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;
-}
-