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Wait on Swapchain Image copy to complete

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Certain titles can have a display frames out of order due to not waiting on the copy from the final RT to the swapchain image to occur. Although `PresentFrame` does wait on the syncpoint, that isn't enough to ensure the source texture is up-to-date due to us signalling syncpoints early. 

By waiting on the swapchain texture after the copy is submitted, we now implicitly wait on the source texture's cycle to be signalled thus waiting on the frame to be done which fixes the issue.
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Billy Laws 2022-08-06 19:11:37 +01:00 committed by PixelyIon
parent 5b7572a8b3
commit 1fe6d92970
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1 changed files with 5 additions and 1 deletions
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6
app/src/main/cpp/skyline/gpu/presentation_engine.cpp
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@ -129,16 +129,20 @@ namespace skyline::gpu {
else
throw exception("vkAcquireNextImageKHR returned an unhandled result '{}'", vk::to_string(nextImage.first));
}
auto &nextImageTexture{images.at(nextImage.second)};
std::ignore = gpu.vkDevice.waitForFences(*acquireFence, true, std::numeric_limits<u64>::max());
texture->SynchronizeHost();
images.at(nextImage.second)->CopyFrom(texture, vk::ImageSubresourceRange{
nextImageTexture->CopyFrom(texture, vk::ImageSubresourceRange{
.aspectMask = vk::ImageAspectFlagBits::eColor,
.levelCount = 1,
.layerCount = 1,
});
// Wait on the copy to the swapchain image to complete before submitting for presentation
nextImageTexture->WaitOnFence();
auto getMonotonicNsNow{[]() -> i64 {
timespec time;
if (clock_gettime(CLOCK_MONOTONIC, &time))