Graphite with Vulkan backend

[YUANPEI WU]

Hi folks!

I am building a prototype using skia->graphite->vulkan.

I am wondering what does recorder.snap()  exactly do in this case? Does the snap() function directly create VK command buffers? or it just creates skia data structures and the context.insertRecording() will create VK commands?

In other words, how is the division of jobs between snap() and insertRecording(), when the vulkan backend is used.

Thanks in advance!

[Jim Van Verth]

At a high level your second intuition is correct. Recorder::snap() will create a Recording, which is a collection of API-agnostic rendering, compute, and copy tasks. Context::insertRecording() parses those tasks, turns them into specific API commands, and inserts them into the command buffer. However, there is some preprocessing done during snap(): for example, loading data into buffers.

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Jim Van Verth | Software Engineer | Google.com

[Jim Van Verth]

See Greg's response in the other thread for more detail.