Refactor read and write buffers.

src/core/SkFlattenableBuffers.cpp

-
-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include "SkFlattenableBuffers.h"
-#include "SkPaint.h"
-#include "SkTypeface.h"
-
-#include "SkColorFilter.h"
-#include "SkDrawLooper.h"
-#include "SkImageFilter.h"
-#include "SkMaskFilter.h"
-#include "SkPathEffect.h"
-#include "SkPixelRef.h"
-#include "SkRasterizer.h"
-#include "SkShader.h"
-#include "SkUnitMapper.h"
-#include "SkXfermode.h"
-
-SkFlattenableReadBuffer::SkFlattenableReadBuffer() {
-    // Set default values. These should be explicitly set by our client
-    // via setFlags() if the buffer came from serialization.
-    fFlags = 0;
-    // TODO: remove this flag, since we're always floats (now)
-    fFlags |= kScalarIsFloat_Flag;
-    if (8 == sizeof(void*)) {
-        fFlags |= kPtrIs64Bit_Flag;
-    }
-}
-
-SkFlattenableReadBuffer::~SkFlattenableReadBuffer() { }
-
-void* SkFlattenableReadBuffer::readFunctionPtr() {
-    void* proc;
-    SkASSERT(sizeof(void*) == this->getArrayCount());
-    this->readByteArray(&proc, sizeof(void*));
-    return proc;
-}
-
-void SkFlattenableReadBuffer::readPaint(SkPaint* paint) {
-    paint->unflatten(*this);
-}
-
-template <typename T> T* SkFlattenableReadBuffer::readFlattenableT() {
-    return static_cast<T*>(this->readFlattenable(T::GetFlattenableType()));
-}
-
-SkColorFilter* SkFlattenableReadBuffer::readColorFilter() {
-    return this->readFlattenableT<SkColorFilter>();
-}
-
-SkDrawLooper* SkFlattenableReadBuffer::readDrawLooper() {
-    return this->readFlattenableT<SkDrawLooper>();
-}
-
-SkImageFilter* SkFlattenableReadBuffer::readImageFilter() {
-    return this->readFlattenableT<SkImageFilter>();
-}
-
-SkMaskFilter* SkFlattenableReadBuffer::readMaskFilter() {
-    return this->readFlattenableT<SkMaskFilter>();
-}
-
-SkPathEffect* SkFlattenableReadBuffer::readPathEffect() {
-    return this->readFlattenableT<SkPathEffect>();
-}
-
-SkPixelRef* SkFlattenableReadBuffer::readPixelRef() {
-    return this->readFlattenableT<SkPixelRef>();
-}
-
-SkRasterizer* SkFlattenableReadBuffer::readRasterizer() {
-    return this->readFlattenableT<SkRasterizer>();
-}
-
-SkShader* SkFlattenableReadBuffer::readShader() {
-    return this->readFlattenableT<SkShader>();
-}
-
-SkUnitMapper* SkFlattenableReadBuffer::readUnitMapper() {
-    return this->readFlattenableT<SkUnitMapper>();
-}
-
-SkXfermode* SkFlattenableReadBuffer::readXfermode() {
-    return this->readFlattenableT<SkXfermode>();
-}
-
-bool SkFlattenableReadBuffer::validate(bool isValid) {
-    return true;
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-SkFlattenableWriteBuffer::SkFlattenableWriteBuffer() {
-    fFlags = (Flags)0;
-}
-
-SkFlattenableWriteBuffer::~SkFlattenableWriteBuffer() { }
-
-void SkFlattenableWriteBuffer::writeFunctionPtr(void* ptr) {
-    void* ptrStorage[] = { ptr };
-    this->writeByteArray(ptrStorage, sizeof(void*));
-}
-
-void SkFlattenableWriteBuffer::writePaint(const SkPaint& paint) {
-    paint.flatten(*this);
-}
-
-void SkFlattenableWriteBuffer::flattenObject(const SkFlattenable* obj,
-                                             SkFlattenableWriteBuffer& buffer) {
-    obj->flatten(buffer);
-}