Initial Contribution
diff --git a/tools/rgb2565/to565.c b/tools/rgb2565/to565.c
new file mode 100644
index 0000000..01d14aa
--- /dev/null
+++ b/tools/rgb2565/to565.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#define to565(r,g,b) \
+ ((((r) >> 3) << 11) | (((g) >> 2) << 5) | ((b) >> 3))
+
+void to_565_raw(void)
+{
+ unsigned char in[3];
+ unsigned short out;
+
+ while(read(0, in, 3) == 3) {
+ out = to565(in[0],in[1],in[2]);
+ write(1, &out, 2);
+ }
+ return;
+}
+
+void to_565_rle(void)
+{
+ unsigned char in[3];
+ unsigned short last, color, count;
+ unsigned total = 0;
+ count = 0;
+
+ while(read(0, in, 3) == 3) {
+ color = to565(in[0],in[1],in[2]);
+ if (count) {
+ if ((color == last) && (count != 65535)) {
+ count++;
+ continue;
+ } else {
+ write(1, &count, 2);
+ write(1, &last, 2);
+ total += count;
+ }
+ }
+ last = color;
+ count = 1;
+ }
+ if (count) {
+ write(1, &count, 2);
+ write(1, &last, 2);
+ total += count;
+ }
+ fprintf(stderr,"%d pixels\n",total);
+}
+
+int main(int argc, char **argv)
+{
+ if ((argc > 1) && (!strcmp(argv[1],"-rle"))) {
+ to_565_rle();
+ } else {
+ to_565_raw();
+ }
+ return 0;
+}