static int Deserializer_Read(duk_context* ctx)
{
duk_int_t magic = duk_get_current_magic(ctx);
duk_push_this(ctx);
// safe cast based on type check above
Deserializer* deserial = CastToDeserializer(ctx, duk_get_top_index(ctx));
duk_pop(ctx);
if (!deserial)
{
duk_push_boolean(ctx, 0);
return 1;
}
char* data;
String str;
size_t length;
IO_MAGIC_TYPE v = (IO_MAGIC_TYPE) magic;
bool success = false;
switch(v)
{
case IO_MAGIC_INT:
duk_push_number(ctx, (double) deserial->ReadInt());
return 1;
case IO_MAGIC_STRING:
length = deserial->GetSize() - deserial->GetPosition();
str.Resize(length + 1);
deserial->Read(&str[0], length);
str[length] = '\0';
duk_push_string(ctx, str.CString());
return 1;
case IO_MAGIC_ZEROSTRING:
success = duk_push_string(ctx, deserial->ReadString().CString());
return 1;
case IO_MAGIC_BINARY:
length = deserial->GetSize() - deserial->GetPosition();
duk_push_fixed_buffer(ctx, length);
duk_push_buffer_object(ctx, -1, 0, length, DUK_BUFOBJ_UINT8ARRAY);
duk_replace(ctx, -2);
data = (char*) duk_require_buffer_data(ctx, 0, &length);
success = deserial->Read(data, length);
return 1;
default:
break;
}
duk_push_undefined(ctx);
return 1;
}
bool CompressStream(Serializer& dest, Deserializer& src)
{
unsigned srcSize = src.GetSize() - src.GetPosition();
// Prepend the source and dest. data size in the stream so that we know to buffer & uncompress the right amount
if (!srcSize)
{
dest.WriteUInt(0);
dest.WriteUInt(0);
return true;
}
unsigned maxDestSize = LZ4_compressBound(srcSize);
SharedArrayPtr<unsigned char> srcBuffer(new unsigned char[srcSize]);
SharedArrayPtr<unsigned char> destBuffer(new unsigned char[maxDestSize]);
if (src.Read(srcBuffer, srcSize) != srcSize)
return false;
unsigned destSize = LZ4_compressHC((const char*)srcBuffer.Get(), (char*)destBuffer.Get(), srcSize);
bool success = true;
success &= dest.WriteUInt(srcSize);
success &= dest.WriteUInt(destSize);
success &= dest.Write(destBuffer, destSize) == destSize;
return success;
}
bool UnknownComponent::Load(Deserializer& source, bool setInstanceDefault)
{
useXML_ = false;
xmlAttributes_.Clear();
xmlAttributeInfos_.Clear();
// Assume we are reading from a component data buffer, and the type has already been read
unsigned dataSize = source.GetSize() - source.GetPosition();
binaryAttributes_.Resize(dataSize);
return dataSize ? source.Read(&binaryAttributes_[0], dataSize) == dataSize : true;
}
static int Deserializer_Read(duk_context* ctx)
{
duk_int_t magic = duk_get_current_magic(ctx);
duk_push_this(ctx);
// safe cast based on type check above
Deserializer* deserial = CastToDeserializer(ctx, duk_get_top_index(ctx));
duk_pop(ctx);
if (!deserial)
{
duk_push_boolean(ctx, 0);
return 1;
}
PODVector<unsigned char> buffer;
String str;
size_t length;
IO_MAGIC_TYPE v = (IO_MAGIC_TYPE) magic;
bool success = false;
switch(v)
{
case IO_MAGIC_INT:
duk_push_number(ctx, (double) deserial->ReadInt());
return 1;
case IO_MAGIC_STRING:
length = deserial->GetSize() - deserial->GetPosition();
str.Resize(length + 1);
deserial->Read(&str[0], length);
str[length] = '\0';
duk_push_string(ctx, str.CString());
return 1;
case IO_MAGIC_ZEROSTRING:
success = duk_push_string(ctx, deserial->ReadString().CString());
return 1;
default:
break;
}
duk_push_undefined(ctx);
return 1;
}
bool ScriptFile::BeginLoad(Deserializer& source)
{
ReleaseModule();
loadByteCode_.Reset();
asIScriptEngine* engine = script_->GetScriptEngine();
{
MutexLock lock(script_->GetModuleMutex());
// Create the module. Discard previous module if there was one
scriptModule_ = engine->GetModule(GetName().CString(), asGM_ALWAYS_CREATE);
if (!scriptModule_)
{
LOGERROR("Failed to create script module " + GetName());
return false;
}
}
// Check if this file is precompiled bytecode
if (source.ReadFileID() == "ASBC")
{
// Perform actual parsing in EndLoad(); read data now
loadByteCodeSize_ = source.GetSize() - source.GetPosition();
loadByteCode_ = new unsigned char[loadByteCodeSize_];
source.Read(loadByteCode_.Get(), loadByteCodeSize_);
return true;
}
else
source.Seek(0);
// Not bytecode: add the initial section and check for includes.
// Perform actual building during EndLoad(), as AngelScript can not multithread module compilation,
// and static initializers may access arbitrary engine functionality which may not be thread-safe
return AddScriptSection(engine, source);
}
bool Sound::LoadWav(Deserializer& source)
{
WavHeader header;
// Try to open
memset(&header, 0, sizeof header);
source.Read(&header.riffText_, 4);
header.totalLength_ = source.ReadUInt();
source.Read(&header.waveText_, 4);
if (memcmp("RIFF", header.riffText_, 4) || memcmp("WAVE", header.waveText_, 4))
{
LOGERROR("Could not read WAV data from " + source.GetName());
return false;
}
// Search for the FORMAT chunk
for (;;)
{
source.Read(&header.formatText_, 4);
header.formatLength_ = source.ReadUInt();
if (!memcmp("fmt ", &header.formatText_, 4))
break;
source.Seek(source.GetPosition() + header.formatLength_);
if (!header.formatLength_ || source.GetPosition() >= source.GetSize())
{
LOGERROR("Could not read WAV data from " + source.GetName());
return false;
}
}
// Read the FORMAT chunk
header.format_ = source.ReadUShort();
header.channels_ = source.ReadUShort();
header.frequency_ = source.ReadUInt();
header.avgBytes_ = source.ReadUInt();
header.blockAlign_ = source.ReadUShort();
header.bits_ = source.ReadUShort();
// Skip data if the format chunk was bigger than what we use
source.Seek(source.GetPosition() + header.formatLength_ - 16);
// Check for correct format
if (header.format_ != 1)
{
LOGERROR("Could not read WAV data from " + source.GetName());
return false;
}
// Search for the DATA chunk
for (;;)
{
source.Read(&header.dataText_, 4);
header.dataLength_ = source.ReadUInt();
if (!memcmp("data", &header.dataText_, 4))
break;
source.Seek(source.GetPosition() + header.dataLength_);
if (!header.dataLength_ || source.GetPosition() >= source.GetSize())
{
LOGERROR("Could not read WAV data from " + source.GetName());
return false;
}
}
// Allocate sound and load audio data
unsigned length = header.dataLength_;
SetSize(length);
SetFormat(header.frequency_, header.bits_ == 16, header.channels_ == 2);
source.Read(data_.Get(), length);
// Convert 8-bit audio to signed
if (!sixteenBit_)
{
for (unsigned i = 0; i < length; ++i)
data_[i] -= 128;
}
return true;
}
