class: GdkDmabufFormats

[21:7] extends: object

Provides information about supported DMA buffer formats. You can query whether a given format is supported with [method@Gdk.DmabufFormats.contains] and you can iterate over the list of all supported formats with [method@Gdk.DmabufFormats.get_n_formats] and [method@Gdk.DmabufFormats.get_format]. The list of supported formats is sorted by preference, with the best formats coming first. The list may contains (format, modifier) pairs where the modifier is DMA_FORMAT_MOD_INVALID, indicating that implicit modifiers may be used with this format. See [class@Gdk.DmabufTextureBuilder] for more information about DMA buffers. Note that DMA buffers only exist on Linux.

Members

handleObj
lib
retainedCallbacks
signalHandlerNames
signalSetterHandlers

Methods

GdkDmabufFormats (Handle = null)

Creates a new DmabufFormats by wrapping a native handle or another wrapper.
- @p Handle is the native handle or another wrapper whose handle to adopt.
toNativeHandle (Source)

Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.
- @p Source is the raw handle, raw buffer, wrapper, or null.
- @r A raw pointer carrier or null when no pointer is present.
getLib ()

Returns the opened native library for this generated wrapper.
- @r The opened native library.
handle ()

Returns the wrapped NativeHandle.
- @r The wrapped NativeHandle.
isNull ()

Returns true when the wrapped handle is null.
- @r A bool.
describe ()

Returns a small string for debugging generated wrappers.
- @r A string.
contains (int fourcc, int modifier)

Returns whether a given format is contained in @formats.
- @p fourcc is a format code.
- @p modifier is a format modifier.
- @r TRUE if the format specified by the arguments is part of @formats.
equal (object formats2)

Returns whether @formats1 and @formats2 contain the same dmabuf formats, in the same order.
- @p formats2 is another GdkDmabufFormats.
- @r TRUE if @formats1 and @formats2 are equal.
get_format (int idx)

Gets the fourcc code and modifier for a format that is contained in
- @formats. ``
- @p idx is the index of the format to return.
- @p fourcc is return location for the format code.
- @p modifier is return location for the format modifier.
- @r None.
get_n_formats ()

Returns the number of formats that the @formats object contains. Note that DMA buffers are a Linux concept, so on other platforms, [method@Gdk.DmabufFormats.get_n_formats] will always return zero.
- @r the number of formats.
ref ()

Increases the reference count of @formats.
- @r the passed-in object.
unref ()

Decreases the reference count of @formats. When the reference count reaches zero, the object is freed.
- @r None.