/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc. All rights reserved. This file is part of Ghostscript. Ghostscript is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY. No author or distributor accepts responsibility to anyone for the consequences of using it or for whether it serves any particular purpose or works at all, unless he says so in writing. Refer to the GNU General Public License for full details. Everyone is granted permission to copy, modify and redistribute Ghostscript, but only under the conditions described in the GNU General Public License. A copy of this license is supposed to have been given to you along with Ghostscript so you can know your rights and responsibilities. It should be in a file named COPYING or COPYLEFT. Among other things, the copyright notice and this notice must be preserved on all copies. */ /* gdevln03.c Ghostscript driver for DEC LN03 printer Ulrich Mueller, Div. PPE, CERN, CH-1211 Geneva 23 This code is subject to the GNU General Public License ulm 91-02-13 created as driver for gs 2.1.1 ulm 91-07-23 adapted to gs 2.2 ulm 91-08-21 changed memory allocation to gs_malloc, ported to VMS (contributed by Martin Stiftinger, TU Vienna) lpd 91-11-24 sped up by removing multiplies from inner loop ijmp 92-04-14 add support for la75/la50 (macphed@dvinci.usask.ca) ulm 92-09-25 support letter size paper (8.5" x 11") bbl 93-06-10 added la70 mode (bruce@csugrad.cs.vt.edu) lpd/ab 94-02-04 added la75plus mode (Andre_Beck@IRS.Inf.TU-Dresden.de) pbk 94-02-28 keep lines less than 80 chars for systems where files typed to terminal don't work otherwise; define separate eject string for each device for flexibility; add support for CRT sixels (keegstra@tonga.gsfc.nasa.gov) nb 1999-05-03 added dl2100 code (nick.brown@coe.int) */ #include "gdevprn.h" /* Forward references */ static int sixel_print_page(gx_device_printer *pdev, gp_file *prn_stream, const char *init, const char *eject); /* The device descriptor */ static dev_proc_output_page(sixel_output_page); static dev_proc_print_page(ln03_print_page); /* We have to supply our own procs, since we have to intercept */ /* output_page so we can open the printer in text mode. */ static void sixel_initialize_device_procs(gx_device *dev) { gdev_prn_initialize_device_procs_mono(dev); set_dev_proc(dev, output_page, sixel_output_page); } #ifdef A4 # define BOTTOM_MARGIN 0.5 #else # define BOTTOM_MARGIN 0.4 #endif gx_device_printer gs_ln03_device = prn_device(sixel_initialize_device_procs, "ln03", DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS, 300, 300, /* x_dpi, y_dpi */ 0, BOTTOM_MARGIN, 0, 0, /* left, bottom, right, top margin */ 1, ln03_print_page); /* * Initialization string: switch to graphics mode, 300 dpi * [!p DECSTR soft terminal reset * [11h PUM select unit of measurement * [7 I SSU select pixel as size unit * [?52h DECOPM origin is upper-left corner * [0t DECSLPP set maximum form length * [1;2475s DECSLRM set left and right margins * P0;0;1q select sixel graphics mode * "1;1 DECGRA aspect ratio (1:1) */ #define LN03_INIT \ "\033[!p\033[11h\033[7 I\033[?52h\033[0t\033[1;2475s\033P0;0;1q\"1;1" /* leave sixel graphics mode, eject page \ ST string terminator FF form feed */ #define LN03_EJECT "\033\\\f" static int ln03_print_page(gx_device_printer *pdev, gp_file *prn_stream) { return (sixel_print_page(pdev,prn_stream,LN03_INIT,LN03_EJECT)); } /* * DEClaser 2100 printer - very similar to the LN03. */ static dev_proc_print_page(dl2100_print_page); gx_device_printer gs_dl2100_device = prn_device(sixel_initialize_device_procs, "dl2100", DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS, 300, 300, /* x_dpi, y_dpi */ 0, 0, 0, 0, /* left, bottom, right, top margin */ 1, dl2100_print_page); /* * Initialization string: same as for LN03, plus top/bottom margins. */ #define DL2100_INIT \ "\033[!p\033[11h\033[7 I\033[?52h\033[0t\033[1;2475s\033[1;3510r\033P0;0;1q\"1;1" static int dl2100_print_page(gx_device_printer *pdev, gp_file *prn_stream) { return (sixel_print_page(pdev,prn_stream,DL2100_INIT,LN03_EJECT)); } /* * LA50 dot matrix printer device. * This uses North American 8.5 x 11 inch paper size. */ static dev_proc_print_page(la50_print_page); gx_device_printer gs_la50_device = prn_device(sixel_initialize_device_procs, "la50", 85, 110, 144, 72, 0, 0, 0.5, 0, 1, la50_print_page); /* LA50's use a very primitive form of initialization */ #define LA50_INIT "\033Pq" /* leave sixel graphics mode, eject page \ ST string terminator FF form feed */ #define LA50_EJECT "\033\\\f" static int la50_print_page(gx_device_printer *pdev, gp_file *prn_stream) { return (sixel_print_page(pdev,prn_stream,LA50_INIT,LA50_EJECT)); } /* * LA70 dot matrix printer device. * This uses North American 8.5 x 11 inch paper size. */ static dev_proc_print_page(la70_print_page); gx_device_printer gs_la70_device = prn_device(sixel_initialize_device_procs, "la70", 85, 110, 144, 144, 0, 0, 0.5, 0, 1, la70_print_page); #define LA70_INIT "\033P0;0;0q\"1;1" /* leave sixel graphics mode, eject page \ ST string terminator FF form feed */ #define LA70_EJECT "\033\\\f" static int la70_print_page(gx_device_printer *pdev, gp_file *prn_stream) { return (sixel_print_page(pdev,prn_stream,LA70_INIT,LA70_EJECT)); } /* * LA75 dot matrix printer device. * This uses North American 8.5 x 11 inch paper size. */ static dev_proc_print_page(la75_print_page); gx_device_printer gs_la75_device = prn_device(sixel_initialize_device_procs, "la75", 85, 110, 144, 72, 0, 0, 0.5, 0, 1, la75_print_page); #define LA75_INIT "\033P0;0;0q" /* leave sixel graphics mode, eject page \ ST string terminator FF form feed */ #define LA75_EJECT "\033\\\f" static int la75_print_page(gx_device_printer *pdev, gp_file *prn_stream) { return (sixel_print_page(pdev,prn_stream,LA75_INIT,LA75_EJECT)); } /* * LA75+ dot matrix printer device (24 needles). * This uses either A4 or US paper size. * Last changed: 03.02.94 -abp */ static dev_proc_print_page(la75plus_print_page); gx_device_printer gs_la75plus_device = prn_device(sixel_initialize_device_procs, "la75plus", 85, 110, 180, 180, 0, 0, BOTTOM_MARGIN, 0, 1, la75plus_print_page); /* * Init String: * c full reset * 0;0;1q start sixel printing at max resolution * "1;1 aspect ratio 1:1 */ #define LA75PLUS_INIT "\033c\033P0;0;1q\"1;1" /* leave sixel graphics mode, eject page \ ST string terminator FF form feed */ #define LA75PLUS_EJECT "\033\\\f" static int la75plus_print_page(gx_device_printer *pdev, gp_file *prn_stream) { return (sixel_print_page(pdev,prn_stream,LA75PLUS_INIT,LA75PLUS_EJECT)); } /* * CRT sixels, e.g. for display by VT240-like terminals or MSKERMIT. * Parameters set so MSKERMIT using sixels matches native EGA. * COBE/DMR prefers (145, 100, 56.8, 28.5) to match its program DPSI. */ static dev_proc_print_page(sxlcrt_print_page); gx_device_printer gs_sxlcrt_device = prn_device(sixel_initialize_device_procs, "sxlcrt", 180, 110, 42.6667f, 32.0, 0, 0, 0, 0, 1, sxlcrt_print_page); /* Use init and eject strings similar to COBE/DMR program DQUSIXEL */ /* Add an exit Tek emulation sequence so kermit displays properly */ #define SXLCRT_INIT "\033[?38l\033P0q" /* leave sixel graphics mode, home cursor */ #define SXLCRT_EJECT "\033\\\033[23;0H" static int sxlcrt_print_page(gx_device_printer *pdev, gp_file *prn_stream) { return (sixel_print_page(pdev,prn_stream,SXLCRT_INIT,SXLCRT_EJECT)); } /* ------ Internal routines ------ */ /* Open the printer in text mode before gdev_prn_output_page */ /* opens it in binary mode. */ static int sixel_output_page(gx_device *pdev, int num_copies, int flush) { int code = gdev_prn_open_printer(pdev, 0); if ( code < 0 ) return code; return gdev_prn_output_page(pdev, num_copies, flush); } /* Send the page to the printer. */ /* Keep all lines <= 80 chars */ static int sixel_print_page(gx_device_printer *pdev, gp_file *prn_stream, const char *init, const char *eject) { byte *in, *inp; int lnum, lcount, l, count, empty, mask, c, oldc, line_size, in_size; int ccount; line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev); in_size = line_size * 6; in = (byte *)gs_malloc(pdev->memory->non_gc_memory, in_size, 1, "sixel_print_page"); /* Check allocation */ if (!in) return(-1); gp_fputs(init,prn_stream); ccount = strlen(init); /* Print lines of graphics */ for (lnum = lcount = 0; lnum < pdev->height; lnum+=6, lcount++) { gdev_prn_copy_scan_lines(pdev, lnum, inp = in, line_size * 6); mask = 0200; oldc = 077; empty = 1; for (l = pdev->width, count = 0; --l >= 0; count++) { /* transpose 6*8 rectangle */ register byte *iptr = inp; c = 077; if (*iptr & mask) c += 1; if (*(iptr += line_size) & mask) c += 2; if (*(iptr += line_size) & mask) c += 4; if (*(iptr += line_size) & mask) c += 010; if (*(iptr += line_size) & mask) c += 020; if (*(iptr += line_size) & mask) c += 040; if (!(mask >>= 1)) { mask = 0200; inp++; } if (c != oldc) { if (empty) { while (--lcount >= 0) { /* terminate record. this LF is ignored by the LN03 */ if (ccount > 78) { gp_fputc('\n', prn_stream); ccount = 0; } /* terminate previous line */ gp_fputc('-', prn_stream); ccount++; } empty = lcount = 0; } if (count > 3) { /* use run length encoding */ if (ccount > 74) { gp_fputc('\n', prn_stream); ccount = 0; } /* we know lines will not exceed 10000 pixels */ ccount = ccount + 3 + (count > 9) + (count > 99) + (count > 999); gp_fprintf(prn_stream, "!%d%c", count, oldc); } else { while (--count >= 0) { if (ccount > 78) { gp_fputc('\n', prn_stream); ccount = 0; } gp_fputc(oldc, prn_stream); ccount++; } } oldc = c; count = 0; } } if (c != 077) { if (count > 3) { /* use run length encoding */ if (ccount > 74) { gp_fputc('\n', prn_stream); ccount = 0; } /* we know lines will not exceed 10000 pixels */ ccount = ccount + 3 + (count > 9) + (count > 99) + (count > 999); gp_fprintf(prn_stream, "!%d%c", count, c); } else { while (--count >= 0) { if (ccount > 78) { gp_fputc('\n', prn_stream); ccount = 0; } gp_fputc(c, prn_stream); ccount++; } } } } /* leave sixel graphics mode, eject page */ if (ccount + strlen(eject) > 79) gp_fputc('\n', prn_stream); gp_fputs(eject, prn_stream); gp_fflush(prn_stream); gs_free(pdev->memory->non_gc_memory, (char *)in, in_size, 1, "sixel_print_page"); return(0); }