[08/10] windowscodecs: Implement QueryCapability of the PNG decoder.
Dmitry Timoshkov
dmitry at baikal.ru
Thu Nov 22 21:50:05 CST 2012
---
dlls/windowscodecs/pngformat.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/dlls/windowscodecs/pngformat.c b/dlls/windowscodecs/pngformat.c
index c3e03c1..db16cbc 100644
--- a/dlls/windowscodecs/pngformat.c
+++ b/dlls/windowscodecs/pngformat.c
@@ -351,11 +351,22 @@ static ULONG WINAPI PngDecoder_Release(IWICBitmapDecoder *iface)
return ref;
}
-static HRESULT WINAPI PngDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *pIStream,
- DWORD *pdwCapability)
+static HRESULT WINAPI PngDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *stream,
+ DWORD *capability)
{
- FIXME("(%p,%p,%p): stub\n", iface, pIStream, pdwCapability);
- return E_NOTIMPL;
+ HRESULT hr;
+
+ TRACE("(%p,%p,%p)\n", iface, stream, capability);
+
+ if (!stream || !capability) return E_INVALIDARG;
+
+ hr = IWICBitmapDecoder_Initialize(iface, stream, WICDecodeMetadataCacheOnDemand);
+ if (hr != S_OK) return hr;
+
+ *capability = WICBitmapDecoderCapabilityCanDecodeAllImages |
+ WICBitmapDecoderCapabilityCanDecodeSomeImages;
+ /* FIXME: WICBitmapDecoderCapabilityCanEnumerateMetadata */
+ return S_OK;
}
static void user_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
--
1.7.12.4
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