// Copyright 2020 Google LLC

//

// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#include <stdint.h>

#include <gdk-pixbuf/gdk-pixbuf.h>

#include "fuzzer_temp_file.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {

    if (size < 1) {

        return 0;

    }

    GdkPixbuf *pixbuf, *rotated, *scaled;

    GError *error = NULL;

    char *tmpfile = fuzzer_get_tmpfile(data, size);

    pixbuf = gdk_pixbuf_new_from_file(tmpfile, &error);

    if (error != NULL) {

        g_clear_error(&error);

        fuzzer_release_tmpfile(tmpfile);

        return 0;

    }

    char *buf = (char *) calloc(size + 1, sizeof(char));

    memcpy(buf, data, size);

    buf[size] = '\0';

    gdk_pixbuf_get_width(pixbuf);

    gdk_pixbuf_get_height(pixbuf);

    gdk_pixbuf_get_bits_per_sample(pixbuf);

    scaled = gdk_pixbuf_scale_simple(pixbuf,

            gdk_pixbuf_get_width(pixbuf) / 4,

            gdk_pixbuf_get_height(pixbuf) / 4,

            GDK_INTERP_NEAREST);

    if (scaled) g_object_unref(scaled);

    unsigned int rot_amount = ((unsigned int) data[0]) % 4;

    rotated = gdk_pixbuf_rotate_simple(pixbuf, rot_amount * 90);

    g_object_unref(pixbuf);

    pixbuf = rotated;

    gdk_pixbuf_set_option(pixbuf, buf, buf);

    gdk_pixbuf_get_option(pixbuf, buf);

    free(buf);

    g_clear_object(&pixbuf);

    fuzzer_release_tmpfile(tmpfile);

    return 0;

}