Purge unused functions.

14 files changed, 3 insertions, 363 deletions

diff --git a/source/fitz/color-lcms.c b/source/fitz/color-lcms.c
index 93a5e415..9efbb0b3 100644
--- a/source/fitz/color-lcms.c
+++ b/source/fitz/color-lcms.c
@@ -356,6 +356,5 @@ fz_cmm_engine fz_cmm_engine_lcms = {
 	fz_lcms_fin_link,
 	fz_lcms_init_profile,
 	fz_lcms_fin_profile,
-	cmsFLAGS_NOWHITEONWHITEFIXUP
 };
 #endif
diff --git a/source/fitz/colorspace-imp.h b/source/fitz/colorspace-imp.h
index 5fd1ffd0..8f3b85f6 100644
--- a/source/fitz/colorspace-imp.h
+++ b/source/fitz/colorspace-imp.h
@@ -12,7 +12,6 @@
 #define FZ_ICC_PROFILE_CMYK "DeviceCMYK"
 #define FZ_ICC_PROFILE_LAB "Lab"
 
-int fz_cmm_avoid_white_fix_flag(fz_context *ctx);
 void fz_cmm_transform_pixmap(fz_context *ctx, fz_icclink *link, fz_pixmap *dst, fz_pixmap *src);
 void fz_cmm_transform_color(fz_context *ctx, fz_icclink *link, unsigned short *dst, const unsigned short *src);
 void fz_cmm_init_link(fz_context *ctx, fz_icclink *link, const fz_iccprofile *dst, int dst_extras, const fz_iccprofile *src, int src_extras, const fz_iccprofile *prf, const fz_color_params *rend, int cmm_flags, int num_bytes, int copy_spots);
diff --git a/source/fitz/colorspace.c b/source/fitz/colorspace.c
index cb35d54f..5d08b808 100644
--- a/source/fitz/colorspace.c
+++ b/source/fitz/colorspace.c
@@ -91,14 +91,6 @@ int fz_colorspace_device_n_has_cmyk(fz_context *ctx, const fz_colorspace *cs)
 
 /* CMM module */
 
-int
-fz_cmm_avoid_white_fix_flag(fz_context *ctx)
-{
-	if (ctx && ctx->colorspace && ctx->colorspace->cmm && ctx->cmm_instance)
-		return ctx->colorspace->cmm->avoid_white_fix_flag;
-	return 0;
-}
-
 void
 fz_cmm_transform_pixmap(fz_context *ctx, fz_icclink *link, fz_pixmap *dst, fz_pixmap *src)
 {
@@ -3746,18 +3738,6 @@ clamp_default_icc(const fz_colorspace *cs, const float *src, float *dst)
 		dst[i] = fz_clamp(src[i], 0, 1);
 }
 
-void fz_set_icc_bgr(fz_context *ctx, fz_colorspace *cs)
-{
-	fz_iccprofile *profile;
-
-	if (cs == NULL || !fz_colorspace_is_icc(ctx, cs))
-		return;
-
-	profile = cs->data;
-	profile->bgr = 1;
-	return;
-}
-
 fz_colorspace *
 fz_new_icc_colorspace(fz_context *ctx, const char *name, int num, fz_buffer *buf)
 {
diff --git a/source/fitz/context.c b/source/fitz/context.c
index 67fef05b..77b6d18a 100644
--- a/source/fitz/context.c
+++ b/source/fitz/context.c
@@ -5,37 +5,6 @@
 #include <stdio.h>
 #include <time.h>
 
-struct fz_id_context_s
-{
-	int refs;
-	int id;
-};
-
-static void
-fz_drop_id_context(fz_context *ctx)
-{
-	if (!ctx)
-		return;
-	if (fz_drop_imp(ctx, ctx->id, &ctx->id->refs))
-		fz_free(ctx, ctx->id);
-}
-
-static void
-fz_new_id_context(fz_context *ctx)
-{
-	ctx->id = fz_malloc_struct(ctx, fz_id_context);
-	ctx->id->refs = 1;
-	ctx->id->id = 0;
-}
-
-static fz_id_context *
-fz_keep_id_context(fz_context *ctx)
-{
-	if (!ctx)
-		return NULL;
-	return fz_keep_imp(ctx, ctx->id, &ctx->id->refs);
-}
-
 struct fz_style_context_s
 {
 	int refs;
@@ -165,7 +134,6 @@ fz_drop_context(fz_context *ctx)
 	fz_drop_colorspace_context(ctx);
 	fz_drop_cmm_context(ctx);
 	fz_drop_font_context(ctx);
-	fz_drop_id_context(ctx);
 	fz_drop_output_context(ctx);
 
 	if (ctx->warn)
@@ -263,7 +231,6 @@ fz_new_context_imp(const fz_alloc_context *alloc, const fz_locks_context *locks,
 		fz_new_cmm_context(ctx);
 		fz_new_colorspace_context(ctx);
 		fz_new_font_context(ctx);
-		fz_new_id_context(ctx);
 		fz_new_document_handler_context(ctx);
 		fz_new_style_context(ctx);
 		fz_new_tuning_context(ctx);
@@ -318,8 +285,6 @@ fz_clone_context_internal(fz_context *ctx)
 	new_ctx->font = fz_keep_font_context(new_ctx);
 	new_ctx->style = ctx->style;
 	new_ctx->style = fz_keep_style_context(new_ctx);
-	new_ctx->id = ctx->id;
-	new_ctx->id = fz_keep_id_context(new_ctx);
 	new_ctx->tuning = ctx->tuning;
 	new_ctx->tuning = fz_keep_tuning_context(new_ctx);
 	memcpy(new_ctx->seed48, ctx->seed48, sizeof ctx->seed48);
@@ -329,19 +294,6 @@ fz_clone_context_internal(fz_context *ctx)
 	return new_ctx;
 }
 
-int
-fz_gen_id(fz_context *ctx)
-{
-	int id;
-	fz_lock(ctx, FZ_LOCK_ALLOC);
-	/* We'll never wrap around in normal use, but if we do, then avoid 0. */
-	do
-		id = ++ctx->id->id;
-	while (id == 0);
-	fz_unlock(ctx, FZ_LOCK_ALLOC);
-	return id;
-}
-
 void fz_set_user_context(fz_context *ctx, void *user)
 {
 	if (ctx != NULL)
diff --git a/source/fitz/filter-basic.c b/source/fitz/filter-basic.c
index f558f43b..5e03a176 100644
--- a/source/fitz/filter-basic.c
+++ b/source/fitz/filter-basic.c
@@ -2,14 +2,6 @@
 
 #include <string.h>
 
-/* Pretend we have a filter that just copies data forever */
-
-fz_stream *
-fz_open_copy(fz_context *ctx, fz_stream *chain)
-{
-	return fz_keep_stream(ctx, chain);
-}
-
 /* Null filter copies a specified amount of data */
 
 struct null_filter
diff --git a/source/fitz/jmemcust.c b/source/fitz/jmemcust.c
index d5318026..d0cb3048 100644
--- a/source/fitz/jmemcust.c
+++ b/source/fitz/jmemcust.c
@@ -155,14 +155,4 @@ jpeg_cust_mem_init(jpeg_cust_mem_data *custm, void *priv,
 	return lcustm;
 }
 
-GLOBAL(jpeg_cust_mem_data *)
-jpeg_cust_mem_set_private(jpeg_cust_mem_data *custm, void *priv)
-{
-	if (custm)
-	{
-		custm->priv = priv;
-	}
-	return custm;
-}
-
 #endif /* !defined(SHARE_JPEG) || SHARE_JPEG==0 */
diff --git a/source/fitz/jmemcust.h b/source/fitz/jmemcust.h
index 6e5f6ead..9447fd4d 100644
--- a/source/fitz/jmemcust.h
+++ b/source/fitz/jmemcust.h
@@ -46,6 +46,3 @@ GLOBAL(jpeg_cust_mem_data *)
 			j_cust_mem_get_large_ptr get_large,
 			j_custmem_free_large_ptr free_large,
 			j_custmem_open_backing_store_ptr open_backing_store);
-
-GLOBAL(jpeg_cust_mem_data *)
-	jpeg_cust_mem_set_private(jpeg_cust_mem_data *custm, void *priv);
diff --git a/source/fitz/memory.c b/source/fitz/memory.c
index ad5b69aa..09df7cda 100644
--- a/source/fitz/memory.c
+++ b/source/fitz/memory.c
@@ -212,16 +212,6 @@ fz_strdup(fz_context *ctx, const char *s)
 	return ns;
 }
 
-char *
-fz_strdup_no_throw(fz_context *ctx, const char *s)
-{
-	size_t len = strlen(s) + 1;
-	char *ns = fz_malloc_no_throw(ctx, len);
-	if (ns)
-		memcpy(ns, s, len);
-	return ns;
-}
-
 static void *
 fz_malloc_default(void *opaque, size_t size)
 {
diff --git a/source/fitz/pixmap.c b/source/fitz/pixmap.c
index a0abb5de..9159fea0 100644
--- a/source/fitz/pixmap.c
+++ b/source/fitz/pixmap.c
@@ -727,31 +727,6 @@ fz_premultiply_pixmap(fz_context *ctx, fz_pixmap *pix)
 	}
 }
 
-void
-fz_unmultiply_pixmap(fz_context *ctx, fz_pixmap *pix)
-{
-	unsigned char *s = pix->samples;
-	int a, inva;
-	int k, x, y;
-	int stride = pix->stride - pix->w * pix->n;
-
-	if (!pix->alpha)
-		return;
-
-	for (y = 0; y < pix->h; y++)
-	{
-		for (x = 0; x < pix->w; x++)
-		{
-			a = s[pix->n - 1];
-			inva = a ? 255 * 256 / a : 0;
-			for (k = 0; k < pix->n - 1; k++)
-				s[k] = (s[k] * inva) >> 8;
-			s += pix->n;
-		}
-		s += stride;
-	}
-}
-
 fz_pixmap *
 fz_alpha_from_gray(fz_context *ctx, fz_pixmap *gray)
 {
diff --git a/source/fitz/separation.c b/source/fitz/separation.c
index fe1530a7..c0f01f28 100644
--- a/source/fitz/separation.c
+++ b/source/fitz/separation.c
@@ -89,11 +89,6 @@ void fz_add_separation_equivalents(fz_context *ctx, fz_separations *sep, uint32_
 	sep->num_separations++;
 }
 
-int fz_separations_controllable(fz_context *ctx, const fz_separations *sep)
-{
-	return (!sep || sep->controllable);
-}
-
 void fz_set_separation_behavior(fz_context *ctx, fz_separations *sep, int separation, fz_separation_behavior beh)
 {
 	int shift;
@@ -147,20 +142,6 @@ fz_separation_behavior fz_separation_current_behavior(fz_context *ctx, const fz_
 	return beh;
 }
 
-int fz_separations_all_composite(fz_context *ctx, const fz_separations *sep)
-{
-	int i;
-
-	if (!sep)
-		return 1;
-
-	for (i = 0; i < (FZ_MAX_SEPARATIONS + 31) / 32; i++)
-		if (sep_state(sep, i) != FZ_SEPARATION_COMPOSITE)
-			return 0;
-
-	return 1;
-}
-
 const char *fz_separation_name(fz_context *ctx, const fz_separations *sep, int separation)
 {
 	if (!sep || separation < 0 || separation >= sep->num_separations)
diff --git a/source/fitz/stext-search.c b/source/fitz/stext-search.c
index 3e2d08df..b73296e3 100644
--- a/source/fitz/stext-search.c
+++ b/source/fitz/stext-search.c
@@ -4,59 +4,6 @@
 #include <limits.h>
 #include <assert.h>
 
-int fz_stext_char_count(fz_context *ctx, fz_stext_page *page)
-{
-	fz_stext_block *block;
-	fz_stext_line *line;
-	fz_stext_char *ch;
-	int len = 0;
-
-	for (block = page->first_block; block; block = block->next)
-	{
-		if (block->type != FZ_STEXT_BLOCK_TEXT)
-			continue;
-		for (line = block->u.t.first_line; line; line = line->next)
-		{
-			for (ch = line->first_char; ch; ch = ch->next)
-				++len;
-			++len; /* pseudo-newline */
-		}
-	}
-
-	return len;
-}
-
-const fz_stext_char *fz_stext_char_at(fz_context *ctx, fz_stext_page *page, int idx)
-{
-	static const fz_stext_char space = { ' ', {0,0}, {0,0,0,0}, 0, NULL, NULL };
-	static const fz_stext_char zero = { '\0', {0,0}, {0,0,0,0}, 0, NULL, NULL };
-	fz_stext_block *block;
-	fz_stext_line *line;
-	fz_stext_char *ch;
-	int ofs = 0;
-
-	for (block = page->first_block; block; block = block->next)
-	{
-		if (block->type != FZ_STEXT_BLOCK_TEXT)
-			continue;
-		for (line = block->u.t.first_line; line; line = line->next)
-		{
-			for (ch = line->first_char; ch; ch = ch->next)
-			{
-				if (ofs == idx)
-					return ch;
-				++ofs;
-			}
-
-			/* pseudo-newline */
-			if (idx == ofs)
-				return &space;
-			++ofs;
-		}
-	}
-	return &zero;
-}
-
 /* Enumerate marked selection */
 
 static float dist2(float a, float b)
diff --git a/source/fitz/strtof.c b/source/fitz/strtof.c
index 2786a794..83679a75 100644
--- a/source/fitz/strtof.c
+++ b/source/fitz/strtof.c
@@ -332,8 +332,8 @@ starts_with(const char **s, const char *string)
 			*tailptr = (char *) s;	\
 	while (0)
 
-static float
-strtof_internal(const char *string, char **tailptr, int exp_format)
+float
+fz_strtof(const char *string, char **tailptr)
 {
 	/* FIXME: error (1/2 + 1/256) ulp  */
 	const char *s;
@@ -421,7 +421,7 @@ strtof_internal(const char *string, char **tailptr, int exp_format)
 	}
 
 	/* Parse exponent. */
-	if (exp_format && (*s == 'e' || *s == 'E'))
+	if (*s == 'e' || *s == 'E')
 	{
 		int exp_negative = 0;
 		int exp = 0;
@@ -457,15 +457,3 @@ strtof_internal(const char *string, char **tailptr, int exp_format)
 	SET_TAILPTR(tailptr, s);
 	return scale_integer_to_float(M, N, negative);
 }
-
-float
-fz_strtof(const char *string, char **tailptr)
-{
-	return strtof_internal(string, tailptr, 1);
-}
-
-float
-fz_strtof_no_exp(const char *string, char **tailptr)
-{
-	return strtof_internal(string, tailptr, 0);
-}
diff --git a/source/fitz/text.c b/source/fitz/text.c
index 8a01e550..90698125 100644
--- a/source/fitz/text.c
+++ b/source/fitz/text.c
@@ -171,56 +171,6 @@ fz_bound_text(fz_context *ctx, const fz_text *text, const fz_stroke_state *strok
 	return bbox;
 }
 
-fz_text *
-fz_clone_text(fz_context *ctx, const fz_text *text)
-{
-	fz_text *new_text;
-	fz_text_span *span;
-	fz_text_span **tail;
-
-	new_text = fz_malloc_struct(ctx, fz_text);
-	new_text->refs = 1;
-	span = text->head;
-	tail = &new_text->head;
-
-	fz_var(span);
-
-	fz_try(ctx)
-	{
-		while (span != NULL)
-		{
-			fz_text_span *new_span = fz_malloc_struct(ctx, fz_text_span);
-			*tail = new_span;
-			tail = &new_span->next;
-			new_text->tail = new_span;
-			new_span->font = fz_keep_font(ctx, span->font);
-			new_span->trm = span->trm;
-			new_span->wmode = span->wmode;
-			new_span->len = span->len;
-			new_span->cap = span->len;
-			new_span->items = fz_malloc(ctx, span->len * sizeof(*span->items));
-			memcpy(new_span->items, span->items, span->len * sizeof(*span->items));
-			span = span->next;
-		}
-	}
-	fz_catch(ctx)
-	{
-		span = new_text->head;
-		while (span != NULL)
-		{
-			fz_text_span *next = span->next;
-			fz_drop_font(ctx, span->font);
-			fz_free(ctx, span->items);
-			fz_free(ctx, span);
-			span = next;
-		}
-		fz_free(ctx, new_text);
-		fz_rethrow(ctx);
-	}
-
-	return new_text;
-}
-
 fz_text_language fz_text_language_from_string(const char *str)
 {
 	fz_text_language lang;
diff --git a/source/pdf/pdf-parse.c b/source/pdf/pdf-parse.c
index 104b117d..f4075c5a 100644
--- a/source/pdf/pdf-parse.c
+++ b/source/pdf/pdf-parse.c
@@ -208,106 +208,6 @@ pdf_load_stream_or_string_as_utf8(fz_context *ctx, pdf_obj *src)
 	return pdf_to_utf8(ctx, src);
 }
 
-/* Convert Unicode/PdfDocEncoding string into ucs-2 */
-unsigned short *
-pdf_to_ucs2(fz_context *ctx, pdf_obj *src)
-{
-	unsigned char *srcptr = (unsigned char *) pdf_to_str_buf(ctx, src);
-	unsigned short *dstptr, *dst;
-	int srclen = pdf_to_str_len(ctx, src);
-	int i;
-
-	if (srclen >= 2 && srcptr[0] == 254 && srcptr[1] == 255)
-	{
-		dstptr = dst = fz_malloc_array(ctx, (srclen - 2) / 2 + 1, sizeof(short));
-		for (i = 2; i + 1 < srclen; i += 2)
-			*dstptr++ = srcptr[i] << 8 | srcptr[i+1];
-	}
-	else if (srclen >= 2 && srcptr[0] == 255 && srcptr[1] == 254)
-	{
-		dstptr = dst = fz_malloc_array(ctx, (srclen - 2) / 2 + 1, sizeof(short));
-		for (i = 2; i + 1 < srclen; i += 2)
-			*dstptr++ = srcptr[i] | srcptr[i+1] << 8;
-	}
-	else
-	{
-		dstptr = dst = fz_malloc_array(ctx, srclen + 1, sizeof(short));
-		for (i = 0; i < srclen; i++)
-			*dstptr++ = pdf_doc_encoding[srcptr[i]];
-	}
-
-	*dstptr = '\0';
-	return dst;
-}
-
-/* allow conversion to UCS-2 without the need for a fz_context */
-/* (buffer must be at least (fz_to_str_len(src) + 1) * 2 bytes in size) */
-void
-pdf_to_ucs2_buf(fz_context *ctx, unsigned short *buffer, pdf_obj *src)
-{
-	unsigned char *srcptr = (unsigned char *) pdf_to_str_buf(ctx, src);
-	unsigned short *dstptr = buffer;
-	int srclen = pdf_to_str_len(ctx, src);
-	int i;
-
-	if (srclen >= 2 && srcptr[0] == 254 && srcptr[1] == 255)
-	{
-		for (i = 2; i + 1 < srclen; i += 2)
-			*dstptr++ = srcptr[i] << 8 | srcptr[i+1];
-	}
-	else if (srclen >= 2 && srcptr[0] == 255 && srcptr[1] == 254)
-	{
-		for (i = 2; i + 1 < srclen; i += 2)
-			*dstptr++ = srcptr[i] | srcptr[i+1] << 8;
-	}
-	else
-	{
-		for (i = 0; i < srclen; i++)
-			*dstptr++ = pdf_doc_encoding[srcptr[i]];
-	}
-
-	*dstptr = '\0';
-}
-
-/* Convert UCS-2 string into PdfDocEncoding for authentication */
-char *
-pdf_from_ucs2(fz_context *ctx, unsigned short *src)
-{
-	int i, j, len;
-	char *docstr;
-
-	len = 0;
-	while (src[len])
-		len++;
-
-	docstr = fz_malloc(ctx, len + 1);
-
-	for (i = 0; i < len; i++)
-	{
-		/* shortcut: check if the character has the same code point in both encodings */
-		if (0 < src[i] && src[i] < 256 && pdf_doc_encoding[src[i]] == src[i]) {
-			docstr[i] = src[i];
-			continue;
-		}
-
-		/* search through pdf_docencoding for the character's code point */
-		for (j = 0; j < 256; j++)
-			if (pdf_doc_encoding[j] == src[i])
-				break;
-		docstr[i] = j;
-
-		/* fail, if a character can't be encoded */
-		if (!docstr[i])
-		{
-			fz_free(ctx, docstr);
-			return NULL;
-		}
-	}
-	docstr[len] = '\0';
-
-	return docstr;
-}
-
 pdf_obj *
 pdf_to_utf8_name(fz_context *ctx, pdf_obj *src)
 {