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

include/core/SkReader32.h

-
-/*
- * Copyright 2008 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef SkReader32_DEFINED
-#define SkReader32_DEFINED
-
-#include "SkMatrix.h"
-#include "SkPath.h"
-#include "SkRegion.h"
-#include "SkRRect.h"
-#include "SkScalar.h"
-
-class SkString;
-
-class SkReader32 : SkNoncopyable {
-public:
-    SkReader32() : fCurr(NULL), fStop(NULL), fBase(NULL) {}
-    SkReader32(const void* data, size_t size)  {
-        this->setMemory(data, size);
-    }
-
-    void setMemory(const void* data, size_t size) {
-        SkASSERT(ptr_align_4(data));
-        SkASSERT(SkAlign4(size) == size);
-
-        fBase = fCurr = (const char*)data;
-        fStop = (const char*)data + size;
-    }
-
-    size_t size() const { return fStop - fBase; }
-    size_t offset() const { return fCurr - fBase; }
-    bool eof() const { return fCurr >= fStop; }
-    const void* base() const { return fBase; }
-    const void* peek() const { return fCurr; }
-
-    size_t available() const { return fStop - fCurr; }
-    bool isAvailable(size_t size) const { return size <= this->available(); }
-
-    void rewind() { fCurr = fBase; }
-
-    void setOffset(size_t offset) {
-        SkASSERT(SkAlign4(offset) == offset);
-        SkASSERT(offset <= this->size());
-        fCurr = fBase + offset;
-    }
-
-    bool readBool() { return this->readInt() != 0; }
-
-    int32_t readInt() {
-        SkASSERT(ptr_align_4(fCurr));
-        int32_t value = *(const int32_t*)fCurr;
-        fCurr += sizeof(value);
-        SkASSERT(fCurr <= fStop);
-        return value;
-    }
-
-    void* readPtr() {
-        void* ptr;
-        // we presume this "if" is resolved at compile-time
-        if (4 == sizeof(void*)) {
-            ptr = *(void**)fCurr;
-        } else {
-            memcpy(&ptr, fCurr, sizeof(void*));
-        }
-        fCurr += sizeof(void*);
-        return ptr;
-    }
-
-    SkScalar readScalar() {
-        SkASSERT(ptr_align_4(fCurr));
-        SkScalar value = *(const SkScalar*)fCurr;
-        fCurr += sizeof(value);
-        SkASSERT(fCurr <= fStop);
-        return value;
-    }
-
-    const void* skip(size_t size) {
-        SkASSERT(ptr_align_4(fCurr));
-        const void* addr = fCurr;
-        fCurr += SkAlign4(size);
-        SkASSERT(fCurr <= fStop);
-        return addr;
-    }
-
-    template <typename T> const T& skipT() {
-        SkASSERT(SkAlign4(sizeof(T)) == sizeof(T));
-        return *(const T*)this->skip(sizeof(T));
-    }
-
-    void read(void* dst, size_t size) {
-        SkASSERT(0 == size || dst != NULL);
-        SkASSERT(ptr_align_4(fCurr));
-        memcpy(dst, fCurr, size);
-        fCurr += SkAlign4(size);
-        SkASSERT(fCurr <= fStop);
-    }
-
-    uint8_t readU8() { return (uint8_t)this->readInt(); }
-    uint16_t readU16() { return (uint16_t)this->readInt(); }
-    int32_t readS32() { return this->readInt(); }
-    uint32_t readU32() { return this->readInt(); }
-
-    bool readPath(SkPath* path) {
-        return this->readObjectFromMemory(path);
-    }
-
-    bool readMatrix(SkMatrix* matrix) {
-        return this->readObjectFromMemory(matrix);
-    }
-
-    bool readRRect(SkRRect* rrect) {
-        return this->readObjectFromMemory(rrect);
-    }
-
-    bool readRegion(SkRegion* rgn) {
-        return this->readObjectFromMemory(rgn);
-    }
-
-    /**
-     *  Read the length of a string (written by SkWriter32::writeString) into
-     *  len (if len is not NULL) and return the null-ternimated address of the
-     *  string within the reader's buffer.
-     */
-    const char* readString(size_t* len = NULL);
-
-    /**
-     *  Read the string (written by SkWriter32::writeString) and return it in
-     *  copy (if copy is not null). Return the length of the string.
-     */
-    size_t readIntoString(SkString* copy);
-
-private:
-    template <typename T> bool readObjectFromMemory(T* obj) {
-        size_t size = obj->readFromMemory(this->peek(), this->available());
-        // If readFromMemory() fails (which means that available() was too small), it returns 0
-        bool success = (size > 0) && (size <= this->available()) && (SkAlign4(size) == size);
-        // In case of failure, we want to skip to the end
-        (void)this->skip(success ? size : this->available());
-        return success;
-    }
-
-    // these are always 4-byte aligned
-    const char* fCurr;  // current position within buffer
-    const char* fStop;  // end of buffer
-    const char* fBase;  // beginning of buffer
-
-#ifdef SK_DEBUG
-    static bool ptr_align_4(const void* ptr) {
-        return (((const char*)ptr - (const char*)NULL) & 3) == 0;
-    }
-#endif
-};
-
-#endif