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Diffstat (limited to 'hw/xfree86/xf4bpp/mfbfillarc.c')
-rw-r--r--hw/xfree86/xf4bpp/mfbfillarc.c299
1 files changed, 299 insertions, 0 deletions
diff --git a/hw/xfree86/xf4bpp/mfbfillarc.c b/hw/xfree86/xf4bpp/mfbfillarc.c
new file mode 100644
index 000000000..14c2ccb66
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+++ b/hw/xfree86/xf4bpp/mfbfillarc.c
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+/* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/mfbfillarc.c,v 1.5 2003/02/18 21:29:59 tsi Exp $ */
+/************************************************************
+
+Copyright (c) 1989 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+
+********************************************************/
+
+/* GJA -- Took mfb code and modified it. */
+
+/* $XConsortium: mfbfillarc.c /main/4 1996/02/21 17:56:37 kaleb $ */
+
+#include "xf4bpp.h"
+#include "OScompiler.h"
+#include "mfbmap.h"
+#include "mfb.h"
+#include "maskbits.h"
+#include "mi.h"
+#include "mifillarc.h"
+#include "wm3.h"
+
+#include "xf86str.h" /* for pScrn->vtSema */
+extern ScrnInfoPtr *xf86Screens;
+
+static void
+v16FillEllipseSolid
+(
+ DrawablePtr pDraw,
+ xArc *arc
+)
+{
+ int x, y, e;
+ int yk, xk, ym, xm, dx, dy, xorg, yorg;
+ register int slw;
+ miFillArcRec info;
+ int *addrlt, *addrlb;
+ register int *addrl;
+ register int n;
+ int nlwidth;
+ register int xpos;
+ int startmask, endmask, nlmiddle;
+
+ if (pDraw->type == DRAWABLE_WINDOW)
+ {
+ addrlt = (int *)
+ (((PixmapPtr)(pDraw->pScreen->devPrivate))->devPrivate.ptr);
+ nlwidth = (int)
+ (((PixmapPtr)(pDraw->pScreen->devPrivate))->devKind) >> 2;
+ }
+ else
+ {
+ addrlt = (int *)(((PixmapPtr)pDraw)->devPrivate.ptr);
+ nlwidth = (int)(((PixmapPtr)pDraw)->devKind) >> 2;
+ }
+
+ miFillArcSetup(arc, &info);
+ MIFILLARCSETUP();
+ xorg += pDraw->x;
+ yorg += pDraw->y;
+ addrlb = addrlt;
+ addrlt += nlwidth * (yorg - y);
+ addrlb += nlwidth * (yorg + y + dy);
+ while (y)
+ {
+ addrlt += nlwidth;
+ addrlb -= nlwidth;
+ MIFILLARCSTEP(slw);
+ if (!slw)
+ continue;
+ xpos = xorg - x;
+ addrl = addrlt + (xpos >> PWSH);
+ if (((xpos & PIM) + slw) < PPW)
+ {
+ maskpartialbits(xpos, slw, startmask);
+ UPDRW(addrl,startmask);
+ if (miFillArcLower(slw))
+ {
+ addrl = addrlb + (xpos >> PWSH);
+ UPDRW(addrl,startmask);
+ }
+ continue;
+ }
+ maskbits(xpos, slw, startmask, endmask, nlmiddle);
+ if (startmask)
+ {
+ UPDRW(addrl,startmask); addrl++;
+ }
+ n = nlmiddle;
+ while (n--) {
+ UPDRW(addrl,~0); addrl++;
+ }
+ if (endmask)
+ {
+ UPDRW(addrl,endmask);
+ }
+ if (!miFillArcLower(slw))
+ continue;
+ addrl = addrlb + (xpos >> PWSH);
+ if (startmask)
+ {
+ UPDRW(addrl,startmask); addrl++;
+ }
+ n = nlmiddle;
+ while (n--) {
+ UPDRW(addrl,~0); addrl++;
+ }
+ if (endmask)
+ {
+ UPDRW(addrl,endmask);
+ }
+ }
+}
+
+#define FILLSPAN(xl,xr,addr) \
+ if (xr >= xl) \
+ { \
+ width = xr - xl + 1; \
+ addrl = addr + (xl >> PWSH); \
+ if (((xl & PIM) + width) < PPW) \
+ { \
+ maskpartialbits(xl, width, startmask); \
+ UPDRW(addrl,startmask); \
+ } \
+ else \
+ { \
+ maskbits(xl, width, startmask, endmask, nlmiddle); \
+ if (startmask) \
+ { \
+ UPDRW(addrl,startmask); addrl++; \
+ } \
+ n = nlmiddle; \
+ while (n--) { \
+ UPDRW(addrl,~0); addrl++; \
+ } \
+ if (endmask) \
+ { \
+ UPDRW(addrl,endmask); \
+ } \
+ } \
+ }
+
+#define FILLSLICESPANS(flip,addr) \
+ if (!flip) \
+ { \
+ FILLSPAN(xl, xr, addr); \
+ } \
+ else \
+ { \
+ xc = xorg - x; \
+ FILLSPAN(xc, xr, addr); \
+ xc += slw - 1; \
+ FILLSPAN(xl, xc, addr); \
+ }
+
+static void
+v16FillArcSliceSolidCopy
+(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ xArc *arc
+)
+{
+ register int *addrl;
+ register int n;
+ int yk, xk, ym, xm, dx, dy, xorg, yorg, slw;
+ register int x, y, e;
+ miFillArcRec info;
+ miArcSliceRec slice;
+ int xl, xr, xc;
+ int *addrlt, *addrlb;
+ int nlwidth;
+ int width;
+ int startmask, endmask, nlmiddle;
+
+ if (pDraw->type == DRAWABLE_WINDOW)
+ {
+ addrlt = (int *)
+ (((PixmapPtr)(pDraw->pScreen->devPrivate))->devPrivate.ptr);
+ nlwidth = (int)
+ (((PixmapPtr)(pDraw->pScreen->devPrivate))->devKind) >> 2;
+ }
+ else
+ {
+ addrlt = (int *)(((PixmapPtr)pDraw)->devPrivate.ptr);
+ nlwidth = (int)(((PixmapPtr)pDraw)->devKind) >> 2;
+ }
+
+ miFillArcSetup(arc, &info);
+ miFillArcSliceSetup(arc, &slice, pGC);
+ MIFILLARCSETUP();
+ xorg += pDraw->x;
+ yorg += pDraw->y;
+ addrlb = addrlt;
+ addrlt += nlwidth * (yorg - y);
+ addrlb += nlwidth * (yorg + y + dy);
+ slice.edge1.x += pDraw->x;
+ slice.edge2.x += pDraw->x;
+ while (y > 0)
+ {
+ addrlt += nlwidth;
+ addrlb -= nlwidth;
+ MIFILLARCSTEP(slw);
+ MIARCSLICESTEP(slice.edge1);
+ MIARCSLICESTEP(slice.edge2);
+ if (miFillSliceUpper(slice))
+ {
+ MIARCSLICEUPPER(xl, xr, slice, slw);
+ FILLSLICESPANS(slice.flip_top, addrlt);
+ }
+ if (miFillSliceLower(slice))
+ {
+ MIARCSLICELOWER(xl, xr, slice, slw);
+ FILLSLICESPANS(slice.flip_bot, addrlb);
+ }
+ }
+}
+
+static void
+xf4bppPolyFillArcSolid
+(
+ register DrawablePtr pDraw,
+ GCPtr pGC,
+ int narcs,
+ xArc *parcs
+)
+{
+ mfbPrivGC *priv;
+ register xArc *arc;
+ register int i;
+ BoxRec box;
+ RegionPtr cclip;
+ int rop;
+
+ priv = (mfbPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr;
+ rop = priv->rop;
+#if 0
+ if ((rop == RROP_NOP) || !(pGC->planemask & 1))
+#else
+ if ( !(pGC->planemask & 0x0F))
+#endif
+ return;
+ cclip = pGC->pCompositeClip;
+ for (arc = parcs, i = narcs; --i >= 0; arc++)
+ {
+ if (miFillArcEmpty(arc))
+ continue;
+ if (miCanFillArc(arc))
+ {
+ box.x1 = arc->x + pDraw->x;
+ box.y1 = arc->y + pDraw->y;
+ box.x2 = box.x1 + (int)arc->width + 1;
+ box.y2 = box.y1 + (int)arc->height + 1;
+ if (RECT_IN_REGION(pDraw->pScreen, cclip, &box) == rgnIN)
+ {
+ if ((arc->angle2 >= FULLCIRCLE) ||
+ (arc->angle2 <= -FULLCIRCLE))
+ DO_WM3(pGC,v16FillEllipseSolid(pDraw, arc))
+ else
+ DO_WM3(pGC,v16FillArcSliceSolidCopy(pDraw, pGC, arc))
+ continue;
+ }
+ }
+ miPolyFillArc(pDraw, pGC, 1, arc);
+ }
+}
+
+void
+xf4bppPolyFillArc(pDraw, pGC, narcs, parcs)
+ register DrawablePtr pDraw;
+ GCPtr pGC;
+ int narcs;
+ xArc *parcs;
+{
+ if ( !xf86Screens[pDraw->pScreen->myNum]->vtSema || (pGC->fillStyle != FillSolid) ) {
+ miPolyFillArc(pDraw, pGC, narcs, parcs);
+ } else {
+ xf4bppPolyFillArcSolid(pDraw, pGC, narcs, parcs);
+ }
+}
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