qt: Display OpenGL renderer name and add Mesa override to support Windows OpenGLOn12. (#7395)

src/citra_qt/CMakeLists.txt

@@ -179,6 +179,8 @@ add_executable(citra-qt
     qt_image_interface.h
     util/clickable_label.cpp
     util/clickable_label.h
+    util/graphics_device_info.cpp
+    util/graphics_device_info.h
     util/sequence_dialog/sequence_dialog.cpp
     util/sequence_dialog/sequence_dialog.h
     util/spinbox.cpp
@@ -187,13 +189,6 @@ add_executable(citra-qt
     util/util.h
 )
 
-if (ENABLE_VULKAN)
-    target_sources(citra-qt PRIVATE
-        util/vk_device_info.cpp
-        util/vk_device_info.h
-    )
-endif()
-
 file(GLOB COMPAT_LIST
      ${PROJECT_BINARY_DIR}/dist/compatibility_list/compatibility_list.qrc
      ${PROJECT_BINARY_DIR}/dist/compatibility_list/compatibility_list.json)

src/citra_qt/configuration/configure_dialog.cpp

@@ -23,14 +23,16 @@
 #include "ui_configure.h"
 
 ConfigureDialog::ConfigureDialog(QWidget* parent, HotkeyRegistry& registry_, Core::System& system_,
-                                 std::span<const QString> physical_devices, bool enable_web_config)
+                                 QString gl_renderer, std::span<const QString> physical_devices,
+                                 bool enable_web_config)
     : QDialog(parent), ui{std::make_unique<Ui::ConfigureDialog>()}, registry{registry_},
       system{system_}, is_powered_on{system.IsPoweredOn()},
       general_tab{std::make_unique<ConfigureGeneral>(this)},
       system_tab{std::make_unique<ConfigureSystem>(system, this)},
       input_tab{std::make_unique<ConfigureInput>(this)},
       hotkeys_tab{std::make_unique<ConfigureHotkeys>(this)},
-      graphics_tab{std::make_unique<ConfigureGraphics>(physical_devices, is_powered_on, this)},
+      graphics_tab{
+          std::make_unique<ConfigureGraphics>(gl_renderer, physical_devices, is_powered_on, this)},
       enhancements_tab{std::make_unique<ConfigureEnhancements>(this)},
       audio_tab{std::make_unique<ConfigureAudio>(is_powered_on, this)},
       camera_tab{std::make_unique<ConfigureCamera>(this)},

src/citra_qt/configuration/configure_dialog.h

@@ -37,7 +37,7 @@ class ConfigureDialog : public QDialog {
 
 public:
     explicit ConfigureDialog(QWidget* parent, HotkeyRegistry& registry, Core::System& system,
-                             std::span<const QString> physical_devices,
+                             QString gl_renderer, std::span<const QString> physical_devices,
                              bool enable_web_config = true);
     ~ConfigureDialog() override;
 

src/citra_qt/configuration/configure_graphics.cpp

@@ -12,17 +12,13 @@
 #include "video_core/renderer_vulkan/vk_instance.h"
 #endif
 
-ConfigureGraphics::ConfigureGraphics(std::span<const QString> physical_devices, bool is_powered_on,
+ConfigureGraphics::ConfigureGraphics(QString gl_renderer, std::span<const QString> physical_devices,
-                                     QWidget* parent)
+                                     bool is_powered_on, QWidget* parent)
     : QWidget(parent), ui(std::make_unique<Ui::ConfigureGraphics>()) {
     ui->setupUi(this);
 
     SetupPerGameUI();
 
-    for (const QString& name : physical_devices) {
-        ui->physical_device_combo->addItem(name);
-    }
-
     ui->graphics_api_combo->setEnabled(!is_powered_on);
     ui->physical_device_combo->setEnabled(!is_powered_on);
     ui->toggle_async_shaders->setEnabled(!is_powered_on);
@@ -37,11 +33,15 @@ ConfigureGraphics::ConfigureGraphics(std::span<const QString> physical_devices,
         graphics_api_combo_model->item(static_cast<u32>(Settings::GraphicsAPI::Software));
     software_item->setFlags(software_item->flags() & ~Qt::ItemIsEnabled);
 #endif
+
 #ifndef ENABLE_OPENGL
     const auto opengl_item =
         graphics_api_combo_model->item(static_cast<u32>(Settings::GraphicsAPI::OpenGL));
     opengl_item->setFlags(opengl_item->flags() & ~Qt::ItemIsEnabled);
+#else
+    ui->opengl_renderer_name_label->setText(gl_renderer);
 #endif
+
 #ifndef ENABLE_VULKAN
     const auto vulkan_item =
         graphics_api_combo_model->item(static_cast<u32>(Settings::GraphicsAPI::Vulkan));
@@ -54,6 +54,10 @@ ConfigureGraphics::ConfigureGraphics(std::span<const QString> physical_devices,
 
         ui->physical_device_combo->setVisible(false);
         ui->spirv_shader_gen->setVisible(false);
+    } else {
+        for (const QString& name : physical_devices) {
+            ui->physical_device_combo->addItem(name);
+        }
     }
 #endif
 
@@ -202,24 +206,24 @@ void ConfigureGraphics::SetupPerGameUI() {
 }
 
 void ConfigureGraphics::SetPhysicalDeviceComboVisibility(int index) {
-    bool is_visible{};
+    Settings::GraphicsAPI effective_api{};
 
     // When configuring per-game the physical device combo should be
     // shown either when the global api is used and that is Vulkan or
     // Vulkan is set as the per-game api.
     if (!Settings::IsConfiguringGlobal()) {
-        const auto global_graphics_api = Settings::values.graphics_api.GetValue(true);
         const bool using_global = index == 0;
-        if (!using_global) {
+        if (using_global) {
-            index -= ConfigurationShared::USE_GLOBAL_OFFSET;
+            effective_api = Settings::values.graphics_api.GetValue(true);
-        }
-        const auto graphics_api = static_cast<Settings::GraphicsAPI>(index);
-        is_visible = (using_global && global_graphics_api == Settings::GraphicsAPI::Vulkan) ||
-                     graphics_api == Settings::GraphicsAPI::Vulkan;
         } else {
-        const auto graphics_api = static_cast<Settings::GraphicsAPI>(index);
+            effective_api =
-        is_visible = graphics_api == Settings::GraphicsAPI::Vulkan;
+                static_cast<Settings::GraphicsAPI>(index - ConfigurationShared::USE_GLOBAL_OFFSET);
         }
-    ui->physical_device_group->setVisible(is_visible);
+    } else {
-    ui->spirv_shader_gen->setVisible(is_visible);
+        effective_api = static_cast<Settings::GraphicsAPI>(index);
+    }
+
+    ui->physical_device_group->setVisible(effective_api == Settings::GraphicsAPI::Vulkan);
+    ui->spirv_shader_gen->setVisible(effective_api == Settings::GraphicsAPI::Vulkan);
+    ui->opengl_renderer_group->setVisible(effective_api == Settings::GraphicsAPI::OpenGL);
 }

src/citra_qt/configuration/configure_graphics.h

@@ -21,8 +21,8 @@ class ConfigureGraphics : public QWidget {
     Q_OBJECT
 
 public:
-    explicit ConfigureGraphics(std::span<const QString> physical_devices, bool is_powered_on,
+    explicit ConfigureGraphics(QString gl_renderer, std::span<const QString> physical_devices,
-                               QWidget* parent = nullptr);
+                               bool is_powered_on, QWidget* parent = nullptr);
     ~ConfigureGraphics() override;
 
     void ApplyConfiguration();

src/citra_qt/configuration/configure_graphics.ui

@@ -101,6 +101,34 @@
         </layout>
        </widget>
       </item>
+      <item>
+       <widget class="QWidget" name="opengl_renderer_group" native="true">
+        <layout class="QHBoxLayout" name="opengl_renderer_group_2">
+         <property name="leftMargin">
+          <number>0</number>
+         </property>
+         <property name="topMargin">
+          <number>0</number>
+         </property>
+         <property name="rightMargin">
+          <number>0</number>
+         </property>
+         <property name="bottomMargin">
+          <number>0</number>
+         </property>
+         <item>
+          <widget class="QLabel" name="opengl_renderer_label">
+           <property name="text">
+            <string>OpenGL Renderer</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QLabel" name="opengl_renderer_name_label"/>
+         </item>
+        </layout>
+       </widget>
+      </item>
       <item>
        <widget class="QCheckBox" name="spirv_shader_gen">
         <property name="text">

src/citra_qt/configuration/configure_per_game.cpp

@@ -24,7 +24,8 @@
 #include "ui_configure_per_game.h"
 
 ConfigurePerGame::ConfigurePerGame(QWidget* parent, u64 title_id_, const QString& file_name,
-                                   std::span<const QString> physical_devices, Core::System& system_)
+                                   QString gl_renderer, std::span<const QString> physical_devices,
+                                   Core::System& system_)
     : QDialog(parent), ui(std::make_unique<Ui::ConfigurePerGame>()),
       filename{file_name.toStdString()}, title_id{title_id_}, system{system_} {
     const auto config_file_name = title_id == 0 ? std::string(FileUtil::GetFilename(filename))
@@ -35,7 +36,8 @@ ConfigurePerGame::ConfigurePerGame(QWidget* parent, u64 title_id_, const QString
     audio_tab = std::make_unique<ConfigureAudio>(is_powered_on, this);
     general_tab = std::make_unique<ConfigureGeneral>(this);
     enhancements_tab = std::make_unique<ConfigureEnhancements>(this);
-    graphics_tab = std::make_unique<ConfigureGraphics>(physical_devices, is_powered_on, this);
+    graphics_tab =
+        std::make_unique<ConfigureGraphics>(gl_renderer, physical_devices, is_powered_on, this);
     system_tab = std::make_unique<ConfigureSystem>(system, this);
     debug_tab = std::make_unique<ConfigureDebug>(is_powered_on, this);
     cheat_tab = std::make_unique<ConfigureCheats>(system.CheatEngine(), title_id, this);

src/citra_qt/configuration/configure_per_game.h

@@ -38,7 +38,8 @@ class ConfigurePerGame : public QDialog {
 
 public:
     explicit ConfigurePerGame(QWidget* parent, u64 title_id_, const QString& file_name,
-                              std::span<const QString> physical_devices, Core::System& system_);
+                              QString gl_renderer, std::span<const QString> physical_devices,
+                              Core::System& system_);
     ~ConfigurePerGame() override;
 
     /// Loads all button configurations to settings file

src/citra_qt/main.cpp

@@ -64,7 +64,7 @@
 #include "citra_qt/uisettings.h"
 #include "citra_qt/updater/updater.h"
 #include "citra_qt/util/clickable_label.h"
-#include "citra_qt/util/vk_device_info.h"
+#include "citra_qt/util/graphics_device_info.h"
 #include "common/arch.h"
 #include "common/common_paths.h"
 #include "common/detached_tasks.h"
@@ -270,6 +270,18 @@ GMainWindow::GMainWindow(Core::System& system_)
     connect(&mouse_hide_timer, &QTimer::timeout, this, &GMainWindow::HideMouseCursor);
     connect(ui->menubar, &QMenuBar::hovered, this, &GMainWindow::OnMouseActivity);
 
+#ifdef ENABLE_OPENGL
+    gl_renderer = GetOpenGLRenderer();
+#if defined(_WIN32)
+    if (gl_renderer.startsWith(QStringLiteral("D3D12"))) {
+        // OpenGLOn12 supports but does not yet advertise OpenGL 4.0+
+        // We can override the version here to allow Citra to work.
+        // TODO: Remove this when OpenGL 4.0+ is advertised.
+        qputenv("MESA_GL_VERSION_OVERRIDE", "4.6");
+    }
+#endif
+#endif
+
 #ifdef ENABLE_VULKAN
     physical_devices = GetVulkanPhysicalDevices();
     if (physical_devices.empty()) {
@@ -2158,7 +2170,7 @@ void GMainWindow::OnLoadState() {
 void GMainWindow::OnConfigure() {
     game_list->SetDirectoryWatcherEnabled(false);
     Settings::SetConfiguringGlobal(true);
-    ConfigureDialog configureDialog(this, hotkey_registry, system, physical_devices,
+    ConfigureDialog configureDialog(this, hotkey_registry, system, gl_renderer, physical_devices,
                                     !multiplayer_state->IsHostingPublicRoom());
     connect(&configureDialog, &ConfigureDialog::LanguageChanged, this,
             &GMainWindow::OnLanguageChanged);
@@ -3006,7 +3018,7 @@ void GMainWindow::OnConfigurePerGame() {
 
 void GMainWindow::OpenPerGameConfiguration(u64 title_id, const QString& file_name) {
     Settings::SetConfiguringGlobal(false);
-    ConfigurePerGame dialog(this, title_id, file_name, physical_devices, system);
+    ConfigurePerGame dialog(this, title_id, file_name, gl_renderer, physical_devices, system);
     const auto result = dialog.exec();
 
     if (result != QDialog::Accepted) {

src/citra_qt/main.h

@@ -344,6 +344,7 @@ private:
     // Whether game was paused due to stopping video dumping
     bool game_paused_for_dumping = false;
 
+    QString gl_renderer;
     std::vector<QString> physical_devices;
 
     // Debugger panes

src/citra_qt/util/graphics_device_info.cpp

@@ -2,9 +2,34 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include "citra_qt/util/vk_device_info.h"
+#include "citra_qt/util/graphics_device_info.h"
-#include "video_core/renderer_vulkan/vk_instance.h"
 
+#ifdef ENABLE_OPENGL
+#include <QOffscreenSurface>
+#include <QOpenGLContext>
+#include <QOpenGLFunctions>
+#endif
+
+#ifdef ENABLE_VULKAN
+#include "video_core/renderer_vulkan/vk_instance.h"
+#endif
+
+#ifdef ENABLE_OPENGL
+QString GetOpenGLRenderer() {
+    QOffscreenSurface surface;
+    surface.create();
+
+    QOpenGLContext context;
+    if (context.create()) {
+        context.makeCurrent(&surface);
+        return QString::fromUtf8(context.functions()->glGetString(GL_RENDERER));
+    } else {
+        return QStringLiteral("");
+    }
+}
+#endif
+
+#ifdef ENABLE_VULKAN
 std::vector<QString> GetVulkanPhysicalDevices() {
     std::vector<QString> result;
     try {
@@ -21,3 +46,4 @@ std::vector<QString> GetVulkanPhysicalDevices() {
 
     return result;
 }
+#endif

src/citra_qt/util/graphics_device_info.h

@@ -7,5 +7,12 @@
 #include <vector>
 #include <QString>
 
+#ifdef ENABLE_OPENGL
+/// Returns the name of the OpenGL renderer.
+QString GetOpenGLRenderer();
+#endif
+
+#ifdef ENABLE_VULKAN
 /// Returns a list of all available vulkan GPUs.
 std::vector<QString> GetVulkanPhysicalDevices();
+#endif