Hans Leidekker : windowscodecs: Implement IWICBitmapFrameDecode:: GetColorContexts for TIFF images.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d8c71dd5ed80111c401382dc9dd6c5a218148ecb
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=d8c71dd5ed80111c401382dc9dd6c5a218148ecb

Author: Hans Leidekker <hans at codeweavers.com>
Date:   Mon Feb 11 14:30:35 2013 +0100

windowscodecs: Implement IWICBitmapFrameDecode::GetColorContexts for TIFF images.

---

 dlls/windowscodecs/tiffformat.c |   30 ++++++++++++++++++++++++++++--
 1 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/dlls/windowscodecs/tiffformat.c b/dlls/windowscodecs/tiffformat.c
index 8cebb0c..0fcb81a 100644
--- a/dlls/windowscodecs/tiffformat.c
+++ b/dlls/windowscodecs/tiffformat.c
@@ -1105,8 +1105,34 @@ static HRESULT WINAPI TiffFrameDecode_GetMetadataQueryReader(IWICBitmapFrameDeco
 static HRESULT WINAPI TiffFrameDecode_GetColorContexts(IWICBitmapFrameDecode *iface,
     UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
 {
-    FIXME("(%p,%u,%p,%p): stub\n", iface, cCount, ppIColorContexts, pcActualCount);
-    return WINCODEC_ERR_UNSUPPORTEDOPERATION;
+    TiffFrameDecode *This = impl_from_IWICBitmapFrameDecode(iface);
+    const BYTE *profile;
+    UINT len;
+    HRESULT hr;
+
+    TRACE("(%p,%u,%p,%p)\n", iface, cCount, ppIColorContexts, pcActualCount);
+
+    EnterCriticalSection(&This->parent->lock);
+
+    if (pTIFFGetField(This->parent->tiff, TIFFTAG_ICCPROFILE, &len, &profile))
+    {
+        if (cCount && ppIColorContexts)
+        {
+            hr = IWICColorContext_InitializeFromMemory(*ppIColorContexts, profile, len);
+            if (FAILED(hr))
+            {
+                LeaveCriticalSection(&This->parent->lock);
+                return hr;
+            }
+        }
+        *pcActualCount = 1;
+    }
+    else
+        *pcActualCount = 0;
+
+    LeaveCriticalSection(&This->parent->lock);
+
+    return S_OK;
 }
 
 static HRESULT WINAPI TiffFrameDecode_GetThumbnail(IWICBitmapFrameDecode *iface,