rename part 1 -- files

1 files changed, 0 insertions, 441 deletions

diff --git a/filter/faxd.c b/filter/faxd.c
deleted file mode 100644
index d8686a08..00000000
--- a/filter/faxd.c
+++ /dev/null
@@ -1,441 +0,0 @@
-#include <fitz.h>
-
-#include "faxd.h"
-#include "faxc.h"
-
-enum
-{
-	SNORMAL,	/* neutral state, waiting for any code */
-	SMAKEUP,	/* got a 1d makeup code, waiting for terminating code */
-	SEOL,		/* at eol, needs output buffer space */
-	SH1, SH2	/* in H part 1 and 2 (both makeup and terminating codes) */
-};
-
-/* TODO: uncompressed */
-
-typedef struct fz_faxd_s fz_faxd;
-
-struct fz_faxd_s
-{
-	fz_filter super;
-	
-	int k;
-	int endofline;
-	int encodedbytealign;
-	int columns;
-	int rows;
-	int endofblock;
-	int blackis1;
-
-	int stride;
-	int ridx;
-
-	int bidx;
-	unsigned int word;
-
-	int stage, a, c, dim, eolc;
-	unsigned char *ref;
-	unsigned char *dst;
-};
-
-fz_error *
-fz_newfaxd(fz_filter **fp, fz_obj *params)
-{
-	fz_obj *obj;
-
-	FZ_NEWFILTER(fz_faxd, fax, faxd);
-
-	fax->ref = nil;
-	fax->dst = nil;
-
-	fax->k = 0;
-	fax->endofline = 0;
-	fax->encodedbytealign = 0;
-	fax->columns = 1728;
-	fax->rows = 0;
-	fax->endofblock = 1;
-	fax->blackis1 = 0;
-
-	obj = fz_dictgets(params, "K");
-	if (obj) fax->k = fz_toint(obj);
-
-	obj = fz_dictgets(params, "EndOfLine");
-	if (obj) fax->endofline = fz_tobool(obj);
-
-	obj = fz_dictgets(params, "EncodedByteAlign");
-	if (obj) fax->encodedbytealign = fz_tobool(obj);
-
-	obj = fz_dictgets(params, "Columns");
-	if (obj) fax->columns = fz_toint(obj);
-
-	obj = fz_dictgets(params, "Rows");
-	if (obj) fax->rows = fz_toint(obj);
-
-	obj = fz_dictgets(params, "EndOfBlock");
-	if (obj) fax->endofblock = fz_tobool(obj);
-
-	obj = fz_dictgets(params, "BlackIs1");
-	if (obj) fax->blackis1 = fz_tobool(obj);
-
-	fax->stride = ((fax->columns - 1) >> 3) + 1;
-	fax->ridx = 0;
-	fax->bidx = 32;
-	fax->word = 0;
-
-	fax->stage = SNORMAL;
-	fax->a = -1;
-	fax->c = 0;
-	fax->dim = fax->k < 0 ? 2 : 1;
-	fax->eolc = 0;
-
-	fax->ref = fz_malloc(fax->stride);
-	if (!fax->ref) { fz_free(fax); return fz_outofmem; }
-
-	fax->dst = fz_malloc(fax->stride);
-	if (!fax->dst) { fz_free(fax); fz_free(fax->ref); return fz_outofmem; }
-
-	memset(fax->ref, 0, fax->stride);
-	memset(fax->dst, 0, fax->stride);
-
-	return nil;
-}
-
-void
-fz_dropfaxd(fz_filter *p)
-{
-	fz_faxd *fax = (fz_faxd*) p;
-	fz_free(fax->ref);
-	fz_free(fax->dst);
-}
-
-static inline void eatbits(fz_faxd *fax, int nbits)
-{
-	fax->word <<= nbits;
-	fax->bidx += nbits;
-}
-
-static inline fz_error * fillbits(fz_faxd *fax, fz_buffer *in)
-{
-	while (fax->bidx >= 8)
-	{
-		if (in->rp + 1 > in->wp)
-			return fz_ioneedin;
-		fax->bidx -= 8;
-		fax->word |= *in->rp << fax->bidx;
-		in->rp ++;
-	}
-	return nil;
-}
-
-static int
-getcode(fz_faxd *fax, const cfd_node *table, int initialbits)
-{
-	unsigned int word = fax->word;
-	int tidx = word >> (32 - initialbits);
-	int val = table[tidx].val;
-	int nbits = table[tidx].nbits;
-
-	if (nbits > initialbits)
-	{
-		int mask = (1 << (32 - initialbits)) - 1;
-		tidx = val + ((word & mask) >> (32 - nbits));
-		val = table[tidx].val;
-		nbits = initialbits + table[tidx].nbits;
-	}
-
-	eatbits(fax, nbits);
-
-	return val;
-}
-
-/* decode one 1d code */
-static fz_error *
-dec1d(fz_faxd *fax)
-{
-	int code;
-
-	if (fax->a == -1)
-		fax->a = 0;
-
-	if (fax->c)
-		code = getcode(fax, cf_black_decode, cfd_black_initial_bits);
-	else
-		code = getcode(fax, cf_white_decode, cfd_white_initial_bits);
-
-	if (code == UNCOMPRESSED)
-		return fz_throw("ioerror: uncompressed data in faxd");
-
-	if (code < 0)
-		return fz_throw("ioerror: invalid 1d code in faxd");
-
-	if (fax->a + code > fax->columns)
-		return fz_throw("ioerror: invalid 1d data in faxd");
-
-	if (fax->c)
-		setbits(fax->dst, fax->a, fax->a + code);
-
-	fax->a += code;
-
-	if (code < 64)
-	{
-		fax->c = !fax->c;
-		fax->stage = SNORMAL;
-	}
-	else
-		fax->stage = SMAKEUP;
-
-	return nil;
-}
-
-/* decode one 2d code */
-static fz_error *
-dec2d(fz_faxd *fax)
-{
-	int code, b1, b2;
-
-	if (fax->stage == SH1 || fax->stage == SH2)
-	{
-		if (fax->a == -1)
-			fax->a = 0;
-
-		if (fax->c)
-			code = getcode(fax, cf_black_decode, cfd_black_initial_bits);
-		else
-			code = getcode(fax, cf_white_decode, cfd_white_initial_bits);
-
-		if (code == UNCOMPRESSED)
-			return fz_throw("ioerror: uncompressed data in faxd");
-
-		if (code < 0)
-			return fz_throw("ioerror: invalid 2d code in faxd");
-
-		if (fax->a + code > fax->columns)
-			return fz_throw("ioerror: invalid 2d data in faxd");
-
-		if (fax->c)
-			setbits(fax->dst, fax->a, fax->a + code);
-
-		fax->a += code;
-
-		if (code < 64)
-		{
-			fax->c = !fax->c;
-			if (fax->stage == SH1)
-				fax->stage = SH2;
-			else if (fax->stage == SH2)
-				fax->stage = SNORMAL;
-		}
-
-		return nil;
-	}
-
-	code = getcode(fax, cf_2d_decode, cfd_2d_initial_bits);
-
-	switch (code)
-	{
-		case H:
-			fax->stage = SH1;
-			break;
-
-		case P:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			b2 = findchanging(fax->ref, b1, fax->columns);
-			if (fax->c) setbits(fax->dst, fax->a, b2);
-			fax->a = b2;
-			break;
-
-		case V0:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			if (fax->c) setbits(fax->dst, fax->a, b1);
-			fax->a = b1;
-			fax->c = !fax->c;
-			break;
-
-		case VR1:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			if (fax->c) setbits(fax->dst, fax->a, b1 + 1);
-			fax->a = b1 + 1;
-			fax->c = !fax->c;
-			break;
-
-		case VR2:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			if (fax->c) setbits(fax->dst, fax->a, b1 + 2);
-			fax->a = b1 + 2;
-			fax->c = !fax->c;
-			break;
-
-		case VR3:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			if (fax->c) setbits(fax->dst, fax->a, b1 + 3);
-			fax->a = b1 + 3;
-			fax->c = !fax->c;
-			break;
-
-		case VL1:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			if (fax->c) setbits(fax->dst, fax->a, b1 - 1);
-			fax->a = b1 - 1;
-			fax->c = !fax->c;
-			break;
-
-		case VL2:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			if (fax->c) setbits(fax->dst, fax->a, b1 - 2);
-			fax->a = b1 - 2;
-			fax->c = !fax->c;
-			break;
-
-		case VL3:
-			b1 = findchangingcolor(fax->ref, fax->a, fax->columns, !fax->c);
-			if (fax->c) setbits(fax->dst, fax->a, b1 - 3);
-			fax->a = b1 - 3;
-			fax->c = !fax->c;
-			break;
-
-		case UNCOMPRESSED:
-			return fz_throw("ioerror: uncompressed data in faxd");
-
-		case ERROR:
-			return fz_throw("ioerror: invalid 2d code in faxd");
-
-		default:
-			return fz_throw("ioerror: invalid 2d code in faxd (%d)", code);
-	}
-
-	return 0;
-}
-
-fz_error *
-fz_processfaxd(fz_filter *f, fz_buffer *in, fz_buffer *out)
-{
-	fz_faxd *fax = (fz_faxd*)f;
-	fz_error *error;
-	int i;
-
-	if (fax->stage == SEOL)
-		goto eol;
-
-loop:
-
-	if (fillbits(fax, in))
-	{
-		if (in->eof)
-		{
-			if (fax->bidx > 31)
-			{
-				if (fax->a > 0)
-					goto eol;
-				goto rtc;
-			}
-		}
-		else
-		{
-			return fz_ioneedin;
-		}
-	}
-
-	if ((fax->word >> (32 - 12)) == 0)
-	{
-		eatbits(fax, 1);
-		goto loop;
-	}
-
-	if ((fax->word >> (32 - 12)) == 1)
-	{
-		eatbits(fax, 12);
-		fax->eolc ++;
-
-		if (fax->k > 0)
-		{
-			if ((fax->word >> (32 - 1)) == 1)
-				fax->dim = 1;
-			else
-				fax->dim = 2;
-			eatbits(fax, 1);
-		}
-	}
-	else if (fax->dim == 1)
-	{
-		fax->eolc = 0;
-		error = dec1d(fax);
-		if (error) return error;
-
-	}
-	else if (fax->dim == 2)
-	{
-		fax->eolc = 0;
-		error = dec2d(fax);
-		if (error) return error;
-	}
-
-	/* no eol check after makeup codes nor in the middle of an H code */
-	if (fax->stage == SMAKEUP || fax->stage == SH1 || fax->stage == SH2)
-		goto loop;
-
-	/* check for eol conditions */
-	if (fax->eolc || fax->a >= fax->columns)
-	{
-		if (fax->a > 0)
-			goto eol;
-		if (fax->eolc == (fax->k < 0 ? 2 : 6))
-			goto rtc;
-	}
-
-	goto loop;
-
-eol:
-	fax->stage = SEOL;
-	if (out->wp + fax->stride > out->ep)
-		return fz_ioneedout;
-
-	if (fax->blackis1)
-		memcpy(out->wp, fax->dst, fax->stride);
-	else
-		for (i = 0; i < fax->stride; i++)
-			out->wp[i] = ~fax->dst[i];
-
-	memcpy(fax->ref, fax->dst, fax->stride);
-	memset(fax->dst, 0, fax->stride);
-	out->wp += fax->stride;
-
-	fax->stage = SNORMAL;
-	fax->c = 0;
-	fax->a = -1;
-	fax->ridx ++;
-
-	if (!fax->endofblock && fax->rows)
-	{
-		if (fax->ridx >= fax->rows)
-			goto rtc;
-	}
-
-	/* we have not read dim from eol, make a guess */
-	if (fax->k > 0 && !fax->eolc)
-	{
-		if (fax->ridx % fax->k == 0)
-			fax->dim = 1;
-		else
-			fax->dim = 2;
-	}
-
-	/* if endofline & encodedbytealign, EOLs are *not* optional */
-	if (fax->encodedbytealign)
-	{
-		if (fax->endofline)
-			eatbits(fax, (12 - fax->bidx) & 7);
-		else
-			eatbits(fax, (8 - fax->bidx) & 7);
-	}
-
-	goto loop;
-
-rtc:
-	i = (32 - fax->bidx) / 8;
-	while (i-- && in->rp > in->bp)
-		in->rp --;
-
-	out->eof = 1;
-	return fz_iodone;
-}
-