/*
* 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.
*/
#include "rsContext.h"
#include "rsFileA3D.h"
#include "rsMesh.h"
#include "rsAnimation.h"
#include "rs.h"
#if !defined(__RS_PDK__)
#include <androidfw/Asset.h>
#endif
#include <inttypes.h>
using namespace android;
using namespace android::renderscript;
FileA3D::FileA3D(Context *rsc) : ObjectBase(rsc) {
mAlloc = nullptr;
mData = nullptr;
mWriteStream = nullptr;
mReadStream = nullptr;
mAsset = nullptr;
mMajorVersion = 0;
mMinorVersion = 1;
mDataSize = 0;
}
FileA3D::~FileA3D() {
for (size_t i = 0; i < mIndex.size(); i ++) {
delete mIndex[i];
}
for (size_t i = 0; i < mWriteIndex.size(); i ++) {
delete mWriteIndex[i];
}
if (mWriteStream) {
delete mWriteStream;
}
if (mReadStream) {
delete mReadStream;
}
if (mAlloc) {
free(mAlloc);
}
if (mAsset) {
#if !defined(__RS_PDK__)
delete mAsset;
#endif
}
}
void FileA3D::parseHeader(IStream *headerStream) {
mMajorVersion = headerStream->loadU32();
mMinorVersion = headerStream->loadU32();
uint32_t flags = headerStream->loadU32();
mUse64BitOffsets = (flags & 1) != 0;
uint32_t numIndexEntries = headerStream->loadU32();
for (uint32_t i = 0; i < numIndexEntries; i ++) {
A3DIndexEntry *entry = new A3DIndexEntry();
entry->mObjectName = headerStream->loadString();
//ALOGV("Header data, entry name = %s", entry->mObjectName.string());
entry->mType = (RsA3DClassID)headerStream->loadU32();
if (mUse64BitOffsets){
entry->mOffset = headerStream->loadOffset();
entry->mLength = headerStream->loadOffset();
} else {
entry->mOffset = headerStream->loadU32();
entry->mLength = headerStream->loadU32();
}
entry->mRsObj = nullptr;
mIndex.push(entry);
}
}
bool FileA3D::load(Asset *asset) {
#if !defined(__RS_PDK__)
mAsset = asset;
return load(asset->getBuffer(false), asset->getLength());
#else
return false;
#endif
}
bool FileA3D::load(const void *data, size_t length) {
const uint8_t *localData = (const uint8_t *)data;
size_t lengthRemaining = length;
size_t magicStrLen = 12;
if ((length < magicStrLen) ||
memcmp(data, "Android3D_ff", magicStrLen)) {
return false;
}
localData += magicStrLen;
lengthRemaining -= magicStrLen;
// Next we get our header size
uint64_t headerSize = 0;
if (lengthRemaining < sizeof(headerSize)) {
return false;
}
memcpy(&headerSize, localData, sizeof(headerSize));
localData += sizeof(headerSize);
lengthRemaining -= sizeof(headerSize);
if (lengthRemaining < headerSize) {
return false;
}
// Now open the stream to parse the header
IStream headerStream(localData, false);
parseHeader(&headerStream);
localData += headerSize;
lengthRemaining -= headerSize;
if (lengthRemaining < sizeof(mDataSize)) {
return false;
}
// Read the size of the data
memcpy(&mDataSize, localData, sizeof(mDataSize));
localData += sizeof(mDataSize);
lengthRemaining -= sizeof(mDataSize);
if (lengthRemaining < mDataSize) {
return false;
}
// We should know enough to read the file in at this point.
mData = (uint8_t *)localData;
mReadStream = new IStream(mData, mUse64BitOffsets);
return true;
}
bool FileA3D::load(FILE *f) {
char magicString[12];
size_t len;
ALOGV("file open 1");
len = fread(magicString, 1, 12, f);
if ((len != 12) ||
memcmp(magicString, "Android3D_ff", 12)) {
return false;
}
// Next thing is the size of the header
uint64_t headerSize = 0;
len = fread(&headerSize, 1, sizeof(headerSize), f);
if (len != sizeof(headerSize) || headerSize == 0) {
return false;
}
uint8_t *headerData = (uint8_t *)malloc(headerSize);
if (!headerData) {
return false;
}
len = fread(headerData, 1, headerSize, f);
if (len != headerSize) {
return false;
}
// Now open the stream to parse the header
IStream headerStream(headerData, false);
parseHeader(&headerStream);
free(headerData);
// Next thing is the size of the header
len = fread(&mDataSize, 1, sizeof(mDataSize), f);
if (len != sizeof(mDataSize) || mDataSize == 0) {
return false;
}
ALOGV("file open size = %" PRIi64, mDataSize);
// We should know enough to read the file in at this point.
mAlloc = malloc(mDataSize);
if (!mAlloc) {
return false;
}
mData = (uint8_t *)mAlloc;
len = fread(mAlloc, 1, mDataSize, f);
if (len != mDataSize) {
return false;
}
mReadStream = new IStream(mData, mUse64BitOffsets);
ALOGV("Header is read an stream initialized");
return true;
}
size_t FileA3D::getNumIndexEntries() const {
return mIndex.size();
}
FileA3D::A3DIndexEntry::~A3DIndexEntry() {
delete[] mObjectName;
}
const FileA3D::A3DIndexEntry *FileA3D::getIndexEntry(size_t index) const {
if (index < mIndex.size()) {
return mIndex[index];
}
return nullptr;
}
ObjectBase *FileA3D::initializeFromEntry(size_t index) {
if (index >= mIndex.size()) {
return nullptr;
}
FileA3D::A3DIndexEntry *entry = mIndex[index];
if (!entry) {
return nullptr;
}
if (entry->mRsObj) {
entry->mRsObj->incUserRef();
return entry->mRsObj;
}
// Seek to the beginning of object
mReadStream->reset(entry->mOffset);
switch (entry->mType) {
case RS_A3D_CLASS_ID_UNKNOWN:
return nullptr;
case RS_A3D_CLASS_ID_MESH:
entry->mRsObj = Mesh::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_TYPE:
entry->mRsObj = Type::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_ELEMENT:
entry->mRsObj = Element::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_ALLOCATION:
entry->mRsObj = Allocation::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_PROGRAM_VERTEX:
//entry->mRsObj = ProgramVertex::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_PROGRAM_RASTER:
//entry->mRsObj = ProgramRaster::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_PROGRAM_FRAGMENT:
//entry->mRsObj = ProgramFragment::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_PROGRAM_STORE:
//entry->mRsObj = ProgramStore::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_SAMPLER:
//entry->mRsObj = Sampler::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_ANIMATION:
//entry->mRsObj = Animation::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_ADAPTER_1D:
//entry->mRsObj = Adapter1D::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_ADAPTER_2D:
//entry->mRsObj = Adapter2D::createFromStream(mRSC, mReadStream);
break;
case RS_A3D_CLASS_ID_SCRIPT_C:
break;
case RS_A3D_CLASS_ID_SCRIPT_KERNEL_ID:
break;
case RS_A3D_CLASS_ID_SCRIPT_INVOKE_ID:
break;
case RS_A3D_CLASS_ID_SCRIPT_FIELD_ID:
break;
case RS_A3D_CLASS_ID_SCRIPT_METHOD_ID:
break;
case RS_A3D_CLASS_ID_SCRIPT_GROUP:
break;
case RS_A3D_CLASS_ID_CLOSURE:
break;
case RS_A3D_CLASS_ID_SCRIPT_GROUP2:
break;
}
if (entry->mRsObj) {
entry->mRsObj->incUserRef();
}
return entry->mRsObj;
}
bool FileA3D::writeFile(const char *filename) {
if (!mWriteStream) {
ALOGE("No objects to write\n");
return false;
}
if (mWriteStream->getPos() == 0) {
ALOGE("No objects to write\n");
return false;
}
FILE *writeHandle = fopen(filename, "wb");
if (!writeHandle) {
ALOGE("Couldn't open the file for writing\n");
return false;
}
// Open a new stream to make writing the header easier
OStream headerStream(5*1024, false);
headerStream.addU32(mMajorVersion);
headerStream.addU32(mMinorVersion);
uint32_t is64Bit = 0;
headerStream.addU32(is64Bit);
uint32_t writeIndexSize = mWriteIndex.size();
headerStream.addU32(writeIndexSize);
for (uint32_t i = 0; i < writeIndexSize; i ++) {
headerStream.addString(mWriteIndex[i]->mObjectName);
headerStream.addU32((uint32_t)mWriteIndex[i]->mType);
if (mUse64BitOffsets){
headerStream.addOffset(mWriteIndex[i]->mOffset);
headerStream.addOffset(mWriteIndex[i]->mLength);
} else {
uint32_t offset = (uint32_t)mWriteIndex[i]->mOffset;
headerStream.addU32(offset);
offset = (uint32_t)mWriteIndex[i]->mLength;
headerStream.addU32(offset);
}
}
// Write our magic string so we know we are reading the right file
fwrite(A3D_MAGIC_KEY, sizeof(char), strlen(A3D_MAGIC_KEY), writeHandle);
// Store the size of the header to make it easier to parse when we read it
uint64_t headerSize = headerStream.getPos();
fwrite(&headerSize, sizeof(headerSize), 1, writeHandle);
// Now write our header
fwrite(headerStream.getPtr(), sizeof(uint8_t), headerStream.getPos(), writeHandle);
// Now write the size of the data part of the file for easier parsing later
uint64_t fileDataSize = mWriteStream->getPos();
fwrite(&fileDataSize, sizeof(fileDataSize), 1, writeHandle);
fwrite(mWriteStream->getPtr(), sizeof(uint8_t), mWriteStream->getPos(), writeHandle);
int status = fclose(writeHandle);
if (status != 0) {
ALOGE("Couldn't close file\n");
return false;
}
return true;
}
void FileA3D::appendToFile(Context *con, ObjectBase *obj) {
if (!obj) {
return;
}
if (!mWriteStream) {
const uint64_t initialStreamSize = 256*1024;
mWriteStream = new OStream(initialStreamSize, false);
}
A3DIndexEntry *indexEntry = new A3DIndexEntry();
indexEntry->mObjectName = rsuCopyString(obj->getName());
indexEntry->mType = obj->getClassId();
indexEntry->mOffset = mWriteStream->getPos();
indexEntry->mRsObj = obj;
mWriteIndex.push(indexEntry);
obj->serialize(con, mWriteStream);
indexEntry->mLength = mWriteStream->getPos() - indexEntry->mOffset;
mWriteStream->align(4);
}