Add nvprefs user override options

src/config.cpp

@@ -329,6 +329,8 @@ namespace config {
 
     {},  // nv
     true,  // nv_realtime_hags
+    true,  // nv_opengl_vulkan_on_dxgi
+    true,  // nv_sunshine_high_power_mode
     {},  // nv_legacy
 
     {
@@ -940,6 +942,8 @@ namespace config {
     generic_f(vars, "nvenc_twopass", video.nv.two_pass, nv::twopass_from_view);
     bool_f(vars, "nvenc_h264_cavlc", video.nv.h264_cavlc);
     bool_f(vars, "nvenc_realtime_hags", video.nv_realtime_hags);
+    bool_f(vars, "nvenc_opengl_vulkan_on_dxgi", video.nv_opengl_vulkan_on_dxgi);
+    bool_f(vars, "nvenc_latency_over_power", video.nv_sunshine_high_power_mode);
 
 #ifndef __APPLE__
     video.nv_legacy.preset = video.nv.quality_preset + 11;

src/config.h

@@ -30,6 +30,8 @@ namespace config {
 
     nvenc::nvenc_config nv;
     bool nv_realtime_hags;
+    bool nv_opengl_vulkan_on_dxgi;
+    bool nv_sunshine_high_power_mode;
 
     struct {
       int preset;

src/platform/windows/nvprefs/driver_settings.cpp

@@ -158,6 +158,11 @@ namespace nvprefs {
     undo_data.reset();
     NvAPI_Status status;
 
+    if (!get_nvprefs_options().opengl_vulkan_on_dxgi) {
+      // User requested to leave OpenGL/Vulkan DXGI swapchain setting alone
+      return true;
+    }
+
     NvDRSProfileHandle profile_handle = 0;
     status = NvAPI_DRS_GetBaseProfile(session_handle, &profile_handle);
     if (status != NVAPI_OK) {
@@ -260,9 +265,26 @@ namespace nvprefs {
     setting.version = NVDRS_SETTING_VER1;
     status = NvAPI_DRS_GetSetting(session_handle, profile_handle, PREFERRED_PSTATE_ID, &setting);
 
-    if (status != NVAPI_OK ||
-        setting.settingLocation != NVDRS_CURRENT_PROFILE_LOCATION ||
-        setting.u32CurrentValue != PREFERRED_PSTATE_PREFER_MAX) {
+    if (!get_nvprefs_options().sunshine_high_power_mode) {
+      if (status == NVAPI_OK &&
+          setting.settingLocation == NVDRS_CURRENT_PROFILE_LOCATION) {
+        // User requested to not use high power mode for sunshine.exe,
+        // remove the setting from application profile if it's been set previously
+
+        status = NvAPI_DRS_DeleteProfileSetting(session_handle, profile_handle, PREFERRED_PSTATE_ID);
+        if (status != NVAPI_OK && status != NVAPI_SETTING_NOT_FOUND) {
+          nvapi_error_message(status);
+          error_message("NvAPI_DRS_DeleteProfileSetting() PREFERRED_PSTATE failed");
+          return false;
+        }
+        modified = true;
+
+        info_message(std::wstring(L"Removed PREFERRED_PSTATE for ") + sunshine_application_path);
+      }
+    }
+    else if (status != NVAPI_OK ||
+             setting.settingLocation != NVDRS_CURRENT_PROFILE_LOCATION ||
+             setting.u32CurrentValue != PREFERRED_PSTATE_PREFER_MAX) {
       // Set power setting if needed
       setting = {};
       setting.version = NVDRS_SETTING_VER1;

src/platform/windows/nvprefs/nvprefs_common.cpp

@@ -2,6 +2,9 @@
 #include "nvprefs_common.h"
 #include "src/main.h"  // sunshine boost::log severity levels
 
+// read user override preferences from global sunshine config
+#include "src/config.h"
+
 namespace nvprefs {
 
   void
@@ -24,4 +27,12 @@ namespace nvprefs {
     BOOST_LOG(error) << "nvprefs: " << message;
   }
 
+  nvprefs_options
+  get_nvprefs_options() {
+    nvprefs_options options;
+    options.opengl_vulkan_on_dxgi = config::video.nv_opengl_vulkan_on_dxgi;
+    options.sunshine_high_power_mode = config::video.nv_sunshine_high_power_mode;
+    return options;
+  }
+
 }  // namespace nvprefs

src/platform/windows/nvprefs/nvprefs_common.h

@@ -45,4 +45,12 @@ namespace nvprefs {
   void
   error_message(const std::string &message);
 
+  struct nvprefs_options {
+    bool opengl_vulkan_on_dxgi = true;
+    bool sunshine_high_power_mode = true;
+  };
+
+  nvprefs_options
+  get_nvprefs_options();
+
 }  // namespace nvprefs