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[tests] Enable more gid misc calls on draw fuzzer

This commit is contained in:
Ebrahim Byagowi 2020-05-21 07:00:40 +04:30
parent c68ab4b52b
commit 8a5368e2d6
1 changed files with 40 additions and 2 deletions
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42
test/fuzzing/hb-draw-fuzzer.cc
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@ -77,6 +77,42 @@ _close_path (void *user_data_)
}
#endif
/* Similar to test-ot-face.c's #test_font() */
static void misc_calls_for_gid (hb_face_t *face, hb_font_t *font, hb_set_t *set, hb_codepoint_t cp)
{
/* Other gid specific misc calls */
hb_face_collect_variation_unicodes (face, cp, set);
hb_codepoint_t g;
hb_font_get_nominal_glyph (font, cp, &g);
hb_font_get_variation_glyph (font, cp, cp, &g);
hb_font_get_glyph_h_advance (font, cp);
hb_font_get_glyph_v_advance (font, cp);
hb_position_t x, y;
hb_font_get_glyph_h_origin (font, cp, &x, &y);
hb_font_get_glyph_v_origin (font, cp, &x, &y);
hb_font_get_glyph_contour_point (font, cp, 0, &x, &y);
char buf[64];
hb_font_get_glyph_name (font, cp, buf, sizeof (buf));
hb_ot_color_palette_get_name_id (face, cp);
hb_ot_color_palette_color_get_name_id (face, cp);
hb_ot_color_palette_get_flags (face, cp);
hb_ot_color_palette_get_colors (face, cp, 0, nullptr, nullptr);
hb_ot_color_glyph_get_layers (face, cp, 0, nullptr, nullptr);
hb_blob_destroy (hb_ot_color_glyph_reference_svg (face, cp));
hb_blob_destroy (hb_ot_color_glyph_reference_png (font, cp));
hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR, cp, 0, nullptr, nullptr);
hb_ot_math_get_glyph_italics_correction (font, cp);
hb_ot_math_get_glyph_top_accent_attachment (font, cp);
hb_ot_math_is_glyph_extended_shape (face, cp);
hb_ot_math_get_glyph_kerning (font, cp, HB_OT_MATH_KERN_BOTTOM_RIGHT, 0);
hb_ot_math_get_glyph_variants (font, cp, HB_DIRECTION_TTB, 0, nullptr, nullptr);
hb_ot_math_get_glyph_assembly (font, cp, HB_DIRECTION_BTT, 0, nullptr, nullptr, nullptr);
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
hb_blob_t *blob = hb_blob_create ((const char *) data, size,
@ -108,6 +144,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
hb_draw_funcs_set_close_path_func (funcs, (hb_draw_close_path_func_t) _close_path);
#endif
volatile unsigned counter = !glyph_count;
hb_set_t *set = hb_set_create ();
for (unsigned gid = 0; gid < glyph_count; ++gid)
{
#ifdef HB_EXPERIMENTAL_API
@ -122,9 +159,10 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
if (!counter) counter += 1;
/* misc calls, TODO: test more of calls working with some specific gid */
hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR, gid, 0, nullptr, nullptr);
/* other misc calls */
misc_calls_for_gid (face, font, set, gid);
}
hb_set_destroy (set);
assert (counter);
#ifdef HB_EXPERIMENTAL_API
hb_draw_funcs_destroy (funcs);