mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-10 05:20:25 +00:00
102 lines
3.9 KiB
C
102 lines
3.9 KiB
C
|
// Copyright 2014 Google Inc. All Rights Reserved.
|
||
|
|
//
|
||
|
|
// Use of this source code is governed by a BSD-style license
|
||
|
|
// that can be found in the COPYING file in the root of the source
|
||
|
|
// tree. An additional intellectual property rights grant can be found
|
||
|
|
// in the file PATENTS. All contributing project authors may
|
||
|
|
// be found in the AUTHORS file in the root of the source tree.
|
||
|
|
// -----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// NEON common code.
|
||
|
|
|
||
|
|
#ifndef WEBP_DSP_NEON_H_
|
||
|
|
#define WEBP_DSP_NEON_H_
|
||
|
|
|
||
|
|
#include <arm_neon.h>
|
||
|
|
|
||
|
|
#include "dsp_dsp.h"
|
||
|
|
|
||
|
|
// Right now, some intrinsics functions seem slower, so we disable them
|
||
|
|
// everywhere except newer clang/gcc or aarch64 where the inline assembly is
|
||
|
|
// incompatible.
|
||
|
|
#if LOCAL_CLANG_PREREQ(3,8) || LOCAL_GCC_PREREQ(4,9) || defined(__aarch64__)
|
||
|
|
#define WEBP_USE_INTRINSICS // use intrinsics when possible
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define INIT_VECTOR2(v, a, b) do { \
|
||
|
|
v.val[0] = a; \
|
||
|
|
v.val[1] = b; \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define INIT_VECTOR3(v, a, b, c) do { \
|
||
|
|
v.val[0] = a; \
|
||
|
|
v.val[1] = b; \
|
||
|
|
v.val[2] = c; \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define INIT_VECTOR4(v, a, b, c, d) do { \
|
||
|
|
v.val[0] = a; \
|
||
|
|
v.val[1] = b; \
|
||
|
|
v.val[2] = c; \
|
||
|
|
v.val[3] = d; \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
// if using intrinsics, this flag avoids some functions that make gcc-4.6.3
|
||
|
|
// crash ("internal compiler error: in immed_double_const, at emit-rtl.").
|
||
|
|
// (probably similar to gcc.gnu.org/bugzilla/show_bug.cgi?id=48183)
|
||
|
|
#if !(LOCAL_CLANG_PREREQ(3,8) || LOCAL_GCC_PREREQ(4,8) || defined(__aarch64__))
|
||
|
|
#define WORK_AROUND_GCC
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static WEBP_INLINE int32x4x4_t Transpose4x4_NEON(const int32x4x4_t rows) {
|
||
|
|
uint64x2x2_t row01, row23;
|
||
|
|
|
||
|
|
row01.val[0] = vreinterpretq_u64_s32(rows.val[0]);
|
||
|
|
row01.val[1] = vreinterpretq_u64_s32(rows.val[1]);
|
||
|
|
row23.val[0] = vreinterpretq_u64_s32(rows.val[2]);
|
||
|
|
row23.val[1] = vreinterpretq_u64_s32(rows.val[3]);
|
||
|
|
// Transpose 64-bit values (there's no vswp equivalent)
|
||
|
|
{
|
||
|
|
const uint64x1_t row0h = vget_high_u64(row01.val[0]);
|
||
|
|
const uint64x1_t row2l = vget_low_u64(row23.val[0]);
|
||
|
|
const uint64x1_t row1h = vget_high_u64(row01.val[1]);
|
||
|
|
const uint64x1_t row3l = vget_low_u64(row23.val[1]);
|
||
|
|
row01.val[0] = vcombine_u64(vget_low_u64(row01.val[0]), row2l);
|
||
|
|
row23.val[0] = vcombine_u64(row0h, vget_high_u64(row23.val[0]));
|
||
|
|
row01.val[1] = vcombine_u64(vget_low_u64(row01.val[1]), row3l);
|
||
|
|
row23.val[1] = vcombine_u64(row1h, vget_high_u64(row23.val[1]));
|
||
|
|
}
|
||
|
|
{
|
||
|
|
const int32x4x2_t out01 = vtrnq_s32(vreinterpretq_s32_u64(row01.val[0]),
|
||
|
|
vreinterpretq_s32_u64(row01.val[1]));
|
||
|
|
const int32x4x2_t out23 = vtrnq_s32(vreinterpretq_s32_u64(row23.val[0]),
|
||
|
|
vreinterpretq_s32_u64(row23.val[1]));
|
||
|
|
int32x4x4_t out;
|
||
|
|
out.val[0] = out01.val[0];
|
||
|
|
out.val[1] = out01.val[1];
|
||
|
|
out.val[2] = out23.val[0];
|
||
|
|
out.val[3] = out23.val[1];
|
||
|
|
return out;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#if 0 // Useful debug macro.
|
||
|
|
#include <stdio.h>
|
||
|
|
#define PRINT_REG(REG, SIZE) do { \
|
||
|
|
int i; \
|
||
|
|
printf("%s \t[%d]: 0x", #REG, SIZE); \
|
||
|
|
if (SIZE == 8) { \
|
||
|
|
uint8_t _tmp[8]; \
|
||
|
|
vst1_u8(_tmp, (REG)); \
|
||
|
|
for (i = 0; i < 8; ++i) printf("%.2x ", _tmp[i]); \
|
||
|
|
} else if (SIZE == 16) { \
|
||
|
|
uint16_t _tmp[4]; \
|
||
|
|
vst1_u16(_tmp, (REG)); \
|
||
|
|
for (i = 0; i < 4; ++i) printf("%.4x ", _tmp[i]); \
|
||
|
|
} \
|
||
|
|
printf("\n"); \
|
||
|
|
} while (0)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // WEBP_DSP_NEON_H_
|