1 /* 2 * Copyright 2011 Google Inc. All Rights Reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "sfntly/data/growable_memory_byte_array.h" 18 19 #include <limits.h> 20 #include <string.h> 21 22 #include <algorithm> 23 24 namespace sfntly { 25 26 GrowableMemoryByteArray::GrowableMemoryByteArray() 27 : ByteArray(0, INT_MAX, true) { 28 // Note: We did not set an initial size of array like Java because STL 29 // implementation will determine the best strategy. 30 } 31 32 GrowableMemoryByteArray::~GrowableMemoryByteArray() {} 33 34 int32_t GrowableMemoryByteArray::CopyTo(OutputStream* os, 35 int32_t offset, 36 int32_t length) { 37 assert(os); 38 os->Write(&b_, offset, length); 39 return length; 40 } 41 42 void GrowableMemoryByteArray::InternalPut(int32_t index, byte_t b) { 43 if ((size_t)index >= b_.size()) { 44 b_.resize((size_t)(index + 1)); 45 } 46 b_[index] = b; 47 } 48 49 int32_t GrowableMemoryByteArray::InternalPut(int32_t index, 50 byte_t* b, 51 int32_t offset, 52 int32_t length) { 53 if ((size_t)index + length >= b_.size()) { 54 // Note: We grow one byte more than Java version. VC debuggers shows 55 // data better this way. 56 b_.resize((size_t)(index + length + 1)); 57 } 58 std::copy(b + offset, b + offset + length, b_.begin() + index); 59 return length; 60 } 61 62 byte_t GrowableMemoryByteArray::InternalGet(int32_t index) { 63 return b_[index]; 64 } 65 66 int32_t GrowableMemoryByteArray::InternalGet(int32_t index, 67 byte_t* b, 68 int32_t offset, 69 int32_t length) { 70 memcpy(b + offset, &(b_[0]) + index, length); 71 return length; 72 } 73 74 void GrowableMemoryByteArray::Close() { 75 b_.clear(); 76 } 77 78 byte_t* GrowableMemoryByteArray::Begin() { 79 return &(b_[0]); 80 } 81 82 } // namespace sfntly 83
