46ae64cd60
This reverts commit e00426c512.
The way we handle platform-specific intrinsics is not good, so the
current state will not compile on armv8. This commit also requires
SSE4.1 support, which is likely not a good idea for portable binaries.
We'll have to redo this with more caution after 3.2 is released, or
we might simply drop opus as we're only using it as dependency for
theora right now.
Fixes #33606.
125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
/* Copyright (c) 2007-2008 CSIRO
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Copyright (c) 2007-2009 Xiph.Org Foundation
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Written by Jean-Marc Valin */
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/*
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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
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, 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
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __VQ_MIPSR1_H__
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#define __VQ_MIPSR1_H__
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "mathops.h"
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#include "arch.h"
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static unsigned extract_collapse_mask(int *iy, int N, int B);
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static void normalise_residual(int * OPUS_RESTRICT iy, celt_norm * OPUS_RESTRICT X, int N, opus_val32 Ryy, opus_val16 gain);
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static void exp_rotation(celt_norm *X, int len, int dir, int stride, int K, int spread);
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static void renormalise_vector_mips(celt_norm *X, int N, opus_val16 gain, int arch);
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#define OVERRIDE_vq_exp_rotation1
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static void exp_rotation1(celt_norm *X, int len, int stride, opus_val16 c, opus_val16 s)
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{
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int i;
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opus_val16 ms;
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celt_norm *Xptr;
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Xptr = X;
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ms = NEG16(s);
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for (i=0;i<len-stride;i++)
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{
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celt_norm x1, x2;
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x1 = Xptr[0];
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x2 = Xptr[stride];
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Xptr[stride] = EXTRACT16(PSHR32(MAC16_16(MULT16_16(c, x2), s, x1), 15));
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*Xptr++ = EXTRACT16(PSHR32(MAC16_16(MULT16_16(c, x1), ms, x2), 15));
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}
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Xptr = &X[len-2*stride-1];
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for (i=len-2*stride-1;i>=0;i--)
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{
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celt_norm x1, x2;
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x1 = Xptr[0];
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x2 = Xptr[stride];
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Xptr[stride] = EXTRACT16(PSHR32(MAC16_16(MULT16_16(c, x2), s, x1), 15));
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*Xptr-- = EXTRACT16(PSHR32(MAC16_16(MULT16_16(c, x1), ms, x2), 15));
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}
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}
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#define OVERRIDE_renormalise_vector
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#define renormalise_vector(X, N, gain, arch) \
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(renormalise_vector_mips(X, N, gain, arch))
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void renormalise_vector_mips(celt_norm *X, int N, opus_val16 gain, int arch)
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{
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int i;
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#ifdef FIXED_POINT
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int k;
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#endif
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opus_val32 E = EPSILON;
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opus_val16 g;
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opus_val32 t;
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celt_norm *xptr = X;
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int X0, X1;
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(void)arch;
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asm volatile("mult $ac1, $0, $0");
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asm volatile("MTLO %0, $ac1" : :"r" (E));
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/*if(N %4)
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printf("error");*/
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for (i=0;i<N-2;i+=2)
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{
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X0 = (int)*xptr++;
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asm volatile("MADD $ac1, %0, %1" : : "r" (X0), "r" (X0));
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X1 = (int)*xptr++;
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asm volatile("MADD $ac1, %0, %1" : : "r" (X1), "r" (X1));
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}
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for (;i<N;i++)
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{
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X0 = (int)*xptr++;
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asm volatile("MADD $ac1, %0, %1" : : "r" (X0), "r" (X0));
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}
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asm volatile("MFLO %0, $ac1" : "=r" (E));
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#ifdef FIXED_POINT
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k = celt_ilog2(E)>>1;
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#endif
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t = VSHR32(E, 2*(k-7));
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g = MULT16_16_P15(celt_rsqrt_norm(t),gain);
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xptr = X;
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for (i=0;i<N;i++)
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{
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*xptr = EXTRACT16(PSHR32(MULT16_16(g, *xptr), k+1));
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xptr++;
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}
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/*return celt_sqrt(E);*/
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}
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#endif /* __VQ_MIPSR1_H__ */
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