IW5 support initial commit

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

@@ -0,0 +1,43 @@
+#include "AssetLoaderRawFile.h"
+
+#include <cstring>
+
+#include "Game/IW5/IW5.h"
+#include "Pool/GlobalAssetPool.h"
+
+using namespace IW5;
+
+void* AssetLoaderRawFile::CreateEmptyAsset(const std::string& assetName, MemoryManager* memory)
+{
+    auto* rawFile = memory->Create<RawFile>();
+    memset(rawFile, 0, sizeof(RawFile));
+    rawFile->name = memory->Dup(assetName.c_str());
+    return rawFile;
+}
+
+bool AssetLoaderRawFile::CanLoadFromRaw() const
+{
+    return true;
+}
+
+bool AssetLoaderRawFile::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* rawFile = memory->Create<RawFile>();
+    rawFile->name = memory->Dup(assetName.c_str());
+    rawFile->len = static_cast<int>(file.m_length);
+
+    auto* fileBuffer = static_cast<char*>(memory->Alloc(static_cast<size_t>(file.m_length + 1)));
+    file.m_stream->read(fileBuffer, file.m_length);
+    if (file.m_stream->gcount() != file.m_length)
+        return false;
+    fileBuffer[rawFile->len] = '\0';
+
+    rawFile->data.buffer = fileBuffer;
+    manager->AddAsset(ASSET_TYPE_RAWFILE, assetName, rawFile);
+
+    return true;
+}