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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* Copyright (c) 1989 Regents of the University of California */ |
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/* |
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* x11.c - driver for X-windows version 11.3 |
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* x11.c - driver for X-windows version 11 |
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* |
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* Jan 1990 |
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*/ |
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#include <stdio.h> |
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#include <math.h> |
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#include <sys/ioctl.h> |
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#include <X11/Xlib.h> |
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#include "x11twind.h" |
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#include "x11icon.h" |
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#define GAMMA 2.2 /* exponent for color correction */ |
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#define GAMMA 2.2 /* default exponent correction */ |
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#define MINWIDTH (32*COMCW) /* minimum graphics window width */ |
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#define MINHEIGHT MINWIDTH /* minimum graphics window height */ |
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#define MINHEIGHT (MINWIDTH/2) /* minimum graphics window height */ |
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|
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#define BORWIDTH 5 /* border width */ |
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#define COMHEIGHT (COMLH*COMCH) /* command line height (pixels) */ |
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|
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#define ourscreen DefaultScreen(ourdisplay) |
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#define ourroot RootWindow(ourdisplay,ourscreen) |
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#define ourwhite WhitePixel(ourdisplay,ourscreen) |
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#define ourblack BlackPixel(ourdisplay,ourscreen) |
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|
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#define levptr(etype) ((etype *)¤tevent) |
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static XEvent currentevent; /* current event */ |
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static int ncolors = 0; /* color table size */ |
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static int mapped = 0; /* window is mapped? */ |
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static unsigned long *pixval = NULL; /* allocated pixels */ |
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static unsigned long ourblack=0, ourwhite=1; |
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|
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static Display *ourdisplay = NULL; /* our display */ |
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static Visual *ourvisual; /* our visual structure */ |
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static XVisualInfo ourvinfo; /* our visual information */ |
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static Window gwind = 0; /* our graphics window */ |
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x11_comout, x11_comin, x11_flush, 1.0 |
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}; |
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static int getpixels(), xnewcolr(), freepixels(), |
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getevent(), getkey(), fixwindow(); |
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static unsigned long true_pixel(); |
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|
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struct driver * |
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x11_init(name, id) /* initialize driver */ |
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char *name, *id; |
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{ |
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extern char *getenv(); |
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char *gv; |
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int nplanes; |
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XVisualInfo ourvinfo; |
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XSetWindowAttributes ourwinattr; |
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XWMHints ourxwmhints; |
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XSizeHints oursizhints; |
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stderr_v("cannot open X-windows; DISPLAY variable set?\n"); |
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return(NULL); |
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} |
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/* find a usable visual */ |
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nplanes = DisplayPlanes(ourdisplay, ourscreen); |
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if (nplanes < 4) { |
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stderr_v("not enough colors\n"); |
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return(NULL); |
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} else if (nplanes <= 12) { |
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if (XMatchVisualInfo(ourdisplay,ourscreen, |
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24,TrueColor,&ourvinfo) || |
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XMatchVisualInfo(ourdisplay,ourscreen, |
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24,DirectColor,&ourvinfo)) { |
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ourblack = 0; |
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ourwhite = ourvinfo.red_mask | |
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ourvinfo.green_mask | |
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ourvinfo.blue_mask ; |
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} else { |
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if (nplanes < 4) { |
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stderr_v("not enough colors\n"); |
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return(NULL); |
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} |
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if (!XMatchVisualInfo(ourdisplay,ourscreen, |
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nplanes,PseudoColor,&ourvinfo)) { |
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stderr_v("PseudoColor server required\n"); |
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nplanes,PseudoColor,&ourvinfo) && |
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!XMatchVisualInfo(ourdisplay,ourscreen, |
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nplanes,GrayScale,&ourvinfo)) { |
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stderr_v("unsupported visual type\n"); |
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return(NULL); |
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} |
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} else if (!XMatchVisualInfo(ourdisplay,ourscreen, |
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nplanes,TrueColor,&ourvinfo) && |
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/* kludge for DirectColor */ |
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!XMatchVisualInfo(ourdisplay,ourscreen, |
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nplanes,DirectColor,&ourvinfo)) { |
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stderr_v("TrueColor server required\n"); |
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return(NULL); |
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ourblack = BlackPixel(ourdisplay,ourscreen); |
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ourwhite = WhitePixel(ourdisplay,ourscreen); |
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} |
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ourvisual = ourvinfo.visual; |
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make_gmap(GAMMA); |
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/* open window */ |
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/* set gamma */ |
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if ((gv = getenv("GAMMA")) != NULL) |
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make_gmap(atof(gv)); |
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else |
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make_gmap(GAMMA); |
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/* open window */ |
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ourwinattr.background_pixel = ourblack; |
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ourwinattr.border_pixel = ourblack; |
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/* this is stupid */ |
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ourwinattr.colormap = XCreateColormap(ourdisplay, ourroot, |
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ourvinfo.visual, AllocNone); |
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gwind = XCreateWindow(ourdisplay, ourroot, 0, 0, |
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DisplayWidth(ourdisplay,ourscreen)-2*BORWIDTH, |
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DisplayHeight(ourdisplay,ourscreen)-2*BORWIDTH, |
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BORWIDTH, nplanes, InputOutput, ourvisual, |
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CWBackPixel|CWBorderPixel, &ourwinattr); |
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BORWIDTH, ourvinfo.depth, InputOutput, ourvinfo.visual, |
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CWBackPixel|CWBorderPixel|CWColormap, &ourwinattr); |
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if (gwind == 0) { |
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stderr_v("cannot create window\n"); |
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return(NULL); |
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} |
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XStoreName(ourdisplay, gwind, id); |
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XStoreName(ourdisplay, gwind, id); |
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/* create a cursor */ |
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pickcursor = XCreateFontCursor(ourdisplay, XC_diamond_cross); |
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ourgc = XCreateGC(ourdisplay, gwind, 0, NULL); |
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x11_driver.xsiz = gwidth < MINWIDTH ? MINWIDTH : gwidth; |
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x11_driver.ysiz = gheight < MINHEIGHT ? MINHEIGHT : gheight; |
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x11_driver.inpready = 0; |
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mapped = 1; |
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cmdvec = x11_comout; /* set error vectors */ |
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if (wrnvec != NULL) |
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wrnvec = x11_errout; |
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} |
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XClearWindow(ourdisplay, gwind); |
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/* reinitialize color table */ |
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if (ourvisual->class == PseudoColor) |
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if (ourvinfo.class == PseudoColor || ourvinfo.class == GrayScale) |
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if (getpixels() == 0) |
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stderr_v("cannot allocate colors\n"); |
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else |
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/* get new command line */ |
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if (comline != NULL) |
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xt_close(comline); |
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comline = xt_open(ourdisplay, |
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DefaultGC(ourdisplay,ourscreen), |
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gwind, 0, gheight, gwidth, COMHEIGHT, 0, COMFN); |
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comline = xt_open(ourdisplay, gwind, 0, gheight, |
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gwidth, COMHEIGHT, 0, ourblack, ourwhite, COMFN); |
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if (comline == NULL) { |
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stderr_v("Cannot open command line window\n"); |
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quit(1); |
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COLOR col; |
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int xmin, ymin, xmax, ymax; |
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{ |
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extern int xnewcolr(); /* pixel assignment routine */ |
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extern unsigned long true_pixel(); |
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unsigned long pixel; |
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if (!mapped) |
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return; |
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if (ncolors > 0) |
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pixel = pixval[get_pixel(col, xnewcolr)]; |
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else if (ourvisual->class != PseudoColor) |
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pixel = true_pixel(col); |
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else |
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return; |
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pixel = true_pixel(col); |
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XSetForeground(ourdisplay, ourgc, pixel); |
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XFillRectangle(ourdisplay, gwind, |
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ourgc, xmin, gheight-ymax, xmax-xmin, ymax-ymin); |
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if (c_last > c_first) /* key pressed */ |
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return(x11_getc()); |
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/* button pressed */ |
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if (levptr(XButtonPressedEvent)->button & Button1) |
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if (levptr(XButtonPressedEvent)->button == Button1) |
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return(MB1); |
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if (levptr(XButtonPressedEvent)->button & Button2) |
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if (levptr(XButtonPressedEvent)->button == Button2) |
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return(MB2); |
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if (levptr(XButtonPressedEvent)->button & Button3) |
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if (levptr(XButtonPressedEvent)->button == Button3) |
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return(MB3); |
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if (levptr(XButtonPressedEvent)->button & (Button4|Button5)) |
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return(MB1); |
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return(ABORT); |
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} |
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register int i, j; |
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if (ncolors > 0) |
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goto donecolors; |
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if (ourvisual == DefaultVisual(ourdisplay,ourscreen)) { |
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return(ncolors); |
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if (ourvinfo.visual == DefaultVisual(ourdisplay,ourscreen)) { |
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ourmap = DefaultColormap(ourdisplay,ourscreen); |
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goto loop; |
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} |
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newmap: |
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ourmap = XCreateColormap(ourdisplay,gwind,ourvisual,AllocNone); |
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ourmap = XCreateColormap(ourdisplay,gwind,ourvinfo.visual,AllocNone); |
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loop: |
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for (ncolors = ourvisual->map_entries; |
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ncolors > ourvisual->map_entries/3; |
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for (ncolors = ourvinfo.colormap_size; |
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ncolors > ourvinfo.colormap_size/3; |
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ncolors = ncolors*.937) { |
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pixval = (unsigned long *)malloc(ncolors*sizeof(unsigned long)); |
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if (pixval == NULL) |
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return(ncolors = 0); |
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if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0, |
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pixval,ncolors) != 0) |
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if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0,pixval,ncolors)) |
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break; |
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free((char *)pixval); |
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pixval = NULL; |
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i--; |
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} |
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XSetWindowColormap(ourdisplay, gwind, ourmap); |
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donecolors: |
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#ifdef DEBUG |
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thiscolor.flags = DoRed|DoGreen|DoBlue; |
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thiscolor.red = thiscolor.green = thiscolor.blue = 0; |
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for (i = 0; i < ncolors; i++) { |
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thiscolor.pixel = pixval[i]; |
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XStoreColor(ourdisplay, ourmap, &thiscolor); |
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} |
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#endif |
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return(ncolors); |
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} |
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if (ncolors == 0) |
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return; |
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XFreeColors(ourdisplay,ourmap,pixval,ncolors,0L); |
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free((char *)pixval); |
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pixval = NULL; |
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ncolors = 0; |
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if (ourmap != DefaultColormap(ourdisplay,ourscreen)) |
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XFreeColormap(ourdisplay, ourmap); |
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BYTE rgb[3]; |
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map_color(rgb, col); |
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rval = ourvisual->red_mask*rgb[RED]/255 & ourvisual->red_mask; |
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rval |= ourvisual->green_mask*rgb[GRN]/255 & ourvisual->green_mask; |
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rval |= ourvisual->blue_mask*rgb[BLU]/255 & ourvisual->blue_mask; |
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rval = ourvinfo.red_mask*rgb[RED]/255 & ourvinfo.red_mask; |
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rval |= ourvinfo.green_mask*rgb[GRN]/255 & ourvinfo.green_mask; |
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rval |= ourvinfo.blue_mask*rgb[BLU]/255 & ourvinfo.blue_mask; |
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return(rval); |
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} |
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resizewindow(levptr(XConfigureEvent)); |
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break; |
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case UnmapNotify: |
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mapped = 0; |
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freepixels(); |
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break; |
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case MapNotify: |
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if (ourvisual->class == PseudoColor) |
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if (ourvinfo.class == PseudoColor || |
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ourvinfo.class == GrayScale) |
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if (getpixels() == 0) |
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stderr_v("Cannot allocate colors\n"); |
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else |
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new_ctab(ncolors); |
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mapped = 1; |
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break; |
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case Expose: |
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fixwindow(levptr(XExposeEvent)); |