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Side by Side Diff: Source/core/platform/audio/AudioArray.h

Issue 13973026: remove memoryinstrumentation Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: remove the rest part of MemoryInstrumentation Created 7 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2010 Google Inc. All rights reserved. 2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 7 *
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
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135 bool isSafe = (start <= end) && (end <= this->size()); 135 bool isSafe = (start <= end) && (end <= this->size());
136 ASSERT(isSafe); 136 ASSERT(isSafe);
137 if (!isSafe) 137 if (!isSafe)
138 return; 138 return;
139 139
140 // This expression cannot overflow because end - start cannot be 140 // This expression cannot overflow because end - start cannot be
141 // greater than m_size, which is safe due to the check in allocate(). 141 // greater than m_size, which is safe due to the check in allocate().
142 memcpy(this->data() + start, sourceData, sizeof(T) * (end - start)); 142 memcpy(this->data() + start, sourceData, sizeof(T) * (end - start));
143 } 143 }
144 144
145 template<typename MemoryObjectInfo>
146 void reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
147 {
148 typename MemoryObjectInfo::ClassInfo info(memoryObjectInfo, this);
149 info.addRawBuffer(m_allocation, m_size * sizeof(T), "AudioArrayData", "a llocation");
150 info.ignoreMember(m_alignedData);
151 }
152
153 private: 145 private:
154 static T* alignedAddress(T* address, intptr_t alignment) 146 static T* alignedAddress(T* address, intptr_t alignment)
155 { 147 {
156 intptr_t value = reinterpret_cast<intptr_t>(address); 148 intptr_t value = reinterpret_cast<intptr_t>(address);
157 return reinterpret_cast<T*>((value + alignment - 1) & ~(alignment - 1)); 149 return reinterpret_cast<T*>((value + alignment - 1) & ~(alignment - 1));
158 } 150 }
159 151
160 T* m_allocation; 152 T* m_allocation;
161 T* m_alignedData; 153 T* m_alignedData;
162 size_t m_size; 154 size_t m_size;
163 }; 155 };
164 156
165 typedef AudioArray<float> AudioFloatArray; 157 typedef AudioArray<float> AudioFloatArray;
166 typedef AudioArray<double> AudioDoubleArray; 158 typedef AudioArray<double> AudioDoubleArray;
167 159
168 } // WebCore 160 } // WebCore
169 161
170 #endif // AudioArray_h 162 #endif // AudioArray_h
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