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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_WEB_FONT_TYPEFACE_FACTORY_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_WEB_FONT_TYPEFACE_FACTORY_H_
#include "third_party/skia/include/core/SkFontMgr.h"
#include "build/build_config.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#if defined(OS_WIN) || defined(OS_MAC)
#include "third_party/skia/include/ports/SkFontMgr_empty.h"
#endif
namespace blink {
// Decides which Skia Fontmanager to use for instantiating a web font. In the
// regular case, this would be default font manager used for the platform.
// However, for variable fonts, color bitmap font formats and CFF2 fonts we want
// to use FreeType on Windows and Mac.
class WebFontTypefaceFactory {
STACK_ALLOCATED();
public:
static bool CreateTypeface(const sk_sp<SkData>, sk_sp<SkTypeface>&);
// TODO(drott): This should be going away in favor of a new API on SkTypeface:
// https://bugs.chromium.org/p/skia/issues/detail?id=7121
static sk_sp<SkFontMgr> FontManagerForVariations();
static sk_sp<SkFontMgr> FontManagerForSbix();
static sk_sp<SkFontMgr> FreeTypeFontManager();
static sk_sp<SkFontMgr> FontManagerForColrCpal();
private:
// These values are written to logs. New enum values can be added, but
// existing enums must never be renumbered or deleted and reused.
enum WebFontInstantiationResult {
kErrorInstantiatingVariableFont = 0,
kSuccessConventionalWebFont = 1,
kSuccessVariableWebFont = 2,
kSuccessCbdtCblcColorFont = 3,
kSuccessCff2Font = 4,
kSuccessSbixFont = 5,
kSuccessColrCpalFont = 6,
kMaxWebFontInstantiationResult = 7
};
static sk_sp<SkFontMgr> DefaultFontManager();
static void ReportWebFontInstantiationResult(WebFontInstantiationResult);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_FONTS_WEB_FONT_TYPEFACE_FACTORY_H_
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