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redo presentation queue waiting

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This commit is contained in:
Greg Wells
2025-07-11 14:02:55 -04:00
parent 04a19fce18
commit 2def510f69
5 changed files with 52 additions and 12 deletions
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29
projects/apis/metal/src/presentation_queue/metal_presentation_queue.m
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@@ -48,18 +48,35 @@ gnReturnCode createMetalPresentationQueue(gnPresentationQueueHandle presentation
return GN_SUCCESS;
}
void mtlTakeImageFromQueue(uint32_t* whereToPut, gnPresentationQueue queue, gnSemaphore semaphore) {
*whereToPut = queue->presentationQueue->avaliableTextures.data[0];
uint32_tArrayListPopHead(&queue->presentationQueue->avaliableTextures);
if (semaphore) semaphore->semaphore->eventTriggered = gnTrue;
}
void mtlAddImageBackToQueue(gnPresentationQueue queue, uint32_t index) {
if (queue->presentationQueue->neededImages.count > 0)
mtlTakeImageFromQueue(queue->presentationQueue->neededImages.data[queue->presentationQueue->neededImages.count - 1].whereToPut, queue, queue->presentationQueue->neededImages.data[queue->presentationQueue->neededImages.count - 1].semaphoreToSignal);
else
uint32_tArrayListAdd(&queue->presentationQueue->avaliableTextures, index);
}
gnReturnCode getMetalPresentQueueImageAsync(gnPresentationQueueHandle presentationQueue, uint64_t timeout, gnSemaphore semaphore, uint32_t* imageIndex) {
while (presentationQueue->presentationQueue->avaliableTextures.count == 0) {}
*imageIndex = presentationQueue->presentationQueue->avaliableTextures.data[0];
uint32_tArrayListPopHead(&presentationQueue->presentationQueue->avaliableTextures);
semaphore->semaphore->eventTriggered = gnTrue;
if (presentationQueue->presentationQueue->avaliableTextures.count == 0) {
mtlImageNeeded image = {
.semaphoreToSignal = semaphore,
.whereToPut = imageIndex
};
mtlImageNeededArrayListAdd(&presentationQueue->presentationQueue->neededImages, image);
} else {
mtlTakeImageFromQueue(imageIndex, presentationQueue, semaphore);
}
return GN_SUCCESS;
}
gnReturnCode getMetalPresentQueueImage(gnPresentationQueueHandle presentationQueue, uint32_t* imageIndex) {
while (presentationQueue->presentationQueue->avaliableTextures.count == 0) {}
*imageIndex = presentationQueue->presentationQueue->avaliableTextures.data[0];
uint32_tArrayListPopHead(&presentationQueue->presentationQueue->avaliableTextures);
mtlTakeImageFromQueue(imageIndex, presentationQueue, NULL);
return GN_SUCCESS;
}