Add new fallback-resolution test for bug in cairo_pdf_surface_set_dpi

test/.gitignore

@@ -23,6 +23,8 @@ dash-scale
 dash-offset-negative
 dash-zero-length
 extend-reflect
+fallback-resolution
+fallback-resolution.pdf
 fill-and-stroke
 fill-and-stroke-alpha
 fill-and-stroke-alpha-add

test/Makefile.am

@@ -20,6 +20,7 @@ dash-scale			\
 dash-offset-negative		\
 dash-zero-length		\
 extend-reflect			\
+fallback-resolution		\
 fill-and-stroke			\
 fill-and-stroke-alpha		\
 fill-and-stroke-alpha-add	\

test/fallback-resolution.c

@@ -0,0 +1,84 @@
+/*
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Carl D. Worth <cworth@cworth.org>
+ */
+
+#include <stdio.h>
+#include <cairo.h>
+#include <cairo-pdf.h>
+#include <cairo-pdf-test.h>
+
+#include "cairo-test.h"
+
+/* This test exists to test cairo_surface_set_fallback_resolution
+ */
+
+#define INCHES_TO_POINTS(in) ((in) * 72.0)
+#define SIZE INCHES_TO_POINTS(1)
+
+int
+main (void)
+{
+    cairo_surface_t *surface;
+    cairo_t *cr;
+    cairo_status_t status;
+    char *filename;
+    double dpi[] = { 37.5, 75., 150., 300., 600. };
+    int i;
+
+    printf("\n");
+
+    filename = "fallback-resolution.pdf";
+
+    surface = cairo_pdf_surface_create (filename, SIZE, SIZE);
+
+    cr = cairo_create (surface);
+
+    /* Force image fallbacks before drawing anything. */
+    cairo_pdf_test_force_fallbacks ();
+
+    for (i = 0; i < sizeof(dpi) / sizeof (dpi[0]); i++) {
+	cairo_pdf_surface_set_dpi (surface, dpi[i], dpi[i]);
+	cairo_arc (cr, SIZE / 2.0, SIZE / 2.0,
+		   0.75 * SIZE / 2.0,
+		   0, 2.0 * M_PI);
+	cairo_fill (cr);
+
+	cairo_show_page (cr);
+    }
+
+    status = cairo_status (cr);
+
+    cairo_destroy (cr);
+    cairo_surface_destroy (surface);
+
+    if (status) {
+	cairo_test_log ("Failed to create pdf surface for file %s: %s\n",
+			filename, cairo_status_to_string (status));
+	return CAIRO_TEST_FAILURE;
+    }
+
+    printf ("fallback-resolution: Please check %s to ensure it looks correct.\n", filename);
+
+    return CAIRO_TEST_SUCCESS;
+}