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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use crate::error::ErrorBufferType;
use wgc::id;
pub use wgc::command::{compute_ffi::*, render_ffi::*};
pub mod client;
pub mod error;
pub mod server;
pub use wgc::device::trace::Command as CommandEncoderAction;
use std::marker::PhantomData;
use std::{borrow::Cow, mem, slice};
use nsstring::nsACString;
type RawString = *const std::os::raw::c_char;
//TODO: figure out why 'a and 'b have to be different here
//TODO: remove this
fn cow_label<'a, 'b>(raw: &'a RawString) -> Option<Cow<'b, str>> {
if raw.is_null() {
None
} else {
let cstr = unsafe { std::ffi::CStr::from_ptr(*raw) };
cstr.to_str().ok().map(Cow::Borrowed)
}
}
// Hides the repeated boilerplate of turning a `Option<&nsACString>` into a `Option<Cow<str>`.
pub fn wgpu_string(gecko_string: Option<&nsACString>) -> Option<Cow<str>> {
gecko_string.map(|s| s.to_utf8())
}
/// An equivalent of `&[T]` for ffi structures and function parameters.
#[repr(C)]
pub struct FfiSlice<'a, T> {
// `data` may be null.
pub data: *const T,
pub length: usize,
pub _marker: PhantomData<&'a T>,
}
impl<'a, T> FfiSlice<'a, T> {
pub unsafe fn as_slice(&self) -> &'a [T] {
if self.data.is_null() {
// It is invalid to construct a rust slice with a null pointer.
return &[];
}
std::slice::from_raw_parts(self.data, self.length)
}
}
impl<'a, T> Copy for FfiSlice<'a, T> {}
impl<'a, T> Clone for FfiSlice<'a, T> {
fn clone(&self) -> Self {
*self
}
}
#[repr(C)]
pub struct ByteBuf {
data: *const u8,
len: usize,
capacity: usize,
}
impl ByteBuf {
fn from_vec(vec: Vec<u8>) -> Self {
if vec.is_empty() {
ByteBuf {
data: std::ptr::null(),
len: 0,
capacity: 0,
}
} else {
let bb = ByteBuf {
data: vec.as_ptr(),
len: vec.len(),
capacity: vec.capacity(),
};
mem::forget(vec);
bb
}
}
unsafe fn as_slice(&self) -> &[u8] {
slice::from_raw_parts(self.data, self.len)
}
}
#[repr(C)]
#[derive(serde::Serialize, serde::Deserialize)]
pub struct AdapterInformation<S> {
id: id::AdapterId,
limits: wgt::Limits,
features: wgt::Features,
name: S,
vendor: u32,
device: u32,
device_type: wgt::DeviceType,
driver: S,
driver_info: S,
backend: wgt::Backend,
}
#[derive(serde::Serialize, serde::Deserialize)]
struct ImplicitLayout<'a> {
pipeline: id::PipelineLayoutId,
bind_groups: Cow<'a, [Option<id::BindGroupLayoutId>]>,
}
#[derive(serde::Serialize, serde::Deserialize)]
enum DeviceAction<'a> {
CreateTexture(
id::TextureId,
wgc::resource::TextureDescriptor<'a>,
Option<SwapChainId>,
),
CreateSampler(id::SamplerId, wgc::resource::SamplerDescriptor<'a>),
CreateBindGroupLayout(
id::BindGroupLayoutId,
wgc::binding_model::BindGroupLayoutDescriptor<'a>,
),
RenderPipelineGetBindGroupLayout(id::RenderPipelineId, u32, id::BindGroupLayoutId),
ComputePipelineGetBindGroupLayout(id::ComputePipelineId, u32, id::BindGroupLayoutId),
CreatePipelineLayout(
id::PipelineLayoutId,
wgc::binding_model::PipelineLayoutDescriptor<'a>,
),
CreateBindGroup(id::BindGroupId, wgc::binding_model::BindGroupDescriptor<'a>),
CreateShaderModule(
id::ShaderModuleId,
wgc::pipeline::ShaderModuleDescriptor<'a>,
Cow<'a, str>,
),
CreateComputePipeline(
id::ComputePipelineId,
wgc::pipeline::ComputePipelineDescriptor<'a>,
Option<ImplicitLayout<'a>>,
),
CreateRenderPipeline(
id::RenderPipelineId,
wgc::pipeline::RenderPipelineDescriptor<'a>,
Option<ImplicitLayout<'a>>,
),
CreateRenderBundle(
id::RenderBundleId,
wgc::command::RenderBundleEncoder,
wgc::command::RenderBundleDescriptor<'a>,
),
CreateRenderBundleError(id::RenderBundleId, wgc::Label<'a>),
CreateCommandEncoder(
id::CommandEncoderId,
wgt::CommandEncoderDescriptor<wgc::Label<'a>>,
),
Error {
message: String,
r#type: ErrorBufferType,
},
}
#[derive(serde::Serialize, serde::Deserialize)]
enum QueueWriteAction {
Buffer {
dst: id::BufferId,
offset: wgt::BufferAddress,
},
Texture {
dst: wgt::ImageCopyTexture<id::TextureId>,
layout: wgt::ImageDataLayout,
size: wgt::Extent3d,
},
}
#[derive(serde::Serialize, serde::Deserialize)]
enum TextureAction<'a> {
CreateView(id::TextureViewId, wgc::resource::TextureViewDescriptor<'a>),
}
#[repr(C)]
#[derive(serde::Serialize, serde::Deserialize)]
enum DropAction {
Adapter(id::AdapterId),
Device(id::DeviceId),
ShaderModule(id::ShaderModuleId),
PipelineLayout(id::PipelineLayoutId),
BindGroupLayout(id::BindGroupLayoutId),
BindGroup(id::BindGroupId),
CommandBuffer(id::CommandBufferId),
RenderBundle(id::RenderBundleId),
RenderPipeline(id::RenderPipelineId),
ComputePipeline(id::ComputePipelineId),
Buffer(id::BufferId),
Texture(id::TextureId),
TextureView(id::TextureViewId),
Sampler(id::SamplerId),
}
impl DropAction {
// helper function to construct byte bufs
fn to_byte_buf(&self) -> ByteBuf {
let mut data = Vec::new();
bincode::serialize_into(&mut data, self).unwrap();
ByteBuf::from_vec(data)
}
}
#[repr(C)]
pub struct ImageDataLayout<'a> {
pub offset: wgt::BufferAddress,
pub bytes_per_row: Option<&'a u32>,
pub rows_per_image: Option<&'a u32>,
}
impl<'a> ImageDataLayout<'a> {
fn into_wgt(&self) -> wgt::ImageDataLayout {
wgt::ImageDataLayout {
offset: self.offset,
bytes_per_row: self.bytes_per_row.map(|bpr| *bpr),
rows_per_image: self.rows_per_image.map(|rpi| *rpi),
}
}
}
#[repr(C)]
#[derive(Copy, Clone, Debug, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
pub struct SwapChainId(pub u64);
|
