Naev

Module data

Lua bindings to interact with datas.

Functions

__gc (data) Frees a data.
__eq (d1, d2) Compares two datas to see if they are the same.
new (size, type) Opens a new data.
get (data, pos) Gets the value of an element.
set (data, pos, value) Sets the value of an element.
getSize (data) Gets the number of elements.
getString (data) Returns the data contents as a string.
paste (dest, source, dx, sx, sw) Writes the contents of "source" into "dest".
addWeighted (A, B, alpha, beta, bias) Returns alpha*A + beta*B + bias
convolve2d (I, iw, ih, K, kw, kh) Does a convolution.


Functions

__gc (data)
Frees a data.

Parameters:

  • data Data Data to free.
__eq (d1, d2)
Compares two datas to see if they are the same.

Parameters:

  • d1 Data Data 1 to compare.
  • d2 Data Data 2 to compare.

Returns:

    boolean true if both datas are the same.
new (size, type)
Opens a new data.

Parameters:

  • size number Size to allocate for data.
  • type string Type of the data to create ("number")

Returns:

    Data New data object.
get (data, pos)
Gets the value of an element.

Parameters:

  • data Data Data to index.
  • pos number Element position.

Returns:

    number The entry.
set (data, pos, value)
Sets the value of an element.

Parameters:

  • data Data Data to index.
  • pos number Element position.
  • value number Value to set it to.
getSize (data)
Gets the number of elements.

Parameters:

  • data Data ...

Returns:

    number Data size.
getString (data)
Returns the data contents as a string.

Parameters:

  • data Data ...

Returns:

    string The bytes inside.
paste (dest, source, dx, sx, sw)
Writes the contents of "source" into "dest".

Parameters:

  • dest Data Destination.
  • source Data Source.
  • dx number Offset from start of destination.
  • sx number Offset from start of source.
  • sw number Number of data elements to copy.
addWeighted (A, B, alpha, beta, bias)
Returns alpha*A + beta*B + bias

Parameters:

  • A Data as above.
  • B Data as above.
  • alpha number as above.
  • beta number as above.
  • bias number as above.

Returns:

    Data alpha*A + beta*B + bias.
convolve2d (I, iw, ih, K, kw, kh)
Does a convolution. You'd rather be writing shaders, right?

Parameters:

  • I Data left-hand side of the convolution operator.
  • iw number width of I.
  • ih number height of I.
  • K Data right-hand side of the convolution operator.
  • kw number width of K.
  • kh number height of K.

Returns:

    (I*K, width, height)
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