[12/18] windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.
Dmitry Timoshkov
dmitry at baikal.ru
Tue Jul 24 01:12:17 CDT 2012
---
dlls/windowscodecs/jpegformat.c | 23 +++++++++++++----------
1 file changed, 13 insertions(+), 10 deletions(-)
diff --git a/dlls/windowscodecs/jpegformat.c b/dlls/windowscodecs/jpegformat.c
index 53d7ec4..2c77d4f 100644
--- a/dlls/windowscodecs/jpegformat.c
+++ b/dlls/windowscodecs/jpegformat.c
@@ -175,9 +175,10 @@ static HRESULT WINAPI JpegDecoder_QueryInterface(IWICBitmapDecoder *iface, REFII
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
{
@@ -469,6 +470,8 @@ static const IWICBitmapDecoderVtbl JpegDecoder_Vtbl = {
static HRESULT WINAPI JpegDecoder_Frame_QueryInterface(IWICBitmapFrameDecode *iface, REFIID iid,
void **ppv)
{
+ JpegDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
+
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
@@ -477,7 +480,7 @@ static HRESULT WINAPI JpegDecoder_Frame_QueryInterface(IWICBitmapFrameDecode *if
IsEqualIID(&IID_IWICBitmapSource, iid) ||
IsEqualIID(&IID_IWICBitmapFrameDecode, iid))
{
- *ppv = iface;
+ *ppv = &This->IWICBitmapFrameDecode_iface;
}
else
{
@@ -492,13 +495,13 @@ static HRESULT WINAPI JpegDecoder_Frame_QueryInterface(IWICBitmapFrameDecode *if
static ULONG WINAPI JpegDecoder_Frame_AddRef(IWICBitmapFrameDecode *iface)
{
JpegDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
- return IUnknown_AddRef((IUnknown*)This);
+ return IWICBitmapDecoder_AddRef(&This->IWICBitmapDecoder_iface);
}
static ULONG WINAPI JpegDecoder_Frame_Release(IWICBitmapFrameDecode *iface)
{
JpegDecoder *This = impl_from_IWICBitmapFrameDecode(iface);
- return IUnknown_Release((IUnknown*)This);
+ return IWICBitmapDecoder_Release(&This->IWICBitmapDecoder_iface);
}
static HRESULT WINAPI JpegDecoder_Frame_GetSize(IWICBitmapFrameDecode *iface,
@@ -722,8 +725,8 @@ HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JpegDecoder.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;
}
@@ -1219,7 +1222,7 @@ static HRESULT WINAPI JpegEncoder_QueryInterface(IWICBitmapEncoder *iface, REFII
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICBitmapEncoder, iid))
{
- *ppv = This;
+ *ppv = &This->IWICBitmapEncoder_iface;
}
else
{
@@ -1470,8 +1473,8 @@ HRESULT JpegEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
InitializeCriticalSection(&This->lock);
This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JpegEncoder.lock");
- ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
- IUnknown_Release((IUnknown*)This);
+ ret = IWICBitmapEncoder_QueryInterface(&This->IWICBitmapEncoder_iface, iid, ppv);
+ IWICBitmapEncoder_Release(&This->IWICBitmapEncoder_iface);
return ret;
}
--
1.7.11.2
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