1 files changed, 0 insertions, 202 deletions
diff --git a/fitz/res_halftone.c b/fitz/res_halftone.c
deleted file mode 100644
index 15aebead..00000000
--- a/fitz/res_halftone.c
+++ /dev/null
@@ -1,202 +0,0 @@
-#include "mupdf/fitz.h"
-
-fz_halftone *
-fz_new_halftone(fz_context *ctx, int comps)
-{
-	fz_halftone *ht;
-	int i;
-
-	ht = fz_malloc(ctx, sizeof(fz_halftone) + (comps-1)*sizeof(fz_pixmap *));
-	ht->refs = 1;
-	ht->n = comps;
-	for (i = 0; i < comps; i++)
-		ht->comp[i] = NULL;
-
-	return ht;
-}
-
-fz_halftone *
-fz_keep_halftone(fz_context *ctx, fz_halftone *ht)
-{
-	if (ht)
-		ht->refs++;
-	return ht;
-}
-
-void
-fz_drop_halftone(fz_context *ctx, fz_halftone *ht)
-{
-	int i;
-
-	if (!ht || --ht->refs != 0)
-		return;
-	for (i = 0; i < ht->n; i++)
-		fz_drop_pixmap(ctx, ht->comp[i]);
-	fz_free(ctx, ht);
-}
-
-/* Default mono halftone, lifted from Ghostscript. */
-/* The 0x00 entry has been changed to 0x01 to avoid problems with white
- * pixels appearing in the output; as we use < 0 should not appear in the
- * array. I think that gs scales this slighly and hence never actually uses
- * the raw values here. */
-static unsigned char mono_ht[] =
-{
-	0x0E, 0x8E, 0x2E, 0xAE, 0x06, 0x86, 0x26, 0xA6, 0x0C, 0x8C, 0x2C, 0xAC, 0x04, 0x84, 0x24, 0xA4,
-	0xCE, 0x4E, 0xEE, 0x6E, 0xC6, 0x46, 0xE6, 0x66, 0xCC, 0x4C, 0xEC, 0x6C, 0xC4, 0x44, 0xE4, 0x64,
-	0x3E, 0xBE, 0x1E, 0x9E, 0x36, 0xB6, 0x16, 0x96, 0x3C, 0xBC, 0x1C, 0x9C, 0x34, 0xB4, 0x14, 0x94,
-	0xFE, 0x7E, 0xDE, 0x5E, 0xF6, 0x76, 0xD6, 0x56, 0xFC, 0x7C, 0xDC, 0x5C, 0xF4, 0x74, 0xD4, 0x54,
-	0x01, 0x81, 0x21, 0xA1, 0x09, 0x89, 0x29, 0xA9, 0x03, 0x83, 0x23, 0xA3, 0x0B, 0x8B, 0x2B, 0xAB,
-	0xC1, 0x41, 0xE1, 0x61, 0xC9, 0x49, 0xE9, 0x69, 0xC3, 0x43, 0xE3, 0x63, 0xCB, 0x4B, 0xEB, 0x6B,
-	0x31, 0xB1, 0x11, 0x91, 0x39, 0xB9, 0x19, 0x99, 0x33, 0xB3, 0x13, 0x93, 0x3B, 0xBB, 0x1B, 0x9B,
-	0xF1, 0x71, 0xD1, 0x51, 0xF9, 0x79, 0xD9, 0x59, 0xF3, 0x73, 0xD3, 0x53, 0xFB, 0x7B, 0xDB, 0x5B,
-	0x0D, 0x8D, 0x2D, 0xAD, 0x05, 0x85, 0x25, 0xA5, 0x0F, 0x8F, 0x2F, 0xAF, 0x07, 0x87, 0x27, 0xA7,
-	0xCD, 0x4D, 0xED, 0x6D, 0xC5, 0x45, 0xE5, 0x65, 0xCF, 0x4F, 0xEF, 0x6F, 0xC7, 0x47, 0xE7, 0x67,
-	0x3D, 0xBD, 0x1D, 0x9D, 0x35, 0xB5, 0x15, 0x95, 0x3F, 0xBF, 0x1F, 0x9F, 0x37, 0xB7, 0x17, 0x97,
-	0xFD, 0x7D, 0xDD, 0x5D, 0xF5, 0x75, 0xD5, 0x55, 0xFF, 0x7F, 0xDF, 0x5F, 0xF7, 0x77, 0xD7, 0x57,
-	0x02, 0x82, 0x22, 0xA2, 0x0A, 0x8A, 0x2A, 0xAA, 0x01 /*0x00*/, 0x80, 0x20, 0xA0, 0x08, 0x88, 0x28, 0xA8,
-	0xC2, 0x42, 0xE2, 0x62, 0xCA, 0x4A, 0xEA, 0x6A, 0xC0, 0x40, 0xE0, 0x60, 0xC8, 0x48, 0xE8, 0x68,
-	0x32, 0xB2, 0x12, 0x92, 0x3A, 0xBA, 0x1A, 0x9A, 0x30, 0xB0, 0x10, 0x90, 0x38, 0xB8, 0x18, 0x98,
-	0xF2, 0x72, 0xD2, 0x52, 0xFA, 0x7A, 0xDA, 0x5A, 0xF0, 0x70, 0xD0, 0x50, 0xF8, 0x78, 0xD8, 0x58
-};
-
-fz_halftone *fz_default_halftone(fz_context *ctx, int num_comps)
-{
-	fz_halftone *ht = fz_new_halftone(ctx, num_comps);
-	assert(num_comps == 1); /* Only support 1 component for now */
-	ht->comp[0] = fz_new_pixmap_with_data(ctx, NULL, 16, 16, mono_ht);
-	return ht;
-}
-
-/* Finally, code to actually perform halftoning. */
-static void make_ht_line(unsigned char *buf, fz_halftone *ht, int x, int y, int w)
-{
-	/* FIXME: There is a potential optimisation here; in the case where
-	 * the LCM of the halftone tile widths is smaller than w, we could
-	 * form just one 'LCM' run, then copy it repeatedly.
-	 */
-	int k, n;
-	n = ht->n;
-	for (k = 0; k < n; k++)
-	{
-		fz_pixmap *tile = ht->comp[k];
-		unsigned char *b = buf++;
-		unsigned char *t;
-		unsigned char *tbase;
-		int px = x + tile->x;
-		int py = y + tile->y;
-		int tw = tile->w;
-		int th = tile->h;
-		int w2 = w;
-		int len;
-		px = px % tw;
-		if (px < 0)
-			px += tw;
-		py = py % th;
-		if (py < 0)
-			py += th;
-
-		assert(tile->n == 1);
-
-		/* Left hand section; from x to tile width */
-		tbase = tile->samples + (unsigned int)(py * tw);
-		t = tbase + px;
-		len = tw - px;
-		if (len > w2)
-			len = w2;
-		w2 -= len;
-		while (len--)
-		{
-			*b = *t++;
-			b += n;
-		}
-
-		/* Centre section - complete copies */
-		w2 -= tw;
-		while (w2 >= 0)
-		{
-			len = tw;
-			t = tbase;
-			while (len--)
-			{
-				*b = *t++;
-				b += n;
-			}
-			w2 -= tw;
-		}
-		w2 += tw;
-
-		/* Right hand section - stragglers */
-		t = tbase;
-		while (w2--)
-		{
-			*b = *t++;
-			b += n;
-		}
-	}
-}
-
-/* Inner mono thresholding code */
-static void do_threshold_1(unsigned char *ht_line, unsigned char *pixmap, unsigned char *out, int w)
-{
-	int bit = 0x80;
-	int h = 0;
-
-	do
-	{
-		if (*pixmap < *ht_line++)
-			h |= bit;
-		pixmap += 2; /* Skip the alpha */
-		bit >>= 1;
-		if (bit == 0)
-		{
-			*out++ = h;
-			h = 0;
-			bit = 0x80;
-		}
-
-	}
-	while (--w);
-	if (bit != 0x80)
-		*out++ = h;
-}
-
-fz_bitmap *fz_halftone_pixmap(fz_context *ctx, fz_pixmap *pix, fz_halftone *ht)
-{
-	fz_bitmap *out;
-	unsigned char *ht_line, *o, *p;
-	int w, h, x, y, n, pstride, ostride;
-	fz_halftone *ht_orig = ht;
-
-	if (!pix)
-		return NULL;
-
-	assert(pix->n == 2); /* Mono + Alpha */
-
-	n = pix->n-1; /* Remove alpha */
-	if (ht == NULL)
-	{
-		ht = fz_default_halftone(ctx, n);
-	}
-	ht_line = fz_malloc(ctx, pix->w * n);
-	out = fz_new_bitmap(ctx, pix->w, pix->h, n, pix->xres, pix->yres);
-	o = out->samples;
-	p = pix->samples;
-
-	h = pix->h;
-	x = pix->x;
-	y = pix->y;
-	w = pix->w;
-	ostride = out->stride;
-	pstride = pix->w * pix->n;
-	while (h--)
-	{
-		make_ht_line(ht_line, ht, x, y++, w);
-		do_threshold_1(ht_line, p, o, w);
-		o += ostride;
-		p += pstride;
-	}
-	if (!ht_orig)
-		fz_drop_halftone(ctx, ht);
-	return out;
-}