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NativeFontResourceFreeType.cpp
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NativeFontResourceFreeType.cpp
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "NativeFontResourceFreeType.h"
#include "UnscaledFontFreeType.h"
#include "Logging.h"
namespace mozilla {
namespace gfx {
NativeFontResourceFreeType::NativeFontResourceFreeType(
UniquePtr<uint8_t[]>&& aFontData, uint32_t aDataLength, FT_Face aFace)
: mFontData(std::move(aFontData)), mDataLength(aDataLength), mFace(aFace) {}
NativeFontResourceFreeType::~NativeFontResourceFreeType() {
if (mFace) {
Factory::ReleaseFTFace(mFace);
mFace = nullptr;
}
}
template <class T>
already_AddRefed<T> NativeFontResourceFreeType::CreateInternal(
uint8_t* aFontData, uint32_t aDataLength, FT_Library aFTLibrary) {
if (!aFontData || !aDataLength) {
return nullptr;
}
UniquePtr<uint8_t[]> fontData(new (fallible) uint8_t[aDataLength]);
if (!fontData) {
return nullptr;
}
memcpy(fontData.get(), aFontData, aDataLength);
FT_Face face =
Factory::NewFTFaceFromData(aFTLibrary, fontData.get(), aDataLength, 0);
if (!face) {
return nullptr;
}
if (FT_Select_Charmap(face, FT_ENCODING_UNICODE) != FT_Err_Ok &&
FT_Select_Charmap(face, FT_ENCODING_MS_SYMBOL) != FT_Err_Ok) {
Factory::ReleaseFTFace(face);
return nullptr;
}
RefPtr<T> resource = new T(std::move(fontData), aDataLength, face);
return resource.forget();
}
#ifdef MOZ_WIDGET_ANDROID
already_AddRefed<NativeFontResourceFreeType> NativeFontResourceFreeType::Create(
uint8_t* aFontData, uint32_t aDataLength, FT_Library aFTLibrary) {
return CreateInternal<NativeFontResourceFreeType>(aFontData, aDataLength,
aFTLibrary);
}
already_AddRefed<UnscaledFont> NativeFontResourceFreeType::CreateUnscaledFont(
uint32_t aIndex, const uint8_t* aInstanceData,
uint32_t aInstanceDataLength) {
RefPtr<UnscaledFont> unscaledFont = new UnscaledFontFreeType(mFace, this);
return unscaledFont.forget();
}
#endif
FT_Face NativeFontResourceFreeType::CloneFace() {
return Factory::NewFTFaceFromData(mFace->glyph->library, mFontData.get(),
mDataLength, 0);
}
#ifdef MOZ_WIDGET_GTK
NativeFontResourceFontconfig::NativeFontResourceFontconfig(
UniquePtr<uint8_t[]>&& aFontData, uint32_t aDataLength, FT_Face aFace)
: NativeFontResourceFreeType(std::move(aFontData), aDataLength, aFace) {}
already_AddRefed<UnscaledFont> NativeFontResourceFontconfig::CreateUnscaledFont(
uint32_t aIndex, const uint8_t* aInstanceData,
uint32_t aInstanceDataLength) {
RefPtr<UnscaledFont> unscaledFont = new UnscaledFontFontconfig(mFace, this);
return unscaledFont.forget();
}
already_AddRefed<NativeFontResourceFontconfig>
NativeFontResourceFontconfig::Create(uint8_t* aFontData, uint32_t aDataLength,
FT_Library aFTLibrary) {
return CreateInternal<NativeFontResourceFontconfig>(aFontData, aDataLength,
aFTLibrary);
}
#endif
} // namespace gfx
} // namespace mozilla