[lcd4linux @ 2006-01-30 05:47:34 by reinelt]

graphic subsystem changed to full-color RGBA

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@626 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

1 files changed, 66 insertions, 0 deletions

diff --git a/rgb.c b/rgb.c
new file mode 100644
index 0000000..452a6ea
--- /dev/null
+++ b/rgb.c
@@ -0,0 +1,66 @@
+/* $Id: rgb.c,v 1.1 2006/01/30 05:47:38 reinelt Exp $
+ *
+ * generic color handling
+ *
+ * Copyright (C) 2005 Michael Reinelt <reinelt@eunet.at>
+ * Copyright (C) 2005 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * LCD4Linux is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * $Log: rgb.c,v $
+ * Revision 1.1  2006/01/30 05:47:38  reinelt
+ * graphic subsystem changed to full-color RGBA
+ *
+ */
+
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "rgb.h"
+
+
+int color2RGBA(const char *color, RGBA * C)
+{
+    char *e;
+    unsigned long l;
+
+    if (color == NULL || *color == '\0') {
+	return -1;
+    }
+
+    l = strtoul(color, &e, 16);
+    if (e != NULL && *e != '\0') {
+	return -1;
+    }
+
+    if (strlen(color) == 8) {
+	/* RGBA */
+	C->R = (l >> 24) & 0xff;
+	C->G = (l >> 16) & 0xff;
+	C->B = (l >> 8) & 0xff;
+	C->A = (l >> 0) & 0xff;
+    } else {
+	/* RGB */
+	C->R = (l >> 16) & 0xff;
+	C->G = (l >> 8) & 0xff;
+	C->B = l & 0xff;
+	C->A = 0xff;
+    }
+    return 0;
+}