mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
3.9 KiB
107 lines
3.9 KiB
/* |
|
* gcc fixes for altivec. |
|
* Used to workaround broken gcc (FSF gcc-3 pre gcc-3.3) |
|
* and to stay somewhat compatible with Darwin. |
|
* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#ifndef GCC_FIXES_H |
|
#define GCC_FIXES_H |
|
|
|
#ifdef HAVE_ALTIVEC_H |
|
#include <altivec.h> |
|
#endif |
|
|
|
#if (__GNUC__ < 4) |
|
# define REG_v(a) |
|
#else |
|
# define REG_v(a) asm ( #a ) |
|
#endif |
|
|
|
#if (__GNUC__ * 100 + __GNUC_MINOR__ < 303) |
|
|
|
/* This code was provided to me by Bartosch Pixa |
|
* as a separate header file (broken_mergel.h). |
|
* thanks to lu_zero for the workaround. |
|
* |
|
* See this mail for more information: |
|
* http://gcc.gnu.org/ml/gcc/2003-04/msg00967.html |
|
*/ |
|
|
|
static inline vector signed char ff_vmrglb (vector signed char const A, |
|
vector signed char const B) |
|
{ |
|
static const vector unsigned char lowbyte = { |
|
0x08, 0x18, 0x09, 0x19, 0x0a, 0x1a, 0x0b, 0x1b, |
|
0x0c, 0x1c, 0x0d, 0x1d, 0x0e, 0x1e, 0x0f, 0x1f |
|
}; |
|
return vec_perm (A, B, lowbyte); |
|
} |
|
|
|
static inline vector signed short ff_vmrglh (vector signed short const A, |
|
vector signed short const B) |
|
{ |
|
static const vector unsigned char lowhalf = { |
|
0x08, 0x09, 0x18, 0x19, 0x0a, 0x0b, 0x1a, 0x1b, |
|
0x0c, 0x0d, 0x1c, 0x1d, 0x0e, 0x0f, 0x1e, 0x1f |
|
}; |
|
return vec_perm (A, B, lowhalf); |
|
} |
|
|
|
static inline vector signed int ff_vmrglw (vector signed int const A, |
|
vector signed int const B) |
|
{ |
|
static const vector unsigned char lowword = { |
|
0x08, 0x09, 0x0a, 0x0b, 0x18, 0x19, 0x1a, 0x1b, |
|
0x0c, 0x0d, 0x0e, 0x0f, 0x1c, 0x1d, 0x1e, 0x1f |
|
}; |
|
return vec_perm (A, B, lowword); |
|
} |
|
/*#define ff_vmrglb ff_vmrglb |
|
#define ff_vmrglh ff_vmrglh |
|
#define ff_vmrglw ff_vmrglw |
|
*/ |
|
#undef vec_mergel |
|
|
|
#define vec_mergel(a1, a2) \ |
|
__ch (__bin_args_eq (vector signed char, (a1), vector signed char, (a2)), \ |
|
((vector signed char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \ |
|
__ch (__bin_args_eq (vector unsigned char, (a1), vector unsigned char, (a2)), \ |
|
((vector unsigned char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \ |
|
__ch (__bin_args_eq (vector signed short, (a1), vector signed short, (a2)), \ |
|
((vector signed short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \ |
|
__ch (__bin_args_eq (vector unsigned short, (a1), vector unsigned short, (a2)), \ |
|
((vector unsigned short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \ |
|
__ch (__bin_args_eq (vector float, (a1), vector float, (a2)), \ |
|
((vector float) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ |
|
__ch (__bin_args_eq (vector signed int, (a1), vector signed int, (a2)), \ |
|
((vector signed int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ |
|
__ch (__bin_args_eq (vector unsigned int, (a1), vector unsigned int, (a2)), \ |
|
((vector unsigned int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ |
|
__altivec_link_error_invalid_argument ()))))))) |
|
|
|
#endif |
|
|
|
#ifndef __MWERKS__ |
|
#define const_vector const vector |
|
#else |
|
#define const_vector vector |
|
#define AVV |
|
#endif |
|
|
|
#endif /* GCC_FIXES_H */
|
|
|