(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_DispatchGPUComputeIndirect

Dispatches compute work with parameters set from a buffer.

Header File

Defined in <SDL3/SDL_gpu.h>

Syntax

void SDL_DispatchGPUComputeIndirect(
    SDL_GPUComputePass *compute_pass,
    SDL_GPUBuffer *buffer,
    Uint32 offset);

Function Parameters

SDL_GPUComputePass *	compute_pass	a compute pass handle.
SDL_GPUBuffer *	buffer	a buffer containing dispatch parameters.
Uint32	offset	the offset to start reading from the dispatch buffer.

Remarks

The buffer layout should match the layout of SDL_GPUIndirectDispatchCommand. You must not call this function before binding a compute pipeline.

A VERY IMPORTANT NOTE If you dispatch multiple times in a compute pass, and the dispatches write to the same resource region as each other, there is no guarantee of which order the writes will occur. If the write order matters, you MUST end the compute pass and begin another one.

Version

This function is available since SDL 3.1.3.

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CategoryAPI, CategoryAPIFunction, CategoryGPU

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