score::gfx::ComputeEncoder Struct Reference

Base interface for compute-shader RGBA -> AJA-format encoders. More...

Inheritance diagram for score::gfx::ComputeEncoder:

Detailed Description

Base interface for compute-shader RGBA -> AJA-format encoders.

Unlike the fragment GPUVideoEncoder family which writes into textures (and is consumed by readback), these encoders write directly to a caller-owned QRhiBuffer (Storage). Designed for the AJA tier-3 path: the buffer is backed by a SHARED, CUDA-importable, AJA-DMA-locked GPU allocation, so the encoder's writes ARE the bytes AJA P2P-DMAs to the SDI card.

Concrete encoders: V210Compute, UYVYCompute, BGRACompute.

Lifecycle:

1. init(rhi, state, src, w, h, outBuf, colorConv): create the compute pipeline + bind outBuf as the output SSBO.
2. exec(rhi, cb, res): inside an offscreen frame, update the params UBO via res and dispatch the compute pass on cb.
3. release(): free GPU resources.

Public Member Functions
virtual bool	init (QRhi &rhi, const RenderState &state, QRhiTexture *src, int width, int height, QRhiBuffer *outputBuffer, const QString &colorConversion=colorMatrixOut())=0
virtual void	exec (QRhi &rhi, QRhiCommandBuffer &cb, QRhiResourceUpdateBatch *res)=0
virtual void	release ()=0

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The documentation for this struct was generated from the following file:

• ComputeEncoder.hpp