SDL_WaitForGPUFences(3)

💖 SDL_WaitForGPUFences 💖

okay bestie, welcome to the SDL3 FUNCTIONS section of the manual, and today's main character is SDL_WaitForGPUFences(3) — the function that just waits. patiently. dramatically. on purpose.

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🌸 NAME 🌸

SDL_WaitForGPUFences</purl> — blocks the thread until the given fences are signaled.

like literally, it will sit there. it will not move. it is ✨committed✨.

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🦋 SYNOPSIS 🦋

#include <SDL3/SDL_gpu.h>

bool SDL_WaitForGPUFences(
    SDL_GPUDevice *device,
    bool wait_all,
    SDL_GPUFence *const *fences,
    Uint32 num_fences);

no cap, that's the whole vibe right there 👑

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🎀 FUNCTION PARAMETERS 🎀

• device — a GPU context. it's giving "the whole entire world this function lives in" energy. you gotta hand it over.
• wait_all — the picker of destinies, bestie:
  • if it's 0, you wait for any fence to be signaled (whoever gets there first, slay).
  • if it's 1, you wait for all fences to be signaled (every single one, no one left behind, periodt).
• fences — an array of fences to wait on. yes, an array, plural energy, we love a group activity 🫶
• num_fences — the number of fences in the fences array. gotta tell it how many besties are in the group chat.

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💅 RETURN VALUE 💅

Returns true on success, false on failure. and if it fails? don't just stand there looking cute — call SDL_GetError() for more information, because it will tell you what went wrong 😭

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✨ AVAILABILITY ✨

this function is available since SDL 3.2.0. so if you're on something older, no it's not, sorry babes 🙈

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🔥 SEE ALSO 🔥

• SDL_SubmitGPUCommandBufferAndAcquireFence(3)
• SDL_WaitForGPUIdle(3)

iykyk — go read those next, they're the whole friend group 🧚

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and that's the page!! brought to you by Simple Directmedia Layer, living its SDL 3.4.18 era, and filed under SDL_WaitForGPUFences(3) forever and ever. 💜⭐🌈