Constructor
CoglTexture2Dnew_from_file
Declaration [src]
CoglTexture2D*
cogl_texture_2d_new_from_file (
CoglContext* ctx,
const char* filename,
GError** error
)
Description [src]
Creates a low-level CoglTexture2D
texture from an image file.
The storage for the texture is not allocated before this function
returns. You can call cogl_texture_allocate()
to explicitly
allocate the underlying storage or preferably let Cogl
automatically allocate storage lazily when it may know more about
how the texture is being used and can optimize how it is allocated.
The texture is still configurable until it has been allocated so
for example you can influence the internal format of the texture
using cogl_texture_set_components()
and cogl_texture_set_premultiplied().
This method is not directly available to language bindings.
Parameters
ctx
-
Type:
CoglContext
A
CoglContext
.The data is owned by the caller of the function. filename
-
Type:
const char*
The file to load.
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string. error
-
Type:
GError **
The return location for a recoverable error.
The argument can be NULL
.If the return location is not NULL
, then you must initialize it to aNULL
GError*
.The argument will be left initialized to NULL
by the constructor if there are no errors.In case of error, the argument will be set to a newly allocated GError
; the caller will take ownership of the data, and be responsible for freeing it.
Return value
Type: CoglTexture2D
A newly created CoglTexture2D
or NULL
on failure
and error
will be updated.
The caller of the function takes ownership of the data, and is responsible for freeing it. |