mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer-rs.git
synced 2024-06-03 05:49:37 +00:00
Directly poke at GstPad struct for retrieving pad function data
glib-sys was just fixed: https://github.com/gtk-rs/sys/pull/62
This commit is contained in:
Sebastian Dröge
parent
f4958b71d7
commit
e026c2f652
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@ -669,30 +669,14 @@ unsafe extern "C" fn trampoline_pad_probe(
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ret
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}
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// FIXME: Workaround for GHookList being truncated in the -sys bindings
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macro_rules! pad_member_offset(
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($pad:ident, $member:ident) => {{
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let probes_addr = &(*$pad).probes as *const _ as usize;
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let mode_addr = &(*$pad).mode as *const _ as usize;
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let member_addr = &(*$pad).$member as *const _ as usize;
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let hooklist_size = mem::size_of::<libc::c_ulong>()
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// 16+1 bits, next is pointer => pointer alignment padding
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+ mem::size_of::<*const libc::c_void>()
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+ 5 * mem::size_of::<*const libc::c_void>();
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let real_member_addr = member_addr - (mode_addr - probes_addr) + hooklist_size;
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*(real_member_addr as *const *const libc::c_void)
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}}
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);
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unsafe extern "C" fn trampoline_activate_function(
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pad: *mut ffi::GstPad,
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parent: *mut ffi::GstObject,
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) -> glib_ffi::gboolean {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, activatedata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>) -> bool + Send + Sync + 'static) = transmute(func);
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let func: &&(Fn(&Pad, &Option<::Object>) -> bool + Send + Sync + 'static) =
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transmute((*pad).activatedata);
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func(&from_glib_borrow(pad), &from_glib_borrow(parent)).to_glib()
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}
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@ -704,12 +688,11 @@ unsafe extern "C" fn trampoline_activatemode_function(
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active: glib_ffi::gboolean,
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) -> glib_ffi::gboolean {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, activatemodedata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, ::PadMode, bool) -> bool
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+ Send
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+ Sync
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+ 'static) = transmute(func);
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+ 'static) = transmute((*pad).activatemodedata);
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func(
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&from_glib_borrow(pad),
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@ -725,12 +708,11 @@ unsafe extern "C" fn trampoline_chain_function(
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buffer: *mut ffi::GstBuffer,
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) -> ffi::GstFlowReturn {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, chaindata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, ::Buffer) -> ::FlowReturn
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+ Send
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+ Sync
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+ 'static) = transmute(func);
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+ 'static) = transmute((*pad).chaindata);
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func(
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&from_glib_borrow(pad),
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@ -745,12 +727,11 @@ unsafe extern "C" fn trampoline_chain_list_function(
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list: *mut ffi::GstBufferList,
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) -> ffi::GstFlowReturn {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, chainlistdata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, ::BufferList) -> ::FlowReturn
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+ Send
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+ Sync
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+ 'static) = transmute(func);
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+ 'static) = transmute((*pad).chainlistdata);
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func(
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&from_glib_borrow(pad),
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@ -765,10 +746,9 @@ unsafe extern "C" fn trampoline_event_function(
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event: *mut ffi::GstEvent,
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) -> glib_ffi::gboolean {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, eventdata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, ::Event) -> bool + Send + Sync + 'static) =
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transmute(func);
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transmute((*pad).eventdata);
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func(
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&from_glib_borrow(pad),
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@ -783,12 +763,11 @@ unsafe extern "C" fn trampoline_event_full_function(
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event: *mut ffi::GstEvent,
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) -> ffi::GstFlowReturn {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, eventdata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, ::Event) -> ::FlowReturn
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+ Send
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+ Sync
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+ 'static) = transmute(func);
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+ 'static) = transmute((*pad).eventdata);
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func(
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&from_glib_borrow(pad),
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@ -805,13 +784,12 @@ unsafe extern "C" fn trampoline_getrange_function(
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buffer: *mut *mut ffi::GstBuffer,
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) -> ffi::GstFlowReturn {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, getrangedata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, u64, u32)
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-> Result<::Buffer, ::FlowReturn>
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+ Send
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+ Sync
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+ 'static) = transmute(func);
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+ 'static) = transmute((*pad).getrangedata);
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match func(
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&from_glib_borrow(pad),
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@ -832,10 +810,9 @@ unsafe extern "C" fn trampoline_iterate_internal_links_function(
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parent: *mut ffi::GstObject,
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) -> *mut ffi::GstIterator {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, iterintlinkdata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>) -> ::Iterator<Pad> + Send + Sync + 'static) =
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transmute(func);
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transmute((*pad).iterintlinkdata);
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// Steal the iterator and return it
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let ret = func(&from_glib_borrow(pad), &from_glib_borrow(parent));
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@ -851,12 +828,11 @@ unsafe extern "C" fn trampoline_link_function(
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peer: *mut ffi::GstPad,
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) -> ffi::GstPadLinkReturn {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, linkdata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, &::Pad) -> ::PadLinkReturn
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+ Send
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+ Sync
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+ 'static) = transmute(func);
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+ 'static) = transmute((*pad).linkdata);
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func(
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&from_glib_borrow(pad),
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@ -871,12 +847,11 @@ unsafe extern "C" fn trampoline_query_function(
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query: *mut ffi::GstQuery,
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) -> glib_ffi::gboolean {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, querydata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>, &mut ::QueryRef) -> bool
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+ Send
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+ Sync
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+ 'static) = transmute(func);
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+ 'static) = transmute((*pad).querydata);
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func(
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&from_glib_borrow(pad),
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@ -890,9 +865,9 @@ unsafe extern "C" fn trampoline_unlink_function(
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parent: *mut ffi::GstObject,
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) {
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let _guard = CallbackGuard::new();
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let func = pad_member_offset!(pad, unlinkdata);
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#[cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ref))]
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let func: &&(Fn(&Pad, &Option<::Object>) + Send + Sync + 'static) = transmute(func);
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let func: &&(Fn(&Pad, &Option<::Object>) + Send + Sync + 'static) =
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transmute((*pad).unlinkdata);
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func(&from_glib_borrow(pad), &from_glib_borrow(parent))
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}
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