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Diffstat (limited to 'src/descriptor_set/layout/sys.rs')
| -rw-r--r-- | src/descriptor_set/layout/sys.rs | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/src/descriptor_set/layout/sys.rs b/src/descriptor_set/layout/sys.rs deleted file mode 100644 index 656f767..0000000 --- a/src/descriptor_set/layout/sys.rs +++ /dev/null @@ -1,202 +0,0 @@ -// Copyright (c) 2016 The vulkano developers -// Licensed under the Apache License, Version 2.0 -// <LICENSE-APACHE or -// https://www.apache.org/licenses/LICENSE-2.0> or the MIT -// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, -// at your option. All files in the project carrying such -// notice may not be copied, modified, or distributed except -// according to those terms. - -use crate::check_errors; -use crate::descriptor_set::layout::DescriptorDesc; -use crate::descriptor_set::layout::DescriptorSetDesc; -use crate::descriptor_set::pool::DescriptorsCount; -use crate::device::Device; -use crate::device::DeviceOwned; -use crate::OomError; -use crate::VulkanObject; -use smallvec::SmallVec; -use std::mem::MaybeUninit; -use std::ptr; -use std::sync::Arc; - -/// Describes to the Vulkan implementation the layout of all descriptors within a descriptor set. -#[derive(Debug)] -pub struct DescriptorSetLayout { - // The layout. - handle: ash::vk::DescriptorSetLayout, - // The device this layout belongs to. - device: Arc<Device>, - // Descriptors. - desc: DescriptorSetDesc, - // Number of descriptors. - descriptors_count: DescriptorsCount, -} - -impl DescriptorSetLayout { - /// Builds a new `DescriptorSetLayout` with the given descriptors. - /// - /// The descriptors must be passed in the order of the bindings. In order words, descriptor - /// at bind point 0 first, then descriptor at bind point 1, and so on. If a binding must remain - /// empty, you can make the iterator yield `None` for an element. - pub fn new<D>(device: Arc<Device>, desc: D) -> Result<DescriptorSetLayout, OomError> - where - D: Into<DescriptorSetDesc>, - { - let desc = desc.into(); - let mut descriptors_count = DescriptorsCount::zero(); - - let bindings = desc - .bindings() - .iter() - .enumerate() - .filter_map(|(binding, desc)| { - let desc = match desc { - Some(d) => d, - None => return None, - }; - - // FIXME: it is not legal to pass eg. the TESSELLATION_SHADER bit when the device - // doesn't have tess shaders enabled - - let ty = desc.ty.ty(); - descriptors_count.add_num(ty, desc.array_count); - - Some(ash::vk::DescriptorSetLayoutBinding { - binding: binding as u32, - descriptor_type: ty.into(), - descriptor_count: desc.array_count, - stage_flags: desc.stages.into(), - p_immutable_samplers: ptr::null(), // FIXME: not yet implemented - }) - }) - .collect::<SmallVec<[_; 32]>>(); - - // Note that it seems legal to have no descriptor at all in the set. - - let handle = unsafe { - let infos = ash::vk::DescriptorSetLayoutCreateInfo { - flags: ash::vk::DescriptorSetLayoutCreateFlags::empty(), - binding_count: bindings.len() as u32, - p_bindings: bindings.as_ptr(), - ..Default::default() - }; - - let mut output = MaybeUninit::uninit(); - let fns = device.fns(); - check_errors(fns.v1_0.create_descriptor_set_layout( - device.internal_object(), - &infos, - ptr::null(), - output.as_mut_ptr(), - ))?; - output.assume_init() - }; - - Ok(DescriptorSetLayout { - handle, - device, - desc, - descriptors_count, - }) - } - - pub(crate) fn desc(&self) -> &DescriptorSetDesc { - &self.desc - } - - /// Returns the number of descriptors of each type. - #[inline] - pub fn descriptors_count(&self) -> &DescriptorsCount { - &self.descriptors_count - } - - /// Returns the number of binding slots in the set. - #[inline] - pub fn num_bindings(&self) -> usize { - self.desc.bindings().len() - } - - /// Returns a description of a descriptor, or `None` if out of range. - #[inline] - pub fn descriptor(&self, binding: usize) -> Option<DescriptorDesc> { - self.desc.bindings().get(binding).cloned().unwrap_or(None) - } -} - -unsafe impl DeviceOwned for DescriptorSetLayout { - #[inline] - fn device(&self) -> &Arc<Device> { - &self.device - } -} - -unsafe impl VulkanObject for DescriptorSetLayout { - type Object = ash::vk::DescriptorSetLayout; - - #[inline] - fn internal_object(&self) -> ash::vk::DescriptorSetLayout { - self.handle - } -} - -impl Drop for DescriptorSetLayout { - #[inline] - fn drop(&mut self) { - unsafe { - let fns = self.device.fns(); - fns.v1_0.destroy_descriptor_set_layout( - self.device.internal_object(), - self.handle, - ptr::null(), - ); - } - } -} - -#[cfg(test)] -mod tests { - use crate::descriptor_set::layout::DescriptorBufferDesc; - use crate::descriptor_set::layout::DescriptorDesc; - use crate::descriptor_set::layout::DescriptorDescTy; - use crate::descriptor_set::layout::DescriptorSetDesc; - use crate::descriptor_set::layout::DescriptorSetLayout; - use crate::descriptor_set::pool::DescriptorsCount; - use crate::pipeline::shader::ShaderStages; - use std::iter; - - #[test] - fn empty() { - let (device, _) = gfx_dev_and_queue!(); - let _layout = DescriptorSetLayout::new(device, DescriptorSetDesc::empty()); - } - - #[test] - fn basic_create() { - let (device, _) = gfx_dev_and_queue!(); - - let layout = DescriptorDesc { - ty: DescriptorDescTy::Buffer(DescriptorBufferDesc { - dynamic: Some(false), - storage: false, - }), - array_count: 1, - stages: ShaderStages::all_graphics(), - readonly: true, - }; - - let sl = DescriptorSetLayout::new( - device.clone(), - DescriptorSetDesc::new(iter::once(Some(layout))), - ) - .unwrap(); - - assert_eq!( - sl.descriptors_count(), - &DescriptorsCount { - uniform_buffer: 1, - ..DescriptorsCount::zero() - } - ); - } -} |