[common, ui] Refining UI for FX shaders for PC (#4426)

Self-explanatory refinements on the already existing access/usage of post-processing shaders on Eden for PC UI.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4426
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: lizzie <lizzie@eden-emu.dev>

5 files changed, 110 insertions, 15 deletions

diff --git a/src/qt_common/config/shared_translation.cpp b/src/qt_common/config/shared_translation.cpp
index 0db439691f..4ef97c602a 100644
--- a/src/qt_common/config/shared_translation.cpp
+++ b/src/qt_common/config/shared_translation.cpp
@@ -151,6 +151,9 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QObject* parent) {
            tr("The anti-aliasing method to use.\nSMAA offers the best quality.\nFXAA "
               "can produce a more stable picture in lower resolutions."));
     INSERT(Settings, post_shader_chain, QString(), QString());
+    INSERT(Settings, post_shader_preset, QString(), QString());
+    INSERT(Settings, post_shader_enabled, tr("Enable post-processing effects"),
+           tr("Applies post-processing effects to the final image."));
     INSERT(Settings, fullscreen_mode, tr("Fullscreen Mode:"),
            tr("The method used to render the window in fullscreen.\nBorderless offers the best "
               "compatibility with the on-screen keyboard that some games request for "
diff --git a/src/yuzu/configuration/configure_graphics.cpp b/src/yuzu/configuration/configure_graphics.cpp
index f294403397..641f65d82a 100644
--- a/src/yuzu/configuration/configure_graphics.cpp
+++ b/src/yuzu/configuration/configure_graphics.cpp
@@ -37,6 +37,10 @@
 #include "yuzu/configuration/configure_graphics.h"
 #include "yuzu/configuration/shared_widget.h"
 
+#ifdef HAS_RESHADE
+#include "yuzu/configuration/configure_post_processing.h"
+#endif
+
 ConfigureGraphics::ConfigureGraphics(
     const Core::System& system_, std::vector<VkDeviceInfo::Record>& records_,
     const std::function<void()>& expose_compute_option_,
@@ -216,6 +220,12 @@ void ConfigureGraphics::Setup(const ConfigurationShared::Builder& builder) {
     std::vector<QWidget*> hold_api;
 
     for (const auto setting : Settings::values.linkage.by_category[Settings::Category::Renderer]) {
+#ifndef HAS_RESHADE
+        if (setting->Id() == Settings::values.post_shader_enabled.Id()) {
+            continue;
+        }
+#endif
+
         ConfigurationShared::Widget* widget = [&]() {
             if (setting->Id() == Settings::values.fsr_sharpening_slider.Id()) {
                 // FSR needs a reversed slider and a 0.5 multiplier
@@ -295,6 +305,23 @@ void ConfigureGraphics::Setup(const ConfigurationShared::Builder& builder) {
             // Keep track of the resolution combobox to update other UI tabs that need it
             resolution_combobox = widget->combobox;
             hold_graphics.emplace(setting->Id(), widget);
+#ifdef HAS_RESHADE
+        } else if (setting->Id() == Settings::values.post_shader_enabled.Id()) {
+            QPushButton* post_shader_button = new QPushButton(tr("Configure Effects..."), widget);
+            post_shader_button->setVisible(widget->checkbox->isChecked());
+
+            connect(post_shader_button, &QAbstractButton::clicked, this, [this]() {
+                ConfigurePostProcessing dialog(this);
+                dialog.exec();
+            });
+            connect(widget->checkbox, &QCheckBox::toggled, post_shader_button,
+                    &QWidget::setVisible);
+
+            QBoxLayout* row = qobject_cast<QBoxLayout*>(widget->layout());
+            row->insertWidget(1, post_shader_button);
+
+            hold_graphics.emplace(setting->Id(), widget);
+#endif
         } else {
             hold_graphics.emplace(setting->Id(), widget);
         }
diff --git a/src/yuzu/configuration/configure_post_processing.cpp b/src/yuzu/configuration/configure_post_processing.cpp
index 6fe46da6c5..659c3618f2 100644
--- a/src/yuzu/configuration/configure_post_processing.cpp
+++ b/src/yuzu/configuration/configure_post_processing.cpp
@@ -70,10 +70,8 @@ ConfigurePostProcessing::ConfigurePostProcessing(QWidget* parent) : QDialog(pare
 
     auto* root = new QVBoxLayout(this);
 
-    auto* description = new QLabel(
-        tr("ReShade FX effects are loaded from the post_shaders folder in the Eden data "
-           "directory. Changes apply immediately while a game is running."),
-        this);
+    auto* description =
+        new QLabel(tr("Changes apply immediately while a game is running."), this);
     description->setWordWrap(true);
     root->addWidget(description);
 
@@ -128,17 +126,15 @@ ConfigurePostProcessing::ConfigurePostProcessing(QWidget* parent) : QDialog(pare
     });
     preset_row->addWidget(save_button);
 
-    auto* delete_button = new QPushButton(tr("Delete"), this);
-    connect(delete_button, &QPushButton::clicked, this, [this]() {
-        const QString name = preset_combo->currentData().toString();
-        if (name.isEmpty()) {
-            return;
-        }
-        VideoCore::DeleteFxPreset(name.toStdString());
-        PopulatePresetCombo();
-        RefreshPresetStatus();
+    auto* clear_button = new QPushButton(tr("Clear"), this);
+    clear_button->setToolTip(tr("Remove every effect in use and deselect the preset."));
+    connect(clear_button, &QPushButton::clicked, this, [this]() {
+        VideoCore::FxChain::Instance().Clear();
+        VideoCore::SetActiveFxPreset(std::string());
+        preset_combo->setCurrentIndex(0);
+        ApplyStructuralChange();
     });
-    preset_row->addWidget(delete_button);
+    preset_row->addWidget(clear_button);
 
     root->addLayout(preset_row);
 
@@ -203,6 +199,7 @@ void ConfigurePostProcessing::ApplyStructuralChange() {
 void ConfigurePostProcessing::PopulatePresetCombo() {
     const QString previous = preset_combo->currentData().toString();
     preset_combo->clear();
+    preset_combo->addItem(tr("None"), QString());
 
     for (const auto& preset : VideoCore::GetFxPresetCatalog()) {
         const QString name = QString::fromStdString(preset.name);
@@ -212,7 +209,7 @@ void ConfigurePostProcessing::PopulatePresetCombo() {
     }
 
     const int restored = preset_combo->findData(previous);
-    if (restored >= 0) {
+    if (!previous.isEmpty() && restored >= 0) {
         preset_combo->setCurrentIndex(restored);
         return;
     }
@@ -220,12 +217,21 @@ void ConfigurePostProcessing::PopulatePresetCombo() {
     const int active = preset_combo->findData(QString::fromStdString(VideoCore::GetActiveFxPreset()));
     if (active >= 0) {
         preset_combo->setCurrentIndex(active);
+        return;
     }
+
+    preset_combo->setCurrentIndex(0);
 }
 
 void ConfigurePostProcessing::RefreshPresetStatus() {
     const std::string active = VideoCore::GetActiveFxPreset();
     if (active.empty()) {
+        if (VideoCore::FxChain::Instance().Size() == 0) {
+            preset_status->setText(
+                tr("No effects in use. Pick a preset and press Apply, or add effects one "
+                   "by one."));
+            return;
+        }
         preset_status->setText(tr("Custom chain. Pick a preset above and press Apply to replace it."));
         return;
     }
diff --git a/src/yuzu/main_window.cpp b/src/yuzu/main_window.cpp
index 95b91a4f38..1d579239a1 100644
--- a/src/yuzu/main_window.cpp
+++ b/src/yuzu/main_window.cpp
@@ -15,6 +15,7 @@
 #include "render/performance_overlay.h"
 #ifdef HAS_RESHADE
 #include "configuration/configure_post_processing.h"
+#include "video_core/post_processing/fx_preset.h"
 #endif
 #include "updater/update_dialog.h"
 
@@ -1090,6 +1091,41 @@ void MainWindow::InitializeWidgets() {
 
     statusBar()->insertPermanentWidget(0, volume_button);
 
+#ifdef HAS_RESHADE
+    post_shader_status_button = new QPushButton();
+    post_shader_status_button->setObjectName(QStringLiteral("TogglableStatusBarButton"));
+    post_shader_status_button->setFocusPolicy(Qt::NoFocus);
+    post_shader_status_button->setCheckable(true);
+    connect(post_shader_status_button, &QPushButton::clicked, this, [this] {
+        const bool enabled = Settings::values.post_shader_enabled.GetValue();
+        Settings::values.post_shader_enabled.SetValue(!enabled);
+        UpdatePostShaderText();
+    });
+    UpdatePostShaderText();
+    post_shader_status_button->setContextMenuPolicy(Qt::CustomContextMenu);
+    connect(post_shader_status_button, &QPushButton::customContextMenuRequested,
+            [this](const QPoint& menu_location) {
+                QMenu context_menu;
+
+                for (auto const& preset : VideoCore::GetFxPresetCatalog()) {
+                    context_menu.addAction(QString::fromStdString(preset.name),
+                                           [this, name = preset.name] {
+                                               VideoCore::ApplyFxPreset(name);
+                                               Settings::values.post_shader_enabled.SetValue(true);
+                                               UpdatePostShaderText();
+                                           });
+                }
+
+                context_menu.addSeparator();
+                context_menu.addAction(tr("Configure Effects..."), this,
+                                       &MainWindow::OnPostProcessingShaders);
+
+                context_menu.exec(post_shader_status_button->mapToGlobal(menu_location));
+                post_shader_status_button->repaint();
+            });
+    statusBar()->insertPermanentWidget(0, post_shader_status_button);
+#endif
+
     // setup AA button
     aa_status_button = new QPushButton();
     aa_status_button->setObjectName(QStringLiteral("TogglableStatusBarButton"));
@@ -3908,6 +3944,7 @@ void MainWindow::OnPostProcessingShaders() {
         connect(post_processing_dialog, &QDialog::finished, post_processing_dialog, [this]() {
             post_processing_dialog->deleteLater();
             post_processing_dialog = nullptr;
+            UpdatePostShaderText();
         });
     }
 
@@ -4262,6 +4299,26 @@ void MainWindow::UpdateAAText() {
                                   : aa_text.toUpper());
 }
 
+#ifdef HAS_RESHADE
+void MainWindow::UpdatePostShaderText() {
+    const bool enabled = Settings::values.post_shader_enabled.GetValue();
+    post_shader_status_button->setChecked(enabled);
+
+    if (!enabled) {
+        post_shader_status_button->setText(tr("NO FX"));
+        return;
+    }
+
+    const std::string preset = VideoCore::GetActiveFxPreset();
+    if (preset.empty()) {
+        post_shader_status_button->setText(tr("FX"));
+        return;
+    }
+
+    post_shader_status_button->setText(QString::fromStdString(preset).toUpper());
+}
+#endif
+
 void MainWindow::UpdateVolumeUI() {
     const auto volume_value = static_cast<int>(Settings::values.volume.GetValue());
     volume_slider->setValue(volume_value);
diff --git a/src/yuzu/main_window.h b/src/yuzu/main_window.h
index 2e92df135d..8aedeec721 100644
--- a/src/yuzu/main_window.h
+++ b/src/yuzu/main_window.h
@@ -448,6 +448,7 @@ private:
     void UpdateAPIText();
     void UpdateFilterText();
     void UpdateAAText();
+    void UpdatePostShaderText();
     void UpdateVolumeUI();
     void UpdateStatusBar();
     void UpdateGPUAccuracyButton();
@@ -524,6 +525,7 @@ private:
     QPushButton* dock_status_button = nullptr;
     QPushButton* filter_status_button = nullptr;
     QPushButton* aa_status_button = nullptr;
+    QPushButton* post_shader_status_button = nullptr;
     VolumeButton* volume_button = nullptr;
     QWidget* volume_popup = nullptr;
     QSlider* volume_slider = nullptr;