HarfBuzz text shaping engine
http://harfbuzz.github.io/
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52 lines
1.6 KiB
52 lines
1.6 KiB
#include "hb-fuzzer.hh" |
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#include <hb-ot.h> |
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#include <string.h> |
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) |
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{ |
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hb_blob_t *blob = hb_blob_create ((const char *)data, size, |
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HB_MEMORY_MODE_READONLY, NULL, NULL); |
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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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{ |
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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, NULL, 0); |
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hb_buffer_destroy (buffer); |
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} |
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uint32_t text32[16]; |
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if (size > sizeof (text32)) { |
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memcpy(text32, data + size - sizeof (text32), sizeof (text32)); |
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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, NULL, 0); |
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unsigned int len = hb_buffer_get_length (buffer); |
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hb_glyph_info_t *infos = hb_buffer_get_glyph_infos (buffer, NULL); |
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//hb_glyph_position_t *positions = hb_buffer_get_glyph_positions (buffer, NULL); |
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for (unsigned int i = 0; i < len; i++) |
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{ |
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hb_glyph_info_t info = infos[i]; |
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//hb_glyph_position_t pos = positions[i]; |
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hb_glyph_extents_t extents; |
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hb_font_get_glyph_extents (font, info.codepoint, &extents); |
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} |
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hb_buffer_destroy (buffer); |
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} |
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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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