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-rw-r--r--extra/xorg-server/revert-trapezoids.patch179
1 files changed, 179 insertions, 0 deletions
diff --git a/extra/xorg-server/revert-trapezoids.patch b/extra/xorg-server/revert-trapezoids.patch
new file mode 100644
index 000000000..b9046c5cb
--- /dev/null
+++ b/extra/xorg-server/revert-trapezoids.patch
@@ -0,0 +1,179 @@
+diff -ru a/fb/fbpict.c b/fb/fbpict.c
+--- a/fb/fbpict.c 2011-08-01 01:44:24.000000000 +0200
++++ b/fb/fbpict.c 2011-10-05 22:45:29.000000000 +0200
+@@ -364,7 +364,7 @@
+ ps->Glyphs = miGlyphs;
+ ps->CompositeRects = miCompositeRects;
+ ps->RasterizeTrapezoid = fbRasterizeTrapezoid;
+- ps->Trapezoids = fbTrapezoids;
++ ps->Trapezoids = miTrapezoids;
+ ps->AddTraps = fbAddTraps;
+ ps->AddTriangles = fbAddTriangles;
+ ps->Triangles = fbTriangles;
+diff -ru a/render/mipict.c b/render/mipict.c
+--- a/render/mipict.c 2011-04-04 05:19:50.000000000 +0200
++++ b/render/mipict.c 2011-10-05 22:02:53.000000000 +0200
+@@ -573,6 +573,67 @@
+ }
+ }
+
++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);
++ }
++}
++
+ Bool
+ miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
+ {
+@@ -599,7 +660,7 @@
+ ps->Composite = 0; /* requires DDX support */
+ ps->Glyphs = miGlyphs;
+ ps->CompositeRects = miCompositeRects;
+- ps->Trapezoids = 0;
++ ps->Trapezoids = miTrapezoids;
+ ps->Triangles = 0;
+
+ ps->RasterizeTrapezoid = 0; /* requires DDX support */
+diff -ru a/render/mipict.h b/render/mipict.h
+--- a/render/mipict.h 2011-04-04 05:19:50.000000000 +0200
++++ b/render/mipict.h 2011-10-05 22:06:19.000000000 +0200
+@@ -129,6 +129,23 @@
+ CARD32 pixel,
+ xRenderColor *color);
+
++extern _X_EXPORT PicturePtr
++miCreateAlphaPicture (ScreenPtr pScreen,
++ PicturePtr pDst,
++ PictFormatPtr pPictFormat,
++ CARD16 width,
++ CARD16 height);
++
++extern _X_EXPORT void
++miTrapezoids (CARD8 op,
++ PicturePtr pSrc,
++ PicturePtr pDst,
++ PictFormatPtr maskFormat,
++ INT16 xSrc,
++ INT16 ySrc,
++ int ntrap,
++ xTrapezoid *traps);
++
+ extern _X_EXPORT Bool
+ miIsSolidAlpha (PicturePtr pSrc);
+
+diff -ru a/render/mitrap.c b/render/mitrap.c
+--- a/render/mitrap.c 2011-04-04 05:19:50.000000000 +0200
++++ b/render/mitrap.c 2011-10-05 22:05:29.000000000 +0200
+@@ -34,6 +34,55 @@
+ #include "picturestr.h"
+ #include "mipict.h"
+
++PicturePtr
++miCreateAlphaPicture (ScreenPtr pScreen,
++ PicturePtr pDst,
++ PictFormatPtr pPictFormat,
++ CARD16 width,
++ CARD16 height)
++{
++ PixmapPtr pPixmap;
++ PicturePtr pPicture;
++ GCPtr pGC;
++ int error;
++ xRectangle rect;
++
++ if (width > 32767 || height > 32767)
++ return 0;
++
++ if (!pPictFormat)
++ {
++ if (pDst->polyEdge == PolyEdgeSharp)
++ pPictFormat = PictureMatchFormat (pScreen, 1, PICT_a1);
++ else
++ pPictFormat = PictureMatchFormat (pScreen, 8, PICT_a8);
++ if (!pPictFormat)
++ return 0;
++ }
++
++ pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height,
++ pPictFormat->depth, 0);
++ if (!pPixmap)
++ return 0;
++ pGC = GetScratchGC (pPixmap->drawable.depth, pScreen);
++ if (!pGC)
++ {
++ (*pScreen->DestroyPixmap) (pPixmap);
++ return 0;
++ }
++ ValidateGC (&pPixmap->drawable, pGC);
++ rect.x = 0;
++ rect.y = 0;
++ rect.width = width;
++ rect.height = height;
++ (*pGC->ops->PolyFillRect)(&pPixmap->drawable, pGC, 1, &rect);
++ FreeScratchGC (pGC);
++ pPicture = CreatePicture (0, &pPixmap->drawable, pPictFormat,
++ 0, 0, serverClient, &error);
++ (*pScreen->DestroyPixmap) (pPixmap);
++ return pPicture;
++}
++
+ static xFixed
+ miLineFixedX (xLineFixed *l, xFixed y, Bool ceil)
+ {
+