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 constructor is not directly available to language bindings |
Parameters
data |
const gpointer |
A pointer to a linear buffer in memory. |
|
The argument can be NULL . | |
format |
Babl |
The format of the data in memory. |
|
The data is owned by the caller of the function. | |
extent |
GeglRectangle |
The dimensions (and upper left coordinates) of linear buffer. |
|
The data is owned by the caller of the function. | |
rowstride |
gint |
The number of bytes between rowstarts in memory (or 0 to autodetect) |
|
destroy_fn |
GDestroyNotify |
Function to call to free data or NULL if memory should not be freed. |
|
destroy_fn_data |
gpointer |
Extra 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
Returns: | 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. |