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435a566751
* sumatrapdf - vendor import * everything compiles (libjpeg, poppler, fitz, sumatrapdf) * does NOT link (remove the comment tags in the parent directory.rbuild file (rosapps dir) to build it) svn path=/trunk/; revision=29295
66 lines
949 B
C
66 lines
949 B
C
#include "fitz-base.h"
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#include "fitz-stream.h"
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typedef struct fz_ahxe_s fz_ahxe;
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struct fz_ahxe_s
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{
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fz_filter super;
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int c;
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};
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static const char tohex[16] = "0123456789ABCDEF";
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fz_error *
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fz_newahxe(fz_filter **fp, fz_obj *params)
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{
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FZ_NEWFILTER(fz_ahxe, f, ahxe);
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f->c = 0;
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return nil;
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}
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void
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fz_dropahxe(fz_filter *f)
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{
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}
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fz_error *
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fz_processahxe(fz_filter *filter, fz_buffer *in, fz_buffer *out)
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{
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fz_ahxe *f = (fz_ahxe*)filter;
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int a, b, c;
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while (1)
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{
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if (in->rp == in->wp)
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goto needinput;
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if (out->wp + 2 >= out->ep) /* can write 3 bytes from 1 */
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return fz_ioneedout;
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c = *in->rp++;
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a = tohex[(c >> 4) & 0x0f];
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b = tohex[c & 0x0f];
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*out->wp++ = a;
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*out->wp++ = b;
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f->c += 2;
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if (f->c == 60) {
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*out->wp++ = '\n';
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f->c = 0;
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}
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}
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needinput:
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if (in->eof) {
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if (out->wp == out->ep)
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return fz_ioneedout;
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*out->wp++ = '>';
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out->eof = 1;
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return fz_iodone;
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}
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return fz_ioneedin;
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}
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