misc nx-X11/{programs/Xserver/composite,include/extensions}: update to Composite 0.4 - with changes where neccessary and rough edges.

1 files changed, 226 insertions, 69 deletions

diff --git a/nx-X11/programs/Xserver/composite/compalloc.c b/nx-X11/programs/Xserver/composite/compalloc.c
index f66a90989..9279a5248 100644
--- a/nx-X11/programs/Xserver/composite/compalloc.c
+++ b/nx-X11/programs/Xserver/composite/compalloc.c
@@ -28,36 +28,110 @@
 
 #include "compint.h"
 
-void
-compReportDamage (DamagePtr pDamage, RegionPtr pRegion, void *closure)
+static void
+compScreenUpdate(ScreenPtr pScreen)
 {
-    WindowPtr	    pWin = (WindowPtr) closure;
-    ScreenPtr	    pScreen = pWin->drawable.pScreen;
-    CompScreenPtr   cs = GetCompScreen (pScreen);
-    CompWindowPtr   cw = GetCompWindow (pWin);
+    compCheckTree(pScreen);
+    compPaintChildrenToWindow(pScreen, WindowTable[pScreen->myNum]);
+}
+
+static void
+compBlockHandler(int i, void *blockData, void *pTimeout, void *pReadmask)
+{
+    ScreenPtr pScreen = screenInfo.screens[i];
+    CompScreenPtr cs = GetCompScreen(pScreen);
 
+    pScreen->BlockHandler = cs->BlockHandler;
+    compScreenUpdate(pScreen);
+    (*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
+
+    /* Next damage will restore the block handler */
+    cs->BlockHandler = NULL;
+}
+
+static void
+compReportDamage(DamagePtr pDamage, RegionPtr pRegion, void *closure)
+{
+    WindowPtr pWin = (WindowPtr) closure;
+    ScreenPtr pScreen = pWin->drawable.pScreen;
+    CompScreenPtr cs = GetCompScreen(pScreen);
+    CompWindowPtr cw = GetCompWindow(pWin);
+
+    if (!cs->BlockHandler) {
+        cs->BlockHandler = pScreen->BlockHandler;
+        pScreen->BlockHandler = compBlockHandler;
+    }
     cs->damaged = TRUE;
     cw->damaged = TRUE;
+
+    /* Mark the ancestors */
+    /* We can't do this, Dave. No damagedDescendants support. */
+    /*
+    pWin = pWin->parent;
+    while (pWin) {
+        if (pWin->damagedDescendants)
+            break;
+        pWin->damagedDescendants = TRUE;
+        pWin = pWin->parent;
+    }
+    */
 }
 
 static void
-compDestroyDamage (DamagePtr pDamage, void *closure)
+compDestroyDamage(DamagePtr pDamage, void *closure)
 {
-    WindowPtr	    pWin = (WindowPtr) closure;
-    CompWindowPtr   cw = GetCompWindow (pWin);
+    WindowPtr pWin = (WindowPtr) closure;
+    CompWindowPtr cw = GetCompWindow(pWin);
 
     cw->damage = 0;
 }
 
+static Bool
+compMarkWindows(WindowPtr pWin, WindowPtr *ppLayerWin)
+{
+    ScreenPtr pScreen = pWin->drawable.pScreen;
+    WindowPtr pLayerWin = pWin;
+
+    if (!pWin->viewable)
+        return FALSE;
+
+    (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin);
+    (*pScreen->MarkWindow) (pLayerWin->parent);
+
+    *ppLayerWin = pLayerWin;
+
+    return TRUE;
+}
+
+static void
+compHandleMarkedWindows(WindowPtr pWin, WindowPtr pLayerWin)
+{
+    ScreenPtr pScreen = pWin->drawable.pScreen;
+
+    (*pScreen->ValidateTree) (pLayerWin->parent, pLayerWin, VTOther);
+    (*pScreen->HandleExposures) (pLayerWin->parent);
+    if (pScreen->PostValidateTree)
+        (*pScreen->PostValidateTree) (pLayerWin->parent, pLayerWin, VTOther);
+}
+
 /*
  * Redirect one window for one client
  */
 int
-compRedirectWindow (ClientPtr pClient, WindowPtr pWin, int update)
+compRedirectWindow(ClientPtr pClient, WindowPtr pWin, int update)
 {
-    CompWindowPtr	cw = GetCompWindow (pWin);
-    CompClientWindowPtr	ccw;
-    Bool		wasMapped = pWin->mapped;
+    CompWindowPtr cw = GetCompWindow(pWin);
+    CompClientWindowPtr ccw;
+    CompScreenPtr cs = GetCompScreen(pWin->drawable.pScreen);
+    WindowPtr pLayerWin;
+    Bool anyMarked = FALSE;
+
+    if (pWin == cs->pOverlayWin) {
+        return Success;
+    }
+
+    if (!pWin->parent)
+        return BadMatch;
 
     /*
      * Only one Manual update is allowed
@@ -100,8 +174,8 @@ compRedirectWindow (ClientPtr pClient, WindowPtr pWin, int update)
 	    xfree (cw);
 	    return BadAlloc;
 	}
-	if (wasMapped)
-	    UnmapWindow (pWin, FALSE);
+
+        anyMarked = compMarkWindows(pWin, &pLayerWin);
 
 	RegionNull(&cw->borderClip);
 	cw->update = CompositeRedirectAutomatic;
@@ -110,7 +184,8 @@ compRedirectWindow (ClientPtr pClient, WindowPtr pWin, int update)
 	cw->oldy = COMP_ORIGIN_INVALID;
 	cw->damageRegistered = FALSE;
 	cw->damaged = FALSE;
-	pWin->devPrivates[CompWindowPrivateIndex].ptr = cw;
+        cw->pOldPixmap = NullPixmap;
+        FAKE_DIX_SET_WINDOW_PRIVATE(pWin, cw);
     }
     ccw->next = cw->clients;
     cw->clients = ccw;
@@ -118,30 +193,59 @@ compRedirectWindow (ClientPtr pClient, WindowPtr pWin, int update)
 	return BadAlloc;
     if (ccw->update == CompositeRedirectManual)
     {
-	if (cw->damageRegistered)
-	{
+        if (!anyMarked)
+            anyMarked = compMarkWindows(pWin, &pLayerWin);
+
+        if (cw->damageRegistered) {
 	    DamageUnregister (&pWin->drawable, cw->damage);
 	    cw->damageRegistered = FALSE;
 	}
 	cw->update = CompositeRedirectManual;
     }
+    else if (cw->update == CompositeRedirectAutomatic && !cw->damageRegistered) {
+        if (!anyMarked)
+            anyMarked = compMarkWindows(pWin, &pLayerWin);
+    }
 
     if (!compCheckRedirect (pWin))
     {
 	FreeResource (ccw->id, RT_NONE);
 	return BadAlloc;
     }
-    if (wasMapped && !pWin->mapped)
-    {
-	Bool	overrideRedirect = pWin->overrideRedirect;
-	pWin->overrideRedirect = TRUE;
-	MapWindow (pWin, pClient);
-	pWin->overrideRedirect = overrideRedirect;
-    }
+
+    if (anyMarked)
+        compHandleMarkedWindows(pWin, pLayerWin);
     
     return Success;
 }
 
+void
+compRestoreWindow(WindowPtr pWin, PixmapPtr pPixmap)
+{
+    ScreenPtr pScreen = pWin->drawable.pScreen;
+    WindowPtr pParent = pWin->parent;
+
+    if (pParent->drawable.depth == pWin->drawable.depth) {
+        GCPtr pGC = GetScratchGC(pWin->drawable.depth, pScreen);
+        int bw = (int) pWin->borderWidth;
+        int x = bw;
+        int y = bw;
+        int w = pWin->drawable.width;
+        int h = pWin->drawable.height;
+
+        if (pGC) {
+            ChangeGCVal val;
+
+            val.val = IncludeInferiors;
+            dixChangeGC(NullClient, pGC, GCSubwindowMode, NULL, &val);
+            ValidateGC(&pWin->drawable, pGC);
+            (*pGC->ops->CopyArea) (&pPixmap->drawable,
+                                   &pWin->drawable, pGC, x, y, w, h, 0, 0);
+            FreeScratchGC(pGC);
+        }
+    }
+}
+
 /*
  * Free one of the per-client per-window resources, clearing
  * redirect and the per-window pointer as appropriate
@@ -149,9 +253,12 @@ compRedirectWindow (ClientPtr pClient, WindowPtr pWin, int update)
 void
 compFreeClientWindow (WindowPtr pWin, XID id)
 {
+    ScreenPtr pScreen = pWin->drawable.pScreen;
     CompWindowPtr	cw = GetCompWindow (pWin);
     CompClientWindowPtr	ccw, *prev;
-    Bool		wasMapped = pWin->mapped;
+    Bool anyMarked = FALSE;
+    WindowPtr pLayerWin;
+    PixmapPtr pPixmap = NULL;
 
     if (!cw)
 	return;
@@ -168,33 +275,38 @@ compFreeClientWindow (WindowPtr pWin, XID id)
     }
     if (!cw->clients)
     {
-	if (wasMapped)
-	    UnmapWindow (pWin, FALSE);
-    
-	if (pWin->redirectDraw)
-	    compFreePixmap (pWin);
+        anyMarked = compMarkWindows(pWin, &pLayerWin);
+
+	if (pWin->redirectDraw != RedirectDrawNone) {
+            pPixmap = (*pScreen->GetWindowPixmap) (pWin);
+            compSetParentPixmap(pWin);
+	}
 
 	if (cw->damage)
 	    DamageDestroy (cw->damage);
 	
 	RegionUninit(&cw->borderClip);
     
-	pWin->devPrivates[CompWindowPrivateIndex].ptr = 0;
+        FAKE_DIX_SET_WINDOW_PRIVATE(pWin, NULL);
 	xfree (cw);
     }
     else if (cw->update == CompositeRedirectAutomatic &&
-	     !cw->damageRegistered && pWin->redirectDraw)
+	     !cw->damageRegistered && pWin->redirectDraw != RedirectDrawNone)
     {
+        anyMarked = compMarkWindows(pWin, &pLayerWin);
+
 	DamageRegister (&pWin->drawable, cw->damage);
 	cw->damageRegistered = TRUE;
+        pWin->redirectDraw = RedirectDrawAutomatic;
 	DamageDamageRegion (&pWin->drawable, &pWin->borderSize);
     }
-    if (wasMapped && !pWin->mapped)
-    {
-	Bool	overrideRedirect = pWin->overrideRedirect;
-	pWin->overrideRedirect = TRUE;
-	MapWindow (pWin, clients[CLIENT_ID(id)]);
-	pWin->overrideRedirect = overrideRedirect;
+
+    if (anyMarked)
+        compHandleMarkedWindows(pWin, pLayerWin);
+
+    if (pPixmap) {
+        compRestoreWindow(pWin, pPixmap);
+        (*pScreen->DestroyPixmap) (pPixmap);
     }
 }
 
@@ -261,7 +373,7 @@ compRedirectSubwindows (ClientPtr pClient, WindowPtr pWin, int update)
 	}
 	csw->update = CompositeRedirectAutomatic;
 	csw->clients = 0;
-	pWin->devPrivates[CompSubwindowsPrivateIndex].ptr = csw;
+        FAKE_DIX_SET_SUBWINDOWS_PRIVATE(pWin, csw);
     }
     /*
      * Redirect all existing windows
@@ -276,7 +388,7 @@ compRedirectSubwindows (ClientPtr pClient, WindowPtr pWin, int update)
 	    if (!csw->clients)
 	    {
 		xfree (csw);
-		pWin->devPrivates[CompSubwindowsPrivateIndex].ptr = 0;
+                FAKE_DIX_SET_SUBWINDOWS_PRIVATE(pWin, NULL);
 	    }
 	    xfree (ccw);
 	    return ret;
@@ -349,7 +461,7 @@ compFreeClientSubwindows (WindowPtr pWin, XID id)
      */
     if (!csw->clients)
     {
-	pWin->devPrivates[CompSubwindowsPrivateIndex].ptr = 0;
+        FAKE_DIX_SET_SUBWINDOWS_PRIVATE(pWin, NULL);
 	xfree (csw);
     }
 }
@@ -425,9 +537,10 @@ compNewPixmap (WindowPtr pWin, int x, int y, int w, int h)
     ScreenPtr	    pScreen = pWin->drawable.pScreen;
     WindowPtr	    pParent = pWin->parent;
     PixmapPtr	    pPixmap;
-    GCPtr	    pGC;
 
-    pPixmap = (*pScreen->CreatePixmap) (pScreen, w, h, pWin->drawable.depth);
+    /* usage_hint unsupported by our old server infrastructure. */
+    pPixmap = (*pScreen->CreatePixmap) (pScreen, w, h, pWin->drawable.depth /*,
+                                        CREATE_PIXMAP_USAGE_BACKING_PIXMAP */);
 
     if (!pPixmap)
 	return 0;
@@ -435,25 +548,60 @@ compNewPixmap (WindowPtr pWin, int x, int y, int w, int h)
     pPixmap->screen_x = x;
     pPixmap->screen_y = y;
     
-    pGC = GetScratchGC (pWin->drawable.depth, pScreen);
+    if (pParent->drawable.depth == pWin->drawable.depth) {
+    	GCPtr pGC = GetScratchGC (pWin->drawable.depth, pScreen);
     
-    /*
-     * Copy bits from the parent into the new pixmap so that it will
-     * have "reasonable" contents in case for background None areas.
-     */
-    if (pGC)
-    {
-	XID val = IncludeInferiors;
-	
-	ValidateGC(&pPixmap->drawable, pGC);
-	dixChangeGC (serverClient, pGC, GCSubwindowMode, &val, NULL);
-	(*pGC->ops->CopyArea) (&pParent->drawable,
-			       &pPixmap->drawable,
-			       pGC,
-			       x - pParent->drawable.x,
-			       y - pParent->drawable.y,
-			       w, h, 0, 0);
-	FreeScratchGC (pGC);
+        /*
+         * Copy bits from the parent into the new pixmap so that it will
+         * have "reasonable" contents in case for background None areas.
+         */
+        if (pGC)
+        {
+	    ChangeGCVal val;
+
+	    val.val = IncludeInferiors;
+            dixChangeGC(NullClient, pGC, GCSubwindowMode, NULL, &val);
+	    ValidateGC(&pPixmap->drawable, pGC);
+	    (*pGC->ops->CopyArea) (&pParent->drawable,
+	 		           &pPixmap->drawable,
+			           pGC,
+			           x - pParent->drawable.x,
+			           y - pParent->drawable.y,
+			           w, h, 0, 0);
+	    FreeScratchGC (pGC);
+        }
+    }
+    else {
+	PictFormatPtr	pSrcFormat = compWindowFormat (pParent);
+	PictFormatPtr	pDstFormat = compWindowFormat (pWin);
+        XID inferiors = IncludeInferiors;
+        int error;
+
+        PicturePtr pSrcPicture = CreatePicture(None,
+                                               &pParent->drawable,
+                                               pSrcFormat,
+                                               CPSubwindowMode,
+                                               &inferiors,
+                                               serverClient, &error);
+
+        PicturePtr pDstPicture = CreatePicture(None,
+                                               &pPixmap->drawable,
+                                               pDstFormat,
+                                               0, 0,
+                                               serverClient, &error);
+
+        if (pSrcPicture && pDstPicture) {
+            CompositePicture(PictOpSrc,
+                             pSrcPicture,
+                             NULL,
+                             pDstPicture,
+                             x - pParent->drawable.x,
+                             y - pParent->drawable.y, 0, 0, 0, 0, w, h);
+        }
+        if (pSrcPicture)
+            FreePicture(pSrcPicture, 0);
+        if (pDstPicture)
+            FreePicture(pDstPicture, 0);
     }
     return pPixmap;
 }
@@ -471,7 +619,11 @@ compAllocPixmap (WindowPtr pWin)
 
     if (!pPixmap)
 	return FALSE;
-    pWin->redirectDraw = TRUE;
+    if (cw->update == CompositeRedirectAutomatic)
+        pWin->redirectDraw = RedirectDrawAutomatic;
+    else
+        pWin->redirectDraw = RedirectDrawManual;
+
     compSetPixmap (pWin, pPixmap);
     cw->oldx = COMP_ORIGIN_INVALID;
     cw->oldy = COMP_ORIGIN_INVALID;
@@ -481,14 +633,21 @@ compAllocPixmap (WindowPtr pWin)
 	DamageRegister (&pWin->drawable, cw->damage);
 	cw->damageRegistered = TRUE;
     }
+
+    /* Make sure our borderClip is up to date */
+    RegionUninit(&cw->borderClip);
+    RegionCopy(&cw->borderClip, &pWin->borderClip);
+    cw->borderClipX = pWin->drawable.x;
+    cw->borderClipY = pWin->drawable.y;
+
     return TRUE;
 }
 
 void
-compFreePixmap (WindowPtr pWin)
+compSetParentPixmap (WindowPtr pWin)
 {
     ScreenPtr	    pScreen = pWin->drawable.pScreen;
-    PixmapPtr	    pRedirectPixmap, pParentPixmap;
+    PixmapPtr	    pParentPixmap;
     CompWindowPtr   cw = GetCompWindow (pWin);
 
     if (cw->damageRegistered)
@@ -504,11 +663,9 @@ compFreePixmap (WindowPtr pWin)
      * parent exposed area; regions beyond the parent cause crashes
      */
     RegionCopy(&pWin->borderClip, &cw->borderClip);
-    pRedirectPixmap = (*pScreen->GetWindowPixmap) (pWin);
     pParentPixmap = (*pScreen->GetWindowPixmap) (pWin->parent);
-    pWin->redirectDraw = FALSE;
+    pWin->redirectDraw = RedirectDrawNone;
     compSetPixmap (pWin, pParentPixmap);
-    (*pScreen->DestroyPixmap) (pRedirectPixmap);
 }
 
 /*
@@ -527,7 +684,7 @@ compReallocPixmap (WindowPtr pWin, int draw_x, int draw_y,
     int		    pix_x, pix_y;
     int		    pix_w, pix_h;
 
-    assert (cw && pWin->redirectDraw);
+    assert (cw && pWin->redirectDraw != RedirectDrawNone);
     cw->oldx = pOld->screen_x;
     cw->oldy = pOld->screen_y;
     pix_x = draw_x - bw;