BSPZip and BSPPack implementation

src/public/zip_utils.cpp

@@ -984,6 +984,22 @@ static void CopyTextData( char *pDst, const char *pSrc, int dstSize, int srcSize
 	Assert( pDstScan == pDstEnd );
 }
 
+#ifdef MAPBASE
+// https://github.com/ValveSoftware/source-sdk-2013/issues/1322
+// mp3s, shaders and specific wav files have de-compression issues
+static bool ShouldCompressFile( const char *name )
+{
+	const char *ext = V_GetFileExtensionSafe( name );
+
+	if ( !V_stricmp( ext, "mp3" )
+		|| !V_stricmp( ext, "vcs" )
+		|| !V_stricmp( ext, "wav" ) 
+		)
+		return false;
+	return true;
+}
+#endif
+
 //-----------------------------------------------------------------------------
 // Purpose: Adds a new lump, or overwrites existing one
 // Input  : *relativename - 
@@ -1021,6 +1037,11 @@ void CZipFile::AddBufferToZip( const char *relativename, void *data, int length,
 	CRC32_Final( &zipCRC );
 
 #ifdef ZIP_SUPPORT_LZMA_ENCODE
+#ifdef MAPBASE
+	if ( compressionType == IZip::eCompressionType_LZMA && !ShouldCompressFile( name ) )
+		compressionType = IZip::eCompressionType_None;
+#endif
+
 	if ( compressionType == IZip::eCompressionType_LZMA )
 	{
 		unsigned int compressedSize = 0;

src/utils/bsppack/bsppack.cpp

@@ -0,0 +1,74 @@
+// Created by ficool2 and posted in the Valve Modding Community Discord on 4/5/2025 
+#include "../common/cmdlib.h"
+#include "../common/bsplib.h"
+#include "ibsppack.h"
+
+static void SetFileSystem( IFileSystem* pFileSystem )
+{
+    g_pFullFileSystem = pFileSystem;
+    g_pFileSystem = pFileSystem;
+}
+
+class CBSPPack : public IBSPPack
+{
+public:
+    void LoadBSPFile( IFileSystem *pFileSystem, char *filename ) override
+    {
+        SetFileSystem( pFileSystem );
+        ::LoadBSPFile( filename );
+    }
+    void WriteBSPFile( char *filename ) override
+    {
+        ::WriteBSPFile( filename );
+    }
+    void ClearPackFile( void ) override
+    {
+        ::ClearPakFile( GetPakFile() );
+    }
+    void AddFileToPack( const char *relativename, const char *fullpath ) override
+    {
+        ::AddFileToPak( GetPakFile(), relativename, fullpath, IZip::eCompressionType_None );
+    }
+    void AddBufferToPack( const char *relativename, void *data, int length, bool bTextMode ) override
+    {
+        ::AddBufferToPak( GetPakFile(), relativename, data, length, bTextMode, IZip::eCompressionType_None );
+    }
+    void SetHDRMode( bool bHDR ) override
+    {
+        ::SetHDRMode( bHDR );
+    }
+    bool SwapBSPFile( IFileSystem *pFileSystem, const char *filename, const char *swapFilename, bool bSwapOnLoad, VTFConvertFunc_t pVTFConvertFunc, VHVFixupFunc_t pVHVFixupFunc, CompressFunc_t pCompressFunc ) override
+    {
+        SetFileSystem( pFileSystem );
+        return ::SwapBSPFile( filename, swapFilename, bSwapOnLoad, pVTFConvertFunc, pVHVFixupFunc, pCompressFunc );
+    }
+    bool RepackBSP( CUtlBuffer &inputBuffer, CUtlBuffer &outputBuffer, eRepackBSPFlags repackFlags ) override
+    {
+        CompressFunc_t funcCompress = NULL;
+        if ( repackFlags & eRepackBSP_CompressLumps )
+            funcCompress = RepackBSPCallback_LZMA;
+
+        IZip::eCompressionType eCompressType = IZip::eCompressionType_None;
+        if ( repackFlags & eRepackBSP_CompressPackfile )
+            eCompressType = IZip::eCompressionType_LZMA;
+
+        return ::RepackBSP( inputBuffer, outputBuffer, funcCompress, eCompressType );
+    }
+    bool GetPakFileLump( IFileSystem *pFileSystem, const char *pBSPFilename, void **pPakData, int *pPakSize ) override
+    {
+        SetFileSystem( pFileSystem );
+        return ::GetPakFileLump( pBSPFilename, pPakData, pPakSize );
+    }
+    bool SetPakFileLump( IFileSystem *pFileSystem, const char *pBSPFilename, const char *pNewFilename, void *pPakData, int pakSize ) override
+    {
+        SetFileSystem( pFileSystem );
+        return ::SetPakFileLump( pBSPFilename, pNewFilename, pPakData, pakSize );
+    }
+    bool GetBSPDependants( IFileSystem *pFileSystem, const char *pBSPFilename, CUtlVector< CUtlString > *pList ) override
+    {
+        SetFileSystem( pFileSystem );
+        return ::GetBSPDependants( pBSPFilename, pList );
+    }
+};
+
+EXPOSE_SINGLE_INTERFACE( CBSPPack, IBSPPack, IBSPPACK_VERSION_STRING );

src/utils/bsppack/bsppack.vpc

@@ -0,0 +1,51 @@
+//-----------------------------------------------------------------------------
+//	BSPPACK_DLL.VPC
+//
+//	Project Script
+//-----------------------------------------------------------------------------
+
+$Macro SRCDIR		"..\.."
+$Macro OUTBINDIR	"$SRCDIR\..\game\bin"
+$Macro OUTBINNAME	"bsppack"
+
+$Include "$SRCDIR\vpc_scripts\source_dll_base.vpc"
+
+$Configuration
+{
+	$Compiler
+	{
+		$AdditionalIncludeDirectories		"$BASE,..\common,..\vmpi,..\vmpi\mysql\include"
+		$PreprocessorDefinitions			"$BASE;PROTECTED_THINGS_DISABLE"
+		$PreprocessorDefinitions			"$BASE;MAPBASE;ZIP_SUPPORT_LZMA_ENCODE"
+	}
+}
+
+$Project "BSPPack"
+{
+	$Folder	"Source Files"
+	{
+		$File	"bsppack.cpp"
+
+		$File	"..\common\bsplib.cpp"
+		$File	"..\common\cmdlib.cpp"
+		$File	"$SRCDIR\public\filesystem_helpers.cpp"
+		$File	"$SRCDIR\public\zip_utils.cpp"
+		$File	"$SRCDIR\public\filesystem_init.cpp"
+		$File	"..\common\filesystem_tools.cpp"
+		$File	"..\common\scriplib.cpp"
+		$File	"$SRCDIR\public\lumpfiles.cpp"
+	}
+
+	$Folder	"Header Files"
+	{
+		$File	"..\common\bsplib.h"
+		$File	"..\common\cmdlib.h"
+	}
+
+	$Folder	"Link Libraries"
+	{
+		$Lib "mathlib"
+		$Lib tier2
+		$Lib "$LIBCOMMON/lzma"
+	}
+}