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#ifndef TYPEDARRAY_H_99815BLY
#define TYPEDARRAY_H_99815BLY
#include <string>
#include <vector>
#include <boost/shared_ptr.hpp>
namespace uscxml {
class ArrayBuffer {
public:
class Buffer {
public:
~Buffer();
Buffer(size_t size);
Buffer(void* data, size_t size);
char* _data;
size_t _size;
};
ArrayBuffer(unsigned long length);
ArrayBuffer(boost::shared_ptr<ArrayBuffer::Buffer>);
unsigned long getByteLength();
ArrayBuffer slice(long begin, long length);
ArrayBuffer slice(long begin);
static bool isView(void*);
unsigned long getLength() {
return getByteLength();
}
operator bool();
bool operator== (const ArrayBuffer& other) {
return other._buffer == _buffer;
}
unsigned char get(unsigned long index) {
if (index >= getLength())
return 0;
unsigned char retVal;
memcpy(&retVal, _buffer->_data + index * sizeof(unsigned char), sizeof(unsigned char));
return retVal;
}
void set(unsigned long index, unsigned char value) {
memcpy(_buffer->_data + index * sizeof(unsigned char), &value, sizeof(unsigned char));
}
boost::shared_ptr<Buffer> _buffer;
};
class ArrayBufferView {
public:
ArrayBuffer getBuffer();
virtual unsigned long getByteOffset() = 0;
virtual unsigned long getByteLength() = 0;
virtual unsigned long getLength() = 0;
protected:
boost::shared_ptr<ArrayBuffer::Buffer> _buffer;
unsigned long _start;
unsigned long _end;
};
class DataView : ArrayBufferView {
public:
DataView(ArrayBuffer*, unsigned long, unsigned long);
DataView(ArrayBuffer*, unsigned long);
DataView(ArrayBuffer*);
unsigned long getByteOffset();
unsigned long getByteLength();
unsigned long getLength();
char getInt8(unsigned long);
unsigned char getUint8(unsigned long);
short getInt16(unsigned long, bool = false);
unsigned short getUint16(unsigned long, bool = false);
long getInt32(unsigned long, bool = false);
unsigned long getUint32(unsigned long, bool = false);
float getFloat32(unsigned long, bool = false);
double getFloat64(unsigned long, bool = false);
void setInt8(long, char);
void setUint8(long, unsigned char);
void setInt16(long, short, bool = false);
void setUint16(long, unsigned short, bool = false);
void setInt32(long, long, bool = false);
void setUint32(long, unsigned long, bool = false);
void setFloat32(long, float, bool = false);
void setFloat64(long, double, bool = false);
};
template<class T, class S> class TypedArray : public ArrayBufferView {
public:
virtual ~TypedArray() {}
TypedArray(uscxml::ArrayBuffer* buffer, unsigned long start, unsigned long length) {
_start = start;
_end = start + length;
_buffer = buffer->_buffer;
}
TypedArray(uscxml::ArrayBuffer* buffer, unsigned long start) {
_start = start / sizeof(S);
_end = buffer->_buffer->_size / sizeof(S);
_buffer = buffer->_buffer;
}
TypedArray(uscxml::ArrayBuffer* buffer) {
_start = 0;
_end = (buffer->_buffer->_size) / sizeof(S);
_buffer = buffer->_buffer;
}
TypedArray(boost::shared_ptr<ArrayBuffer::Buffer> buffer, unsigned long start, unsigned long length) {
_start = start;
_end = start + length;
_buffer = buffer;
}
TypedArray(unsigned long length) {
_start = 0;
_end = length;
_buffer = boost::shared_ptr<ArrayBuffer::Buffer>(new ArrayBuffer::Buffer(length * sizeof(S)));
}
TypedArray(std::vector<T> data) {
_start = 0;
_end = data.size();
if (sizeof(T) == sizeof(S)) {
_buffer = boost::shared_ptr<ArrayBuffer::Buffer>(new ArrayBuffer::Buffer(((void*)&data[0]), data.size() * sizeof(T)));
} else {
S* buffer = (S*)malloc(data.size() * sizeof(S));
typename std::vector<T>::const_iterator dataIter = data.begin();
unsigned long i = 0;
while(dataIter != data.end()) {
buffer[i] = *dataIter;
dataIter++;
i++;
}
_buffer = boost::shared_ptr<ArrayBuffer::Buffer>(new ArrayBuffer::Buffer(buffer, data.size() * sizeof(S)));
}
}
TypedArray(TypedArray* other) {
_start = other->_start;
_end = other->_end;
_buffer = other->_buffer;
}
T get(unsigned long index) {
if (index >= getLength())
return static_cast<T>(0);
S retVal;
memcpy(&retVal, _buffer->_data + (_start + index) * sizeof(S), sizeof(S));
return retVal;
}
void set(unsigned long index, T value) {
memcpy(_buffer->_data + (_start + index) * sizeof(S), &value, sizeof(S));
}
void set(TypedArray<T, S>* value, unsigned long offset) {
memcpy(_buffer->_data + (_start) * sizeof(S), &value->_buffer->_data[offset], value->_buffer->_size);
}
void set(TypedArray<T, S>* value) {
set(value, 0);
}
void set(std::vector<T> data, unsigned long offset) {
}
void set(std::vector<T> data) {
set(data, 0);
}
TypedArray* subarray(long start, long end) {
return new TypedArray<T, S>(_buffer, start, end);
}
unsigned long getLength() {
return _end - _start;
}
unsigned long getByteLength() {
return (_end - _start) * sizeof(S);
}
unsigned long getByteOffset() {
return _start * sizeof(S);
}
};
typedef TypedArray<unsigned char, uint8_t> Uint8Array;
typedef TypedArray<unsigned char, uint8_t> Uint8ClampedArray;
typedef TypedArray<char, int8_t> Int8Array;
typedef TypedArray<short, int16_t> Int16Array;
typedef TypedArray<unsigned short, uint16_t> Uint16Array;
typedef TypedArray<long, int32_t> Int32Array;
typedef TypedArray<unsigned long, uint32_t> Uint32Array;
typedef TypedArray<float, float> Float32Array;
typedef TypedArray<double, double> Float64Array;
}
#endif /* end of include guard: TYPEDARRAY_H_99815BLY */
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