mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-06-27 10:30:35 +00:00
171 lines
5 KiB
Rust
171 lines
5 KiB
Rust
use ffi::GstGLBaseFilter;
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use gst::ffi::GstCaps;
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use crate::prelude::*;
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use glib::translate::*;
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use gst::subclass::prelude::*;
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use gst::{result_from_gboolean, Caps, LoggableError, CAT_RUST};
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use gst_base::subclass::prelude::*;
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use crate::GLBaseFilter;
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pub trait GLBaseFilterImpl: GLBaseFilterImplExt + BaseTransformImpl {
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fn gl_set_caps(
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&self,
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filter: &Self::Type,
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incaps: &Caps,
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outcaps: &Caps,
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) -> Result<(), LoggableError> {
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self.parent_gl_set_caps(filter, incaps, outcaps)
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}
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fn gl_start(&self, filter: &Self::Type) -> Result<(), LoggableError> {
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self.parent_gl_start(filter)
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}
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fn gl_stop(&self, filter: &Self::Type) {
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self.parent_gl_stop(filter)
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}
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}
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pub trait GLBaseFilterImplExt: ObjectSubclass {
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fn parent_gl_set_caps(
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&self,
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filter: &Self::Type,
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incaps: &Caps,
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outcaps: &Caps,
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) -> Result<(), LoggableError>;
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fn parent_gl_start(&self, filter: &Self::Type) -> Result<(), LoggableError>;
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fn parent_gl_stop(&self, filter: &Self::Type);
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}
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impl<T: GLBaseFilterImpl> GLBaseFilterImplExt for T {
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fn parent_gl_set_caps(
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&self,
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filter: &Self::Type,
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incaps: &Caps,
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outcaps: &Caps,
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) -> Result<(), LoggableError> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstGLBaseFilterClass;
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(*parent_class)
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.gl_set_caps
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.map(|f| {
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result_from_gboolean!(
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f(
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filter.unsafe_cast_ref::<GLBaseFilter>().to_glib_none().0,
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incaps.to_glib_none().0,
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outcaps.to_glib_none().0,
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),
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CAT_RUST,
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"Parent function `gl_set_caps` failed",
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)
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})
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.unwrap_or(Ok(()))
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}
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}
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fn parent_gl_start(&self, filter: &Self::Type) -> Result<(), LoggableError> {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstGLBaseFilterClass;
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(*parent_class)
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.gl_start
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.map(|f| {
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result_from_gboolean!(
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f(filter.unsafe_cast_ref::<GLBaseFilter>().to_glib_none().0),
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CAT_RUST,
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"Parent function `gl_start` failed",
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)
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})
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.unwrap_or(Ok(()))
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}
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}
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fn parent_gl_stop(&self, filter: &Self::Type) {
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unsafe {
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let data = T::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstGLBaseFilterClass;
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if let Some(f) = (*parent_class).gl_stop {
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f(filter.unsafe_cast_ref::<GLBaseFilter>().to_glib_none().0)
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}
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}
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}
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}
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unsafe impl<T: GLBaseFilterImpl> IsSubclassable<T> for GLBaseFilter {
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fn class_init(klass: &mut glib::Class<Self>) {
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<gst_base::BaseTransform as IsSubclassable<T>>::class_init(klass);
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let klass = klass.as_mut();
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klass.gl_set_caps = Some(gl_set_caps::<T>);
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klass.gl_start = Some(gl_start::<T>);
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klass.gl_stop = Some(gl_stop::<T>);
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}
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fn instance_init(instance: &mut glib::subclass::InitializingObject<T>) {
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<gst_base::BaseTransform as IsSubclassable<T>>::instance_init(instance)
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}
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}
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unsafe extern "C" fn gl_set_caps<T: GLBaseFilterImpl>(
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ptr: *mut GstGLBaseFilter,
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incaps: *mut GstCaps,
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outcaps: *mut GstCaps,
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) -> glib::ffi::gboolean {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.impl_();
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let wrap: Borrowed<GLBaseFilter> = from_glib_borrow(ptr);
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gst::panic_to_error!(&wrap, &imp.panicked(), false, {
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match imp.gl_set_caps(
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wrap.unsafe_cast_ref(),
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&from_glib_borrow(incaps),
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&from_glib_borrow(outcaps),
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) {
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Ok(()) => true,
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Err(err) => {
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err.log_with_object(&*wrap);
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false
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}
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}
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})
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.into_glib()
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}
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unsafe extern "C" fn gl_start<T: GLBaseFilterImpl>(
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ptr: *mut GstGLBaseFilter,
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) -> glib::ffi::gboolean {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.impl_();
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let wrap: Borrowed<GLBaseFilter> = from_glib_borrow(ptr);
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gst::panic_to_error!(&wrap, &imp.panicked(), false, {
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match imp.gl_start(wrap.unsafe_cast_ref()) {
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Ok(()) => true,
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Err(err) => {
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err.log_with_object(&*wrap);
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false
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}
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}
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})
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.into_glib()
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}
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unsafe extern "C" fn gl_stop<T: GLBaseFilterImpl>(ptr: *mut GstGLBaseFilter) {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.impl_();
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let wrap: Borrowed<GLBaseFilter> = from_glib_borrow(ptr);
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gst::panic_to_error!(&wrap, &imp.panicked(), (), {
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imp.gl_stop(wrap.unsafe_cast_ref())
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})
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}
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