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https://github.com/skyline-emu/skyline.git
synced 2024-11-30 07:54:15 +01:00
Only allow submitting swapchainImageCount
images for host present at a time
Prevents situations where nothing would otherwise be waiting on the GPU and since presentation no longer blocks too many images would be submitted for presentation.
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@ -121,8 +121,12 @@ namespace skyline::gpu {
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throw exception("Setting the buffer transform to '{}' failed with {}", ToString(frame.transform), result);
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throw exception("Setting the buffer transform to '{}' failed with {}", ToString(frame.transform), result);
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windowTransform = frame.transform;
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windowTransform = frame.transform;
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auto &acquireSemaphore{acquireSemaphores[acquireSemaphoreIndex]};
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auto &acquireSemaphore{acquireSemaphores[frameIndex]};
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acquireSemaphoreIndex = (acquireSemaphoreIndex + 1) % swapchainImageCount;
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auto &frameFence{frameFences[frameIndex]};
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if (frameFence)
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frameFence->Wait();
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frameIndex = (frameIndex + 1) % swapchainImageCount;
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std::pair<vk::Result, u32> nextImage;
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std::pair<vk::Result, u32> nextImage;
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while (nextImage = vkSwapchain->acquireNextImage(std::numeric_limits<u64>::max(), *acquireSemaphore, {}), nextImage.first != vk::Result::eSuccess) [[unlikely]] {
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while (nextImage = vkSwapchain->acquireNextImage(std::numeric_limits<u64>::max(), *acquireSemaphore, {}), nextImage.first != vk::Result::eSuccess) [[unlikely]] {
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@ -142,6 +146,8 @@ namespace skyline::gpu {
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.layerCount = 1,
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.layerCount = 1,
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});
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});
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frameFence = nextImageTexture->cycle;
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auto getMonotonicNsNow{[]() -> i64 {
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auto getMonotonicNsNow{[]() -> i64 {
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timespec time;
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timespec time;
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if (clock_gettime(CLOCK_MONOTONIC, &time))
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if (clock_gettime(CLOCK_MONOTONIC, &time))
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@ -41,8 +41,9 @@ namespace skyline::gpu {
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static constexpr size_t MaxSwapchainImageCount{6}; //!< The maximum amount of swapchain textures, this affects the amount of images that can be in the swapchain
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static constexpr size_t MaxSwapchainImageCount{6}; //!< The maximum amount of swapchain textures, this affects the amount of images that can be in the swapchain
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std::array<std::shared_ptr<Texture>, MaxSwapchainImageCount> images; //!< All the swapchain textures in the same order as supplied by the host swapchain
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std::array<std::shared_ptr<Texture>, MaxSwapchainImageCount> images; //!< All the swapchain textures in the same order as supplied by the host swapchain
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std::array<vk::raii::Semaphore, MaxSwapchainImageCount> presentSemaphores; //!< Array of semaphores used to signal that swapchain images are ready to be completed, indexed by Vulkan swapchain index
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std::array<vk::raii::Semaphore, MaxSwapchainImageCount> presentSemaphores; //!< Array of semaphores used to signal that swapchain images are ready to be completed, indexed by Vulkan swapchain index
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std::array<vk::raii::Semaphore, MaxSwapchainImageCount> acquireSemaphores; //!< Array of semaphores used to wait on the GPU for swapchain images to be acquired, indexed by `acquireSemaphoreIndex`
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std::array<vk::raii::Semaphore, MaxSwapchainImageCount> acquireSemaphores; //!< Array of semaphores used to wait on the GPU for swapchain images to be acquired, indexed by `frameIndex`
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size_t acquireSemaphoreIndex{}; //!< The index of the next semaphore to be used for acquiring swapchain images
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std::array<std::shared_ptr<FenceCycle>, MaxSwapchainImageCount> frameFences{}; //!< Array of fences used to wait on the GPU for copying of swapchain images to be completed, indexed by `frameIndex`
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size_t frameIndex{}; //!< The index of the next semaphore/fence to be used for acquiring swapchain images
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size_t swapchainImageCount{}; //!< The number of images in the current swapchain
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size_t swapchainImageCount{}; //!< The number of images in the current swapchain
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i64 frameTimestamp{}; //!< The timestamp of the last frame being shown in nanoseconds
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i64 frameTimestamp{}; //!< The timestamp of the last frame being shown in nanoseconds
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