Implement push constants for pipeline cache#4908
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MDeiml wants to merge 3 commits intobevyengine:mainfrom
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Implement push constants for pipeline cache#4908MDeiml wants to merge 3 commits intobevyengine:mainfrom
MDeiml wants to merge 3 commits intobevyengine:mainfrom
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james7132
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james7132
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Jun 4, 2022
| #[derive(Default)] | ||
| struct LayoutCache { | ||
| layouts: HashMap<Vec<BindGroupLayoutId>, wgpu::PipelineLayout>, | ||
| layouts: HashMap<(Vec<BindGroupLayoutId>, Vec<PushConstantRange>), wgpu::PipelineLayout>, |
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This key is getting pretty darn big. We should probably consider making this a dedicated type and use bevy_utils::PreHashMap
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@james7132 I don't understand how PreHashMap helps in this case. Hashed<K> also stores K. If anything, using PreHashMap makes the key bigger because it memoizes the u64 hash.
I'm necromancing this thread b/c @Neo-Zhixing is trying to do something similar in #7681 .
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This feature would be super useful. Any updates on this? It's been a while. @cart @superdump |
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Adopted in #7681. |
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# Objective Allow for creating pipelines that use push constants. To be able to use push constants. Fixes #4825 As of right now, trying to call `RenderPass::set_push_constants` will trigger the following error: ``` thread 'main' panicked at 'wgpu error: Validation Error Caused by: In a RenderPass note: encoder = `<CommandBuffer-(0, 59, Vulkan)>` In a set_push_constant command provided push constant is for stage(s) VERTEX | FRAGMENT | VERTEX_FRAGMENT, however the pipeline layout has no push constant range for the stage(s) VERTEX | FRAGMENT | VERTEX_FRAGMENT ``` ## Solution Add a field push_constant_ranges to` RenderPipelineDescriptor` and `ComputePipelineDescriptor`. This PR supersedes #4908 which now contains merge conflicts due to significant changes to `bevy_render`. Meanwhile, this PR also made the `layout` field of `RenderPipelineDescriptor` and `ComputePipelineDescriptor` non-optional. If the user do not need to specify the bind group layouts, they can simply supply an empty vector here. No need for it to be optional. --- ## Changelog - Add a field push_constant_ranges to RenderPipelineDescriptor and ComputePipelineDescriptor - Made the `layout` field of RenderPipelineDescriptor and ComputePipelineDescriptor non-optional. ## Migration Guide - Add push_constant_ranges: Vec::new() to every `RenderPipelineDescriptor` and `ComputePipelineDescriptor` - Unwrap the optional values on the `layout` field of `RenderPipelineDescriptor` and `ComputePipelineDescriptor`. If the descriptor has no layout, supply an empty vector. Co-authored-by: Zhixing Zhang <me@neoto.xin>
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# Objective Allow for creating pipelines that use push constants. To be able to use push constants. Fixes bevyengine#4825 As of right now, trying to call `RenderPass::set_push_constants` will trigger the following error: ``` thread 'main' panicked at 'wgpu error: Validation Error Caused by: In a RenderPass note: encoder = `<CommandBuffer-(0, 59, Vulkan)>` In a set_push_constant command provided push constant is for stage(s) VERTEX | FRAGMENT | VERTEX_FRAGMENT, however the pipeline layout has no push constant range for the stage(s) VERTEX | FRAGMENT | VERTEX_FRAGMENT ``` ## Solution Add a field push_constant_ranges to` RenderPipelineDescriptor` and `ComputePipelineDescriptor`. This PR supersedes bevyengine#4908 which now contains merge conflicts due to significant changes to `bevy_render`. Meanwhile, this PR also made the `layout` field of `RenderPipelineDescriptor` and `ComputePipelineDescriptor` non-optional. If the user do not need to specify the bind group layouts, they can simply supply an empty vector here. No need for it to be optional. --- ## Changelog - Add a field push_constant_ranges to RenderPipelineDescriptor and ComputePipelineDescriptor - Made the `layout` field of RenderPipelineDescriptor and ComputePipelineDescriptor non-optional. ## Migration Guide - Add push_constant_ranges: Vec::new() to every `RenderPipelineDescriptor` and `ComputePipelineDescriptor` - Unwrap the optional values on the `layout` field of `RenderPipelineDescriptor` and `ComputePipelineDescriptor`. If the descriptor has no layout, supply an empty vector. Co-authored-by: Zhixing Zhang <me@neoto.xin>
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Objective
Allow for creating pipelines that use push constants. To be able to use push constants this depends on #4824. Fixes #4825.
Solution
Add a field
push_constant_rangestoRenderPipelineDescriptorandComputePipelineDescriptorChangelog
push_constant_rangestoRenderPipelineDescriptorandComputePipelineDescriptorbevy_sprite,bevy_uiandbevy_pbrto declare the new fieldMigration Guide
push_constant_ranges: Noneto everyRenderPipelineDescriptorandComputePipelineDescriptor