-/*****************************************************************************
-** This is part of the CTSim program
-** Copyright (C) 1983-2000 Kevin Rosenberg
-**
-** $Id: sgpdriver.cpp,v 1.1 2000/06/19 19:20:11 kevin Exp $
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License (version 2) as
-** published by the Free Software Foundation.
-**
-** 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
-******************************************************************************/
-
-/* Device Driver for IBM PC Kevin Rosenberg March 84 */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include "ctsupport.h"
-#include "sgp.h"
-
-
-static int init_prt(void);
-static void term_prt(void);
-
-/*===========================================================*/
-/* fundamental device drivers */
-/*===========================================================*/
-
-#define XCHARSIZ (1.0 / 80.0) /* size of standard characters */
-#define YCHARSIZ (1.0 / 25.0) /* on screen in NDC */
-
-#define CRTASPT (0.75) /* for IBM ECD */
-
-/*-------------------*/
-/* print buffer data */
-/*-------------------*/
-#define PRTINIT 1
-#define PRTLIN 2
-#define PRTTERM 3
-
-#define PRTSIZE 200
-#define PRTMODE 1 /* Epson 120 dot/in graphic mode */
-#define PRTASPT (120.0 / 72.0) /* dots/in vectical / horizontal */
-
-static DEVICE crt, prt;
-CHARSPEC cspec;
-static GRFSTATE state;
-
-
-
-/* NAME
- * gp_init Initialize graphics package
- *
- * SYNOPSIS
- * gp_init()
- */
-
-
-int
-_sgp2_init_dev (SGP_ID cwin)
-{
-#if 0
- initdevice (CRTDEV, GM_ENHANCED, 0, 0);
- initdevice (PRTDEV, PRTMODE, (int) (PRTSIZE * PRTASPT), PRTSIZE);
- opendevice (CRTDEV);
- setlinestyle (LS_SOLID);
- setcolor (1);
- _sgp2_set_text (XCHARSIZ, YCHARSIZ, 0.0, 0);
- setbackg (0);
- settextclr (1, 0);
- gp_set_aspect (CRTDEV, CRTASPT);
- gp_set_aspect (PRTDEV, 1.0);
-#endif
-
- state.xndc = 10.; /* to guarntee a move */
- _sgp2_stylus (cwin, 0.0,0.0,0); /* move to starting corner */
-
- return (TRUE);
-}
-
-
-/* NAME
- * gp_initdev Initializes graphic device
- *
- * SYNOPSIS
- * initdevice (dev, mode, xsize, ysize)
- * int dev Device handle
- * int mode Mode for device (device specific)
- * int xsize Size of x buffer for PRTDEV
- * int ysize Size of y buffer for PRTDEV
- */
-
-int
-initdevice (int dev, int mode, int xsize, int ysize)
-{
- if (dev & CRTDEV)
- {
- // crt.dotfunc = crt_wdot;
- // crt.linefunc = crt_line;
- crt.xmin = 0;
- crt.ymin = 0;
- switch (crt.mode)
- {
-#if 0
- case 4:
- case 5:
- crt.xmax = 319;
- crt.xsize = 320;
- crt.ymax = 199;
- crt.ysize = 200;
- crt.colormax = 3;
- break;
- case GM_640x200:
- crt.xmax = 639;
- crt.xsize = 640;
- crt.ymax = 199;
- crt.ysize = 200;
- crt.colormax = 1;
- break;
- case GM_ENHANCED:
- case GM_MONOGRF:
- crt.xmax = 639;
- crt.xsize = 640;
- crt.ymax = 349;
- crt.ysize = 350;
- crt.colormax = 15;
- break;
- case GM_640x480x16:
- crt.xmax = 639;
- crt.xsize = 640;
- crt.ymax = 479;
- crt.ysize = 480;
- crt.colormax = 15;
- break;
- case GM_640x480x256:
- crt.xmax = 639;
- crt.xsize = 640;
- crt.ymax = 479;
- crt.ysize = 480;
- crt.colormax = 255;
- break;
- case GM_1024x768x16:
- crt.xmax = 1023;
- crt.xsize = 1024;
- crt.ymax = 767;
- crt.ysize = 768;
- crt.colormax = 15;
- break;
- case GM_1024x768x256:
- crt.xmax = 1023;
- crt.xsize = 1024;
- crt.ymax = 767;
- crt.ysize = 768;
- crt.colormax = 255;
- break;
-#endif
- default:
- return (FALSE);
- }
- // crt_set_mode (crt.mode, TRUE); /* Initialize device */
- }
-
- if (dev & PRTDEV) {
- if (prt.open == TRUE)
- closedevice (PRTDEV);
- prt.buf = NULL;
- if (mode < 0)
- prt.mode = PRTMODE;
- if (mode > 6)
- prt.mode = PRTMODE;
- else
- prt.mode = mode;
-
- if (xsize > 1 && ysize > 1) {
- prt.xsize = xsize;
- prt.ysize = ysize;
- prt.xmin = 0;
- prt.ymin = 0;
- prt.xmax = prt.xsize - 1;
- prt.ymax = prt.ysize - 1;
- }
-
- prt.colormax = 1;
- // prt.dotfunc = prtdot;
- // prt.linefunc = prtline;
-
- init_prt (); /* Initialize the device */
- }
-
- return (TRUE);
-}
-
-
-/* NAME
- * gp_opendev Open device for output
- *
- * SYNOPSIS
- * gp_opendev (dev)
- * int dev Device handle
- * devices are number in powers of two
- */
-
-int
-opendevice (int dev)
-{
- if (dev & CRTDEV)
- crt.open = TRUE;
-
- if (dev & PRTDEV)
- prt.open = TRUE;
-
- return(TRUE);
-}
-
-
-/* NAME
- * gp_closedev Close device for output
- *
- * SYNOPSIS
- * gp_closedev (dev)
- * int dev Device handle
- *
- * DESCRIPTION
- * Temporarily suspends output from going to a device
- */
-
-void
-closedevice (int dev)
-{
- if (dev & CRTDEV) /* close crt */
- crt.open = FALSE;
-
- if (dev & PRTDEV)
- prt.open = FALSE;
-}
-
-
-void
-termdevice (int dev)
-{
- if (dev & PRTDEV)
- term_prt ();
-}
-
-static int init_prt(void)
-{
- return(0);
-}
-
-
-static void term_prt(void)
-{
-}
-
-/*===========================================================*/
-/* stylus draws a line to the absolute point x,y in NDC's */
-/* t=0 for move, t=1 for draw */
-/*===========================================================*/
-void
-_sgp2_stylus (SGP_ID cwin, double x, double y, int beam)
-{
- int xp, yp;
-
- if ((state.xndc == x) && (state.yndc == y) && (beam == 0))
- return; /* no need to move */
-
- state.xndc = x; /* save current beam location */
- state.yndc = y;
-
- if (cwin != NULL) {
- xp = (int) (x * cwin->pw_xsize + 0.5);
- yp = (int) (y * cwin->pw_ysize + 0.5);
-#if HAVE_G2_H
- if (beam != 0)
- g2_line (cwin->g2_id, (double) cwin->phys_curx, (double) cwin->phys_cury, (double) xp, (double) yp);
-#endif
- cwin->phys_curx = xp;
- cwin->phys_cury = yp;
- }
-}
-
-void
-pntndc (SGP_ID cwin, double x, double y)
-{
- _sgp2_stylus (cwin, x, y, 0); /* move to point */
- // if (crt.open == TRUE)
- // cpix_set (crt.icurx, crt.icury, crt.color);
-}
-
-void
-markndc (SGP_ID cwin, double x, double y)
-{
- _sgp2_stylus (cwin, x, y, 0); /* move to point */
-
- if (crt.open == TRUE)
- wrtsymbol (state.marktype, crt.icurx, crt.icury, &crt);
-
- if (prt.open == TRUE)
- wrtsymbol (state.marktype, prt.icurx, prt.icury, &prt);
-}
-
-GRFSTATE *
-inqstate (void)
-{
- return (&state);
-}
-
-void
-gp_set_aspect (int dev, double asp)
-{
- if (asp > 0.0) {
- if (dev & CRTDEV)
- crt.asp = asp;
- if (dev & PRTDEV)
- prt.asp = asp;
- }
-}
-
-void
-setlinestyle (int style)
-{
- if (style == state.linestyle)
- return;
-
- state.linestyle = style;
-
- crt.style = style;
- prt.style = style;
-
- // crt_line_style (crt.style);
-}
-
-void
-setlinewidth (int wid)
-{
- state.linewidth = wid;
-}
-
-DEVICE *
-inqdev (int dev)
-{
- if (dev & CRTDEV)
- return (&crt);
- else if (dev & PRTDEV)
- return (&prt);
- else
- return (NULL);
-}
-
-/*===========================================================*/
-/* set text size */
-/*===========================================================*/
-void
-_sgp2_set_text ( SGP_ID cwin,
- double width,
- double height, /* size of character in NDC */
- double textangle, /* text angle */
- int font /* text font */
- )
-{
- double temp;
-
-#if HAVE_G2_H
- g2_set_font_size(cwin->g2_id, (height * cwin->pw_ysize));
-#endif
- height = clamp (height, 0.0, 1.0);
- width = clamp (width, 0.0, 1.0);
- /* textangle = textangle - (2 * PI * (int) (textangle / (2 * PI)));
- */
- cspec.width = width;
- cspec.height = height;
- cspec.textangle = textangle;
- cspec.font = font;
-
- if (textangle > - HALFPI / 2 && textangle < HALFPI / 2) {
- cspec.updir = YPLUS;
- cspec.textdir = XPLUS;
- } else if (textangle > HALFPI / 2 && textangle < 3 * HALFPI / 2) {
- cspec.updir = XMINUS;
- cspec.textdir = YPLUS;
- } else if (textangle > 3 * HALFPI / 2 && textangle < 5 * HALFPI / 2) {
- cspec.updir = YMINUS;
- cspec.textdir = XMINUS;
- } else if (textangle > 5 * HALFPI / 2 && textangle < 7 * HALFPI / 2) {
- cspec.updir = XPLUS;
- cspec.textdir = YMINUS;
- } else {
- cspec.updir = YPLUS;
- cspec.textdir = XPLUS;
- }
-
- if (cspec.updir == XMINUS || cspec.updir == XPLUS) {
- temp = height;
- height = width;
- width = temp;
- }
-
- crt.icwidth = (int) (width * crt.xsize + 0.5);
- crt.icheight = (int) (height * crt.ysize + 0.5);
- crt.icwidth = clamp (crt.icwidth, 8, crt.xsize);
- crt.icheight = clamp (crt.icheight, 8, crt.ysize);
-
- prt.icwidth = (int) (width * prt.xsize + 0.5);
- prt.icheight = (int) (height * prt.ysize + 0.5);
- prt.icwidth = clamp (prt.icwidth, 8, prt.xsize);
- prt.icheight = clamp (prt.icheight, 8, prt.ysize);
-}
-
-void
-settextclr (int fore, int back)
-{
- cspec.fore = fore;
- cspec.back = back;
- crt.cfore = fore;
- crt.cback = back;
- prt.cfore = clamp (fore, 0, prt.colormax);
- prt.cback = back;
-}
-
-void
-setcolor (int fore)
-{
- int back;
-
- state.foregnd = fore;
- back = state.backgnd;
- crtcolor (crt.mode, &fore, &back); /* set colors on crt */
- crt.color = fore;
- prt.color = clamp (fore, 0, prt.colormax);
-}
-
-void
-setbackg (int back)
-{
- int fore;
-
- state.backgnd = back;
- fore = state.foregnd;
- crtcolor (crt.mode, &fore, &back);
-}
-
-/*
- * INITMARKER (<SYMBOL>)
- *
- * Sets the current marker symbol (cross, square, diamond..)
- */
-int
-initmarker (int marker, int color)
-{
- if (marker > NMARKERS || marker < 0)
- return(-1);
- else {
- state.marktype = marker;
- state.markcolor = color;
- }
- return(0);
-} /* end initmarker */
-
-/*
- * SETCHARDIR ( <DIRECTION> )
- *
- * indicates in which direction a string should be printed, e.g.:
- * direction = YPLUS -> print on the horizontal from left to right
- * direction = YMINUS -> print upside-down characters from right to left
- * direction = XMINUS -> print on the vertical from down to up
- * direction = XPLUS -> print on the vertical from up to down
- */
-int
-settextdir (
- int direction /* direction flag */
- )
-{
-
- if (direction != XPLUS &&
- direction != XMINUS &&
- direction != YPLUS &&
- direction != YMINUS ) {
- printf("Error in character direction: %d\n", direction);
- return(-1);
- }
- cspec.textdir = direction;
- charsize (cspec.width, cspec.height);
-
- return(0);
-} /* end setchardir */
-
-
-void
-_sgp2_dev_text (SGP_ID cwin, char *message)
-{
-#if HAVE_G2_H
- g2_string (cwin->g2_id, cwin->phys_curx, cwin->phys_cury, message);
-#endif
-}
-
-/*===========================================================*/
-/* terminate graphics to current device */
-/* close any files, and output any buffers */
-/*===========================================================*/
-void
-termgrf2 (void)
-{
- if (prt.open == TRUE) {
- flushdevice (PRTDEV);
- closedevice (PRTDEV);
- termdevice (PRTDEV);
- }
-
- if (crt.open == TRUE) {
- closedevice (CRTDEV);
- }
-}
-
-
-void
-flushdevice (int dev)
-{
- // if (dev & PRTDEV)
- // prtline (PRTTERM, 0, 0, 0, 0, 0, 0); /* print contents of printer buffer */
-}
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