8b0e8ac5f5
Eliminates SkFlattenable{Read,Write}Buffer, promoting SkOrdered{Read,Write}Buffer
a step each in the hierarchy.
What used to be this:
SkFlattenableWriteBuffer -> SkOrderedWriteBuffer
SkFlattenableReadBuffer -> SkOrderedReadBuffer
SkFlattenableReadBuffer -> SkValidatingReadBuffer
is now
SkWriteBuffer
SkReadBuffer -> SkValidatingReadBuffer
Benefits:
- code is simpler, names are less wordy
- the generic SkFlattenableFooBuffer code in SkPaint was incorrect; removed
- write buffers are completely devirtualized, important for record speed
This refactoring was mostly mechanical. You aren't going to find anything
interesting in files with less than 10 lines changed.
BUG=skia:
R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com
Author: mtklein@chromium.org
Review URL: https://codereview.chromium.org/134163010
git-svn-id: http://skia.googlecode.com/svn/trunk@13245 2bbb7eff-a529-9590-31e7-b0007b416f81
115 lines
3.2 KiB
C++
115 lines
3.2 KiB
C++
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/*
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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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#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_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_DECLARE_UNFLATTENABLE_OBJECT() \
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virtual Factory getFactory() const SK_OVERRIDE { return NULL; }
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#define SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(flattenable) \
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virtual Factory getFactory() const SK_OVERRIDE { return CreateProc; } \
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static SkFlattenable* CreateProc(SkReadBuffer& buffer) { \
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return SkNEW_ARGS(flattenable, (buffer)); \
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}
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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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kSkUnitMapper_Type,
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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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/** Override this to write data specific to your subclass into the buffer,
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being sure to call your super-class' version first. This data will later
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be passed to your Factory function, returned by getFactory().
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*/
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virtual void flatten(SkWriteBuffer&) const;
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protected:
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SkFlattenable(SkReadBuffer&) {}
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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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