1 files changed, 71 insertions, 0 deletions
diff --git a/Source/WebCore/platform/audio/AudioArray.h b/Source/WebCore/platform/audio/AudioArray.h
new file mode 100644
index 0000000..9c25b0f
--- /dev/null
+++ b/Source/WebCore/platform/audio/AudioArray.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef AudioArray_h
+#define AudioArray_h
+
+#include <string.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+template<typename T>
+class AudioArray : public Vector<T> {
+public:
+    AudioArray() : Vector<T>(0) { }
+    explicit AudioArray(size_t n) : Vector<T>(n, 0) { }
+
+    void zero() { memset(this->data(), 0, sizeof(T) * this->size()); }
+
+    void zeroRange(unsigned start, unsigned end)
+    {
+        bool isSafe = (start <= end) && (end <= this->size());
+        ASSERT(isSafe);
+        if (!isSafe)
+            return;
+
+        memset(this->data() + start, 0, sizeof(T) * (end - start));
+    }
+
+    void copyToRange(T* sourceData, unsigned start, unsigned end)
+    {
+        bool isSafe = (start <= end) && (end <= this->size());
+        ASSERT(isSafe);
+        if (!isSafe)
+            return;
+
+        memcpy(this->data() + start, sourceData, sizeof(T) * (end - start));
+    }
+};
+
+typedef AudioArray<float> AudioFloatArray;
+typedef AudioArray<double> AudioDoubleArray;
+
+} // WebCore
+
+#endif // AudioArray_h