windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

This commit is contained in:
Dmitry Timoshkov 2012-07-25 11:25:35 +09:00 committed by Alexandre Julliard
parent 9f212a6c95
commit 2a08532cfb
1 changed files with 7 additions and 6 deletions

View File

@ -95,7 +95,7 @@ static HRESULT WINAPI IcoFrameDecode_QueryInterface(IWICBitmapFrameDecode *iface
IsEqualIID(&IID_IWICBitmapSource, iid) ||
IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
{
*ppv = This;
*ppv = &This->IWICBitmapFrameDecode_iface;
}
else
{
@ -446,9 +446,10 @@ static HRESULT WINAPI IcoDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IWICBitmapDecoder, iid))
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICBitmapDecoder, iid))
{
*ppv = This;
*ppv = &This->IWICBitmapDecoder_iface;
}
else
{
@ -692,7 +693,7 @@ static HRESULT WINAPI IcoDecoder_GetFrame(IWICBitmapDecoder *iface,
}
if (FAILED(hr)) goto fail;
*ppIBitmapFrame = (IWICBitmapFrameDecode*)result;
*ppIBitmapFrame = &result->IWICBitmapFrameDecode_iface;
LeaveCriticalSection(&This->lock);
@ -747,8 +748,8 @@ HRESULT IcoDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": IcoDecoder.lock");
ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
IUnknown_Release((IUnknown*)This);
ret = IWICBitmapDecoder_QueryInterface(&This->IWICBitmapDecoder_iface, iid, ppv);
IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
return ret;
}