SDL_CreateGPUTransferBuffer(3)

✨ SDL_CreateGPUTransferBuffer(3) ✨

okay bestie, welcome to the SDL3 FUNCTIONS corner of the manual, where we're talking about SDL_CreateGPUTransferBuffer — your lil' staging-area-maker for shoving data up into (or pulling data down out of) your graphics resources. 🦋

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🌸 NAME 🌸

SDL_CreateGPUTransferBuffer — makes a transfer buffer, which is the thing you use when you're uploading to or downloading from graphics resources. that's it, that's the job. 💅

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🎀 SYNOPSIS 🎀

#include <SDL3/SDL_gpu.h>

SDL_GPUTransferBuffer * SDL_CreateGPUTransferBuffer(
    SDL_GPUDevice *device,
    const SDL_GPUTransferBufferCreateInfo *createinfo);

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💖 DESCRIPTION 💖

so here's the tea: download buffers can be especially expensive to create, so it's genuinely good practice to reuse them if you're gonna be downloading data on the regular. don't be out here making a fresh one every single time, that's not the vibe. 😭

there are also optional properties you can pass in through props. the supported ones are:

• SDL_PROP_GPU_TRANSFERBUFFER_CREATE_NAME_STRING — a name that can show up in debugging tools. give your buffer a cute lil' government name so you can spot it in the debugger. 👑

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🫶 FUNCTION PARAMETERS 🫶

• device — a GPU Context. your whole entire GPU situation.
• createinfo — a struct describing the state of the transfer buffer you wanna create. it's giving "here's what I want, pls make it".

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⭐ RETURN VALUE ⭐

returns a transfer buffer on success 💖 … or NULL on failure 😭. if it fails, hit up SDL_GetError() for the more-info. don't just sit there staring at the NULL, bestie.

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🌈 AVAILABILITY 🌈

this function has been available since SDL 3.2.0. no cap.

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🔥 SEE ALSO 🔥

• SDL_UploadToGPUBuffer(3)
• SDL_DownloadFromGPUBuffer(3)
• SDL_UploadToGPUTexture(3)
• SDL_DownloadFromGPUTexture(3)
• SDL_ReleaseGPUTransferBuffer(3)

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and that's the whole page, periodt. 💜 brought to you by Simple Directmedia Layer, SDL 3.4.18, and this exact SDL_CreateGPUTransferBuffer(3) moment. go make some transfer buffers, icon. 🎀✨