82 lines
2.9 KiB
C++
82 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "COLRFonts.h"
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#include "gfxFontUtils.h"
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#include "harfbuzz/hb.h"
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#include "MockDrawTarget.h"
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#include "MockScaledFont.h"
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#include "FuzzingInterface.h"
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#include "mozilla/Preferences.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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static int FuzzingRunCOLRv1(const uint8_t* data, size_t size) {
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gfxFontUtils::AutoHBBlob hb_data_blob(hb_blob_create(
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(const char*)data, size, HB_MEMORY_MODE_READONLY, nullptr, nullptr));
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hb_face_t* hb_data_face = hb_face_create(hb_data_blob, 0);
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if (!hb_data_face) {
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return 0;
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}
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gfxFontUtils::AutoHBBlob colr(
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hb_face_reference_table(hb_data_face, TRUETYPE_TAG('C', 'O', 'L', 'R')));
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gfxFontUtils::AutoHBBlob cpal(
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hb_face_reference_table(hb_data_face, TRUETYPE_TAG('C', 'P', 'A', 'L')));
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if (!colr || !cpal || !COLRFonts::ValidateColorGlyphs(colr, cpal)) {
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hb_face_destroy(hb_data_face);
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return 0;
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}
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const float kPixelSize = 16.0f;
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unsigned glyph_count = hb_face_get_glyph_count(hb_data_face);
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hb_font_t* hb_data_font = hb_font_create(hb_data_face);
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uint32_t scale = NS_round(kPixelSize * 65536.0); // size as 16.16 fixed-point
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hb_font_set_scale(hb_data_font, scale, scale);
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RefPtr dt = new MockDrawTarget();
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RefPtr uf = new MockUnscaledFont();
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RefPtr sf = new MockScaledFont(uf, hb_data_font);
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Float f2p = kPixelSize / hb_face_get_upem(hb_data_face);
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auto colorPalette =
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MakeUnique<nsTArray<sRGBColor>>(COLRFonts::CreateColorPalette(
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hb_data_face, nullptr, nullptr, "dummy"_ns));
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for (unsigned i = 0; i <= glyph_count; ++i) {
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if (COLRFonts::GetColrTableVersion(colr) == 1) {
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Rect bounds =
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COLRFonts::GetColorGlyphBounds(colr, hb_data_font, i, dt, sf, f2p);
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const auto* paintGraph = COLRFonts::GetGlyphPaintGraph(colr, i);
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if (paintGraph) {
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dt->PushClipRect(bounds);
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COLRFonts::PaintGlyphGraph(colr, hb_data_font, paintGraph, dt, nullptr,
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sf, DrawOptions(), Point(), sRGBColor(),
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colorPalette.get(), i, f2p);
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dt->PopClip();
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}
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}
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const auto* layers = COLRFonts::GetGlyphLayers(colr, i);
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if (layers) {
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COLRFonts::PaintGlyphLayers(colr, hb_data_face, layers, dt, nullptr, sf,
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DrawOptions(), Point(), sRGBColor(),
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colorPalette.get());
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}
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}
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hb_font_destroy(hb_data_font);
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hb_face_destroy(hb_data_face);
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return 0;
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}
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int FuzzingInitCOLRv1(int* argc, char*** argv) {
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Preferences::SetBool("gfx.font_rendering.colr_v1.enabled", true);
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return 0;
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}
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MOZ_FUZZING_INTERFACE_RAW(FuzzingInitCOLRv1, FuzzingRunCOLRv1, GfxCOLRv1);
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