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Diffstat (limited to 'xorg-server/hw/xfree86/xaa/xaaRect.c')
-rw-r--r--xorg-server/hw/xfree86/xaa/xaaRect.c136
1 files changed, 136 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/xaa/xaaRect.c b/xorg-server/hw/xfree86/xaa/xaaRect.c
new file mode 100644
index 000000000..0a7e174b7
--- /dev/null
+++ b/xorg-server/hw/xfree86/xaa/xaaRect.c
@@ -0,0 +1,136 @@
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "misc.h"
+#include "xf86.h"
+#include "xf86_OSproc.h"
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "xf86str.h"
+#include "xaa.h"
+#include "xaalocal.h"
+
+/*
+ Much of this file based on code by
+ Harm Hanemaayer (H.Hanemaayer@inter.nl.net).
+*/
+
+
+void
+XAAPolyRectangleThinSolid(
+ DrawablePtr pDrawable,
+ GCPtr pGC,
+ int nRectsInit,
+ xRectangle *pRectsInit )
+{
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ int nClipRects; /* number of clip rectangles */
+ BoxPtr pClipRects; /* points to the list of clip rects */
+ int xOrigin; /* Drawables x origin */
+ int yOrigin; /* Drawables x origin */
+ xRectangle *pRect; /* list of rects */
+ int nRects; /* running count of number of rects */
+ int origX1, origY1; /* original rectangle's U/L corner */
+ int origX2, origY2; /* original rectangle's L/R corner */
+ int clippedX1; /* clipped rectangle's left x */
+ int clippedY1; /* clipped rectangle's top y */
+ int clippedX2; /* clipped rectangle's right x */
+ int clippedY2; /* clipped rectangle's bottom y */
+ int clipXMin; /* upper left corner of clip rect */
+ int clipYMin; /* upper left corner of clip rect */
+ int clipXMax; /* lower right corner of clip rect */
+ int clipYMax; /* lower right corner of clip rect */
+ int width, height; /* width and height of rect */
+
+ nClipRects = REGION_NUM_RECTS(pGC->pCompositeClip);
+ pClipRects = REGION_RECTS(pGC->pCompositeClip);
+
+ if(!nClipRects) return;
+
+ xOrigin = pDrawable->x;
+ yOrigin = pDrawable->y;
+
+
+ (*infoRec->SetupForSolidLine)(infoRec->pScrn,
+ pGC->fgPixel, pGC->alu, pGC->planemask);
+
+
+ for ( ; nClipRects > 0;
+ nClipRects--, pClipRects++ )
+ {
+ clipYMin = pClipRects->y1;
+ clipYMax = pClipRects->y2 - 1;
+ clipXMin = pClipRects->x1;
+ clipXMax = pClipRects->x2 - 1;
+
+ for (pRect = pRectsInit, nRects = nRectsInit;
+ nRects > 0;
+ nRects--, pRect++ )
+ {
+ /* translate rectangle data over to the drawable */
+ origX1 = pRect->x + xOrigin;
+ origY1 = pRect->y + yOrigin;
+ origX2 = origX1 + pRect->width;
+ origY2 = origY1 + pRect->height;
+
+ /* reject entire rectangle if completely outside clip rect */
+ if ((origX1 > clipXMax) || (origX2 < clipXMin) ||
+ (origY1 > clipYMax) || (origY2 < clipYMin))
+ continue;
+
+ /* clip the rectangle */
+ clippedX1 = max (origX1, clipXMin);
+ clippedX2 = min (origX2, clipXMax);
+ clippedY1 = max (origY1, clipYMin);
+ clippedY2 = min (origY2, clipYMax);
+
+ width = clippedX2 - clippedX1 + 1;
+
+ if (origY1 >= clipYMin) {
+ (*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
+ clippedX1, clippedY1, width, DEGREES_0);
+
+ /* don't overwrite corner */
+ clippedY1++;
+ }
+
+ if ((origY2 <= clipYMax) && (origY1 != origY2)) {
+ (*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
+ clippedX1, clippedY2, width, DEGREES_0);
+
+ /* don't overwrite corner */
+ clippedY2--;
+ }
+
+ if (clippedY2 < clippedY1) continue;
+
+ height = clippedY2 - clippedY1 + 1;
+
+ /* draw vertical edges using lines if not clipped out */
+ if (origX1 >= clipXMin)
+ (*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
+ clippedX1, clippedY1, height, DEGREES_270);
+
+ if ((origX2 <= clipXMax) && (origX2 != origX1))
+ (*infoRec->SubsequentSolidHorVertLine)(infoRec->pScrn,
+ clippedX2, clippedY1, height, DEGREES_270);
+ }
+ }
+
+ SET_SYNC_FLAG(infoRec);
+}
+
+
+
+
+
+
+
+
+
+
+