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Diffstat (limited to 'libFDK/include/fixmadd.h')
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diff --git a/libFDK/include/fixmadd.h b/libFDK/include/fixmadd.h new file mode 100644 index 0000000..71413ee --- /dev/null +++ b/libFDK/include/fixmadd.h @@ -0,0 +1,306 @@ + +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. + All rights reserved. + + 1. INTRODUCTION +The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements +the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. +This FDK AAC Codec software is intended to be used on a wide variety of Android devices. + +AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual +audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by +independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part +of the MPEG specifications. + +Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) +may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners +individually for the purpose of encoding or decoding bit streams in products that are compliant with +the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license +these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec +software may already be covered under those patent licenses when it is used for those licensed purposes only. + +Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, +are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional +applications information and documentation. + +2. COPYRIGHT LICENSE + +Redistribution and use in source and binary forms, with or without modification, are permitted without +payment of copyright license fees provided that you satisfy the following conditions: + +You must retain the complete text of this software license in redistributions of the FDK AAC Codec or +your modifications thereto in source code form. + +You must retain the complete text of this software license in the documentation and/or other materials +provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. +You must make available free of charge copies of the complete source code of the FDK AAC Codec and your +modifications thereto to recipients of copies in binary form. + +The name of Fraunhofer may not be used to endorse or promote products derived from this library without +prior written permission. + +You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec +software or your modifications thereto. + +Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software +and the date of any change. For modified versions of the FDK AAC Codec, the term +"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term +"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." + +3. NO PATENT LICENSE + +NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, +ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with +respect to this software. + +You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized +by appropriate patent licenses. + +4. DISCLAIMER + +This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors +"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties +of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR +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), arising in any way out of the use of this software, even if +advised of the possibility of such damage. + +5. CONTACT INFORMATION + +Fraunhofer Institute for Integrated Circuits IIS +Attention: Audio and Multimedia Departments - FDK AAC LL +Am Wolfsmantel 33 +91058 Erlangen, Germany + +www.iis.fraunhofer.de/amm +amm-info@iis.fraunhofer.de +----------------------------------------------------------------------------------------------------------- */ + +/*************************** Fraunhofer IIS FDK Tools ********************** + + Author(s): M. Lohwasser, M. Gayer + Description: fixed point intrinsics + +******************************************************************************/ + +#if !defined(__FIXMADD_H__) +#define __FIXMADD_H__ + +#include "FDK_archdef.h" +#include "machine_type.h" +#include "fixmul.h" + +#if defined(__arm__) +#include "arm/fixmadd_arm.h" + +#elif defined(__mips__) /* cppp replaced: elif */ +#include "mips/fixmadd_mips.h" + +#endif /* all cores */ + +/************************************************************************* + ************************************************************************* + Software fallbacks for missing functions. +************************************************************************** +**************************************************************************/ + +/* Divide by two versions. */ + +#if !defined(FUNCTION_fixmadddiv2_DD) +inline FIXP_DBL fixmadddiv2_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) + { return (x + fMultDiv2 (a, b)); } +#endif + +#if !defined(FUNCTION_fixmadddiv2_SD) +inline FIXP_DBL fixmadddiv2_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { +#ifdef FUNCTION_fixmadddiv2_DS + return fixmadddiv2_DS(x, b, a); +#else + return fixmadddiv2_DD(x, FX_SGL2FX_DBL(a), b); +#endif +} +#endif + +#if !defined(FUNCTION_fixmadddiv2_DS) +inline FIXP_DBL fixmadddiv2_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { +#ifdef FUNCTION_fixmadddiv2_SD + return fixmadddiv2_SD(x, b, a); +#else + return fixmadddiv2_DD(x, a, FX_SGL2FX_DBL(b)); +#endif +} +#endif + +#if !defined(FUNCTION_fixmadddiv2_SS) +inline FIXP_DBL fixmadddiv2_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) + { return x + fMultDiv2(a,b); } +#endif + +#if !defined(FUNCTION_fixmsubdiv2_DD) +inline FIXP_DBL fixmsubdiv2_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) + { return (x - fMultDiv2 (a, b)); } +#endif + +#if !defined(FUNCTION_fixmsubdiv2_SD) +inline FIXP_DBL fixmsubdiv2_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { +#ifdef FUNCTION_fixmsubdiv2_DS + return fixmsubdiv2_DS(x, b, a); +#else + return fixmsubdiv2_DD(x, FX_SGL2FX_DBL(a), b); +#endif +} +#endif + +#if !defined(FUNCTION_fixmsubdiv2_DS) +inline FIXP_DBL fixmsubdiv2_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { +#ifdef FUNCTION_fixmsubdiv2_SD + return fixmsubdiv2_SD(x, b, a); +#else + return fixmsubdiv2_DD(x, a, FX_SGL2FX_DBL(b)); +#endif +} +#endif + +#if !defined(FUNCTION_fixmsubdiv2_SS) +inline FIXP_DBL fixmsubdiv2_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) + { return x - fMultDiv2(a,b); } +#endif + + +#if !defined(FUNCTION_fixmadddiv2BitExact_DD) +#define FUNCTION_fixmadddiv2BitExact_DD +inline FIXP_DBL fixmadddiv2BitExact_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) { + return x + fMultDiv2BitExact(a, b); +} +#endif +#if !defined(FUNCTION_fixmadddiv2BitExact_SD) +#define FUNCTION_fixmadddiv2BitExact_SD +inline FIXP_DBL fixmadddiv2BitExact_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { +#ifdef FUNCTION_fixmadddiv2BitExact_DS + return fixmadddiv2BitExact_DS(x, b, a); +#else + return x + fMultDiv2BitExact(a, b); +#endif +} +#endif +#if !defined(FUNCTION_fixmadddiv2BitExact_DS) +#define FUNCTION_fixmadddiv2BitExact_DS +inline FIXP_DBL fixmadddiv2BitExact_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { +#ifdef FUNCTION_fixmadddiv2BitExact_SD + return fixmadddiv2BitExact_SD(x, b, a); +#else + return x + fMultDiv2BitExact(a, b); +#endif +} +#endif + +#if !defined(FUNCTION_fixmsubdiv2BitExact_DD) +#define FUNCTION_fixmsubdiv2BitExact_DD +inline FIXP_DBL fixmsubdiv2BitExact_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) { + return x - fMultDiv2BitExact(a, b); +} +#endif +#if !defined(FUNCTION_fixmsubdiv2BitExact_SD) +#define FUNCTION_fixmsubdiv2BitExact_SD +inline FIXP_DBL fixmsubdiv2BitExact_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { +#ifdef FUNCTION_fixmsubdiv2BitExact_DS + return fixmsubdiv2BitExact_DS(x, b, a); +#else + return x - fMultDiv2BitExact(a, b); +#endif +} +#endif +#if !defined(FUNCTION_fixmsubdiv2BitExact_DS) +#define FUNCTION_fixmsubdiv2BitExact_DS +inline FIXP_DBL fixmsubdiv2BitExact_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { +#ifdef FUNCTION_fixmsubdiv2BitExact_SD + return fixmsubdiv2BitExact_SD(x, b, a); +#else + return x - fMultDiv2BitExact(a, b); +#endif +} +#endif + +/* Normal versions */ + +#if !defined(FUNCTION_fixmadd_DD) +inline FIXP_DBL fixmadd_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) + { return fixmadddiv2_DD(x,a,b)<<1; } +#endif +#if !defined(FUNCTION_fixmadd_SD) +inline FIXP_DBL fixmadd_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { +#ifdef FUNCTION_fixmadd_DS + return fixmadd_DS(x, b, a); +#else + return fixmadd_DD(x, FX_SGL2FX_DBL(a), b); +#endif +} +#endif +#if !defined(FUNCTION_fixmadd_DS) +inline FIXP_DBL fixmadd_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { +#ifdef FUNCTION_fixmadd_SD + return fixmadd_SD(x, b, a); +#else + return fixmadd_DD(x, a, FX_SGL2FX_DBL(b)); +#endif +} +#endif +#if !defined(FUNCTION_fixmadd_SS) +inline FIXP_DBL fixmadd_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) + { return (x + fMultDiv2(a,b))<<1; } +#endif + +#if !defined(FUNCTION_fixmsub_DD) +inline FIXP_DBL fixmsub_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) + { return fixmsubdiv2_DD(x,a,b)<<1; } +#endif +#if !defined(FUNCTION_fixmsub_SD) +inline FIXP_DBL fixmsub_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { +#ifdef FUNCTION_fixmsub_DS + return fixmsub_DS(x, b, a); +#else + return fixmsub_DD(x, FX_SGL2FX_DBL(a), b); +#endif +} +#endif +#if !defined(FUNCTION_fixmsub_DS) +inline FIXP_DBL fixmsub_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { +#ifdef FUNCTION_fixmsub_SD + return fixmsub_SD(x, b, a); +#else + return fixmsub_DD(x, a, FX_SGL2FX_DBL(b)); +#endif +} +#endif +#if !defined(FUNCTION_fixmsub_SS) +inline FIXP_DBL fixmsub_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) + { return (x - fMultDiv2(a,b))<<1; } +#endif + +#if !defined(FUNCTION_fixpow2adddiv2_D) +inline INT fixpadddiv2_D (FIXP_DBL x, const FIXP_DBL a) + { return (x + fPow2Div2(a)); } +#endif +#if !defined(FUNCTION_fixpow2add_D) +inline INT fixpadd_D (FIXP_DBL x, const FIXP_DBL a) + { return (x + fPow2(a)); } +#endif + +#if !defined(FUNCTION_fixpow2adddiv2_S) +inline INT fixpadddiv2_S (FIXP_DBL x, const FIXP_SGL a) + { return (x + fPow2Div2(a)); } +#endif +#if !defined(FUNCTION_fixpow2add_S) +inline INT fixpadd_S (FIXP_DBL x, const FIXP_SGL a) + { return (x + fPow2(a)); } +#endif + + + +#endif // __FIXMADD_H__ + |