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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `maplibre/src/render/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button><a class="sidebar-logo" href="../../../maplibre/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a><h2 class="location"></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../../maplibre/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../../maplibre/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><button type="button">?</button></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav></div><section id="main-content" class="content"><div class="example-wrap"><pre class="line-numbers"><span id="1">1</span>
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
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|
||
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|
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|
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|
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|
||
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|
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|
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="527">527</span>
|
||
</pre><pre class="rust"><code><span class="doccomment">//! This module implements the rendering algorithm of maplibre-rs. It manages the whole
|
||
//! communication with the GPU.
|
||
//!
|
||
//! The render in this module is largely based on the
|
||
//! [bevy_render](https://github.com/bevyengine/bevy/tree/aced6a/crates/bevy_render)
|
||
//! crate with commit `aced6a`.
|
||
//! It is dual-licensed under MIT and Apache:
|
||
//!
|
||
//! ```text
|
||
//! Bevy is dual-licensed under either
|
||
//!
|
||
//! * MIT License (docs/LICENSE-MIT or http://opensource.org/licenses/MIT)
|
||
//! * Apache License, Version 2.0 (docs/LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
|
||
//!
|
||
//! at your option.
|
||
//! ```
|
||
//!
|
||
//! We appreciate the design and implementation work which as gone into it.
|
||
//!
|
||
|
||
</span><span class="kw">use </span>std::sync::Arc;
|
||
|
||
<span class="kw">use </span>log::info;
|
||
|
||
<span class="kw">use crate</span>::{
|
||
render::{
|
||
eventually::Eventually,
|
||
render_phase::RenderPhase,
|
||
resource::{BufferPool, Globals, Head, IndexEntry, Surface, Texture, TextureView},
|
||
settings::{RendererSettings, WgpuSettings},
|
||
shaders::{ShaderFeatureStyle, ShaderLayerMetadata},
|
||
tile_view_pattern::{TileInView, TileShape, TileViewPattern},
|
||
},
|
||
tessellation::IndexDataType,
|
||
};
|
||
|
||
<span class="kw">pub mod </span>graph;
|
||
<span class="kw">pub mod </span>resource;
|
||
<span class="kw">pub mod </span>stages;
|
||
|
||
<span class="comment">// Rendering internals
|
||
</span><span class="kw">mod </span>graph_runner;
|
||
<span class="kw">mod </span>main_pass;
|
||
<span class="kw">mod </span>render_commands;
|
||
<span class="kw">mod </span>render_phase;
|
||
<span class="kw">mod </span>shaders;
|
||
<span class="kw">mod </span>tile_pipeline;
|
||
<span class="kw">mod </span>tile_view_pattern;
|
||
|
||
<span class="comment">// Public API
|
||
</span><span class="kw">pub mod </span>builder;
|
||
<span class="kw">pub mod </span>camera;
|
||
<span class="kw">pub mod </span>error;
|
||
<span class="kw">pub mod </span>eventually;
|
||
<span class="kw">pub mod </span>settings;
|
||
|
||
<span class="kw">pub use </span>shaders::ShaderVertex;
|
||
<span class="kw">pub use </span>stages::register_default_render_stages;
|
||
|
||
<span class="kw">use crate</span>::{
|
||
render::{
|
||
graph::{EmptyNode, RenderGraph, RenderGraphError},
|
||
main_pass::{MainPassDriverNode, MainPassNode},
|
||
},
|
||
window::{HeadedMapWindow, MapWindow},
|
||
};
|
||
|
||
<span class="kw">const </span>INDEX_FORMAT: wgpu::IndexFormat = wgpu::IndexFormat::Uint32; <span class="comment">// Must match IndexDataType
|
||
|
||
</span><span class="kw">pub struct </span>RenderState {
|
||
render_target: Eventually<TextureView>,
|
||
|
||
buffer_pool: Eventually<
|
||
BufferPool<
|
||
wgpu::Queue,
|
||
wgpu::Buffer,
|
||
ShaderVertex,
|
||
IndexDataType,
|
||
ShaderLayerMetadata,
|
||
ShaderFeatureStyle,
|
||
>,
|
||
>,
|
||
tile_view_pattern: Eventually<TileViewPattern<wgpu::Queue, wgpu::Buffer>>,
|
||
|
||
tile_pipeline: Eventually<wgpu::RenderPipeline>,
|
||
mask_pipeline: Eventually<wgpu::RenderPipeline>,
|
||
|
||
globals_bind_group: Eventually<Globals>,
|
||
|
||
depth_texture: Eventually<Texture>,
|
||
multisampling_texture: Eventually<<span class="prelude-ty">Option</span><Texture>>,
|
||
|
||
surface: Surface,
|
||
|
||
mask_phase: RenderPhase<TileInView>,
|
||
tile_phase: RenderPhase<(IndexEntry, TileShape)>,
|
||
}
|
||
|
||
<span class="kw">impl </span>RenderState {
|
||
<span class="kw">pub fn </span>new(surface: Surface) -> <span class="self">Self </span>{
|
||
<span class="self">Self </span>{
|
||
render_target: Default::default(),
|
||
buffer_pool: Default::default(),
|
||
tile_view_pattern: Default::default(),
|
||
tile_pipeline: Default::default(),
|
||
mask_pipeline: Default::default(),
|
||
globals_bind_group: Default::default(),
|
||
depth_texture: Default::default(),
|
||
multisampling_texture: Default::default(),
|
||
surface,
|
||
mask_phase: Default::default(),
|
||
tile_phase: Default::default(),
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub fn </span>recreate_surface<MW>(<span class="kw-2">&mut </span><span class="self">self</span>, window: <span class="kw-2">&</span>MW, instance: <span class="kw-2">&</span>wgpu::Instance)
|
||
<span class="kw">where
|
||
</span>MW: MapWindow + HeadedMapWindow,
|
||
{
|
||
<span class="self">self</span>.surface.recreate::<MW>(window, instance);
|
||
}
|
||
|
||
<span class="kw">pub fn </span>surface(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>Surface {
|
||
<span class="kw-2">&</span><span class="self">self</span>.surface
|
||
}
|
||
|
||
<span class="kw">pub fn </span>buffer_pool_mut(
|
||
<span class="kw-2">&mut </span><span class="self">self</span>,
|
||
) -> <span class="kw-2">&mut </span>Eventually<
|
||
BufferPool<
|
||
wgpu::Queue,
|
||
wgpu::Buffer,
|
||
ShaderVertex,
|
||
IndexDataType,
|
||
ShaderLayerMetadata,
|
||
ShaderFeatureStyle,
|
||
>,
|
||
> {
|
||
<span class="kw-2">&mut </span><span class="self">self</span>.buffer_pool
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub struct </span>Renderer {
|
||
<span class="kw">pub </span>instance: wgpu::Instance,
|
||
<span class="kw">pub </span>device: Arc<wgpu::Device>, <span class="comment">// TODO: Arc is needed for headless rendering. Is there a simpler solution?
|
||
</span><span class="kw">pub </span>queue: wgpu::Queue,
|
||
<span class="kw">pub </span>adapter_info: wgpu::AdapterInfo,
|
||
|
||
<span class="kw">pub </span>wgpu_settings: WgpuSettings,
|
||
<span class="kw">pub </span>settings: RendererSettings,
|
||
|
||
<span class="kw">pub </span>state: RenderState,
|
||
}
|
||
|
||
<span class="kw">impl </span>Renderer {
|
||
<span class="doccomment">/// Initializes the renderer by retrieving and preparing the GPU instance, device and queue
|
||
/// for the specified backend.
|
||
</span><span class="kw">pub async fn </span>initialize<MW>(
|
||
window: <span class="kw-2">&</span>MW,
|
||
wgpu_settings: WgpuSettings,
|
||
settings: RendererSettings,
|
||
) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, wgpu::RequestDeviceError>
|
||
<span class="kw">where
|
||
</span>MW: MapWindow + HeadedMapWindow,
|
||
{
|
||
<span class="kw">let </span>instance = wgpu::Instance::new(wgpu_settings.backends.unwrap_or(wgpu::Backends::all()));
|
||
|
||
<span class="kw">let </span>surface = Surface::from_window(<span class="kw-2">&</span>instance, window, <span class="kw-2">&</span>settings);
|
||
|
||
<span class="kw">let </span>compatible_surface = <span class="kw">match </span><span class="kw-2">&</span>surface.head() {
|
||
Head::Headed(window_head) => <span class="prelude-val">Some</span>(window_head.surface()),
|
||
Head::Headless(<span class="kw">_</span>) => <span class="prelude-val">None</span>,
|
||
};
|
||
|
||
<span class="kw">let </span>(device, queue, adapter_info) = <span class="self">Self</span>::request_device(
|
||
<span class="kw-2">&</span>instance,
|
||
<span class="kw-2">&</span>wgpu_settings,
|
||
<span class="kw-2">&</span>wgpu::RequestAdapterOptions {
|
||
power_preference: wgpu_settings.power_preference,
|
||
force_fallback_adapter: <span class="bool-val">false</span>,
|
||
compatible_surface,
|
||
},
|
||
)
|
||
.<span class="kw">await</span><span class="question-mark">?</span>;
|
||
|
||
<span class="kw">match </span>surface.head() {
|
||
Head::Headed(window) => window.configure(<span class="kw-2">&</span>device),
|
||
Head::Headless(<span class="kw">_</span>) => {}
|
||
}
|
||
|
||
<span class="prelude-val">Ok</span>(<span class="self">Self </span>{
|
||
instance,
|
||
device: Arc::new(device),
|
||
queue,
|
||
adapter_info,
|
||
wgpu_settings,
|
||
settings,
|
||
state: RenderState::new(surface),
|
||
})
|
||
}
|
||
|
||
<span class="kw">pub async fn </span>initialize_headless<MW>(
|
||
window: <span class="kw-2">&</span>MW,
|
||
wgpu_settings: WgpuSettings,
|
||
settings: RendererSettings,
|
||
) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, wgpu::RequestDeviceError>
|
||
<span class="kw">where
|
||
</span>MW: MapWindow,
|
||
{
|
||
<span class="kw">let </span>instance = wgpu::Instance::new(wgpu_settings.backends.unwrap_or(wgpu::Backends::all()));
|
||
|
||
<span class="kw">let </span>(device, queue, adapter_info) = <span class="self">Self</span>::request_device(
|
||
<span class="kw-2">&</span>instance,
|
||
<span class="kw-2">&</span>wgpu_settings,
|
||
<span class="kw-2">&</span>wgpu::RequestAdapterOptions {
|
||
power_preference: wgpu_settings.power_preference,
|
||
force_fallback_adapter: <span class="bool-val">false</span>,
|
||
compatible_surface: <span class="prelude-val">None</span>,
|
||
},
|
||
)
|
||
.<span class="kw">await</span><span class="question-mark">?</span>;
|
||
|
||
<span class="kw">let </span>surface = Surface::from_image(<span class="kw-2">&</span>device, window, <span class="kw-2">&</span>settings);
|
||
|
||
<span class="prelude-val">Ok</span>(<span class="self">Self </span>{
|
||
instance,
|
||
device: Arc::new(device),
|
||
queue,
|
||
adapter_info,
|
||
wgpu_settings,
|
||
settings,
|
||
state: RenderState::new(surface),
|
||
})
|
||
}
|
||
|
||
<span class="kw">pub fn </span>resize(<span class="kw-2">&mut </span><span class="self">self</span>, width: u32, height: u32) {
|
||
<span class="self">self</span>.state.surface.resize(width, height)
|
||
}
|
||
|
||
<span class="doccomment">/// Requests a device
|
||
</span><span class="kw">async fn </span>request_device(
|
||
instance: <span class="kw-2">&</span>wgpu::Instance,
|
||
settings: <span class="kw-2">&</span>WgpuSettings,
|
||
request_adapter_options: <span class="kw-2">&</span>wgpu::RequestAdapterOptions<<span class="lifetime">'_</span>>,
|
||
) -> <span class="prelude-ty">Result</span><(wgpu::Device, wgpu::Queue, wgpu::AdapterInfo), wgpu::RequestDeviceError> {
|
||
<span class="kw">let </span>adapter = instance
|
||
.request_adapter(request_adapter_options)
|
||
.<span class="kw">await
|
||
</span>.expect(<span class="string">"Unable to find a GPU! Make sure you have installed required drivers!"</span>);
|
||
|
||
<span class="kw">let </span>adapter_info = adapter.get_info();
|
||
<span class="macro">info!</span>(<span class="string">"{:?}"</span>, adapter_info);
|
||
|
||
<span class="attribute">#[cfg(not(target_arch = <span class="string">"wasm32"</span>))]
|
||
</span><span class="kw">let </span>trace_path = <span class="kw">if </span>settings.record_trace {
|
||
<span class="kw">let </span>path = std::path::Path::new(<span class="string">"wgpu_trace"</span>);
|
||
<span class="comment">// ignore potential error, wgpu will log it
|
||
</span><span class="kw">let _ </span>= std::fs::create_dir(path);
|
||
<span class="prelude-val">Some</span>(path)
|
||
} <span class="kw">else </span>{
|
||
<span class="prelude-val">None
|
||
</span>};
|
||
|
||
<span class="attribute">#[cfg(target_arch = <span class="string">"wasm32"</span>)]
|
||
</span><span class="kw">let </span>trace_path = <span class="prelude-val">None</span>;
|
||
|
||
<span class="kw">let </span><span class="kw-2">mut </span>features =
|
||
adapter.features() | wgpu::Features::TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES;
|
||
<span class="kw">if </span>adapter_info.device_type == wgpu::DeviceType::DiscreteGpu {
|
||
<span class="comment">// `MAPPABLE_PRIMARY_BUFFERS` can have a significant, negative performance impact for
|
||
// discrete GPUs due to having to transfer data across the PCI-E bus and so it
|
||
// should not be automatically enabled in this case. It is however beneficial for
|
||
// integrated GPUs.
|
||
</span>features -= wgpu::Features::MAPPABLE_PRIMARY_BUFFERS;
|
||
}
|
||
<span class="kw">let </span><span class="kw-2">mut </span>limits = adapter.limits();
|
||
|
||
<span class="comment">// Enforce the disabled features
|
||
</span><span class="kw">if let </span><span class="prelude-val">Some</span>(disabled_features) = settings.disabled_features {
|
||
features -= disabled_features;
|
||
}
|
||
<span class="comment">// NOTE: |= is used here to ensure that any explicitly-enabled features are respected.
|
||
</span>features |= settings.features;
|
||
|
||
<span class="comment">// Enforce the limit constraints
|
||
</span><span class="kw">if let </span><span class="prelude-val">Some</span>(constrained_limits) = settings.constrained_limits.as_ref() {
|
||
<span class="comment">// NOTE: Respect the configured limits as an 'upper bound'. This means for 'max' limits, we
|
||
// take the minimum of the calculated limits according to the adapter/backend and the
|
||
// specified max_limits. For 'min' limits, take the maximum instead. This is intended to
|
||
// err on the side of being conservative. We can't claim 'higher' limits that are supported
|
||
// but we can constrain to 'lower' limits.
|
||
</span>limits = wgpu::Limits {
|
||
max_texture_dimension_1d: limits
|
||
.max_texture_dimension_1d
|
||
.min(constrained_limits.max_texture_dimension_1d),
|
||
max_texture_dimension_2d: limits
|
||
.max_texture_dimension_2d
|
||
.min(constrained_limits.max_texture_dimension_2d),
|
||
max_texture_dimension_3d: limits
|
||
.max_texture_dimension_3d
|
||
.min(constrained_limits.max_texture_dimension_3d),
|
||
max_texture_array_layers: limits
|
||
.max_texture_array_layers
|
||
.min(constrained_limits.max_texture_array_layers),
|
||
max_bind_groups: limits
|
||
.max_bind_groups
|
||
.min(constrained_limits.max_bind_groups),
|
||
max_dynamic_uniform_buffers_per_pipeline_layout: limits
|
||
.max_dynamic_uniform_buffers_per_pipeline_layout
|
||
.min(constrained_limits.max_dynamic_uniform_buffers_per_pipeline_layout),
|
||
max_dynamic_storage_buffers_per_pipeline_layout: limits
|
||
.max_dynamic_storage_buffers_per_pipeline_layout
|
||
.min(constrained_limits.max_dynamic_storage_buffers_per_pipeline_layout),
|
||
max_sampled_textures_per_shader_stage: limits
|
||
.max_sampled_textures_per_shader_stage
|
||
.min(constrained_limits.max_sampled_textures_per_shader_stage),
|
||
max_samplers_per_shader_stage: limits
|
||
.max_samplers_per_shader_stage
|
||
.min(constrained_limits.max_samplers_per_shader_stage),
|
||
max_storage_buffers_per_shader_stage: limits
|
||
.max_storage_buffers_per_shader_stage
|
||
.min(constrained_limits.max_storage_buffers_per_shader_stage),
|
||
max_storage_textures_per_shader_stage: limits
|
||
.max_storage_textures_per_shader_stage
|
||
.min(constrained_limits.max_storage_textures_per_shader_stage),
|
||
max_uniform_buffers_per_shader_stage: limits
|
||
.max_uniform_buffers_per_shader_stage
|
||
.min(constrained_limits.max_uniform_buffers_per_shader_stage),
|
||
max_uniform_buffer_binding_size: limits
|
||
.max_uniform_buffer_binding_size
|
||
.min(constrained_limits.max_uniform_buffer_binding_size),
|
||
max_storage_buffer_binding_size: limits
|
||
.max_storage_buffer_binding_size
|
||
.min(constrained_limits.max_storage_buffer_binding_size),
|
||
max_vertex_buffers: limits
|
||
.max_vertex_buffers
|
||
.min(constrained_limits.max_vertex_buffers),
|
||
max_vertex_attributes: limits
|
||
.max_vertex_attributes
|
||
.min(constrained_limits.max_vertex_attributes),
|
||
max_vertex_buffer_array_stride: limits
|
||
.max_vertex_buffer_array_stride
|
||
.min(constrained_limits.max_vertex_buffer_array_stride),
|
||
max_push_constant_size: limits
|
||
.max_push_constant_size
|
||
.min(constrained_limits.max_push_constant_size),
|
||
min_uniform_buffer_offset_alignment: limits
|
||
.min_uniform_buffer_offset_alignment
|
||
.max(constrained_limits.min_uniform_buffer_offset_alignment),
|
||
min_storage_buffer_offset_alignment: limits
|
||
.min_storage_buffer_offset_alignment
|
||
.max(constrained_limits.min_storage_buffer_offset_alignment),
|
||
max_inter_stage_shader_components: limits
|
||
.max_inter_stage_shader_components
|
||
.min(constrained_limits.max_inter_stage_shader_components),
|
||
max_compute_workgroup_storage_size: limits
|
||
.max_compute_workgroup_storage_size
|
||
.min(constrained_limits.max_compute_workgroup_storage_size),
|
||
max_compute_invocations_per_workgroup: limits
|
||
.max_compute_invocations_per_workgroup
|
||
.min(constrained_limits.max_compute_invocations_per_workgroup),
|
||
max_compute_workgroup_size_x: limits
|
||
.max_compute_workgroup_size_x
|
||
.min(constrained_limits.max_compute_workgroup_size_x),
|
||
max_compute_workgroup_size_y: limits
|
||
.max_compute_workgroup_size_y
|
||
.min(constrained_limits.max_compute_workgroup_size_y),
|
||
max_compute_workgroup_size_z: limits
|
||
.max_compute_workgroup_size_z
|
||
.min(constrained_limits.max_compute_workgroup_size_z),
|
||
max_compute_workgroups_per_dimension: limits
|
||
.max_compute_workgroups_per_dimension
|
||
.min(constrained_limits.max_compute_workgroups_per_dimension),
|
||
max_buffer_size: limits
|
||
.max_buffer_size
|
||
.min(constrained_limits.max_buffer_size),
|
||
};
|
||
}
|
||
|
||
<span class="kw">let </span>(device, queue) = adapter
|
||
.request_device(
|
||
<span class="kw-2">&</span>wgpu::DeviceDescriptor {
|
||
label: settings.device_label.as_ref().map(|a| a.as_ref()),
|
||
features,
|
||
limits,
|
||
},
|
||
trace_path,
|
||
)
|
||
.<span class="kw">await</span><span class="question-mark">?</span>;
|
||
<span class="prelude-val">Ok</span>((device, queue, adapter_info))
|
||
}
|
||
|
||
<span class="kw">pub fn </span>instance(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>wgpu::Instance {
|
||
<span class="kw-2">&</span><span class="self">self</span>.instance
|
||
}
|
||
<span class="kw">pub fn </span>device(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>wgpu::Device {
|
||
<span class="kw-2">&</span><span class="self">self</span>.device
|
||
}
|
||
<span class="kw">pub fn </span>queue(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>wgpu::Queue {
|
||
<span class="kw-2">&</span><span class="self">self</span>.queue
|
||
}
|
||
<span class="kw">pub fn </span>state(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>RenderState {
|
||
<span class="kw-2">&</span><span class="self">self</span>.state
|
||
}
|
||
<span class="kw">pub fn </span>surface(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>Surface {
|
||
<span class="kw-2">&</span><span class="self">self</span>.state.surface
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[cfg(test)]
|
||
</span><span class="kw">mod </span>tests {
|
||
<span class="kw">use </span><span class="kw">crate</span>::window::{MapWindow, MapWindowConfig, WindowSize};
|
||
|
||
<span class="kw">pub struct </span>HeadlessMapWindowConfig {
|
||
size: WindowSize,
|
||
}
|
||
|
||
<span class="kw">impl </span>MapWindowConfig <span class="kw">for </span>HeadlessMapWindowConfig {
|
||
<span class="kw">type </span>MapWindow = HeadlessMapWindow;
|
||
|
||
<span class="kw">fn </span>create(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self</span>::MapWindow {
|
||
<span class="self">Self</span>::MapWindow { size: <span class="self">self</span>.size }
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub struct </span>HeadlessMapWindow {
|
||
size: WindowSize,
|
||
}
|
||
|
||
<span class="kw">impl </span>MapWindow <span class="kw">for </span>HeadlessMapWindow {
|
||
<span class="kw">fn </span>size(<span class="kw-2">&</span><span class="self">self</span>) -> WindowSize {
|
||
<span class="self">self</span>.size
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[cfg(not(target_arch = <span class="string">"wasm32"</span>))]
|
||
#[tokio::test]
|
||
</span><span class="kw">async fn </span>test_render() {
|
||
<span class="kw">use </span>log::LevelFilter;
|
||
|
||
<span class="kw">use </span><span class="kw">crate</span>::render::{
|
||
graph::RenderGraph, graph_runner::RenderGraphRunner, resource::Surface, RenderState,
|
||
RendererSettings,
|
||
};
|
||
|
||
<span class="kw">let _ </span>= env_logger::builder()
|
||
.filter_level(LevelFilter::Trace)
|
||
.is_test(<span class="bool-val">true</span>)
|
||
.try_init();
|
||
<span class="kw">let </span>graph = RenderGraph::default();
|
||
|
||
<span class="kw">let </span>backends = wgpu::util::backend_bits_from_env().unwrap_or(wgpu::Backends::all());
|
||
<span class="kw">let </span>instance = wgpu::Instance::new(backends);
|
||
<span class="kw">let </span>adapter = wgpu::util::initialize_adapter_from_env_or_default(<span class="kw-2">&</span>instance, backends, <span class="prelude-val">None</span>)
|
||
.<span class="kw">await
|
||
</span>.unwrap();
|
||
|
||
<span class="kw">let </span>(device, queue) = adapter
|
||
.request_device(
|
||
<span class="kw-2">&</span>wgpu::DeviceDescriptor {
|
||
label: <span class="prelude-val">None</span>,
|
||
features: wgpu::Features::default(),
|
||
limits: wgpu::Limits::default(),
|
||
},
|
||
<span class="prelude-val">None</span>,
|
||
)
|
||
.<span class="kw">await
|
||
</span>.ok()
|
||
.unwrap();
|
||
|
||
<span class="kw">let </span>render_state = RenderState::new(Surface::from_image(
|
||
<span class="kw-2">&</span>device,
|
||
<span class="kw-2">&</span>HeadlessMapWindow {
|
||
size: WindowSize::new(<span class="number">100</span>, <span class="number">100</span>).unwrap(),
|
||
},
|
||
<span class="kw-2">&</span>RendererSettings::default(),
|
||
));
|
||
|
||
RenderGraphRunner::run(<span class="kw-2">&</span>graph, <span class="kw-2">&</span>device, <span class="kw-2">&</span>queue, <span class="kw-2">&</span>render_state).unwrap();
|
||
}
|
||
}
|
||
|
||
<span class="comment">// Contributors to the RenderGraph should use the following label conventions:
|
||
// 1. Graph modules should have a NAME, input module, and node module (where relevant)
|
||
// 2. The "main_graph" graph is the root.
|
||
// 3. "sub graph" modules should be nested beneath their parent graph module
|
||
</span><span class="kw">pub mod </span>main_graph {
|
||
<span class="comment">// Labels for input nodes
|
||
</span><span class="kw">pub mod </span>input {}
|
||
<span class="comment">// Labels for non-input nodes
|
||
</span><span class="kw">pub mod </span>node {
|
||
<span class="kw">pub const </span>MAIN_PASS_DEPENDENCIES: <span class="kw-2">&</span>str = <span class="string">"main_pass_dependencies"</span>;
|
||
<span class="kw">pub const </span>MAIN_PASS_DRIVER: <span class="kw-2">&</span>str = <span class="string">"main_pass_driver"</span>;
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Labels for the "draw" graph
|
||
</span><span class="kw">pub mod </span>draw_graph {
|
||
<span class="kw">pub const </span>NAME: <span class="kw-2">&</span>str = <span class="string">"draw"</span>;
|
||
<span class="comment">// Labels for input nodes
|
||
</span><span class="kw">pub mod </span>input {}
|
||
<span class="comment">// Labels for non-input nodes
|
||
</span><span class="kw">pub mod </span>node {
|
||
<span class="kw">pub const </span>MAIN_PASS: <span class="kw-2">&</span>str = <span class="string">"main_pass"</span>;
|
||
<span class="attribute">#[cfg(feature = <span class="string">"headless"</span>)]
|
||
</span><span class="kw">pub const </span>COPY: <span class="kw-2">&</span>str = <span class="string">"copy"</span>;
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub fn </span>create_default_render_graph() -> <span class="prelude-ty">Result</span><RenderGraph, RenderGraphError> {
|
||
<span class="kw">let </span><span class="kw-2">mut </span>graph = RenderGraph::default();
|
||
|
||
<span class="kw">let </span><span class="kw-2">mut </span>draw_graph = RenderGraph::default();
|
||
draw_graph.add_node(draw_graph::node::MAIN_PASS, MainPassNode::new());
|
||
<span class="kw">let </span>input_node_id = draw_graph.set_input(<span class="macro">vec!</span>[]);
|
||
draw_graph.add_node_edge(input_node_id, draw_graph::node::MAIN_PASS)<span class="question-mark">?</span>;
|
||
|
||
graph.add_sub_graph(draw_graph::NAME, draw_graph);
|
||
graph.add_node(main_graph::node::MAIN_PASS_DEPENDENCIES, EmptyNode);
|
||
graph.add_node(main_graph::node::MAIN_PASS_DRIVER, MainPassDriverNode);
|
||
graph.add_node_edge(
|
||
main_graph::node::MAIN_PASS_DEPENDENCIES,
|
||
main_graph::node::MAIN_PASS_DRIVER,
|
||
)<span class="question-mark">?</span>;
|
||
|
||
<span class="prelude-val">Ok</span>(graph)
|
||
}
|
||
</code></pre></div>
|
||
</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="maplibre" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.65.0 (897e37553 2022-11-02)" ></div></body></html> |