81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdint.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#define WIDTH 10
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#define HEIGHT 20
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#define ROWSTRIDE (WIDTH * 4)
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (!(size >= WIDTH * HEIGHT * 4)) {
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return 0;
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}
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const gchar *profile;
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GdkPixbuf *pixbuf, *tmp;
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GBytes *bytes;
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bytes = g_bytes_new_static(data, size);
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pixbuf = g_object_new(GDK_TYPE_PIXBUF,
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"width", WIDTH,
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"height", HEIGHT,
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"rowstride", ROWSTRIDE,
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"bits-per-sample", 8,"n-channels", 3,
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"has-alpha", FALSE,
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"pixel-bytes", bytes,
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NULL);
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if (pixbuf == NULL) {
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return 0;
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}
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gdk_pixbuf_scale(pixbuf, pixbuf,
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0, 0,
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gdk_pixbuf_get_width(pixbuf) / 4,
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gdk_pixbuf_get_height(pixbuf) / 4,
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0, 0, 0.5, 0.5,
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GDK_INTERP_NEAREST);
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unsigned int rot_amount = ((unsigned int) data[0]) % 4;
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tmp = gdk_pixbuf_rotate_simple(pixbuf, rot_amount * 90);
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tmp = gdk_pixbuf_flip(pixbuf, TRUE);
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tmp = gdk_pixbuf_composite_color_simple(pixbuf,
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gdk_pixbuf_get_width(pixbuf) / 4,
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gdk_pixbuf_get_height(pixbuf) / 4,
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GDK_INTERP_NEAREST,
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128,
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8,
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G_MAXUINT32,
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G_MAXUINT32/2);
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char *buf = (char *) calloc(size + 1, sizeof(char));
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memcpy(buf, data, size);
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buf[size] = '\0';
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gdk_pixbuf_set_option(pixbuf, buf, buf);
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profile = gdk_pixbuf_get_option(pixbuf, buf);
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tmp = gdk_pixbuf_new_from_data(gdk_pixbuf_get_pixels(pixbuf),
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GDK_COLORSPACE_RGB,
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FALSE,
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gdk_pixbuf_get_bits_per_sample(pixbuf),
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gdk_pixbuf_get_width(pixbuf),
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gdk_pixbuf_get_height(pixbuf),
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gdk_pixbuf_get_rowstride(pixbuf),
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NULL,
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NULL);
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tmp = gdk_pixbuf_flip(tmp, TRUE);
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free(buf);
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g_object_unref(pixbuf);
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g_object_unref(tmp);
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return 0;
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}
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