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windowscodecs: Add support for preferred vendor guid in CreateDecoderFromStream.

This commit is contained in:
Dmitry Timoshkov 2012-05-28 18:41:27 +09:00 committed by Alexandre Julliard
parent 74d53af5fd
commit fd31112ab0
1 changed files with 32 additions and 11 deletions
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43
dlls/windowscodecs/imgfactory.c
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@ -122,11 +122,11 @@ static HRESULT WINAPI ImagingFactory_CreateDecoderFromStream(
IWICImagingFactory *iface, IStream *pIStream, const GUID *pguidVendor,
WICDecodeOptions metadataOptions, IWICBitmapDecoder **ppIDecoder)
{
static int fixme=0;
IEnumUnknown *enumdecoders;
IUnknown *unkdecoderinfo;
IWICBitmapDecoderInfo *decoderinfo;
IWICBitmapDecoder *decoder=NULL;
IWICBitmapDecoder *decoder = NULL, *preferred_decoder = NULL;
GUID vendor;
HRESULT res=S_OK;
ULONG num_fetched;
BOOL matches;
@ -134,13 +134,10 @@ static HRESULT WINAPI ImagingFactory_CreateDecoderFromStream(
TRACE("(%p,%p,%s,%u,%p)\n", iface, pIStream, debugstr_guid(pguidVendor),
metadataOptions, ppIDecoder);
if (pguidVendor && !fixme++)
FIXME("ignoring vendor GUID\n");
res = CreateComponentEnumerator(WICDecoder, WICComponentEnumerateDefault, &enumdecoders);
if (FAILED(res)) return res;
while (!decoder)
while (!preferred_decoder)
{
res = IEnumUnknown_Next(enumdecoders, 1, &unkdecoderinfo, &num_fetched);
@ -154,19 +151,36 @@ static HRESULT WINAPI ImagingFactory_CreateDecoderFromStream(
if (SUCCEEDED(res) && matches)
{
res = IWICBitmapDecoderInfo_CreateInstance(decoderinfo, &decoder);
IWICBitmapDecoder *new_decoder;
res = IWICBitmapDecoderInfo_CreateInstance(decoderinfo, &new_decoder);
/* FIXME: should use QueryCapability to choose a decoder */
if (SUCCEEDED(res))
{
res = IWICBitmapDecoder_Initialize(decoder, pIStream, metadataOptions);
res = IWICBitmapDecoder_Initialize(new_decoder, pIStream, metadataOptions);
if (FAILED(res))
if (SUCCEEDED(res))
{
IWICBitmapDecoder_Release(decoder);
decoder = NULL;
if (pguidVendor)
{
res = IWICBitmapDecoderInfo_GetVendorGUID(decoderinfo, &vendor);
if (SUCCEEDED(res) && IsEqualIID(&vendor, pguidVendor))
{
preferred_decoder = new_decoder;
new_decoder = NULL;
}
}
if (new_decoder && !decoder)
{
decoder = new_decoder;
new_decoder = NULL;
}
}
if (new_decoder) IWICBitmapDecoder_Release(new_decoder);
}
}
@ -181,6 +195,13 @@ static HRESULT WINAPI ImagingFactory_CreateDecoderFromStream(
IEnumUnknown_Release(enumdecoders);
if (preferred_decoder)
{
*ppIDecoder = preferred_decoder;
if (decoder) IWICBitmapDecoder_Release(decoder);
return S_OK;
}
if (decoder)
{
*ppIDecoder = decoder;