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-rw-r--r--src/Tri.c167
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diff --git a/src/Tri.c b/src/Tri.c
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+++ b/src/Tri.c
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+/*
+ * $XFree86: xc/lib/Xrender/Tri.c,v 1.3 2002/11/05 23:22:35 keithp Exp $
+ *
+ * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "Xrenderint.h"
+
+void
+XRenderCompositeTriangles (Display *dpy,
+ int op,
+ Picture src,
+ Picture dst,
+ _Xconst XRenderPictFormat *maskFormat,
+ int xSrc,
+ int ySrc,
+ _Xconst XTriangle *triangles,
+ int ntriangle)
+{
+ XExtDisplayInfo *info = XRenderFindDisplay (dpy);
+ xRenderTrianglesReq *req;
+ int n;
+ long len;
+
+ RenderSimpleCheckExtension (dpy, info);
+ LockDisplay(dpy);
+ while (ntriangle)
+ {
+ GetReq(RenderTriangles, req);
+ req->reqType = info->codes->major_opcode;
+ req->renderReqType = X_RenderTriangles;
+ req->op = (CARD8) op;
+ req->src = src;
+ req->dst = dst;
+ req->maskFormat = maskFormat ? maskFormat->id : 0;
+ req->xSrc = xSrc;
+ req->ySrc = ySrc;
+ n = ntriangle;
+ len = ((long) n) * (SIZEOF (xTriangle) >> 2);
+ if (!dpy->bigreq_size && len > (dpy->max_request_size - req->length)) {
+ n = (dpy->max_request_size - req->length) / (SIZEOF (xTriangle) >> 2);
+ len = ((long)n) * (SIZEOF (xTriangle) >> 2);
+ }
+ SetReqLen (req, len, len);
+ len <<= 2;
+ DataInt32 (dpy, (int *) triangles, len);
+ ntriangle -= n;
+ triangles += n;
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+void
+XRenderCompositeTriStrip (Display *dpy,
+ int op,
+ Picture src,
+ Picture dst,
+ _Xconst XRenderPictFormat *maskFormat,
+ int xSrc,
+ int ySrc,
+ _Xconst XPointFixed *points,
+ int npoint)
+{
+ XExtDisplayInfo *info = XRenderFindDisplay (dpy);
+ xRenderTriStripReq *req;
+ int n;
+ long len;
+
+ RenderSimpleCheckExtension (dpy, info);
+ LockDisplay(dpy);
+ while (npoint > 2)
+ {
+ GetReq(RenderTriStrip, req);
+ req->reqType = info->codes->major_opcode;
+ req->renderReqType = X_RenderTriStrip;
+ req->op = (CARD8) op;
+ req->src = src;
+ req->dst = dst;
+ req->maskFormat = maskFormat ? maskFormat->id : 0;
+ req->xSrc = xSrc;
+ req->ySrc = ySrc;
+ n = npoint;
+ len = ((long) n) * (SIZEOF (xPointFixed) >> 2);
+ if (!dpy->bigreq_size && len > (dpy->max_request_size - req->length)) {
+ n = (dpy->max_request_size - req->length) / (SIZEOF (xPointFixed) >> 2);
+ len = ((long)n) * (SIZEOF (xPointFixed) >> 2);
+ }
+ SetReqLen (req, len, len);
+ len <<= 2;
+ DataInt32 (dpy, (int *) points, len);
+ npoint -= (n - 2);
+ points += (n - 2);
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+}
+
+void
+XRenderCompositeTriFan (Display *dpy,
+ int op,
+ Picture src,
+ Picture dst,
+ _Xconst XRenderPictFormat *maskFormat,
+ int xSrc,
+ int ySrc,
+ _Xconst XPointFixed *points,
+ int npoint)
+{
+ XExtDisplayInfo *info = XRenderFindDisplay (dpy);
+ _Xconst XPointFixed *first = points;
+ xPointFixed *p;
+ xRenderTriFanReq *req;
+ int n;
+ long len;
+
+ RenderSimpleCheckExtension (dpy, info);
+ LockDisplay(dpy);
+ points++;
+ npoint--;
+ while (npoint > 1)
+ {
+ GetReqExtra(RenderTriFan, SIZEOF (xPointFixed), req);
+ req->reqType = info->codes->major_opcode;
+ req->renderReqType = X_RenderTriFan;
+ req->op = (CARD8) op;
+ req->src = src;
+ req->dst = dst;
+ req->maskFormat = maskFormat ? maskFormat->id : 0;
+ req->xSrc = xSrc;
+ req->ySrc = ySrc;
+ p = (xPointFixed *) (req + 1);
+ p->x = first->x;
+ p->y = first->y;
+ n = npoint;
+ len = ((long) n) * (SIZEOF (xPointFixed) >> 2);
+ if (!dpy->bigreq_size && len > (dpy->max_request_size - req->length)) {
+ n = (dpy->max_request_size - req->length) / (SIZEOF (xPointFixed) >> 2);
+ len = ((long)n) * (SIZEOF (xPointFixed) >> 2);
+ }
+ SetReqLen (req, len, len);
+ len <<= 2;
+ DataInt32 (dpy, (int *) points, len);
+ npoint -= (n - 1);
+ points += (n - 1);
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+}