mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-03-09 23:40:42 +00:00
a745fc3757
added libraries: opus flac libsndfile updated: libvorbis libogg openal - Everything works as expected for now. Bare in mind libsndfile needed the check for whether or not it could find the xiph libraries removed in order for this to work.
81 lines
3.7 KiB
C
81 lines
3.7 KiB
C
/*
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* Copyright (c) 2011 Apple Inc. All rights reserved.
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* Copyright (C) 2012-2014 Erik de Castro Lopo <erikd@mega-nerd.com>
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*
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* @APPLE_APACHE_LICENSE_HEADER_START@
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*
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* Licensed under the Apache License, Version 2.0 (the "License") ;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @APPLE_APACHE_LICENSE_HEADER_END@
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*/
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/*
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File: matrixlib.h
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Contains: ALAC mixing/matrixing routines to/from 32-bit predictor buffers.
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Copyright: Copyright (C) 2004 to 2011 Apple, Inc.
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*/
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#ifndef __MATRIXLIB_H
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#define __MATRIXLIB_H
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#pragma once
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// 16-bit routines
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void mix16 (const int32_t * in, uint32_t stride, int32_t * u, int32_t * v, int32_t numSamples, int32_t mixbits, int32_t mixres) ;
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void unmix16 (const int32_t * u, int32_t * v, int32_t * out, uint32_t stride, int32_t numSamples, int32_t mixbits, int32_t mixres) ;
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// 20-bit routines
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void mix20 (const int32_t * in, uint32_t stride, int32_t * u, int32_t * v, int32_t numSamples, int32_t mixbits, int32_t mixres) ;
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void unmix20 (const int32_t * u, int32_t * v, int32_t * out, uint32_t stride, int32_t numSamples, int32_t mixbits, int32_t mixres) ;
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// 24-bit routines
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// - 24-bit data sometimes compresses better by shifting off the bottom byte so these routines deal with
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// the specified "unused lower bytes" in the combined "shift" buffer
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void mix24 (const int32_t * in, uint32_t stride, int32_t * u, int32_t * v, int32_t numSamples,
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int32_t mixbits, int32_t mixres, uint16_t * shiftUV, int32_t bytesShifted) ;
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void unmix24 (const int32_t * u, int32_t * v, int32_t * out, uint32_t stride, int32_t numSamples,
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int32_t mixbits, int32_t mixres, uint16_t * shiftUV, int32_t bytesShifted) ;
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// 32-bit routines
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// - note that these really expect the internal data width to be < 32-bit but the arrays are 32-bit
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// - otherwise, the calculations might overflow into the 33rd bit and be lost
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// - therefore, these routines deal with the specified "unused lower" bytes in the combined "shift" buffer
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void mix32 (const int32_t * in, uint32_t stride, int32_t * u, int32_t * v, int32_t numSamples,
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int32_t mixbits, int32_t mixres, uint16_t * shiftUV, int32_t bytesShifted) ;
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void unmix32 (const int32_t * u, int32_t * v, int32_t * out, uint32_t stride, int32_t numSamples,
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int32_t mixbits, int32_t mixres, uint16_t * shiftUV, int32_t bytesShifted) ;
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// 20/24/32-bit <-> 32-bit helper routines (not really matrixing but convenient to put here)
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void copy20ToPredictor (const int32_t * in, uint32_t stride, int32_t * out, int32_t numSamples) ;
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void copy24ToPredictor (const int32_t * in, uint32_t stride, int32_t * out, int32_t numSamples) ;
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void copyPredictorTo24 (const int32_t * in, int32_t * out, uint32_t stride, int32_t numSamples) ;
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void copyPredictorTo24Shift (const int32_t * in, uint16_t * shift, int32_t * out, uint32_t stride, int32_t numSamples, int32_t bytesShifted) ;
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void copyPredictorTo20 (const int32_t * in, int32_t * out, uint32_t stride, int32_t numSamples) ;
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void copyPredictorTo32 (const int32_t * in, int32_t * out, uint32_t stride, int32_t numSamples) ;
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void copyPredictorTo32Shift (const int32_t * in, uint16_t * shift, int32_t * out, uint32_t stride, int32_t numSamples, int32_t bytesShifted) ;
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#ifdef __cplusplus
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}
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#endif
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#endif /* __MATRIXLIB_H */
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