Fix audaspace mess in 2.8

All these files were removed since accidental commit, revert and merge in 2.8.

ea31f0ac3b877e + 0a4e170c28cec + 11f9a23a286c17f + 7b27b10fa6a6

1 files changed, 133 insertions, 0 deletions

diff --git a/extern/audaspace/include/fx/BaseIIRFilterReader.h b/extern/audaspace/include/fx/BaseIIRFilterReader.h
new file mode 100644
index 00000000000..193b98578de
--- /dev/null
+++ b/extern/audaspace/include/fx/BaseIIRFilterReader.h
@@ -0,0 +1,133 @@
+/*******************************************************************************
+ * 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 BaseIIRFilterReader.h
+ * @ingroup fx
+ * The BaseIIRFilterReader class.
+ */
+
+#include "fx/EffectReader.h"
+
+AUD_NAMESPACE_BEGIN
+
+/**
+ * This class is a base class for infinite impulse response filters.
+ */
+class AUD_API BaseIIRFilterReader : public EffectReader
+{
+private:
+	/**
+	 * Specs.
+	 */
+	Specs m_specs;
+
+	/**
+	 * Length of input samples needed.
+	 */
+	int m_xlen;
+
+	/**
+	 * Length of output samples needed.
+	 */
+	int m_ylen;
+
+	/**
+	 * The last in samples array.
+	 */
+	sample_t* m_x;
+
+	/**
+	 * The last out samples array.
+	 */
+	sample_t* m_y;
+
+	/**
+	 * Position of the current input sample in the input array.
+	 */
+	int m_xpos;
+
+	/**
+	 * Position of the current output sample in the output array.
+	 */
+	int m_ypos;
+
+	/**
+	 * Current channel.
+	 */
+	int m_channel;
+
+	// delete copy constructor and operator=
+	BaseIIRFilterReader(const BaseIIRFilterReader&) = delete;
+	BaseIIRFilterReader& operator=(const BaseIIRFilterReader&) = delete;
+
+protected:
+	/**
+	 * Creates a new base IIR filter reader.
+	 * \param reader The reader to read from.
+	 * \param in The count of past input samples needed.
+	 * \param out The count of past output samples needed.
+	 */
+	BaseIIRFilterReader(std::shared_ptr<IReader> reader, int in, int out);
+
+	/**
+	 * Sets the length for the required input and output samples of the IIR filter.
+	 * @param in The amount of past input samples needed, including the current one.
+	 * @param out The amount of past output samples needed.
+	 */
+	void setLengths(int in, int out);
+
+public:
+	/**
+	 * Retrieves the last input samples.
+	 * \param pos The position, valid are 0 (current) or negative values.
+	 * \return The sample value.
+	 */
+	inline sample_t x(int pos)
+	{
+		return m_x[(m_xpos + pos + m_xlen) % m_xlen * m_specs.channels + m_channel];
+	}
+
+	/**
+	 * Retrieves the last output samples.
+	 * \param pos The position, valid are negative values.
+	 * \return The sample value.
+	 */
+	inline sample_t y(int pos)
+	{
+		return m_y[(m_ypos + pos + m_ylen) % m_ylen * m_specs.channels + m_channel];
+	}
+
+	virtual ~BaseIIRFilterReader();
+
+	virtual void read(int& length, bool& eos, sample_t* buffer);
+
+	/**
+	 * Runs the filtering function.
+	 * \return The current output sample value.
+	 */
+	virtual sample_t filter()=0;
+
+	/**
+	 * Notifies the filter about a sample rate change.
+	 * \param rate The new sample rate.
+	 */
+	virtual void sampleRateChanged(SampleRate rate);
+};
+
+AUD_NAMESPACE_END