rename part 1 -- files

1 files changed, 0 insertions, 398 deletions

diff --git a/filter/faxe.c b/filter/faxe.c
deleted file mode 100644
index e96c5ace..00000000
--- a/filter/faxe.c
+++ /dev/null
@@ -1,398 +0,0 @@
-#include <fitz.h>
-
-#include "faxe.h"
-#include "faxc.h"
-
-/* TODO: honor Rows param */
-
-typedef struct fz_faxe_s fz_faxe;
-
-struct fz_faxe_s
-{
-	fz_filter super;
-
-	int k;
-	int endofline;
-	int encodedbytealign;
-	int columns;
-	int endofblock;
-	int blackis1;
-
-	int stride;
-	int ridx;		/* how many rows in total */
-	int bidx;		/* how many bits are already used in out->wp */
-	unsigned char bsave;	/* partial byte saved between process() calls */
-
-	int stage;
-	int a0, c;		/* mid-line coding state */
-
-	unsigned char *ref;
-	unsigned char *src;
-};
-
-fz_error *
-fz_newfaxe(fz_filter **fp, fz_obj *params)
-{
-	fz_obj *obj;
-
-	FZ_NEWFILTER(fz_faxe, fax, faxe);
-
-	fax->ref = nil;
-	fax->src = nil;
-
-	fax->k = 0;
-	fax->endofline = 0;
-	fax->encodedbytealign = 0;
-	fax->columns = 1728;
-	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, "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->bidx = 0;
-	fax->ridx = 0;
-
-	fax->stage = 0;
-	fax->a0 = -1;
-	fax->c = 0;
-
-	fax->ref = fz_malloc(fax->stride);
-	if (!fax->ref) { fz_free(fax); return fz_outofmem; }
-
-	fax->src = fz_malloc(fax->stride);
-	if (!fax->src) { fz_free(fax); fz_free(fax->ref); return fz_outofmem; }
-
-	memset(fax->ref, 0, fax->stride);
-	memset(fax->src, 0, fax->stride);
-
-	return nil;
-}
-
-void
-fz_dropfaxe(fz_filter *p)
-{
-	fz_faxe *fax = (fz_faxe*) p;
-	fz_free(fax->src);
-	fz_free(fax->ref);
-}
-
-enum { codebytes = 2 };
-
-static inline int runbytes(int run)
-{
-	int m = (run / 64) / 40 + 1;	/* number of makeup codes */
-	return codebytes * (m + 1); /* bytes for makeup + term codes */
-}
-
-static void
-putbits(fz_faxe *fax, fz_buffer *out, int code, int nbits)
-{
-	while (nbits > 0)
-	{
-		if (fax->bidx == 0)
-			*out->wp = 0;
-
-		/* code does not fit: shift right */
-		if (nbits > (8 - fax->bidx))
-		{
-			*out->wp |= code >> (nbits - (8 - fax->bidx));
-			nbits = nbits - (8 - fax->bidx);
-			fax->bidx = 0;
-			out->wp ++;
-		}
-
-		/* shift left */
-		else
-		{
-			*out->wp |= code << ((8 - fax->bidx) - nbits);
-			fax->bidx += nbits;
-			if (fax->bidx == 8)
-			{
-				fax->bidx = 0;
-				out->wp ++;
-			}
-			nbits = 0;
-		}
-	}
-}
-
-static inline void
-putcode(fz_faxe *fax, fz_buffer *out, const cfe_code *run)
-{
-	putbits(fax, out, run->code, run->nbits);
-}
-
-static void
-putrun(fz_faxe *fax, fz_buffer *out, int run, int c)
-{
-	int m;
-
-	const cf_runs *codetable = c ? &cf_black_runs : &cf_white_runs;
-
-	if (run > 63)
-	{
-		m = run / 64;
-		while (m > 40)
-		{
-			putcode(fax, out, &codetable->makeup[40]);
-			m -= 40;
-		}
-		if (m > 0)
-		{
-			putcode(fax, out, &codetable->makeup[m]);
-		}
-		putcode(fax, out, &codetable->termination[run % 64]);
-	}
-	else
-	{
-		putcode(fax, out, &codetable->termination[run]);
-	}
-}
-
-static fz_error *
-enc1d(fz_faxe *fax, unsigned char *line, fz_buffer *out)
-{
-	int run;
-
-	if (fax->a0 < 0)
-		fax->a0 = 0;
-
-	while (fax->a0 < fax->columns)
-	{
-		run = getrun(line, fax->a0, fax->columns, fax->c);
-
-		if (out->wp + 1 + runbytes(run) > out->ep)
-			return fz_ioneedout;
-
-		putrun(fax, out, run, fax->c);
-
-		fax->a0 += run;
-		fax->c = !fax->c;
-	}
-
-	return 0;
-}
-
-static fz_error *
-enc2d(fz_faxe *fax, unsigned char *ref, unsigned char *src, fz_buffer *out)
-{
-	int a1, a2, b1, b2;
-	int run1, run2, n;
-
-	while (fax->a0 < fax->columns)
-	{
-		a1 = findchanging(src, fax->a0, fax->columns);
-		b1 = findchangingcolor(ref, fax->a0, fax->columns, !fax->c);
-		b2 = findchanging(ref, b1, fax->columns);
-
-		/* pass */
-		if (b2 < a1)
-		{
-			if (out->wp + 1 + codebytes > out->ep)
-				return fz_ioneedout;
-
-			putcode(fax, out, &cf2_run_pass);
-
-			fax->a0 = b2;
-		}
-
-		/* vertical */
-		else if (ABS(b1 - a1) <= 3)
-		{
-			if (out->wp + 1 + codebytes > out->ep)
-				return fz_ioneedout;
-
-			putcode(fax, out, &cf2_run_vertical[b1 - a1 + 3]);
-
-			fax->a0 = a1;
-			fax->c = !fax->c;
-		}
-
-		/* horizontal */
-		else
-		{
-			a2 = findchanging(src, a1, fax->columns);
-			run1 = a1 - fax->a0;
-			run2 = a2 - a1;
-			n = codebytes + runbytes(run1) + runbytes(run2);
-
-			if (out->wp + 1 + n > out->ep)
-				return fz_ioneedout;
-
-			putcode(fax, out, &cf2_run_horizontal);
-			putrun(fax, out, run1, fax->c);
-			putrun(fax, out, run2, !fax->c);
-
-			fax->a0 = a2;
-		}
-	}
-
-	return 0;
-}
-
-static fz_error *
-process(fz_faxe *fax, fz_buffer *in, fz_buffer *out)
-{
-	fz_error *error;
-	int i, n;
-
-	while (1)
-	{
-		if (in->rp == in->wp && in->eof)
-			goto rtc;
-
-		switch (fax->stage)
-		{
-		case 0:
-			if (fax->encodedbytealign)
-			{
-				if (fax->endofline)
-				{
-					if (out->wp + 1 + 1 > out->ep)
-						return fz_ioneedout;
-
-					/* make sure that EOL ends on a byte border */
-					putbits(fax, out, 0, (12 - fax->bidx) & 7);
-				}
-				else
-				{
-					if (fax->bidx)
-					{
-						if (out->wp + 1 > out->ep)
-							return fz_ioneedout;
-						fax->bidx = 0;
-						out->wp ++;
-					}
-				}
-			}
-
-			fax->stage ++;
-
-		case 1:
-			if (fax->endofline)
-			{
-				if (out->wp + 1 + codebytes + 1 > out->ep)
-					return fz_ioneedout;
-
-				if (fax->k > 0)
-				{
-					if (fax->ridx % fax->k == 0)
-						putcode(fax, out, &cf2_run_eol_1d);
-					else
-						putcode(fax, out, &cf2_run_eol_2d);
-				}
-				else
-				{
-					putcode(fax, out, &cf_run_eol);
-				}
-			}
-
-			fax->stage ++;
-
-		case 2:
-			if (in->rp + fax->stride > in->wp)
-			{
-				if (in->eof) /* XXX barf here? */
-					goto rtc;
-				return fz_ioneedin;
-			}
-
-			memcpy(fax->ref, fax->src, fax->stride);
-			memcpy(fax->src, in->rp, fax->stride);
-
-			if (!fax->blackis1)
-			{
-				for (i = 0; i < fax->stride; i++)
-					fax->src[i] = ~fax->src[i];
-			}
-
-			in->rp += fax->stride;
-
-			fax->c = 0;
-			fax->a0 = -1;
-
-			fax->stage ++;
-			
-		case 3:
-			error = 0; /* to silence compiler */
-
-			if (fax->k < 0)
-				error = enc2d(fax, fax->ref, fax->src, out);
-
-			else if (fax->k == 0)
-				error = enc1d(fax, fax->src, out);
-
-			else if (fax->k > 0)
-			{
-				if (fax->ridx % fax->k == 0)
-					error = enc1d(fax, fax->src, out);
-				else
-					error = enc2d(fax, fax->ref, fax->src, out);
-			}
-
-			if (error)
-				return error;
-
-			fax->ridx ++;
-
-			fax->stage = 0;
-		}
-	}
-
-rtc:
-	if (fax->endofblock)
-	{
-		n = fax->k < 0 ? 2 : 6;
-
-		if (out->wp + 1 + codebytes * n > out->ep)
-			return fz_ioneedout;
-
-		for (i = 0; i < n; i++)
-		{
-			putcode(fax, out, &cf_run_eol);
-			if (fax->k > 0)
-				putbits(fax, out, 1, 1);
-		}
-	}
-
-	if (fax->bidx)
-		out->wp ++;
-	out->eof = 1;
-
-	return fz_iodone;
-}
-
-fz_error *
-fz_processfaxe(fz_filter *p, fz_buffer *in, fz_buffer *out)
-{
-	fz_faxe *fax = (fz_faxe*) p;
-	fz_error *error;
-
-	/* restore partial bits */
-	*out->wp = fax->bsave;
-
-	error = process(fax, in, out);
-
-	/* save partial bits */
-	fax->bsave = *out->wp;
-
-	return error;
-}
-