=?UTF-8?Q?Stefan=20D=C3=B6singer=20?=: ddraw/tests: Add a test for YV12 partial block locks and lock offsets.
Alexandre Julliard
julliard at winehq.org
Mon Nov 14 13:33:58 CST 2011
Module: wine
Branch: master
Commit: a9c72d8772b322eec5513c0d399148f7de5d8732
URL: http://source.winehq.org/git/wine.git/?a=commit;h=a9c72d8772b322eec5513c0d399148f7de5d8732
Author: Stefan Dösinger <stefan at codeweavers.com>
Date: Thu Oct 13 21:44:27 2011 +0200
ddraw/tests: Add a test for YV12 partial block locks and lock offsets.
---
dlls/ddraw/tests/overlay.c | 19 ++++++++++++++++++-
1 files changed, 18 insertions(+), 1 deletions(-)
diff --git a/dlls/ddraw/tests/overlay.c b/dlls/ddraw/tests/overlay.c
index 4f1ac92..6288be1 100644
--- a/dlls/ddraw/tests/overlay.c
+++ b/dlls/ddraw/tests/overlay.c
@@ -1,7 +1,7 @@
/*
* Unit tests for DirectDraw overlay functions
*
- * Copyright (C) 2008 Stefan Dösinger for CodeWeavers
+ * Copyright (C) 2008,2011 Stefan Dösinger for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ -195,6 +195,9 @@ static void yv12_test(void)
HRESULT hr;
DDSURFACEDESC2 desc;
IDirectDrawSurface7 *surface;
+ char *base;
+ RECT rect = {13, 17, 14, 18};
+ unsigned int offset;
surface = create_overlay(256, 256, MAKEFOURCC('Y','V','1','2'));
if(!surface) {
@@ -217,6 +220,20 @@ static void yv12_test(void)
/* The overlay pitch seems to have 256 byte alignment */
ok((U1(desc).lPitch & 0xff) == 0, "Expected 256 byte aligned pitch, got %u\n", U1(desc).lPitch);
+ base = desc.lpSurface;
+
+ hr = IDirectDrawSurface7_Unlock(surface, NULL);
+ ok(hr == DD_OK, "IDirectDrawSurface7_Unlock returned 0x%08x, expected DD_OK\n", hr);
+
+ /* YV12 uses 2x2 blocks with 6 bytes per block(4*Y, 1*U, 1*V). Unlike other block-based formats like DXT
+ * the entire Y channel is stored in one big chunk of memory, followed by the chroma channels. So
+ * partial locks do not really make sense. Show that they are allowed nevertheless and the offset points
+ * into the luminance data */
+ hr = IDirectDrawSurface7_Lock(surface, &rect, &desc, 0, NULL);
+ ok(hr == DD_OK, "Partial lock of a YV12 surface returned 0x%08x, expected DD_OK\n", hr);
+ offset = ((const char *) desc.lpSurface - base);
+ ok(offset == rect.top * U1(desc).lPitch + rect.left, "Expected %u byte offset from partial lock, got %u\n",
+ rect.top * U1(desc).lPitch + rect.left, offset);
hr = IDirectDrawSurface7_Unlock(surface, NULL);
ok(hr == DD_OK, "IDirectDrawSurface7_Unlock returned 0x%08x, expected DD_OK\n", hr);
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