PDF: Add new, private test function: cairo_pdf_test_force_fallbacks

doc/public/Makefile.am

@@ -28,6 +28,7 @@ IGNORE_HFILES= 				\
 	cairo-hash-private.h		\
 	cairo-meta-surface-private.h	\
 	cairo-path-fixed-private.h 	\
+	cairo-pdf-test.h		\
 	cairo-private.h			\
 	cairo-win32-private.h		\
 	cairo-xlib-private.h		\

src/Makefile.am

@@ -7,7 +7,7 @@ endif
 
 if CAIRO_HAS_PDF_SURFACE
 libcairo_pdf_headers = cairo-pdf.h
-libcairo_pdf_sources = cairo-pdf-surface.c
+libcairo_pdf_sources = cairo-pdf-surface.c cairo-pdf-test.h
 libcairo_font_subset_sources = cairo-font-subset.c cairo-font-subset-private.h
 endif
 

src/cairo-pdf-surface.c

@@ -38,6 +38,7 @@
 
 #include "cairoint.h"
 #include "cairo-pdf.h"
+#include "cairo-pdf-test.h"
 #include "cairo-scaled-font-subsets-private.h"
 #include "cairo-ft-private.h"
 #include "cairo-paginated-surface-private.h"
@@ -760,7 +761,7 @@ emit_image (cairo_pdf_surface_t		*surface,
      * future). */
 
     /* These are the only image formats we currently support, (which
-     * makes things a lot simpler here). This is enforeced through
+     * makes things a lot simpler here). This is enforced through
      * _analyze_operation which only accept source surfaces of
      * CONTENT_COLOR or CONTENT_COLOR_ALPHA.
      */
@@ -2022,11 +2023,34 @@ _pattern_supported (cairo_pattern_t *pattern)
     return FALSE;
 }
 
+static cairo_bool_t cairo_pdf_force_fallbacks = FALSE;
+
+/**
+ * cairo_pdf_test_force_fallbacks
+ *
+ * Force the PDF surface backend to use image fallbacks for every
+ * operation.
+ * 
+ * <note>
+ * This function is <emphasis>only</emphasis> intended for internal
+ * testing use within the cairo distribution. It is not installed in
+ * any public header file.
+ * </note>
+ **/
+void
+cairo_pdf_test_force_fallbacks (void)
+{
+    cairo_pdf_force_fallbacks = TRUE;
+}
+
 static cairo_int_status_t
 _operation_supported (cairo_pdf_surface_t *surface,
 		      cairo_operator_t op,
 		      cairo_pattern_t *pattern)
 {
+    if (cairo_pdf_force_fallbacks)
+	return FALSE;
+
     if (! _pattern_supported (pattern))
 	return FALSE;
 

src/cairo-pdf-test.h

@@ -0,0 +1,55 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_PDF_TEST_H
+#define CAIRO_PDF_TEST_H
+
+#include <cairo.h>
+
+#if CAIRO_HAS_PDF_SURFACE
+
+#include <cairo-pdf.h>
+
+CAIRO_BEGIN_DECLS
+
+void
+cairo_pdf_test_force_fallbacks (void);
+
+CAIRO_END_DECLS
+
+#endif /* CAIRO_HAS_PDF_SURFACE */
+#endif /* CAIRO_PDF_TEST_H */
+