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/* Copyright 2024 Red Hat, Inc.
*
* GTK is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* GTK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GTK; see the file COPYING. If not,
* see <http://www.gnu.org/licenses/>.
*
* Author: Matthias Clasen
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <glib/gi18n-lib.h>
#include <glib/gprintf.h>
#include <glib/gstdio.h>
#include <gtk/gtk.h>
#include "gtk-rendernode-tool.h"
#include "testsuite/reftests/reftest-compare.h"
static GdkTexture *
texture_from_file (const char *filename,
GskRenderer *renderer,
GError **error)
{
GdkTexture *texture;
if (g_str_has_suffix (filename, ".node"))
{
GskRenderNode *node = load_node_file (filename);
texture = gsk_renderer_render_texture (renderer, node, NULL);
gsk_render_node_unref (node);
}
else
{
texture = gdk_texture_new_from_filename (filename, error);
}
return texture;
}
void
do_compare (int *argc,
const char ***argv)
{
GOptionContext *context;
char *opt_filename = NULL;
gboolean opt_quiet = FALSE;
char **filenames = NULL;
char *renderer_name = NULL;
const GOptionEntry entries[] = {
{ "renderer", 0, 0, G_OPTION_ARG_STRING, &renderer_name, N_("Renderer to use"), N_("RENDERER") },
{ "output", 'o', 0, G_OPTION_ARG_FILENAME, &opt_filename, N_("Output file"), N_("FILE") },
{ "quiet", 'q', 0, G_OPTION_ARG_NONE, &opt_quiet, "Don't talk", NULL },
{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames, NULL, N_("FILE1 FILE2") },
{ NULL, }
};
GskRenderer *renderer;
GdkTexture *texture[2];
GdkTexture *diff;
GError *error = NULL;
guint max_diff = 0;
guint pixels_changed = 0;
guint pixels = 0;
g_set_prgname ("gtk4-rendernode-tool compare");
context = g_option_context_new (NULL);
g_option_context_set_translation_domain (context, GETTEXT_PACKAGE);
g_option_context_add_main_entries (context, entries, NULL);
g_option_context_set_summary (context, _("Compare .node or .png files."));
if (!g_option_context_parse (context, argc, (char ***)argv, &error))
{
g_printerr ("%s\n", error->message);
g_error_free (error);
exit (1);
}
g_option_context_free (context);
if (filenames == NULL || g_strv_length (filenames) != 2)
{
g_printerr (_("Must specify two files\n"));
exit (1);
}
renderer = create_renderer (renderer_name, &error);
if (renderer == NULL)
{
g_printerr (_("Failed to create renderer: %s\n"), error->message);
exit (1);
}
for (int i = 0; i < 2; i++)
{
texture[i] = texture_from_file (filenames[i], renderer, &error);
if (texture[i] == NULL)
{
g_printerr (_("Failed to load %s: %s\n"), filenames[i], error->message);
exit (1);
}
}
diff = reftest_compare_textures (texture[0], texture[1],
&max_diff, &pixels_changed, &pixels);
if (opt_filename && diff)
{
if (!gdk_texture_save_to_png (diff, opt_filename))
{
g_printerr (_("Could not save diff image to %s\n"), opt_filename);
exit (1);
}
}
if (!opt_quiet)
{
if (diff)
{
if (opt_filename)
g_print (_("Differences witten to %s.\n"), opt_filename);
else
g_print (_("The images are different.\n"));
}
else
g_print (_("No differences.\n"));
}
if (diff)
exit (1);
g_strfreev (filenames);
g_object_unref (texture[0]);
g_object_unref (texture[1]);
gsk_renderer_unrealize (renderer);
g_object_unref (renderer);
}
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