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-rw-r--r--src/Color.c90
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diff --git a/src/Color.c b/src/Color.c
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+++ b/src/Color.c
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+/*
+ * $XFree86: xc/lib/Xrender/Color.c,v 1.1 2002/05/17 22:34:18 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"
+
+Status
+XRenderParseColor(Display *dpy, char *spec, XRenderColor *def)
+{
+
+ if (!strncmp (spec, "rgba:", 5))
+ {
+ unsigned short elements[4];
+ unsigned short *pShort;
+ int i, n;
+ char c;
+
+ spec += 5;
+ /*
+ * Attempt to parse the value portion.
+ */
+ pShort = elements;
+ for (i = 0; i < 4; i++, pShort++, spec++) {
+ n = 0;
+ *pShort = 0;
+ while (*spec != '/' && *spec != '\0') {
+ if (++n > 4) {
+ return 0;
+ }
+ c = *spec++;
+ *pShort <<= 4;
+ if (c >= '0' && c <= '9')
+ *pShort |= c - '0';
+ /* assume string in lowercase
+ else if (c >= 'A' && c <= 'F')
+ *pShort |= c - ('A' - 10);
+ */
+ else if (c >= 'a' && c <= 'f')
+ *pShort |= c - ('a' - 10);
+ else return 0;
+ }
+ if (n == 0)
+ return 0;
+ if (n < 4) {
+ *pShort = ((unsigned long)*pShort * 0xFFFF) / ((1 << n*4) - 1);
+ }
+ }
+ def->red = elements[0];
+ def->green = elements[1];
+ def->blue = elements[2];
+ def->alpha = elements[3];
+ }
+ else
+ {
+ XColor coreColor;
+ Colormap colormap;
+
+ colormap = DefaultColormap (dpy, DefaultScreen (dpy));
+ if (!XParseColor (dpy, colormap, spec, &coreColor))
+ return 0;
+ def->red = coreColor.red;
+ def->green = coreColor.green;
+ def->blue = coreColor.blue;
+ def->alpha = 0xffff;
+ }
+ def->red = (def->red * def->alpha) / 65535;
+ def->green = (def->green * def->alpha) / 65535;
+ def->blue = (def->blue * def->alpha) / 65535;
+ return 1;
+}