Add AssetLoader for IW5 StringTable

src/Common/Game/IW5/CommonIW5.cpp

@@ -4,6 +4,22 @@
 
 using namespace IW5;
 
+int Common::StringTable_HashString(const char* str)
+{
+    if (!str)
+        return 0;
+
+    auto result = 0;
+    auto offset = 0;
+    while (str[offset])
+    {
+        const auto c = tolower(str[offset++]);
+        result = c + 31 * result;
+    }
+
+    return result;
+}
+
 PackedTexCoords Common::Vec2PackTexCoords(const vec2_t* in)
 {
     return PackedTexCoords{ Pack32::Vec2PackTexCoords(reinterpret_cast<const float*>(in)) };

src/Common/Game/IW5/CommonIW5.h

@@ -7,6 +7,8 @@ namespace IW5
     class Common
     {
     public:
+        static int StringTable_HashString(const char* str);
+
         static PackedTexCoords Vec2PackTexCoords(const vec2_t* in);
         static PackedUnitVec Vec3PackUnitVec(const vec3_t* in);
         static GfxColor Vec4PackGfxColor(const vec4_t* in);

src/ObjLoading/Game/IW5/AssetLoaders/AssetLoaderStringTable.cpp

@@ -0,0 +1,79 @@
+#include "AssetLoaderStringTable.h"
+
+#include <cstring>
+
+#include "ObjLoading.h"
+#include "Csv/CsvStream.h"
+#include "Game/IW5/CommonIW5.h"
+#include "Game/IW5/IW5.h"
+#include "Pool/GlobalAssetPool.h"
+
+using namespace IW5;
+
+void* AssetLoaderStringTable::CreateEmptyAsset(const std::string& assetName, MemoryManager* memory)
+{
+    auto* stringTable = memory->Create<StringTable>();
+    memset(stringTable, 0, sizeof(StringTable));
+    stringTable->name = memory->Dup(assetName.c_str());
+    return stringTable;
+}
+
+bool AssetLoaderStringTable::CanLoadFromRaw() const
+{
+    return true;
+}
+
+bool AssetLoaderStringTable::LoadFromRaw(const std::string& assetName, ISearchPath* searchPath, MemoryManager* memory, IAssetLoadingManager* manager, Zone* zone) const
+{
+    const auto file = searchPath->Open(assetName);
+    if (!file.IsOpen())
+        return false;
+
+    auto* stringTable = memory->Create<StringTable>();
+    stringTable->name = memory->Dup(assetName.c_str());
+
+    std::vector<std::vector<std::string>> csvLines;
+    std::vector<std::string> currentLine;
+    auto maxCols = 0u;
+    const CsvInputStream csv(*file.m_stream);
+
+    while (csv.NextRow(currentLine))
+    {
+        if (currentLine.size() > maxCols)
+            maxCols = currentLine.size();
+        csvLines.emplace_back(std::move(currentLine));
+        currentLine = std::vector<std::string>();
+    }
+
+    stringTable->columnCount = static_cast<int>(maxCols);
+    stringTable->rowCount = static_cast<int>(csvLines.size());
+    const auto cellCount = static_cast<unsigned>(stringTable->rowCount) * static_cast<unsigned>(stringTable->columnCount);
+
+    if (cellCount)
+    {
+        stringTable->values = static_cast<StringTableCell*>(memory->Alloc(sizeof(StringTableCell) * cellCount));
+
+        for (auto row = 0u; row < csvLines.size(); row++)
+        {
+            const auto& rowValues = csvLines[row];
+            for (auto col = 0u; col < maxCols; col++)
+            {
+                auto& cell = stringTable->values[row * maxCols + col];
+                if (col >= rowValues.size() || rowValues[col].empty())
+                    cell.string = "";
+                else
+                    cell.string = memory->Dup(rowValues[col].c_str());
+
+                cell.hash = Common::StringTable_HashString(cell.string);
+            }
+        }
+    }
+    else
+    {
+        stringTable->values = nullptr;
+    }
+
+    manager->AddAsset(ASSET_TYPE_STRINGTABLE, assetName, stringTable);
+
+    return true;
+}

src/ObjLoading/Game/IW5/AssetLoaders/AssetLoaderStringTable.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include "Game/IW5/IW5.h"
+#include "AssetLoading/BasicAssetLoader.h"
+#include "SearchPath/ISearchPath.h"
+
+namespace IW5
+{
+    class AssetLoaderStringTable final : public BasicAssetLoader<ASSET_TYPE_STRINGTABLE, StringTable>
+    {
+    public:
+        _NODISCARD void* CreateEmptyAsset(const std::string& assetName, MemoryManager* memory) override;
+        _NODISCARD bool CanLoadFromRaw() const override;
+        bool LoadFromRaw(const std::string& assetName, ISearchPath* searchPath, MemoryManager* memory, IAssetLoadingManager* manager, Zone* zone) const override;
+    };
+}

src/ObjLoading/Game/IW5/ObjLoaderIW5.cpp

@@ -6,6 +6,7 @@
 #include "ObjLoading.h"
 #include "AssetLoaders/AssetLoaderLocalizeEntry.h"
 #include "AssetLoaders/AssetLoaderRawFile.h"
+#include "AssetLoaders/AssetLoaderStringTable.h"
 #include "AssetLoading/AssetLoadingManager.h"
 #include "Image/Dx9TextureLoader.h"
 #include "Image/Texture.h"
@@ -53,7 +54,7 @@ ObjLoader::ObjLoader()
     REGISTER_ASSET_LOADER(BASIC_LOADER(ASSET_TYPE_SURFACE_FX, SurfaceFxTable))
     REGISTER_ASSET_LOADER(AssetLoaderRawFile)
     REGISTER_ASSET_LOADER(BASIC_LOADER(ASSET_TYPE_SCRIPTFILE, ScriptFile))
-    REGISTER_ASSET_LOADER(BASIC_LOADER(ASSET_TYPE_STRINGTABLE, StringTable))
+    REGISTER_ASSET_LOADER(AssetLoaderStringTable)
     REGISTER_ASSET_LOADER(BASIC_LOADER(ASSET_TYPE_LEADERBOARD, LeaderboardDef))
     REGISTER_ASSET_LOADER(BASIC_LOADER(ASSET_TYPE_STRUCTURED_DATA_DEF, StructuredDataDefSet))
     REGISTER_ASSET_LOADER(BASIC_LOADER(ASSET_TYPE_TRACER, TracerDef))