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authorTor Andersson <tor@ghostscript.com>2005-03-30 08:30:22 +0200
committerTor Andersson <tor@ghostscript.com>2005-03-30 08:30:22 +0200
commitee154f16bd09a43359967f7e7b86c3677c09461d (patch)
tree08896cfa9ff55e05bfe7855965c620d45115d4d5 /filter/ahxd.c
parent460ad7040d67a4a93a153f98095ff952a2b15d37 (diff)
downloadmupdf-ee154f16bd09a43359967f7e7b86c3677c09461d.tar.xz
rename part 1 -- files
Diffstat (limited to 'filter/ahxd.c')
-rw-r--r--filter/ahxd.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/filter/ahxd.c b/filter/ahxd.c
deleted file mode 100644
index d0e6d7f5..00000000
--- a/filter/ahxd.c
+++ /dev/null
@@ -1,112 +0,0 @@
-#include <fitz.h>
-
-typedef struct fz_ahxd_s fz_ahxd;
-
-struct fz_ahxd_s
-{
- fz_filter super;
- int odd;
- int a;
-};
-
-static inline int iswhite(int a)
-{
- switch (a) {
- case '\n': case '\r': case '\t': case ' ':
- case '\0': case '\f': case '\b': case 0177:
- return 1;
- }
- return 0;
-}
-
-static inline int ishex(int a)
-{
- return (a >= 'A' && a <= 'F') ||
- (a >= 'a' && a <= 'f') ||
- (a >= '0' && a <= '9');
-}
-
-static inline int fromhex(int a)
-{
- if (a >= 'A' && a <= 'F')
- return a - 'A' + 0xA;
- if (a >= 'a' && a <= 'f')
- return a - 'a' + 0xA;
- if (a >= '0' && a <= '9')
- return a - '0';
- return 0;
-}
-
-fz_error *
-fz_newahxd(fz_filter **fp, fz_obj *params)
-{
- FZ_NEWFILTER(fz_ahxd, f, ahxd);
- f->odd = 0;
- f->a = 0;
- return nil;
-}
-
-void
-fz_dropahxd(fz_filter *f)
-{
-}
-
-fz_error *
-fz_processahxd(fz_filter *filter, fz_buffer *in, fz_buffer *out)
-{
- fz_ahxd *f = (fz_ahxd*)filter;
- int b, c;
-
- while (1)
- {
- if (in->rp == in->wp)
- return fz_ioneedin;
-
- if (out->wp == out->ep)
- return fz_ioneedout;
-
- c = *in->rp++;
-
- if (ishex(c)) {
- if (!f->odd) {
- f->a = fromhex(c);
- f->odd = 1;
- }
- else {
- b = fromhex(c);
- *out->wp++ = (f->a << 4) | b;
- f->odd = 0;
- }
- }
-
- else if (c == '>') {
- if (f->odd)
- *out->wp++ = (f->a << 4);
- out->eof = 1;
- return fz_iodone;
- }
-
- else if (!iswhite(c)) {
- return fz_throw("ioerror: bad data in ahxd: '%c'", c);
- }
- }
-}
-
-void
-fz_pushbackahxd(fz_filter *filter, fz_buffer *in, fz_buffer *out, int n)
-{
- int k;
-
- assert(filter->process == fz_processahxd);
- assert(out->wp - n >= out->rp);
-
- k = 0;
- while (k < n * 2) {
- in->rp --;
- if (ishex(*in->rp))
- k ++;
- }
-
- out->wp -= n;
-}
-