Overhaul race and lod combos in mdlviewer

The number of lods are now properly loaded from the model data, and race
is checked by checking for the existence of race-specific models (I
think this is the current best way?).

Also, magic_enum is added as a dependency for some enum magic involving
enumerating Race.

CMakeLists.txt

@@ -10,6 +10,8 @@ add_subdirectory(libxiv)
 
 include(FetchContent)
 
+add_subdirectory(extern/magic_enum)
+
 find_package(fmt QUIET)
 
 if(TARGET fmt::fmt)

extern/magic_enum/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_library(magic_enum INTERFACE)
+target_include_directories(magic_enum INTERFACE include)

libxiv

@@ -1 +1 @@
-Subproject commit c78a1ab2458d18ddd92fc2728e3eedd95fdc4078
+Subproject commit 872bef51bb32792750a7b2a392385fb41158ead6

mdlviewer/CMakeLists.txt

@@ -12,7 +12,8 @@ target_link_libraries(mdlviewer PUBLIC
         Qt5::Core
         Qt5::Widgets
         renderer
-        assimp::assimp)
+        assimp::assimp
+        magic_enum)
 
 install(TARGETS mdlviewer
         DESTINATION "${INSTALL_BIN_PATH}")

mdlviewer/include/mainwindow.h

@@ -2,6 +2,7 @@
 
 #include <QMainWindow>
 #include <unordered_map>
+#include <QComboBox>
 
 #include "renderer.hpp"
 #include "types/slot.h"
@@ -25,13 +26,24 @@ class MainWindow : public QMainWindow {
 public:
     MainWindow(GameData& data);
 
-    void refreshModel();
-
     void exportModel(Model& model, QString fileName);
 
 private:
+    void loadInitialGearInfo(GearInfo& info);
+    void reloadGearModel();
+    void reloadGearAppearance();
+
     std::vector<GearInfo> gears;
-    std::vector<GearInfo*> loadedGears;
+
+    struct LoadedGear {
+        GearInfo* gearInfo;
+        Model model;
+        RenderModel renderModel;
+    };
+
+    LoadedGear loadedGear;
+
+    QComboBox* raceCombo, *lodCombo;
 
     Race currentRace = Race::HyurMidlanderMale;
     int currentLod = 0;

mdlviewer/src/mainwindow.cpp

@@ -16,6 +16,7 @@
 #include <assimp/postprocess.h>
 #include <QPushButton>
 #include <QFileDialog>
+#include <magic_enum.hpp>
 
 #include "gamedata.h"
 #include "exhparser.h"
@@ -163,29 +164,20 @@ MainWindow::MainWindow(GameData& data) : data(data) {
     QHBoxLayout* controlLayout = new QHBoxLayout();
     viewportLayout->addLayout(controlLayout);
 
-    QComboBox* raceCombo = new QComboBox();
-    raceCombo->addItem("Midlander Male");
-    raceCombo->addItem("Midlander Female");
-
-    /*for(auto [race, raceName] : raceNames) {
-        raceCombo->addItem(raceName.data());
-    }*/
+    raceCombo = new QComboBox();
 
     connect(raceCombo, qOverload<int>(&QComboBox::currentIndexChanged), [this](int index) {
         currentRace = (Race)index;
-        refreshModel();
+        reloadGearModel();
     });
 
     controlLayout->addWidget(raceCombo);
 
-    auto lodCombo = new QComboBox();
-    lodCombo->addItem("0");
-    lodCombo->addItem("1");
-    lodCombo->addItem("2");
+    lodCombo = new QComboBox();
 
     connect(lodCombo, qOverload<int>(&QComboBox::currentIndexChanged), [this](int index) {
         currentLod = index;
-        refreshModel();
+        reloadGearAppearance();
     });
 
     controlLayout->addWidget(lodCombo);
@@ -210,33 +202,14 @@ MainWindow::MainWindow(GameData& data) : data(data) {
 
     connect(listWidget, &QListWidget::itemClicked, [this](QListWidgetItem* item) {
         for(auto& gear : gears) {
-            if(gear.name == item->text().toStdString())
-                loadedGears = {&gear};
+            if(gear.name == item->text().toStdString()) {
+                loadInitialGearInfo(gear);
+                return;
+            }
         }
-
-        refreshModel();
     });
 }
 
-void MainWindow::refreshModel() {
-#ifdef USE_STANDALONE_WINDOW
-    standaloneWindow->models.clear();
-#else
-    vkWindow->models.clear();
-#endif
-
-    for(auto gear : loadedGears) {
-        auto mdl_data = data.extractFile(build_equipment_path(gear->modelInfo.primaryID, currentRace, gear->slot));
-        auto model = parseMDL(*mdl_data);
-
-#ifndef USE_STANDALONE_WINDOW
-        vkWindow->models.push_back(renderer->addModel(model, currentLod));
-#else
-        standaloneWindow->models.push_back(renderer->addModel(model, currentLod));
-#endif
-    }
-}
-
 void MainWindow::exportModel(Model& model, QString fileName) {
     Assimp::Exporter exporter;
 
@@ -289,3 +262,42 @@ void MainWindow::exportModel(Model& model, QString fileName) {
 
     exporter.Export(&scene, "fbx", fileName.toStdString());
 }
+
+void MainWindow::loadInitialGearInfo(GearInfo& info) {
+    loadedGear.gearInfo = &info;
+
+    raceCombo->clear();
+    for(auto [race, race_name] : magic_enum::enum_entries<Race>()) {
+        if(data.exists(build_equipment_path(loadedGear.gearInfo->modelInfo.primaryID, race, loadedGear.gearInfo->slot)))
+            raceCombo->addItem(race_name.data());
+    }
+
+    currentLod = 0;
+    currentRace = Race::HyurMidlanderMale;
+
+    reloadGearModel();
+}
+
+void MainWindow::reloadGearModel() {
+    auto mdl_data = data.extractFile(build_equipment_path(loadedGear.gearInfo->modelInfo.primaryID, currentRace, loadedGear.gearInfo->slot));
+    if(mdl_data == std::nullopt)
+        return;
+
+    loadedGear.model = parseMDL(*mdl_data);
+
+    lodCombo->clear();
+    for(int i = 0; i < loadedGear.model.lods.size(); i++)
+        lodCombo->addItem(QString::number(i));
+
+    reloadGearAppearance();
+}
+
+void MainWindow::reloadGearAppearance() {
+    loadedGear.renderModel = renderer->addModel(loadedGear.model, currentLod);
+
+#ifndef USE_STANDALONE_WINDOW
+    vkWindow->models = {loadedGear.renderModel};
+#else
+    standaloneWindow->models = {loadedGear.renderModel};
+#endif
+}

renderer/src/renderer.cpp

@@ -512,6 +512,9 @@ RenderModel Renderer::addModel(const Model& model, int lod) {
     RenderModel renderModel;
     renderModel.model = model;
 
+    if(lod < 0 || lod > model.lods.size())
+        return {};
+
     for(auto part : model.lods[lod].parts) {
         RenderPart renderPart;