private JSTypedArray(JavaScriptTypedArrayType type, uint position, uint unitCount, Action <SharedMemoryBuffer> init) : base(SharedBufferSourceEnum.CreateInJavascript, unitCount * GetUnitByteSizeByArrayType(type))
{
ArrayType = type;
Position = position;
UnitSize = GetUnitByteSizeByArrayType(type);
UnitCount = unitCount;
}
public static uint GetUnitByteSizeByArrayType(JavaScriptTypedArrayType type)
{
switch (type)
{
case JavaScriptTypedArrayType.Int8:
case JavaScriptTypedArrayType.Uint8:
case JavaScriptTypedArrayType.Uint8Clamped:
return(1);
case JavaScriptTypedArrayType.Int16:
case JavaScriptTypedArrayType.Uint16:
return(2);
case JavaScriptTypedArrayType.Int32:
case JavaScriptTypedArrayType.Uint32:
case JavaScriptTypedArrayType.Float32:
return(4);
case JavaScriptTypedArrayType.Float64:
return(8);
default:
throw new ArgumentException("not a valid TypedArrayType", nameof(ArrayType));
}
}
public static JSTypedArray CreateFromArrayBuffer(JavaScriptTypedArrayType type, JSArrayBuffer source, uint position, uint unitCount)
{
JSTypedArray result = new JSTypedArray(type, source, position, unitCount);
result.InitWindow(source.Buffer, position);
return(result);
}
internal static JSTypedArray CreateFromJS(JavaScriptTypedArrayType type, IntPtr data, uint unitCount, JavaScriptValue source, IContextSwitchService context)
{
JSTypedArray result = new JSTypedArray(type, 0, unitCount);
result.SetJSSource(source, context);
result.InitWindow(data, false);
return(result);
}
private JSTypedArray(JavaScriptTypedArrayType type, JSArrayBuffer source, uint position, uint unitCount) : base(SharedBufferSourceEnum.CreateByDotnet, unitCount * GetUnitByteSizeByArrayType(type))
{
ArrayType = type;
Position = position;
UnitSize = GetUnitByteSizeByArrayType(type);
UnitCount = unitCount;
ArrayBuffer = source;
}
public static JSTypedArray CreateInJS(JavaScriptTypedArrayType type, uint unitCount, Action <SharedMemoryBuffer> init)
{
var result = new JSTypedArray(type, 0, unitCount, init);
if (init != null)
{
result.SetupInitValueAction(init);
}
return(result);
}
internal static extern JavaScriptErrorCode JsGetTypedArrayInfo(JavaScriptValue typedArray, out JavaScriptTypedArrayType arrayType, out JavaScriptValue arrayBuffer, out uint byteOffset, out uint byteLength);
internal static extern JavaScriptErrorCode JsGetIndexedPropertiesExternalData(JavaScriptValue obj, IntPtr data, out JavaScriptTypedArrayType arrayType, out uint elementLength);
internal static extern JavaScriptErrorCode JsGetTypedArrayStorage(JavaScriptValue typedArray, out byte[] buffer, out uint bufferLength, out JavaScriptTypedArrayType arrayType, out int elementSize);
internal static extern JavaScriptErrorCode JsCreateTypedArray(JavaScriptTypedArrayType arrayType, JavaScriptValue arrayBuffer, uint byteOffset,
uint elementLength, out JavaScriptValue result);
internal static extern JsErrorCode JsSetIndexedPropertiesToExternalData(JsValue obj,
IntPtr data,
JavaScriptTypedArrayType arrayType,
uint elementLength);
internal static extern JavaScriptErrorCode JsGetTypedArrayStorage(JavaScriptValue typedArray, out byte[] buffer, out uint bufferLength, out JavaScriptTypedArrayType arrayType, out int elementSize);
public static void GetTypedArrayStorage(JavaScriptValue typedArray, out IntPtr data, out uint bufferLength, out JavaScriptTypedArrayType arrayType, out int elementSize)
{
Native.ThrowIfError(Native.JsGetTypedArrayStorage(typedArray, out IntPtr _data, out uint _bufferLength, out JavaScriptTypedArrayType _arrayType, out int _elementSize));
data = _data;
bufferLength = _bufferLength;
arrayType = _arrayType;
elementSize = _elementSize;
}
public static JavaScriptValue CreateTypedArray(JavaScriptTypedArrayType arrayType, JavaScriptValue arrayBuffer, uint byteOffset, uint elementLength)
{
Native.ThrowIfError(Native.JsCreateTypedArray(arrayType, arrayBuffer, byteOffset, elementLength, out JavaScriptValue result));
return(result);
}
internal static extern JavaScriptErrorCode JsGetTypedArrayInfo(JavaScriptValue typedArray, out JavaScriptTypedArrayType arrayType, out JavaScriptValue arrayBuffer, out uint byteOffset, out uint byteLength);
internal static extern JavaScriptErrorCode JsCreateTypedArray(JavaScriptTypedArrayType arrayType, JavaScriptValue arrayBuffer, uint byteOffset,
uint elementLength, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsGetTypedArrayStorage(JavaScriptValue typedArray, out IntPtr data, out uint bufferLength, out JavaScriptTypedArrayType arrayType, out int elementSize);
internal static extern JavaScriptErrorCode JsGetIndexedPropertiesExternalData(JavaScriptValue obj, IntPtr data, out JavaScriptTypedArrayType arrayType, out uint elementLength);
internal static extern JsErrorCode JsGetTypedArrayStorage(JsValue typedArray,
out IntPtr buffer,
out uint bufferLength,
out JavaScriptTypedArrayType arrayType,
out int elementSize);
