = (200,350,400,480) Tseng ET3000: (4,5,6 = 512,600,768)
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byte primcharblock; // 2Bh BYTE primary character block
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byte seccharblock; // 2Ch BYTE secondary character block
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byte miscflags; // 2Dh BYTE miscellaneous flags (see below)
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byte reserved1[3]; // 2Eh 3 BYTEs reserved (00h)
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byte videomem; // 31h BYTE video memory available 00h = 64K, 01h = 128K, 02h = 192K, 03h = 256K
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byte stateflags; // 32h BYTE save pointer state flags (see below)
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byte reserved2[13]; // 33h 13 BYTEs reserved (00h)
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};
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#endif
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// ------------------------------------------------------------------
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// Attribute codes for functions that use them
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#define BLACK 0
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#define BLUE 1
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#define GREEN 2
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#define CYAN 3
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#define RED 4
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#define MAGENTA 5
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#define BROWN 6
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#define LGREY 7
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#define DGREY 8
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#define LBLUE 9
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#define LGREEN 10
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#define LCYAN 11
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#define LRED 12
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#define LMAGENTA 13
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#define YELLOW 14
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#define WHITE 15
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#define _BLACK (BLACK << 4)
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#define _BLUE (BLUE << 4)
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#define _GREEN (GREEN << 4)
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#define _CYAN (CYAN << 4)
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#define _RED (RED << 4)
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#define _MAGENTA (MAGENTA << 4)
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#define _BROWN (BROWN << 4)
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#define _LGREY (LGREY << 4)
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#define _DGREY (DGREY << 4)
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#define _LBLUE (LBLUE << 4)
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#define _LGREEN (LGREEN << 4)
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#define _LCYAN (LCYAN << 4)
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#define _LRED (LRED << 4)
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#define _LMAGENTA (LMAGENTA << 4)
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#define _YELLOW (YELLOW << 4)
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#define _WHITE (WHITE << 4)
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#ifdef BLINK
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#undef BLINK
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#endif
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#define BLINK 128
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#ifdef INTENSE
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#undef INTENSE
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#endif
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#define INTENSE 8
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#if defined(__UNIX__) && !defined(__USE_NCURSES__)
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#define ACSET BLINK
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#else
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#define ACSET 0
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#endif
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// ------------------------------------------------------------------
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// Additional monochrome color values
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#define UNDERLINE 1
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#define NORMAL 7
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#define HIGHLIGHT 15
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#define REVERSE 112
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// ------------------------------------------------------------------
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// Border types
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#define BT_SINGLE 0
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#define BT_DOUBLE 1
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#define BT_SINGLETOP 2
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#define BT_DOUBLETOP 3
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#define BT_BLANKS 4
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#define BT_NONE 5
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#define BT_BLOCKS 6
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#define BT_ASCII 7
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// ------------------------------------------------------------------
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// Video information structure
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struct GVidInfo {
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// Screen info
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struct {
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int mode; // Video mode
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int rows; // Number of rows
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int columns; // Number of columns
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int cheight; // Character height
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int cwidth; // Character width
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} screen;
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// Cursor info
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struct {
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int column; // Cursor column
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int row; // Cursor row
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int start; // Cursor start line
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int end; // Cursor end line
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word attr; // Cursor attribute. Hidden if attr == 0xFFFF
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} cursor;
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// Colors
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struct {
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int textattr; // Text attribute
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int overscan; // Overscan color
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int intensity; // Background color state (intense or blinking)
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int palette[16]; // Palette state
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} color;
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};
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// ------------------------------------------------------------------
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#ifdef __DJGPP__
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typedef unsigned long gdma; // Video DMA linear address
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#else
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typedef word* gdma; // Video DMA pointer
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#endif
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// ------------------------------------------------------------------
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#if defined(__USE_NCURSES__)
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typedef chtype vchar; // Type of characters on-screen
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typedef chtype vatch; // Type of character-attribute groups
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#elif defined(__WIN32__)
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typedef char vchar; // Type of characters on-screen
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typedef CHAR_INFO vatch; // Type of character-attribute groups
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#else
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typedef char vchar; // Type of characters on-screen
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typedef word vatch; // Type of character-attribute groups
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#endif
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// ------------------------------------------------------------------
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// Video information record
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class GVid {
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public:
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int adapter; // Video adapter type
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GVidInfo orig; // Original video info
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GVidInfo curr; // Current video info
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int device; // Video device type
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gdma dmadir; // Video DMA pointer (direct)
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gdma dmaptr; // Video DMA pointer (direct or buffered)
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vchar* bufchr; // Video line char buffer (char only)
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vatch* bufwrd; // Video line word buffer (char+attr)
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vchar* bufansi; // Video line ANSI buffer (11*numcols)
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int currow; // Current cursor row
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int curcol; // Current cursor column
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int numrows; // number of displayed rows
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int numcols; // number of displayed columns
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word videoseg; // video buffer segment address
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public:
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GVid();
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~GVid();
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public:
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void init();
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int detectadapter ();
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void detectinfo (GVidInfo* _info);
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void resetcurr ();
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void setdevice (int _device);
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void setmode (int _mode);
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void setrows (int _rows);
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void setoverscan (int _overscan);
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void setintensity (int _intensity);
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void getpalette (int* _palette);
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void setpalette (int* _palette);
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bool isdma() { return device == GVID_DMA; }
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bool iscga() { return device == GVID_CGA; }
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bool isbios() { return device == GVID_BIO; }
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void restore_cursor();
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void resize_screen(int columns, int rows);
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};
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extern GVid *gvid;
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// ------------------------------------------------------------------
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// Box characters table
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#if !defined(__USE_NCURSES__)
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extern char* __box_table[];
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#define _box_table(i,j) (__box_table[i][j])
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#else
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chtype _box_table(int type, int c);
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#endif
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// ------------------------------------------------------------------
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// Prototypes
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int setvparam (int setting);
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int mapattr (int attr);
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int revsattr (int attr);
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inline int attrib(int f, int b, int i, int bl) { return (int)((b<<4)|(f)|(i<<3)|(bl<<7)); }
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void vputw (int row, int col, vatch chat);
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void vputws (int row, int col, vatch* buf, uint len);
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void vputc (int row, int col, int atr, vchar chr);
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void vputvs (int row, int col, int atr, const vchar* str);
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void vputs (int row, int col, int atr, const char* str);
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void vputns (int row, int col, int atr, const char* str, uint len);
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void vputx (int row, int col, int atr, vchar chr, uint len);
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void vputy (int row, int col, int atr, vchar chr, uint len);
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vatch vgetw (int row, int col);
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void vgetc (int row, int col, int* atr, vchar* chr);
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void vscroll (int srow, int scol, int erow, int ecol, int atr, int lines);
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void vposget (int* row, int* col);
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void vposset (int row, int col);
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void vclrscr ();
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void vclrscr (int atr); // Overloaded
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typedef struct _vsavebuf {
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int top, left, right, bottom;
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__extension__ vatch data[0];
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} vsavebuf;
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vsavebuf* vsave (int srow=-1, int scol=-1, int erow=-1, int ecol=-1);
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void vrestore (vsavebuf* buf, int srow=-1, int scol=-1, int erow=-1, int ecol=-1);
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void vcurget (int* sline, int* eline);
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void vcurset (int sline, int eline);
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void vcurhide ();
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void vcurshow ();
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bool vcurhidden ();
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void vcurlarge ();
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void vcursmall ();
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void vbox (int srow, int scol, int erow, int ecol, int box, int hiattr, int loattr=-1);
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void vfill (int srow, int scol, int erow, int ecol, vchar chr, int atr);
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vchar vgetc (int row, int col); // Gets the character from position
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vchar vgchar (vatch chat); // Gets the character part of a character-attribute group
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int vgattr (vatch chat); // Gets the attribute part of a character-attribute group
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vatch vschar (vatch chat, vchar chr); // Sets the given character in a character-attribute group
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vatch vsattr (vatch chat, int atr); // Sets the given attribute in a character-attribute group
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vatch vcatch (vchar chr, int atr); // Compose character-attribute group from character and attribute
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// inline implementation of functions above
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inline vchar vgetc (int row, int col) { return vgchar(vgetw(row, col)); }
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#if defined(__USE_NCURSES__)
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int gvid_dosattrcalc (int ourattr);
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int gvid_attrcalc (int dosattr);
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inline vchar vgchar (vatch chat) { return chat & (A_CHARTEXT | A_ALTCHARSET); }
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inline int vgattr (vatch chat) { return gvid_dosattrcalc(chat & ~(A_CHARTEXT | A_ALTCHARSET)); }
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inline vatch vschar (vatch chat, vchar chr) { return (chr & (A_CHARTEXT | A_ALTCHARSET)) | (chat & ~(A_CHARTEXT | A_ALTCHARSET)); }
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inline vatch vsattr (vatch chat, int atr) { return (chat & (A_CHARTEXT | A_ALTCHARSET)) | gvid_attrcalc(atr); }
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inline vatch vcatch (vchar chr, int atr) { return chr | gvid_attrcalc(atr); }
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#elif defined(__WIN32__)
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inline vchar vgchar (vatch chat) { return chat.Char.AsciiChar; }
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inline int vgattr (vatch chat) { return chat.Attributes; }
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inline vatch vschar (vatch chat, vchar chr) { chat.Char.UnicodeChar = 0; chat.Char.AsciiChar = chr; return chat; }
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inline vatch vsattr (vatch chat, int atr) { chat.Attributes = atr; return chat; }
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inline vatch vcatch (vchar chr, int atr) { vatch chat; chat.Char.UnicodeChar = 0; chat.Char.AsciiChar = chr; chat.Attributes = atr; return chat; }
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#else
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inline vchar vgchar (vatch chat) { return chat & 0xff; }
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inline int vgattr (vatch chat) { return (chat >> 8) & 0xff; }
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inline vatch vschar (vatch chat, vchar chr) { return (chat & 0xff00) | chr; }
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inline vatch vsattr (vatch chat, int atr) { return (chat & 0xff) | (atr << 8); }
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inline vatch vcatch (vchar chr, int atr) { return (chr & 0xff) | ((atr << 8) & 0xff00); }
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#endif
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typedef void (*VidPutStrCP)(int,int,int,const char*);
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void gvid_boxcvt(char* s);
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// ------------------------------------------------------------------
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#endif
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// ------------------------------------------------------------------
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