Rename FontConfigInterface font manager files.

src/fonts/SkFontMgr_fontconfig.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include "SkFontConfigInterface.h"
-#include "SkFontConfigTypeface.h"
-#include "SkFontDescriptor.h"
-#include "SkFontMgr.h"
-#include "SkFontStyle.h"
-#include "SkMutex.h"
-#include "SkString.h"
-#include "SkTypeface.h"
-#include "SkTypefaceCache.h"
-#include "SkResourceCache.h"
-
-SkStreamAsset* SkTypeface_FCI::onOpenStream(int* ttcIndex) const {
-    *ttcIndex =  this->getIdentity().fTTCIndex;
-
-    SkStreamAsset* stream = this->getLocalStream();
-    if (stream) {
-        return stream->duplicate();
-    }
-
-    return fFCI->openStream(this->getIdentity());
-}
-
-void SkTypeface_FCI::onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocalStream) const {
-    SkString name;
-    this->getFamilyName(&name);
-    desc->setFamilyName(name.c_str());
-    desc->setStyle(this->fontStyle());
-    *isLocalStream = SkToBool(this->getLocalStream());
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-class SkFontStyleSet_FCI : public SkFontStyleSet {
-public:
-    SkFontStyleSet_FCI() {}
-
-    int count() override { return 0; }
-    void getStyle(int index, SkFontStyle*, SkString* style) override { SkASSERT(false); }
-    SkTypeface* createTypeface(int index) override { SkASSERT(false); return nullptr; }
-    SkTypeface* matchStyle(const SkFontStyle& pattern) override { return nullptr; }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-
-class SkFontRequestCache {
-public:
-    struct Request : public SkResourceCache::Key {
-    private:
-        Request(const char* name, size_t nameLen, const SkFontStyle& style) : fStyle(style) {
-            /** Pointer to just after the last field of this class. */
-            char* content = const_cast<char*>(SkTAfter<const char>(&this->fStyle));
-
-            // No holes.
-            SkASSERT(SkTAddOffset<char>(this, sizeof(SkResourceCache::Key) + keySize) == content);
-
-            // Has a size divisible by size of uint32_t.
-            SkASSERT((content - reinterpret_cast<char*>(this)) % sizeof(uint32_t) == 0);
-
-            size_t contentLen = SkAlign4(nameLen);
-            sk_careful_memcpy(content, name, nameLen);
-            sk_bzero(content + nameLen, contentLen - nameLen);
-            this->init(nullptr, 0, keySize + contentLen);
-        }
-        const SkFontStyle fStyle;
-        /** The sum of the sizes of the fields of this class. */
-        static const size_t keySize = sizeof(fStyle);
-
-    public:
-        static Request* Create(const char* name, const SkFontStyle& style) {
-            size_t nameLen = name ? strlen(name) : 0;
-            size_t contentLen = SkAlign4(nameLen);
-            char* storage = new char[sizeof(Request) + contentLen];
-            return new (storage) Request(name, nameLen, style);
-        }
-        void operator delete(void* storage) {
-            delete[] reinterpret_cast<char*>(storage);
-        }
-    };
-
-
-private:
-    struct Result : public SkResourceCache::Rec {
-        Result(Request* request, SkTypeface* typeface)
-            : fRequest(request)
-            , fFace(SkSafeRef(typeface)) {}
-        Result(Result&&) = default;
-        Result& operator=(Result&&) = default;
-
-        const Key& getKey() const override { return *fRequest; }
-        size_t bytesUsed() const override { return fRequest->size() + sizeof(fFace); }
-        const char* getCategory() const override { return "request_cache"; }
-        SkDiscardableMemory* diagnostic_only_getDiscardable() const override { return nullptr; }
-
-        SkAutoTDelete<Request> fRequest;
-        SkAutoTUnref<SkTypeface> fFace;
-    };
-
-    SkResourceCache fCachedResults;
-
-public:
-    SkFontRequestCache(size_t maxSize) : fCachedResults(maxSize) {}
-
-    /** Takes ownership of request. It will be deleted when no longer needed. */
-    void add(SkTypeface* face, Request* request) {
-        fCachedResults.add(new Result(request, face));
-    }
-    /** Does not take ownership of request. */
-    SkTypeface* findAndRef(Request* request) {
-        SkTypeface* face = nullptr;
-        fCachedResults.find(*request, [](const SkResourceCache::Rec& rec, void* context) -> bool {
-            const Result& result = static_cast<const Result&>(rec);
-            SkTypeface** face = static_cast<SkTypeface**>(context);
-
-            *face = result.fFace;
-            return true;
-        }, &face);
-        return SkSafeRef(face);
-    }
-};
-
-///////////////////////////////////////////////////////////////////////////////
-
-static bool find_by_FontIdentity(SkTypeface* cachedTypeface, void* ctx) {
-    typedef SkFontConfigInterface::FontIdentity FontIdentity;
-    SkTypeface_FCI* cachedFCTypeface = static_cast<SkTypeface_FCI*>(cachedTypeface);
-    FontIdentity* identity = static_cast<FontIdentity*>(ctx);
-
-    return cachedFCTypeface->getIdentity() == *identity;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-class SkFontMgr_FCI : public SkFontMgr {
-    SkAutoTUnref<SkFontConfigInterface> fFCI;
-    SkAutoTUnref<SkDataTable> fFamilyNames;
-    SkTypeface_FreeType::Scanner fScanner;
-
-    mutable SkMutex fMutex;
-    mutable SkTypefaceCache fTFCache;
-
-    // The value of maxSize here is a compromise between cache hits and cache size.
-    // See https://crbug.com/424082#63 for reason for current size.
-    static const size_t kMaxSize = 1 << 15;
-    mutable SkFontRequestCache fCache;
-
-public:
-    SkFontMgr_FCI(SkFontConfigInterface* fci)
-        : fFCI(fci)
-        , fFamilyNames(fFCI->getFamilyNames())
-        , fCache(kMaxSize)
-    {}
-
-protected:
-    int onCountFamilies() const override {
-        return fFamilyNames->count();
-    }
-
-    void onGetFamilyName(int index, SkString* familyName) const override {
-        familyName->set(fFamilyNames->atStr(index));
-    }
-
-    SkFontStyleSet* onCreateStyleSet(int index) const override {
-        return this->onMatchFamily(fFamilyNames->atStr(index));
-    }
-
-    SkFontStyleSet* onMatchFamily(const char familyName[]) const override {
-        return new SkFontStyleSet_FCI();
-    }
-
-    SkTypeface* onMatchFamilyStyle(const char familyName[],
-                                   const SkFontStyle&) const override { return nullptr; }
-    SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&,
-                                            const char* bcp47[], int bcp47Count,
-                                            SkUnichar character) const override {
-        return nullptr;
-    }
-    SkTypeface* onMatchFaceStyle(const SkTypeface*,
-                                 const SkFontStyle&) const override { return nullptr; }
-
-    SkTypeface* onCreateFromData(SkData*, int ttcIndex) const override { return nullptr; }
-
-    SkTypeface* onCreateFromStream(SkStreamAsset* bareStream, int ttcIndex) const override {
-        SkAutoTDelete<SkStreamAsset> stream(bareStream);
-        const size_t length = stream->getLength();
-        if (!length) {
-            return nullptr;
-        }
-        if (length >= 1024 * 1024 * 1024) {
-            return nullptr;  // don't accept too large fonts (>= 1GB) for safety.
-        }
-
-        // TODO should the caller give us the style or should we get it from freetype?
-        SkFontStyle style;
-        bool isFixedWidth = false;
-        if (!fScanner.scanFont(stream, 0, nullptr, &style, &isFixedWidth, nullptr)) {
-            return nullptr;
-        }
-
-        return SkTypeface_FCI::Create(style, isFixedWidth, stream.release(), ttcIndex);
-    }
-
-    SkTypeface* onCreateFromFile(const char path[], int ttcIndex) const override {
-        SkAutoTDelete<SkStreamAsset> stream(SkStream::NewFromFile(path));
-        return stream.get() ? this->createFromStream(stream.release(), ttcIndex) : nullptr;
-    }
-
-    SkTypeface* onLegacyCreateTypeface(const char requestedFamilyName[],
-                                       SkFontStyle requestedStyle) const override
-    {
-        SkAutoMutexAcquire ama(fMutex);
-
-        // Check if this request is already in the request cache.
-        using Request = SkFontRequestCache::Request;
-        SkAutoTDelete<Request> request(Request::Create(requestedFamilyName, requestedStyle));
-        SkTypeface* face = fCache.findAndRef(request);
-        if (face) {
-            return face;
-        }
-
-        SkFontConfigInterface::FontIdentity identity;
-        SkString outFamilyName;
-        SkFontStyle outStyle;
-        if (!fFCI->matchFamilyName(requestedFamilyName, requestedStyle,
-                                   &identity, &outFamilyName, &outStyle))
-        {
-            return nullptr;
-        }
-
-        // Check if a typeface with this FontIdentity is already in the FontIdentity cache.
-        face = fTFCache.findByProcAndRef(find_by_FontIdentity, &identity);
-        if (!face) {
-            face = SkTypeface_FCI::Create(fFCI, identity, outFamilyName, outStyle);
-            // Add this FontIdentity to the FontIdentity cache.
-            fTFCache.add(face);
-        }
-        // Add this request to the request cache.
-        fCache.add(face, request.release());
-
-        return face;
-    }
-};
-
-SK_API SkFontMgr* SkFontMgr_New_FCI(SkFontConfigInterface* fci) {
-    SkASSERT(fci);
-    return new SkFontMgr_FCI(fci);
-}
+#include "../ports/SkFontMgr_FontConfigInterface.cpp"