| /* |
| * Copyright (C) 2007-2010, 2013, 2016 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "FontCustomPlatformData.h" |
| |
| #include "FontCreationContext.h" |
| #include "FontDescription.h" |
| #include "FontMemoryResource.h" |
| #include "FontPlatformData.h" |
| #include "OpenTypeUtilities.h" |
| #include "SharedBuffer.h" |
| #include <wtf/RetainPtr.h> |
| #include <wtf/text/Base64.h> |
| #include <wtf/win/GDIObject.h> |
| |
| #if USE(CG) |
| #include <pal/spi/cg/CoreGraphicsSPI.h> |
| #endif |
| |
| #if USE(DIRECT2D) |
| #include "DirectWriteUtilities.h" |
| #include <dwrite_3.h> |
| #endif |
| |
| namespace WebCore { |
| |
| FontCustomPlatformData::FontCustomPlatformData(const String& name, FontPlatformData::CreationData&& creationData) |
| : name(name) |
| , creationData(WTFMove(creationData)) |
| { |
| } |
| |
| FontCustomPlatformData::~FontCustomPlatformData() = default; |
| |
| FontPlatformData FontCustomPlatformData::fontPlatformData(const FontDescription& fontDescription, bool bold, bool italic, const FontCreationContext&) |
| { |
| int size = fontDescription.computedPixelSize(); |
| FontRenderingMode renderingMode = fontDescription.renderingMode(); |
| |
| auto faceName = name.charactersWithNullTermination(); |
| if (faceName.size() > LF_FACESIZE) { |
| faceName.resize(LF_FACESIZE); |
| faceName.last() = 0; |
| } |
| |
| LOGFONT logFont { }; |
| memcpy(logFont.lfFaceName, faceName.data(), sizeof(logFont.lfFaceName[0]) * std::min<size_t>(static_cast<size_t>(LF_FACESIZE), 1 + name.length())); |
| |
| logFont.lfHeight = -size; |
| if (renderingMode == FontRenderingMode::Normal) |
| logFont.lfHeight *= 32; |
| logFont.lfWidth = 0; |
| logFont.lfEscapement = 0; |
| logFont.lfOrientation = 0; |
| logFont.lfUnderline = false; |
| logFont.lfStrikeOut = false; |
| logFont.lfCharSet = DEFAULT_CHARSET; |
| #if USE(CG) || USE(CAIRO) || USE(DIRECT2D) |
| logFont.lfOutPrecision = OUT_TT_ONLY_PRECIS; |
| #else |
| logFont.lfOutPrecision = OUT_TT_PRECIS; |
| #endif |
| logFont.lfQuality = CLEARTYPE_QUALITY; |
| logFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE; |
| logFont.lfItalic = italic; |
| logFont.lfWeight = bold ? 700 : 400; |
| |
| auto hfont = adoptGDIObject(::CreateFontIndirect(&logFont)); |
| #if USE(CORE_TEXT) |
| auto ctFont = adoptCF(CTFontCreateWithFontDescriptor(fontDescriptor.get(), size, nullptr)); |
| auto cgFont = adoptCF(CTFontCopyGraphicsFont(ctFont.get(), nullptr)); |
| return FontPlatformData(WTFMove(hfont), ctFont.get(), cgFont.get(), size, bold, italic, renderingMode == FontRenderingMode::Alternate); |
| #else |
| auto font = DirectWrite::createWithPlatformFont(logFont); |
| return FontPlatformData(WTFMove(hfont), WTFMove(font), size, bold, italic, renderingMode == FontRenderingMode::Alternate); |
| #endif |
| } |
| |
| // Creates a unique and unpredictable font name, in order to avoid collisions and to |
| // not allow access from CSS. |
| static String createUniqueFontName() |
| { |
| GUID fontUuid; |
| CoCreateGuid(&fontUuid); |
| |
| auto fontName = base64EncodeToString(reinterpret_cast<char*>(&fontUuid), sizeof(fontUuid)); |
| ASSERT(fontName.length() < LF_FACESIZE); |
| return fontName; |
| } |
| |
| std::unique_ptr<FontCustomPlatformData> createFontCustomPlatformData(SharedBuffer& buffer, const String& itemInCollection) |
| { |
| String fontName = createUniqueFontName(); |
| auto fontResource = renameAndActivateFont(buffer, fontName); |
| if (!fontResource) |
| return nullptr; |
| FontPlatformData::CreationData creationData = { buffer, itemInCollection, fontResource.releaseNonNull() }; |
| auto result = makeUnique<FontCustomPlatformData>(fontName, WTFMove(creationData)); |
| #if USE(CORE_TEXT) |
| result->fontDescriptor = adoptCF(CTFontManagerCreateFontDescriptorFromData(buffer.createCFData().get())); |
| #endif |
| return result; |
| } |
| |
| bool FontCustomPlatformData::supportsFormat(const String& format) |
| { |
| return equalLettersIgnoringASCIICase(format, "truetype") |
| || equalLettersIgnoringASCIICase(format, "opentype") |
| || equalLettersIgnoringASCIICase(format, "woff"); |
| } |
| |
| } |