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Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..4b34ec1 --- /dev/null +++ b/src/main.c @@ -0,0 +1,205 @@ +/* + * Copyright 2017 DiUS Computing Pty Ltd. All rights reserved. + * + * Released under GPLv3, see LICENSE for details. + * + * @author Johny Mattsson <jmattsson@dius.com.au> + */ +#include "ql.h" +#include "loadpng.h" +#include <errno.h> +#include <getopt.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <signal.h> + +static bool timed_out = false; +void on_alarm(int ignored) +{ + (void)ignored; + timed_out = true; +} + + +void syntax(void) +{ + fprintf(stderr, +"Syntax:\n" +" qlprint [-p lp] -i\n" +" [-p lp] [-m margin] [-a] [-C|-D] [-W width] [-L length] [-Q] [-n num] [-t threshold] png...\n" +"Where:\n" +" -p lp Printer port (default /dev/usb/lp0)\n" +" -i Print status information only, then exit\n" +" -m margin Margin (dots)\n" +" -a Enable auto-cut\n" +" -C Request continuous-length-tape when printing (error if not)\n" +" -D Request die-cut-labels when printing (error if not)\n" +" -W width Request particular width media when printing (error if not)\n" +" -L length Request particular length media when printing (error if not)\n" +" -Q Prioritise quality of speed\n" +" -n num Print num copies\n" +" -t threshold Threshold for black-vs-white (default 128, i.e. 0-127=black)\n" +" png... One or more png files to print\n" +"\n"); + + exit(EXIT_FAILURE); +} + +int main (int argc, char *argv[]) +{ + bool info_only = false; + int32_t margin = -1; + bool autocut = false; + int num = 1; + ql_print_cfg_t cfg = { + .threshold = 0x80, + .flags = 0 + }; + int opt; + const char *printer = "/dev/usb/lp0"; + while ((opt = getopt(argc, argv, "ip:m:an:CDW:L:Q")) != -1) + { + switch(opt) + { + case 'i': info_only = true; break; + case 'p': printer = optarg; break; + case 'm': margin = atoi(optarg); break; + case 'a': autocut = true; break; + case 'n': num = atoi(optarg); break; + case 'C': cfg.media_type = QL_MEDIA_TYPE_CONTINUOUS; + cfg.flags |= QL_PRINT_CFG_MEDIA_TYPE; break; + case 'D': cfg.media_type = QL_MEDIA_TYPE_DIECUT_LABELS; + cfg.flags |= QL_PRINT_CFG_MEDIA_TYPE; break; + case 'W': cfg.media_width = atoi(optarg); + cfg.flags |= QL_PRINT_CFG_MEDIA_WIDTH; break; + case 'L': cfg.media_length = atoi(optarg); + cfg.flags |= QL_PRINT_CFG_MEDIA_LENGTH; break; + case 'Q': cfg.flags |= QL_PRINT_CFG_QUALITY_PRIO; break; + default: syntax(); + } + } + + if (optind >= argc && !info_only) + syntax(); + + ql_ctx_t ctx = ql_open(printer); + if (!ctx) + { + fprintf(stderr, "Unable to open '%s': %s\n", printer, strerror(errno)); + return EXIT_FAILURE; + } + + if (!ql_init(ctx)) + { + fprintf(stderr, "Failed to send initialisation sequence to printer: %s\n", + strerror(errno)); + return EXIT_FAILURE; + } + + if (!ql_request_status(ctx)) + { + fprintf(stderr, "Failed to request status from printer: %s\n", + strerror(errno)); + return EXIT_FAILURE; + } + + ql_status_t status = { 0, }; + if (!ql_read_status(ctx, &status)) + { + fprintf(stderr, "Failed to read status from printer: %s\n", + strerror(errno)); + return EXIT_FAILURE; + } + +/* +for (int i = 0; i < 32; ++i) + printf("%02hhx ", ((char *)&status)[i]); +printf("\n"); +*/ + + if (info_only) + { + ql_decode_print_status(stdout, &status, + QL_DECODE_MODEL | QL_DECODE_MEDIA | QL_DECODE_ERROR | QL_DECODE_MODE); + return EXIT_SUCCESS; + } + + if (margin >= 0 && !ql_set_margin(ctx, (uint16_t)margin)) + { + fprintf(stderr, "Failed to set margin: %s\n", strerror(errno)); + return EXIT_FAILURE; + } + if (autocut && + (!ql_set_mode(ctx, QL_MODE_AUTOCUT) || + !ql_set_autocut_every_n(ctx, argc - optind))) + { + fprintf(stderr, "Failed to set autocut: %s\n", strerror(errno)); + return EXIT_FAILURE; + } + + if (ql_needs_mode_switch(&status) && !ql_switch_to_raster_mode(ctx)) + { + fprintf(stderr, "Failed to set raster mode: %s\n", strerror(errno)); + return EXIT_FAILURE; + } + + signal(SIGALRM, on_alarm); + while (num--) + { + cfg.first_page = true; + for (int i = optind; i < argc; ++i) + { + ql_raster_image_t *img = loadpng(argv[i]); + if (!img) + { + fprintf(stderr, "Failed to load image '%s'\n", argv[i]); + return EXIT_FAILURE; + } +/* +for(int i = 0; i < img->height; ++i) +{ + for(int j = 0; j < img->width; ++j) + printf("%c", img->data[i*img->width + j] < cfg.threshold ? '#' : '.'); + printf("\n"); +} +*/ + if (!ql_print_raster_image(ctx, &status, img, &cfg)) + { + fprintf(stderr, "Failed to print '%s' (%ux%u)\n", + argv[i], img->width, img->height); + return EXIT_FAILURE; + } + alarm(5); + do { + if (!ql_read_status(ctx, &status)) + { + if (!timed_out) // try again, soon + { + usleep(50); + continue; + } + fprintf(stderr, "Printer stopped responding!\n"); + return EXIT_FAILURE; + } + if (status.err_info_1 || status.err_info_2) + { + fprintf(stderr, "Printer reported error(s): %s\n", + ql_decode_errors(&status)); + return EXIT_FAILURE; + } + } while (status.status_type != QL_STATUS_TYPE_PRINTING_DONE); + alarm(0); + + printf("%s (%ux%u) OK\n", argv[i], img->width, img->height); + + free(img); + cfg.first_page = false; + } + } + + ql_close(ctx); + + return EXIT_SUCCESS; +} |