ash/extensions/khr/
ray_tracing_pipeline.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
use crate::prelude::*;
use crate::vk;
use crate::RawPtr;
use crate::{Device, Instance};
use std::ffi::CStr;
use std::mem;

#[derive(Clone)]
pub struct RayTracingPipeline {
    handle: vk::Device,
    fp: vk::KhrRayTracingPipelineFn,
}

impl RayTracingPipeline {
    pub fn new(instance: &Instance, device: &Device) -> Self {
        let handle = device.handle();
        let fp = vk::KhrRayTracingPipelineFn::load(|name| unsafe {
            mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
        });
        Self { handle, fp }
    }

    #[inline]
    pub unsafe fn get_properties(
        instance: &Instance,
        pdevice: vk::PhysicalDevice,
    ) -> vk::PhysicalDeviceRayTracingPipelinePropertiesKHR {
        let mut props_rt = vk::PhysicalDeviceRayTracingPipelinePropertiesKHR::default();
        {
            let mut props = vk::PhysicalDeviceProperties2::builder().push_next(&mut props_rt);
            instance.get_physical_device_properties2(pdevice, &mut props);
        }
        props_rt
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkCmdTraceRaysKHR.html>
    #[inline]
    pub unsafe fn cmd_trace_rays(
        &self,
        command_buffer: vk::CommandBuffer,
        raygen_shader_binding_tables: &vk::StridedDeviceAddressRegionKHR,
        miss_shader_binding_tables: &vk::StridedDeviceAddressRegionKHR,
        hit_shader_binding_tables: &vk::StridedDeviceAddressRegionKHR,
        callable_shader_binding_tables: &vk::StridedDeviceAddressRegionKHR,
        width: u32,
        height: u32,
        depth: u32,
    ) {
        (self.fp.cmd_trace_rays_khr)(
            command_buffer,
            raygen_shader_binding_tables,
            miss_shader_binding_tables,
            hit_shader_binding_tables,
            callable_shader_binding_tables,
            width,
            height,
            depth,
        );
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkCreateRayTracingPipelinesKHR.html>
    #[inline]
    pub unsafe fn create_ray_tracing_pipelines(
        &self,
        deferred_operation: vk::DeferredOperationKHR,
        pipeline_cache: vk::PipelineCache,
        create_info: &[vk::RayTracingPipelineCreateInfoKHR],
        allocation_callbacks: Option<&vk::AllocationCallbacks>,
    ) -> VkResult<Vec<vk::Pipeline>> {
        let mut pipelines = vec![mem::zeroed(); create_info.len()];
        (self.fp.create_ray_tracing_pipelines_khr)(
            self.handle,
            deferred_operation,
            pipeline_cache,
            create_info.len() as u32,
            create_info.as_ptr(),
            allocation_callbacks.as_raw_ptr(),
            pipelines.as_mut_ptr(),
        )
        .result_with_success(pipelines)
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetRayTracingShaderGroupHandlesKHR.html>
    #[inline]
    pub unsafe fn get_ray_tracing_shader_group_handles(
        &self,
        pipeline: vk::Pipeline,
        first_group: u32,
        group_count: u32,
        data_size: usize,
    ) -> VkResult<Vec<u8>> {
        let mut data = Vec::<u8>::with_capacity(data_size);
        (self.fp.get_ray_tracing_shader_group_handles_khr)(
            self.handle,
            pipeline,
            first_group,
            group_count,
            data_size,
            data.as_mut_ptr().cast(),
        )
        .result()?;
        data.set_len(data_size);
        Ok(data)
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetRayTracingCaptureReplayShaderGroupHandlesKHR.html>
    #[inline]
    pub unsafe fn get_ray_tracing_capture_replay_shader_group_handles(
        &self,
        pipeline: vk::Pipeline,
        first_group: u32,
        group_count: u32,
        data_size: usize,
    ) -> VkResult<Vec<u8>> {
        let mut data = Vec::<u8>::with_capacity(data_size);
        (self
            .fp
            .get_ray_tracing_capture_replay_shader_group_handles_khr)(
            self.handle,
            pipeline,
            first_group,
            group_count,
            data_size,
            data.as_mut_ptr().cast(),
        )
        .result()?;
        data.set_len(data_size);
        Ok(data)
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkCmdTraceRaysIndirectKHR.html>
    ///
    /// `indirect_device_address` is a buffer device address which is a pointer to a [`vk::TraceRaysIndirectCommandKHR`] structure containing the trace ray parameters.
    #[inline]
    pub unsafe fn cmd_trace_rays_indirect(
        &self,
        command_buffer: vk::CommandBuffer,
        raygen_shader_binding_table: &[vk::StridedDeviceAddressRegionKHR],
        miss_shader_binding_table: &[vk::StridedDeviceAddressRegionKHR],
        hit_shader_binding_table: &[vk::StridedDeviceAddressRegionKHR],
        callable_shader_binding_table: &[vk::StridedDeviceAddressRegionKHR],
        indirect_device_address: vk::DeviceAddress,
    ) {
        (self.fp.cmd_trace_rays_indirect_khr)(
            command_buffer,
            raygen_shader_binding_table.as_ptr(),
            miss_shader_binding_table.as_ptr(),
            hit_shader_binding_table.as_ptr(),
            callable_shader_binding_table.as_ptr(),
            indirect_device_address,
        );
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetRayTracingShaderGroupStackSizeKHR.html>
    #[inline]
    pub unsafe fn get_ray_tracing_shader_group_stack_size(
        &self,
        pipeline: vk::Pipeline,
        group: u32,
        group_shader: vk::ShaderGroupShaderKHR,
    ) -> vk::DeviceSize {
        (self.fp.get_ray_tracing_shader_group_stack_size_khr)(
            self.handle,
            pipeline,
            group,
            group_shader,
        )
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkCmdSetRayTracingPipelineStackSizeKHR.html>
    #[inline]
    pub unsafe fn cmd_set_ray_tracing_pipeline_stack_size(
        &self,
        command_buffer: vk::CommandBuffer,
        pipeline_stack_size: u32,
    ) {
        (self.fp.cmd_set_ray_tracing_pipeline_stack_size_khr)(command_buffer, pipeline_stack_size);
    }

    #[inline]
    pub const fn name() -> &'static CStr {
        vk::KhrRayTracingPipelineFn::name()
    }

    #[inline]
    pub fn fp(&self) -> &vk::KhrRayTracingPipelineFn {
        &self.fp
    }

    #[inline]
    pub fn device(&self) -> vk::Device {
        self.handle
    }
}