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windowscodecs: Implement Commit for the PNG encoder.

This commit is contained in:
Vincent Povirk 2009-09-23 17:21:46 -05:00 committed by Alexandre Julliard
parent e7eadeec92
commit 3db6ef4980
1 changed files with 11 additions and 2 deletions
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13
dlls/windowscodecs/pngformat.c
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@ -715,6 +715,7 @@ typedef struct PngEncoder {
double xres, yres;
UINT lines_written;
BOOL frame_committed;
BOOL committed;
} PngEncoder;
static inline PngEncoder *encoder_from_frame(IWICBitmapFrameEncode *iface)
@ -1195,8 +1196,15 @@ static HRESULT WINAPI PngEncoder_CreateNewFrame(IWICBitmapEncoder *iface,
static HRESULT WINAPI PngEncoder_Commit(IWICBitmapEncoder *iface)
{
TRACE("(%p): stub\n", iface);
return E_NOTIMPL;
PngEncoder *This = (PngEncoder*)iface;
TRACE("(%p)\n", iface);
if (!This->frame_committed || This->committed)
return WINCODEC_ERR_WRONGSTATE;
This->committed = TRUE;
return S_OK;
}
static HRESULT WINAPI PngEncoder_GetMetadataQueryWriter(IWICBitmapEncoder *iface,
@ -1258,6 +1266,7 @@ HRESULT PngEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
This->yres = 0.0;
This->lines_written = 0;
This->frame_committed = FALSE;
This->committed = FALSE;
ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
IUnknown_Release((IUnknown*)This);