forked from mirrors/gstreamer-rs
134 lines
4 KiB
Rust
134 lines
4 KiB
Rust
use ffi::{GstGLBaseSrc, GstGLMemory};
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use glib::translate::*;
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use gst::{result_from_gboolean, LoggableError, CAT_RUST};
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use gst_base::subclass::prelude::*;
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use crate::{prelude::*, GLBaseSrc, GLMemory, GLAPI};
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pub trait GLBaseSrcImpl: GLBaseSrcImplExt + PushSrcImpl {
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const SUPPORTED_GL_API: GLAPI;
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fn gl_start(&self) -> Result<(), LoggableError> {
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self.parent_gl_start()
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}
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fn gl_stop(&self) {
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self.parent_gl_stop()
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}
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fn fill_gl_memory(&self, memory: &GLMemory) -> Result<(), LoggableError> {
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self.parent_fill_gl_memory(memory)
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}
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}
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mod sealed {
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pub trait Sealed {}
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impl<T: super::GLBaseSrcImplExt> Sealed for T {}
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}
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pub trait GLBaseSrcImplExt: sealed::Sealed + ObjectSubclass {
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fn parent_gl_start(&self) -> Result<(), LoggableError> {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstGLBaseSrcClass;
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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(self.obj().unsafe_cast_ref::<GLBaseSrc>().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) {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstGLBaseSrcClass;
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if let Some(f) = (*parent_class).gl_stop {
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f(self.obj().unsafe_cast_ref::<GLBaseSrc>().to_glib_none().0)
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}
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}
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}
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fn parent_fill_gl_memory(&self, memory: &GLMemory) -> Result<(), LoggableError> {
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unsafe {
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let data = Self::type_data();
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let parent_class = data.as_ref().parent_class() as *mut ffi::GstGLBaseSrcClass;
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(*parent_class)
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.fill_gl_memory
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.map(|f| {
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result_from_gboolean!(
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f(
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self.obj().unsafe_cast_ref::<GLBaseSrc>().to_glib_none().0,
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mut_override(memory.to_glib_none().0),
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),
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CAT_RUST,
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"Parent function `fill_gl_memory` 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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}
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impl<T: GLBaseSrcImpl> GLBaseSrcImplExt for T {}
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unsafe impl<T: GLBaseSrcImpl> IsSubclassable<T> for GLBaseSrc {
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fn class_init(klass: &mut glib::Class<Self>) {
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Self::parent_class_init::<T>(klass);
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let klass = klass.as_mut();
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klass.supported_gl_api = T::SUPPORTED_GL_API.into_glib();
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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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klass.fill_gl_memory = Some(fill_gl_memory::<T>);
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}
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}
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unsafe extern "C" fn gl_start<T: GLBaseSrcImpl>(ptr: *mut GstGLBaseSrc) -> glib::ffi::gboolean {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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gst::panic_to_error!(imp, false, {
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match imp.gl_start() {
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Ok(()) => true,
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Err(err) => {
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err.log_with_imp(imp);
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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: GLBaseSrcImpl>(ptr: *mut GstGLBaseSrc) {
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let instance = &*(ptr as *mut T::Instance);
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let imp = instance.imp();
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gst::panic_to_error!(imp, (), { imp.gl_stop() })
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}
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unsafe extern "C" fn fill_gl_memory<T: GLBaseSrcImpl>(
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ptr: *mut GstGLBaseSrc,
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memory: *mut GstGLMemory,
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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.imp();
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gst::panic_to_error!(imp, false, {
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match imp.fill_gl_memory(&from_glib_borrow(memory)) {
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Ok(()) => true,
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Err(err) => {
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err.log_with_imp(imp);
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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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