chromium/third_party/blink/renderer/platform/fonts/web_font_typeface_factory.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/platform/fonts/web_font_typeface_factory.h"

#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "build/build_config.h"
#include "skia/ext/font_utils.h"
#include "third_party/blink/renderer/platform/fonts/font_cache.h"
#include "third_party/blink/renderer/platform/fonts/opentype/font_format_check.h"
#include "third_party/skia/include/core/SkStream.h"
#include "third_party/skia/include/core/SkTypeface.h"
#include "third_party/skia/include/ports/SkTypeface_fontations.h"

#if BUILDFLAG(IS_WIN)
#include "third_party/blink/renderer/platform/fonts/win/dwrite_font_format_support.h"
#endif

#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_APPLE)
#include "third_party/skia/include/ports/SkFontMgr_empty.h"
#endif


#include <functional>

namespace blink {

namespace {

bool IsWin() { … }

bool IsApple() { … }

bool IsFreeTypeSystemRasterizer() { … }

sk_sp<SkTypeface> MakeTypefaceDefaultFontMgr(sk_sp<SkData> data) { … }

#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_APPLE)
sk_sp<SkTypeface> MakeTypefaceFallback(sk_sp<SkData> data) {
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_APPLE)
  if (RuntimeEnabledFeatures::FontationsFontBackendEnabled()) {
    std::unique_ptr<SkStreamAsset> stream(new SkMemoryStream(data));
    return SkTypeface_Make_Fontations(std::move(stream), SkFontArguments());
  }
#endif
  return SkFontMgr_New_Custom_Empty()->makeFromData(data, 0);
}
#endif

sk_sp<SkTypeface> MakeTypefaceFontations(sk_sp<SkData> data) { … }

sk_sp<SkTypeface> MakeVariationsTypeface(
    sk_sp<SkData> data,
    const WebFontTypefaceFactory::FontInstantiator& instantiator) { … }

sk_sp<SkTypeface> MakeSbixTypeface(
    sk_sp<SkData> data,
    const WebFontTypefaceFactory::FontInstantiator& instantiator) { … }

sk_sp<SkTypeface> MakeColrV0Typeface(
    sk_sp<SkData> data,
    const WebFontTypefaceFactory::FontInstantiator& instantiator) { … }

sk_sp<SkTypeface> MakeColrV0VariationsTypeface(
    sk_sp<SkData> data,
    const WebFontTypefaceFactory::FontInstantiator& instantiator) { … }

sk_sp<SkTypeface> MakeUseFallbackIfNeeded(
    sk_sp<SkData> data,
    const WebFontTypefaceFactory::FontInstantiator& instantiator) { … }

sk_sp<SkTypeface> MakeFontationsFallbackPreferred(
    sk_sp<SkData> data,
    const WebFontTypefaceFactory::FontInstantiator& instantiator) { … }

}  // namespace

bool WebFontTypefaceFactory::CreateTypeface(sk_sp<SkData> data,
                                            sk_sp<SkTypeface>& typeface) { … }

bool WebFontTypefaceFactory::CreateTypeface(
    sk_sp<SkData> data,
    sk_sp<SkTypeface>& typeface,
    const FontFormatCheck& format_check,
    const FontInstantiator& instantiator) { … }

void WebFontTypefaceFactory::ReportInstantiationResult(
    InstantiationResult result) { … }

}  // namespace blink