| /* |
| * Copyright 2011 Google Inc. All Rights Reserved. |
| * |
| * 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. |
| */ |
| |
| #ifndef SFNTLY_CPP_SRC_SFNTLY_DATA_MEMORY_BYTE_ARRAY_H_ |
| #define SFNTLY_CPP_SRC_SFNTLY_DATA_MEMORY_BYTE_ARRAY_H_ |
| |
| #include "sfntly/data/byte_array.h" |
| |
| namespace sfntly { |
| |
| class MemoryByteArray : public ByteArray, public RefCounted<MemoryByteArray> { |
| public: |
| // Construct a new MemoryByteArray with a new array of the size given. It is |
| // assumed that none of the array is filled and readable. |
| explicit MemoryByteArray(int32_t length); |
| |
| // Note: not implemented due to dangerous operations in constructor. |
| //explicit MemoryByteArray(ByteVector* b); |
| |
| // Construct a new MemoryByteArray using byte array. |
| // @param b the byte array that provides the actual storage |
| // @param filled_length the index of the last byte in the array has data |
| // Note: This is different from Java version, it does not take over the |
| // ownership of b. Caller is responsible for handling the lifetime |
| // of b. C++ port also assumes filled_length is buffer_length since |
| // there is not a reliable way to identify the actual size of buffer. |
| MemoryByteArray(byte_t* b, int32_t filled_length); |
| |
| virtual ~MemoryByteArray(); |
| virtual int32_t CopyTo(OutputStream* os, int32_t offset, int32_t length); |
| |
| // Make gcc -Woverloaded-virtual happy. |
| virtual int32_t CopyTo(ByteArray* array) { return ByteArray::CopyTo(array); } |
| virtual int32_t CopyTo(ByteArray* array, int32_t offset, int32_t length) { |
| return ByteArray::CopyTo(array, offset, length); |
| } |
| virtual int32_t CopyTo(int32_t dst_offset, |
| ByteArray* array, |
| int32_t src_offset, |
| int32_t length) { |
| return ByteArray::CopyTo(dst_offset, array, src_offset, length); |
| } |
| virtual int32_t CopyTo(OutputStream* os) { return ByteArray::CopyTo(os); } |
| |
| protected: |
| virtual void InternalPut(int32_t index, byte_t b); |
| virtual int32_t InternalPut(int32_t index, |
| byte_t* b, |
| int32_t offset, |
| int32_t length); |
| virtual byte_t InternalGet(int32_t index); |
| virtual int32_t InternalGet(int32_t index, |
| byte_t* b, |
| int32_t offset, |
| int32_t length); |
| virtual void Close(); |
| virtual byte_t* Begin(); |
| |
| private: |
| void Init(); // C++ port only, used to allocate memory outside constructor. |
| |
| byte_t* b_; |
| bool allocated_; |
| }; |
| |
| } // namespace sfntly |
| |
| #endif // SFNTLY_CPP_SRC_SFNTLY_DATA_MEMORY_BYTE_ARRAY_H_ |