1464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com/* 2464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * Copyright 2011 Google Inc. All Rights Reserved. 3464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * 4464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * Licensed under the Apache License, Version 2.0 (the "License"); 5464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * you may not use this file except in compliance with the License. 6464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * You may obtain a copy of the License at 7464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * 8464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * http://www.apache.org/licenses/LICENSE-2.0 9464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * 10464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * Unless required by applicable law or agreed to in writing, software 11464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * distributed under the License is distributed on an "AS IS" BASIS, 12464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * See the License for the specific language governing permissions and 14464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com * limitations under the License. 15464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com */ 16464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 175af34fd773f8cfee82321393504f558ddf67c628arthurhsu@google.com#ifndef SFNTLY_CPP_SRC_SFNTLY_DATA_MEMORY_BYTE_ARRAY_H_ 185af34fd773f8cfee82321393504f558ddf67c628arthurhsu@google.com#define SFNTLY_CPP_SRC_SFNTLY_DATA_MEMORY_BYTE_ARRAY_H_ 19464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 20464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com#include "sfntly/data/byte_array.h" 21464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 22464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.comnamespace sfntly { 23464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 24464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.comclass MemoryByteArray : public ByteArray, public RefCounted<MemoryByteArray> { 25464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com public: 2632a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // Construct a new MemoryByteArray with a new array of the size given. It is 2732a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // assumed that none of the array is filled and readable. 28464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com explicit MemoryByteArray(int32_t length); 2932a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com 3032a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // Note: not implemented due to dangerous operations in constructor. 3132a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com //explicit MemoryByteArray(ByteVector* b); 3232a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com 3332a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // Construct a new MemoryByteArray using byte array. 3432a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // @param b the byte array that provides the actual storage 3532a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // @param filled_length the index of the last byte in the array has data 3632a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // Note: This is different from Java version, it does not take over the 3732a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // ownership of b. Caller is responsible for handling the lifetime 3832a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // of b. C++ port also assumes filled_length is buffer_length since 3932a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // there is not a reliable way to identify the actual size of buffer. 4032a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com MemoryByteArray(byte_t* b, int32_t filled_length); 4132a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com 42464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com virtual ~MemoryByteArray(); 4332a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com virtual int32_t CopyTo(OutputStream* os, int32_t offset, int32_t length); 4432a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com 4532a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com // Make gcc -Woverloaded-virtual happy. 4632a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com virtual int32_t CopyTo(ByteArray* array) { return ByteArray::CopyTo(array); } 4732a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com virtual int32_t CopyTo(ByteArray* array, int32_t offset, int32_t length) { 4832a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com return ByteArray::CopyTo(array, offset, length); 4932a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com } 5032a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com virtual int32_t CopyTo(int32_t dst_offset, 5132a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com ByteArray* array, 5232a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com int32_t src_offset, 5332a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com int32_t length) { 5432a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com return ByteArray::CopyTo(dst_offset, array, src_offset, length); 5532a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com } 5632a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com virtual int32_t CopyTo(OutputStream* os) { return ByteArray::CopyTo(os); } 57464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 58464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com protected: 5932a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com virtual void InternalPut(int32_t index, byte_t b); 60246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com virtual int32_t InternalPut(int32_t index, 6132a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com byte_t* b, 62246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com int32_t offset, 63464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com int32_t length); 64246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com virtual byte_t InternalGet(int32_t index); 65246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com virtual int32_t InternalGet(int32_t index, 6632a01c7c6e7be46dda9bfc78de9ce32d99e4c8b7arthurhsu@google.com byte_t* b, 67246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com int32_t offset, 68464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com int32_t length); 69246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com virtual void Close(); 70246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com virtual byte_t* Begin(); 71464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 72464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com private: 73246300f7fab1f2539c3207ce5ec28cc355465be8arthurhsu@google.com void Init(); // C++ port only, used to allocate memory outside constructor. 74464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 75464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com byte_t* b_; 76464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com bool allocated_; 77464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com}; 78464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 79464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com} // namespace sfntly 80464987db923362e596195f9eebd34fc508c9a41arthurhsu@google.com 815af34fd773f8cfee82321393504f558ddf67c628arthurhsu@google.com#endif // SFNTLY_CPP_SRC_SFNTLY_DATA_MEMORY_BYTE_ARRAY_H_ 82