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keyboard

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pointer

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device_memory.rs mod.rs

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xml

// use std::fmt;


/// Memory object wrapper.

/// Contains size and properties of the memory.

#[derive(Debug)]
pub struct Memory<B: gfx_hal::Backend> {
    raw: B::Memory,
    size: u64,
    properties: gfx_hal::memory::Properties,
    relevant: relevant::Relevant,
}

impl<B> Memory<B>
where
    B: gfx_hal::Backend,
{
    /// Get memory properties.

    pub fn properties(&self) -> gfx_hal::memory::Properties {
        self.properties
    }

    /// Get memory size.

    pub fn size(&self) -> u64 {
        self.size
    }

    /// Get raw memory.

    pub fn raw(&self) -> &B::Memory {
        &self.raw
    }

    /// Unwrap raw memory.

    pub fn into_raw(self) -> B::Memory {
        self.relevant.dispose();
        self.raw
    }

    /// Create memory from raw object.

    ///

    /// # Safety

    ///

    /// TODO:

    pub unsafe fn from_raw(
        raw: B::Memory,
        size: u64,
        properties: gfx_hal::memory::Properties,
    ) -> Self {
        Memory {
            properties,
            raw,
            size,
            relevant: relevant::Relevant,
        }
    }

    /// Check if this memory is host-visible and can be mapped.

    /// `memory.host_visible()` is equivalent to `memory.properties().contains(Properties::CPU_VISIBLE)`

    pub fn host_visible(&self) -> bool {
        self.properties
            .contains(gfx_hal::memory::Properties::CPU_VISIBLE)
    }

    /// Check if this memory is host-coherent and doesn't require invalidating or flushing.

    /// `memory.host_coherent()` is equivalent to `memory.properties().contains(Properties::COHERENT)`

    pub fn host_coherent(&self) -> bool {
        self.properties
            .contains(gfx_hal::memory::Properties::COHERENT)
    }
}

// pub(crate) fn memory_ptr_fmt(

//     memory: &*const Memory,

//     fmt: &mut fmt::Formatter<'_>,

// ) -> Result<(), fmt::Error> {

//     unsafe {

//         if fmt.alternate() {

//             write!(fmt, "*const {:#?}", **memory)

//         } else {

//             write!(fmt, "*const {:?}", **memory)

//         }

//     }

// }