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// Take a look at the license at the top of the repository in the LICENSE file.
use crate::{GLContext, GLTexture};
use glib::translate::*;
impl GLTexture {
/// Creates a new texture for an existing GL texture.
///
/// Note that the GL texture must not be modified until @destroy is called,
/// which will happen when the GdkTexture object is finalized, or due to
/// an explicit call of [`release()`][Self::release()].
/// ## `context`
/// a [`GLContext`][crate::GLContext]
/// ## `id`
/// the ID of a texture that was created with @context
/// ## `width`
/// the nominal width of the texture
/// ## `height`
/// the nominal height of the texture
///
/// # Returns
///
/// A newly-created
/// [`Texture`][crate::Texture]
#[doc(alias = "gdk_gl_texture_new")]
pub unsafe fn new(context: &GLContext, id: u32, width: i32, height: i32) -> Self {
from_glib_full(ffi::gdk_gl_texture_new(
context.to_glib_none().0,
id,
width,
height,
None,
std::ptr::null_mut(),
))
}
#[doc(alias = "gdk_gl_texture_new")]
pub unsafe fn with_release_func<F: FnOnce() + 'static>(
context: &GLContext,
id: u32,
width: i32,
height: i32,
release_func: F,
) -> Self {
unsafe extern "C" fn destroy_closure<F: FnOnce() + 'static>(func: glib::ffi::gpointer) {
let released_func = Box::<F>::from_raw(func as *mut _);
released_func();
}
let released_func = Box::new(release_func);
from_glib_full(ffi::gdk_gl_texture_new(
context.to_glib_none().0,
id,
width,
height,
Some(destroy_closure::<F>),
Box::into_raw(released_func) as glib::ffi::gpointer,
))
}
}