From f86e9738deb6c6887fb51f2d11e8294cfc1b51cb Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Mon, 29 Aug 2016 16:28:23 +0200
Subject: Simplify PDF resource caching table handling.

---
 include/mupdf/fitz/buffer.h  |  5 +++++
 include/mupdf/pdf/document.h |  6 ++++--
 include/mupdf/pdf/resource.h | 26 ++++----------------------
 3 files changed, 13 insertions(+), 24 deletions(-)

(limited to 'include')

diff --git a/include/mupdf/fitz/buffer.h b/include/mupdf/fitz/buffer.h
index a616fa86..40e46e73 100644
--- a/include/mupdf/fitz/buffer.h
+++ b/include/mupdf/fitz/buffer.h
@@ -138,4 +138,9 @@ size_t fz_buffer_printf(fz_context *ctx, fz_buffer *buffer, const char *fmt, ...
 size_t fz_buffer_vprintf(fz_context *ctx, fz_buffer *buffer, const char *fmt, va_list args);
 void fz_buffer_print_pdf_string(fz_context *ctx, fz_buffer *buffer, const char *text);
 
+/*
+	fz_md5_buffer: create MD5 digest of buffer contents.
+*/
+void fz_md5_buffer(fz_context *ctx, fz_buffer *buffer, unsigned char digest[16]);
+
 #endif
diff --git a/include/mupdf/pdf/document.h b/include/mupdf/pdf/document.h
index 8a8fdd40..aabf05f9 100644
--- a/include/mupdf/pdf/document.h
+++ b/include/mupdf/pdf/document.h
@@ -12,7 +12,6 @@ typedef struct pdf_annot_s pdf_annot;
 typedef struct pdf_widget_s pdf_widget;
 typedef struct pdf_hotspot_s pdf_hotspot;
 typedef struct pdf_js_s pdf_js;
-typedef struct pdf_resource_tables_s pdf_resource_tables;
 
 enum
 {
@@ -266,7 +265,10 @@ struct pdf_document_s
 	int max_type3_fonts;
 	fz_font **type3_fonts;
 
-	pdf_resource_tables *resources;
+	struct {
+		fz_hash_table *images;
+		fz_hash_table *fonts;
+	} resources;
 };
 
 /*
diff --git a/include/mupdf/pdf/resource.h b/include/mupdf/pdf/resource.h
index e0290247..f9f99da6 100644
--- a/include/mupdf/pdf/resource.h
+++ b/include/mupdf/pdf/resource.h
@@ -16,29 +16,11 @@ void pdf_remove_item(fz_context *ctx, fz_store_drop_fn *drop, pdf_obj *key);
  * the data, enabling rapid lookup.
  */
 
-typedef struct pdf_res_table_s pdf_res_table;
-typedef pdf_obj *(pdf_res_search_fn)(fz_context *ctx, pdf_document *doc, pdf_res_table *list,
-	void *item, unsigned char md5[16]);
-
-struct pdf_res_table_s
-{
-	fz_hash_table *hash;
-	pdf_res_search_fn *search;
-};
-
-struct pdf_resource_tables_s
-{
-	pdf_res_table *image;
-	pdf_res_table *font;
-	pdf_res_table *color;
-	pdf_res_table *pattern;
-	pdf_res_table *shading;
-};
-
-pdf_obj *pdf_find_resource(fz_context *ctx, pdf_document *doc, pdf_res_table *table, void *item, unsigned char md5[16]);
-void pdf_init_resource_tables(fz_context *ctx, pdf_document *doc);
+pdf_obj *pdf_find_font_resource(fz_context *ctx, pdf_document *doc, fz_buffer *item, unsigned char md5[16]);
+pdf_obj *pdf_insert_font_resource(fz_context *ctx, pdf_document *doc, unsigned char md5[16], pdf_obj *obj);
+pdf_obj *pdf_find_image_resource(fz_context *ctx, pdf_document *doc, fz_image *item, unsigned char md5[16]);
+pdf_obj *pdf_insert_image_resource(fz_context *ctx, pdf_document *doc, unsigned char md5[16], pdf_obj *obj);
 void pdf_drop_resource_tables(fz_context *ctx, pdf_document *doc);
-pdf_obj *pdf_insert_resource(fz_context *ctx, pdf_res_table *table, void *key, pdf_obj *obj);
 
 /*
  * Functions, Colorspaces, Shadings and Images
-- 
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