Initial community commit

Src/playlist/plstring.cpp

@@ -0,0 +1,86 @@
+#include "plstring.h"
+#include "api__playlist.h"
+#include <shlwapi.h>
+#include <stdint.h>
+
+static wchar_t *_plstring_wcsdup( const wchar_t *str )
+{
+	if ( !str )
+		return 0;
+
+	size_t  len  = wcslen( str );
+	size_t *self = (size_t *)calloc( ( len + 1 ) * sizeof( wchar_t ), sizeof( size_t ) );
+	*self = 1;
+
+	wchar_t *new_str = (wchar_t *)( ( (int8_t *)self ) + sizeof( size_t ) );
+	memcpy( new_str, str, ( len + 1 ) * sizeof( wchar_t ) );
+
+	return new_str;
+}
+
+static wchar_t *_plstring_malloc( size_t str_size )
+{
+	size_t  *self    = (size_t *)calloc( ( str_size ), sizeof( size_t ) );
+	*self = 1;
+
+	wchar_t *new_str = (wchar_t *)( ( (int8_t *)self ) + sizeof( size_t ) );
+
+	return new_str;
+}
+
+static void _plstring_release( wchar_t *str )
+{
+	if ( str )
+	{
+		size_t *self = (size_t *)( ( (int8_t *)str ) - sizeof( size_t ) );
+		( *self )--;
+
+		if ( *self == 0 )
+			free( self );
+	}
+}
+
+static void _plstring_retain( wchar_t *str )
+{
+	if ( str )
+	{
+		size_t *self = (size_t *)( ( (int8_t *)str ) - sizeof( size_t ) );
+		( *self )++;
+	}
+}
+
+wchar_t *( *plstring_wcsdup )( const wchar_t *str ) = _plstring_wcsdup;
+wchar_t *( *plstring_malloc )( size_t str_size )    = _plstring_malloc;
+void     ( *plstring_release )( wchar_t *str )      = _plstring_release;
+void     ( *plstring_retain )( wchar_t *str )       = _plstring_retain;
+
+static bool ndestring_tried_load = false;
+
+void plstring_init()
+{
+	if ( !ndestring_tried_load )
+	{
+		wchar_t        path[ MAX_PATH ] = { 0 };
+		const wchar_t *PROGDIR          = WASABI_API_APP->path_getAppPath();
+
+		PathCombineW( path, PROGDIR, L"winamp.exe" );
+		HMODULE ndelib = LoadLibraryW( path );
+		if ( ndelib )
+		{
+			FARPROC ndestring_wcsdup  = GetProcAddress( ndelib, "plstring_wcsdup" );
+			FARPROC ndestring_malloc  = GetProcAddress( ndelib, "plstring_malloc" );
+			FARPROC ndestring_release = GetProcAddress( ndelib, "plstring_release" );
+			FARPROC ndestring_retain  = GetProcAddress( ndelib, "plstring_retain" );
+
+			if ( ndestring_wcsdup && ndestring_malloc && ndestring_release && ndestring_retain )
+			{
+				*(FARPROC *)&plstring_wcsdup  = *(FARPROC *)ndestring_wcsdup;
+				*(FARPROC *)&plstring_malloc  = *(FARPROC *)ndestring_malloc;
+				*(FARPROC *)&plstring_release = *(FARPROC *)ndestring_release;
+				*(FARPROC *)&plstring_retain  = *(FARPROC *)ndestring_retain;
+			}
+		}
+
+		ndestring_tried_load = true;
+	}
+}