projects / libav.git / blame
| Commit | Line | Data |
|---|---|---|
| a9a07762 MN |
1 | /* |
| 2 | * gcc fixes for altivec. | |
| 3 | * Used to workaround broken gcc (FSF gcc-3 pre gcc-3.3) | |
| 4 | * and to stay somewhat compatible with Darwin. | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef _GCC_FIXES_ | |
| 8 | #define _GCC_FIXES_ | |
| 9 | ||
| 10 | #ifdef HAVE_ALTIVEC_H | |
| 11 | #include <altivec.h> | |
| 12 | #endif | |
| 13 | ||
| 14 | #ifdef CONFIG_DARWIN | |
| 15 | #define AVV(x...) (x) | |
| 16 | #else | |
| 17 | #define AVV(x...) {x} | |
| 18 | ||
| 19 | #if (__GNUC__ * 100 + __GNUC_MINOR__ < 303) | |
| 20 | ||
| 21 | /* This code was provided to me by Bartosch Pixa | |
| 22 | * as a separate header file (broken_mergel.h). | |
| 23 | * thanks to lu_zero for the workaround. | |
| 24 | * | |
| 25 | * See this mail for more information: | |
| 26 | * http://gcc.gnu.org/ml/gcc/2003-04/msg00967.html | |
| 27 | */ | |
| 28 | ||
| 29 | static inline vector signed char my_vmrglb (vector signed char const A, | |
| 30 | vector signed char const B) | |
| 31 | { | |
| 32 | static const vector unsigned char lowbyte = { | |
| 33 | 0x08, 0x18, 0x09, 0x19, 0x0a, 0x1a, 0x0b, 0x1b, | |
| 34 | 0x0c, 0x1c, 0x0d, 0x1d, 0x0e, 0x1e, 0x0f, 0x1f | |
| 35 | }; | |
| 36 | return vec_perm (A, B, lowbyte); | |
| 37 | } | |
| 38 | ||
| 39 | static inline vector signed short my_vmrglh (vector signed short const A, | |
| 40 | vector signed short const B) | |
| 41 | { | |
| 42 | static const vector unsigned char lowhalf = { | |
| 43 | 0x08, 0x09, 0x18, 0x19, 0x0a, 0x0b, 0x1a, 0x1b, | |
| 44 | 0x0c, 0x0d, 0x1c, 0x1d, 0x0e, 0x0f, 0x1e, 0x1f | |
| 45 | }; | |
| 46 | return vec_perm (A, B, lowhalf); | |
| 47 | } | |
| 48 | ||
| 49 | static inline vector signed int my_vmrglw (vector signed int const A, | |
| 50 | vector signed int const B) | |
| 51 | { | |
| 52 | static const vector unsigned char lowword = { | |
| 53 | 0x08, 0x09, 0x0a, 0x0b, 0x18, 0x19, 0x1a, 0x1b, | |
| 54 | 0x0c, 0x0d, 0x0e, 0x0f, 0x1c, 0x1d, 0x1e, 0x1f | |
| 55 | }; | |
| 56 | return vec_perm (A, B, lowword); | |
| 57 | } | |
| 58 | /*#define my_vmrglb my_vmrglb | |
| 59 | #define my_vmrglh my_vmrglh | |
| 60 | #define my_vmrglw my_vmrglw | |
| 61 | */ | |
| 62 | #undef vec_mergel | |
| 63 | ||
| 64 | #define vec_mergel(a1, a2) \ | |
| 65 | __ch (__bin_args_eq (vector signed char, (a1), vector signed char, (a2)), \ | |
| 66 | ((vector signed char) my_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \ | |
| 67 | __ch (__bin_args_eq (vector unsigned char, (a1), vector unsigned char, (a2)), \ | |
| 68 | ((vector unsigned char) my_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \ | |
| 69 | __ch (__bin_args_eq (vector signed short, (a1), vector signed short, (a2)), \ | |
| 70 | ((vector signed short) my_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \ | |
| 71 | __ch (__bin_args_eq (vector unsigned short, (a1), vector unsigned short, (a2)), \ | |
| 72 | ((vector unsigned short) my_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \ | |
| 73 | __ch (__bin_args_eq (vector float, (a1), vector float, (a2)), \ | |
| 74 | ((vector float) my_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ | |
| 75 | __ch (__bin_args_eq (vector signed int, (a1), vector signed int, (a2)), \ | |
| 76 | ((vector signed int) my_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ | |
| 77 | __ch (__bin_args_eq (vector unsigned int, (a1), vector unsigned int, (a2)), \ | |
| 78 | ((vector unsigned int) my_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \ | |
| 79 | __altivec_link_error_invalid_argument ()))))))) | |
| 80 | ||
| 81 | #endif | |
| 82 | ||
| 83 | #endif /* CONFIG_DARWIN */ | |
| 84 | ||
| 85 | #endif /* _GCC_FIXES_ */ |