winamp/Src/Plugins/Library/ml_nowplaying/common.cpp

147 lines
3.1 KiB
C++

#include "./common.h"
#include "./wasabi.h"
#include <strsafe.h>
LPWSTR Plugin_MallocString(size_t cchLen)
{
return (LPWSTR)calloc(cchLen, sizeof(WCHAR));
}
void Plugin_FreeString(LPWSTR pszString)
{
if (NULL != pszString)
{
free(pszString);
}
}
LPWSTR Plugin_ReAllocString(LPWSTR pszString, size_t cchLen)
{
return (LPWSTR)realloc(pszString, sizeof(WCHAR) * cchLen);
}
LPWSTR Plugin_CopyString(LPCWSTR pszSource)
{
if (NULL == pszSource)
return NULL;
INT cchSource = lstrlenW(pszSource) + 1;
LPWSTR copy = Plugin_MallocString(cchSource);
if (NULL != copy)
{
CopyMemory(copy, pszSource, sizeof(WCHAR) * cchSource);
}
return copy;
}
LPSTR Plugin_MallocAnsiString(size_t cchLen)
{
return (LPSTR)calloc(cchLen, sizeof(CHAR));
}
LPSTR Plugin_CopyAnsiString(LPCSTR pszSource)
{
if (NULL == pszSource)
return NULL;
INT cchSource = lstrlenA(pszSource) + 1;
LPSTR copy = Plugin_MallocAnsiString(cchSource);
if (NULL != copy)
{
CopyMemory(copy, pszSource, sizeof(CHAR) * cchSource);
}
return copy;
}
void Plugin_FreeAnsiString(LPSTR pszString)
{
Plugin_FreeString((LPWSTR)pszString);
}
LPSTR Plugin_WideCharToMultiByte(UINT codePage, DWORD dwFlags, LPCWSTR lpWideCharStr, INT cchWideChar, LPCSTR lpDefaultChar, LPBOOL lpUsedDefaultChar)
{
INT cchBuffer = WideCharToMultiByte(codePage, dwFlags, lpWideCharStr, cchWideChar, NULL, 0, lpDefaultChar, lpUsedDefaultChar);
if (0 == cchBuffer) return NULL;
LPSTR buffer = Plugin_MallocAnsiString(cchBuffer);
if (NULL == buffer) return NULL;
if (0 == WideCharToMultiByte(codePage, dwFlags, lpWideCharStr, cchWideChar, buffer, cchBuffer, lpDefaultChar, lpUsedDefaultChar))
{
Plugin_FreeAnsiString(buffer);
return NULL;
}
return buffer;
}
LPWSTR Plugin_MultiByteToWideChar(UINT codePage, DWORD dwFlags, LPCSTR lpMultiByteStr, INT cbMultiByte)
{
if (NULL == lpMultiByteStr) return NULL;
INT cchBuffer = MultiByteToWideChar(codePage, dwFlags, lpMultiByteStr, cbMultiByte, NULL, 0);
if (NULL == cchBuffer) return NULL;
if (cbMultiByte > 0) cchBuffer++;
LPWSTR buffer = Plugin_MallocString(cchBuffer);
if (NULL == buffer) return NULL;
if (0 == MultiByteToWideChar(codePage, dwFlags, lpMultiByteStr, cbMultiByte, buffer, cchBuffer))
{
Plugin_FreeString(buffer);
return NULL;
}
if (cbMultiByte > 0)
{
buffer[cchBuffer - 1] = L'\0';
}
return buffer;
}
LPWSTR Plugin_DuplicateResString(LPCWSTR pszResource)
{
return (IS_INTRESOURCE(pszResource)) ?
(LPWSTR)pszResource :
Plugin_CopyString(pszResource);
}
void Plugin_FreeResString(LPWSTR pszResource)
{
if (!IS_INTRESOURCE(pszResource))
Plugin_FreeString(pszResource);
}
HRESULT Plugin_CopyResString(LPWSTR pszBuffer, INT cchBufferMax, LPCWSTR pszString)
{
if (NULL == pszBuffer)
return E_INVALIDARG;
HRESULT hr = S_OK;
if (NULL == pszString)
{
pszBuffer[0] = L'\0';
}
else if (IS_INTRESOURCE(pszString))
{
if (NULL == WASABI_API_LNG)
hr = E_FAIL;
else
WASABI_API_LNGSTRINGW_BUF((INT)(INT_PTR)pszString, pszBuffer, cchBufferMax);
}
else
{
hr = StringCchCopy(pszBuffer, cchBufferMax, pszString);
}
return hr;
}
void Plugin_SafeRelease(IUnknown *pUnk)
{
if (NULL != pUnk)
pUnk->Release();
}