1 /* 2 * Copyright (c) 2017 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef VPX_VPX_DSP_PPC_TYPES_VSX_H_ 12 #define VPX_VPX_DSP_PPC_TYPES_VSX_H_ 13 14 #include <altivec.h> 15 16 typedef vector signed char int8x16_t; 17 typedef vector unsigned char uint8x16_t; 18 typedef vector signed short int16x8_t; 19 typedef vector unsigned short uint16x8_t; 20 typedef vector signed int int32x4_t; 21 typedef vector unsigned int uint32x4_t; 22 typedef vector bool char bool8x16_t; 23 typedef vector bool short bool16x8_t; 24 typedef vector bool int bool32x4_t; 25 26 #if defined(__clang__) && __clang_major__ < 6 27 static const uint8x16_t xxpermdi0_perm = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 28 0x06, 0x07, 0x10, 0x11, 0x12, 0x13, 29 0x14, 0x15, 0x16, 0x17 }; 30 static const uint8x16_t xxpermdi1_perm = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 31 0x06, 0x07, 0x18, 0x19, 0x1A, 0x1B, 32 0x1C, 0x1D, 0x1E, 0x1F }; 33 static const uint8x16_t xxpermdi2_perm = { 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 34 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 35 0x14, 0x15, 0x16, 0x17 }; 36 static const uint8x16_t xxpermdi3_perm = { 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 37 0x0E, 0x0F, 0x18, 0x19, 0x1A, 0x1B, 38 0x1C, 0x1D, 0x1E, 0x1F }; 39 #define xxpermdi(a, b, c) vec_perm(a, b, xxpermdi##c##_perm) 40 #elif defined(__GNUC__) && \ 41 (__GNUC__ > 6 || (__GNUC__ == 6 && __GNUC_MINOR__ >= 3)) 42 #define xxpermdi(a, b, c) vec_xxpermdi(a, b, c) 43 #endif 44 45 #ifdef WORDS_BIGENDIAN 46 #define unpack_to_u16_h(v) \ 47 (uint16x8_t) vec_mergeh(vec_splat_u8(0), (uint8x16_t)v) 48 #define unpack_to_u16_l(v) \ 49 (uint16x8_t) vec_mergel(vec_splat_u8(0), (uint8x16_t)v) 50 #define unpack_to_s16_h(v) \ 51 (int16x8_t) vec_mergeh(vec_splat_u8(0), (uint8x16_t)v) 52 #define unpack_to_s16_l(v) \ 53 (int16x8_t) vec_mergel(vec_splat_u8(0), (uint8x16_t)v) 54 #ifndef xxpermdi 55 #define xxpermdi(a, b, c) vec_xxpermdi(a, b, c) 56 #endif 57 #else 58 #define unpack_to_u16_h(v) \ 59 (uint16x8_t) vec_mergeh((uint8x16_t)v, vec_splat_u8(0)) 60 #define unpack_to_u16_l(v) \ 61 (uint16x8_t) vec_mergel((uint8x16_t)v, vec_splat_u8(0)) 62 #define unpack_to_s16_h(v) \ 63 (int16x8_t) vec_mergeh((uint8x16_t)v, vec_splat_u8(0)) 64 #define unpack_to_s16_l(v) \ 65 (int16x8_t) vec_mergel((uint8x16_t)v, vec_splat_u8(0)) 66 #ifndef xxpermdi 67 #define xxpermdi(a, b, c) vec_xxpermdi(b, a, ((c >> 1) | (c & 1) << 1) ^ 3) 68 #endif 69 #endif 70 71 static INLINE uint8x16_t read4x2(const uint8_t *a, int stride) { 72 const uint32x4_t a0 = (uint32x4_t)vec_vsx_ld(0, a); 73 const uint32x4_t a1 = (uint32x4_t)vec_vsx_ld(0, a + stride); 74 75 return (uint8x16_t)vec_mergeh(a0, a1); 76 } 77 78 #ifndef __POWER9_VECTOR__ 79 #define vec_absd(a, b) vec_sub(vec_max(a, b), vec_min(a, b)) 80 #endif 81 82 static const uint8x16_t vec_zeros_u8 = { 0, 0, 0, 0, 0, 0, 0, 0, 83 0, 0, 0, 0, 0, 0, 0, 0 }; 84 static const int16x8_t vec_zeros_s16 = { 0, 0, 0, 0, 0, 0, 0, 0 }; 85 static const int16x8_t vec_ones_s16 = { 1, 1, 1, 1, 1, 1, 1, 1 }; 86 static const int16x8_t vec_twos_s16 = { 2, 2, 2, 2, 2, 2, 2, 2 }; 87 static const uint16x8_t vec_ones_u16 = { 1, 1, 1, 1, 1, 1, 1, 1 }; 88 static const uint32x4_t vec_ones_u32 = { 1, 1, 1, 1 }; 89 static const int32x4_t vec_zeros_s32 = { 0, 0, 0, 0 }; 90 static const uint32x4_t vec_zeros_u32 = { 0, 0, 0, 0 }; 91 static const uint16x8_t vec_shift_sign_s16 = { 15, 15, 15, 15, 15, 15, 15, 15 }; 92 static const uint32x4_t vec_shift_sign_s32 = { 31, 31, 31, 31 }; 93 static const uint8x16_t vec_perm64 = { 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 94 0x0E, 0x0F, 0x00, 0x01, 0x02, 0x03, 95 0x04, 0x05, 0x06, 0x07 }; 96 static const uint8x16_t vec_perm32 = { 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 97 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 98 0x00, 0x01, 0x02, 0x03 }; 99 static const uint8x16_t vec_perm16 = { 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 100 0x08, 0x09, 0x0A, 0x0B, 0x0E, 0x0D, 101 0x0E, 0x0F, 0x00, 0x01 }; 102 103 static const uint8x16_t vec_perm_odd_even_pack = { 0x00, 0x01, 0x10, 0x11, 104 0x04, 0x05, 0x14, 0x15, 105 0x08, 0x09, 0x18, 0x19, 106 0x0C, 0x0D, 0x1C, 0x1D }; 107 108 #endif // VPX_VPX_DSP_PPC_TYPES_VSX_H_ 109
