1 files changed, 90 insertions, 0 deletions
diff --git a/src/Color.c b/src/Color.c
new file mode 100644
index 0000000..53af267
--- /dev/null
+++ b/src/Color.c
@@ -0,0 +1,90 @@
+/*
+ * $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;
+}