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40 lines
819 B
C
40 lines
819 B
C
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/*
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* Extend libjpegs error handler to use setjmp/longjmp
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*/
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#include <jpeglib.h>
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#include <setjmp.h>
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struct myerrmgr
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{
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struct jpeg_error_mgr super;
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jmp_buf jb;
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char msg[JMSG_LENGTH_MAX];
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};
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static void myerrexit(j_common_ptr cinfo)
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{
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struct myerrmgr *err = (struct myerrmgr *)cinfo->err;
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char msgbuf[JMSG_LENGTH_MAX];
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err->super.format_message(cinfo, msgbuf);
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strlcpy(err->msg, msgbuf, sizeof err->msg);
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longjmp(err->jb, 1);
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}
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static void myoutmess(j_common_ptr cinfo)
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{
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struct myerrmgr *err = (struct myerrmgr *)cinfo->err;
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char msgbuf[JMSG_LENGTH_MAX];
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err->super.format_message(cinfo, msgbuf);
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fprintf(stderr, "ioerror: dct: %s", msgbuf);
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}
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static void myiniterr(struct myerrmgr *err)
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{
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jpeg_std_error(&err->super);
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err->super.error_exit = myerrexit;
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err->super.output_message = myoutmess;
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}
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