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- whitespace consistency 2->4 [dsputil_init_ppc] - reorder struct initialization with dsputil_init_altivec [dsputil_init_ppc] - use casts instead of temp variables [vorbis_inverse_coupling_altivec] Originally committed as revision 5918 to svn://svn.ffmpeg.org/ffmpeg/trunk
71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*
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* Copyright (c) 2002 Brian Foley
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* Copyright (c) 2002 Dieter Shirley
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* Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _DSPUTIL_ALTIVEC_
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#define _DSPUTIL_ALTIVEC_
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#include "dsputil_ppc.h"
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#ifdef HAVE_ALTIVEC
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extern int has_altivec(void);
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// used to build registers permutation vectors (vcprm)
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// the 's' are for words in the _s_econd vector
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#define WORD_0 0x00,0x01,0x02,0x03
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#define WORD_1 0x04,0x05,0x06,0x07
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#define WORD_2 0x08,0x09,0x0a,0x0b
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#define WORD_3 0x0c,0x0d,0x0e,0x0f
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#define WORD_s0 0x10,0x11,0x12,0x13
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#define WORD_s1 0x14,0x15,0x16,0x17
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#define WORD_s2 0x18,0x19,0x1a,0x1b
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#define WORD_s3 0x1c,0x1d,0x1e,0x1f
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#ifdef CONFIG_DARWIN
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#define vcprm(a,b,c,d) (const vector unsigned char)(WORD_ ## a, WORD_ ## b, WORD_ ## c, WORD_ ## d)
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#else
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#define vcprm(a,b,c,d) (const vector unsigned char){WORD_ ## a, WORD_ ## b, WORD_ ## c, WORD_ ## d}
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#endif
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// vcprmle is used to keep the same index as in the SSE version.
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// it's the same as vcprm, with the index inversed
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// ('le' is Little Endian)
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#define vcprmle(a,b,c,d) vcprm(d,c,b,a)
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// used to build inverse/identity vectors (vcii)
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// n is _n_egative, p is _p_ositive
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#define FLOAT_n -1.
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#define FLOAT_p 1.
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#ifdef CONFIG_DARWIN
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#define vcii(a,b,c,d) (const vector float)(FLOAT_ ## a, FLOAT_ ## b, FLOAT_ ## c, FLOAT_ ## d)
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#else
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#define vcii(a,b,c,d) (const vector float){FLOAT_ ## a, FLOAT_ ## b, FLOAT_ ## c, FLOAT_ ## d}
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#endif
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#else /* HAVE_ALTIVEC */
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#ifdef ALTIVEC_USE_REFERENCE_C_CODE
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#error "I can't use ALTIVEC_USE_REFERENCE_C_CODE if I don't use HAVE_ALTIVEC"
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#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
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#endif /* HAVE_ALTIVEC */
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#endif /* _DSPUTIL_ALTIVEC_ */
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