Alexandre Julliard : user32: Fallback to normal icon drawing if AlphaBlend fails.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f5f3426c878238545393ce4e95be2c75217f55ea
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=f5f3426c878238545393ce4e95...

Author: Alexandre Julliard 
Date:   Sat May 29 10:47:28 2010 +0200

user32: Fallback to normal icon drawing if AlphaBlend fails.

---

dlls/user32/cursoricon.c |   28 +++++++++++++++-------------
 1 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/dlls/user32/cursoricon.c b/dlls/user32/cursoricon.c
index e4973e3..b54d9fd 100644
--- a/dlls/user32/cursoricon.c
+++ b/dlls/user32/cursoricon.c
@@ -2030,11 +2030,11 @@ BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
         r.right = cxWidth;
         r.bottom = cxWidth;

-        if (!(hdc_dest = CreateCompatibleDC(hdc))) goto done;
+        if (!(hdc_dest = CreateCompatibleDC(hdc))) goto failed;
         if (!(hB_off = CreateCompatibleBitmap(hdc, cxWidth, cyWidth)))
         {
             DeleteDC( hdc_dest );
-            goto done;
+            goto failed;
         }
         SelectObject(hdc_dest, hB_off);
         FillRect(hdc_dest, &r, hbr);
@@ -2052,7 +2052,16 @@ BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
     oldFg = SetTextColor( hdc, RGB(0,0,0) );
     oldBg = SetBkColor( hdc, RGB(255,255,255) );

-    if ((flags & DI_MASK) && (!ptr->alpha || !(flags & DI_IMAGE)))
+    if (ptr->alpha && (flags & DI_IMAGE))
+    {
+        BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
+
+        SelectObject( hMemDC, ptr->alpha );
+        if (GdiAlphaBlend( hdc_dest, x, y, cxWidth, cyWidth, hMemDC,
+                           0, 0, ptr->width, ptr->height, pixelblend )) goto done;
+    }
+
+    if (flags & DI_MASK)
     {
         SelectObject( hMemDC, ptr->mask );
         StretchBlt( hdc_dest, x, y, cxWidth, cyWidth,
@@ -2061,15 +2070,7 @@ BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,

if (flags & DI_IMAGE)
     {
-        if (ptr->alpha)
-        {
-            BLENDFUNCTION pixelblend = { AC_SRC_OVER, 0, 255, AC_SRC_ALPHA };
-
-            SelectObject( hMemDC, ptr->alpha );
-            GdiAlphaBlend( hdc_dest, x, y, cxWidth, cyWidth, hMemDC,
-                           0, 0, ptr->width, ptr->height, pixelblend );
-        }
-        else if (ptr->color)
+        if (ptr->color)
         {
             DWORD rop = (flags & DI_MASK) ? SRCINVERT : SRCCOPY;
             SelectObject( hMemDC, ptr->color );
@@ -2085,6 +2086,7 @@ BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
         }
     }

+done:
     if (DoOffscreen) BitBlt( hdc, x0, y0, cxWidth, cyWidth, hdc_dest, 0, 0, SRCCOPY );

SetTextColor( hdc, oldFg );
@@ -2093,7 +2095,7 @@ BOOL WINAPI DrawIconEx( HDC hdc, INT x0, INT y0, HICON hIcon,
     result = TRUE;
     if (hdc_dest != hdc) DeleteDC( hdc_dest );
     if (hB_off) DeleteObject(hB_off);
-done:
+failed:
     DeleteDC( hMemDC );
     release_icon_ptr( hIcon, ptr );
     return result;