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Commits on Aug 23, 2022

• Oscilloscope: implemented AVX512F version of Convert16BitSamples

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• PicoOscilloscope: remove GPU accelerated waveform conversion as it ends up being slower than AVX

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• TRCImportFilter now creates its own command buffer. Added some output-only binding flags. Fix bug where dispatch is 64x larger than it needs to be.

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• Added GetComputeBlockCount helper function

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• PicoOscilloscope: avoid excessive reallocation of temporary buffers

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• AcceleratorBuffer: don't reallocate when shrinking to fit unless size has changed

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• PicoOscilloscope: use AcceleratorBuffer for temporaries

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• Added flag for enabling/disabling GPU acceleration in scope drivers

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• AcceleratorBuffer: added GetCpuPtr()

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• Added 8 bit sample conversion filter

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Commits on Aug 22, 2022

• Added support for push constants to ComputePipeline. Implemented Convert16BitSamples as a Vulkan shader.

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• TRCImportFilter: refactoring in preparation for GPU acceleration

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• Refactoring: Created ComputePipeline class to encapsulate a Vulkan filter pipeline

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• Waveform: default to using on-GPU memory for sample data

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• Initial version of SubtractFilter is now working using Vulkan! Need a lot of refactoring before we can reuse this code elsewhere, but it's alive.

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Commits on Aug 21, 2022

• SubtractFilter: continue initial Vulkan-ization. Almost ready to actually call the compute shader, but still doing software processing for the moment.

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• FilterGraphExecutor: actually use thread local command pool instead of the global transfer one (copy paste error)

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• AcceleratorBuffer: make sure we always allocate enough space for a buffer (may be rounded up to page size etc)

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• Filter/FilterGraphExecutor: added new Refresh() method that takes a Vulkan command buffer and queue

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• StreamDescriptor: calling GetData() on a null stream is now legal and returns null

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• Initial work on Vulkan implementation of SubtractFilter. Incomplete, not functional.

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Commits on Aug 20, 2022

• Allow filters to specify where they want inputs (CPU, GPU, or don't care). Began preparing SubtractFilter for Vulkan implementation

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• Case fix for YAML package

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• Added PrepareForCpuAccess() helper method to Waveform class

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• UpsampleFilter: avoid excessive use of push_back causing constant reallocations even when length is known in advance

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• Bug fix: UpsampleFilter fails to mark output as dense packed despite always creating dense waveforms

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• Initial working version of FilterGraphExecutor thread-pool model.

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• Initial version of FilterGraphExecutor. Intermediate commit, known broken.

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• Refactoring: Waveform now uses AcceleratorBuffer for waveform storage instead of std::vector. Removed the abomination that was EmptyConstructorWrapper.

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• AcceleratorBuffer: added pop_front() and iterators. Removed early stage print statements from debugging

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• AcceleratorBuffer: added CopyFrom method

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• Added default case to avoid compiler warning (appears to be false positive, does not appear reachable)

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• Added warning for invalid type

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• Merge pull request #669 from 602p/protocolwaveform_refactor

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Commits on Aug 19, 2022

• Remove commented-out GetText/GetColor in Filter

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