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Add OPUS audio codec support
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‎.gitignore‎

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**/.gradle
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.idea
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*.iml
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*.bat
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**/msvc/Debug*
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**/msvc/Release*
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**/msvc/.vs
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**/msvc/*.db
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**/msvc/*.opendb
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**/msvc/*.sdf
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**/msvc/*.opensdf
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**/msvc/*.user
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**/msvc/*.suo
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**/msvc/*.db
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**/msvc/*.opendb
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**/msvc/*.aps
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**/msvc/ipch
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**/PublishPath*.txt

‎dep/opus/build.gradle‎

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import org.doomedsociety.gradlecpp.cfg.ToolchainConfig
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import org.doomedsociety.gradlecpp.cfg.ToolchainConfigUtils
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import org.doomedsociety.gradlecpp.msvc.MsvcToolchainConfig
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import org.doomedsociety.gradlecpp.gcc.GccToolchainConfig
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import org.doomedsociety.gradlecpp.toolchain.icc.Icc
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import org.doomedsociety.gradlecpp.toolchain.icc.IccCompilerPlugin
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import org.gradle.nativeplatform.NativeBinarySpec
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import org.gradle.nativeplatform.NativeLibrarySpec
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import org.gradle.nativeplatform.toolchain.VisualCpp
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apply plugin: 'cpp'
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apply plugin: IccCompilerPlugin
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void setupToolchain(NativeBinarySpec b) {
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ToolchainConfig cfg = rootProject.createToolchainConfig(b)
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cfg.projectInclude(project, '', '/src', '/include', '/celt', '/celt/x86', '/silk', '/silk/float')
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cfg.singleDefines('OPUS_BUILD', 'USE_ALLOCA');
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if (cfg instanceof MsvcToolchainConfig) {
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cfg.compilerOptions.args '/Ob2', '/Oi', '/GF', '/GR-'
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} else if (cfg instanceof GccToolchainConfig) {
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cfg.compilerOptions.languageStandard = 'c++0x'
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cfg.compilerOptions.args '-msse2', '-fp-model fast=2', '-fomit-frame-pointer', '-fvisibility=hidden', '-fvisibility-inlines-hidden', '-fno-rtti', '-g0', '-s'
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}
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ToolchainConfigUtils.apply(project, cfg, b)
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}
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model {
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buildTypes {
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debug
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release
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}
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platforms {
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x86 {
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architecture "x86"
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}
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}
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toolChains {
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visualCpp(VisualCpp) {
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}
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icc(Icc) {
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}
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}
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components {
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opus(NativeLibrarySpec) {
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targetPlatform 'x86'
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sources {
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opus_src(CppSourceSet) {
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source {
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srcDirs "src", "silk", "celt"
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include "**/*.c"
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}
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exportedHeaders {
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srcDirs "celt", "silk", "include"
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}
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}
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}
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binaries.all { NativeBinarySpec b ->
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project.setupToolchain(b)
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}
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}
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}
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}

‎dep/opus/celt/_kiss_fft_guts.h‎

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/*Copyright (c) 2003-2004, Mark Borgerding
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.*/
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#ifndef KISS_FFT_GUTS_H
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#define KISS_FFT_GUTS_H
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#define MIN(a,b) ((a)<(b) ? (a):(b))
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#define MAX(a,b) ((a)>(b) ? (a):(b))
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/* kiss_fft.h
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defines kiss_fft_scalar as either short or a float type
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and defines
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typedef struct { kiss_fft_scalar r; kiss_fft_scalar i; }kiss_fft_cpx; */
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#include "kiss_fft.h"
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/*
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Explanation of macros dealing with complex math:
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C_MUL(m,a,b) : m = a*b
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C_FIXDIV( c , div ) : if a fixed point impl., c /= div. noop otherwise
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C_SUB( res, a,b) : res = a - b
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C_SUBFROM( res , a) : res -= a
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C_ADDTO( res , a) : res += a
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* */
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#ifdef FIXED_POINT
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#include "arch.h"
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#define SAMP_MAX 2147483647
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#define TWID_MAX 32767
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#define TRIG_UPSCALE 1
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#define SAMP_MIN -SAMP_MAX
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# define S_MUL(a,b) MULT16_32_Q15(b, a)
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# define C_MUL(m,a,b) \
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do{ (m).r = SUB32(S_MUL((a).r,(b).r) , S_MUL((a).i,(b).i)); \
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(m).i = ADD32(S_MUL((a).r,(b).i) , S_MUL((a).i,(b).r)); }while(0)
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# define C_MULC(m,a,b) \
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do{ (m).r = ADD32(S_MUL((a).r,(b).r) , S_MUL((a).i,(b).i)); \
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(m).i = SUB32(S_MUL((a).i,(b).r) , S_MUL((a).r,(b).i)); }while(0)
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# define C_MULBYSCALAR( c, s ) \
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do{ (c).r = S_MUL( (c).r , s ) ;\
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(c).i = S_MUL( (c).i , s ) ; }while(0)
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# define DIVSCALAR(x,k) \
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(x) = S_MUL( x, (TWID_MAX-((k)>>1))/(k)+1 )
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# define C_FIXDIV(c,div) \
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do { DIVSCALAR( (c).r , div); \
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DIVSCALAR( (c).i , div); }while (0)
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#define C_ADD( res, a,b)\
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do {(res).r=ADD32((a).r,(b).r); (res).i=ADD32((a).i,(b).i); \
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}while(0)
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#define C_SUB( res, a,b)\
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do {(res).r=SUB32((a).r,(b).r); (res).i=SUB32((a).i,(b).i); \
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}while(0)
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#define C_ADDTO( res , a)\
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do {(res).r = ADD32((res).r, (a).r); (res).i = ADD32((res).i,(a).i);\
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}while(0)
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#define C_SUBFROM( res , a)\
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do {(res).r = ADD32((res).r,(a).r); (res).i = SUB32((res).i,(a).i); \
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}while(0)
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#if defined(OPUS_ARM_INLINE_ASM)
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#include "arm/kiss_fft_armv4.h"
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#endif
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#if defined(OPUS_ARM_INLINE_EDSP)
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#include "arm/kiss_fft_armv5e.h"
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#endif
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#if defined(MIPSr1_ASM)
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#include "mips/kiss_fft_mipsr1.h"
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#endif
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#else /* not FIXED_POINT*/
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# define S_MUL(a,b) ( (a)*(b) )
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#define C_MUL(m,a,b) \
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do{ (m).r = (a).r*(b).r - (a).i*(b).i;\
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(m).i = (a).r*(b).i + (a).i*(b).r; }while(0)
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#define C_MULC(m,a,b) \
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do{ (m).r = (a).r*(b).r + (a).i*(b).i;\
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(m).i = (a).i*(b).r - (a).r*(b).i; }while(0)
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#define C_MUL4(m,a,b) C_MUL(m,a,b)
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# define C_FIXDIV(c,div) /* NOOP */
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# define C_MULBYSCALAR( c, s ) \
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do{ (c).r *= (s);\
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(c).i *= (s); }while(0)
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#endif
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#ifndef CHECK_OVERFLOW_OP
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# define CHECK_OVERFLOW_OP(a,op,b) /* noop */
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#endif
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#ifndef C_ADD
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#define C_ADD( res, a,b)\
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do { \
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CHECK_OVERFLOW_OP((a).r,+,(b).r)\
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CHECK_OVERFLOW_OP((a).i,+,(b).i)\
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(res).r=(a).r+(b).r; (res).i=(a).i+(b).i; \
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}while(0)
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#define C_SUB( res, a,b)\
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do { \
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CHECK_OVERFLOW_OP((a).r,-,(b).r)\
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CHECK_OVERFLOW_OP((a).i,-,(b).i)\
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(res).r=(a).r-(b).r; (res).i=(a).i-(b).i; \
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}while(0)
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#define C_ADDTO( res , a)\
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do { \
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CHECK_OVERFLOW_OP((res).r,+,(a).r)\
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CHECK_OVERFLOW_OP((res).i,+,(a).i)\
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(res).r += (a).r; (res).i += (a).i;\
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}while(0)
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#define C_SUBFROM( res , a)\
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do {\
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CHECK_OVERFLOW_OP((res).r,-,(a).r)\
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CHECK_OVERFLOW_OP((res).i,-,(a).i)\
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(res).r -= (a).r; (res).i -= (a).i; \
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}while(0)
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#endif /* C_ADD defined */
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#ifdef FIXED_POINT
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/*# define KISS_FFT_COS(phase) TRIG_UPSCALE*floor(MIN(32767,MAX(-32767,.5+32768 * cos (phase))))
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# define KISS_FFT_SIN(phase) TRIG_UPSCALE*floor(MIN(32767,MAX(-32767,.5+32768 * sin (phase))))*/
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# define KISS_FFT_COS(phase) floor(.5+TWID_MAX*cos (phase))
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# define KISS_FFT_SIN(phase) floor(.5+TWID_MAX*sin (phase))
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# define HALF_OF(x) ((x)>>1)
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#elif defined(USE_SIMD)
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# define KISS_FFT_COS(phase) _mm_set1_ps( cos(phase) )
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# define KISS_FFT_SIN(phase) _mm_set1_ps( sin(phase) )
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# define HALF_OF(x) ((x)*_mm_set1_ps(.5f))
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#else
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# define KISS_FFT_COS(phase) (kiss_fft_scalar) cos(phase)
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# define KISS_FFT_SIN(phase) (kiss_fft_scalar) sin(phase)
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# define HALF_OF(x) ((x)*.5f)
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#endif
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#define kf_cexp(x,phase) \
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do{ \
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(x)->r = KISS_FFT_COS(phase);\
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(x)->i = KISS_FFT_SIN(phase);\
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}while(0)
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#define kf_cexp2(x,phase) \
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do{ \
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(x)->r = TRIG_UPSCALE*celt_cos_norm((phase));\
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(x)->i = TRIG_UPSCALE*celt_cos_norm((phase)-32768);\
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}while(0)
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#endif /* KISS_FFT_GUTS_H */

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