winamp/Src/playlist/plstring.cpp

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2024-09-24 12:54:57 +00:00
#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;
}
}