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#include <string.h>
#include <glib/gstdio.h>
#include <gtk/gtk.h>
#include <stdlib.h>
#include "reftest-compare.h"
char *
file_replace_extension (const char *old_file,
const char *old_ext,
const char *new_ext)
{
GString *file = g_string_new (NULL);
if (g_str_has_suffix (old_file, old_ext))
g_string_append_len (file, old_file, strlen (old_file) - strlen (old_ext));
else
g_string_append (file, old_file);
g_string_append (file, new_ext);
return g_string_free (file, FALSE);
}
static char *
get_output_file (const char *file,
const char *orig_ext,
const char *new_ext)
{
const char *dir;
char *result, *base;
char *name;
dir = g_get_tmp_dir ();
base = g_path_get_basename (file);
name = file_replace_extension (base, orig_ext, new_ext);
result = g_strconcat (dir, G_DIR_SEPARATOR_S, name, NULL);
g_free (base);
g_free (name);
return result;
}
static void
save_image (cairo_surface_t *surface,
const char *test_name,
const char *extension)
{
char *filename = get_output_file (test_name, ".node", extension);
g_test_message ("Storing test result image at %s", filename);
g_assert (cairo_surface_write_to_png (surface, filename) == CAIRO_STATUS_SUCCESS);
g_free (filename);
}
/*
* Arguments:
* 1) .node file to compare
* 2) .png file to compare the rendered .node file to
*/
int
main (int argc, char **argv)
{
cairo_surface_t *reference_surface = NULL;
cairo_surface_t *rendered_surface = NULL;
cairo_surface_t *diff_surface = NULL;
GdkTexture *texture;
GskRenderer *renderer;
GdkWindow *window;
GskRenderNode *node;
const char *node_file;
const char *png_file;
g_assert (argc == 3);
gtk_init ();
node_file = argv[1];
png_file = argv[2];
window = gdk_window_new_toplevel (gdk_display_get_default(), 10 , 10);
renderer = gsk_renderer_new_for_window (window);
g_test_message ("Node file: '%s'\n", node_file);
g_test_message ("PNG file: '%s'\n", png_file);
/* Load the render node from the given .node file */
{
GBytes *bytes;
GError *error = NULL;
gsize len;
char *contents;
if (!g_file_get_contents (node_file, &contents, &len, &error))
{
g_test_message ("Could not open node file: %s\n", error->message);
g_clear_error (&error);
g_test_fail ();
return -1;
}
bytes = g_bytes_new_take (contents, len);
node = gsk_render_node_deserialize (bytes, &error);
g_bytes_unref (bytes);
g_assert (node != NULL);
}
/* Render the .node file and download to cairo surface */
texture = gsk_renderer_render_texture (renderer, node, NULL);
g_assert (texture != NULL);
rendered_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
gdk_texture_get_width (texture),
gdk_texture_get_height (texture));
gdk_texture_download (texture,
cairo_image_surface_get_data (rendered_surface),
cairo_image_surface_get_stride (rendered_surface));
cairo_surface_mark_dirty (rendered_surface);
/* Load the given reference png file */
reference_surface = cairo_image_surface_create_from_png (png_file);
g_assert (reference_surface != NULL);
/* Now compare the two */
diff_surface = reftest_compare_surfaces (rendered_surface, reference_surface);
save_image (rendered_surface, node_file, ".out.png");
if (diff_surface)
save_image (diff_surface, node_file, ".diff.png");
g_assert (diff_surface == NULL);
return 0;
}
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