Merge pull request #434 from Duck912/streamline-dlss

video_core: NVIDIA DLSS through NVIDIA Streamline in place of a game's DLSS

1 files changed, 36 insertions, 0 deletions

diff --git a/src/video_core/vulkan_common/streamline_api.h b/src/video_core/vulkan_common/streamline_api.h
new file mode 100644
index 0000000000..0a82c1dd7d
--- /dev/null
+++ b/src/video_core/vulkan_common/streamline_api.h
@@ -0,0 +1,36 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// Streamline's API as loaded from the user's sl.interposer.dll. Only for the
+// Streamline sources: it pulls in <windows.h> and Streamline's (MIT-licensed) headers.
+
+#pragma once
+
+#include <windows.h>
+
+#include "video_core/vulkan_common/vulkan_wrapper.h"
+
+#include <sl.h>
+#include <sl_dlss.h>
+#include <sl_helpers_vk.h>
+
+namespace Vulkan::Streamline {
+
+struct Api {
+    PFun_slInit* init{};
+    PFun_slShutdown* shutdown{};
+    PFun_slIsFeatureSupported* is_feature_supported{};
+    PFun_slGetFeatureRequirements* get_feature_requirements{};
+    PFun_slGetFeatureVersion* get_feature_version{};
+    PFun_slGetFeatureFunction* get_feature_function{};
+    PFun_slGetNewFrameToken* get_new_frame_token{};
+    PFun_slSetConstants* set_constants{};
+    PFun_slEvaluateFeature* evaluate_feature{};
+    PFun_slFreeResources* free_resources{};
+    PFun_slSetVulkanInfo* set_vulkan_info{};
+};
+
+/// The loaded functions; only valid while IsDlssAvailable().
+[[nodiscard]] const Api& GetApi();
+
+} // namespace Vulkan::Streamline