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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_RS_FILE_A3D_H
#define ANDROID_RS_FILE_A3D_H
#include "rsMesh.h"
#include "rsStream.h"
#include <stdio.h>
#define A3D_MAGIC_KEY "Android3D_ff"
// ---------------------------------------------------------------------------
namespace android {
class Asset;
namespace renderscript {
class FileA3D : public ObjectBase {
public:
FileA3D(Context *rsc);
~FileA3D();
uint32_t mMajorVersion;
uint32_t mMinorVersion;
uint64_t mIndexOffset;
uint64_t mStringTableOffset;
bool mUse64BitOffsets;
class A3DIndexEntry {
const char *mObjectName;
RsA3DClassID mType;
uint64_t mOffset;
uint64_t mLength;
ObjectBase *mRsObj;
public:
friend class FileA3D;
const char *getObjectName() const {
return mObjectName;
}
RsA3DClassID getType() const {
return mType;
}
~A3DIndexEntry();
};
bool load(FILE *f);
bool load(Asset *asset);
bool load(const void *data, size_t length);
size_t getNumIndexEntries() const;
const A3DIndexEntry* getIndexEntry(size_t index) const;
ObjectBase *initializeFromEntry(size_t index);
void appendToFile(Context *rsc, ObjectBase *obj);
bool writeFile(const char *filename);
// Currently files do not get serialized,
// but we need to inherit from ObjectBase for ref tracking
virtual void serialize(Context *rsc, OStream *stream) const {
}
virtual RsA3DClassID getClassId() const {
return RS_A3D_CLASS_ID_UNKNOWN;
}
protected:
void parseHeader(IStream *headerStream);
const uint8_t * mData;
void * mAlloc;
uint64_t mDataSize;
Asset *mAsset;
OStream *mWriteStream;
Vector<A3DIndexEntry*> mWriteIndex;
IStream *mReadStream;
Vector<A3DIndexEntry*> mIndex;
};
}
}
#endif //ANDROID_RS_FILE_A3D_H
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