72c9faab45
This fixes every case where virtual and SK_OVERRIDE were on the same line, which should be the bulk of cases. We'll have to manually clean up the rest over time unless I level up in regexes. for f in (find . -type f); perl -p -i -e 's/virtual (.*)SK_OVERRIDE/\1SK_OVERRIDE/g' $f; end BUG=skia: Review URL: https://codereview.chromium.org/806653007
127 lines
4.1 KiB
C++
127 lines
4.1 KiB
C++
/*
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* Copyright 2006 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkFlattenable_DEFINED
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#define SkFlattenable_DEFINED
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#include "SkRefCnt.h"
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class SkReadBuffer;
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class SkWriteBuffer;
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/*
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* Flattening is straight-forward:
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* 1. call getFactory() so we have a function-ptr to recreate the subclass
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* 2. call flatten(buffer) to write out enough data for the factory to read
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*
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* Unflattening is easy for the caller: new_instance = factory(buffer)
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*
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* The complexity of supporting this is as follows.
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*
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* If your subclass wants to control unflattening, use this macro in your declaration:
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* SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS
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* This will provide a getFactory(), and require that the subclass implements CreateProc.
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*
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* For older buffers (before the DEEPFLATTENING change, the macros below declare
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* a thin factory DeepCreateProc. It checks the version of the buffer, and if it is pre-deep,
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* then it calls through to a (usually protected) constructor, passing the buffer.
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* If the buffer is newer, then it directly calls the "real" factory: CreateProc.
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*/
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#define SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() static void InitializeFlattenables();
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#define SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(flattenable) \
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void flattenable::InitializeFlattenables() {
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#define SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END \
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}
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#define SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(flattenable) \
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SkFlattenable::Registrar(#flattenable, flattenable::CreateProc, \
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flattenable::GetFlattenableType());
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#define SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(flattenable) \
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private: \
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static SkFlattenable* CreateProc(SkReadBuffer&); \
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friend class SkPrivateEffectInitializer; \
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public: \
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Factory getFactory() const SK_OVERRIDE { return CreateProc; }
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/** For SkFlattenable derived objects with a valid type
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This macro should only be used in base class objects in core
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*/
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#define SK_DEFINE_FLATTENABLE_TYPE(flattenable) \
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static Type GetFlattenableType() { \
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return k##flattenable##_Type; \
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}
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/** \class SkFlattenable
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SkFlattenable is the base class for objects that need to be flattened
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into a data stream for either transport or as part of the key to the
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font cache.
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*/
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class SK_API SkFlattenable : public SkRefCnt {
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public:
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enum Type {
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kSkColorFilter_Type,
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kSkDrawLooper_Type,
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kSkImageFilter_Type,
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kSkMaskFilter_Type,
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kSkPathEffect_Type,
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kSkPixelRef_Type,
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kSkRasterizer_Type,
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kSkShader_Type,
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kSkUnused_Type, // used to be SkUnitMapper
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kSkXfermode_Type,
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};
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SK_DECLARE_INST_COUNT(SkFlattenable)
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typedef SkFlattenable* (*Factory)(SkReadBuffer&);
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SkFlattenable() {}
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/** Implement this to return a factory function pointer that can be called
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to recreate your class given a buffer (previously written to by your
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override of flatten().
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*/
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virtual Factory getFactory() const = 0;
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/** Returns the name of the object's class
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*/
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const char* getTypeName() const { return FactoryToName(getFactory()); }
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static Factory NameToFactory(const char name[]);
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static const char* FactoryToName(Factory);
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static bool NameToType(const char name[], Type* type);
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static void Register(const char name[], Factory, Type);
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class Registrar {
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public:
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Registrar(const char name[], Factory factory, Type type) {
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SkFlattenable::Register(name, factory, type);
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}
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};
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/**
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* Override this if your subclass needs to record data that it will need to recreate itself
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* from its CreateProc (returned by getFactory()).
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*/
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virtual void flatten(SkWriteBuffer&) const {}
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private:
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static void InitializeFlattenablesIfNeeded();
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friend class SkGraphics;
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typedef SkRefCnt INHERITED;
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};
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#endif
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