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_DSP_PPC_TYPES_VSX_H_
12#define VPX_DSP_PPC_TYPES_VSX_H_
13
14#include <altivec.h>
15
16typedef vector signed char int8x16_t;
17typedef vector unsigned char uint8x16_t;
18typedef vector signed short int16x8_t;
19typedef vector unsigned short uint16x8_t;
20typedef vector signed int int32x4_t;
21typedef vector unsigned int uint32x4_t;
22
23#ifdef __clang__
24static const uint8x16_t xxpermdi0_perm = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
25                                           0x06, 0x07, 0x10, 0x11, 0x12, 0x13,
26                                           0x14, 0x15, 0x16, 0x17 };
27static const uint8x16_t xxpermdi1_perm = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
28                                           0x06, 0x07, 0x18, 0x19, 0x1A, 0x1B,
29                                           0x1C, 0x1D, 0x1E, 0x1F };
30static const uint8x16_t xxpermdi2_perm = { 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
31                                           0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13,
32                                           0x14, 0x15, 0x16, 0x17 };
33static const uint8x16_t xxpermdi3_perm = { 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
34                                           0x0E, 0x0F, 0x18, 0x19, 0x1A, 0x1B,
35                                           0x1C, 0x1D, 0x1E, 0x1F };
36#define xxpermdi(a, b, c) vec_perm(a, b, xxpermdi##c##_perm)
37#elif defined(__GNUC__) && \
38    (__GNUC__ > 6 || (__GNUC__ == 6 && __GNUC_MINOR__ >= 3))
39#define xxpermdi(a, b, c) vec_xxpermdi(a, b, c)
40#endif
41
42#ifdef WORDS_BIGENDIAN
43#define unpack_to_u16_h(v) \
44  (uint16x8_t) vec_mergeh(vec_splat_u8(0), (uint8x16_t)v)
45#define unpack_to_u16_l(v) \
46  (uint16x8_t) vec_mergel(vec_splat_u8(0), (uint8x16_t)v)
47#define unpack_to_s16_h(v) \
48  (int16x8_t) vec_mergeh(vec_splat_u8(0), (uint8x16_t)v)
49#define unpack_to_s16_l(v) \
50  (int16x8_t) vec_mergel(vec_splat_u8(0), (uint8x16_t)v)
51#ifndef xxpermdi
52#define xxpermdi(a, b, c) vec_xxpermdi(a, b, c)
53#endif
54#else
55#define unpack_to_u16_h(v) \
56  (uint16x8_t) vec_mergeh((uint8x16_t)v, vec_splat_u8(0))
57#define unpack_to_u16_l(v) \
58  (uint16x8_t) vec_mergel((uint8x16_t)v, vec_splat_u8(0))
59#define unpack_to_s16_h(v) \
60  (int16x8_t) vec_mergeh((uint8x16_t)v, vec_splat_u8(0))
61#define unpack_to_s16_l(v) \
62  (int16x8_t) vec_mergel((uint8x16_t)v, vec_splat_u8(0))
63#ifndef xxpermdi
64#define xxpermdi(a, b, c) vec_xxpermdi(b, a, ((c >> 1) | (c & 1) << 1) ^ 3)
65#endif
66#endif
67
68#endif  // VPX_DSP_PPC_TYPES_VSX_H_
69