Constructor
GeglBufferlinear_new_from_data
Declaration [src]
GeglBuffer*
gegl_buffer_linear_new_from_data (
const gpointer data,
const Babl* format,
const GeglRectangle* extent,
gint rowstride,
GDestroyNotify destroy_fn,
gpointer destroy_fn_data
)
Description [src]
Creates a GeglBuffer backed by a linear memory buffer that already exists,
of the given extent in the specified format. babl_format (“R’G’B’A u8”)
for instance to make a normal 8bit buffer.
This method is not directly available to language bindings.
Parameters
data-
Type:
const gpointerA pointer to a linear buffer in memory.
The argument can be NULL. format-
Type:
BablThe format of the data in memory.
The data is owned by the caller of the function. extent-
Type:
GeglRectangleThe dimensions (and upper left coordinates) of linear buffer.
The data is owned by the caller of the function. rowstride-
Type:
gintThe number of bytes between rowstarts in memory (or 0 to autodetect)
destroy_fn-
Type:
GDestroyNotifyFunction to call to free data or NULL if memory should not be freed.
destroy_fn_data-
Type:
gpointerExtra argument to be passed to void destroy(ptr, data) type function.
The argument can be NULL.The data is owned by the caller of the function.
Return value
Type: GeglBuffer
A GeglBuffer that can be used as any other GeglBuffer.
| The caller of the function takes ownership of the data, and is responsible for freeing it. |