CVS: winex/dlls/quartz vidren.c, 1.9, 1.10 vidren.h, 1.3, 1.4

Subject: winex/dlls/quartz vidren.c,1.9,1.10 vidren.h,1.3,1.4Update of /var/lib/cvsd/cvsroot/winex/dlls/quartz
In directory agravaine:/tmp/cvs-serv26035/dlls/quartz

Modified Files:
	vidren.c vidren.h 
Log Message:
The DirectDraw renderer now grabs a backbuffer, blits to it, and flips,
rather than blitting straight to the frontbuffer, to minimize artifacts.


Index: vidren.c
===================================================================
RCS file: /var/lib/cvsd/cvsroot/winex/dlls/quartz/vidren.c,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -d -r1.9 -r1.10
--- vidren.c	30 Mar 2007 21:36:48 -0000	1.9
+++ vidren.c	30 Mar 2007 21:42:38 -0000	1.10
@@ -134,14 +134,17 @@
 {
 	HRESULT hr;
 
-	if (This->m_pDDSFront)
-		IDirectDrawSurface_Release(This->m_pDDSFront);
-
 	if (This->m_pDDSSource)
 		IDirectDrawSurface_Release(This->m_pDDSSource);
+	This->m_pDDSSource	= NULL;
+
+	if (This->m_pDDSBack)
+		IDirectDrawSurface_Release(This->m_pDDSBack);
+	This->m_pDDSBack	= NULL;
 
+	if (This->m_pDDSFront)
+		IDirectDrawSurface_Release(This->m_pDDSFront);
 	This->m_pDDSFront	= NULL;
-	This->m_pDDSSource	= NULL;
 
 	if (This->m_lpddraw && (hr = IDirectDraw_SetCooperativeLevel(This->m_lpddraw, 0, DDSCL_NORMAL)))
 	{
@@ -157,6 +160,7 @@
 {
 	HRESULT		hr;
 	DDSURFACEDESC 	ddsd;
+	DDSCAPS		caps;
 
 	if (This->m_lpddraw == NULL)
 		return(DDERR_UNSUPPORTED);
@@ -180,13 +184,21 @@
 	/*  fields will contain valid values */
 
 	ddsd.ddsCaps.dwCaps 			= DDSCAPS_PRIMARYSURFACE;
-	ddsd.dwFlags 				= DDSD_CAPS;
+	ddsd.dwFlags 				= DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
+	ddsd.dwBackBufferCount			= 1;
 
 	hr = IDirectDraw_CreateSurface(This->m_lpddraw, &ddsd, &This->m_pDDSFront, NULL);
 	if (hr != S_OK)
 		return hr;
 
-	TRACE("Created %p\n", This->m_pDDSFront);
+	TRACE("Created primary surface: %p\n", This->m_pDDSFront);
+
+	caps.dwCaps = DDSCAPS_BACKBUFFER;
+	hr = IDirectDrawSurface_GetAttachedSurface(This->m_pDDSFront, &caps, &This->m_pDDSBack);
+	if (hr != S_OK)
+		return hr;
+
+	TRACE("Backbuffer: %p\n", This->m_pDDSBack);
 
 	/* -- Create the source surface */
 	ddsd.ddsCaps.dwCaps			= DDSCAPS_OFFSCREENPLAIN;
@@ -222,7 +234,8 @@
 	SetRect(&rcSrc, 0, 0, movW, movH);		/* movie size */
 	SetRect(&rcDst, left, top, right, bottom);	/* screen size */
 
-	hr = IDirectDrawSurface_Blt(This->m_pDDSFront, &rcDst, This->m_pDDSSource, &rcSrc, DDBLT_WAIT, NULL);
+	hr = IDirectDrawSurface_Blt(This->m_pDDSBack, &rcDst, This->m_pDDSSource, &rcSrc, DDBLT_WAIT, NULL);
+	hr = IDirectDrawSurface_Flip(This->m_pDDSFront, NULL, DDFLIP_WAIT);
 
 	TRACE("ok\n");
 }
@@ -1239,6 +1252,7 @@
 	This->m_numFrames = 0;
 	This->m_skipFrames = 0;
 	This->m_pDDSFront = NULL;
+	This->m_pDDSBack = NULL;
 	This->m_pDDSSource = NULL;
 	This->m_lpddraw = NULL;
 

Index: vidren.h
===================================================================
RCS file: /var/lib/cvsd/cvsroot/winex/dlls/quartz/vidren.h,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- vidren.h	30 Mar 2007 21:36:49 -0000	1.3
+++ vidren.h	30 Mar 2007 21:42:38 -0000	1.4
@@ -71,6 +71,7 @@
 
 	IDirectDraw 		*m_lpddraw;
 	IDirectDrawSurface 	*m_pDDSFront;
+	IDirectDrawSurface 	*m_pDDSBack;
 	IDirectDrawSurface 	*m_pDDSSource;
 	int			m_UseDirectDraw;
 	int			m_Width;