63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
#include "hb-fuzzer.hh"
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#include <hb-ot.h>
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#include <string.h>
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#include <stdlib.h>
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#define TEST_OT_FACE_NO_MAIN 1
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#include "../api/test-ot-face.c"
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#undef TEST_OT_FACE_NO_MAIN
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extern "C" int LLVMFuzzerTestOneInput (const uint8_t *data, size_t size)
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{
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alloc_state = size; /* see src/failing-alloc.c */
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hb_blob_t *blob = hb_blob_create ((const char *)data, size,
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HB_MEMORY_MODE_READONLY, nullptr, nullptr);
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hb_face_t *face = hb_face_create (blob, 0);
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hb_font_t *font = hb_font_create (face);
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hb_ot_font_set_funcs (font);
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hb_font_set_scale (font, 12, 12);
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unsigned num_coords = 0;
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if (size) num_coords = data[size - 1];
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num_coords = hb_ot_var_get_axis_count (face) > num_coords ? num_coords : hb_ot_var_get_axis_count (face);
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int *coords = (int *) calloc (num_coords, sizeof (int));
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if (size > num_coords + 1)
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for (unsigned i = 0; i < num_coords; ++i)
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coords[i] = ((int) data[size - num_coords + i - 1] - 128) * 10;
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hb_font_set_var_coords_normalized (font, coords, num_coords);
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free (coords);
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{
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const char text[] = "ABCDEXYZ123@_%&)*$!";
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hb_buffer_t *buffer = hb_buffer_create ();
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hb_buffer_add_utf8 (buffer, text, -1, 0, -1);
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hb_buffer_guess_segment_properties (buffer);
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hb_shape (font, buffer, nullptr, 0);
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hb_buffer_destroy (buffer);
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}
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uint32_t text32[16] = {0};
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unsigned int len = sizeof (text32);
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if (size < len)
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len = size;
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if (len)
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memcpy (text32, data + size - len, len);
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/* Misc calls on font. */
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text32[10] = test_font (font, text32[15]) % 256;
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hb_buffer_t *buffer = hb_buffer_create ();
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hb_buffer_add_utf32 (buffer, text32, sizeof (text32) / sizeof (text32[0]), 0, -1);
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hb_buffer_guess_segment_properties (buffer);
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hb_shape (font, buffer, nullptr, 0);
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hb_buffer_destroy (buffer);
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hb_font_destroy (font);
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hb_face_destroy (face);
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hb_blob_destroy (blob);
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return 0;
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}
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