Merge branch 'sunweaver-pr/libnx-x11-autoreconf' into 3.6.x

Attributes GH PR #498: https://github.com/ArcticaProject/nx-libs/pull/498

1 files changed, 143 insertions, 0 deletions

diff --git a/nx-X11/lib/src/GetImage.c b/nx-X11/lib/src/GetImage.c
new file mode 100644
index 000000000..d80f6715f
--- /dev/null
+++ b/nx-X11/lib/src/GetImage.c
@@ -0,0 +1,143 @@
+/*
+
+Copyright 1986, 1998  The Open Group
+
+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.
+
+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
+OPEN GROUP 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 Open Group 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 Open Group.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include <nx-X11/Xutil.h>		/* for XDestroyImage */
+#include "ImUtil.h"
+#include <limits.h>
+
+#define ROUNDUP(nbytes, pad) (((((nbytes) - 1) + (pad)) / (pad)) * (pad))
+
+static unsigned int Ones(                /* HACKMEM 169 */
+    unsigned long mask)
+{
+    register unsigned long y;
+
+    y = (mask >> 1) &033333333333;
+    y = mask - y - ((y >>1) & 033333333333);
+    return ((unsigned int) (((y + (y >> 3)) & 030707070707) % 077));
+}
+
+XImage *XGetImage (
+     register Display *dpy,
+     Drawable d,
+     int x,
+     int y,
+     unsigned int width,
+     unsigned int height,
+     unsigned long plane_mask,
+     int format)	/* either XYPixmap or ZPixmap */
+{
+	xGetImageReply rep;
+	register xGetImageReq *req;
+	char *data;
+	unsigned long nbytes;
+	XImage *image;
+	int planes;
+	LockDisplay(dpy);
+	GetReq (GetImage, req);
+	/*
+	 * first set up the standard stuff in the request
+	 */
+	req->drawable = d;
+	req->x = x;
+	req->y = y;
+	req->width = width;
+	req->height = height;
+	req->planeMask = plane_mask;
+	req->format = format;
+
+	if (_XReply (dpy, (xReply *) &rep, 0, xFalse) == 0 ||
+	    rep.length == 0) {
+		UnlockDisplay(dpy);
+		SyncHandle();
+		return (XImage *)NULL;
+	}
+
+	if (rep.length < (INT_MAX >> 2)) {
+	    nbytes = (unsigned long)rep.length << 2;
+	    data = Xmalloc(nbytes);
+	} else
+	    data = NULL;
+	if (! data) {
+	    _XEatDataWords(dpy, rep.length);
+	    UnlockDisplay(dpy);
+	    SyncHandle();
+	    return (XImage *) NULL;
+	}
+        _XReadPad (dpy, data, nbytes);
+        if (format == XYPixmap) {
+	    image = XCreateImage(dpy, _XVIDtoVisual(dpy, rep.visual),
+		Ones (plane_mask &
+		    (((unsigned long)0xFFFFFFFF) >> (32 - rep.depth))),
+		format, 0, data, width, height, dpy->bitmap_pad, 0);
+	    planes = image->depth;
+	} else { /* format == ZPixmap */
+            image = XCreateImage (dpy, _XVIDtoVisual(dpy, rep.visual),
+		rep.depth, ZPixmap, 0, data, width, height,
+		    _XGetScanlinePad(dpy, (int) rep.depth), 0);
+	    planes = 1;
+	}
+
+	if (!image)
+	    Xfree(data);
+	if (planes < 1 || image->height < 1 || image->bytes_per_line < 1 ||
+	    INT_MAX / image->height <= image->bytes_per_line ||
+	    INT_MAX / planes <= image->height * image->bytes_per_line ||
+	    nbytes < planes * image->height * image->bytes_per_line) {
+	    XDestroyImage(image);
+	    image = NULL;
+	}
+	UnlockDisplay(dpy);
+	SyncHandle();
+	return (image);
+}
+
+XImage *XGetSubImage(
+     register Display *dpy,
+     Drawable d,
+     int x,
+     int y,
+     unsigned int width,
+     unsigned int height,
+     unsigned long plane_mask,
+     int format,	/* either XYPixmap or ZPixmap */
+     XImage *dest_image,
+     int dest_x,
+     int dest_y)
+{
+	XImage *temp_image;
+	temp_image = XGetImage(dpy, d, x, y, width, height,
+				plane_mask, format);
+	if (!temp_image)
+	    return (XImage *)NULL;
+	_XSetImage(temp_image, dest_image, dest_x, dest_y);
+	XDestroyImage(temp_image);
+	return (dest_image);
+}