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-rw-r--r--src/devices/grolbp/lbp.h544
1 files changed, 544 insertions, 0 deletions
diff --git a/src/devices/grolbp/lbp.h b/src/devices/grolbp/lbp.h
new file mode 100644
index 0000000..ee1c7b9
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+++ b/src/devices/grolbp/lbp.h
@@ -0,0 +1,544 @@
+// -*- C -*-
+/* Copyright (C) 1994-2020 Free Software Foundation, Inc.
+ Written by Francisco Andrés Verdú <pandres@dragonet.es>
+
+groff 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 3 of the License, or
+(at your option) any later version.
+
+groff 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, see <http://www.gnu.org/licenses/>. */
+
+/* This file contains a set of utility functions to use canon CaPSL printers
+ * (lbp-4 and lbp-8 series printers) */
+
+#ifndef LBP_H
+#define LBP_H
+
+#include <stdio.h>
+#include <stdarg.h>
+
+static FILE *lbpoutput = NULL;
+static FILE *vdmoutput = NULL;
+
+
+static inline void
+lbpinit(FILE *outfile)
+{
+ lbpoutput = outfile;
+}
+
+
+static void
+lbpprintf(const char *format, ... )
+{ /* Taken from cjet */
+ va_list stuff;
+
+ va_start(stuff, format);
+ vfprintf(lbpoutput, format, stuff);
+ va_end(stuff);
+}
+
+
+static inline void
+lbpputs(const char *data)
+{
+ fputs(data,lbpoutput);
+}
+
+
+static inline void
+lbpputc(unsigned char c)
+{
+ fputc(c,lbpoutput);
+}
+
+
+static inline void
+lbpsavestatus(int idx )
+{
+ fprintf(lbpoutput,"\033[%d%%y",idx);
+}
+
+
+static inline void
+lbprestorestatus(int idx )
+{
+ fprintf(lbpoutput,"\033[%d%cz",idx ,'%');
+}
+
+
+static inline void
+lbpsavepos(int idx)
+{
+ fprintf(lbpoutput,"\033[1;%d;0x",idx);
+}
+
+
+static inline void
+lbprestorepos(int idx)
+{
+ fprintf(lbpoutput,"\033[0;%d;0x",idx);
+}
+
+
+static inline void
+lbprestoreposx(int idx)
+{
+ fprintf(lbpoutput,"\033[0;%d;1x",idx);
+}
+
+
+static inline void
+lbpmoverel(int despl, char direction)
+{
+ fprintf(lbpoutput,"\033[%d%c",despl,direction);
+}
+
+
+static inline void
+lbplinerel(int width,int despl,char direction )
+{
+ fprintf(lbpoutput,"\033[%d;0;9{\033[%d%c\033[9}",width,despl,direction);
+}
+
+
+static inline void
+lbpmoveabs(int x, int y)
+{
+ fprintf(lbpoutput,"\033[%d;%df",y,x);
+}
+
+
+static inline void
+lbplineto(int x,int y, int width )
+{
+ fprintf(lbpoutput,"\033[%d;0;9{",width);
+ lbpmoveabs(x,y);
+ fprintf(lbpoutput,"\033[9}\n");
+}
+
+
+static inline void
+lbpruleabs(int x, int y, int hsize, int vsize)
+{
+ lbpmoveabs(x,y);
+ fprintf(lbpoutput,"\033[0;9;000s");
+ lbpmoveabs(x+hsize,y+vsize);
+ fprintf(lbpoutput,"\033[9r");
+}
+
+
+static void vdmprintf(const char *format, ... );
+
+
+static inline char *
+vdmnum(int num,char *result)
+{
+ char b1,b2,b3;
+ char *p = result;
+ int nm;
+
+ nm = abs(num);
+ /* First byte 1024 - 32768 */
+ b1 = ((nm >> 10) & 0x3F);
+ if (b1) *p++ = b1 | 0x40;
+
+ /* Second Byte 16 - 1024 */
+ b2 = ((nm >> 4) & 0x3F);
+ if ( b1 || b2) *p++= b2 | 0x40;
+
+ /* Third byte 0 - 15 */
+ b3 = ((nm & 0x0F) | 32);
+ if (num >= 0) b3 |= 16;
+ *p++ = b3;
+ *p = 0x00; /* End of the resulting string */
+ return result;
+}
+
+
+static inline void
+vdmorigin(int newx, int newy)
+{
+ char nx[4],ny[4];
+
+ vdmprintf("}\"%s%s\x1e",vdmnum(newx,nx),vdmnum(newy,ny));
+}
+
+
+static inline FILE *
+vdminit(FILE *vdmfile)
+{
+ char scale[4],size[4],lineend[4];
+
+/* vdmoutput = tmpfile();*/
+ vdmoutput = vdmfile;
+ /* Initialize the VDM mode */
+ vdmprintf("\033[0&}#GROLBP\x1e!0%s%s\x1e$\x1e}F%s\x1e",\
+ vdmnum(-3,scale),vdmnum(1,size),vdmnum(1,lineend));
+ return vdmoutput;
+
+}
+
+
+static inline void
+vdmend()
+{
+ vdmprintf("}p\x1e");
+}
+
+
+static void
+vdmprintf(const char *format, ... )
+{ /* Taken from cjet */
+ va_list stuff;
+
+ if (vdmoutput == NULL) vdminit(tmpfile());
+ va_start(stuff, format);
+ vfprintf(vdmoutput, format, stuff);
+ va_end(stuff);
+}
+
+
+static inline void
+vdmsetfillmode(int pattern,int perimeter, int inverted)
+{
+ char patt[4],perim[4],
+ rot[4], /* rotation */
+ espejo[4], /* espejo */
+ inv[4]; /* Inverted */
+
+ vdmprintf("I%s%s%s%s%s\x1e",vdmnum(pattern,patt),\
+ vdmnum(perimeter,perim),vdmnum(0,rot),
+ vdmnum(0,espejo),vdmnum(inverted,inv));
+}
+
+
+static inline void
+vdmcircle(int centerx, int centery, int radius)
+{
+ char x[4],y[4],rad[4];
+
+ vdmprintf("5%s%s%s\x1e",vdmnum(centerx,x),vdmnum(centery,y),\
+ vdmnum(radius,rad));
+}
+
+
+static inline void
+vdmaarc(int centerx, int centery, int radius,int startangle,int angle,int style,int arcopen)
+{
+ char x[4],y[4],rad[4],stx[4],sty[4],styl[4],op[4];
+
+ vdmprintf("}6%s%s%s%s%s%s%s\x1e",vdmnum(arcopen,op),\
+ vdmnum(centerx,x),vdmnum(centery,y),\
+ vdmnum(radius,rad),vdmnum(startangle,stx),vdmnum(angle,sty),\
+ vdmnum(style,styl));
+}
+
+
+static inline void
+vdmvarc(int centerx, int centery,int radius, int startx, int starty, int endx, int endy,\
+ int style,int arcopen)
+{
+ char x[4],y[4],rad[4],stx[4],sty[4],enx[4],eny[4],styl[4],op[4];
+
+ vdmprintf("}6%s%s%s%s%s%s%s%s%s\x1e",vdmnum(arcopen,op),\
+ vdmnum(centerx,x),vdmnum(centery,y),\
+ vdmnum(radius,rad),vdmnum(startx,stx),vdmnum(starty,sty),\
+ vdmnum(endx,enx),vdmnum(endy,eny),vdmnum(style,styl));
+}
+
+
+static inline void
+vdmellipse(int centerx, int centery, int radiusx, int radiusy,int rotation)
+{
+ char x[4],y[4],radx[4],rady[4],rotat[4];
+
+ vdmprintf("}7%s%s%s%s%s\x1e\n",vdmnum(centerx,x),vdmnum(centery,y),\
+ vdmnum(radiusx,radx),vdmnum(radiusy,rady),\
+ vdmnum(rotation,rotat));
+}
+
+
+static inline void
+vdmsetlinetype(int lintype)
+{
+ char ltyp[4], expfact[4];
+
+ vdmprintf("E1%s%s\x1e",vdmnum(lintype,ltyp),vdmnum(1,expfact));
+
+}
+
+
+static inline void
+vdmsetlinestyle(int lintype, int pattern,int unionstyle)
+{
+ char patt[4],ltip[4],
+ rot[4], /* rotation */
+ espejo[4], /* espejo */
+ in[4]; /* Inverted */
+
+ vdmprintf("}G%s%s%s%s%s\x1e",vdmnum(lintype,ltip),\
+ vdmnum(pattern,patt),vdmnum(0,rot),
+ vdmnum(0,espejo),vdmnum(0,in));
+ vdmprintf("}F%s",vdmnum(unionstyle,rot));
+}
+
+
+static inline void
+vdmlinewidth(int width)
+{
+ char wh[4];
+
+ vdmprintf("F1%s\x1e",vdmnum(width,wh));
+}
+
+
+static inline void
+vdmrectangle(int origx, int origy,int dstx, int dsty)
+{
+ char xcoord[4],ycoord[4],sdstx[4],sdsty[4];
+
+ vdmprintf("}:%s%s%s%s\x1e\n",vdmnum(origx,xcoord),vdmnum(dstx,sdstx),\
+ vdmnum(origy,ycoord),vdmnum(dsty,sdsty));
+}
+
+
+static inline void
+vdmpolyline(int numpoints, int *points)
+{
+ int i,*p = points;
+ char xcoord[4],ycoord[4];
+
+ if (numpoints < 2) return;
+ vdmprintf("1%s%s",vdmnum(*p,xcoord),vdmnum(*(p+1),ycoord));
+ p += 2;
+ for (i = 1; i < numpoints ; i++) {
+ vdmprintf("%s%s",vdmnum(*p,xcoord),vdmnum(*(p+1),ycoord));
+ p += 2;
+ } /* for */
+ vdmprintf("\x1e\n");
+}
+
+
+static inline void
+vdmpolygon(int numpoints, int *points)
+{
+ int i,*p = points;
+ char xcoord[4],ycoord[4];
+
+ if (numpoints < 2) return;
+ vdmprintf("2%s%s",vdmnum(*p,xcoord),vdmnum(*(p+1),ycoord));
+ p += 2;
+ for (i = 1; i < numpoints ; i++) {
+ vdmprintf("%s%s",vdmnum(*p,xcoord),vdmnum(*(p+1),ycoord));
+ p += 2;
+ } /* for */
+ vdmprintf("\x1e\n");
+
+}
+
+
+/************************************************************************
+ * Higher level auxiliary functions *
+ ************************************************************************/
+static inline int
+vdminited()
+{
+ return (vdmoutput != NULL);
+}
+
+
+static inline void
+vdmline(int startx, int starty, int sizex, int sizey)
+{
+ int points[4];
+
+ points[0] = startx;
+ points[1] = starty;
+ points[2] = sizex;
+ points[3] = sizey;
+
+ vdmpolyline(2,points);
+
+}
+
+
+/*#define THRESHOLD .05 */ /* inch */
+#define THRESHOLD 1 /* points (1/300 inch) */
+static inline void
+splinerel(double px,double py,int flush)
+{
+ static int lx = 0 ,ly = 0;
+ static double pend = 0.0;
+ static int dy = 0, despx = 0, despy = 0, sigpend = 0;
+ int dxnew = 0, dynew = 0, sg;
+ char xcoord[4],ycoord[4];
+ double npend ;
+
+ if (flush == -1) {lx = (int)px; ly = (int)py; return;}
+
+ if (flush == 0) {
+ dxnew = (int)px -lx;
+ dynew = (int)py -ly;
+ if ((dxnew == 0) && (dynew == 0)) return;
+ sg = (dxnew < 0)? -1 : 0;
+/* fprintf(stderr,"s (%d,%d) (%d,%d)\n",dxnew,dynew,despx,despy);*/
+ if (dynew == 0) {
+ despx = dxnew;
+ if ((sg == sigpend) && (dy == 0)){
+ return;
+ }
+ dy = 0;
+ }
+ else {
+ dy = 1;
+ npend = (1.0*dxnew)/dynew;
+ if (( npend == pend) && (sigpend == sg))
+ { despy = dynew; despx = dxnew; return; }
+ else
+ { sigpend = sg;
+ pend = npend;
+ } /* else (( npend == pend) && ... */
+ } /* else (if (dynew == 0)) */
+ } /* if (!flush ) */
+
+ /* if we've changed direction we must draw the line */
+/* fprintf(stderr," (%d) %.2f,%.2f\n",flush,(float)px,(float)py);*/
+ if ((despx != 0) || (despy != 0)) vdmprintf("%s%s",vdmnum(despx,xcoord),\
+ vdmnum(despy,ycoord));
+ /*if ((despx != 0) || (despy != 0)) fprintf(stderr,"2
+ *%d,%d\n",despx,despy);*/
+ if (flush) {
+ dxnew = dy = despx = despy = 0;
+ return;
+ } /* if (flush) */
+ dxnew -= despx;
+ dynew -= despy;
+ if ((dxnew != 0) || (dynew != 0)) vdmprintf("%s%s",vdmnum(dxnew,xcoord),\
+ vdmnum(dynew,ycoord));
+
+/* if ((dxnew != 0) || (dynew != 0)) fprintf(stderr,"3
+ * %d,%d\n",dxnew,dynew);*/
+ lx = (int)px; ly = (int)py;
+ dxnew = dy = despx = despy = 0;
+
+}
+
+
+/**********************************************************************
+ * The following code to draw splines is adapted from the transfig package
+ */
+static void
+quadratic_spline(double a_1, double b_1, double a_2, double b_2, \
+ double a_3, double b_3, double a_4, double b_4)
+{
+ double x_1, y_1, x_4, y_4;
+ double x_mid, y_mid;
+
+ x_1 = a_1; y_1 = b_1;
+ x_4 = a_4; y_4 = b_4;
+ x_mid = (a_2 + a_3)/2.0;
+ y_mid = (b_2 + b_3)/2.0;
+ if ((fabs(x_1 - x_mid) < THRESHOLD)
+ && (fabs(y_1 - y_mid) < THRESHOLD)) {
+ splinerel(x_mid, y_mid, 0);
+/* fprintf(tfp, "PA%.4f,%.4f;\n", x_mid, y_mid);*/
+ }
+ else {
+ quadratic_spline(x_1, y_1, ((x_1+a_2)/2.0), ((y_1+b_2)/2.0),
+ ((3.0*a_2+a_3)/4.0), ((3.0*b_2+b_3)/4.0), x_mid, y_mid);
+ }
+
+ if ((fabs(x_mid - x_4) < THRESHOLD)
+ && (fabs(y_mid - y_4) < THRESHOLD)) {
+ splinerel(x_4, y_4, 0);
+/* fprintf(tfp, "PA%.4f,%.4f;\n", x_4, y_4);*/
+ }
+ else {
+ quadratic_spline(x_mid, y_mid,
+ ((a_2+3.0*a_3)/4.0), ((b_2+3.0*b_3)/4.0),
+ ((a_3+x_4)/2.0), ((b_3+y_4)/2.0), x_4, y_4);
+ }
+}
+
+
+#define XCOORD(i) numbers[(2*i)]
+#define YCOORD(i) numbers[(2*i)+1]
+static void
+vdmspline(int numpoints, int o_x, int o_y, int *numbers)
+{
+ double cx_1, cy_1, cx_2, cy_2, cx_3, cy_3, cx_4, cy_4;
+ double x_1, y_1, x_2, y_2;
+ char xcoord[4],ycoord[4];
+ int i;
+
+ /*p = s->points;
+ x_1 = p->x/ppi;*/
+ x_1 = o_x;
+ y_1 = o_y;
+/* p = p->next;
+ x_2 = p->x/ppi;
+ y_2 = p->y/ppi;*/
+ x_2 = o_x + XCOORD(0);
+ y_2 = o_y + YCOORD(0);
+ cx_1 = (x_1 + x_2)/2.0;
+ cy_1 = (y_1 + y_2)/2.0;
+ cx_2 = (x_1 + 3.0*x_2)/4.0;
+ cy_2 = (y_1 + 3.0*y_2)/4.0;
+
+/* fprintf(stderr,"Spline %d (%d,%d)\n",numpoints,(int)x_1,(int)y_1);*/
+ vdmprintf("1%s%s",vdmnum((int)x_1,xcoord),vdmnum((int)y_1,ycoord));
+ splinerel(x_1,y_1,-1);
+ splinerel(cx_1,cy_1,0);
+/* fprintf(tfp, "PA%.4f,%.4f;PD%.4f,%.4f;\n",
+ x_1, y_1, cx_1, cy_1);*/
+
+ /*for (p = p->next; p != NULL; p = p->next) {*/
+ for (i = 1; i < (numpoints); i++) {
+ x_1 = x_2;
+ y_1 = y_2;
+/* x_2 = p->x/ppi;
+ y_2 = p->y/ppi;*/
+ x_2 = x_1 + XCOORD(i);
+ y_2 = y_1 + YCOORD(i);
+ cx_3 = (3.0*x_1 + x_2)/4.0;
+ cy_3 = (3.0*y_1 + y_2)/4.0;
+ cx_4 = (x_1 + x_2)/2.0;
+ cy_4 = (y_1 + y_2)/2.0;
+ /* fprintf(stderr,"Point (%d,%d) - (%d,%d)\n",(int)x_1,(int)(y_1),(int)x_2,(int)y_2);*/
+ quadratic_spline(cx_1, cy_1, cx_2, cy_2, cx_3, cy_3, cx_4, cy_4);
+ cx_1 = cx_4;
+ cy_1 = cy_4;
+ cx_2 = (x_1 + 3.0*x_2)/4.0;
+ cy_2 = (y_1 + 3.0*y_2)/4.0;
+ }
+ x_1 = x_2;
+ y_1 = y_2;
+/* p = s->points->next;
+ x_2 = p->x/ppi;
+ y_2 = p->y/ppi;*/
+ x_2 = o_x + XCOORD(0);
+ y_2 = o_y + YCOORD(0);
+ cx_3 = (3.0*x_1 + x_2)/4.0;
+ cy_3 = (3.0*y_1 + y_2)/4.0;
+ cx_4 = (x_1 + x_2)/2.0;
+ cy_4 = (y_1 + y_2)/2.0;
+ splinerel(x_1, y_1, 0);
+ splinerel(x_1, y_1, 1);
+ /*vdmprintf("%s%s",vdmnum((int)(x_1-lx),xcoord),\
+ vdmnum((int)(y_1-ly),ycoord));*/
+ vdmprintf("\x1e\n");
+/* fprintf(tfp, "PA%.4f,%.4f;PU;\n", x_1, y_1);*/
+
+
+}
+
+
+#endif
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