vk: create Sampler from raw handle

[jinleili]

Checklist

• Run cargo clippy.
• Run RUSTFLAGS=--cfg=web_sys_unstable_apis cargo clippy --target wasm32-unknown-unknown if applicable.
• Add change to CHANGELOG.md. See simple instructions inside file.

Connections
#274
#1733

Description
With xx_from_raw and create_xx_from_hal, wgpu can now create Texture from external memory with zero-copy, when the external memory is Android camera data, it is necessary to chain the pNext of vkSampler and vkTextureView to the vkSamplerYcbcrConversionInfo object.

Testing
Tested locally with the following code:

let (vk_image, vk_sampler) = ac.device.as_hal::<Vulkan, _, _>(|device| {
    let device = device.unwrap().raw_device();
    // ...
    let hal_sampler = create_hal_sampler(device, &external_format, &format_info);
    (image, hal_sampler)
});

let sampler = ac.device.create_sampler_from_hal::<Vulkan>(
    hal_sampler, &wgpu::SamplerDescriptor::default()
);

// ...
unsafe fn create_hal_sampler(
    raw_device: &ash::Device,
    external_format: &ExternalFormatANDROID,
    format_info: &AndroidHardwareBufferFormatPropertiesANDROID,
) -> <Vulkan as Api>::Sampler {
    let conv_info = vk::SamplerYcbcrConversionCreateInfo {
        s_type: StructureType::SAMPLER_YCBCR_CONVERSION_CREATE_INFO,
        p_next: <*const ExternalFormatANDROID>::cast(external_format),
        format: format_info.format,
        ycbcr_model: match format_info.format {
            Format::UNDEFINED => format_info.suggested_ycbcr_model,
            // SD YUV
            _ => vk::SamplerYcbcrModelConversion::YCBCR_601,
        },
        ycbcr_range: format_info.suggested_ycbcr_range,
        components: format_info.sampler_ycbcr_conversion_components,
        x_chroma_offset: format_info.suggested_x_chroma_offset,
        y_chroma_offset: format_info.suggested_y_chroma_offset,
        chroma_filter: vk::Filter::LINEAR,
        force_explicit_reconstruction: vk::Bool32::default(),
    };

    let mut sampler_info = vk::SamplerCreateInfo {
        s_type: StructureType::SAMPLER_CREATE_INFO,
        p_next: std::ptr::null(),
        flags: vk::SamplerCreateFlags::default(),
        mag_filter: vk::Filter::LINEAR,
        min_filter: vk::Filter::LINEAR,
        mipmap_mode: SamplerMipmapMode::default(),
        address_mode_u: SamplerAddressMode::default(),
        address_mode_v: SamplerAddressMode::default(),
        address_mode_w: SamplerAddressMode::default(),
        mip_lod_bias: 0.0,
        anisotropy_enable: Bool32::default(),
        max_anisotropy: 1.0,
        compare_enable: Bool32::default(),
        compare_op: vk::CompareOp::NEVER,
        min_lod: 0.0,
        max_lod: 0.0,
        border_color: vk::BorderColor::default(),
        unnormalized_coordinates: Bool32::default(),
    };

    let conv_sampler_info = vk::SamplerYcbcrConversionInfo {
        s_type: StructureType::SAMPLER_YCBCR_CONVERSION_INFO,
        p_next: ::std::ptr::null(),
        conversion: raw_device
            .create_sampler_ycbcr_conversion(&conv_info, None)
            .expect("Cannot create sampler ycbcr conversion"),
    };

    sampler_info.p_next = <*const vk::SamplerYcbcrConversionInfo>::cast(&conv_sampler_info);

    let vk_sampler = raw_device
        .create_sampler(&sampler_info, None)
        .expect("Cannot create vk sampler");

    <<Vulkan as Api>::Device>::sampler_from_raw(vk_sampler)
}

[codecov-commenter]

Codecov Report

Merging #3221 (4163950) into master (04d12ba) will decrease coverage by 0.13%.
The diff coverage is 61.39%.

@@            Coverage Diff             @@
##           master    #3221      +/-   ##
==========================================
- Coverage   64.70%   64.57%   -0.14%     
==========================================
  Files          81       81              
  Lines       38819    39551     +732     
==========================================
+ Hits        25118    25539     +421     
- Misses      13701    14012     +311     

Impacted Files	Coverage Δ
player/src/lib.rs	53.31% <ø> (ø)
wgpu-core/src/id.rs	81.25% <0.00%> (-2.63%)	⬇️
wgpu-core/src/lib.rs	96.55% <ø> (ø)
wgpu-core/src/present.rs	0.00% <0.00%> (ø)
wgpu-core/src/resource.rs	25.13% <ø> (ø)
wgpu-hal/src/dx11/device.rs	0.00% <0.00%> (ø)
wgpu-hal/src/empty.rs	0.00% <ø> (ø)
wgpu-hal/src/lib.rs	26.21% <ø> (ø)
wgpu/src/backend/direct.rs	53.83% <0.00%> (-1.28%)	⬇️
wgpu/src/lib.rs	49.89% <0.00%> (-2.93%)	⬇️
... and 44 more

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[jinleili]

#3120 has covered this PR