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|
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</pre><pre class="rust"><code><span class="doccomment">//! A ring-buffer like pool of [buffers](wgpu::Buffer).</span>
|
||
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::coords</span>::{<span class="ident">Quadkey</span>, <span class="ident">WorldTileCoords</span>};
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::render::resource::Queue</span>;
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::style::layer::StyleLayer</span>;
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::tessellation::OverAlignedVertexBuffer</span>;
|
||
<span class="kw">use</span> <span class="ident">bytemuck::Pod</span>;
|
||
<span class="kw">use</span> <span class="ident">std::collections</span>::{<span class="ident">btree_map</span>, <span class="ident">BTreeMap</span>, <span class="ident">HashSet</span>, <span class="ident">VecDeque</span>};
|
||
<span class="kw">use</span> <span class="ident">std::fmt::Debug</span>;
|
||
<span class="kw">use</span> <span class="ident">std::marker::PhantomData</span>;
|
||
<span class="kw">use</span> <span class="ident">std::mem::size_of</span>;
|
||
<span class="kw">use</span> <span class="ident">std::ops::Range</span>;
|
||
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="ident">VERTEX_SIZE</span>: <span class="ident">wgpu::BufferAddress</span> <span class="op">=</span> <span class="number">1_000_000</span>;
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="ident">INDICES_SIZE</span>: <span class="ident">wgpu::BufferAddress</span> <span class="op">=</span> <span class="number">1_000_000</span>;
|
||
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="ident">FEATURE_METADATA_SIZE</span>: <span class="ident">wgpu::BufferAddress</span> <span class="op">=</span> <span class="number">1024</span> <span class="op">*</span> <span class="number">1000</span>;
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="ident">LAYER_METADATA_SIZE</span>: <span class="ident">wgpu::BufferAddress</span> <span class="op">=</span> <span class="number">1024</span>;
|
||
|
||
<span class="doccomment">/// This is inspired by the memory pool in Vulkan documented</span>
|
||
<span class="doccomment">/// [here](https://gpuopen-librariesandsdks.github.io/VulkanMemoryAllocator/html/custom_memory_pools.html).</span>
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">BufferPool</span><span class="op"><</span><span class="ident">Q</span>, <span class="ident">B</span>, <span class="ident">V</span>, <span class="ident">I</span>, <span class="ident">TM</span>, <span class="ident">FM</span><span class="op">></span> {
|
||
<span class="ident">vertices</span>: <span class="ident">BackingBuffer</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
<span class="ident">indices</span>: <span class="ident">BackingBuffer</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
<span class="ident">layer_metadata</span>: <span class="ident">BackingBuffer</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
<span class="ident">feature_metadata</span>: <span class="ident">BackingBuffer</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
|
||
<span class="ident">index</span>: <span class="ident">RingIndex</span>,
|
||
<span class="ident">phantom_v</span>: <span class="ident">PhantomData</span><span class="op"><</span><span class="ident">V</span><span class="op">></span>,
|
||
<span class="ident">phantom_i</span>: <span class="ident">PhantomData</span><span class="op"><</span><span class="ident">I</span><span class="op">></span>,
|
||
<span class="ident">phantom_q</span>: <span class="ident">PhantomData</span><span class="op"><</span><span class="ident">Q</span><span class="op">></span>,
|
||
<span class="ident">phantom_m</span>: <span class="ident">PhantomData</span><span class="op"><</span><span class="ident">TM</span><span class="op">></span>,
|
||
<span class="ident">phantom_fm</span>: <span class="ident">PhantomData</span><span class="op"><</span><span class="ident">FM</span><span class="op">></span>,
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">enum</span> <span class="ident">BackingBufferType</span> {
|
||
<span class="ident">Vertices</span>,
|
||
<span class="ident">Indices</span>,
|
||
<span class="ident">Metadata</span>,
|
||
<span class="ident">FeatureMetadata</span>,
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">V</span>: <span class="ident">Pod</span>, <span class="ident">I</span>: <span class="ident">Pod</span>, <span class="ident">TM</span>: <span class="ident">Pod</span>, <span class="ident">FM</span>: <span class="ident">Pod</span><span class="op">></span> <span class="ident">BufferPool</span><span class="op"><</span><span class="ident">wgpu::Queue</span>, <span class="ident">wgpu::Buffer</span>, <span class="ident">V</span>, <span class="ident">I</span>, <span class="ident">TM</span>, <span class="ident">FM</span><span class="op">></span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">from_device</span>(<span class="ident">device</span>: <span class="kw-2">&</span><span class="ident">wgpu::Device</span>) -> <span class="self">Self</span> {
|
||
<span class="kw">let</span> <span class="ident">vertex_buffer_desc</span> <span class="op">=</span> <span class="ident">wgpu::BufferDescriptor</span> {
|
||
<span class="ident">label</span>: <span class="prelude-val">Some</span>(<span class="string">"vertex buffer"</span>),
|
||
<span class="ident">size</span>: <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">V</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span> <span class="op">*</span> <span class="ident">VERTEX_SIZE</span>,
|
||
<span class="ident">usage</span>: <span class="ident">wgpu::BufferUsages::VERTEX</span> <span class="op">|</span> <span class="ident">wgpu::BufferUsages::COPY_DST</span>,
|
||
<span class="ident">mapped_at_creation</span>: <span class="bool-val">false</span>,
|
||
};
|
||
|
||
<span class="kw">let</span> <span class="ident">indices_buffer_desc</span> <span class="op">=</span> <span class="ident">wgpu::BufferDescriptor</span> {
|
||
<span class="ident">label</span>: <span class="prelude-val">Some</span>(<span class="string">"indices buffer"</span>),
|
||
<span class="ident">size</span>: <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">I</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span> <span class="op">*</span> <span class="ident">INDICES_SIZE</span>,
|
||
<span class="ident">usage</span>: <span class="ident">wgpu::BufferUsages::INDEX</span> <span class="op">|</span> <span class="ident">wgpu::BufferUsages::COPY_DST</span>,
|
||
<span class="ident">mapped_at_creation</span>: <span class="bool-val">false</span>,
|
||
};
|
||
|
||
<span class="kw">let</span> <span class="ident">feature_metadata_desc</span> <span class="op">=</span> <span class="ident">wgpu::BufferDescriptor</span> {
|
||
<span class="ident">label</span>: <span class="prelude-val">Some</span>(<span class="string">"feature metadata buffer"</span>),
|
||
<span class="ident">size</span>: <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">FM</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span> <span class="op">*</span> <span class="ident">FEATURE_METADATA_SIZE</span>,
|
||
<span class="ident">usage</span>: <span class="ident">wgpu::BufferUsages::VERTEX</span> <span class="op">|</span> <span class="ident">wgpu::BufferUsages::COPY_DST</span>,
|
||
<span class="ident">mapped_at_creation</span>: <span class="bool-val">false</span>,
|
||
};
|
||
|
||
<span class="kw">let</span> <span class="ident">layer_metadata_desc</span> <span class="op">=</span> <span class="ident">wgpu::BufferDescriptor</span> {
|
||
<span class="ident">label</span>: <span class="prelude-val">Some</span>(<span class="string">"layer metadata buffer"</span>),
|
||
<span class="ident">size</span>: <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">TM</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span> <span class="op">*</span> <span class="ident">LAYER_METADATA_SIZE</span>,
|
||
<span class="ident">usage</span>: <span class="ident">wgpu::BufferUsages::VERTEX</span> <span class="op">|</span> <span class="ident">wgpu::BufferUsages::COPY_DST</span>,
|
||
<span class="ident">mapped_at_creation</span>: <span class="bool-val">false</span>,
|
||
};
|
||
|
||
<span class="ident">BufferPool::new</span>(
|
||
<span class="ident">BackingBufferDescriptor::new</span>(
|
||
<span class="ident">device</span>.<span class="ident">create_buffer</span>(<span class="kw-2">&</span><span class="ident">vertex_buffer_desc</span>),
|
||
<span class="ident">vertex_buffer_desc</span>.<span class="ident">size</span>,
|
||
),
|
||
<span class="ident">BackingBufferDescriptor::new</span>(
|
||
<span class="ident">device</span>.<span class="ident">create_buffer</span>(<span class="kw-2">&</span><span class="ident">indices_buffer_desc</span>),
|
||
<span class="ident">indices_buffer_desc</span>.<span class="ident">size</span>,
|
||
),
|
||
<span class="ident">BackingBufferDescriptor::new</span>(
|
||
<span class="ident">device</span>.<span class="ident">create_buffer</span>(<span class="kw-2">&</span><span class="ident">layer_metadata_desc</span>),
|
||
<span class="ident">layer_metadata_desc</span>.<span class="ident">size</span>,
|
||
),
|
||
<span class="ident">BackingBufferDescriptor::new</span>(
|
||
<span class="ident">device</span>.<span class="ident">create_buffer</span>(<span class="kw-2">&</span><span class="ident">feature_metadata_desc</span>),
|
||
<span class="ident">feature_metadata_desc</span>.<span class="ident">size</span>,
|
||
),
|
||
)
|
||
}
|
||
}
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">Q</span>: <span class="ident">Queue</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>, <span class="ident">B</span>, <span class="ident">V</span>: <span class="ident">Pod</span>, <span class="ident">I</span>: <span class="ident">Pod</span>, <span class="ident">TM</span>: <span class="ident">Pod</span>, <span class="ident">FM</span>: <span class="ident">Pod</span><span class="op">></span> <span class="ident">BufferPool</span><span class="op"><</span><span class="ident">Q</span>, <span class="ident">B</span>, <span class="ident">V</span>, <span class="ident">I</span>, <span class="ident">TM</span>, <span class="ident">FM</span><span class="op">></span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(
|
||
<span class="ident">vertices</span>: <span class="ident">BackingBufferDescriptor</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
<span class="ident">indices</span>: <span class="ident">BackingBufferDescriptor</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
<span class="ident">layer_metadata</span>: <span class="ident">BackingBufferDescriptor</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
<span class="ident">feature_metadata</span>: <span class="ident">BackingBufferDescriptor</span><span class="op"><</span><span class="ident">B</span><span class="op">></span>,
|
||
) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> {
|
||
<span class="ident">vertices</span>: <span class="ident">BackingBuffer::new</span>(
|
||
<span class="ident">vertices</span>.<span class="ident">buffer</span>,
|
||
<span class="ident">vertices</span>.<span class="ident">inner_size</span>,
|
||
<span class="ident">BackingBufferType::Vertices</span>,
|
||
),
|
||
<span class="ident">indices</span>: <span class="ident">BackingBuffer::new</span>(
|
||
<span class="ident">indices</span>.<span class="ident">buffer</span>,
|
||
<span class="ident">indices</span>.<span class="ident">inner_size</span>,
|
||
<span class="ident">BackingBufferType::Indices</span>,
|
||
),
|
||
<span class="ident">layer_metadata</span>: <span class="ident">BackingBuffer::new</span>(
|
||
<span class="ident">layer_metadata</span>.<span class="ident">buffer</span>,
|
||
<span class="ident">layer_metadata</span>.<span class="ident">inner_size</span>,
|
||
<span class="ident">BackingBufferType::Metadata</span>,
|
||
),
|
||
<span class="ident">feature_metadata</span>: <span class="ident">BackingBuffer::new</span>(
|
||
<span class="ident">feature_metadata</span>.<span class="ident">buffer</span>,
|
||
<span class="ident">feature_metadata</span>.<span class="ident">inner_size</span>,
|
||
<span class="ident">BackingBufferType::FeatureMetadata</span>,
|
||
),
|
||
<span class="ident">index</span>: <span class="ident">RingIndex::new</span>(),
|
||
<span class="ident">phantom_v</span>: <span class="ident">Default::default</span>(),
|
||
<span class="ident">phantom_i</span>: <span class="ident">Default::default</span>(),
|
||
<span class="ident">phantom_q</span>: <span class="ident">Default::default</span>(),
|
||
<span class="ident">phantom_m</span>: <span class="ident">Default::default</span>(),
|
||
<span class="ident">phantom_fm</span>: <span class="ident">Default::default</span>(),
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
|
||
<span class="kw">fn</span> <span class="ident">available_space</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">typ</span>: <span class="ident">BackingBufferType</span>) -> <span class="ident">wgpu::BufferAddress</span> {
|
||
<span class="kw">let</span> <span class="ident">gap</span> <span class="op">=</span> <span class="kw">match</span> <span class="ident">typ</span> {
|
||
<span class="ident">BackingBufferType::Vertices</span> => <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">vertices</span>,
|
||
<span class="ident">BackingBufferType::Indices</span> => <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">indices</span>,
|
||
<span class="ident">BackingBufferType::Metadata</span> => <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">layer_metadata</span>,
|
||
<span class="ident">BackingBufferType::FeatureMetadata</span> => <span class="kw-2">&</span><span class="self">self</span>.<span class="ident">feature_metadata</span>,
|
||
}
|
||
.<span class="ident">find_largest_gap</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">index</span>);
|
||
|
||
<span class="ident">gap</span>.<span class="ident">end</span> <span class="op">-</span> <span class="ident">gap</span>.<span class="ident">start</span>
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">vertices</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">B</span> {
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">vertices</span>.<span class="ident">inner</span>
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">indices</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">B</span> {
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">indices</span>.<span class="ident">inner</span>
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">metadata</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">B</span> {
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">layer_metadata</span>.<span class="ident">inner</span>
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">feature_metadata</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">B</span> {
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">feature_metadata</span>.<span class="ident">inner</span>
|
||
}
|
||
|
||
<span class="doccomment">/// The VertexBuffers can contain padding elements. Not everything from a VertexBuffers is useable.</span>
|
||
<span class="doccomment">/// The function returns the `bytes` and `aligned_bytes`. See [`OverAlignedVertexBuffer`].</span>
|
||
<span class="kw">fn</span> <span class="ident">align</span>(
|
||
<span class="ident">stride</span>: <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">elements</span>: <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">usable_elements</span>: <span class="ident">wgpu::BufferAddress</span>,
|
||
) -> (<span class="ident">wgpu::BufferAddress</span>, <span class="ident">wgpu::BufferAddress</span>) {
|
||
<span class="kw">let</span> <span class="ident">bytes</span> <span class="op">=</span> <span class="ident">elements</span> <span class="op">*</span> <span class="ident">stride</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">usable_bytes</span> <span class="op">=</span> (<span class="ident">usable_elements</span> <span class="op">*</span> <span class="ident">stride</span>) <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">align</span> <span class="op">=</span> <span class="ident">wgpu::COPY_BUFFER_ALIGNMENT</span>;
|
||
<span class="kw">let</span> <span class="ident">padding</span> <span class="op">=</span> (<span class="ident">align</span> <span class="op">-</span> <span class="ident">usable_bytes</span> <span class="op">%</span> <span class="ident">align</span>) <span class="op">%</span> <span class="ident">align</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">aligned_bytes</span> <span class="op">=</span> <span class="ident">usable_bytes</span> <span class="op">+</span> <span class="ident">padding</span>;
|
||
|
||
(<span class="ident">bytes</span>, <span class="ident">aligned_bytes</span>)
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_loaded_layers_at</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">coords</span>: <span class="kw-2">&</span><span class="ident">WorldTileCoords</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">HashSet</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">str</span><span class="op">></span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">index</span>.<span class="ident">get_layers</span>(<span class="ident">coords</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">layers</span><span class="op">|</span> {
|
||
<span class="ident">layers</span>
|
||
.<span class="ident">iter</span>()
|
||
.<span class="ident">map</span>(<span class="op">|</span><span class="ident">entry</span><span class="op">|</span> <span class="ident">entry</span>.<span class="ident">style_layer</span>.<span class="ident">source_layer</span>.<span class="ident">as_ref</span>().<span class="ident">unwrap</span>().<span class="ident">as_str</span>())
|
||
.<span class="ident">collect</span>()
|
||
})
|
||
}
|
||
|
||
<span class="doccomment">/// Allocates</span>
|
||
<span class="doccomment">/// * `geometry`</span>
|
||
<span class="doccomment">/// * `layer_metadata` and</span>
|
||
<span class="doccomment">/// * `feature_metadata` for a layer. This function is able to dynamically evict layers if there</span>
|
||
<span class="doccomment">/// is not enough space available.</span>
|
||
<span class="attribute">#[<span class="ident">tracing::instrument</span>(<span class="ident">skip_all</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">allocate_layer_geometry</span>(
|
||
<span class="kw-2">&mut</span> <span class="self">self</span>,
|
||
<span class="ident">queue</span>: <span class="kw-2">&</span><span class="ident">Q</span>,
|
||
<span class="ident">coords</span>: <span class="ident">WorldTileCoords</span>,
|
||
<span class="ident">style_layer</span>: <span class="ident">StyleLayer</span>,
|
||
<span class="ident">geometry</span>: <span class="kw-2">&</span><span class="ident">OverAlignedVertexBuffer</span><span class="op"><</span><span class="ident">V</span>, <span class="ident">I</span><span class="op">></span>,
|
||
<span class="ident">layer_metadata</span>: <span class="ident">TM</span>,
|
||
<span class="ident">feature_metadata</span>: <span class="kw-2">&</span>[<span class="ident">FM</span>],
|
||
) {
|
||
<span class="kw">let</span> <span class="ident">vertices_stride</span> <span class="op">=</span> <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">V</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>;
|
||
<span class="kw">let</span> <span class="ident">indices_stride</span> <span class="op">=</span> <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">I</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>;
|
||
<span class="kw">let</span> <span class="ident">layer_metadata_stride</span> <span class="op">=</span> <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">TM</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>;
|
||
<span class="kw">let</span> <span class="ident">feature_metadata_stride</span> <span class="op">=</span> <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">FM</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>;
|
||
|
||
<span class="kw">let</span> (<span class="ident">vertices_bytes</span>, <span class="ident">aligned_vertices_bytes</span>) <span class="op">=</span> <span class="ident"><span class="self">Self</span>::align</span>(
|
||
<span class="ident">vertices_stride</span>,
|
||
<span class="ident">geometry</span>.<span class="ident">buffer</span>.<span class="ident">vertices</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">geometry</span>.<span class="ident">buffer</span>.<span class="ident">vertices</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
);
|
||
<span class="kw">let</span> (<span class="ident">indices_bytes</span>, <span class="ident">aligned_indices_bytes</span>) <span class="op">=</span> <span class="ident"><span class="self">Self</span>::align</span>(
|
||
<span class="ident">indices_stride</span>,
|
||
<span class="ident">geometry</span>.<span class="ident">buffer</span>.<span class="ident">indices</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">geometry</span>.<span class="ident">usable_indices</span> <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
);
|
||
<span class="kw">let</span> (<span class="ident">layer_metadata_bytes</span>, <span class="ident">aligned_layer_metadata_bytes</span>) <span class="op">=</span>
|
||
<span class="ident"><span class="self">Self</span>::align</span>(<span class="ident">layer_metadata_stride</span>, <span class="number">1</span>, <span class="number">1</span>);
|
||
|
||
<span class="kw">let</span> (<span class="ident">feature_metadata_bytes</span>, <span class="ident">aligned_feature_metadata_bytes</span>) <span class="op">=</span> <span class="ident"><span class="self">Self</span>::align</span>(
|
||
<span class="ident">feature_metadata_stride</span>,
|
||
<span class="ident">feature_metadata</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">feature_metadata</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
);
|
||
|
||
<span class="kw">if</span> <span class="ident">feature_metadata_bytes</span> <span class="op">!</span><span class="op">=</span> <span class="ident">aligned_feature_metadata_bytes</span> {
|
||
<span class="comment">// FIXME: align if not aligned?</span>
|
||
<span class="macro">panic!</span>(
|
||
<span class="string">"feature_metadata is not aligned. This should not happen as long as size_of::<FM>() is a multiple of the alignment."</span>
|
||
)
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="ident">maybe_entry</span> <span class="op">=</span> <span class="ident">IndexEntry</span> {
|
||
<span class="ident">coords</span>,
|
||
<span class="ident">style_layer</span>,
|
||
<span class="ident">buffer_vertices</span>: <span class="self">self</span>.<span class="ident">vertices</span>.<span class="ident">make_room</span>(<span class="ident">vertices_bytes</span>, <span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">index</span>),
|
||
<span class="ident">buffer_indices</span>: <span class="self">self</span>.<span class="ident">indices</span>.<span class="ident">make_room</span>(<span class="ident">indices_bytes</span>, <span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">index</span>),
|
||
<span class="ident">usable_indices</span>: <span class="ident">geometry</span>.<span class="ident">usable_indices</span> <span class="kw">as</span> <span class="ident">u32</span>,
|
||
<span class="ident">buffer_layer_metadata</span>: <span class="self">self</span>
|
||
.<span class="ident">layer_metadata</span>
|
||
.<span class="ident">make_room</span>(<span class="ident">layer_metadata_bytes</span>, <span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">index</span>),
|
||
<span class="ident">buffer_feature_metadata</span>: <span class="self">self</span>
|
||
.<span class="ident">feature_metadata</span>
|
||
.<span class="ident">make_room</span>(<span class="ident">feature_metadata_bytes</span>, <span class="kw-2">&mut</span> <span class="self">self</span>.<span class="ident">index</span>),
|
||
};
|
||
|
||
<span class="comment">// write_buffer() is the preferred method for WASM: https://toji.github.io/webgpu-best-practices/buffer-uploads.html#when-in-doubt-writebuffer</span>
|
||
<span class="ident">queue</span>.<span class="ident">write_buffer</span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">vertices</span>.<span class="ident">inner</span>,
|
||
<span class="ident">maybe_entry</span>.<span class="ident">buffer_vertices</span>.<span class="ident">start</span>,
|
||
<span class="kw-2">&</span><span class="ident">bytemuck::cast_slice</span>(<span class="kw-2">&</span><span class="ident">geometry</span>.<span class="ident">buffer</span>.<span class="ident">vertices</span>)[<span class="number">0</span>..<span class="ident">aligned_vertices_bytes</span> <span class="kw">as</span> <span class="ident">usize</span>],
|
||
);
|
||
|
||
<span class="ident">queue</span>.<span class="ident">write_buffer</span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">indices</span>.<span class="ident">inner</span>,
|
||
<span class="ident">maybe_entry</span>.<span class="ident">buffer_indices</span>.<span class="ident">start</span>,
|
||
<span class="kw-2">&</span><span class="ident">bytemuck::cast_slice</span>(<span class="kw-2">&</span><span class="ident">geometry</span>.<span class="ident">buffer</span>.<span class="ident">indices</span>)[<span class="number">0</span>..<span class="ident">aligned_indices_bytes</span> <span class="kw">as</span> <span class="ident">usize</span>],
|
||
);
|
||
|
||
<span class="ident">queue</span>.<span class="ident">write_buffer</span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">layer_metadata</span>.<span class="ident">inner</span>,
|
||
<span class="ident">maybe_entry</span>.<span class="ident">buffer_layer_metadata</span>.<span class="ident">start</span>,
|
||
<span class="kw-2">&</span><span class="ident">bytemuck::cast_slice</span>(<span class="kw-2">&</span>[<span class="ident">layer_metadata</span>])[<span class="number">0</span>..<span class="ident">aligned_layer_metadata_bytes</span> <span class="kw">as</span> <span class="ident">usize</span>],
|
||
);
|
||
|
||
<span class="ident">queue</span>.<span class="ident">write_buffer</span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">feature_metadata</span>.<span class="ident">inner</span>,
|
||
<span class="ident">maybe_entry</span>.<span class="ident">buffer_feature_metadata</span>.<span class="ident">start</span>,
|
||
<span class="kw-2">&</span><span class="ident">bytemuck::cast_slice</span>(<span class="ident">feature_metadata</span>)[<span class="number">0</span>..<span class="ident">aligned_feature_metadata_bytes</span> <span class="kw">as</span> <span class="ident">usize</span>],
|
||
);
|
||
|
||
<span class="self">self</span>.<span class="ident">index</span>.<span class="ident">push_back</span>(<span class="ident">maybe_entry</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">tracing::instrument</span>(<span class="ident">skip_all</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">update_layer_metadata</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">queue</span>: <span class="kw-2">&</span><span class="ident">Q</span>, <span class="ident">entry</span>: <span class="kw-2">&</span><span class="ident">IndexEntry</span>, <span class="ident">layer_metadata</span>: <span class="ident">TM</span>) {
|
||
<span class="kw">let</span> <span class="ident">layer_metadata_stride</span> <span class="op">=</span> <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">TM</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>; <span class="comment">// TODO: deduplicate</span>
|
||
<span class="kw">let</span> (<span class="ident">layer_metadata_bytes</span>, <span class="ident">aligned_layer_metadata_bytes</span>) <span class="op">=</span>
|
||
<span class="ident"><span class="self">Self</span>::align</span>(<span class="ident">layer_metadata_stride</span>, <span class="number">1</span>, <span class="number">1</span>);
|
||
|
||
<span class="kw">if</span> <span class="ident">entry</span>.<span class="ident">buffer_layer_metadata</span>.<span class="ident">end</span> <span class="op">-</span> <span class="ident">entry</span>.<span class="ident">buffer_layer_metadata</span>.<span class="ident">start</span>
|
||
<span class="op">!</span><span class="op">=</span> <span class="ident">layer_metadata_bytes</span>
|
||
{
|
||
<span class="macro">panic!</span>(<span class="string">"Updated layer metadata has wrong size!"</span>);
|
||
}
|
||
|
||
<span class="ident">queue</span>.<span class="ident">write_buffer</span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">layer_metadata</span>.<span class="ident">inner</span>,
|
||
<span class="ident">entry</span>.<span class="ident">buffer_layer_metadata</span>.<span class="ident">start</span>,
|
||
<span class="kw-2">&</span><span class="ident">bytemuck::cast_slice</span>(<span class="kw-2">&</span>[<span class="ident">layer_metadata</span>])[<span class="number">0</span>..<span class="ident">aligned_layer_metadata_bytes</span> <span class="kw">as</span> <span class="ident">usize</span>],
|
||
);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">tracing::instrument</span>(<span class="ident">skip_all</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">update_feature_metadata</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">queue</span>: <span class="kw-2">&</span><span class="ident">Q</span>, <span class="ident">entry</span>: <span class="kw-2">&</span><span class="ident">IndexEntry</span>, <span class="ident">feature_metadata</span>: <span class="kw-2">&</span>[<span class="ident">FM</span>]) {
|
||
<span class="kw">let</span> <span class="ident">feature_metadata_stride</span> <span class="op">=</span> <span class="ident">size_of</span>::<span class="op"><</span><span class="ident">FM</span><span class="op">></span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>; <span class="comment">// TODO: deduplicate</span>
|
||
|
||
<span class="kw">let</span> (<span class="ident">feature_metadata_bytes</span>, <span class="ident">aligned_feature_metadata_bytes</span>) <span class="op">=</span> <span class="ident"><span class="self">Self</span>::align</span>(
|
||
<span class="ident">feature_metadata_stride</span>,
|
||
<span class="ident">feature_metadata</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">feature_metadata</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span>,
|
||
);
|
||
|
||
<span class="kw">if</span> <span class="ident">entry</span>.<span class="ident">buffer_feature_metadata</span>.<span class="ident">end</span> <span class="op">-</span> <span class="ident">entry</span>.<span class="ident">buffer_feature_metadata</span>.<span class="ident">start</span>
|
||
<span class="op">!</span><span class="op">=</span> <span class="ident">feature_metadata_bytes</span>
|
||
{
|
||
<span class="macro">panic!</span>(<span class="string">"Updated feature metadata has wrong size!"</span>);
|
||
}
|
||
|
||
<span class="kw">if</span> <span class="ident">feature_metadata_bytes</span> <span class="op">!</span><span class="op">=</span> <span class="ident">aligned_feature_metadata_bytes</span> {
|
||
<span class="comment">// FIXME: align if not aligned?</span>
|
||
<span class="macro">panic!</span>(
|
||
<span class="string">"feature_metadata is not aligned. This should not happen as long as size_of::<FM>() is a multiple of the alignment."</span>
|
||
)
|
||
}
|
||
|
||
<span class="ident">queue</span>.<span class="ident">write_buffer</span>(
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">feature_metadata</span>.<span class="ident">inner</span>,
|
||
<span class="ident">entry</span>.<span class="ident">buffer_feature_metadata</span>.<span class="ident">start</span>,
|
||
<span class="kw-2">&</span><span class="ident">bytemuck::cast_slice</span>(<span class="ident">feature_metadata</span>)[<span class="number">0</span>..<span class="ident">aligned_feature_metadata_bytes</span> <span class="kw">as</span> <span class="ident">usize</span>],
|
||
);
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">index</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="ident">RingIndex</span> {
|
||
<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">index</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">BackingBufferDescriptor</span><span class="op"><</span><span class="ident">B</span><span class="op">></span> {
|
||
<span class="doccomment">/// The buffer which is used</span>
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="ident">buffer</span>: <span class="ident">B</span>,
|
||
<span class="doccomment">/// The size of buffer</span>
|
||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="ident">inner_size</span>: <span class="ident">wgpu::BufferAddress</span>,
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">B</span><span class="op">></span> <span class="ident">BackingBufferDescriptor</span><span class="op"><</span><span class="ident">B</span><span class="op">></span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">buffer</span>: <span class="ident">B</span>, <span class="ident">inner_size</span>: <span class="ident">wgpu::BufferAddress</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">buffer</span>, <span class="ident">inner_size</span> }
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">struct</span> <span class="ident">BackingBuffer</span><span class="op"><</span><span class="ident">B</span><span class="op">></span> {
|
||
<span class="doccomment">/// The internal structure which is used for storage</span>
|
||
<span class="ident">inner</span>: <span class="ident">B</span>,
|
||
<span class="doccomment">/// The size of the `inner` buffer</span>
|
||
<span class="ident">inner_size</span>: <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">typ</span>: <span class="ident">BackingBufferType</span>,
|
||
}
|
||
|
||
<span class="kw">impl</span><span class="op"><</span><span class="ident">B</span><span class="op">></span> <span class="ident">BackingBuffer</span><span class="op"><</span><span class="ident">B</span><span class="op">></span> {
|
||
<span class="kw">fn</span> <span class="ident">new</span>(<span class="ident">inner</span>: <span class="ident">B</span>, <span class="ident">inner_size</span>: <span class="ident">wgpu::BufferAddress</span>, <span class="ident">typ</span>: <span class="ident">BackingBufferType</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> {
|
||
<span class="ident">inner</span>,
|
||
<span class="ident">inner_size</span>,
|
||
<span class="ident">typ</span>,
|
||
}
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">make_room</span>(
|
||
<span class="kw-2">&mut</span> <span class="self">self</span>,
|
||
<span class="ident">new_data</span>: <span class="ident">wgpu::BufferAddress</span>,
|
||
<span class="ident">index</span>: <span class="kw-2">&mut</span> <span class="ident">RingIndex</span>,
|
||
) -> <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span> {
|
||
<span class="kw">if</span> <span class="ident">new_data</span> <span class="op">></span> <span class="self">self</span>.<span class="ident">inner_size</span> {
|
||
<span class="macro">panic!</span>(
|
||
<span class="string">"can not allocate because backing buffer {:?} are too small"</span>,
|
||
<span class="self">self</span>.<span class="ident">typ</span>
|
||
)
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">available_gap</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">find_largest_gap</span>(<span class="ident">index</span>);
|
||
|
||
<span class="kw">while</span> <span class="ident">new_data</span> <span class="op">></span> <span class="ident">available_gap</span>.<span class="ident">end</span> <span class="op">-</span> <span class="ident">available_gap</span>.<span class="ident">start</span> {
|
||
<span class="comment">// no more space, we need to evict items</span>
|
||
<span class="kw">if</span> <span class="ident">index</span>.<span class="ident">pop_front</span>().<span class="ident">is_some</span>() {
|
||
<span class="ident">available_gap</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">find_largest_gap</span>(<span class="ident">index</span>);
|
||
} <span class="kw">else</span> {
|
||
<span class="macro">panic!</span>(<span class="string">"evicted even though index is empty"</span>)
|
||
}
|
||
}
|
||
|
||
<span class="ident">available_gap</span>.<span class="ident">start</span>..<span class="ident">available_gap</span>.<span class="ident">start</span> <span class="op">+</span> <span class="ident">new_data</span>
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">find_largest_gap</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">index</span>: <span class="kw-2">&</span><span class="ident">RingIndex</span>) -> <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span> {
|
||
<span class="kw">let</span> <span class="ident">start</span> <span class="op">=</span> <span class="ident">index</span>.<span class="ident">front</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">first</span><span class="op">|</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">typ</span> {
|
||
<span class="ident">BackingBufferType::Vertices</span> => <span class="ident">first</span>.<span class="ident">buffer_vertices</span>.<span class="ident">start</span>,
|
||
<span class="ident">BackingBufferType::Indices</span> => <span class="ident">first</span>.<span class="ident">buffer_indices</span>.<span class="ident">start</span>,
|
||
<span class="ident">BackingBufferType::Metadata</span> => <span class="ident">first</span>.<span class="ident">buffer_layer_metadata</span>.<span class="ident">start</span>,
|
||
<span class="ident">BackingBufferType::FeatureMetadata</span> => <span class="ident">first</span>.<span class="ident">buffer_feature_metadata</span>.<span class="ident">start</span>,
|
||
});
|
||
<span class="kw">let</span> <span class="ident">end</span> <span class="op">=</span> <span class="ident">index</span>.<span class="ident">back</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">first</span><span class="op">|</span> <span class="kw">match</span> <span class="self">self</span>.<span class="ident">typ</span> {
|
||
<span class="ident">BackingBufferType::Vertices</span> => <span class="ident">first</span>.<span class="ident">buffer_vertices</span>.<span class="ident">end</span>,
|
||
<span class="ident">BackingBufferType::Indices</span> => <span class="ident">first</span>.<span class="ident">buffer_indices</span>.<span class="ident">end</span>,
|
||
<span class="ident">BackingBufferType::Metadata</span> => <span class="ident">first</span>.<span class="ident">buffer_layer_metadata</span>.<span class="ident">end</span>,
|
||
<span class="ident">BackingBufferType::FeatureMetadata</span> => <span class="ident">first</span>.<span class="ident">buffer_feature_metadata</span>.<span class="ident">end</span>,
|
||
});
|
||
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">start</span>) <span class="op">=</span> <span class="ident">start</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">end</span>) <span class="op">=</span> <span class="ident">end</span> {
|
||
<span class="kw">if</span> <span class="ident">end</span> <span class="op">></span> <span class="ident">start</span> {
|
||
<span class="comment">// we haven't wrapped yet in the ring buffer</span>
|
||
|
||
<span class="kw">let</span> <span class="ident">gap_from_start</span> <span class="op">=</span> <span class="number">0</span>..<span class="ident">start</span>; <span class="comment">// gap from beginning to first entry</span>
|
||
<span class="kw">let</span> <span class="ident">gap_to_end</span> <span class="op">=</span> <span class="ident">end</span>..<span class="self">self</span>.<span class="ident">inner_size</span>;
|
||
|
||
<span class="kw">if</span> <span class="ident">gap_to_end</span>.<span class="ident">end</span> <span class="op">-</span> <span class="ident">gap_to_end</span>.<span class="ident">start</span> <span class="op">></span> <span class="ident">gap_from_start</span>.<span class="ident">end</span> <span class="op">-</span> <span class="ident">gap_from_start</span>.<span class="ident">start</span>
|
||
{
|
||
<span class="ident">gap_to_end</span>
|
||
} <span class="kw">else</span> {
|
||
<span class="ident">gap_from_start</span>
|
||
}
|
||
} <span class="kw">else</span> {
|
||
<span class="comment">// we already wrapped in the ring buffer</span>
|
||
<span class="comment">// we choose the gab between the two</span>
|
||
<span class="ident">end</span>..<span class="ident">start</span>
|
||
}
|
||
} <span class="kw">else</span> {
|
||
<span class="macro">unreachable!</span>()
|
||
}
|
||
} <span class="kw">else</span> {
|
||
<span class="number">0</span>..<span class="self">self</span>.<span class="ident">inner_size</span>
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>, <span class="ident">Clone</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">IndexEntry</span> {
|
||
<span class="kw">pub</span> <span class="ident">coords</span>: <span class="ident">WorldTileCoords</span>,
|
||
<span class="kw">pub</span> <span class="ident">style_layer</span>: <span class="ident">StyleLayer</span>,
|
||
<span class="comment">// Range of bytes within the backing buffer for vertices</span>
|
||
<span class="ident">buffer_vertices</span>: <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span>,
|
||
<span class="comment">// Range of bytes within the backing buffer for indices</span>
|
||
<span class="ident">buffer_indices</span>: <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span>,
|
||
<span class="comment">// Range of bytes within the backing buffer for metadata</span>
|
||
<span class="ident">buffer_layer_metadata</span>: <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span>,
|
||
<span class="comment">// Range of bytes within the backing buffer for feature metadata</span>
|
||
<span class="ident">buffer_feature_metadata</span>: <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span>,
|
||
<span class="comment">// Amount of actually usable indices. Each index has the size/format `IndexDataType`.</span>
|
||
<span class="comment">// Can be lower than size(buffer_indices) / indices_stride because of alignment.</span>
|
||
<span class="ident">usable_indices</span>: <span class="ident">u32</span>,
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">IndexEntry</span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">indices_range</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">Range</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> {
|
||
<span class="number">0</span>..<span class="self">self</span>.<span class="ident">usable_indices</span>
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">indices_buffer_range</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">buffer_indices</span>.<span class="ident">clone</span>()
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">vertices_buffer_range</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">buffer_vertices</span>.<span class="ident">clone</span>()
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">layer_metadata_buffer_range</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">buffer_layer_metadata</span>.<span class="ident">clone</span>()
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">feature_metadata_buffer_range</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">Range</span><span class="op"><</span><span class="ident">wgpu::BufferAddress</span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">buffer_feature_metadata</span>.<span class="ident">clone</span>()
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">RingIndex</span> {
|
||
<span class="ident">tree_index</span>: <span class="ident">BTreeMap</span><span class="op"><</span><span class="ident">Quadkey</span>, <span class="ident">VecDeque</span><span class="op"><</span><span class="ident">IndexEntry</span><span class="op">></span><span class="op">></span>,
|
||
<span class="ident">linear_index</span>: <span class="ident">VecDeque</span><span class="op"><</span><span class="ident">Quadkey</span><span class="op">></span>,
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="ident">RingIndex</span> {
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">new</span>() -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> {
|
||
<span class="ident">tree_index</span>: <span class="ident">Default::default</span>(),
|
||
<span class="ident">linear_index</span>: <span class="ident">Default::default</span>(),
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">front</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">IndexEntry</span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">linear_index</span>
|
||
.<span class="ident">front</span>()
|
||
.<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">key</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">tree_index</span>.<span class="ident">get</span>(<span class="ident">key</span>).<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">entries</span><span class="op">|</span> <span class="ident">entries</span>.<span class="ident">front</span>()))
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">back</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">IndexEntry</span><span class="op">></span> {
|
||
<span class="self">self</span>.<span class="ident">linear_index</span>
|
||
.<span class="ident">back</span>()
|
||
.<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">key</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">tree_index</span>.<span class="ident">get</span>(<span class="ident">key</span>).<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">entries</span><span class="op">|</span> <span class="ident">entries</span>.<span class="ident">back</span>()))
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_layers</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">coords</span>: <span class="kw-2">&</span><span class="ident">WorldTileCoords</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">VecDeque</span><span class="op"><</span><span class="ident">IndexEntry</span><span class="op">></span><span class="op">></span> {
|
||
<span class="ident">coords</span>
|
||
.<span class="ident">build_quad_key</span>()
|
||
.<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">key</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">tree_index</span>.<span class="ident">get</span>(<span class="kw-2">&</span><span class="ident">key</span>))
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_layers_fallback</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">coords</span>: <span class="kw-2">&</span><span class="ident">WorldTileCoords</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">VecDeque</span><span class="op"><</span><span class="ident">IndexEntry</span><span class="op">></span><span class="op">></span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">current</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">coords</span>;
|
||
<span class="kw">loop</span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">entries</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">get_layers</span>(<span class="kw-2">&</span><span class="ident">current</span>) {
|
||
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">entries</span>);
|
||
} <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">parent</span>) <span class="op">=</span> <span class="ident">current</span>.<span class="ident">get_parent</span>() {
|
||
<span class="ident">current</span> <span class="op">=</span> <span class="ident">parent</span>
|
||
} <span class="kw">else</span> {
|
||
<span class="kw">return</span> <span class="prelude-val">None</span>;
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">has_tile</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">coords</span>: <span class="kw-2">&</span><span class="ident">WorldTileCoords</span>) -> <span class="ident">bool</span> {
|
||
<span class="ident">coords</span>
|
||
.<span class="ident">build_quad_key</span>()
|
||
.<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">key</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">tree_index</span>.<span class="ident">get</span>(<span class="kw-2">&</span><span class="ident">key</span>))
|
||
.<span class="ident">is_some</span>()
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">get_tile_coords_fallback</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">coords</span>: <span class="kw-2">&</span><span class="ident">WorldTileCoords</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">WorldTileCoords</span><span class="op">></span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">current</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">coords</span>;
|
||
<span class="kw">loop</span> {
|
||
<span class="kw">if</span> <span class="self">self</span>.<span class="ident">has_tile</span>(<span class="kw-2">&</span><span class="ident">current</span>) {
|
||
<span class="kw">return</span> <span class="prelude-val">Some</span>(<span class="ident">current</span>);
|
||
} <span class="kw">else</span> <span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">parent</span>) <span class="op">=</span> <span class="ident">current</span>.<span class="ident">get_parent</span>() {
|
||
<span class="ident">current</span> <span class="op">=</span> <span class="ident">parent</span>
|
||
} <span class="kw">else</span> {
|
||
<span class="kw">return</span> <span class="prelude-val">None</span>;
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">iter</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw">impl</span> <span class="ident">Iterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="kw">impl</span> <span class="ident">Iterator</span><span class="op"><</span><span class="ident">Item</span> <span class="op">=</span> <span class="kw-2">&</span><span class="ident">IndexEntry</span><span class="op">></span><span class="op">></span> <span class="op">+</span> <span class="lifetime">'_</span> {
|
||
<span class="self">self</span>.<span class="ident">linear_index</span>
|
||
.<span class="ident">iter</span>()
|
||
.<span class="ident">flat_map</span>(<span class="op">|</span><span class="ident">key</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">tree_index</span>.<span class="ident">get</span>(<span class="ident">key</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">entries</span><span class="op">|</span> <span class="ident">entries</span>.<span class="ident">iter</span>()))
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">pop_front</span>(<span class="kw-2">&mut</span> <span class="self">self</span>) -> <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">IndexEntry</span><span class="op">></span> {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">entries</span>) <span class="op">=</span> <span class="self">self</span>
|
||
.<span class="ident">linear_index</span>
|
||
.<span class="ident">pop_front</span>()
|
||
.<span class="ident">and_then</span>(<span class="op">|</span><span class="ident">key</span><span class="op">|</span> <span class="self">self</span>.<span class="ident">tree_index</span>.<span class="ident">get_mut</span>(<span class="kw-2">&</span><span class="ident">key</span>))
|
||
{
|
||
<span class="ident">entries</span>.<span class="ident">pop_front</span>()
|
||
} <span class="kw">else</span> {
|
||
<span class="prelude-val">None</span>
|
||
}
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">push_back</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">entry</span>: <span class="ident">IndexEntry</span>) {
|
||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">key</span>) <span class="op">=</span> <span class="ident">entry</span>.<span class="ident">coords</span>.<span class="ident">build_quad_key</span>() {
|
||
<span class="kw">match</span> <span class="self">self</span>.<span class="ident">tree_index</span>.<span class="ident">entry</span>(<span class="ident">key</span>) {
|
||
<span class="ident">btree_map::Entry::Vacant</span>(<span class="ident">index_entry</span>) => {
|
||
<span class="ident">index_entry</span>.<span class="ident">insert</span>(<span class="ident">VecDeque::from</span>([<span class="ident">entry</span>]));
|
||
}
|
||
<span class="ident">btree_map::Entry::Occupied</span>(<span class="kw-2">mut</span> <span class="ident">index_entry</span>) => {
|
||
<span class="ident">index_entry</span>.<span class="ident">get_mut</span>().<span class="ident">push_back</span>(<span class="ident">entry</span>);
|
||
}
|
||
}
|
||
|
||
<span class="self">self</span>.<span class="ident">linear_index</span>.<span class="ident">push_back</span>(<span class="ident">key</span>)
|
||
} <span class="kw">else</span> {
|
||
<span class="macro">unreachable!</span>() <span class="comment">// TODO handle</span>
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
|
||
<span class="kw">mod</span> <span class="ident">tests</span> {
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::coords::ZoomLevel</span>;
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::style::layer::StyleLayer</span>;
|
||
<span class="kw">use</span> <span class="ident">lyon::tessellation::VertexBuffers</span>;
|
||
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::render::resource::buffer_pool::BackingBufferType</span>;
|
||
<span class="kw">use</span> <span class="ident"><span class="kw">crate</span>::render::resource</span>::{<span class="ident">BackingBufferDescriptor</span>, <span class="ident">BufferPool</span>, <span class="ident">Queue</span>};
|
||
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Debug</span>)]</span>
|
||
<span class="kw">struct</span> <span class="ident">TestBuffer</span> {
|
||
<span class="ident">size</span>: <span class="ident">wgpu::BufferAddress</span>,
|
||
}
|
||
<span class="kw">struct</span> <span class="ident">TestQueue</span>;
|
||
|
||
<span class="kw">impl</span> <span class="ident">Queue</span><span class="op"><</span><span class="ident">TestBuffer</span><span class="op">></span> <span class="kw">for</span> <span class="ident">TestQueue</span> {
|
||
<span class="kw">fn</span> <span class="ident">write_buffer</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">buffer</span>: <span class="kw-2">&</span><span class="ident">TestBuffer</span>, <span class="ident">offset</span>: <span class="ident">wgpu::BufferAddress</span>, <span class="ident">data</span>: <span class="kw-2">&</span>[<span class="ident">u8</span>]) {
|
||
<span class="kw">if</span> <span class="ident">offset</span> <span class="op">+</span> <span class="ident">data</span>.<span class="ident">len</span>() <span class="kw">as</span> <span class="ident">wgpu::BufferAddress</span> <span class="op">></span> <span class="ident">buffer</span>.<span class="ident">size</span> {
|
||
<span class="macro">panic!</span>(<span class="string">"write out of bounds"</span>);
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">repr</span>(<span class="ident">C</span>)]</span>
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Default</span>, <span class="ident">Copy</span>, <span class="ident">Clone</span>, <span class="ident">bytemuck_derive::Pod</span>, <span class="ident">bytemuck_derive::Zeroable</span>)]</span>
|
||
<span class="kw">struct</span> <span class="ident">TestVertex</span> {
|
||
<span class="ident">data</span>: [<span class="ident">u8</span>; <span class="number">24</span>],
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">create_48byte</span>() -> <span class="ident">Vec</span><span class="op"><</span><span class="ident">TestVertex</span><span class="op">></span> {
|
||
<span class="macro">vec!</span>[<span class="ident">TestVertex::default</span>(), <span class="ident">TestVertex::default</span>()]
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">create_24byte</span>() -> <span class="ident">Vec</span><span class="op"><</span><span class="ident">TestVertex</span><span class="op">></span> {
|
||
<span class="macro">vec!</span>[<span class="ident">TestVertex::default</span>()]
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_allocate</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">pool</span>: <span class="ident">BufferPool</span><span class="op"><</span><span class="ident">TestQueue</span>, <span class="ident">TestBuffer</span>, <span class="ident">TestVertex</span>, <span class="ident">u32</span>, <span class="ident">u32</span>, <span class="ident">u32</span><span class="op">></span> <span class="op">=</span>
|
||
<span class="ident">BufferPool::new</span>(
|
||
<span class="ident">BackingBufferDescriptor::new</span>(<span class="ident">TestBuffer</span> { <span class="ident">size</span>: <span class="number">128</span> }, <span class="number">128</span>),
|
||
<span class="ident">BackingBufferDescriptor::new</span>(<span class="ident">TestBuffer</span> { <span class="ident">size</span>: <span class="number">128</span> }, <span class="number">128</span>),
|
||
<span class="ident">BackingBufferDescriptor::new</span>(<span class="ident">TestBuffer</span> { <span class="ident">size</span>: <span class="number">128</span> }, <span class="number">128</span>),
|
||
<span class="ident">BackingBufferDescriptor::new</span>(<span class="ident">TestBuffer</span> { <span class="ident">size</span>: <span class="number">128</span> }, <span class="number">128</span>),
|
||
);
|
||
|
||
<span class="kw">let</span> <span class="ident">queue</span> <span class="op">=</span> <span class="ident">TestQueue</span> {};
|
||
<span class="kw">let</span> <span class="ident">style_layer</span> <span class="op">=</span> <span class="ident">StyleLayer::default</span>();
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">data48bytes</span> <span class="op">=</span> <span class="ident">VertexBuffers::new</span>();
|
||
<span class="ident">data48bytes</span>.<span class="ident">vertices</span>.<span class="ident">append</span>(<span class="kw-2">&mut</span> <span class="ident">create_48byte</span>());
|
||
<span class="ident">data48bytes</span>.<span class="ident">indices</span>.<span class="ident">append</span>(<span class="kw-2">&mut</span> <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
|
||
<span class="kw">let</span> <span class="ident">data48bytes_aligned</span> <span class="op">=</span> <span class="ident">data48bytes</span>.<span class="ident">into</span>();
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">data24bytes</span> <span class="op">=</span> <span class="ident">VertexBuffers::new</span>();
|
||
<span class="ident">data24bytes</span>.<span class="ident">vertices</span>.<span class="ident">append</span>(<span class="kw-2">&mut</span> <span class="ident">create_24byte</span>());
|
||
<span class="ident">data24bytes</span>.<span class="ident">indices</span>.<span class="ident">append</span>(<span class="kw-2">&mut</span> <span class="macro">vec!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
|
||
<span class="kw">let</span> <span class="ident">data24bytes_aligned</span> <span class="op">=</span> <span class="ident">data24bytes</span>.<span class="ident">into</span>();
|
||
|
||
<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">2</span> {
|
||
<span class="ident">pool</span>.<span class="ident">allocate_layer_geometry</span>(
|
||
<span class="kw-2">&</span><span class="ident">queue</span>,
|
||
(<span class="number">0</span>, <span class="number">0</span>, <span class="ident">ZoomLevel::default</span>()).<span class="ident">into</span>(),
|
||
<span class="ident">style_layer</span>.<span class="ident">clone</span>(),
|
||
<span class="kw-2">&</span><span class="ident">data48bytes_aligned</span>,
|
||
<span class="number">2</span>,
|
||
<span class="kw-2">&</span>[],
|
||
);
|
||
}
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="number">128</span> <span class="op">-</span> <span class="number">2</span> <span class="op">*</span> <span class="number">48</span>,
|
||
<span class="ident">pool</span>.<span class="ident">available_space</span>(<span class="ident">BackingBufferType::Vertices</span>)
|
||
);
|
||
|
||
<span class="ident">pool</span>.<span class="ident">allocate_layer_geometry</span>(
|
||
<span class="kw-2">&</span><span class="ident">queue</span>,
|
||
(<span class="number">0</span>, <span class="number">0</span>, <span class="ident">ZoomLevel::default</span>()).<span class="ident">into</span>(),
|
||
<span class="ident">style_layer</span>.<span class="ident">clone</span>(),
|
||
<span class="kw-2">&</span><span class="ident">data24bytes_aligned</span>,
|
||
<span class="number">2</span>,
|
||
<span class="kw-2">&</span>[],
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="number">128</span> <span class="op">-</span> <span class="number">2</span> <span class="op">*</span> <span class="number">48</span> <span class="op">-</span> <span class="number">24</span>,
|
||
<span class="ident">pool</span>.<span class="ident">available_space</span>(<span class="ident">BackingBufferType::Vertices</span>)
|
||
);
|
||
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, <span class="kw-2">&</span><span class="ident">pool</span>.<span class="ident">index</span>);
|
||
|
||
<span class="ident">pool</span>.<span class="ident">allocate_layer_geometry</span>(
|
||
<span class="kw-2">&</span><span class="ident">queue</span>,
|
||
(<span class="number">0</span>, <span class="number">0</span>, <span class="ident">ZoomLevel::default</span>()).<span class="ident">into</span>(),
|
||
<span class="ident">style_layer</span>.<span class="ident">clone</span>(),
|
||
<span class="kw-2">&</span><span class="ident">data24bytes_aligned</span>,
|
||
<span class="number">2</span>,
|
||
<span class="kw-2">&</span>[],
|
||
);
|
||
<span class="comment">// appended now at the beginning</span>
|
||
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, <span class="kw-2">&</span><span class="ident">pool</span>.<span class="ident">index</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="number">24</span>, <span class="ident">pool</span>.<span class="ident">available_space</span>(<span class="ident">BackingBufferType::Vertices</span>));
|
||
|
||
<span class="ident">pool</span>.<span class="ident">allocate_layer_geometry</span>(
|
||
<span class="kw-2">&</span><span class="ident">queue</span>,
|
||
(<span class="number">0</span>, <span class="number">0</span>, <span class="ident">ZoomLevel::default</span>()).<span class="ident">into</span>(),
|
||
<span class="ident">style_layer</span>.<span class="ident">clone</span>(),
|
||
<span class="kw-2">&</span><span class="ident">data24bytes_aligned</span>,
|
||
<span class="number">2</span>,
|
||
<span class="kw-2">&</span>[],
|
||
);
|
||
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, <span class="kw-2">&</span><span class="ident">pool</span>.<span class="ident">index</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="number">0</span>, <span class="ident">pool</span>.<span class="ident">available_space</span>(<span class="ident">BackingBufferType::Vertices</span>));
|
||
|
||
<span class="ident">pool</span>.<span class="ident">allocate_layer_geometry</span>(
|
||
<span class="kw-2">&</span><span class="ident">queue</span>,
|
||
(<span class="number">0</span>, <span class="number">0</span>, <span class="ident">ZoomLevel::default</span>()).<span class="ident">into</span>(),
|
||
<span class="ident">style_layer</span>.<span class="ident">clone</span>(),
|
||
<span class="kw-2">&</span><span class="ident">data24bytes_aligned</span>,
|
||
<span class="number">2</span>,
|
||
<span class="kw-2">&</span>[],
|
||
);
|
||
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, <span class="kw-2">&</span><span class="ident">pool</span>.<span class="ident">index</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="number">24</span>, <span class="ident">pool</span>.<span class="ident">available_space</span>(<span class="ident">BackingBufferType::Vertices</span>));
|
||
|
||
<span class="ident">pool</span>.<span class="ident">allocate_layer_geometry</span>(
|
||
<span class="kw-2">&</span><span class="ident">queue</span>,
|
||
(<span class="number">0</span>, <span class="number">0</span>, <span class="ident">ZoomLevel::default</span>()).<span class="ident">into</span>(),
|
||
<span class="ident">style_layer</span>,
|
||
<span class="kw-2">&</span><span class="ident">data24bytes_aligned</span>,
|
||
<span class="number">2</span>,
|
||
<span class="kw-2">&</span>[],
|
||
);
|
||
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, <span class="kw-2">&</span><span class="ident">pool</span>.<span class="ident">index</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="number">0</span>, <span class="ident">pool</span>.<span class="ident">available_space</span>(<span class="ident">BackingBufferType::Vertices</span>));
|
||
}
|
||
}
|
||
</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="1.62.0 (a8314ef7d 2022-06-27)" ></div>
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||
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