[greatlrd] 28251: Implement NtGdiEngAlphaBlend Implement EngAlphaBlend

Author: greatlrd
Date: Thu Aug  9 03:03:46 2007
New Revision: 28251

URL: http://svn.reactos.org/svn/reactos?rev=28251&view=rev
Log:
Implement NtGdiEngAlphaBlend
Implement EngAlphaBlend

Modified:
    trunk/reactos/dll/win32/gdi32/gdi32.def
    trunk/reactos/dll/win32/gdi32/misc/stubs.c
    trunk/reactos/subsystems/win32/win32k/eng/bitblt.c
    trunk/reactos/subsystems/win32/win32k/w32ksvc.db

Modified: trunk/reactos/dll/win32/gdi32/gdi32.def
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/gdi32.def?…
==============================================================================
--- trunk/reactos/dll/win32/gdi32/gdi32.def (original)
+++ trunk/reactos/dll/win32/gdi32/gdi32.def Thu Aug  9 03:03:46 2007
@@ -162,7 +162,7 @@
 EndPage@4
 EndPath@4
 EngAcquireSemaphore@4
-EngAlphaBlend@28
+EngAlphaBlend@28=NtGdiEngAlphaBlend@28;
 EngAssociateSurface@12
 EngBitBlt@44
 EngCheckAbort@4

Modified: trunk/reactos/dll/win32/gdi32/misc/stubs.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/gdi32/misc/stubs…
==============================================================================
--- trunk/reactos/dll/win32/gdi32/misc/stubs.c (original)
+++ trunk/reactos/dll/win32/gdi32/misc/stubs.c Thu Aug  9 03:03:46 2007
@@ -2534,16 +2534,6 @@
 	SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 }
 
-/*
- * @unimplemented
- */
-BOOL STDCALL 
-EngAlphaBlend(SURFOBJ *psoDest,SURFOBJ *psoSrc,CLIPOBJ *pco,XLATEOBJ *pxlo,RECTL
*prclDest,RECTL *prclSrc,BLENDOBJ *pBlendObj)
-{
-	UNIMPLEMENTED;
-	SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
-	return 0;
-}
 
 /*
  * @unimplemented

Modified: trunk/reactos/subsystems/win32/win32k/eng/bitblt.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/en…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/eng/bitblt.c (original)
+++ trunk/reactos/subsystems/win32/win32k/eng/bitblt.c Thu Aug  9 03:03:46 2007
@@ -890,6 +890,37 @@
     BITMAPOBJ_UnlockBitmapBits(DestObj);
 
     return ret;
+}
+
+
+BOOL
+STDCALL
+NtGdiEngAlphaBlend(IN SURFOBJ *Dest,
+                   IN SURFOBJ *Source,
+                   IN CLIPOBJ *ClipRegion,
+                   IN XLATEOBJ *ColorTranslation,
+                   IN PRECTL upDestRect,
+                   IN PRECTL upSourceRect,
+                   IN BLENDOBJ *BlendObj)
+{
+    RECTL DestRect;
+    RECTL SourceRect;
+
+    _SEH_TRY
+    {
+        ProbeForRead(upDestRect, sizeof(RECTL), 1);
+        RtlCopyMemory(&DestRect,upDestRect, sizeof(RECTL));
+        ProbeForRead(upSourceRect, sizeof(RECTL), 1);
+        RtlCopyMemory(&Source, upSourceRect, sizeof(RECTL));
+
+    }
+    _SEH_HANDLE
+    {
+        _SEH_YIELD(return FALSE);
+    }
+    _SEH_END;
+
+    return EngAlphaBlend(Dest, Source, ClipRegion, ColorTranslation, &DestRect,
&SourceRect, BlendObj);
 }
 
 BOOL

Modified: trunk/reactos/subsystems/win32/win32k/w32ksvc.db
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/w3…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/w32ksvc.db (original)
+++ trunk/reactos/subsystems/win32/win32k/w32ksvc.db Thu Aug  9 03:03:46 2007
@@ -626,7 +626,7 @@
 # NtGdiEngStrokeAndFillPath                       10
 # NtGdiEngPaint                                    5
 # NtGdiEngLineTo                                   9
-# NtGdiEngAlphaBlend                               7
+NtGdiEngAlphaBlend                               7
 # NtGdiEngGradientFill                            10
 # NtGdiEngTransparentBlt                           8
 # NtGdiEngTextOut                                 10