Index: third_party/libjpeg_turbo/cdjpeg.c |
=================================================================== |
--- third_party/libjpeg_turbo/cdjpeg.c (revision 0) |
+++ third_party/libjpeg_turbo/cdjpeg.c (revision 0) |
@@ -0,0 +1,181 @@ |
+/* |
+ * cdjpeg.c |
+ * |
+ * Copyright (C) 1991-1997, Thomas G. Lane. |
+ * This file is part of the Independent JPEG Group's software. |
+ * For conditions of distribution and use, see the accompanying README file. |
+ * |
+ * This file contains common support routines used by the IJG application |
+ * programs (cjpeg, djpeg, jpegtran). |
+ */ |
+ |
+#include "cdjpeg.h" /* Common decls for cjpeg/djpeg applications */ |
+#include <ctype.h> /* to declare isupper(), tolower() */ |
+#ifdef NEED_SIGNAL_CATCHER |
+#include <signal.h> /* to declare signal() */ |
+#endif |
+#ifdef USE_SETMODE |
+#include <fcntl.h> /* to declare setmode()'s parameter macros */ |
+/* If you have setmode() but not <io.h>, just delete this line: */ |
+#include <io.h> /* to declare setmode() */ |
+#endif |
+ |
+ |
+/* |
+ * Signal catcher to ensure that temporary files are removed before aborting. |
+ * NB: for Amiga Manx C this is actually a global routine named _abort(); |
+ * we put "#define signal_catcher _abort" in jconfig.h. Talk about bogus... |
+ */ |
+ |
+#ifdef NEED_SIGNAL_CATCHER |
+ |
+static j_common_ptr sig_cinfo; |
+ |
+void /* must be global for Manx C */ |
+signal_catcher (int signum) |
+{ |
+ if (sig_cinfo != NULL) { |
+ if (sig_cinfo->err != NULL) /* turn off trace output */ |
+ sig_cinfo->err->trace_level = 0; |
+ jpeg_destroy(sig_cinfo); /* clean up memory allocation & temp files */ |
+ } |
+ exit(EXIT_FAILURE); |
+} |
+ |
+ |
+GLOBAL(void) |
+enable_signal_catcher (j_common_ptr cinfo) |
+{ |
+ sig_cinfo = cinfo; |
+#ifdef SIGINT /* not all systems have SIGINT */ |
+ signal(SIGINT, signal_catcher); |
+#endif |
+#ifdef SIGTERM /* not all systems have SIGTERM */ |
+ signal(SIGTERM, signal_catcher); |
+#endif |
+} |
+ |
+#endif |
+ |
+ |
+/* |
+ * Optional progress monitor: display a percent-done figure on stderr. |
+ */ |
+ |
+#ifdef PROGRESS_REPORT |
+ |
+METHODDEF(void) |
+progress_monitor (j_common_ptr cinfo) |
+{ |
+ cd_progress_ptr prog = (cd_progress_ptr) cinfo->progress; |
+ int total_passes = prog->pub.total_passes + prog->total_extra_passes; |
+ int percent_done = (int) (prog->pub.pass_counter*100L/prog->pub.pass_limit); |
+ |
+ if (percent_done != prog->percent_done) { |
+ prog->percent_done = percent_done; |
+ if (total_passes > 1) { |
+ fprintf(stderr, "\rPass %d/%d: %3d%% ", |
+ prog->pub.completed_passes + prog->completed_extra_passes + 1, |
+ total_passes, percent_done); |
+ } else { |
+ fprintf(stderr, "\r %3d%% ", percent_done); |
+ } |
+ fflush(stderr); |
+ } |
+} |
+ |
+ |
+GLOBAL(void) |
+start_progress_monitor (j_common_ptr cinfo, cd_progress_ptr progress) |
+{ |
+ /* Enable progress display, unless trace output is on */ |
+ if (cinfo->err->trace_level == 0) { |
+ progress->pub.progress_monitor = progress_monitor; |
+ progress->completed_extra_passes = 0; |
+ progress->total_extra_passes = 0; |
+ progress->percent_done = -1; |
+ cinfo->progress = &progress->pub; |
+ } |
+} |
+ |
+ |
+GLOBAL(void) |
+end_progress_monitor (j_common_ptr cinfo) |
+{ |
+ /* Clear away progress display */ |
+ if (cinfo->err->trace_level == 0) { |
+ fprintf(stderr, "\r \r"); |
+ fflush(stderr); |
+ } |
+} |
+ |
+#endif |
+ |
+ |
+/* |
+ * Case-insensitive matching of possibly-abbreviated keyword switches. |
+ * keyword is the constant keyword (must be lower case already), |
+ * minchars is length of minimum legal abbreviation. |
+ */ |
+ |
+GLOBAL(boolean) |
+keymatch (char * arg, const char * keyword, int minchars) |
+{ |
+ register int ca, ck; |
+ register int nmatched = 0; |
+ |
+ while ((ca = *arg++) != '\0') { |
+ if ((ck = *keyword++) == '\0') |
+ return FALSE; /* arg longer than keyword, no good */ |
+ if (isupper(ca)) /* force arg to lcase (assume ck is already) */ |
+ ca = tolower(ca); |
+ if (ca != ck) |
+ return FALSE; /* no good */ |
+ nmatched++; /* count matched characters */ |
+ } |
+ /* reached end of argument; fail if it's too short for unique abbrev */ |
+ if (nmatched < minchars) |
+ return FALSE; |
+ return TRUE; /* A-OK */ |
+} |
+ |
+ |
+/* |
+ * Routines to establish binary I/O mode for stdin and stdout. |
+ * Non-Unix systems often require some hacking to get out of text mode. |
+ */ |
+ |
+GLOBAL(FILE *) |
+read_stdin (void) |
+{ |
+ FILE * input_file = stdin; |
+ |
+#ifdef USE_SETMODE /* need to hack file mode? */ |
+ setmode(fileno(stdin), O_BINARY); |
+#endif |
+#ifdef USE_FDOPEN /* need to re-open in binary mode? */ |
+ if ((input_file = fdopen(fileno(stdin), READ_BINARY)) == NULL) { |
+ fprintf(stderr, "Cannot reopen stdin\n"); |
+ exit(EXIT_FAILURE); |
+ } |
+#endif |
+ return input_file; |
+} |
+ |
+ |
+GLOBAL(FILE *) |
+write_stdout (void) |
+{ |
+ FILE * output_file = stdout; |
+ |
+#ifdef USE_SETMODE /* need to hack file mode? */ |
+ setmode(fileno(stdout), O_BINARY); |
+#endif |
+#ifdef USE_FDOPEN /* need to re-open in binary mode? */ |
+ if ((output_file = fdopen(fileno(stdout), WRITE_BINARY)) == NULL) { |
+ fprintf(stderr, "Cannot reopen stdout\n"); |
+ exit(EXIT_FAILURE); |
+ } |
+#endif |
+ return output_file; |
+} |