Move SkBase64 to utils, allow user defined encoding.

git-svn-id: http://skia.googlecode.com/svn/trunk@3148 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 44 insertions, 0 deletions

diff --git a/src/utils/SkBase64.h b/src/utils/SkBase64.h
new file mode 100644
index 0000000000..4f3b3234f1
--- /dev/null
+++ b/src/utils/SkBase64.h
@@ -0,0 +1,44 @@
+
+/*
+ * Copyright 2006 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#ifndef SkBase64_DEFINED
+#define SkBase64_DEFINED
+
+#include "SkTypes.h"
+
+struct SkBase64 {
+public:
+    enum Error {
+        kNoError,
+        kPadError,
+        kBadCharError
+    };
+
+    SkBase64();
+    Error decode(const char* src, size_t length);
+    char* getData() { return fData; }
+    /**
+       Base64 encodes src into dst. encode is a pointer to at least 65 chars.
+       encode[64] will be used as the pad character. Encodings other than the
+       default encoding cannot be decoded.
+    */
+    static size_t Encode(const void* src, size_t length, void* dest, const char* encode = NULL);
+
+#ifdef SK_SUPPORT_UNITTEST
+    static void UnitTest();
+#endif
+private:
+    Error decode(const void* srcPtr, size_t length, bool writeDestination);
+
+    size_t fLength;
+    char* fData;
+    friend class SkImage;
+};
+
+#endif // SkBase64_DEFINED