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use crate::GLBaseFilter;
use crate::GLMemory;
use crate::GLShader;
use glib::object::IsA;
use glib::translate::*;
glib::wrapper! {
#[doc(alias = "GstGLFilter")]
pub struct GLFilter(Object<ffi::GstGLFilter, ffi::GstGLFilterClass>) @extends GLBaseFilter, gst_base::BaseTransform, gst::Element, gst::Object;
match fn {
type_ => || ffi::gst_gl_filter_get_type(),
}
}
impl GLFilter {
pub const NONE: Option<&'static GLFilter> = None;
}
unsafe impl Send for GLFilter {}
unsafe impl Sync for GLFilter {}
pub trait GLFilterExt: 'static {
#[doc(alias = "gst_gl_filter_draw_fullscreen_quad")]
fn draw_fullscreen_quad(&self);
#[doc(alias = "gst_gl_filter_filter_texture")]
fn filter_texture(
&self,
input: &gst::Buffer,
output: &gst::Buffer,
) -> Result<(), glib::error::BoolError>;
#[doc(alias = "gst_gl_filter_render_to_target")]
fn render_to_target<P: FnMut(&GLFilter, &GLMemory) -> bool>(
&self,
input: &GLMemory,
output: &GLMemory,
func: P,
) -> Result<(), glib::error::BoolError>;
#[doc(alias = "gst_gl_filter_render_to_target_with_shader")]
fn render_to_target_with_shader(&self, input: &GLMemory, output: &GLMemory, shader: &GLShader);
}
impl<O: IsA<GLFilter>> GLFilterExt for O {
fn draw_fullscreen_quad(&self) {
unsafe {
ffi::gst_gl_filter_draw_fullscreen_quad(self.as_ref().to_glib_none().0);
}
}
fn filter_texture(
&self,
input: &gst::Buffer,
output: &gst::Buffer,
) -> Result<(), glib::error::BoolError> {
unsafe {
glib::result_from_gboolean!(
ffi::gst_gl_filter_filter_texture(
self.as_ref().to_glib_none().0,
input.to_glib_none().0,
output.to_glib_none().0
),
"Failed to transform texture"
)
}
}
fn render_to_target<P: FnMut(&GLFilter, &GLMemory) -> bool>(
&self,
input: &GLMemory,
output: &GLMemory,
func: P,
) -> Result<(), glib::error::BoolError> {
let func_data: P = func;
unsafe extern "C" fn func_func<P: FnMut(&GLFilter, &GLMemory) -> bool>(
filter: *mut ffi::GstGLFilter,
in_tex: *mut ffi::GstGLMemory,
user_data: glib::ffi::gpointer,
) -> glib::ffi::gboolean {
let filter = from_glib_borrow(filter);
let in_tex = from_glib_borrow(in_tex);
let callback: *mut P = user_data as *const _ as usize as *mut P;
let res = (*callback)(&filter, &in_tex);
res.into_glib()
}
let func = Some(func_func::<P> as _);
let super_callback0: &P = &func_data;
unsafe {
glib::result_from_gboolean!(
ffi::gst_gl_filter_render_to_target(
self.as_ref().to_glib_none().0,
mut_override(input.to_glib_none().0),
mut_override(output.to_glib_none().0),
func,
super_callback0 as *const _ as usize as *mut _
),
"`func` returned `false`"
)
}
}
fn render_to_target_with_shader(&self, input: &GLMemory, output: &GLMemory, shader: &GLShader) {
unsafe {
ffi::gst_gl_filter_render_to_target_with_shader(
self.as_ref().to_glib_none().0,
mut_override(input.to_glib_none().0),
mut_override(output.to_glib_none().0),
shader.to_glib_none().0,
);
}
}
}
