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// Copyright (c) 2021 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.
//! A pool from which descriptor sets can be allocated.
pub use self::standard::StdDescriptorPool;
pub use self::sys::DescriptorPoolAllocError;
pub use self::sys::UnsafeDescriptorPool;
pub use self::sys::UnsafeDescriptorPoolAllocIter;
use crate::descriptor_set::layout::DescriptorSetLayout;
use crate::descriptor_set::layout::DescriptorType;
use crate::descriptor_set::UnsafeDescriptorSet;
use crate::device::DeviceOwned;
use crate::OomError;
use std::cmp;
use std::ops;
pub mod standard;
mod sys;
/// A pool from which descriptor sets can be allocated.
///
/// Since the destructor of `Alloc` must free the descriptor set, this trait is usually implemented
/// on `Arc<T>` or `&'a T` and not `T` directly, so that the `Alloc` object can hold the pool.
pub unsafe trait DescriptorPool: DeviceOwned {
/// Object that represented an allocated descriptor set.
///
/// The destructor of this object should free the descriptor set.
type Alloc: DescriptorPoolAlloc;
/// Allocates a descriptor set.
fn alloc(&mut self, layout: &DescriptorSetLayout) -> Result<Self::Alloc, OomError>;
}
/// An allocated descriptor set.
pub trait DescriptorPoolAlloc {
/// Returns the inner unsafe descriptor set object.
fn inner(&self) -> &UnsafeDescriptorSet;
/// Returns the inner unsafe descriptor set object.
fn inner_mut(&mut self) -> &mut UnsafeDescriptorSet;
}
macro_rules! descriptors_count {
($($name:ident,)+) => (
/// Number of available descriptors slots in a pool.
///
/// # Example
///
/// ```
/// use vulkano::descriptor_set::pool::DescriptorsCount;
///
/// let _descriptors = DescriptorsCount {
/// uniform_buffer: 10,
/// input_attachment: 5,
/// .. DescriptorsCount::zero()
/// };
/// ```
///
#[derive(Debug, Copy, Clone)]
pub struct DescriptorsCount {
$(
pub $name: u32,
)+
}
impl DescriptorsCount {
/// Returns a `DescriptorsCount` object with all fields set to 0.
#[inline]
pub fn zero() -> DescriptorsCount {
DescriptorsCount {
$(
$name: 0,
)+
}
}
/// Adds one descriptor of the given type to the count.
#[inline]
pub fn add_one(&mut self, ty: DescriptorType) {
self.add_num(ty, 1);
}
/// Adds `num` descriptors of the given type to the count.
#[inline]
pub fn add_num(&mut self, ty: DescriptorType, num: u32) {
match ty {
DescriptorType::Sampler => self.sampler += num,
DescriptorType::CombinedImageSampler => self.combined_image_sampler += num,
DescriptorType::SampledImage => self.sampled_image += num,
DescriptorType::StorageImage => self.storage_image += num,
DescriptorType::UniformTexelBuffer => self.uniform_texel_buffer += num,
DescriptorType::StorageTexelBuffer => self.storage_texel_buffer += num,
DescriptorType::UniformBuffer => self.uniform_buffer += num,
DescriptorType::StorageBuffer => self.storage_buffer += num,
DescriptorType::UniformBufferDynamic => self.uniform_buffer_dynamic += num,
DescriptorType::StorageBufferDynamic => self.storage_buffer_dynamic += num,
DescriptorType::InputAttachment => self.input_attachment += num,
};
}
}
impl cmp::PartialEq for DescriptorsCount {
#[inline]
fn eq(&self, other: &DescriptorsCount) -> bool {
self.partial_cmp(other) == Some(cmp::Ordering::Equal)
}
}
impl cmp::Eq for DescriptorsCount {
}
impl cmp::PartialOrd for DescriptorsCount {
fn partial_cmp(&self, other: &DescriptorsCount) -> Option<cmp::Ordering> {
if $(self.$name > other.$name)&&+ {
Some(cmp::Ordering::Greater)
} else if $(self.$name < other.$name)&&+ {
Some(cmp::Ordering::Less)
} else if $(self.$name == other.$name)&&+ {
Some(cmp::Ordering::Equal)
} else {
None
}
}
fn le(&self, other: &DescriptorsCount) -> bool {
$(self.$name <= other.$name)&&+
}
fn ge(&self, other: &DescriptorsCount) -> bool {
$(self.$name >= other.$name)&&+
}
}
impl ops::Sub for DescriptorsCount {
type Output = DescriptorsCount;
#[inline]
fn sub(self, rhs: DescriptorsCount) -> DescriptorsCount {
DescriptorsCount {
$(
$name: self.$name - rhs.$name,
)+
}
}
}
impl ops::SubAssign for DescriptorsCount {
#[inline]
fn sub_assign(&mut self, rhs: DescriptorsCount) {
$(
self.$name -= rhs.$name;
)+
}
}
impl ops::Add for DescriptorsCount {
type Output = DescriptorsCount;
#[inline]
fn add(self, rhs: DescriptorsCount) -> DescriptorsCount {
DescriptorsCount {
$(
$name: self.$name + rhs.$name,
)+
}
}
}
impl ops::AddAssign for DescriptorsCount {
#[inline]
fn add_assign(&mut self, rhs: DescriptorsCount) {
$(
self.$name += rhs.$name;
)+
}
}
impl ops::Mul<u32> for DescriptorsCount {
type Output = DescriptorsCount;
#[inline]
fn mul(self, rhs: u32) -> DescriptorsCount {
DescriptorsCount {
$(
$name: self.$name * rhs,
)+
}
}
}
impl ops::MulAssign<u32> for DescriptorsCount {
#[inline]
fn mul_assign(&mut self, rhs: u32) {
$(
self.$name *= rhs;
)+
}
}
);
}
descriptors_count! {
uniform_buffer,
storage_buffer,
uniform_buffer_dynamic,
storage_buffer_dynamic,
uniform_texel_buffer,
storage_texel_buffer,
sampled_image,
storage_image,
sampler,
combined_image_sampler,
input_attachment,
}
|
