chromium/third_party/blink/renderer/platform/fonts/opentype/open_type_vertical_data.cc

/*
 * Copyright (C) 2012 Koji Ishii <[email protected]>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/platform/fonts/opentype/open_type_vertical_data.h"

#include "base/logging.h"
#include "base/memory/scoped_refptr.h"
#include "base/numerics/safe_conversions.h"
#include "third_party/blink/renderer/platform/fonts/opentype/open_type_types.h"
#include "third_party/blink/renderer/platform/fonts/simple_font_data.h"
#include "third_party/blink/renderer/platform/fonts/skia/skia_text_metrics.h"
#include "third_party/skia/include/core/SkTypeface.h"

namespace blink {
open_type  // namespace open_type

OpenTypeVerticalData::OpenTypeVerticalData(sk_sp<SkTypeface> typeface)
    : … { … }

static void CopyOpenTypeTable(sk_sp<SkTypeface> typeface,
                              SkFontTableTag tag,
                              Vector<char>& destination) { … }

void OpenTypeVerticalData::LoadMetrics(sk_sp<SkTypeface> typeface) { … }

void OpenTypeVerticalData::SetScaleAndFallbackMetrics(float size_per_unit,
                                                      float ascent,
                                                      int height) { … }

float OpenTypeVerticalData::AdvanceHeight(Glyph glyph) const { … }

void OpenTypeVerticalData::GetVerticalTranslationsForGlyphs(
    const SkFont& font,
    const Glyph* glyphs,
    size_t count,
    float* out_xy_array) const { … }

}  // namespace blink