From 6e8b7c4cef5f0b03cf1e35a76d7919513e54b087 Mon Sep 17 00:00:00 2001
From: Peter Dons Tychsen <donpedro@dhcppc4>
Date: Tue, 1 Jan 2008 21:33:32 +0100
Subject: [PATCH] ddraw: Add missing pitch in callback from EnumDisplayModes().

---
 dlls/ddraw/ddraw.c            |  7 ++++++-
 dlls/ddraw/tests/ddrawmodes.c | 17 +++++++++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index 15e8edcb2c8..e87043ad0d6 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -1289,7 +1289,12 @@ IDirectDrawImpl_EnumDisplayModes(IDirectDraw7 *iface,
 
             PixelFormat_WineD3DtoDD(&callback_sd.u4.ddpfPixelFormat, mode.Format);
 
-            TRACE("Enumerating %dx%d@%d\n", callback_sd.dwWidth, callback_sd.dwHeight, callback_sd.u4.ddpfPixelFormat.u1.dwRGBBitCount);
+            /* Calc pitch and DWORD align like MSDN says */
+            callback_sd.u1.lPitch = (callback_sd.u4.ddpfPixelFormat.u1.dwRGBBitCount / 8) * mode.Width;
+            callback_sd.u1.lPitch = (callback_sd.u1.lPitch + 3) & ~3;
+
+            TRACE("Enumerating %dx%dx%d @%d\n", callback_sd.dwWidth, callback_sd.dwHeight, callback_sd.u4.ddpfPixelFormat.u1.dwRGBBitCount,
+              callback_sd.u2.dwRefreshRate);
 
             if(cb(&callback_sd, Context) == DDENUMRET_CANCEL)
             {
diff --git a/dlls/ddraw/tests/ddrawmodes.c b/dlls/ddraw/tests/ddrawmodes.c
index 4db0856acbe..5af8ba457a1 100644
--- a/dlls/ddraw/tests/ddrawmodes.c
+++ b/dlls/ddraw/tests/ddrawmodes.c
@@ -108,9 +108,22 @@ static void flushdisplaymodes(void)
 
 static HRESULT WINAPI enummodescallback(LPDDSURFACEDESC lpddsd, LPVOID lpContext)
 {
-    trace("Width = %i, Height = %i, Refresh Rate = %i\r\n",
+    trace("Width = %i, Height = %i, Refresh Rate = %i, Pitch = %i, flags =%02X\r\n",
         lpddsd->dwWidth, lpddsd->dwHeight,
-        U2(*lpddsd).dwRefreshRate);
+        U2(*lpddsd).dwRefreshRate, lpddsd->lPitch, lpddsd->dwFlags);
+
+    /* Check that the pitch is valid if applicable */
+    if(lpddsd->dwFlags & DDSD_PITCH)
+    {
+      ok(lpddsd->lPitch != 0, "EnumDisplayModes callback with bad pitch\n");
+    }
+
+    /* Check that frequency is valid if applicable */
+    if(lpddsd->dwFlags & DDSD_REFRESHRATE)
+    {
+      ok(lpddsd->dwRefreshRate != 0, "EnumDisplayModes callback with bad refresh rate\n");
+    }
+
     adddisplaymode(lpddsd);
 
     return DDENUMRET_OK;