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windowscodecs: Implement IWICPixelFormatInfo::GetChannelMask.

This commit is contained in:
Vincent Povirk 2012-06-13 10:11:53 -05:00 committed by Alexandre Julliard
parent 80f6890616
commit 0648e09f3c
1 changed files with 37 additions and 2 deletions
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39
dlls/windowscodecs/info.c
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@ -48,6 +48,7 @@ static const WCHAR vendor_valuename[] = {'V','e','n','d','o','r',0};
static const WCHAR version_valuename[] = {'V','e','r','s','i','o','n',0};
static const WCHAR bitsperpixel_valuename[] = {'B','i','t','L','e','n','g','t','h',0};
static const WCHAR channelcount_valuename[] = {'C','h','a','n','n','e','l','C','o','u','n','t',0};
static const WCHAR channelmasks_keyname[] = {'C','h','a','n','n','e','l','M','a','s','k','s',0};
static HRESULT ComponentInfo_GetStringValue(HKEY classkey, LPCWSTR value,
UINT buffer_size, WCHAR *buffer, UINT *actual_size)
@ -1274,8 +1275,42 @@ static HRESULT WINAPI PixelFormatInfo_GetChannelCount(IWICPixelFormatInfo2 *ifac
static HRESULT WINAPI PixelFormatInfo_GetChannelMask(IWICPixelFormatInfo2 *iface,
UINT uiChannelIndex, UINT cbMaskBuffer, BYTE *pbMaskBuffer, UINT *pcbActual)
{
FIXME("(%p,%u,%u,%p,%p): stub\n", iface, uiChannelIndex, cbMaskBuffer, pbMaskBuffer, pcbActual);
return E_NOTIMPL;
static const WCHAR uintformatW[] = {'%','u',0};
PixelFormatInfo *This = impl_from_IWICPixelFormatInfo2(iface);
UINT channel_count;
HRESULT hr;
LONG ret;
WCHAR valuename[11];
DWORD cbData;
TRACE("(%p,%u,%u,%p,%p)\n", iface, uiChannelIndex, cbMaskBuffer, pbMaskBuffer, pcbActual);
if (!pcbActual)
return E_INVALIDARG;
hr = PixelFormatInfo_GetChannelCount(iface, &channel_count);
if (SUCCEEDED(hr) && uiChannelIndex >= channel_count)
hr = E_INVALIDARG;
if (SUCCEEDED(hr))
{
snprintfW(valuename, 11, uintformatW, uiChannelIndex);
cbData = cbMaskBuffer;
ret = RegGetValueW(This->classkey, channelmasks_keyname, valuename, RRF_RT_REG_BINARY, NULL, pbMaskBuffer, &cbData);
if (ret == ERROR_SUCCESS || ret == ERROR_MORE_DATA)
*pcbActual = cbData;
if (ret == ERROR_MORE_DATA)
hr = E_INVALIDARG;
else
hr = HRESULT_FROM_WIN32(ret);
}
return hr;
}
static HRESULT WINAPI PixelFormatInfo_SupportsTransparency(IWICPixelFormatInfo2 *iface,