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-rw-r--r--test/fallback-resolution.c517
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diff --git a/test/fallback-resolution.c b/test/fallback-resolution.c
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--- a/test/fallback-resolution.c
+++ /dev/null
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-/*
- * Copyright © 2006 Red Hat, Inc.
- * Copyright © 2008 Chris Wilson
- *
- * 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>
- * Chris Wilson <chris@chris-wilson.co.uk>
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <cairo.h>
-
-#if CAIRO_HAS_PDF_SURFACE
-#include <cairo-pdf.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#include <errno.h>
-#endif
-#if HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-
-#include "cairo-test.h"
-#include "buffer-diff.h"
-
-/* This test exists to test cairo_surface_set_fallback_resolution
- *
- * <behdad> one more thing.
- * if you can somehow incorporate cairo_show_page stuff in the
- * test suite. such that fallback-resolution can actually be
- * automated..
- * if we could get a callback on surface when that function is
- * called, we could do cool stuff like making other backends
- * draw a long strip of images, one for each page...
- */
-
-#define INCHES_TO_POINTS(in) ((in) * 72.0)
-#define SIZE INCHES_TO_POINTS(2)
-
-/* cairo_set_tolerance() is not respected by the PS/PDF backends currently */
-#define SET_TOLERANCE 0
-
-#define GENERATE_REFERENCE 0
-
-static void
-draw (cairo_t *cr, double width, double height)
-{
- const char *text = "cairo";
- cairo_text_extents_t extents;
- const double dash[2] = { 8, 16 };
- cairo_pattern_t *pattern;
-
- cairo_save (cr);
-
- cairo_new_path (cr);
-
- cairo_set_line_width (cr, .05 * SIZE / 2.0);
-
- cairo_arc (cr, SIZE / 2.0, SIZE / 2.0,
- 0.875 * SIZE / 2.0,
- 0, 2.0 * M_PI);
- cairo_stroke (cr);
-
- /* use dashes to demonstrate bugs:
- * https://bugs.freedesktop.org/show_bug.cgi?id=9189
- * https://bugs.freedesktop.org/show_bug.cgi?id=17223
- */
- cairo_save (cr);
- cairo_set_dash (cr, dash, 2, 0);
- cairo_arc (cr, SIZE / 2.0, SIZE / 2.0,
- 0.75 * SIZE / 2.0,
- 0, 2.0 * M_PI);
- cairo_stroke (cr);
- cairo_restore (cr);
-
- cairo_save (cr);
- cairo_rectangle (cr, 0, 0, SIZE/2, SIZE);
- cairo_clip (cr);
- cairo_arc (cr, SIZE / 2.0, SIZE / 2.0,
- 0.6 * SIZE / 2.0,
- 0, 2.0 * M_PI);
- cairo_fill (cr);
- cairo_restore (cr);
-
- /* use a pattern to exercise bug:
- * https://bugs.launchpad.net/inkscape/+bug/234546
- */
- cairo_save (cr);
- cairo_rectangle (cr, SIZE/2, 0, SIZE/2, SIZE);
- cairo_clip (cr);
- pattern = cairo_pattern_create_linear (SIZE/2, 0, SIZE, 0);
- cairo_pattern_add_color_stop_rgba (pattern, 0, 0, 0, 0, 1.);
- cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 0, 0.);
- cairo_set_source (cr, pattern);
- cairo_pattern_destroy (pattern);
- cairo_arc (cr, SIZE / 2.0, SIZE / 2.0,
- 0.6 * SIZE / 2.0,
- 0, 2.0 * M_PI);
- cairo_fill (cr);
- cairo_restore (cr);
-
- cairo_set_source_rgb (cr, 1, 1, 1); /* white */
- cairo_set_font_size (cr, .25 * SIZE / 2.0);
- cairo_text_extents (cr, text, &extents);
- cairo_move_to (cr, (SIZE-extents.width)/2.0-extents.x_bearing,
- (SIZE-extents.height)/2.0-extents.y_bearing);
- cairo_show_text (cr, text);
-
- cairo_restore (cr);
-}
-
-static void
-_xunlink (const cairo_test_context_t *ctx, const char *pathname)
-{
- if (unlink (pathname) < 0 && errno != ENOENT) {
- cairo_test_log (ctx, "Error: Cannot remove %s: %s\n",
- pathname, strerror (errno));
- exit (1);
- }
-}
-
-static cairo_bool_t
-check_result (cairo_test_context_t *ctx,
- const cairo_boilerplate_target_t *target,
- const char *test_name,
- const char *base_name,
- cairo_surface_t *surface)
-{
- const char *format;
- char *ref_name;
- char *png_name;
- char *diff_name;
- cairo_surface_t *test_image, *ref_image, *diff_image;
- buffer_diff_result_t result;
- cairo_status_t status;
- cairo_bool_t ret;
-
- /* XXX log target, OUTPUT, REFERENCE, DIFFERENCE for index.html */
-
- if (target->finish_surface != NULL) {
- status = target->finish_surface (surface);
- if (status) {
- cairo_test_log (ctx, "Error: Failed to finish surface: %s\n",
- cairo_status_to_string (status));
- cairo_surface_destroy (surface);
- return FALSE;
- }
- }
-
- xasprintf (&png_name, "%s.out.png", base_name);
- xasprintf (&diff_name, "%s.diff.png", base_name);
-
- test_image = target->get_image_surface (surface, 0, SIZE, SIZE);
- if (cairo_surface_status (test_image)) {
- cairo_test_log (ctx, "Error: Failed to extract page: %s\n",
- cairo_status_to_string (cairo_surface_status (test_image)));
- cairo_surface_destroy (test_image);
- free (png_name);
- free (diff_name);
- return FALSE;
- }
-
- _xunlink (ctx, png_name);
- status = cairo_surface_write_to_png (test_image, png_name);
- if (status) {
- cairo_test_log (ctx, "Error: Failed to write output image: %s\n",
- cairo_status_to_string (status));
- cairo_surface_destroy (test_image);
- free (png_name);
- free (diff_name);
- return FALSE;
- }
-
- format = cairo_boilerplate_content_name (target->content);
- ref_name = cairo_test_reference_filename (ctx,
- base_name,
- test_name,
- target->name,
- target->basename,
- format,
- CAIRO_TEST_REF_SUFFIX,
- CAIRO_TEST_PNG_EXTENSION);
- if (ref_name == NULL) {
- cairo_test_log (ctx, "Error: Cannot find reference image for %s\n",
- base_name);
- cairo_surface_destroy (test_image);
- free (png_name);
- free (diff_name);
- return FALSE;
- }
-
-
- ref_image = cairo_test_get_reference_image (ctx, ref_name,
- target->content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED);
- if (cairo_surface_status (ref_image)) {
- cairo_test_log (ctx, "Error: Cannot open reference image for %s: %s\n",
- ref_name,
- cairo_status_to_string (cairo_surface_status (ref_image)));
- cairo_surface_destroy (ref_image);
- cairo_surface_destroy (test_image);
- free (png_name);
- free (diff_name);
- free (ref_name);
- return FALSE;
- }
-
- diff_image = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
- SIZE, SIZE);
-
- ret = TRUE;
- status = image_diff (ctx,
- test_image, ref_image, diff_image,
- &result);
- _xunlink (ctx, diff_name);
- if (status) {
- cairo_test_log (ctx, "Error: Failed to compare images: %s\n",
- cairo_status_to_string (status));
- ret = FALSE;
- } else if (image_diff_is_failure (&result, target->error_tolerance))
- {
- ret = FALSE;
-
- status = cairo_surface_write_to_png (diff_image, diff_name);
- if (status) {
- cairo_test_log (ctx, "Error: Failed to write differences image: %s\n",
- cairo_status_to_string (status));
- }
- }
-
- cairo_surface_destroy (test_image);
- cairo_surface_destroy (diff_image);
- free (png_name);
- free (diff_name);
- free (ref_name);
-
- return ret;
-}
-
-#if GENERATE_REFERENCE
-static void
-generate_reference (double ppi_x, double ppi_y, const char *filename)
-{
- cairo_surface_t *surface, *target;
- cairo_t *cr;
- cairo_status_t status;
-
- surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24,
- SIZE*ppi_x/72, SIZE*ppi_y/72);
- cr = cairo_create (surface);
- cairo_surface_destroy (surface);
-
- /* As we wish to mimic a PDF surface, copy across the default font options
- * from the PDF backend.
- */
- {
- cairo_surface_t *pdf;
- cairo_font_options_t *options;
-
- options = cairo_font_options_create ();
-
-#if CAIRO_HAS_PDF_SURFACE
- pdf = cairo_pdf_surface_create ("tmp.pdf", 1, 1);
- cairo_surface_get_font_options (pdf, options);
- cairo_surface_destroy (pdf);
-#endif
-
- cairo_set_font_options (cr, options);
- cairo_font_options_destroy (options);
- }
-
-#if SET_TOLERANCE
- cairo_set_tolerance (cr, 3.0);
-#endif
-
- cairo_save (cr); {
- cairo_set_source_rgb (cr, 1, 1, 1);
- cairo_paint (cr);
- } cairo_restore (cr);
-
- cairo_scale (cr, ppi_x/72., ppi_y/72.);
- draw (cr, SIZE, SIZE);
-
- surface = cairo_surface_reference (cairo_get_target (cr));
- cairo_destroy (cr);
-
- target = cairo_image_surface_create (CAIRO_FORMAT_RGB24, SIZE, SIZE);
- cr = cairo_create (target);
- cairo_scale (cr, 72./ppi_x, 72./ppi_y);
- cairo_set_source_surface (cr, surface, 0, 0);
- cairo_paint (cr);
-
- status = cairo_surface_write_to_png (cairo_get_target (cr), filename);
- cairo_destroy (cr);
-
- if (status) {
- fprintf (stderr, "Failed to generate reference image '%s': %s\n",
- filename, cairo_status_to_string (status));
- exit (1);
- }
-}
-#endif
-
-/* TODO: Split each ppi case out to its own CAIRO_TEST() test case */
-static cairo_test_status_t
-preamble (cairo_test_context_t *ctx)
-{
- cairo_t *cr;
- cairo_test_status_t ret = CAIRO_TEST_UNTESTED;
- struct {
- double x, y;
- } ppi[] = {
- { 576, 576 },
- { 576, 72 },
-
- { 288, 288 },
- { 288, 72 },
-
- { 144, 144 },
- { 144, 72 },
-
- { 72, 576 },
- { 72, 288 },
- { 72, 144 },
- { 72, 72 },
- };
- unsigned int i;
- int n, num_ppi;
- const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : ".";
-
- num_ppi = ARRAY_LENGTH (ppi);
-
-#if GENERATE_REFERENCE
- for (n = 0; n < num_ppi; n++) {
- char *ref_name;
- xasprintf (&ref_name, "reference/fallback-resolution.ppi%gx%g.ref.png",
- ppi[n].x, ppi[n].y);
- generate_reference (ppi[n].x, ppi[n].y, ref_name);
- free (ref_name);
- }
-#endif
-
- for (i = 0; i < ctx->num_targets; i++) {
- const cairo_boilerplate_target_t *target = ctx->targets_to_test[i];
- cairo_surface_t *surface = NULL;
- char *base_name;
- void *closure;
- const char *format;
- cairo_status_t status;
-
- if (! target->is_vector)
- continue;
-
- if (! cairo_test_is_target_enabled (ctx, target->name))
- continue;
-
- format = cairo_boilerplate_content_name (target->content);
- xasprintf (&base_name, "%s/fallback-resolution.%s.%s",
- path, target->name,
- format);
-
- surface = (target->create_surface) (base_name,
- target->content,
- SIZE, SIZE,
- SIZE, SIZE,
- CAIRO_BOILERPLATE_MODE_TEST,
- &closure);
-
- if (surface == NULL) {
- free (base_name);
- continue;
- }
-
- if (ret == CAIRO_TEST_UNTESTED)
- ret = CAIRO_TEST_SUCCESS;
-
- cairo_surface_destroy (surface);
- if (target->cleanup)
- target->cleanup (closure);
- free (base_name);
-
- /* we need to recreate the surface for each resolution as we include
- * SVG in testing which does not support the paginated interface.
- */
- for (n = 0; n < num_ppi; n++) {
- char *test_name;
- cairo_bool_t pass;
-
- xasprintf (&test_name, "fallback-resolution.ppi%gx%g",
- ppi[n].x, ppi[n].y);
- xasprintf (&base_name, "%s/%s.%s.%s",
- path, test_name,
- target->name,
- format);
-
- surface = (target->create_surface) (base_name,
- target->content,
- SIZE + 25, SIZE + 25,
- SIZE + 25, SIZE + 25,
- CAIRO_BOILERPLATE_MODE_TEST,
- &closure);
- if (surface == NULL || cairo_surface_status (surface)) {
- cairo_test_log (ctx, "Failed to generate surface: %s.%s\n",
- target->name,
- format);
- free (base_name);
- free (test_name);
- ret = CAIRO_TEST_FAILURE;
- continue;
- }
-
- cairo_test_log (ctx,
- "Testing fallback-resolution %gx%g with %s target\n",
- ppi[n].x, ppi[n].y, target->name);
- printf ("%s:\t", base_name);
- fflush (stdout);
-
- if (target->force_fallbacks != NULL)
- target->force_fallbacks (surface, ppi[n].x, ppi[n].y);
- cr = cairo_create (surface);
-#if SET_TOLERANCE
- cairo_set_tolerance (cr, 3.0);
-#endif
-
- cairo_surface_set_device_offset (surface, 25, 25);
-
- cairo_save (cr); {
- cairo_set_source_rgb (cr, 1, 1, 1);
- cairo_paint (cr);
- } cairo_restore (cr);
-
- /* First draw the top half in a conventional way. */
- cairo_save (cr); {
- cairo_rectangle (cr, 0, 0, SIZE, SIZE / 2.0);
- cairo_clip (cr);
-
- draw (cr, SIZE, SIZE);
- } cairo_restore (cr);
-
- /* Then draw the bottom half in a separate group,
- * (exposing a bug in 1.6.4 with the group not being
- * rendered with the correct fallback resolution). */
- cairo_save (cr); {
- cairo_rectangle (cr, 0, SIZE / 2.0, SIZE, SIZE / 2.0);
- cairo_clip (cr);
-
- cairo_push_group (cr); {
- draw (cr, SIZE, SIZE);
- } cairo_pop_group_to_source (cr);
-
- cairo_paint (cr);
- } cairo_restore (cr);
-
- status = cairo_status (cr);
- cairo_destroy (cr);
-
- pass = FALSE;
- if (status) {
- cairo_test_log (ctx, "Error: Failed to create target surface: %s\n",
- cairo_status_to_string (status));
- ret = CAIRO_TEST_FAILURE;
- } else {
- /* extract the image and compare it to our reference */
- if (! check_result (ctx, target, test_name, base_name, surface))
- ret = CAIRO_TEST_FAILURE;
- else
- pass = TRUE;
- }
- cairo_surface_destroy (surface);
- if (target->cleanup)
- target->cleanup (closure);
-
- free (base_name);
- free (test_name);
-
- if (pass) {
- printf ("PASS\n");
- } else {
- printf ("FAIL\n");
- }
- fflush (stdout);
- }
- }
-
- return ret;
-}
-
-CAIRO_TEST (fallback_resolution,
- "Check handling of fallback resolutions",
- "fallback", /* keywords */
- NULL, /* requirements */
- 0, 0,
- preamble, NULL)