Added initial OpenCL stub.

src/3rdparty/base32/base32.h

@@ -0,0 +1,68 @@
+// Base32 implementation
+//
+// Copyright 2010 Google Inc.
+// Author: Markus Gutschke
+//
+// 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.
+//
+// Encode and decode from base32 encoding using the following alphabet:
+//   ABCDEFGHIJKLMNOPQRSTUVWXYZ234567
+// This alphabet is documented in RFC 4648/3548
+//
+// We allow white-space and hyphens, but all other characters are considered
+// invalid.
+//
+// All functions return the number of output bytes or -1 on error. If the
+// output buffer is too small, the result will silently be truncated.
+
+#ifndef _BASE32_H_
+#define _BASE32_H_
+
+
+#include <stdint.h>
+
+
+int base32_encode(const uint8_t *data, int length, uint8_t *result, int bufSize) {
+  if (length < 0 || length > (1 << 28)) {
+    return -1;
+  }
+  int count = 0;
+  if (length > 0) {
+    int buffer = data[0];
+    int next = 1;
+    int bitsLeft = 8;
+    while (count < bufSize && (bitsLeft > 0 || next < length)) {
+      if (bitsLeft < 5) {
+        if (next < length) {
+          buffer <<= 8;
+          buffer |= data[next++] & 0xFF;
+          bitsLeft += 8;
+        } else {
+          int pad = 5 - bitsLeft;
+          buffer <<= pad;
+          bitsLeft += pad;
+        }
+      }
+      int index = 0x1F & (buffer >> (bitsLeft - 5));
+      bitsLeft -= 5;
+      result[count++] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"[index];
+    }
+  }
+  if (count < bufSize) {
+    result[count] = '\000';
+  }
+  return count;
+}
+
+
+#endif /* _BASE32_H_ */