[2/2] windowscodecs: Add a comment to PNG decoder that Windows ignores CRC of the chunks.

Dmitry Timoshkov dmitry at baikal.ru
Wed Mar 6 01:29:20 CST 2013


While creating a PNG image with PLTE+tRNS chunks I've written a helper to
check PNG image structure including CRC of chunks, but that proved to be
not needed, because Windows loaded manually created PNG images with wrong
chunk CRCs just fine.
---
 dlls/windowscodecs/pngformat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/windowscodecs/pngformat.c b/dlls/windowscodecs/pngformat.c
index e4236e2..fb8bf51 100644
--- a/dlls/windowscodecs/pngformat.c
+++ b/dlls/windowscodecs/pngformat.c
@@ -76,7 +76,7 @@ static HRESULT read_png_chunk(IStream *stream, BYTE *type, BYTE **data, ULONG *d
             return hr;
         }
 
-        /* FIXME: Verify the CRC? */
+        /* Windows ignores CRC of the chunk */
     }
 
     return S_OK;
-- 
1.8.1.3




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