Method

GeglBufferlinear_open

Declaration [src]

gpointer
gegl_buffer_linear_open (
  GeglBuffer* buffer,
  const GeglRectangle* extent,
  gint* rowstride,
  const Babl* format
)

Description [src]

Raw direct random access to the full data of a buffer in linear memory.

This method is not directly available to language bindings.

Parameters

extent GeglRectangle
 

Region to open, pass NULL for entire buffer.

 The data is owned by the caller of the function.
rowstride gint*
 

Return location for rowstride.

 The data is owned by the caller of the function.
format Babl
 

Desired format or NULL to use buffers format.

 The data is owned by the caller of the function.

Return value

Returns: gpointer
 

A pointer to a linear memory region describing the buffer, if the request is compatible with the underlying data storage direct access to the underlying data is provided. Otherwise, it returns a copy of the data.

 The data is owned by the instance.
 The return value can be NULL.