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nixpkgs/pkgs/servers/x11/xorg/darwin/0004-Use-old-miTrapezoids-and-miTriangles-routines.patch
Charles Strahan f178817aee xquartz: 1.14.6 -> 1.17.2 
closes #9126
2015-08-05 13:57:02 -05:00

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From b229a04bde765424542eeba17a7e2bc25785a890 Mon Sep 17 00:00:00 2001
From: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Date: Sat, 2 Nov 2013 11:00:23 -0700
Subject: [PATCH 4/6] Use old miTrapezoids and miTriangles routines
Reverts commits:
788ccb9a8bcf6a4fb4054c507111eec3338fb969
566f1931ee2916269e164e114bffaf2da1d039d1
http://xquartz.macosforge.org/trac/ticket/525
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
---
fb/fbpict.c | 2 -
render/mipict.c | 4 +-
render/mipict.h | 27 ++++++++++++++
render/mitrap.c | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
render/mitri.c | 61 +++++++++++++++++++++++++++++++
5 files changed, 201 insertions(+), 4 deletions(-)
diff --git a/fb/fbpict.c b/fb/fbpict.c
index c8378ad..cafb027 100644
--- a/fb/fbpict.c
+++ b/fb/fbpict.c
@@ -499,10 +499,8 @@ fbPictureInit(ScreenPtr pScreen, PictFormatPtr formats, int nformats)
ps->UnrealizeGlyph = fbUnrealizeGlyph;
ps->CompositeRects = miCompositeRects;
ps->RasterizeTrapezoid = fbRasterizeTrapezoid;
- ps->Trapezoids = fbTrapezoids;
ps->AddTraps = fbAddTraps;
ps->AddTriangles = fbAddTriangles;
- ps->Triangles = fbTriangles;
return TRUE;
}
diff --git a/render/mipict.c b/render/mipict.c
index a725104..e14293a 100644
--- a/render/mipict.c
+++ b/render/mipict.c
@@ -575,8 +575,8 @@ miPictureInit(ScreenPtr pScreen, PictFormatPtr formats, int nformats)
ps->Composite = 0; /* requires DDX support */
ps->Glyphs = miGlyphs;
ps->CompositeRects = miCompositeRects;
- ps->Trapezoids = 0;
- ps->Triangles = 0;
+ ps->Trapezoids = miTrapezoids;
+ ps->Triangles = miTriangles;
ps->RasterizeTrapezoid = 0; /* requires DDX support */
ps->AddTraps = 0; /* requires DDX support */
diff --git a/render/mipict.h b/render/mipict.h
index 23ce9e8..e0f1d4c 100644
--- a/render/mipict.h
+++ b/render/mipict.h
@@ -122,6 +122,16 @@ miCompositeRects(CARD8 op,
xRenderColor * color, int nRect, xRectangle *rects);
extern _X_EXPORT void
+miTriangles (CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pDst,
+ PictFormatPtr maskFormat,
+ INT16 xSrc,
+ INT16 ySrc,
+ int ntri,
+ xTriangle *tris);
+
+extern _X_EXPORT void
miTriStrip(CARD8 op,
PicturePtr pSrc,
@@ -137,10 +147,27 @@ miTriFan(CARD8 op,
PictFormatPtr maskFormat,
INT16 xSrc, INT16 ySrc, int npoints, xPointFixed * points);
+extern _X_EXPORT PicturePtr
+miCreateAlphaPicture (ScreenPtr pScreen,
+ PicturePtr pDst,
+ PictFormatPtr pPictFormat,
+ CARD16 width,
+ CARD16 height);
+
extern _X_EXPORT void
miTrapezoidBounds(int ntrap, xTrapezoid * traps, BoxPtr box);
extern _X_EXPORT void
+miTrapezoids (CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pDst,
+ PictFormatPtr maskFormat,
+ INT16 xSrc,
+ INT16 ySrc,
+ int ntrap,
+ xTrapezoid *traps);
+
+extern _X_EXPORT void
miPointFixedBounds(int npoint, xPointFixed * points, BoxPtr bounds);
extern _X_EXPORT void
diff --git a/render/mitrap.c b/render/mitrap.c
index 17b6dcd..71c1857 100644
--- a/render/mitrap.c
+++ b/render/mitrap.c
@@ -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)
{
@@ -79,3 +128,65 @@ 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);
+ }
+}
diff --git a/render/mitri.c b/render/mitri.c
index 922f22a..bdca9ca 100644
--- a/render/mitri.c
+++ b/render/mitri.c
@@ -65,3 +65,64 @@ miTriangleBounds(int ntri, xTriangle * tris, BoxPtr bounds)
{
miPointFixedBounds(ntri * 3, (xPointFixed *) tris, bounds);
}
+
+
+void
+miTriangles (CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pDst,
+ PictFormatPtr maskFormat,
+ INT16 xSrc,
+ INT16 ySrc,
+ int ntri,
+ xTriangle *tris)
+{
+ ScreenPtr pScreen = pDst->pDrawable->pScreen;
+ PictureScreenPtr ps = GetPictureScreen(pScreen);
+
+ /*
+ * Check for solid alpha add
+ */
+ if (op == PictOpAdd && miIsSolidAlpha (pSrc))
+ {
+ (*ps->AddTriangles) (pDst, 0, 0, ntri, tris);
+ }
+ else if (maskFormat)
+ {
+ BoxRec bounds;
+ PicturePtr pPicture;
+ INT16 xDst, yDst;
+ INT16 xRel, yRel;
+
+ xDst = tris[0].p1.x >> 16;
+ yDst = tris[0].p1.y >> 16;
+
+ miTriangleBounds (ntri, tris, &bounds);
+ if (bounds.x2 <= bounds.x1 || bounds.y2 <= bounds.y1)
+ return;
+ pPicture = miCreateAlphaPicture (pScreen, pDst, maskFormat,
+ bounds.x2 - bounds.x1,
+ bounds.y2 - bounds.y1);
+ if (!pPicture)
+ return;
+ (*ps->AddTriangles) (pPicture, -bounds.x1, -bounds.y1, ntri, tris);
+
+ 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 (; ntri; ntri--, tris++)
+ miTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, tris);
+ }
+}
+
--
2.3.2 (Apple Git-55)
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