gstreamer_gl/
gl_base_memory.rs

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1use ffi::GstGLBaseMemory;
2use glib::{prelude::*, translate::*};
3use gst::{Memory, MemoryRef};
4
5use crate::{ffi, GLAllocationParams, GLBaseMemoryAllocator};
6
7gst::memory_object_wrapper!(
8    GLBaseMemory,
9    GLBaseMemoryRef,
10    GstGLBaseMemory,
11    |mem: &MemoryRef| { unsafe { from_glib(ffi::gst_is_gl_base_memory(mem.as_mut_ptr())) } },
12    Memory,
13    MemoryRef
14);
15
16impl std::fmt::Debug for GLBaseMemory {
17    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
18        GLBaseMemoryRef::fmt(self, f)
19    }
20}
21
22impl std::fmt::Debug for GLBaseMemoryRef {
23    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
24        gst::MemoryRef::fmt(self, f)
25    }
26}
27
28impl GLBaseMemoryRef {
29    // Note: only intended for subclass usage to allocate the system memory buffer
30    // on demand.  If there is already a non-NULL data pointer in @gl_mem->data,
31    // then this function imply returns TRUE.
32    // #[doc(alias = "gst_gl_base_memory_alloc_data")]
33    // pub fn alloc_data(&mut self) -> bool {
34    //     Self::init_once();
35    //     unsafe { from_glib(ffi::gst_gl_base_memory_alloc_data(&mut self.0)) }
36    // }
37
38    //#[doc(alias = "gst_gl_base_memory_init")]
39    //pub fn init<P: IsA<gst::Allocator>, Q: IsA<GLContext>>(&mut self, allocator: &P, parent: Option<&mut gst::Memory>, context: &Q, params: Option<&mut gst::AllocationParams>, size: usize, user_data: /*Unimplemented*/Option<Fundamental: Pointer>) {
40    //    unsafe { TODO: call ffi:gst_gl_base_memory_init() }
41    //}
42
43    #[doc(alias = "gst_gl_base_memory_memcpy")]
44    pub unsafe fn memcpy(
45        &self,
46        dest: &mut GLBaseMemory,
47        offset: isize,
48        size: isize,
49    ) -> Result<(), glib::BoolError> {
50        Self::init_once();
51        glib::result_from_gboolean!(
52            ffi::gst_gl_base_memory_memcpy(
53                mut_override(&self.0),
54                dest.to_glib_none_mut().0,
55                offset,
56                size,
57            ),
58            "Failed to copy memory"
59        )
60    }
61
62    #[doc(alias = "gst_gl_base_memory_alloc")]
63    pub fn alloc<P: IsA<GLBaseMemoryAllocator>>(
64        allocator: &P,
65        params: &GLAllocationParams,
66    ) -> Result<GLBaseMemory, glib::BoolError> {
67        skip_assert_initialized!();
68        Self::init_once();
69        unsafe {
70            Option::<_>::from_glib_full(ffi::gst_gl_base_memory_alloc(
71                allocator.as_ref().to_glib_none().0,
72                mut_override(params.to_glib_none().0),
73            ))
74            .ok_or_else(|| glib::bool_error!("Failed to allocate memory"))
75        }
76    }
77
78    #[doc(alias = "gst_gl_base_memory_init_once")]
79    fn init_once() {
80        assert_initialized_main_thread!();
81        unsafe {
82            ffi::gst_gl_base_memory_init_once();
83        }
84    }
85
86    pub fn context(&self) -> &crate::GLContext {
87        unsafe {
88            &*(&(*self.as_ptr()).context as *const *mut ffi::GstGLContext
89                as *const crate::GLContext)
90        }
91    }
92}
gstreamer_gl/gl_base_memory.rs

gstreamer_gl/
gl_base_memory.rs
