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-rw-r--r--libXrender/src/AddTrap.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/libXrender/src/AddTrap.c b/libXrender/src/AddTrap.c
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+/*
+ * Copyright © 2004 Keith Packard
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xrenderint.h"
+
+#define NLOCAL 256
+
+void
+XRenderAddTraps (Display *dpy,
+ Picture picture,
+ int xOff,
+ int yOff,
+ _Xconst XTrap *traps,
+ int ntrap)
+{
+ XRenderExtDisplayInfo *info = XRenderFindDisplay (dpy);
+ xRenderAddTrapsReq *req;
+ int n;
+ long len;
+ unsigned long max_req = dpy->bigreq_size ? dpy->bigreq_size : dpy->max_request_size;
+
+ RenderSimpleCheckExtension (dpy, info);
+ LockDisplay(dpy);
+ while (ntrap)
+ {
+ GetReq(RenderAddTraps, req);
+ req->reqType = info->codes->major_opcode;
+ req->renderReqType = X_RenderAddTraps;
+ req->picture = picture;
+ req->xOff = xOff;
+ req->yOff = yOff;
+ n = ntrap;
+ len = ((long) n) * (SIZEOF (xTrap) >> 2);
+ if (len > (max_req - req->length)) {
+ n = (max_req - req->length) / (SIZEOF (xTrap) >> 2);
+ len = ((long)n) * (SIZEOF (xTrap) >> 2);
+ }
+ SetReqLen (req, len, len);
+ len <<= 2;
+ DataInt32 (dpy, (int *) traps, len);
+ ntrap -= n;
+ traps += n;
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+}