Add RenderAddTraps. Rewrite trapezoid rendering code.

1 files changed, 30 insertions, 40 deletions

diff --git a/render/mitrap.c b/render/mitrap.c
index 05db36ec8..77cdcf03f 100644
--- a/render/mitrap.c
+++ b/render/mitrap.c
@@ -136,16 +136,25 @@ miTrapezoids (CARD8	    op,
 {
     ScreenPtr		pScreen = pDst->pDrawable->pScreen;
     PictureScreenPtr    ps = GetPictureScreen(pScreen);
-    PicturePtr		pPicture = 0;
-    BoxRec		bounds;
-    INT16		xDst, yDst;
-    INT16		xRel, yRel;
-    
-    xDst = traps[0].left.p1.x >> 16;
-    yDst = traps[0].left.p1.y >> 16;
-    
-    if (maskFormat)
+
+    /*
+     * Check for solid alpha add
+     */
+    if (op == PictOpAdd && miIsSolidAlpha (pSrc))
+    {
+	for (; ntrap; ntrap--, traps++)
+	    (*ps->RasterizeTrapezoid) (pDst, traps, 0, 0);
+    } 
+    else if (maskFormat)
     {
+	PicturePtr	pPicture;
+	BoxRec		bounds;
+	INT16		xDst, yDst;
+	INT16		xRel, yRel;
+	
+	xDst = traps[0].left.p1.x >> 16;
+	yDst = traps[0].left.p1.y >> 16;
+
 	miTrapezoidBounds (ntrap, traps, &bounds);
 	if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
 	    return;
@@ -154,37 +163,9 @@ miTrapezoids (CARD8	    op,
 					 bounds.y2 - bounds.y1);
 	if (!pPicture)
 	    return;
-    }
-    for (; ntrap; ntrap--, traps++)
-    {
-	if (!xTrapezoidValid(traps))
-	    continue;
-	if (!maskFormat)
-	{
-	    miTrapezoidBounds (1, traps, &bounds);
-	    if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
-		continue;
-	    pPicture = miCreateAlphaPicture (pScreen, pDst, maskFormat,
-					     bounds.x2 - bounds.x1,
-					     bounds.y2 - bounds.y1);
-	    if (!pPicture)
-		continue;
-	}
-	(*ps->RasterizeTrapezoid) (pPicture, traps, 
-				   -bounds.x1, -bounds.y1);
-	if (!maskFormat)
-	{
-	    xRel = bounds.x1 + xSrc - xDst;
-	    yRel = bounds.y1 + ySrc - yDst;
-	    CompositePicture (op, pSrc, pPicture, pDst,
-			      xRel, yRel, 0, 0, bounds.x1, bounds.y1,
-			      bounds.x2 - bounds.x1,
-			      bounds.y2 - bounds.y1);
-	    FreePicture (pPicture, 0);
-	}
-    }
-    if (maskFormat)
-    {
+	for (; ntrap; ntrap--, traps++)
+	    (*ps->RasterizeTrapezoid) (pPicture, traps, 
+				       -bounds.x1, -bounds.y1);
 	xRel = bounds.x1 + xSrc - xDst;
 	yRel = bounds.y1 + ySrc - yDst;
 	CompositePicture (op, pSrc, pPicture, pDst,
@@ -193,4 +174,13 @@ miTrapezoids (CARD8	    op,
 			  bounds.y2 - bounds.y1);
 	FreePicture (pPicture, 0);
     }
+    else
+    {
+	if (pDst->polyEdge == PolyEdgeSharp)
+	    maskFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
+	else
+	    maskFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
+	for (; ntrap; ntrap--, traps++)
+	    miTrapezoids (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, traps);
+    }
 }