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- /* Copyright (C) 1997 Aladdin Enterprises. All rights reserved.
-
- This file is part of Aladdin Ghostscript.
-
- Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- or distributor accepts any responsibility for the consequences of using it,
- or for whether it serves any particular purpose or works at all, unless he
- or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- License (the "License") for full details.
-
- Every copy of Aladdin Ghostscript must include a copy of the License,
- normally in a plain ASCII text file named PUBLIC. The License grants you
- the right to copy, modify and redistribute Aladdin Ghostscript, but only
- under certain conditions described in the License. Among other things, the
- License requires that the copyright notice and this notice be preserved on
- all copies.
- */
-
- /* gdevlj56.c */
- /* H-P LaserJet 5 & 6 drivers for Ghostscript */
- #include "gdevprn.h"
- #include "gdevpcl.h"
- #include "gdevpxat.h"
- #include "gdevpxen.h"
- #include "gdevpxop.h"
-
- /* Define the default resolution. */
- #ifndef X_DPI
- # define X_DPI 600
- #endif
- #ifndef Y_DPI
- # define Y_DPI 600
- #endif
-
- /* Define the number of blank lines that make it worthwhile to */
- /* start a new image. */
- #define MIN_SKIP_LINES 2
-
- /* We round up the LINE_SIZE to a multiple of a ulong for faster scanning. */
- #define W sizeof(word)
-
- private dev_proc_open_device(ljet5_open);
- private dev_proc_close_device(ljet5_close);
- private dev_proc_print_page(ljet5_print_page);
-
- private gx_device_procs ljet5_procs =
- prn_procs(ljet5_open, gdev_prn_output_page, ljet5_close);
-
- gx_device_printer far_data gs_lj5mono_device =
- prn_device(ljet5_procs, "lj5mono",
- DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
- X_DPI, Y_DPI,
- 0, 0, 0, 0,
- 1, ljet5_print_page);
-
- private gx_device_procs lj5gray_procs =
- prn_color_procs(ljet5_open, gdev_prn_output_page, ljet5_close,
- gx_default_gray_map_rgb_color,
- gx_default_gray_map_color_rgb);
-
- gx_device_printer far_data gs_lj5gray_device = {
- prn_device_body(gx_device_printer, lj5gray_procs, "lj5gray",
- DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
- X_DPI, Y_DPI,
- 0, 0, 0, 0,
- 1, 8, 255, 0, 256, 1, ljet5_print_page)
- };
-
- #define ppdev ((gx_device_printer *)pdev)
-
- /* Write a 'canned' data sequence. */
- #define fwrite_bytes(bytes, strm) fwrite(bytes, 1, sizeof(bytes), strm)
-
- /* Utilities for writing data values. */
- /* H-P printers only support little-endian data, so that's what we emit. */
- #define da(a) pxt_attr_ubyte, (a)
- private void
- put_a(px_attribute_t a, FILE *prn_stream)
- { fputc(pxt_attr_ubyte, prn_stream);
- fputc(a, prn_stream);
- }
- #define dub(b) pxt_ubyte, (byte)(b)
- #define ds(i) (byte)(i), (byte)((i) >> 8)
- private void
- put_s(uint i, FILE *prn_stream)
- { fputc((byte)i, prn_stream);
- fputc((byte)(i >> 8), prn_stream);
- }
- #define dus(i) pxt_uint16, ds(i)
- private void
- put_us(uint i, FILE *prn_stream)
- { fputc(pxt_uint16, prn_stream);
- put_s(i, prn_stream);
- }
- #define dusp(ix,iy) pxt_uint16_xy, ds(ix), ds(iy)
- private void
- put_usp(uint ix, uint iy, FILE *prn_stream)
- { fputc(pxt_uint16_xy, prn_stream);
- put_s(ix, prn_stream);
- put_s(iy, prn_stream);
- }
- #define dss(i) pxt_sint16, ds(i)
- private void
- put_ss(int i, FILE *prn_stream)
- { fputc(pxt_sint16, prn_stream);
- put_s((uint)i, prn_stream);
- }
- #define dl(l) ds(l), ds((l) >> 16)
- private void
- put_l(ulong l, FILE *prn_stream)
- { put_s((uint)l, prn_stream);
- put_s((uint)(l >> 16), prn_stream);
- }
-
- /* Open the printer, writing the stream header. */
- private int
- ljet5_open(gx_device *pdev)
- { int code = gdev_prn_open(pdev);
-
- if ( code < 0 )
- return code;
- code = gdev_prn_open_printer(pdev, true);
- if ( code < 0 )
- return code;
- { FILE *prn_stream = ppdev->file;
- static const byte stream_header[] = {
- da(pxaUnitsPerMeasure),
- dub(0), da(pxaMeasure),
- dub(eErrorPage), da(pxaErrorReport),
- pxtBeginSession,
- dub(0), da(pxaSourceType),
- dub(eBinaryLowByteFirst), da(pxaDataOrg),
- pxtOpenDataSource
- };
-
- fputs("\033%-12345X@PJL ENTER LANGUAGE = PCLXL\n", prn_stream);
- fputs(") HP-PCL XL;1;1\n", prn_stream);
- put_usp((uint)(pdev->HWResolution[0] + 0.5),
- (uint)(pdev->HWResolution[1] + 0.5), prn_stream);
- fwrite_bytes(stream_header, prn_stream);
- }
- return 0;
- }
-
- /* Close the printer, writing the stream trailer. */
- private int
- ljet5_close(gx_device *pdev)
- { int code = gdev_prn_open_printer(pdev, true);
-
- if ( code < 0 )
- return code;
- { FILE *prn_stream = ppdev->file;
- static const byte stream_trailer[] = {
- pxtCloseDataSource,
- pxtEndSession,
- 033, '%', '-', '1', '2', '3', '4', '5', 'X'
- };
-
- fwrite_bytes(stream_trailer, prn_stream);
- }
- return gdev_prn_close(pdev);
- }
-
- /* Send the page to the printer. For now, just send the whole image. */
- private int
- ljet5_print_page(gx_device_printer *pdev, FILE *prn_stream)
- { uint line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev);
- uint line_size_words = (line_size + W - 1) / W;
- uint out_size = line_size + (line_size / 127) + 1;
- word *line = (word *)gs_malloc(line_size_words, W, "ljet5(line)");
- byte *out = gs_malloc(out_size, 1, "ljet5(out)");
- int code = 0;
- int lnum;
-
- if ( line == 0 || out == 0 )
- { code = gs_note_error(gs_error_VMerror);
- goto done;
- }
-
- /* Write the page header. */
- { static const byte page_header[] = {
- dub(ePortraitOrientation), da(pxaOrientation),
- dub(eLetterPaper), da(pxaMediaSize),
- dub(eAutoSelect), da(pxaMediaSource),
- pxtBeginPage,
- dusp(0, 0), da(pxaPoint),
- pxtSetCursor
- };
- static const byte mono_header[] = {
- dub(eGray), da(pxaColorSpace),
- dub(e8Bit), da(pxaPaletteDepth),
- pxt_ubyte_array, pxt_ubyte, 2, 0xff, 0x00, da(pxaPaletteData),
- pxtSetColorSpace
- };
- static const byte gray_header[] = {
- dub(eGray), da(pxaColorSpace),
- pxtSetColorSpace
- };
-
- fwrite_bytes(page_header, prn_stream);
- if ( pdev->color_info.depth == 1 )
- fwrite_bytes(mono_header, prn_stream);
- else
- fwrite_bytes(gray_header, prn_stream);
- }
-
- /* Write the image header. */
- { static const byte mono_image_header[] = {
- da(pxaDestinationSize),
- dub(eIndexedPixel), da(pxaColorMapping),
- dub(e1Bit), da(pxaColorDepth),
- pxtBeginImage
- };
- static const byte gray_image_header[] = {
- da(pxaDestinationSize),
- dub(eDirectPixel), da(pxaColorMapping),
- dub(e8Bit), da(pxaColorDepth),
- pxtBeginImage
- };
-
- put_us(pdev->width, prn_stream);
- put_a(pxaSourceWidth, prn_stream);
- put_us(pdev->height, prn_stream);
- put_a(pxaSourceHeight, prn_stream);
- put_usp(pdev->width, pdev->height, prn_stream);
- if ( pdev->color_info.depth == 1 )
- fwrite_bytes(mono_image_header, prn_stream);
- else
- fwrite_bytes(gray_image_header, prn_stream);
- }
-
- /* Write the image data, compressing each line. */
- for ( lnum = 0; lnum < pdev->height; ++lnum )
- { int ncompr;
- static const byte line_header[] = {
- da(pxaStartLine),
- dus(1), da(pxaBlockHeight),
- dub(eRLECompression), da(pxaCompressMode),
- pxtReadImage
- };
-
- code = gdev_prn_copy_scan_lines(pdev, lnum, (byte *)line, line_size);
- if ( code < 0 )
- goto fin;
- put_us(lnum, prn_stream);
- fwrite_bytes(line_header, prn_stream);
- ncompr = gdev_pcl_mode2compress(line, line + line_size_words, out);
- if ( ncompr <= 255 )
- { fputc(pxt_dataLengthByte, prn_stream);
- fputc(ncompr, prn_stream);
- }
- else
- { fputc(pxt_dataLength, prn_stream);
- put_l(ncompr, prn_stream);
- }
- fwrite(out, 1, ncompr, prn_stream);
- }
-
- /* Finish up. */
- fin:
- fputc(pxtEndImage, prn_stream);
- fputc(pxtEndPage, prn_stream);
- done:
- if ( out )
- gs_free(out, out_size, 1, "ljet5(out)");
- if ( line )
- gs_free(line, line_size_words, W, "ljet5(out)");
- return code;
- }
-