NAME

       SDL_AddVulkanRenderSemaphores - Add a set of synchronization semaphores for the current frame.

SYNOPSIS

       #include <SDL3/SDL_render.h>

       bool SDL_AddVulkanRenderSemaphores(SDL_Renderer *renderer, Uint32 wait_stage_mask, Sint64 wait_semaphore, Sint64 signal_semaphore);

DESCRIPTION

       The  Vulkan  renderer  will  wait  for  wait_semaphore  before  submitting  rendering commands and signal
       signal_semaphore after rendering commands are complete for this frame.

       This should be called each frame that you want semaphore synchronization. The Vulkan  renderer  may  have
       multiple  frames  in  flight  on  the  GPU,  so  you  should  have  multiple semaphores that are used for
       synchronization. Querying SDL_PROP_RENDERER_VULKAN_SWAPCHAIN_IMAGE_COUNT_NUMBER will give you the maximum
       number of semaphores you'll need.

FUNCTION PARAMETERS

       renderer
              the rendering context.

       wait_stage_mask
              the VkPipelineStageFlags for the wait.

       wait_semaphore
              a VkSempahore to wait on before rendering the current frame, or 0 if not needed.

       signal_semaphore
              a VkSempahore that SDL will signal when rendering for the current frame is complete, or 0  if  not
              needed.

RETURN VALUE

       for more information.

THREAD SAFETY

       It is NOT safe to call this function from two threads at once.

AVAILABILITY

       This function is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.20                   SDL_AddVulkanRenderSemaphores(3)