Initialize variables to appease clang scan-build.

18 files changed, 48 insertions, 48 deletions

diff --git a/source/fitz/buffer.c b/source/fitz/buffer.c
index 49c35726..a43ff296 100644
--- a/source/fitz/buffer.c
+++ b/source/fitz/buffer.c
@@ -31,7 +31,7 @@ fz_new_buffer(fz_context *ctx, size_t size)
 fz_buffer *
 fz_new_buffer_from_data(fz_context *ctx, unsigned char *data, size_t size)
 {
-	fz_buffer *b;
+	fz_buffer *b = NULL;
 
 	fz_try(ctx)
 	{
diff --git a/source/fitz/colorspace.c b/source/fitz/colorspace.c
index 99aee398..29ad18d3 100644
--- a/source/fitz/colorspace.c
+++ b/source/fitz/colorspace.c
@@ -3151,7 +3151,7 @@ int fz_colorspace_is_indexed(fz_context *ctx, const fz_colorspace *cs)
 fz_colorspace *
 fz_new_indexed_colorspace(fz_context *ctx, fz_colorspace *base, int high, unsigned char *lookup)
 {
-	fz_colorspace *cs;
+	fz_colorspace *cs = NULL;
 	struct indexed *idx;
 
 	idx = fz_malloc_struct(ctx, struct indexed);
diff --git a/source/fitz/document.c b/source/fitz/document.c
index c03012f2..0e511c05 100644
--- a/source/fitz/document.c
+++ b/source/fitz/document.c
@@ -144,7 +144,7 @@ fz_open_document(fz_context *ctx, const char *filename)
 {
 	const fz_document_handler *handler;
 	fz_stream *file;
-	fz_document *doc;
+	fz_document *doc = NULL;
 
 	if (filename == NULL)
 		fz_throw(ctx, FZ_ERROR_GENERIC, "no document to open");
diff --git a/source/fitz/draw-device.c b/source/fitz/draw-device.c
index ce825eca..3a5ae1db 100644
--- a/source/fitz/draw-device.c
+++ b/source/fitz/draw-device.c
@@ -2600,7 +2600,7 @@ fz_new_draw_device_with_options(fz_context *ctx, const fz_draw_options *opts, co
 	fz_rect bounds;
 	fz_irect ibounds;
 	fz_matrix transform;
-	fz_device *dev;
+	fz_device *dev = NULL;
 	fz_aa_context aa = *ctx->aa;
 
 	fz_set_rasterizer_graphics_aa_level(ctx, &aa, opts->graphics);
diff --git a/source/fitz/draw-glyph.c b/source/fitz/draw-glyph.c
index 49ca6661..dacee540 100644
--- a/source/fitz/draw-glyph.c
+++ b/source/fitz/draw-glyph.c
@@ -413,7 +413,7 @@ unlock_and_return_val:
 fz_pixmap *
 fz_render_glyph_pixmap(fz_context *ctx, fz_font *font, int gid, fz_matrix *ctm, const fz_irect *scissor, int aa)
 {
-	fz_pixmap *val;
+	fz_pixmap *val = NULL;
 	unsigned char qe, qf;
 	fz_matrix subpix_ctm;
 	float size = fz_subpixel_adjust(ctx, ctm, &subpix_ctm, &qe, &qf);
diff --git a/source/fitz/filter-basic.c b/source/fitz/filter-basic.c
index 8f3b18ac..5630c37b 100644
--- a/source/fitz/filter-basic.c
+++ b/source/fitz/filter-basic.c
@@ -58,7 +58,7 @@ close_null(fz_context *ctx, void *state_)
 fz_stream *
 fz_open_null(fz_context *ctx, fz_stream *chain, int len, fz_off_t offset)
 {
-	struct null_filter *state;
+	struct null_filter *state = NULL;
 
 	if (len < 0)
 		len = 0;
@@ -278,7 +278,7 @@ close_ahxd(fz_context *ctx, void *state_)
 fz_stream *
 fz_open_ahxd(fz_context *ctx, fz_stream *chain)
 {
-	fz_ahxd *state;
+	fz_ahxd *state = NULL;
 
 	fz_try(ctx)
 	{
@@ -422,7 +422,7 @@ close_a85d(fz_context *ctx, void *state_)
 fz_stream *
 fz_open_a85d(fz_context *ctx, fz_stream *chain)
 {
-	fz_a85d *state;
+	fz_a85d *state = NULL;
 
 	fz_try(ctx)
 	{
@@ -533,7 +533,7 @@ close_rld(fz_context *ctx, void *state_)
 fz_stream *
 fz_open_rld(fz_context *ctx, fz_stream *chain)
 {
-	fz_rld *state;
+	fz_rld *state = NULL;
 
 	fz_try(ctx)
 	{
@@ -596,7 +596,7 @@ close_arc4(fz_context *ctx, void *state_)
 fz_stream *
 fz_open_arc4(fz_context *ctx, fz_stream *chain, unsigned char *key, unsigned keylen)
 {
-	fz_arc4c *state;
+	fz_arc4c *state = NULL;
 
 	fz_try(ctx)
 	{
diff --git a/source/fitz/font.c b/source/fitz/font.c
index 38c9abab..9a113460 100644
--- a/source/fitz/font.c
+++ b/source/fitz/font.c
@@ -590,7 +590,7 @@ fz_font *
 fz_new_font_from_memory(fz_context *ctx, const char *name, const unsigned char *data, int len, int index, int use_glyph_bbox)
 {
 	fz_buffer *buffer = fz_new_buffer_from_shared_data(ctx, data, len);
-	fz_font *font;
+	fz_font *font = NULL;
 	fz_try(ctx)
 		font = fz_new_font_from_buffer(ctx, name, buffer, index, use_glyph_bbox);
 	fz_always(ctx)
@@ -604,7 +604,7 @@ fz_font *
 fz_new_font_from_file(fz_context *ctx, const char *name, const char *path, int index, int use_glyph_bbox)
 {
 	fz_buffer *buffer = fz_read_file(ctx, path);
-	fz_font *font;
+	fz_font *font = NULL;
 	fz_try(ctx)
 		font = fz_new_font_from_buffer(ctx, name, buffer, index, use_glyph_bbox);
 	fz_always(ctx)
@@ -764,7 +764,7 @@ fz_pixmap *
 fz_render_ft_glyph_pixmap(fz_context *ctx, fz_font *font, int gid, const fz_matrix *trm, int aa)
 {
 	FT_GlyphSlot slot = do_ft_render_glyph(ctx, font, gid, trm, aa);
-	fz_pixmap *pixmap;
+	fz_pixmap *pixmap = NULL;
 
 	if (slot == NULL)
 	{
@@ -793,7 +793,7 @@ fz_glyph *
 fz_render_ft_glyph(fz_context *ctx, fz_font *font, int gid, const fz_matrix *trm, int aa)
 {
 	FT_GlyphSlot slot = do_ft_render_glyph(ctx, font, gid, trm, aa);
-	fz_glyph *glyph;
+	fz_glyph *glyph = NULL;
 
 	if (slot == NULL)
 	{
@@ -917,7 +917,7 @@ fz_render_ft_stroked_glyph_pixmap(fz_context *ctx, fz_font *font, int gid, const
 {
 	FT_Glyph glyph = do_render_ft_stroked_glyph(ctx, font, gid, trm, ctm, state, aa);
 	FT_BitmapGlyph bitmap = (FT_BitmapGlyph)glyph;
-	fz_pixmap *pixmap;
+	fz_pixmap *pixmap = NULL;
 
 	if (bitmap == NULL)
 	{
@@ -947,7 +947,7 @@ fz_render_ft_stroked_glyph(fz_context *ctx, fz_font *font, int gid, const fz_mat
 {
 	FT_Glyph glyph = do_render_ft_stroked_glyph(ctx, font, gid, trm, ctm, state, aa);
 	FT_BitmapGlyph bitmap = (FT_BitmapGlyph)glyph;
-	fz_glyph *result;
+	fz_glyph *result = NULL;
 
 	if (bitmap == NULL)
 	{
@@ -1333,7 +1333,7 @@ fz_render_t3_glyph_pixmap(fz_context *ctx, fz_font *font, int gid, const fz_matr
 	fz_irect bbox;
 	fz_device *dev = NULL;
 	fz_pixmap *glyph;
-	fz_pixmap *result;
+	fz_pixmap *result = NULL;
 
 	if (gid < 0 || gid > 255)
 		return NULL;
diff --git a/source/fitz/image.c b/source/fitz/image.c
index 89798bf2..2716cf56 100644
--- a/source/fitz/image.c
+++ b/source/fitz/image.c
@@ -901,7 +901,7 @@ fz_new_image_from_buffer(fz_context *ctx, fz_buffer *buffer)
 	fz_colorspace *cspace;
 	size_t len = buffer->len;
 	unsigned char *buf = buffer->data;
-	fz_image *image;
+	fz_image *image = NULL;
 	int type;
 
 	if (len < 8)
@@ -981,7 +981,7 @@ fz_image *
 fz_new_image_from_file(fz_context *ctx, const char *path)
 {
 	fz_buffer *buffer;
-	fz_image *image;
+	fz_image *image = NULL;
 
 	buffer = fz_read_file(ctx, path);
 	fz_try(ctx)
diff --git a/source/fitz/load-jpx.c b/source/fitz/load-jpx.c
index dfe176cf..fb88498c 100644
--- a/source/fitz/load-jpx.c
+++ b/source/fitz/load-jpx.c
@@ -892,7 +892,7 @@ fz_pixmap *
 fz_load_jpx(fz_context *ctx, unsigned char *data, size_t size, fz_colorspace *defcs)
 {
 	fz_jpxd state = { 0 };
-	fz_pixmap *pix;
+	fz_pixmap *pix = NULL;
 
 	fz_try(ctx)
 	{
diff --git a/source/fitz/load-png.c b/source/fitz/load-png.c
index eabcf2d6..8f204015 100644
--- a/source/fitz/load-png.c
+++ b/source/fitz/load-png.c
@@ -559,7 +559,7 @@ png_mask_transparency(struct info *info, fz_pixmap *dst)
 fz_pixmap *
 fz_load_png(fz_context *ctx, unsigned char *p, size_t total)
 {
-	fz_pixmap *image;
+	fz_pixmap *image = NULL;
 	fz_colorspace *colorspace;
 	struct info png;
 	int stride;
diff --git a/source/fitz/load-pnm.c b/source/fitz/load-pnm.c
index 9e38dcbd..36493823 100644
--- a/source/fitz/load-pnm.c
+++ b/source/fitz/load-pnm.c
@@ -628,7 +628,7 @@ pnm_read_image(fz_context *ctx, struct info *pnm, unsigned char *p, size_t total
 fz_pixmap *
 fz_load_pnm(fz_context *ctx, unsigned char *p, size_t total)
 {
-	fz_pixmap *img;
+	fz_pixmap *img = NULL;
 	struct info pnm = { 0 };
 
 	fz_try(ctx)
diff --git a/source/fitz/load-tiff.c b/source/fitz/load-tiff.c
index 77539876..76df053a 100644
--- a/source/fitz/load-tiff.c
+++ b/source/fitz/load-tiff.c
@@ -292,7 +292,7 @@ tiff_decode_data(fz_context *ctx, struct tiff *tiff, unsigned char *rp, unsigned
 {
 	fz_stream *encstm = NULL;
 	fz_stream *stm = NULL;
-	unsigned i, size;
+	unsigned i, size = 0;
 	unsigned char *reversed = NULL;
 	fz_stream *jpegtables = NULL;
 	int old_tiff;
diff --git a/source/fitz/output-png.c b/source/fitz/output-png.c
index b86ea648..afda42f3 100644
--- a/source/fitz/output-png.c
+++ b/source/fitz/output-png.c
@@ -89,7 +89,7 @@ png_write_icc(fz_context *ctx, png_band_writer *writer, const fz_colorspace *cs)
 	int size;
 	fz_buffer *buffer = fz_icc_data_from_icc_colorspace(ctx, cs);
 	unsigned char *data;
-	unsigned char *chunk, *pos, *cdata;
+	unsigned char *pos, *cdata, *chunk = NULL;
 	uLong bound;
 	uLongf csize;
 	uLong long_size;
@@ -356,7 +356,7 @@ fz_buffer *
 fz_new_buffer_from_image_as_png(fz_context *ctx, fz_image *image, const fz_color_params *color_params)
 {
 	fz_pixmap *pix = fz_get_pixmap_from_image(ctx, image, NULL, NULL, NULL, NULL);
-	fz_buffer *buf;
+	fz_buffer *buf = NULL;
 
 	fz_try(ctx)
 		buf = png_from_pixmap(ctx, pix, color_params, 1);
diff --git a/source/fitz/output.c b/source/fitz/output.c
index 75872ab2..a0f7fdee 100644
--- a/source/fitz/output.c
+++ b/source/fitz/output.c
@@ -148,7 +148,7 @@ file_close(fz_context *ctx, void *opaque)
 fz_output *
 fz_new_output(fz_context *ctx, void *state, fz_output_write_fn *write, fz_output_close_fn *close)
 {
-	fz_output *out;
+	fz_output *out = NULL;
 
 	fz_try(ctx)
 	{
diff --git a/source/fitz/stext-device.c b/source/fitz/stext-device.c
index ba609228..6d7df972 100644
--- a/source/fitz/stext-device.c
+++ b/source/fitz/stext-device.c
@@ -38,7 +38,7 @@ fz_stext_page *
 fz_new_stext_page(fz_context *ctx, const fz_rect *mediabox)
 {
 	fz_pool *pool = fz_new_pool(ctx);
-	fz_stext_page *page;
+	fz_stext_page *page = NULL;
 	fz_try(ctx)
 	{
 		page = fz_pool_alloc(ctx, pool, sizeof(*page));
@@ -588,7 +588,7 @@ fz_new_image_from_shade(fz_context *ctx, fz_shade *shade, fz_matrix *in_out_ctm,
 {
 	fz_matrix ctm = *in_out_ctm;
 	fz_pixmap *pix;
-	fz_image *img;
+	fz_image *img = NULL;
 	fz_rect bounds;
 	fz_irect bbox;
 
diff --git a/source/fitz/store.c b/source/fitz/store.c
index bf98c1aa..bb9426ba 100644
--- a/source/fitz/store.c
+++ b/source/fitz/store.c
@@ -447,7 +447,7 @@ fz_store_item(fz_context *ctx, void *key, void *val_, size_t itemsize, const fz_
 	 * to check whether we have one there already. */
 	if (use_hash)
 	{
-		fz_item *existing;
+		fz_item *existing = NULL;
 
 		fz_try(ctx)
 		{
diff --git a/source/fitz/stream-open.c b/source/fitz/stream-open.c
index 3fe58712..83990d52 100644
--- a/source/fitz/stream-open.c
+++ b/source/fitz/stream-open.c
@@ -16,7 +16,7 @@ fz_file_exists(fz_context *ctx, const char *path)
 fz_stream *
 fz_new_stream(fz_context *ctx, void *state, fz_stream_next_fn *next, fz_stream_close_fn *close)
 {
-	fz_stream *stm;
+	fz_stream *stm = NULL;
 
 	fz_try(ctx)
 	{
diff --git a/source/fitz/util.c b/source/fitz/util.c
index 5d75aaad..f7567edc 100644
--- a/source/fitz/util.c
+++ b/source/fitz/util.c
@@ -7,7 +7,7 @@ fz_new_display_list_from_page(fz_context *ctx, fz_page *page)
 {
 	fz_display_list *list;
 	fz_rect bounds;
-	fz_device *dev;
+	fz_device *dev = NULL;
 
 	list = fz_new_display_list(ctx, fz_bound_page(ctx, page, &bounds));
 
@@ -34,7 +34,7 @@ fz_display_list *
 fz_new_display_list_from_page_number(fz_context *ctx, fz_document *doc, int number)
 {
 	fz_page *page;
-	fz_display_list *list;
+	fz_display_list *list = NULL;
 
 	page = fz_load_page(ctx, doc, number);
 	fz_try(ctx)
@@ -51,7 +51,7 @@ fz_new_display_list_from_page_contents(fz_context *ctx, fz_page *page)
 {
 	fz_display_list *list;
 	fz_rect bounds;
-	fz_device *dev;
+	fz_device *dev = NULL;
 
 	list = fz_new_display_list(ctx, fz_bound_page(ctx, page, &bounds));
 
@@ -79,7 +79,7 @@ fz_new_display_list_from_annot(fz_context *ctx, fz_annot *annot)
 {
 	fz_display_list *list;
 	fz_rect bounds;
-	fz_device *dev;
+	fz_device *dev = NULL;
 
 	list = fz_new_display_list(ctx, fz_bound_annot(ctx, annot, &bounds));
 
@@ -108,7 +108,7 @@ fz_new_pixmap_from_display_list(fz_context *ctx, fz_display_list *list, const fz
 	fz_rect rect;
 	fz_irect irect;
 	fz_pixmap *pix;
-	fz_device *dev;
+	fz_device *dev = NULL;
 
 	fz_bound_display_list(ctx, list, &rect);
 	fz_transform_rect(&rect, ctm);
@@ -145,7 +145,7 @@ fz_new_pixmap_from_page_contents(fz_context *ctx, fz_page *page, const fz_matrix
 	fz_rect rect;
 	fz_irect irect;
 	fz_pixmap *pix;
-	fz_device *dev;
+	fz_device *dev = NULL;
 
 	fz_bound_page(ctx, page, &rect);
 	fz_transform_rect(&rect, ctm);
@@ -182,7 +182,7 @@ fz_new_pixmap_from_annot(fz_context *ctx, fz_annot *annot, const fz_matrix *ctm,
 	fz_rect rect;
 	fz_irect irect;
 	fz_pixmap *pix;
-	fz_device *dev;
+	fz_device *dev = NULL;
 
 	fz_bound_annot(ctx, annot, &rect);
 	fz_transform_rect(&rect, ctm);
@@ -219,7 +219,7 @@ fz_new_pixmap_from_page(fz_context *ctx, fz_page *page, const fz_matrix *ctm, fz
 	fz_rect rect;
 	fz_irect irect;
 	fz_pixmap *pix;
-	fz_device *dev;
+	fz_device *dev = NULL;
 
 	fz_bound_page(ctx, page, &rect);
 	fz_transform_rect(&rect, ctm);
@@ -254,7 +254,7 @@ fz_pixmap *
 fz_new_pixmap_from_page_number(fz_context *ctx, fz_document *doc, int number, const fz_matrix *ctm, fz_colorspace *cs, int alpha)
 {
 	fz_page *page;
-	fz_pixmap *pix;
+	fz_pixmap *pix = NULL;
 
 	page = fz_load_page(ctx, doc, number);
 	fz_try(ctx)
@@ -270,7 +270,7 @@ fz_stext_page *
 fz_new_stext_page_from_display_list(fz_context *ctx, fz_display_list *list, const fz_stext_options *options)
 {
 	fz_stext_page *text;
-	fz_device *dev;
+	fz_device *dev = NULL;
 	fz_rect mediabox;
 
 	if (list == NULL)
@@ -300,7 +300,7 @@ fz_stext_page *
 fz_new_stext_page_from_page(fz_context *ctx, fz_page *page, const fz_stext_options *options)
 {
 	fz_stext_page *text;
-	fz_device *dev;
+	fz_device *dev = NULL;
 	fz_rect mediabox;
 
 	if (page == NULL)
@@ -330,7 +330,7 @@ fz_stext_page *
 fz_new_stext_page_from_page_number(fz_context *ctx, fz_document *doc, int number, const fz_stext_options *options)
 {
 	fz_page *page;
-	fz_stext_page *text;
+	fz_stext_page *text = NULL;
 
 	page = fz_load_page(ctx, doc, number);
 	fz_try(ctx)
@@ -346,7 +346,7 @@ int
 fz_search_display_list(fz_context *ctx, fz_display_list *list, const char *needle, fz_rect *hit_bbox, int hit_max)
 {
 	fz_stext_page *text;
-	int count;
+	int count = 0;
 
 	text = fz_new_stext_page_from_display_list(ctx, list, NULL);
 	fz_try(ctx)
@@ -362,7 +362,7 @@ int
 fz_search_page(fz_context *ctx, fz_page *page, const char *needle, fz_rect *hit_bbox, int hit_max)
 {
 	fz_stext_page *text;
-	int count;
+	int count = 0;
 
 	text = fz_new_stext_page_from_page(ctx, page, NULL);
 	fz_try(ctx)
@@ -378,7 +378,7 @@ int
 fz_search_page_number(fz_context *ctx, fz_document *doc, int number, const char *needle, fz_rect *hit_bbox, int hit_max)
 {
 	fz_page *page;
-	int count;
+	int count = 0;
 
 	page = fz_load_page(ctx, doc, number);
 	fz_try(ctx)
@@ -462,7 +462,7 @@ fz_buffer *
 fz_new_buffer_from_display_list(fz_context *ctx, fz_display_list *list, const fz_rect *sel, int crlf, const fz_stext_options *options)
 {
 	fz_stext_page *text;
-	fz_buffer *buf;
+	fz_buffer *buf = NULL;
 
 	text = fz_new_stext_page_from_display_list(ctx, list, options);
 	fz_try(ctx)
@@ -478,7 +478,7 @@ fz_buffer *
 fz_new_buffer_from_page(fz_context *ctx, fz_page *page, const fz_rect *sel, int crlf, const fz_stext_options *options)
 {
 	fz_stext_page *text;
-	fz_buffer *buf;
+	fz_buffer *buf = NULL;
 
 	text = fz_new_stext_page_from_page(ctx, page, options);
 	fz_try(ctx)
@@ -494,7 +494,7 @@ fz_buffer *
 fz_new_buffer_from_page_number(fz_context *ctx, fz_document *doc, int number, const fz_rect *sel, int crlf, const fz_stext_options *options)
 {
 	fz_page *page;
-	fz_buffer *buf;
+	fz_buffer *buf = NULL;
 
 	page = fz_load_page(ctx, doc, number);
 	fz_try(ctx)