Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/audaspace/include/util/Buffer.h

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+/*******************************************************************************
+ * Copyright 2009-2016 Jörg Müller
+ *
+ * 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.
+ ******************************************************************************/
+
+#pragma once
+
+/**
+ * @file Buffer.h
+ * @ingroup util
+ * The Buffer class.
+ */
+
+#include "Audaspace.h"
+
+AUD_NAMESPACE_BEGIN
+
+/**
+ * This class is a simple buffer in RAM which is 32 Byte aligned and provides
+ * resize functionality.
+ */
+class AUD_API Buffer
+{
+private:
+	/// The size of the buffer in bytes.
+	long long m_size;
+
+	/// The pointer to the buffer memory.
+	data_t* m_buffer;
+
+	// delete copy constructor and operator=
+	Buffer(const Buffer&) = delete;
+	Buffer& operator=(const Buffer&) = delete;
+
+public:
+	/**
+	 * Creates a new buffer.
+	 * \param size The size of the buffer in bytes.
+	 */
+	Buffer(long long size = 0);
+
+	/**
+	 * Destroys the buffer.
+	 */
+	~Buffer();
+
+	/**
+	 * Returns the pointer to the buffer in memory.
+	 */
+	const sample_t* getBuffer() const;
+
+	/**
+	 * Returns the pointer to the buffer in memory.
+	 */
+	sample_t* getBuffer();
+
+	/**
+	 * Returns the size of the buffer in bytes.
+	 */
+	long long getSize() const;
+
+	/**
+	 * Resizes the buffer.
+	 * \param size The new size of the buffer, measured in bytes.
+	 * \param keep Whether to keep the old data. If the new buffer is smaller,
+	 *        the data at the end will be lost.
+	 */
+	void resize(long long size, bool keep = false);
+
+	/**
+	 * Makes sure the buffer has a minimum size.
+	 * If size is >= current size, nothing will happen.
+	 * Otherwise the buffer is resized with keep as parameter.
+	 * \param size The new minimum size of the buffer, measured in bytes.
+	 * \param keep Whether to keep the old data. If the new buffer is smaller,
+	 *        the data at the end will be lost.
+	 */
+	void assureSize(long long size, bool keep = false);
+};
+
+AUD_NAMESPACE_END