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

Type: GeglRectangle

Region to open, pass NULL for entire buffer.

The argument can be NULL.
The data is owned by the caller of the function.
rowstride

Type: gint*

Return location for rowstride.

The argument will be set by the function.
The argument can be NULL.
format

Type: Babl

Desired format or NULL to use buffers format.

The argument can be NULL.
The data is owned by the caller of the function.

Return value

Type: 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.