Move SkReadBuffer.h and SkReader32.h out of include.

include/core/SkReadBuffer.h

-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkReadBuffer_DEFINED
-#define SkReadBuffer_DEFINED
-
-#include "SkBitmapHeap.h"
-#include "SkColorFilter.h"
-#include "SkData.h"
-#include "SkDrawLooper.h"
-#include "SkImageFilter.h"
-#include "SkMaskFilter.h"
-#include "SkPath.h"
-#include "SkPathEffect.h"
-#include "SkPicture.h"
-#include "SkRasterizer.h"
-#include "SkReadBuffer.h"
-#include "SkReader32.h"
-#include "SkRefCnt.h"
-#include "SkShader.h"
-#include "SkWriteBuffer.h"
-#include "SkXfermode.h"
-
-class SkBitmap;
-
-#if defined(SK_DEBUG) && defined(SK_BUILD_FOR_MAC)
-    #define DEBUG_NON_DETERMINISTIC_ASSERT
-#endif
-
-class SkReadBuffer {
-public:
-    SkReadBuffer();
-    SkReadBuffer(const void* data, size_t size);
-    SkReadBuffer(SkStream* stream);
-    virtual ~SkReadBuffer();
-
-    enum Version {
-        kFilterLevelIsEnum_Version         = 23,
-        kGradientFlippedFlag_Version       = 24,
-        kDashWritesPhaseIntervals_Version  = 25,
-        kColorShaderNoBool_Version         = 26,
-        kNoUnitMappers_Version             = 27,
-        kNoMoreBitmapFlatten_Version       = 28,
-        kSimplifyLocalMatrix_Version       = 30,
-        kImageFilterUniqueID_Version       = 31,
-        kRemoveAndroidPaintOpts_Version    = 32,
-    };
-
-    /**
-     *  Returns true IFF the version is older than the specified version.
-     */
-    bool isVersionLT(Version targetVersion) const {
-        SkASSERT(targetVersion > 0);
-        return fVersion > 0 && fVersion < targetVersion;
-    }
-
-    /** This may be called at most once; most clients of SkReadBuffer should not mess with it. */
-    void setVersion(int version) {
-        SkASSERT(0 == fVersion || version == fVersion);
-        fVersion = version;
-    }
-
-    enum Flags {
-        kCrossProcess_Flag  = 1 << 0,
-        kScalarIsFloat_Flag = 1 << 1,
-        kPtrIs64Bit_Flag    = 1 << 2,
-        kValidation_Flag    = 1 << 3,
-    };
-
-    void setFlags(uint32_t flags) { fFlags = flags; }
-    uint32_t getFlags() const { return fFlags; }
-
-    bool isCrossProcess() const {
-        return this->isValidating() || SkToBool(fFlags & kCrossProcess_Flag);
-    }
-    bool isScalarFloat() const { return SkToBool(fFlags & kScalarIsFloat_Flag); }
-    bool isPtr64Bit() const { return SkToBool(fFlags & kPtrIs64Bit_Flag); }
-    bool isValidating() const { return SkToBool(fFlags & kValidation_Flag); }
-
-    SkReader32* getReader32() { return &fReader; }
-
-    size_t size() { return fReader.size(); }
-    size_t offset() { return fReader.offset(); }
-    bool eof() { return fReader.eof(); }
-    virtual const void* skip(size_t size) { return fReader.skip(size); }
-    void* readFunctionPtr() { return fReader.readPtr(); }
-
-    // primitives
-    virtual bool readBool();
-    virtual SkColor readColor();
-    virtual SkFixed readFixed();
-    virtual int32_t readInt();
-    virtual SkScalar readScalar();
-    virtual uint32_t readUInt();
-    virtual int32_t read32();
-
-    // strings -- the caller is responsible for freeing the string contents
-    virtual void readString(SkString* string);
-    virtual void* readEncodedString(size_t* length, SkPaint::TextEncoding encoding);
-
-    // common data structures
-    virtual void readPoint(SkPoint* point);
-    SkPoint readPoint() { SkPoint p; this->readPoint(&p); return p; }
-    virtual void readMatrix(SkMatrix* matrix);
-    virtual void readIRect(SkIRect* rect);
-    virtual void readRect(SkRect* rect);
-    virtual void readRegion(SkRegion* region);
-    
-    virtual void readPath(SkPath* path);
-    void readPaint(SkPaint* paint) { paint->unflatten(*this); }
-
-    virtual SkFlattenable* readFlattenable(SkFlattenable::Type);
-    template <typename T> T* readFlattenable() {
-        return (T*) this->readFlattenable(T::GetFlattenableType());
-    }
-    SkColorFilter* readColorFilter() { return this->readFlattenable<SkColorFilter>(); }
-    SkDrawLooper*  readDrawLooper()  { return this->readFlattenable<SkDrawLooper>(); }
-    SkImageFilter* readImageFilter() { return this->readFlattenable<SkImageFilter>(); }
-    SkMaskFilter*  readMaskFilter()  { return this->readFlattenable<SkMaskFilter>(); }
-    SkPathEffect*  readPathEffect()  { return this->readFlattenable<SkPathEffect>(); }
-    SkRasterizer*  readRasterizer()  { return this->readFlattenable<SkRasterizer>(); }
-    SkShader*      readShader()      { return this->readFlattenable<SkShader>(); }
-    SkXfermode*    readXfermode()    { return this->readFlattenable<SkXfermode>(); }
-
-    /**
-     *  Like readFlattenable() but explicitly just skips the data that was written for the
-     *  flattenable (or the sentinel that there wasn't one).
-     */
-    virtual void skipFlattenable();
-
-    // binary data and arrays
-    virtual bool readByteArray(void* value, size_t size);
-    virtual bool readColorArray(SkColor* colors, size_t size);
-    virtual bool readIntArray(int32_t* values, size_t size);
-    virtual bool readPointArray(SkPoint* points, size_t size);
-    virtual bool readScalarArray(SkScalar* values, size_t size);
-
-    SkData* readByteArrayAsData() {
-        size_t len = this->getArrayCount();
-        if (!this->validateAvailable(len)) {
-            return SkData::NewEmpty();
-        }
-        void* buffer = sk_malloc_throw(len);
-        this->readByteArray(buffer, len);
-        return SkData::NewFromMalloc(buffer, len);
-    }
-
-    // helpers to get info about arrays and binary data
-    virtual uint32_t getArrayCount();
-
-    /**
-     *  Returns false if the bitmap could not be completely read. In that case, it will be set
-     *  to have width/height, but no pixels.
-     */
-    bool readBitmap(SkBitmap* bitmap);
-
-    virtual SkTypeface* readTypeface();
-
-    void setBitmapStorage(SkBitmapHeapReader* bitmapStorage) {
-        SkRefCnt_SafeAssign(fBitmapStorage, bitmapStorage);
-    }
-
-    void setTypefaceArray(SkTypeface* array[], int count) {
-        fTFArray = array;
-        fTFCount = count;
-    }
-
-    /**
-     *  Call this with a pre-loaded array of Factories, in the same order as
-     *  were created/written by the writer. SkPicture uses this.
-     */
-    void setFactoryPlayback(SkFlattenable::Factory array[], int count) {
-        fFactoryTDArray = NULL;
-        fFactoryArray = array;
-        fFactoryCount = count;
-    }
-
-    /**
-     *  Call this with an initially empty array, so the reader can cache each
-     *  factory it sees by name. Used by the pipe code in conjunction with
-     *  SkWriteBuffer::setNamedFactoryRecorder.
-     */
-    void setFactoryArray(SkTDArray<SkFlattenable::Factory>* array) {
-        fFactoryTDArray = array;
-        fFactoryArray = NULL;
-        fFactoryCount = 0;
-    }
-
-    /**
-     *  Provide a function to decode an SkBitmap from encoded data. Only used if the writer
-     *  encoded the SkBitmap. If the proper decoder cannot be used, a red bitmap with the
-     *  appropriate size will be used.
-     */
-    void setBitmapDecoder(SkPicture::InstallPixelRefProc bitmapDecoder) {
-        fBitmapDecoder = bitmapDecoder;
-    }
-
-    // Default impelementations don't check anything.
-    virtual bool validate(bool isValid) { return true; }
-    virtual bool isValid() const { return true; }
-    virtual bool validateAvailable(size_t size) { return true; }
-
-protected:
-    SkReader32 fReader;
-
-private:
-    bool readArray(void* value, size_t size, size_t elementSize);
-
-    uint32_t fFlags;
-    int fVersion;
-
-    void* fMemoryPtr;
-
-    SkBitmapHeapReader* fBitmapStorage;
-    SkTypeface** fTFArray;
-    int        fTFCount;
-
-    SkTDArray<SkFlattenable::Factory>* fFactoryTDArray;
-    SkFlattenable::Factory* fFactoryArray;
-    int                     fFactoryCount;
-
-    SkPicture::InstallPixelRefProc fBitmapDecoder;
-
-#ifdef DEBUG_NON_DETERMINISTIC_ASSERT
-    // Debugging counter to keep track of how many bitmaps we
-    // have decoded.
-    int fDecodedBitmapIndex;
-#endif // DEBUG_NON_DETERMINISTIC_ASSERT
-};
-
-#endif // SkReadBuffer_DEFINED