--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/source/xps/xps-imp.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,236 @@
+// Copyright (C) 2004-2024 Artifex Software, Inc.
+//
+// This file is part of MuPDF.
+//
+// MuPDF is free software: you can redistribute it and/or modify it under the
+// terms of the GNU Affero General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option)
+// any later version.
+//
+// MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+// details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
+//
+// Alternative licensing terms are available from the licensor.
+// For commercial licensing, see <https://www.artifex.com/> or contact
+// Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
+// CA 94129, USA, for further information.
+
+#ifndef SOURCE_XPS_IMP_H
+#define SOURCE_XPS_IMP_H
+
+typedef struct xps_document_s xps_document;
+typedef struct xps_page_s xps_page;
+
+fz_document *xps_open_document(fz_context *ctx, const char *filename);
+fz_document *xps_open_document_with_stream(fz_context *ctx, fz_stream *file);
+fz_document *xps_open_document_with_directory(fz_context *ctx, fz_archive *dir);
+int xps_count_pages(fz_context *ctx, fz_document *doc, int chapter);
+fz_page *xps_load_page(fz_context *ctx, fz_document *doc, int chapter, int number);
+fz_outline *xps_load_outline(fz_context *ctx, fz_document *doc);
+void xps_run_page(fz_context *ctx, fz_page *page, fz_device *dev, fz_matrix ctm, fz_cookie *cookie);
+fz_link *xps_load_links(fz_context *ctx, fz_page *page);
+fz_link_dest xps_lookup_link_target(fz_context *ctx, fz_document *doc, const char *target_uri);
+
+int xps_strcasecmp(char *a, char *b);
+void xps_resolve_url(fz_context *ctx, xps_document *doc, char *output, char *base_uri, char *path, int output_size);
+char *xps_parse_point(fz_context *ctx, xps_document *doc, char *s_in, float *x, float *y);
+
+typedef struct xps_part_s xps_part;
+
+struct xps_part_s
+{
+	char *name;
+	fz_buffer *data;
+};
+
+int xps_has_part(fz_context *ctx, xps_document *doc, char *partname);
+
+/*
+	Read and interleave split parts from a ZIP file.
+*/
+xps_part *xps_read_part(fz_context *ctx, xps_document *doc, char *partname);
+void xps_drop_part(fz_context *ctx, xps_document *doc, xps_part *part);
+
+typedef struct xps_fixdoc_s xps_fixdoc;
+typedef struct xps_fixpage_s xps_fixpage;
+typedef struct xps_target_s xps_target;
+
+struct xps_fixdoc_s
+{
+	char *name;
+	char *outline;
+	xps_fixdoc *next;
+};
+
+struct xps_fixpage_s
+{
+	char *name;
+	int number;
+	int width;
+	int height;
+	xps_fixpage *next;
+};
+
+struct xps_page_s
+{
+	fz_page super;
+	xps_fixpage *fix;
+	fz_xml_doc *xml;
+};
+
+struct xps_target_s
+{
+	char *name;
+	int page;
+	xps_target *next;
+};
+
+void xps_read_page_list(fz_context *ctx, xps_document *doc);
+void xps_print_page_list(fz_context *ctx, xps_document *doc);
+void xps_drop_page_list(fz_context *ctx, xps_document *doc);
+
+typedef struct xps_font_cache_s xps_font_cache;
+
+struct xps_font_cache_s
+{
+	char *name;
+	fz_font *font;
+	xps_font_cache *next;
+};
+
+typedef struct xps_glyph_metrics_s xps_glyph_metrics;
+
+struct xps_glyph_metrics_s
+{
+	float hadv, vadv, vorg;
+};
+
+int xps_count_font_encodings(fz_context *ctx, fz_font *font);
+void xps_identify_font_encoding(fz_context *ctx, fz_font *font, int idx, int *pid, int *eid);
+void xps_select_font_encoding(fz_context *ctx, fz_font *font, int idx);
+int xps_encode_font_char(fz_context *ctx, fz_font *font, int key);
+
+void xps_measure_font_glyph(fz_context *ctx, xps_document *doc, fz_font *font, int gid, xps_glyph_metrics *mtx);
+
+void xps_print_path(fz_context *ctx, xps_document *doc);
+
+void xps_parse_color(fz_context *ctx, xps_document *doc, char *base_uri, char *hexstring, fz_colorspace **csp, float *samples);
+void xps_set_color(fz_context *ctx, xps_document *doc, fz_colorspace *colorspace, float *samples);
+
+typedef struct xps_resource_s xps_resource;
+
+struct xps_resource_s
+{
+	char *name;
+	char *base_uri; /* only used in the head nodes */
+	fz_xml_doc *base_xml; /* only used in the head nodes, to free the xml document */
+	fz_xml *data;
+	xps_resource *next;
+	xps_resource *parent; /* up to the previous dict in the stack */
+};
+
+xps_resource * xps_parse_resource_dictionary(fz_context *ctx, xps_document *doc, char *base_uri, fz_xml *root);
+void xps_drop_resource_dictionary(fz_context *ctx, xps_document *doc, xps_resource *dict);
+void xps_resolve_resource_reference(fz_context *ctx, xps_document *doc, xps_resource *dict, char **attp, fz_xml **tagp, char **urip);
+
+void xps_print_resource_dictionary(fz_context *ctx, xps_document *doc, xps_resource *dict);
+
+void xps_parse_fixed_page(fz_context *ctx, xps_document *doc, fz_matrix ctm, xps_page *page);
+void xps_parse_canvas(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *node);
+
+/*
+	Parse an XPS <Path> element, and call relevant
+	functions for drawing and/or clipping the child elements.
+*/
+void xps_parse_path(fz_context *ctx, xps_document *doc, fz_matrix ctm, char *base_uri, xps_resource *dict, fz_xml *node);
+void xps_parse_glyphs(fz_context *ctx, xps_document *doc, fz_matrix ctm, char *base_uri, xps_resource *dict, fz_xml *node);
+void xps_parse_solid_color_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, char *base_uri, xps_resource *dict, fz_xml *node);
+void xps_parse_image_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *node);
+void xps_parse_visual_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *node);
+void xps_parse_linear_gradient_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *node);
+void xps_parse_radial_gradient_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *node);
+
+void xps_parse_tiling_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *root, void(*func)(fz_context *ctx, xps_document*, fz_matrix, fz_rect, char*, xps_resource*, fz_xml*, void*), void *user);
+
+fz_font *xps_lookup_font(fz_context *ctx, xps_document *doc, char *base_uri, char *font_uri, char *style_att);
+
+/*
+	Parse an abbreviated geometry string, and call
+	moveto/lineto/curveto functions to build up a path.
+ */
+fz_path *xps_parse_abbreviated_geometry(fz_context *ctx, xps_document *doc, char *geom, int *fill_rule);
+fz_path *xps_parse_path_geometry(fz_context *ctx, xps_document *doc, xps_resource *dict, fz_xml *root, int stroking, int *fill_rule);
+fz_matrix xps_parse_transform(fz_context *ctx, xps_document *doc, char *att, fz_xml *tag, fz_matrix ctm);
+fz_rect xps_parse_rectangle(fz_context *ctx, xps_document *doc, char *text);
+
+void xps_begin_opacity(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, char *opacity_att, fz_xml *opacity_mask_tag);
+void xps_end_opacity(fz_context *ctx, xps_document *doc, char *base_uri, xps_resource *dict, char *opacity_att, fz_xml *opacity_mask_tag);
+
+void xps_parse_brush(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *node);
+void xps_parse_element(fz_context *ctx, xps_document *doc, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, fz_xml *node);
+
+void xps_clip(fz_context *ctx, xps_document *doc, fz_matrix ctm, xps_resource *dict, char *clip_att, fz_xml *clip_tag);
+
+fz_xml *xps_lookup_alternate_content(fz_context *ctx, xps_document *doc, fz_xml *node);
+
+typedef struct xps_entry_s xps_entry;
+
+/* Implementation details: Subject to change. */
+
+struct xps_entry_s
+{
+	char *name;
+	int64_t offset;
+	int csize;
+	int usize;
+};
+
+struct xps_document_s
+{
+	fz_document super;
+	fz_archive *zip;
+
+	char *start_part; /* fixed document sequence */
+	xps_fixdoc *first_fixdoc; /* first fixed document */
+	xps_fixdoc *last_fixdoc; /* last fixed document */
+	xps_fixpage *first_page; /* first page of document */
+	xps_fixpage *last_page; /* last page of document */
+	int page_count;
+
+	xps_target *target; /* link targets */
+
+	char *base_uri; /* base uri for parsing XML and resolving relative paths */
+	char *part_uri; /* part uri for parsing metadata relations */
+
+	/* We cache font resources */
+	xps_font_cache *font_table;
+
+	/* Opacity attribute stack */
+	float opacity[64];
+	int opacity_top;
+
+	/* Current color */
+	fz_colorspace *colorspace;
+	float color[8];
+	float alpha;
+
+	/* Current device */
+	fz_device *dev;
+	fz_cookie *cookie;
+};
+
+/*
+	Parse unicode and indices strings and encode glyphs.
+	Calculate metrics for positioning.
+*/
+fz_text *xps_parse_glyphs_imp(fz_context *ctx, xps_document *doc, fz_matrix ctm,
+	fz_font *font, float size, float originx, float originy,
+	int is_sideways, int bidi_level,
+	char *indices, char *unicode);
+
+#endif