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SDL3 GPU WebGPU Backend#12046

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Commits on Jan 21, 2025

• Nuked my repo due to it being 600 commits ahead of upstream even though all of the commits were the one I just rebased... Fixed everything back up.

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• Got Point, Linear, and Aniso samplers working with Clamp and Repeat

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• Began work on PushVertexUniformData. Investigated bug where certain GPU objects aren't being released via the bindings. Might be an actual bug with Emscripten's bindings specifically, need more info.

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• Cleaned up logging in preparation for managing Uniform Buffers.

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• Refactored buffer and texture data structures to be more simple as there is no reason for them to mimic the Vulkan implementation. Added GPU API checklist. Next will be vertex and fragment uniform …

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• PushVertexUniformData() and PushFragmentUniformData() no longer cause crashes, but nothing renders properly. Need to investigate further.

  klukaszek

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• Fixed SDLToWGPUTextureUsageFlags() to properly handle bit flags instead of individual enums.

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• Working on getting WebGPU_Blit() ready for implementation by solving a bunch of existing bugs with the backend. Still encountering a layerCount issue that I cannot verify. My debugger says the text…

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• Implemented simple miscellaneous functions to knock them off of the checklist.

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• Trying to get array layers working for 3D textures since WebGPU only allows views of 1 layer for color attachments...

  klukaszek

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• Implemented a blitting pipeline for WebGPU since there is no blit functionality offered in WebGPU.

  klukaszek

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• Refactored to use SDL_GPU_BlitCommon instead of writing my own WebGPU pipelines. Now we create internal SDL pipelines and everything is handled nicely. 3D texture example still works.

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• Made more progess on 2D texture array blitting. Now I need to investigate why the sampler isn't working in the Blit2DArray example.

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• Refactored several calls to SDL_malloc to SDL_stack_alloc if data is no longer needed outside of the frame. Minimizes heap resizing

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• Feat: Added stencil reference adjustment

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• Feat: Got BlitCube example working

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• Refactor: Eliminated many unnecessary dynamic memory allocations. Far more static allocations now. Static allocations only occur on named object creation, and when dealing with PipelineLayouts. Pla…

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• Removed print statements that angered different test pipelines.

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• Misc: Moved SDL3 WebGPU Checklist to src/gpu/webgpu/

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• Misc: Moved SDL3 WebGPU Checklist to src/gpu/webgpu/

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• Misc: Added SDL3 GPU ReadMe

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• Misc: Added SDL3 GPU ReadMe

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• Misc: Updated emscripten's version for the test pipeline.

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• Misc: Updated emscripten's version for the test pipeline.

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  committed
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• Misc: trying to get Emscripten test pipeline working.

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  committed
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• Fix: Rebased with upstream and solved a recently implemented bug with the emscripten keyboard event handlers when no hint was set.

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• Feat: Made swapchain a static allocation.

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• Refactor: Removed Emscripten specific Swapchain logic. Now I manually configure the surface. Elie Michel's surface configuration logic was added but the macros don't seem to want to work for me. I'…

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• Feat: Implemented indirect drawing support for WebGPU.

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Commits on Jan 22, 2025

• Refactor: Added explicit loop termination while waiting for the device callback.

  klukaszek

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• Refactor: Setting of viewport and scissor is done in WebGPU_BeginRenderPass

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• Misc: Added standard text to top of file.

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• Misc: Changed some imports.

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• Misc: Changed some more imports.

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• Refactor: Changed default renderpass state initialization to better match Vulkan implementation.

  klukaszek

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• Refactor: Removed ~0u conversion as I had forgotten that I had resolved this problem already.

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• Refactor: Moved SDL_internal.h to the very top

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Commits on Jan 23, 2025

• Refactor: Started implementing fencing properly.

  klukaszek

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• Refactor: Added fence pool and associated internal functions.

  klukaszek

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• Refactor: Added uniform buffer pool.

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  committed
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• Refactor: Implemented placeholder fencing logic. Has not actually been tested but it compiles.

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Commits on Jan 28, 2025

• Nuked my repo due to it being 600 commits ahead of upstream even though all of the commits were the one I just rebased... Fixed everything back up.

  klukaszek

  committed
  8fabcca

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• Got Point, Linear, and Aniso samplers working with Clamp and Repeat

  klukaszek

  committed
  56f9a9c

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• Began work on PushVertexUniformData. Investigated bug where certain GPU objects aren't being released via the bindings. Might be an actual bug with Emscripten's bindings specifically, need more info.

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  klukaszek

  committed
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• Cleaned up logging in preparation for managing Uniform Buffers.

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• Refactored buffer and texture data structures to be more simple as there is no reason for them to mimic the Vulkan implementation. Added GPU API checklist. Next will be vertex and fragment uniform …

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  klukaszek

  committed
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• PushVertexUniformData() and PushFragmentUniformData() no longer cause crashes, but nothing renders properly. Need to investigate further.

  klukaszek

  committed
  85b992d

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• Fixed SDLToWGPUTextureUsageFlags() to properly handle bit flags instead of individual enums.

  klukaszek

  committed
  8521e4e

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• Working on getting WebGPU_Blit() ready for implementation by solving a bunch of existing bugs with the backend. Still encountering a layerCount issue that I cannot verify. My debugger says the text…

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  klukaszek

  committed
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• Implemented simple miscellaneous functions to knock them off of the checklist.

  klukaszek

  committed
  2f7f0eb

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• Trying to get array layers working for 3D textures since WebGPU only allows views of 1 layer for color attachments...

  klukaszek

  committed
  01b4880

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• Implemented a blitting pipeline for WebGPU since there is no blit functionality offered in WebGPU.

  klukaszek

  committed
  70d2269

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• Refactored to use SDL_GPU_BlitCommon instead of writing my own WebGPU pipelines. Now we create internal SDL pipelines and everything is handled nicely. 3D texture example still works.

  klukaszek

  committed
  3f8682b

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• Made more progess on 2D texture array blitting. Now I need to investigate why the sampler isn't working in the Blit2DArray example.

  klukaszek

  committed
  e93956d

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• Refactored several calls to SDL_malloc to SDL_stack_alloc if data is no longer needed outside of the frame. Minimizes heap resizing

  klukaszek

  committed
  a37c1c6

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• Feat: Added stencil reference adjustment

  klukaszek

  committed
  0c33fad

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• Feat: Got BlitCube example working

  klukaszek

  committed
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• Refactor: Eliminated many unnecessary dynamic memory allocations. Far more static allocations now. Static allocations only occur on named object creation, and when dealing with PipelineLayouts. Pla…

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• Removed print statements that angered different test pipelines.

  klukaszek

  committed
  bca377b

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• Misc: Moved SDL3 WebGPU Checklist to src/gpu/webgpu/

  klukaszek

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• Misc: Moved SDL3 WebGPU Checklist to src/gpu/webgpu/

  klukaszek

  committed
  ea6f5fb

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• Misc: Added SDL3 GPU ReadMe

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• Misc: Added SDL3 GPU ReadMe

  klukaszek

  committed
  923b925

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• Misc: Updated emscripten's version for the test pipeline.

  klukaszek

  committed
  07fcef4

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• Misc: Updated emscripten's version for the test pipeline.

  klukaszek

  committed
  585b68a

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• Misc: trying to get Emscripten test pipeline working.

  klukaszek

  committed
  3d39bb9

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• Fix: Rebased with upstream and solved a recently implemented bug with the emscripten keyboard event handlers when no hint was set.

  klukaszek

  committed
  c0fb4a5

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• Feat: Made swapchain a static allocation.

  klukaszek

  committed
  4e92ba2

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• Refactor: Removed Emscripten specific Swapchain logic. Now I manually configure the surface. Elie Michel's surface configuration logic was added but the macros don't seem to want to work for me. I'…

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  klukaszek

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• Feat: Implemented indirect drawing support for WebGPU.

  klukaszek

  committed
  dd64914

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• Refactor: Added explicit loop termination while waiting for the device callback.

  klukaszek

  committed
  0b3b440

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• Refactor: Setting of viewport and scissor is done in WebGPU_BeginRenderPass

  klukaszek

  committed
  ebb99a2

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• Misc: Added standard text to top of file.

  klukaszek

  committed
  7960aa3

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• Misc: Changed some imports.

  klukaszek

  committed
  1cfb6af

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• Misc: Changed some more imports.

  klukaszek

  committed
  3988cd3

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• Refactor: Changed default renderpass state initialization to better match Vulkan implementation.

  klukaszek

  committed
  2dcd6c7

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• Refactor: Removed ~0u conversion as I had forgotten that I had resolved this problem already.

  klukaszek

  committed
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• Refactor: Moved SDL_internal.h to the very top

  klukaszek

  committed
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• Refactor: Started implementing fencing properly.

  klukaszek

  committed
  3ee7c13

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• Refactor: Added fence pool and associated internal functions.

  klukaszek

  committed
  e861a1e

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• Refactor: Added uniform buffer pool.

  klukaszek

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• Refactor: Implemented placeholder fencing logic. Has not actually been tested but it compiles.

  klukaszek

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• Merge branch 'working'

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Commits on Jan 30, 2025

• WIP: Working on threaded command pool functionality

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Commits on Feb 1, 2025

• Feat: Implemented command buffer pooling. Command buffers are not fully implemented yet, but I have worked the existing pooling logic from the other backends to work with WebGPU. Makes use of mutex…

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