Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/mac/FontCustomPlatformDataMac.cpp

-/*
- * Copyright (C) 2007, 2008, 2010 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 "platform/fonts/FontCustomPlatformData.h"
-
-#include "platform/SharedBuffer.h"
-#include "core/platform/graphics/FontPlatformData.h"
-#include "core/platform/graphics/opentype/OpenTypeSanitizer.h"
-#include "third_party/skia/include/core/SkStream.h"
-#include "third_party/skia/include/core/SkTypeface.h"
-#include "wtf/PassOwnPtr.h"
-
-#include <ApplicationServices/ApplicationServices.h>
-
-namespace WebCore {
-
-FontCustomPlatformData::FontCustomPlatformData(CGFontRef cgFont, PassRefPtr<SkTypeface> typeface)
-    : m_cgFont(AdoptCF, cgFont)
-    , m_typeface(typeface)
-{
-}
-
-FontCustomPlatformData::~FontCustomPlatformData()
-{
-}
-
-FontPlatformData FontCustomPlatformData::fontPlatformData(float size, bool bold, bool italic, FontOrientation orientation, FontWidthVariant widthVariant)
-{
-    return FontPlatformData(m_cgFont.get(), size, bold, italic, orientation, widthVariant);
-}
-
-PassOwnPtr<FontCustomPlatformData> FontCustomPlatformData::create(SharedBuffer* buffer)
-{
-    ASSERT_ARG(buffer, buffer);
-
-    OpenTypeSanitizer sanitizer(buffer);
-    RefPtr<SharedBuffer> transcodeBuffer = sanitizer.sanitize();
-    if (!transcodeBuffer)
-        return nullptr; // validation failed.
-    buffer = transcodeBuffer.get();
-
-    RetainPtr<CFDataRef> bufferData(AdoptCF, CFDataCreate(0, reinterpret_cast<const UInt8*>(buffer->data()), buffer->size()));
-    RetainPtr<CGDataProviderRef> dataProvider(AdoptCF, CGDataProviderCreateWithCFData(bufferData.get()));
-    RetainPtr<CGFontRef> cgFontRef(AdoptCF, CGFontCreateWithDataProvider(dataProvider.get()));
-    if (!cgFontRef)
-        return nullptr;
-
-    // It's unclear whether this is used. It seems like it has the effect of priming the cache.
-    // Since we store this anyways, it might be worthwhile just plumbing this to FontMac.cpp in
-    // a more obvious way.
-    // FIXME: Remove this, add an explicit use, or add a comment explaining why this exists.
-    RefPtr<SkMemoryStream> stream = adoptRef(new SkMemoryStream(buffer->getAsSkData().get()));
-    RefPtr<SkTypeface> typeface = adoptRef(SkTypeface::CreateFromStream(stream.get()));
-    if (!typeface)
-        return nullptr;
-
-    return adoptPtr(new FontCustomPlatformData(cgFontRef.leakRef(), typeface.release()));
-}
-
-bool FontCustomPlatformData::supportsFormat(const String& format)
-{
-    return equalIgnoringCase(format, "truetype") || equalIgnoringCase(format, "opentype") || OpenTypeSanitizer::supportsFormat(format);
-}
-
-}