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Diffstat (limited to 'extern/audaspace/include/util/Buffer.h')
-rw-r--r-- | extern/audaspace/include/util/Buffer.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/extern/audaspace/include/util/Buffer.h b/extern/audaspace/include/util/Buffer.h new file mode 100644 index 00000000000..9934e53625e --- /dev/null +++ b/extern/audaspace/include/util/Buffer.h @@ -0,0 +1,87 @@ +/******************************************************************************* + * 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. + int 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(int size = 0); + + /** + * Destroys the buffer. + */ + ~Buffer(); + + /** + * Returns the pointer to the buffer in memory. + */ + sample_t* getBuffer() const; + + /** + * Returns the size of the buffer in bytes. + */ + int 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(int 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(int size, bool keep = false); +}; + +AUD_NAMESPACE_END |