Move miTrapezoids() into fb as fbTrapezoids()

The main consumer of trapezoids, cairo, is using the Trapezoids
request, which is currently implemented in the miTrapezoids()
function. That function splits the request into smaller bits and calls
lower level functions such as AddTrap.

By moving the implementation of the whole request into fb, we can
instead call pixman_composite_trapezoids() to do the whole request in
one step.

There are no callers of miTrapezoids in any of the open source
drivers, although exa and uxa have their own copies of the function.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Søren Sandmann <ssp@redhat.com>

1 files changed, 0 insertions, 61 deletions

diff --git a/render/mitrap.c b/render/mitrap.c
index 8bdc8a8d0..1f09a1eb9 100644
--- a/render/mitrap.c
+++ b/render/mitrap.c
@@ -126,64 +126,3 @@ miTrapezoidBounds (int ntrap, xTrapezoid *traps, BoxPtr box)
 	    box->x2 = x2;
     }
 }
-
-void
-miTrapezoids (CARD8	    op,
-	      PicturePtr    pSrc,
-	      PicturePtr    pDst,
-	      PictFormatPtr maskFormat,
-	      INT16	    xSrc,
-	      INT16	    ySrc,
-	      int	    ntrap,
-	      xTrapezoid    *traps)
-{
-    ScreenPtr		pScreen = pDst->pDrawable->pScreen;
-    PictureScreenPtr    ps = GetPictureScreen(pScreen);
-
-    /*
-     * 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;
-	pPicture = miCreateAlphaPicture (pScreen, pDst, maskFormat,
-					 bounds.x2 - bounds.x1,
-					 bounds.y2 - bounds.y1);
-	if (!pPicture)
-	    return;
-	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,
-			  xRel, yRel, 0, 0, bounds.x1, bounds.y1,
-			  bounds.x2 - bounds.x1,
-			  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);
-    }
-}