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102 lines
3.8 KiB
102 lines
3.8 KiB
/* |
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* gcc fixes for altivec. |
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* Used to workaround broken gcc (FSF gcc-3 pre gcc-3.3) |
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* and to stay somewhat compatible with Darwin. |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg 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 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg 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 FFmpeg; 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 FFMPEG_GCC_FIXES_H |
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#define FFMPEG_GCC_FIXES_H |
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#include "config.h" |
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#ifdef HAVE_ALTIVEC_H |
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#include <altivec.h> |
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#endif |
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#if (__GNUC__ < 4) |
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# define REG_v(a) |
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#else |
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# define REG_v(a) asm ( #a ) |
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#endif |
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#if (__GNUC__ * 100 + __GNUC_MINOR__ < 303) |
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/* This code was provided to me by Bartosch Pixa |
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* as a separate header file (broken_mergel.h). |
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* thanks to lu_zero for the workaround. |
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* |
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* See this mail for more information: |
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* http://gcc.gnu.org/ml/gcc/2003-04/msg00967.html |
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*/ |
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static inline vector signed char ff_vmrglb (vector signed char const A, |
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vector signed char const B) |
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{ |
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static const vector unsigned char lowbyte = { |
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0x08, 0x18, 0x09, 0x19, 0x0a, 0x1a, 0x0b, 0x1b, |
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0x0c, 0x1c, 0x0d, 0x1d, 0x0e, 0x1e, 0x0f, 0x1f |
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}; |
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return vec_perm (A, B, lowbyte); |
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} |
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static inline vector signed short ff_vmrglh (vector signed short const A, |
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vector signed short const B) |
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{ |
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static const vector unsigned char lowhalf = { |
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0x08, 0x09, 0x18, 0x19, 0x0a, 0x0b, 0x1a, 0x1b, |
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0x0c, 0x0d, 0x1c, 0x1d, 0x0e, 0x0f, 0x1e, 0x1f |
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}; |
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return vec_perm (A, B, lowhalf); |
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} |
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static inline vector signed int ff_vmrglw (vector signed int const A, |
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vector signed int const B) |
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{ |
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static const vector unsigned char lowword = { |
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0x08, 0x09, 0x0a, 0x0b, 0x18, 0x19, 0x1a, 0x1b, |
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0x0c, 0x0d, 0x0e, 0x0f, 0x1c, 0x1d, 0x1e, 0x1f |
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}; |
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return vec_perm (A, B, lowword); |
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} |
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/*#define ff_vmrglb ff_vmrglb |
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#define ff_vmrglh ff_vmrglh |
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#define ff_vmrglw ff_vmrglw |
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*/ |
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#undef vec_mergel |
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#define vec_mergel(a1, a2) \ |
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__ch (__bin_args_eq (vector signed char, (a1), vector signed char, (a2)), \ |
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((vector signed char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \ |
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__ch (__bin_args_eq (vector unsigned char, (a1), vector unsigned char, (a2)), \ |
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((vector unsigned char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \ |
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__ch (__bin_args_eq (vector signed short, (a1), vector signed short, (a2)), \ |
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((vector signed short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \ |
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__ch (__bin_args_eq (vector unsigned short, (a1), vector unsigned short, (a2)), \ |
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((vector unsigned short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \ |
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__ch (__bin_args_eq (vector float, (a1), vector float, (a2)), \ |
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((vector float) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ |
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__ch (__bin_args_eq (vector signed int, (a1), vector signed int, (a2)), \ |
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((vector signed int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ |
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__ch (__bin_args_eq (vector unsigned int, (a1), vector unsigned int, (a2)), \ |
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((vector unsigned int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ |
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__altivec_link_error_invalid_argument ()))))))) |
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#endif |
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#endif /* FFMPEG_GCC_FIXES_H */
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