hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * cdjpeg.c |
| 3 | * |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 4 | * This file was part of the Independent JPEG Group's software: |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 5 | * Copyright (C) 1991-1997, Thomas G. Lane. |
Jonathan Wright | bbb8282 | 2020-11-25 13:36:43 +0000 | [diff] [blame] | 6 | * libjpeg-turbo Modifications: |
| 7 | * Copyright (C) 2019, D. R. Commander. |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 8 | * For conditions of distribution and use, see the accompanying README.ijg |
| 9 | * file. |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 10 | * |
| 11 | * This file contains common support routines used by the IJG application |
| 12 | * programs (cjpeg, djpeg, jpegtran). |
| 13 | */ |
| 14 | |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 15 | #include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ |
| 16 | #include <ctype.h> /* to declare isupper(), tolower() */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 17 | #ifdef USE_SETMODE |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 18 | #include <fcntl.h> /* to declare setmode()'s parameter macros */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 19 | /* If you have setmode() but not <io.h>, just delete this line: */ |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 20 | #include <io.h> /* to declare setmode() */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 21 | #endif |
| 22 | |
| 23 | |
| 24 | /* |
| 25 | * Optional progress monitor: display a percent-done figure on stderr. |
| 26 | */ |
| 27 | |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 28 | METHODDEF(void) |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 29 | progress_monitor(j_common_ptr cinfo) |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 30 | { |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 31 | cd_progress_ptr prog = (cd_progress_ptr)cinfo->progress; |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 32 | |
Jonathan Wright | bbb8282 | 2020-11-25 13:36:43 +0000 | [diff] [blame] | 33 | if (prog->max_scans != 0 && cinfo->is_decompressor) { |
| 34 | int scan_no = ((j_decompress_ptr)cinfo)->input_scan_number; |
| 35 | |
| 36 | if (scan_no > (int)prog->max_scans) { |
| 37 | fprintf(stderr, "Scan number %d exceeds maximum scans (%d)\n", scan_no, |
| 38 | prog->max_scans); |
| 39 | exit(EXIT_FAILURE); |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 40 | } |
Jonathan Wright | bbb8282 | 2020-11-25 13:36:43 +0000 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | if (prog->report) { |
| 44 | int total_passes = prog->pub.total_passes + prog->total_extra_passes; |
| 45 | int percent_done = |
| 46 | (int)(prog->pub.pass_counter * 100L / prog->pub.pass_limit); |
| 47 | |
| 48 | if (percent_done != prog->percent_done) { |
| 49 | prog->percent_done = percent_done; |
| 50 | if (total_passes > 1) { |
| 51 | fprintf(stderr, "\rPass %d/%d: %3d%% ", |
| 52 | prog->pub.completed_passes + prog->completed_extra_passes + 1, |
| 53 | total_passes, percent_done); |
| 54 | } else { |
| 55 | fprintf(stderr, "\r %3d%% ", percent_done); |
| 56 | } |
| 57 | fflush(stderr); |
| 58 | } |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 59 | } |
| 60 | } |
| 61 | |
| 62 | |
| 63 | GLOBAL(void) |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 64 | start_progress_monitor(j_common_ptr cinfo, cd_progress_ptr progress) |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 65 | { |
| 66 | /* Enable progress display, unless trace output is on */ |
| 67 | if (cinfo->err->trace_level == 0) { |
| 68 | progress->pub.progress_monitor = progress_monitor; |
| 69 | progress->completed_extra_passes = 0; |
| 70 | progress->total_extra_passes = 0; |
Jonathan Wright | bbb8282 | 2020-11-25 13:36:43 +0000 | [diff] [blame] | 71 | progress->max_scans = 0; |
| 72 | progress->report = FALSE; |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 73 | progress->percent_done = -1; |
| 74 | cinfo->progress = &progress->pub; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | |
| 79 | GLOBAL(void) |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 80 | end_progress_monitor(j_common_ptr cinfo) |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 81 | { |
| 82 | /* Clear away progress display */ |
| 83 | if (cinfo->err->trace_level == 0) { |
| 84 | fprintf(stderr, "\r \r"); |
| 85 | fflush(stderr); |
| 86 | } |
| 87 | } |
| 88 | |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 89 | |
| 90 | /* |
| 91 | * Case-insensitive matching of possibly-abbreviated keyword switches. |
| 92 | * keyword is the constant keyword (must be lower case already), |
| 93 | * minchars is length of minimum legal abbreviation. |
| 94 | */ |
| 95 | |
| 96 | GLOBAL(boolean) |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 97 | keymatch(char *arg, const char *keyword, int minchars) |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 98 | { |
| 99 | register int ca, ck; |
| 100 | register int nmatched = 0; |
| 101 | |
| 102 | while ((ca = *arg++) != '\0') { |
| 103 | if ((ck = *keyword++) == '\0') |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 104 | return FALSE; /* arg longer than keyword, no good */ |
| 105 | if (isupper(ca)) /* force arg to lcase (assume ck is already) */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 106 | ca = tolower(ca); |
| 107 | if (ca != ck) |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 108 | return FALSE; /* no good */ |
| 109 | nmatched++; /* count matched characters */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 110 | } |
| 111 | /* reached end of argument; fail if it's too short for unique abbrev */ |
| 112 | if (nmatched < minchars) |
| 113 | return FALSE; |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 114 | return TRUE; /* A-OK */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | |
| 118 | /* |
| 119 | * Routines to establish binary I/O mode for stdin and stdout. |
| 120 | * Non-Unix systems often require some hacking to get out of text mode. |
| 121 | */ |
| 122 | |
| 123 | GLOBAL(FILE *) |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 124 | read_stdin(void) |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 125 | { |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 126 | FILE *input_file = stdin; |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 127 | |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 128 | #ifdef USE_SETMODE /* need to hack file mode? */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 129 | setmode(fileno(stdin), O_BINARY); |
| 130 | #endif |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 131 | #ifdef USE_FDOPEN /* need to re-open in binary mode? */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 132 | if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) { |
| 133 | fprintf(stderr, "Cannot reopen stdin\n"); |
| 134 | exit(EXIT_FAILURE); |
| 135 | } |
| 136 | #endif |
| 137 | return input_file; |
| 138 | } |
| 139 | |
| 140 | |
| 141 | GLOBAL(FILE *) |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 142 | write_stdout(void) |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 143 | { |
Chris Blume | cca8c4d | 2019-03-01 01:09:50 -0800 | [diff] [blame] | 144 | FILE *output_file = stdout; |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 145 | |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 146 | #ifdef USE_SETMODE /* need to hack file mode? */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 147 | setmode(fileno(stdout), O_BINARY); |
| 148 | #endif |
Tom Hudson | 0d47d2d | 2016-05-04 13:22:56 -0400 | [diff] [blame] | 149 | #ifdef USE_FDOPEN /* need to re-open in binary mode? */ |
hbono@chromium.org | f0c4f33 | 2010-11-01 05:14:55 +0000 | [diff] [blame] | 150 | if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { |
| 151 | fprintf(stderr, "Cannot reopen stdout\n"); |
| 152 | exit(EXIT_FAILURE); |
| 153 | } |
| 154 | #endif |
| 155 | return output_file; |
| 156 | } |