# SDL_GPUTransferBufferUsage

Specifies how a transfer buffer is intended to be used by the client.

## Header File

Defined in [<SDL3/SDL_gpu.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_gpu.h)

## Syntax

```c
typedef enum SDL_GPUTransferBufferUsage
{
    SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD,
    SDL_GPU_TRANSFERBUFFERUSAGE_DOWNLOAD
} SDL_GPUTransferBufferUsage;
```

## Remarks

Note that mapping and copying FROM an upload transfer buffer or TO a
download transfer buffer is undefined behavior.

## Version

This enum is available since SDL 3.2.0.

## See Also

- [SDL_CreateGPUTransferBuffer](SDL_CreateGPUTransferBuffer)

----
[CategoryAPI](CategoryAPI), [CategoryAPIEnum](CategoryAPIEnum), [CategoryGPU](CategoryGPU)