Implement Display Settings + Attach Texture to FenceCycle

app/src/main/cpp/skyline/common/settings.cpp

@@ -19,6 +19,8 @@ namespace skyline {
             PREF_ELEM("log_level", logLevel, static_cast<Logger::LogLevel>(element.text().as_uint(static_cast<unsigned int>(Logger::LogLevel::Info)))),
             PREF_ELEM("username_value", username, element.text().as_string()),
             PREF_ELEM("operation_mode", operationMode, element.attribute("value").as_bool()),
+            PREF_ELEM("force_triple_buffering", forceTripleBuffering, element.attribute("value").as_bool()),
+            PREF_ELEM("disable_frame_throttling", disableFrameThrottling, element.attribute("value").as_bool()),
         };
 
         #undef PREF_ELEM

app/src/main/cpp/skyline/common/settings.h

@@ -14,7 +14,8 @@ namespace skyline {
         Logger::LogLevel logLevel; //!< The minimum level that logs need to be for them to be printed
         std::string username; //!< The name set by the user to be supplied to the guest
         bool operationMode; //!< If the emulated Switch should be handheld or docked
-        bool forceTripleBuffering{true}; //!< If the presentation should always triple buffer even if the game double buffers
+        bool forceTripleBuffering; //!< If the presentation engine should always triple buffer even if the swapchain supports double buffering
+        bool disableFrameThrottling; //!< Allow the guest to submit frames without any blocking calls
 
         /**
          * @param fd An FD to the preference XML file

app/src/main/cpp/skyline/gpu/fence_cycle.h

@@ -114,35 +114,20 @@ namespace skyline::gpu {
          */
         void AttachObjects(std::initializer_list<std::shared_ptr<FenceCycleDependency>> dependencies) {
             if (!signalled.test(std::memory_order_consume)) {
-                {
-                    auto it{dependencies.begin()};
-                    while (it != dependencies.end()) {
-                        auto next{std::next(it)};
+                auto it{dependencies.begin()}, next{std::next(it)};
+                if (it != dependencies.end()) {
+                    while (next != dependencies.end()) {
                         (*it)->next = *next;
                         it = next;
+                        next = std::next(next);
                     }
                 }
-
-                const auto &first{*dependencies.begin()};
-                const auto &last{*dependencies.end()};
-                std::shared_ptr<FenceCycleDependency> next{std::atomic_load_explicit(&list, std::memory_order_consume)};
-                do {
-                    last->next = next;
-                    if (!next && signalled.test(std::memory_order_consume)) {
-                        std::shared_ptr<FenceCycleDependency> current{first};
-                        while (current) {
-                            next.swap(first->next);
-                            current.swap(next);
-                            next.reset();
-                        }
-                        return;
-                    }
-                } while (std::atomic_compare_exchange_strong(&list, &next, first));
+                AttachObject(*dependencies.begin());
             }
         }
 
         template<typename... Dependencies>
-        void AttachObjects(Dependencies... dependencies) {
+        void AttachObjects(Dependencies &&... dependencies) {
             AttachObjects(std::initializer_list<std::shared_ptr<FenceCycleDependency>>{std::forward<Dependencies>(dependencies)...});
         }
     };

app/src/main/cpp/skyline/gpu/presentation_engine.cpp

@@ -69,7 +69,7 @@ namespace skyline::gpu {
     }
 
     void PresentationEngine::UpdateSwapchain(texture::Format format, texture::Dimensions extent) {
-        auto minImageCount{std::max(vkSurfaceCapabilities.minImageCount, state.settings->forceTripleBuffering ? 3U : 0U)};
+        auto minImageCount{std::max(vkSurfaceCapabilities.minImageCount, state.settings->forceTripleBuffering ? 3U : 2U)};
         if (minImageCount > MaxSwapchainImageCount)
             throw exception("Requesting swapchain with higher image count ({}) than maximum slot count ({})", minImageCount, MaxSwapchainImageCount);
 
@@ -99,13 +99,14 @@ namespace skyline::gpu {
             .imageUsage = presentUsage,
             .imageSharingMode = vk::SharingMode::eExclusive,
             .compositeAlpha = vk::CompositeAlphaFlagBitsKHR::eInherit,
-            .presentMode = vk::PresentModeKHR::eMailbox,
+            .presentMode = state.settings->disableFrameThrottling ? vk::PresentModeKHR::eMailbox : vk::PresentModeKHR::eFifo,
             .clipped = true,
         });
 
         auto vkImages{vkSwapchain->getImages()};
         if (vkImages.size() > MaxSwapchainImageCount)
             throw exception("Swapchain has higher image count ({}) than maximum slot count ({})", minImageCount, MaxSwapchainImageCount);
+        state.logger->Error("Buffer Count: {}", vkImages.size());
 
         for (size_t index{}; index < vkImages.size(); index++) {
             auto &slot{images[index]};

app/src/main/cpp/skyline/gpu/texture/texture.cpp

@@ -262,8 +262,7 @@ namespace skyline::gpu {
                         },
                     });
             });
-
-            cycle->AttachObject(stagingBuffer);
+            cycle->AttachObjects(stagingBuffer, shared_from_this());
         }
     }
 
@@ -376,6 +375,6 @@ namespace skyline::gpu {
                     },
                 });
         });
-        cycle->AttachObject(source);
+        cycle->AttachObjects(source, shared_from_this());
     }
 }

app/src/main/cpp/skyline/gpu/texture/texture.h

@@ -224,7 +224,7 @@ namespace skyline::gpu {
      * @brief A texture which is backed by host constructs while being synchronized with the underlying guest texture
      * @note This class conforms to the Lockable and BasicLockable C++ named requirements
      */
-    class Texture : public FenceCycleDependency {
+    class Texture : public std::enable_shared_from_this<Texture>, public FenceCycleDependency {
       private:
         GPU &gpu;
         std::mutex mutex; //!< Synchronizes any mutations to the texture or its backing

app/src/main/java/emu/skyline/EmulationActivity.kt

@@ -212,7 +212,10 @@ class EmulationActivity : AppCompatActivity(), SurfaceHolder.Callback, View.OnTo
         }
 
         @Suppress("DEPRECATION") val display = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) display!! else windowManager.defaultDisplay
+        if (settings.maxRefreshRate)
             display?.supportedModes?.maxByOrNull { it.refreshRate * it.physicalHeight * it.physicalWidth }?.let { window.attributes.preferredDisplayModeId = it.modeId }
+        else
+            display?.supportedModes?.minByOrNull { abs(it.refreshRate - 60f) }?.let { window.attributes.preferredDisplayModeId = it.modeId }
 
         binding.gameView.setOnTouchListener(this)
 

app/src/main/java/emu/skyline/utils/Settings.kt

@@ -35,4 +35,6 @@ class Settings @Inject constructor(@ApplicationContext private val context : Con
     var logLevel by sharedPreferences(context, "3")
 
     var filter by sharedPreferences(context, 0)
+
+    var maxRefreshRate by sharedPreferences(context, false)
 }

app/src/main/res/values/strings.xml

@@ -25,7 +25,7 @@
     <string name="file_missing">The log file was not found</string>
     <string name="upload_logs">The logs are being uploaded</string>
     <string name="cleared">The logs have been cleared</string>
-    <!-- Settings -->
+    <!-- Settings - Emulator -->
     <string name="emulator">Emulator</string>
     <string name="search_location">Search Location</string>
     <string name="theme">Theme</string>
@@ -40,17 +40,30 @@
     <string name="log_compact">Compact Logs</string>
     <string name="log_compact_desc_on">Logs will be displayed in a compact form factor</string>
     <string name="log_compact_desc_off">Logs will be displayed in a verbose form factor</string>
+    <!-- Settings - System -->
     <string name="system">System</string>
     <string name="use_docked">Use Docked Mode</string>
     <string name="handheld_enabled">The system will emulate being in handheld mode</string>
     <string name="docked_enabled">The system will emulate being in docked mode</string>
     <string name="username">Username</string>
     <string name="username_default">@string/app_name</string>
+    <!-- Settings - Keys -->
     <string name="keys">Keys</string>
     <string name="prod_keys">Production Keys</string>
     <string name="title_keys">Title Keys</string>
     <string name="import_keys_success">Successfully imported keys</string>
     <string name="import_keys_failed">Failed to import keys</string>
+    <!-- Settings - Display -->
+    <string name="display">Display</string>
+    <string name="force_triple_buffering">Force Triple Buffering</string>
+    <string name="triple_buffering_enabled">Utilize at least 3 swapchain buffers (Higher FPS with higher input lag)</string>
+    <string name="triple_buffering_disabled">Utilize at least 2 swapchain buffers (Lower FPS with lower input lag)</string>
+    <string name="disable_frame_throttling">Disable Frame Throttling</string>
+    <string name="disable_frame_throttling_enabled">Game is allowed to submit frames as fast as possible (Only for benchmarking)</string>
+    <string name="disable_frame_throttling_disabled">Only allow the game to submit frames at the display refresh rate</string>
+    <string name="max_refresh_rate">Use Maximum Display Refresh Rate</string>
+    <string name="max_refresh_rate_enabled">Sets the display refresh rate as high as possible (Will break most games)</string>
+    <string name="max_refresh_rate_disabled">Sets the display refresh rate to 60Hz</string>
     <!-- Input -->
     <string name="input">Input</string>
     <string name="osc">On-Screen Controls</string>

app/src/main/res/xml/preferences.xml

@@ -45,11 +45,6 @@
             android:summaryOn="@string/log_compact_desc_on"
             app:key="log_compact"
             app:title="@string/log_compact" />
-        <emu.skyline.preference.CustomEditTextPreference
-                android:defaultValue="@string/username_default"
-                app:key="username_value"
-                app:limit="31"
-                app:title="@string/username" />
     </PreferenceCategory>
     <PreferenceCategory
         android:key="category_keys"
@@ -72,19 +67,39 @@
             android:summaryOn="@string/docked_enabled"
             app:key="operation_mode"
             app:title="@string/use_docked" />
+        <emu.skyline.preference.CustomEditTextPreference
+            android:defaultValue="@string/username_default"
+            app:key="username_value"
+            app:limit="31"
+            app:title="@string/username" />
+    </PreferenceCategory>
+    <PreferenceCategory
+        android:key="category_presentation"
+        android:title="@string/display">
+        <CheckBoxPreference
+            android:defaultValue="true"
+            android:summaryOff="@string/triple_buffering_disabled"
+            android:summaryOn="@string/triple_buffering_enabled"
+            app:key="force_triple_buffering"
+            app:title="@string/force_triple_buffering" />
+        <CheckBoxPreference
+            android:defaultValue="false"
+            android:dependency="force_triple_buffering"
+            android:summaryOff="@string/disable_frame_throttling_disabled"
+            android:summaryOn="@string/disable_frame_throttling_enabled"
+            app:key="disable_frame_throttling"
+            app:title="@string/disable_frame_throttling" />
+        <CheckBoxPreference
+            android:defaultValue="false"
+            android:summaryOff="@string/max_refresh_rate_disabled"
+            android:summaryOn="@string/max_refresh_rate_enabled"
+            app:key="max_refresh_rate"
+            app:title="@string/max_refresh_rate" />
     </PreferenceCategory>
     <PreferenceCategory
         android:key="category_input"
         android:title="@string/input"
         app:initialExpandedChildrenCount="4">
-        <!--
-        <CheckBoxPreference
-                android:defaultValue="true"
-                android:summaryOff="@string/osc_not_shown"
-                android:summaryOn="@string/osc_shown"
-                app:key="show_osc"
-                app:title="@string/show_osc" />
-        -->
         <emu.skyline.preference.ControllerPreference index="0" />
         <emu.skyline.preference.ControllerPreference index="1" />
         <emu.skyline.preference.ControllerPreference index="2" />