/* * 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.
*/
Normally this is called once with 'dst' nullptr to get the required size, then again with an allocated 'dst' pointer to do the actual encoding.
@param dst nullptr or a pointer to a buffer large enough to receive the result
@param encode nullptr for default encoding or 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.
@return the required length of dst for encoding.
*/ static size_t Encode(constvoid* src, size_t length, void* dst, constchar* encode = nullptr);
/** Returns the length of the buffer that needs to be allocated to encode srcDataLength bytes.
*/ static size_t EncodedSize(size_t srcDataLength) { // Take the floor of division by 3 to find the number of groups that need to be encoded. // Each group takes 4 bytes to be represented in base64. return ((srcDataLength + 2) / 3) * 4;
}
/** Base64 decodes src into dst.
Normally this is called once with 'dst' nullptr to get the required size, then again with an allocated 'dst' pointer to do the actual encoding.
@param dst nullptr or a pointer to a buffer large enough to receive the result
@param dstLength assigned the length dst is required to be. Must not be nullptr.
*/
[[nodiscard]] static Error Decode(constvoid* src, size_t srcLength, void* dst, size_t* dstLength);
};
#endif// SkBase64_DEFINED
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