Dmitry Timoshkov : windowscodecs: Add a test to show that QueryCapability initializes the decoder.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 37892c2f282794377a6b04386a42d42957908464
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=37892c2f282794377a6b04386a...

Author: Dmitry Timoshkov <dmitry(a)baikal.ru>
Date:   Fri Nov 23 15:40:37 2012 +0800

windowscodecs: Add a test to show that QueryCapability initializes the decoder.

---

 dlls/windowscodecs/tests/tiffformat.c |   12 ++++++++++++
 dlls/windowscodecs/tiffformat.c       |    2 +-
 2 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/dlls/windowscodecs/tests/tiffformat.c b/dlls/windowscodecs/tests/tiffformat.c
index d8cb10a..f32f6a5 100644
--- a/dlls/windowscodecs/tests/tiffformat.c
+++ b/dlls/windowscodecs/tests/tiffformat.c
@@ -185,6 +185,7 @@ static void test_QueryCapability(void)
     HRESULT hr;
     IStream *stream;
     IWICBitmapDecoder *decoder;
+    IWICBitmapFrameDecode *frame;
     static const DWORD exp_caps = WICBitmapDecoderCapabilityCanDecodeAllImages |
                                   WICBitmapDecoderCapabilityCanDecodeSomeImages |
                                   WICBitmapDecoderCapabilityCanEnumerateMetadata;
@@ -206,6 +207,9 @@ static void test_QueryCapability(void)
     ok(hr == S_OK || broken(hr == E_POINTER) /* XP */, "GetFrameCount error %#x\n", hr);
     ok(frame_count == 0, "expected 0, got %u\n", frame_count);
 
+    hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
+    ok(hr == WINCODEC_ERR_FRAMEMISSING || broken(hr == E_POINTER) /* XP */, "expected WINCODEC_ERR_FRAMEMISSING, got %#x\n", hr);
+
     pos.QuadPart = 4;
     hr = IStream_Seek(stream, pos, SEEK_SET, NULL);
     ok(hr == S_OK, "IStream_Seek error %#x\n", hr);
@@ -221,6 +225,10 @@ static void test_QueryCapability(void)
     ok(hr == S_OK, "GetFrameCount error %#x\n", hr);
     ok(frame_count == 1, "expected 1, got %u\n", frame_count);
 
+    hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
+    ok(hr == S_OK, "GetFrame error %#x\n", hr);
+    IWICBitmapFrameDecode_Release(frame);
+
     pos.QuadPart = 0;
     hr = IStream_Seek(stream, pos, SEEK_CUR, &cur_pos);
     ok(hr == S_OK, "IStream_Seek error %#x\n", hr);
@@ -251,6 +259,10 @@ todo_wine
     ok(hr == S_OK, "GetFrameCount error %#x\n", hr);
     ok(frame_count == 1, "expected 1, got %u\n", frame_count);
 
+    hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
+    ok(hr == S_OK, "GetFrame error %#x\n", hr);
+    IWICBitmapFrameDecode_Release(frame);
+
     hr = IWICBitmapDecoder_Initialize(decoder, stream, WICDecodeMetadataCacheOnDemand);
     ok(hr == WINCODEC_ERR_WRONGSTATE, "expected WINCODEC_ERR_WRONGSTATE, got %#x\n", hr);
 
diff --git a/dlls/windowscodecs/tiffformat.c b/dlls/windowscodecs/tiffformat.c
index bacc9c5..6c29bab 100644
--- a/dlls/windowscodecs/tiffformat.c
+++ b/dlls/windowscodecs/tiffformat.c
@@ -702,7 +702,7 @@ static HRESULT WINAPI TiffDecoder_GetFrame(IWICBitmapDecoder *iface,
     TRACE("(%p,%u,%p)\n", iface, index, ppIBitmapFrame);
 
     if (!This->tiff)
-        return WINCODEC_ERR_WRONGSTATE;
+        return WINCODEC_ERR_FRAMEMISSING;
 
     EnterCriticalSection(&This->lock);
     res = pTIFFSetDirectory(This->tiff, index);