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@mikeisted /image.cpp
Last active Jun 26, 2018

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Modified librealsense file to compile for Jetson TX2 and D435 depth camera. File location is librealsense/src/image.cpp
// License: Apache 2.0. See LICENSE file in root directory.
// Copyright(c) 2015 Intel Corporation. All Rights Reserved.
#define _USE_MATH_DEFINES
#include <cmath>
#include "image.h"
//#include "../include/librealsense2/rsutil.h" // For projection/deprojection logic
#ifdef __SSSE3__
#include <tmmintrin.h> // For SSE3 intrinsic used in unpack_yuy2_sse
#include <immintrin.h>
#endif
//#ifdef ANDROID
bool has_avx() { return false; }
//#else
//#ifdef _WIN32
//#define cpuid(info, x) __cpuidex(info, x, 0)
//#else
//#include <cpuid.h>
//void cpuid(int info[4], int info_type){
// __cpuid_count(info_type, 0, info[0], info[1], info[2], info[3]);
//}
//#endif
//bool has_avx()
//{
//int info[4];
//cpuid(info, 0);
//cpuid(info, 0x80000000);
//return (info[2] & ((int)1 << 28)) != 0;
//return false;
//}
//#endif
#ifdef RGB_AVX2
#include <immintrin.h>
#endif
#pragma pack(push, 1) // All structs in this file are assumed to be byte-packed
namespace librealsense
{
////////////////////////////
// Image size computation //
////////////////////////////
size_t get_image_size(int width, int height, rs2_format format)
{
if (format == RS2_FORMAT_YUYV || (format == RS2_FORMAT_UYVY)) assert(width % 2 == 0);
if (format == RS2_FORMAT_RAW10) assert(width % 4 == 0);
return width * height * get_image_bpp(format) / 8;
}
int get_image_bpp(rs2_format format)
{
switch (format)
{
case RS2_FORMAT_Z16: return 16;
case RS2_FORMAT_DISPARITY16: return 16;
case RS2_FORMAT_DISPARITY32: return 32;
case RS2_FORMAT_XYZ32F: return 12 * 8;
case RS2_FORMAT_YUYV: return 16;
case RS2_FORMAT_RGB8: return 24;
case RS2_FORMAT_BGR8: return 24;
case RS2_FORMAT_RGBA8: return 32;
case RS2_FORMAT_BGRA8: return 32;
case RS2_FORMAT_Y8: return 8;
case RS2_FORMAT_Y16: return 16;
case RS2_FORMAT_RAW10: return 10;
case RS2_FORMAT_RAW16: return 16;
case RS2_FORMAT_RAW8: return 8;
case RS2_FORMAT_UYVY: return 16;
case RS2_FORMAT_GPIO_RAW: return 1;
case RS2_FORMAT_MOTION_RAW: return 1;
case RS2_FORMAT_MOTION_XYZ32F: return 1;
case RS2_FORMAT_6DOF: return 1;
default: assert(false); return 0;
}
}
//////////////////////////////
// Naive unpacking routines //
//////////////////////////////
#pragma pack (push, 1)
struct hid_data
{
short x;
byte reserved1[2];
short y;
byte reserved2[2];
short z;
byte reserved3[2];
};
#pragma pack(pop)
inline void copy_hid_axes(byte * const dest[], const byte * source, double factor, int count)
{
auto hid = (hid_data*)(source);
float axes[3] = { static_cast<float>((hid->x) * factor),
static_cast<float>((hid->y) * factor),
static_cast<float>((hid->z) * factor) };
librealsense::copy(dest[0], axes, sizeof(axes));
}
template<size_t SIZE> void unpack_accel_axes(byte * const dest[], const byte * source, int count)
{
static const float gravity = 9.80665f; // Standard Gravitation Acceleration
static const double accelerator_transform_factor = 0.001f*gravity;
copy_hid_axes(dest, source, accelerator_transform_factor, count);
}
template<size_t SIZE> void unpack_gyro_axes(byte * const dest[], const byte * source, int count)
{
static const double gyro_transform_factor = 0.1* M_PI / 180.f;
copy_hid_axes(dest, source, gyro_transform_factor, count);
}
void unpack_hid_raw_data(byte * const dest[], const byte * source, int count)
{
librealsense::copy(dest[0] + 0, source + 0, 2);
librealsense::copy(dest[0] + 2, source + 4, 2);
librealsense::copy(dest[0] + 4, source + 8, 2);
librealsense::copy(dest[0] + 6, source + 16, 8);
}
void unpack_input_reports_data(byte * const dest[], const byte * source, int count)
{
// Input Report Struct
// uint8_t sensor_state
// uint8_t sourceId
// uint32_t customTimestamp
// uint8_t mmCounter
// uint8_t usbCounter
static const int input_reports_size = 9;
static const int input_reports_offset = 15;
librealsense::copy(dest[0], source + input_reports_offset, input_reports_size);
}
template<size_t SIZE> void copy_pixels(byte * const dest[], const byte * source, int count)
{
librealsense::copy(dest[0], source, SIZE * count);
}
void copy_raw10(byte * const dest[], const byte * source, int count)
{
librealsense::copy(dest[0], source, (5 * (count / 4)));
}
template<class SOURCE, class UNPACK> void unpack_pixels(byte * const dest[], int count, const SOURCE * source, UNPACK unpack)
{
auto out = reinterpret_cast<decltype(unpack(SOURCE())) *>(dest[0]);
for (int i = 0; i < count; ++i) *out++ = unpack(*source++);
}
void unpack_y16_from_y8(byte * const d[], const byte * s, int n) { unpack_pixels(d, n, reinterpret_cast<const uint8_t *>(s), [](uint8_t pixel) -> uint16_t { return pixel | pixel << 8; }); }
void unpack_y16_from_y16_10(byte * const d[], const byte * s, int n) { unpack_pixels(d, n, reinterpret_cast<const uint16_t *>(s), [](uint16_t pixel) -> uint16_t { return pixel << 6; }); }
void unpack_y8_from_y16_10(byte * const d[], const byte * s, int n) { unpack_pixels(d, n, reinterpret_cast<const uint16_t *>(s), [](uint16_t pixel) -> uint8_t { return pixel >> 2; }); }
void unpack_rw10_from_rw8(byte * const d[], const byte * s, int n)
{
#ifdef __SSSE3__
auto src = reinterpret_cast<const __m128i *>(s);
auto dst = reinterpret_cast<__m128i *>(d[0]);
__m128i* xin = (__m128i*)src;
__m128i* xout = (__m128i*) dst;
for (int i = 0; i < n; i += 16, ++xout, xin += 2)
{
__m128i in1_16 = _mm_load_si128((__m128i*)(xin));
__m128i in2_16 = _mm_load_si128((__m128i*)(xin + 1));
__m128i out1_16 = _mm_srli_epi16(in1_16, 2);
__m128i out2_16 = _mm_srli_epi16(in2_16, 2);
__m128i out8 = _mm_packus_epi16(out1_16, out2_16);
_mm_store_si128(xout, out8);
}
#else // Generic code for when SSSE3 is not available.
unsigned short* from = (unsigned short*)s;
byte* to = d[0];
for (int i = 0; i < n; ++i)
{
byte temp = (byte)(*from >> 2);
*to = temp;
++from;
++to;
}
#endif
}
// Unpack luminocity 8 bit from 10-bit packed macro-pixels (4 pixels in 5 bytes):
// The first four bytes store the 8 MSB of each pixel, and the last byte holds the 2 LSB for each pixel :8888[2222]
void unpack_y8_from_rw10(byte * const d[], const byte * s, int n)
{
#ifdef __SSSE3__
assert(!(n % 48)); //We process 12 macro-pixels simultaneously to achieve performance boost
auto src = reinterpret_cast<const uint8_t *>(s);
auto dst = reinterpret_cast<uint8_t *>(d[0]);
const __m128i * blk_0_in = reinterpret_cast<const __m128i *>(src);
const __m128i * blk_1_in = reinterpret_cast<const __m128i *>(src + 15);
const __m128i * blk_2_in = reinterpret_cast<const __m128i *>(src + 30);
const __m128i * blk_3_in = reinterpret_cast<const __m128i *>(src + 45);
auto blk_0_out = reinterpret_cast<__m128i *>(dst);
auto blk_1_out = reinterpret_cast<__m128i *>(dst + 12);
auto blk_2_out = reinterpret_cast<__m128i *>(dst + 24);
auto blk_3_out = reinterpret_cast<__m128i *>(dst + 36);
__m128i res[4];
// The mask will reorder the input so the 12 bytes with pixels' MSB values will come first
static const __m128i mask = _mm_setr_epi8(0x0, 0x1, 0x2, 0x3, 0x5, 0x6, 0x7, 0x8, 0xa, 0xb, 0xc, 0xd, -1, -1, -1, -1);
for (int i = 0; (i + 48) < n; i += 48, src += 60, dst += 48)
{
blk_0_in = reinterpret_cast<const __m128i *>(src);
blk_1_in = reinterpret_cast<const __m128i *>(src + 15);
blk_2_in = reinterpret_cast<const __m128i *>(src + 30);
blk_3_in = reinterpret_cast<const __m128i *>(src + 45);
blk_0_out = reinterpret_cast<__m128i *>(dst);
blk_1_out = reinterpret_cast<__m128i *>(dst + 12);
blk_2_out = reinterpret_cast<__m128i *>(dst + 24);
blk_3_out = reinterpret_cast<__m128i *>(dst + 36);
res[0] = _mm_shuffle_epi8(_mm_loadu_si128(blk_0_in), mask);
res[1] = _mm_shuffle_epi8(_mm_loadu_si128(blk_1_in), mask);
res[2] = _mm_shuffle_epi8(_mm_loadu_si128(blk_2_in), mask);
res[3] = _mm_shuffle_epi8(_mm_loadu_si128(blk_3_in), mask);
_mm_storeu_si128(blk_0_out, res[0]);
_mm_storeu_si128(blk_1_out, res[1]);
_mm_storeu_si128(blk_2_out, res[2]);
_mm_storeu_si128(blk_3_out, res[3]);
}
#else // Generic code for when SSSE3 is not available.
auto from = reinterpret_cast<const uint8_t *>(s);
uint8_t* tgt = d[0];
for (int i = 0; i < n; i += 4, from += 5)
{
*tgt++ = from[0];
*tgt++ = from[1];
*tgt++ = from[2];
*tgt++ = from[3];
}
#endif
}
/////////////////////////////
// YUY2 unpacking routines //
/////////////////////////////
// This templated function unpacks YUY2 into Y8/Y16/RGB8/RGBA8/BGR8/BGRA8, depending on the compile-time parameter FORMAT.
// It is expected that all branching outside of the loop control variable will be removed due to constant-folding.
template<rs2_format FORMAT> void unpack_yuy2(byte * const d[], const byte * s, int n)
{
assert(n % 16 == 0); // All currently supported color resolutions are multiples of 16 pixels. Could easily extend support to other resolutions by copying final n<16 pixels into a zero-padded buffer and recursively calling self for final iteration.
#ifdef __SSSE3__
static bool do_avx = has_avx();
if (do_avx)
{
auto src = reinterpret_cast<const __m256i *>(s);
auto dst = reinterpret_cast<__m256i *>(d[0]);
#pragma omp parallel for
for (int i = 0; i < n / 32; i++)
{
const __m256i zero = _mm256_set1_epi8(0);
const __m256i n100 = _mm256_set1_epi16(100 << 4);
const __m256i n208 = _mm256_set1_epi16(208 << 4);
const __m256i n298 = _mm256_set1_epi16(298 << 4);
const __m256i n409 = _mm256_set1_epi16(409 << 4);
const __m256i n516 = _mm256_set1_epi16(516 << 4);
const __m256i evens_odds = _mm256_setr_epi8(0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30);
// Load 16 YUY2 pixels each into two 32-byte registers
__m256i s0 = _mm256_loadu_si256(&src[i * 2]);
__m256i s1 = _mm256_loadu_si256(&src[i * 2 + 1]);
if (FORMAT == RS2_FORMAT_Y8)
{
// Align all Y components and output 32 pixels (32 bytes) at once
__m256i y0 = _mm256_shuffle_epi8(s0, _mm256_setr_epi8(1, 3, 5, 7, 9, 11, 13, 15, 0, 2, 4, 6, 8, 10, 12, 14,
1, 3, 5, 7, 9, 11, 13, 15, 0, 2, 4, 6, 8, 10, 12, 14));
__m256i y1 = _mm256_shuffle_epi8(s1, _mm256_setr_epi8(0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15,
0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15));
_mm256_storeu_si256(&dst[i], _mm256_alignr_epi8(y0, y1, 8));
continue;
}
// Shuffle all Y components to the low order bytes of the register, and all U/V components to the high order bytes
const __m256i evens_odd1s_odd3s = _mm256_setr_epi8(0, 2, 4, 6, 8, 10, 12, 14, 1, 5, 9, 13, 3, 7, 11, 15,
0, 2, 4, 6, 8, 10, 12, 14, 1, 5, 9, 13, 3, 7, 11, 15); // to get yyyyyyyyuuuuvvvvyyyyyyyyuuuuvvvv
__m256i yyyyyyyyuuuuvvvv0 = _mm256_shuffle_epi8(s0, evens_odd1s_odd3s);
__m256i yyyyyyyyuuuuvvvv8 = _mm256_shuffle_epi8(s1, evens_odd1s_odd3s);
// Retrieve all 32 Y components as 32-bit values (16 components per register))
__m256i y16__0_7 = _mm256_unpacklo_epi8(yyyyyyyyuuuuvvvv0, zero); // convert to 16 bit
__m256i y16__8_F = _mm256_unpacklo_epi8(yyyyyyyyuuuuvvvv8, zero); // convert to 16 bit
if (FORMAT == RS2_FORMAT_Y16)
{
_mm256_storeu_si256(&dst[i * 2], _mm256_slli_epi16(y16__0_7, 8));
_mm256_storeu_si256(&dst[i * 2 + 1], _mm256_slli_epi16(y16__8_F, 8));
continue;
}
// Retrieve all 16 U and V components as 32-bit values (16 components per register)
__m256i uv = _mm256_unpackhi_epi32(yyyyyyyyuuuuvvvv0, yyyyyyyyuuuuvvvv8); // uuuuuuuuvvvvvvvvuuuuuuuuvvvvvvvv
__m256i u = _mm256_unpacklo_epi8(uv, uv); // u's duplicated: uu uu uu uu uu uu uu uu uu uu uu uu uu uu uu uu
__m256i v = _mm256_unpackhi_epi8(uv, uv); // vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv vv
__m256i u16__0_7 = _mm256_unpacklo_epi8(u, zero); // convert to 16 bit
__m256i u16__8_F = _mm256_unpackhi_epi8(u, zero); // convert to 16 bit
__m256i v16__0_7 = _mm256_unpacklo_epi8(v, zero); // convert to 16 bit
__m256i v16__8_F = _mm256_unpackhi_epi8(v, zero); // convert to 16 bit
// Compute R, G, B values for first 16 pixels
__m256i c16__0_7 = _mm256_slli_epi16(_mm256_subs_epi16(y16__0_7, _mm256_set1_epi16(16)), 4); // (y - 16) << 4
__m256i d16__0_7 = _mm256_slli_epi16(_mm256_subs_epi16(u16__0_7, _mm256_set1_epi16(128)), 4); // (u - 128) << 4 perhaps could have done these u,v to d,e before the duplication
__m256i e16__0_7 = _mm256_slli_epi16(_mm256_subs_epi16(v16__0_7, _mm256_set1_epi16(128)), 4); // (v - 128) << 4
__m256i r16__0_7 = _mm256_min_epi16(_mm256_set1_epi16(255), _mm256_max_epi16(zero, ((_mm256_add_epi16(_mm256_mulhi_epi16(c16__0_7, n298), _mm256_mulhi_epi16(e16__0_7, n409)))))); // (298 * c + 409 * e + 128) ; //
__m256i g16__0_7 = _mm256_min_epi16(_mm256_set1_epi16(255), _mm256_max_epi16(zero, ((_mm256_sub_epi16(_mm256_sub_epi16(_mm256_mulhi_epi16(c16__0_7, n298), _mm256_mulhi_epi16(d16__0_7, n100)), _mm256_mulhi_epi16(e16__0_7, n208)))))); // (298 * c - 100 * d - 208 * e + 128)
__m256i b16__0_7 = _mm256_min_epi16(_mm256_set1_epi16(255), _mm256_max_epi16(zero, ((_mm256_add_epi16(_mm256_mulhi_epi16(c16__0_7, n298), _mm256_mulhi_epi16(d16__0_7, n516)))))); // clampbyte((298 * c + 516 * d + 128) >> 8);
// Compute R, G, B values for second 8 pixels
__m256i c16__8_F = _mm256_slli_epi16(_mm256_subs_epi16(y16__8_F, _mm256_set1_epi16(16)), 4); // (y - 16) << 4
__m256i d16__8_F = _mm256_slli_epi16(_mm256_subs_epi16(u16__8_F, _mm256_set1_epi16(128)), 4); // (u - 128) << 4 perhaps could have done these u,v to d,e before the duplication
__m256i e16__8_F = _mm256_slli_epi16(_mm256_subs_epi16(v16__8_F, _mm256_set1_epi16(128)), 4); // (v - 128) << 4
__m256i r16__8_F = _mm256_min_epi16(_mm256_set1_epi16(255), _mm256_max_epi16(zero, ((_mm256_add_epi16(_mm256_mulhi_epi16(c16__8_F, n298), _mm256_mulhi_epi16(e16__8_F, n409)))))); // (298 * c + 409 * e + 128) ; //
__m256i g16__8_F = _mm256_min_epi16(_mm256_set1_epi16(255), _mm256_max_epi16(zero, ((_mm256_sub_epi16(_mm256_sub_epi16(_mm256_mulhi_epi16(c16__8_F, n298), _mm256_mulhi_epi16(d16__8_F, n100)), _mm256_mulhi_epi16(e16__8_F, n208)))))); // (298 * c - 100 * d - 208 * e + 128)
__m256i b16__8_F = _mm256_min_epi16(_mm256_set1_epi16(255), _mm256_max_epi16(zero, ((_mm256_add_epi16(_mm256_mulhi_epi16(c16__8_F, n298), _mm256_mulhi_epi16(d16__8_F, n516)))))); // clampbyte((298 * c + 516 * d + 128) >> 8);
if (FORMAT == RS2_FORMAT_RGB8 || FORMAT == RS2_FORMAT_RGBA8)
{
// Shuffle separate R, G, B values into four registers storing four pixels each in (R, G, B, A) order
__m256i rg8__0_7 = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(r16__0_7, evens_odds), _mm256_shuffle_epi8(g16__0_7, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m256i ba8__0_7 = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(b16__0_7, evens_odds), _mm256_set1_epi8(-1));
__m256i rgba_0_3 = _mm256_unpacklo_epi16(rg8__0_7, ba8__0_7);
__m256i rgba_4_7 = _mm256_unpackhi_epi16(rg8__0_7, ba8__0_7);
__m128i ZW1 = _mm256_extracti128_si256(rgba_4_7, 0);
__m256i XYZW1 = _mm256_inserti128_si256(rgba_0_3, ZW1, 1);
__m128i UV1 = _mm256_extracti128_si256(rgba_0_3, 1);
__m256i UVST1 = _mm256_inserti128_si256(rgba_4_7, UV1, 0);
__m256i rg8__8_F = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(r16__8_F, evens_odds), _mm256_shuffle_epi8(g16__8_F, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m256i ba8__8_F = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(b16__8_F, evens_odds), _mm256_set1_epi8(-1));
__m256i rgba_8_B = _mm256_unpacklo_epi16(rg8__8_F, ba8__8_F);
__m256i rgba_C_F = _mm256_unpackhi_epi16(rg8__8_F, ba8__8_F);
__m128i ZW2 = _mm256_extracti128_si256(rgba_C_F, 0);
__m256i XYZW2 = _mm256_inserti128_si256(rgba_8_B, ZW2, 1);
__m128i UV2 = _mm256_extracti128_si256(rgba_8_B, 1);
__m256i UVST2 = _mm256_inserti128_si256(rgba_C_F, UV2, 0);
if (FORMAT == RS2_FORMAT_RGBA8)
{
// Store 32 pixels (128 bytes) at once
_mm256_storeu_si256(&dst[i * 4], XYZW1);
_mm256_storeu_si256(&dst[i * 4 + 1], UVST1);
_mm256_storeu_si256(&dst[i * 4 + 2], XYZW2);
_mm256_storeu_si256(&dst[i * 4 + 3], UVST2);
}
if (FORMAT == RS2_FORMAT_RGB8)
{
__m128i rgba0 = _mm256_extracti128_si256(XYZW1, 0);
__m128i rgba1 = _mm256_extracti128_si256(XYZW1, 1);
__m128i rgba2 = _mm256_extracti128_si256(UVST1, 0);
__m128i rgba3 = _mm256_extracti128_si256(UVST1, 1);
__m128i rgba4 = _mm256_extracti128_si256(XYZW2, 0);
__m128i rgba5 = _mm256_extracti128_si256(XYZW2, 1);
__m128i rgba6 = _mm256_extracti128_si256(UVST2, 0);
__m128i rgba7 = _mm256_extracti128_si256(UVST2, 1);
// Shuffle rgb triples to the start and end of each register
__m128i rgb0 = _mm_shuffle_epi8(rgba0, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb1 = _mm_shuffle_epi8(rgba1, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb2 = _mm_shuffle_epi8(rgba2, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 14));
__m128i rgb3 = _mm_shuffle_epi8(rgba3, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
__m128i rgb4 = _mm_shuffle_epi8(rgba4, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb5 = _mm_shuffle_epi8(rgba5, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb6 = _mm_shuffle_epi8(rgba6, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 14));
__m128i rgb7 = _mm_shuffle_epi8(rgba7, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
__m128i a1 = _mm_alignr_epi8(rgb1, rgb0, 4);
__m128i a2 = _mm_alignr_epi8(rgb2, rgb1, 8);
__m128i a3 = _mm_alignr_epi8(rgb3, rgb2, 12);
__m128i a4 = _mm_alignr_epi8(rgb5, rgb4, 4);
__m128i a5 = _mm_alignr_epi8(rgb6, rgb5, 8);
__m128i a6 = _mm_alignr_epi8(rgb7, rgb6, 12);
__m256i a1_2 = _mm256_castsi128_si256(a1);
a1_2 = _mm256_inserti128_si256(a1_2, a2, 1);
__m256i a3_4 = _mm256_castsi128_si256(a3);
a3_4 = _mm256_inserti128_si256(a3_4, a4, 1);
__m256i a5_6 = _mm256_castsi128_si256(a5);
a5_6 = _mm256_inserti128_si256(a5_6, a6, 1);
// Align registers and store 32 pixels (96 bytes) at once
_mm256_storeu_si256(&dst[i * 3], a1_2);
_mm256_storeu_si256(&dst[i * 3 + 1], a3_4);
_mm256_storeu_si256(&dst[i * 3 + 2], a5_6);
}
}
if (FORMAT == RS2_FORMAT_BGR8 || FORMAT == RS2_FORMAT_BGRA8)
{
// Shuffle separate R, G, B values into four registers storing four pixels each in (B, G, R, A) order
__m256i bg8__0_7 = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(b16__0_7, evens_odds), _mm256_shuffle_epi8(g16__0_7, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m256i ra8__0_7 = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(r16__0_7, evens_odds), _mm256_set1_epi8(-1));
__m256i bgra_0_3 = _mm256_unpacklo_epi16(bg8__0_7, ra8__0_7);
__m256i bgra_4_7 = _mm256_unpackhi_epi16(bg8__0_7, ra8__0_7);
__m128i ZW1 = _mm256_extracti128_si256(bgra_4_7, 0);
__m256i XYZW1 = _mm256_inserti128_si256(bgra_0_3, ZW1, 1);
__m128i UV1 = _mm256_extracti128_si256(bgra_0_3, 1);
__m256i UVST1 = _mm256_inserti128_si256(bgra_4_7, UV1, 0);
__m256i bg8__8_F = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(b16__8_F, evens_odds), _mm256_shuffle_epi8(g16__8_F, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m256i ra8__8_F = _mm256_unpacklo_epi8(_mm256_shuffle_epi8(r16__8_F, evens_odds), _mm256_set1_epi8(-1));
__m256i bgra_8_B = _mm256_unpacklo_epi16(bg8__8_F, ra8__8_F);
__m256i bgra_C_F = _mm256_unpackhi_epi16(bg8__8_F, ra8__8_F);
__m128i ZW2 = _mm256_extracti128_si256(bgra_C_F, 0);
__m256i XYZW2 = _mm256_inserti128_si256(bgra_8_B, ZW2, 1);
__m128i UV2 = _mm256_extracti128_si256(bgra_8_B, 1);
__m256i UVST2 = _mm256_inserti128_si256(bgra_C_F, UV2, 0);
if (FORMAT == RS2_FORMAT_BGRA8)
{
// Store 32 pixels (128 bytes) at once
_mm256_storeu_si256(&dst[i * 4], XYZW1);
_mm256_storeu_si256(&dst[i * 4 + 1], UVST1);
_mm256_storeu_si256(&dst[i * 4 + 2], XYZW2);
_mm256_storeu_si256(&dst[i * 4 + 3], UVST2);
}
if (FORMAT == RS2_FORMAT_BGR8)
{
__m128i rgba0 = _mm256_extracti128_si256(XYZW1, 0);
__m128i rgba1 = _mm256_extracti128_si256(XYZW1, 1);
__m128i rgba2 = _mm256_extracti128_si256(UVST1, 0);
__m128i rgba3 = _mm256_extracti128_si256(UVST1, 1);
__m128i rgba4 = _mm256_extracti128_si256(XYZW2, 0);
__m128i rgba5 = _mm256_extracti128_si256(XYZW2, 1);
__m128i rgba6 = _mm256_extracti128_si256(UVST2, 0);
__m128i rgba7 = _mm256_extracti128_si256(UVST2, 1);
// Shuffle rgb triples to the start and end of each register
__m128i bgr0 = _mm_shuffle_epi8(rgba0, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr1 = _mm_shuffle_epi8(rgba1, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr2 = _mm_shuffle_epi8(rgba2, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 1));
__m128i bgr3 = _mm_shuffle_epi8(rgba3, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
__m128i bgr4 = _mm_shuffle_epi8(rgba4, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr5 = _mm_shuffle_epi8(rgba5, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr6 = _mm_shuffle_epi8(rgba6, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 1));
__m128i bgr7 = _mm_shuffle_epi8(rgba7, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
__m128i a1 = _mm_alignr_epi8(bgr1, bgr0, 4);
__m128i a2 = _mm_alignr_epi8(bgr2, bgr1, 8);
__m128i a3 = _mm_alignr_epi8(bgr3, bgr2, 12);
__m128i a4 = _mm_alignr_epi8(bgr5, bgr4, 4);
__m128i a5 = _mm_alignr_epi8(bgr6, bgr5, 8);
__m128i a6 = _mm_alignr_epi8(bgr7, bgr6, 12);
__m256i a1_2 = _mm256_castsi128_si256(a1);
a1_2 = _mm256_inserti128_si256(a1_2, a2, 1);
__m256i a3_4 = _mm256_castsi128_si256(a3);
a3_4 = _mm256_inserti128_si256(a3_4, a4, 1);
__m256i a5_6 = _mm256_castsi128_si256(a5);
a5_6 = _mm256_inserti128_si256(a5_6, a6, 1);
// Align registers and store 32 pixels (96 bytes) at once
_mm256_storeu_si256(&dst[i * 3], a1_2);
_mm256_storeu_si256(&dst[i * 3 + 1], a3_4);
_mm256_storeu_si256(&dst[i * 3 + 2], a5_6);
}
}
}
}
else
{
auto src = reinterpret_cast<const __m128i *>(s);
auto dst = reinterpret_cast<__m128i *>(d[0]);
#pragma omp parallel for
for (int i = 0; i < n / 16; i++)
{
const __m128i zero = _mm_set1_epi8(0);
const __m128i n100 = _mm_set1_epi16(100 << 4);
const __m128i n208 = _mm_set1_epi16(208 << 4);
const __m128i n298 = _mm_set1_epi16(298 << 4);
const __m128i n409 = _mm_set1_epi16(409 << 4);
const __m128i n516 = _mm_set1_epi16(516 << 4);
const __m128i evens_odds = _mm_setr_epi8(0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15);
// Load 8 YUY2 pixels each into two 16-byte registers
__m128i s0 = _mm_loadu_si128(&src[i * 2]);
__m128i s1 = _mm_loadu_si128(&src[i * 2 + 1]);
if (FORMAT == RS2_FORMAT_Y8)
{
// Align all Y components and output 16 pixels (16 bytes) at once
__m128i y0 = _mm_shuffle_epi8(s0, _mm_setr_epi8(1, 3, 5, 7, 9, 11, 13, 15, 0, 2, 4, 6, 8, 10, 12, 14));
__m128i y1 = _mm_shuffle_epi8(s1, _mm_setr_epi8(0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15));
_mm_storeu_si128(&dst[i], _mm_alignr_epi8(y0, y1, 8));
continue;
}
// Shuffle all Y components to the low order bytes of the register, and all U/V components to the high order bytes
const __m128i evens_odd1s_odd3s = _mm_setr_epi8(0, 2, 4, 6, 8, 10, 12, 14, 1, 5, 9, 13, 3, 7, 11, 15); // to get yyyyyyyyuuuuvvvv
__m128i yyyyyyyyuuuuvvvv0 = _mm_shuffle_epi8(s0, evens_odd1s_odd3s);
__m128i yyyyyyyyuuuuvvvv8 = _mm_shuffle_epi8(s1, evens_odd1s_odd3s);
// Retrieve all 16 Y components as 16-bit values (8 components per register))
__m128i y16__0_7 = _mm_unpacklo_epi8(yyyyyyyyuuuuvvvv0, zero); // convert to 16 bit
__m128i y16__8_F = _mm_unpacklo_epi8(yyyyyyyyuuuuvvvv8, zero); // convert to 16 bit
if (FORMAT == RS2_FORMAT_Y16)
{
// Output 16 pixels (32 bytes) at once
_mm_storeu_si128(&dst[i * 2], _mm_slli_epi16(y16__0_7, 8));
_mm_storeu_si128(&dst[i * 2 + 1], _mm_slli_epi16(y16__8_F, 8));
continue;
}
// Retrieve all 16 U and V components as 16-bit values (8 components per register)
__m128i uv = _mm_unpackhi_epi32(yyyyyyyyuuuuvvvv0, yyyyyyyyuuuuvvvv8); // uuuuuuuuvvvvvvvv
__m128i u = _mm_unpacklo_epi8(uv, uv); // uu uu uu uu uu uu uu uu u's duplicated
__m128i v = _mm_unpackhi_epi8(uv, uv); // vv vv vv vv vv vv vv vv
__m128i u16__0_7 = _mm_unpacklo_epi8(u, zero); // convert to 16 bit
__m128i u16__8_F = _mm_unpackhi_epi8(u, zero); // convert to 16 bit
__m128i v16__0_7 = _mm_unpacklo_epi8(v, zero); // convert to 16 bit
__m128i v16__8_F = _mm_unpackhi_epi8(v, zero); // convert to 16 bit
// Compute R, G, B values for first 8 pixels
__m128i c16__0_7 = _mm_slli_epi16(_mm_subs_epi16(y16__0_7, _mm_set1_epi16(16)), 4);
__m128i d16__0_7 = _mm_slli_epi16(_mm_subs_epi16(u16__0_7, _mm_set1_epi16(128)), 4); // perhaps could have done these u,v to d,e before the duplication
__m128i e16__0_7 = _mm_slli_epi16(_mm_subs_epi16(v16__0_7, _mm_set1_epi16(128)), 4);
__m128i r16__0_7 = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__0_7, n298), _mm_mulhi_epi16(e16__0_7, n409)))))); // (298 * c + 409 * e + 128) ; //
__m128i g16__0_7 = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_sub_epi16(_mm_sub_epi16(_mm_mulhi_epi16(c16__0_7, n298), _mm_mulhi_epi16(d16__0_7, n100)), _mm_mulhi_epi16(e16__0_7, n208)))))); // (298 * c - 100 * d - 208 * e + 128)
__m128i b16__0_7 = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__0_7, n298), _mm_mulhi_epi16(d16__0_7, n516)))))); // clampbyte((298 * c + 516 * d + 128) >> 8);
// Compute R, G, B values for second 8 pixels
__m128i c16__8_F = _mm_slli_epi16(_mm_subs_epi16(y16__8_F, _mm_set1_epi16(16)), 4);
__m128i d16__8_F = _mm_slli_epi16(_mm_subs_epi16(u16__8_F, _mm_set1_epi16(128)), 4); // perhaps could have done these u,v to d,e before the duplication
__m128i e16__8_F = _mm_slli_epi16(_mm_subs_epi16(v16__8_F, _mm_set1_epi16(128)), 4);
__m128i r16__8_F = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__8_F, n298), _mm_mulhi_epi16(e16__8_F, n409)))))); // (298 * c + 409 * e + 128) ; //
__m128i g16__8_F = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_sub_epi16(_mm_sub_epi16(_mm_mulhi_epi16(c16__8_F, n298), _mm_mulhi_epi16(d16__8_F, n100)), _mm_mulhi_epi16(e16__8_F, n208)))))); // (298 * c - 100 * d - 208 * e + 128)
__m128i b16__8_F = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__8_F, n298), _mm_mulhi_epi16(d16__8_F, n516)))))); // clampbyte((298 * c + 516 * d + 128) >> 8);
if (FORMAT == RS2_FORMAT_RGB8 || FORMAT == RS2_FORMAT_RGBA8)
{
// Shuffle separate R, G, B values into four registers storing four pixels each in (R, G, B, A) order
__m128i rg8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__0_7, evens_odds), _mm_shuffle_epi8(g16__0_7, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ba8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__0_7, evens_odds), _mm_set1_epi8(-1));
__m128i rgba_0_3 = _mm_unpacklo_epi16(rg8__0_7, ba8__0_7);
__m128i rgba_4_7 = _mm_unpackhi_epi16(rg8__0_7, ba8__0_7);
__m128i rg8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__8_F, evens_odds), _mm_shuffle_epi8(g16__8_F, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ba8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__8_F, evens_odds), _mm_set1_epi8(-1));
__m128i rgba_8_B = _mm_unpacklo_epi16(rg8__8_F, ba8__8_F);
__m128i rgba_C_F = _mm_unpackhi_epi16(rg8__8_F, ba8__8_F);
if (FORMAT == RS2_FORMAT_RGBA8)
{
// Store 16 pixels (64 bytes) at once
_mm_storeu_si128(&dst[i * 4], rgba_0_3);
_mm_storeu_si128(&dst[i * 4 + 1], rgba_4_7);
_mm_storeu_si128(&dst[i * 4 + 2], rgba_8_B);
_mm_storeu_si128(&dst[i * 4 + 3], rgba_C_F);
}
if (FORMAT == RS2_FORMAT_RGB8)
{
// Shuffle rgb triples to the start and end of each register
__m128i rgb0 = _mm_shuffle_epi8(rgba_0_3, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb1 = _mm_shuffle_epi8(rgba_4_7, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb2 = _mm_shuffle_epi8(rgba_8_B, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 14));
__m128i rgb3 = _mm_shuffle_epi8(rgba_C_F, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
// Align registers and store 16 pixels (48 bytes) at once
_mm_storeu_si128(&dst[i * 3], _mm_alignr_epi8(rgb1, rgb0, 4));
_mm_storeu_si128(&dst[i * 3 + 1], _mm_alignr_epi8(rgb2, rgb1, 8));
_mm_storeu_si128(&dst[i * 3 + 2], _mm_alignr_epi8(rgb3, rgb2, 12));
}
}
if (FORMAT == RS2_FORMAT_BGR8 || FORMAT == RS2_FORMAT_BGRA8)
{
// Shuffle separate R, G, B values into four registers storing four pixels each in (B, G, R, A) order
__m128i bg8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__0_7, evens_odds), _mm_shuffle_epi8(g16__0_7, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ra8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__0_7, evens_odds), _mm_set1_epi8(-1));
__m128i bgra_0_3 = _mm_unpacklo_epi16(bg8__0_7, ra8__0_7);
__m128i bgra_4_7 = _mm_unpackhi_epi16(bg8__0_7, ra8__0_7);
__m128i bg8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__8_F, evens_odds), _mm_shuffle_epi8(g16__8_F, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ra8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__8_F, evens_odds), _mm_set1_epi8(-1));
__m128i bgra_8_B = _mm_unpacklo_epi16(bg8__8_F, ra8__8_F);
__m128i bgra_C_F = _mm_unpackhi_epi16(bg8__8_F, ra8__8_F);
if (FORMAT == RS2_FORMAT_BGRA8)
{
// Store 16 pixels (64 bytes) at once
_mm_storeu_si128(&dst[i * 4], bgra_0_3);
_mm_storeu_si128(&dst[i * 4 + 1], bgra_4_7);
_mm_storeu_si128(&dst[i * 4 + 2], bgra_8_B);
_mm_storeu_si128(&dst[i * 4 + 3], bgra_C_F);
}
if (FORMAT == RS2_FORMAT_BGR8)
{
// Shuffle rgb triples to the start and end of each register
__m128i bgr0 = _mm_shuffle_epi8(bgra_0_3, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr1 = _mm_shuffle_epi8(bgra_4_7, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr2 = _mm_shuffle_epi8(bgra_8_B, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 14));
__m128i bgr3 = _mm_shuffle_epi8(bgra_C_F, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
// Align registers and store 16 pixels (48 bytes) at once
_mm_storeu_si128(&dst[i * 3], _mm_alignr_epi8(bgr1, bgr0, 4));
_mm_storeu_si128(&dst[i * 3 + 1], _mm_alignr_epi8(bgr2, bgr1, 8));
_mm_storeu_si128(&dst[i * 3 + 2], _mm_alignr_epi8(bgr3, bgr2, 12));
}
}
}
}
#else // Generic code for when SSSE3 is not available.
auto src = reinterpret_cast<const uint8_t *>(s);
auto dst = reinterpret_cast<uint8_t *>(d[0]);
for (; n; n -= 16, src += 32)
{
if (FORMAT == RS2_FORMAT_Y8)
{
uint8_t out[16] = {
src[0], src[2], src[4], src[6],
src[8], src[10], src[12], src[14],
src[16], src[18], src[20], src[22],
src[24], src[26], src[28], src[30],
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
if (FORMAT == RS2_FORMAT_Y16)
{
// Y16 is little-endian. We output Y << 8.
uint8_t out[32] = {
0, src[0], 0, src[2], 0, src[4], 0, src[6],
0, src[8], 0, src[10], 0, src[12], 0, src[14],
0, src[16], 0, src[18], 0, src[20], 0, src[22],
0, src[24], 0, src[26], 0, src[28], 0, src[30],
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
int16_t y[16] = {
src[0], src[2], src[4], src[6],
src[8], src[10], src[12], src[14],
src[16], src[18], src[20], src[22],
src[24], src[26], src[28], src[30],
}, u[16] = {
src[1], src[1], src[5], src[5],
src[9], src[9], src[13], src[13],
src[17], src[17], src[21], src[21],
src[25], src[25], src[29], src[29],
}, v[16] = {
src[3], src[3], src[7], src[7],
src[11], src[11], src[15], src[15],
src[19], src[19], src[23], src[23],
src[27], src[27], src[31], src[31],
};
uint8_t r[16], g[16], b[16];
for (int i = 0; i < 16; i++)
{
int32_t c = y[i] - 16;
int32_t d = u[i] - 128;
int32_t e = v[i] - 128;
int32_t t;
#define clamp(x) ((t=(x)) > 255 ? 255 : t < 0 ? 0 : t)
r[i] = clamp((298 * c + 409 * e + 128) >> 8);
g[i] = clamp((298 * c - 100 * d - 208 * e + 128) >> 8);
b[i] = clamp((298 * c + 516 * d + 128) >> 8);
#undef clamp
}
if (FORMAT == RS2_FORMAT_RGB8)
{
uint8_t out[16 * 3] = {
r[0], g[0], b[0], r[1], g[1], b[1],
r[2], g[2], b[2], r[3], g[3], b[3],
r[4], g[4], b[4], r[5], g[5], b[5],
r[6], g[6], b[6], r[7], g[7], b[7],
r[8], g[8], b[8], r[9], g[9], b[9],
r[10], g[10], b[10], r[11], g[11], b[11],
r[12], g[12], b[12], r[13], g[13], b[13],
r[14], g[14], b[14], r[15], g[15], b[15],
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
if (FORMAT == RS2_FORMAT_BGR8)
{
uint8_t out[16 * 3] = {
b[0], g[0], r[0], b[1], g[1], r[1],
b[2], g[2], r[2], b[3], g[3], r[3],
b[4], g[4], r[4], b[5], g[5], r[5],
b[6], g[6], r[6], b[7], g[7], r[7],
b[8], g[8], r[8], b[9], g[9], r[9],
b[10], g[10], r[10], b[11], g[11], r[11],
b[12], g[12], r[12], b[13], g[13], r[13],
b[14], g[14], r[14], b[15], g[15], r[15],
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
if (FORMAT == RS2_FORMAT_RGBA8)
{
uint8_t out[16 * 4] = {
r[0], g[0], b[0], 255, r[1], g[1], b[1], 255,
r[2], g[2], b[2], 255, r[3], g[3], b[3], 255,
r[4], g[4], b[4], 255, r[5], g[5], b[5], 255,
r[6], g[6], b[6], 255, r[7], g[7], b[7], 255,
r[8], g[8], b[8], 255, r[9], g[9], b[9], 255,
r[10], g[10], b[10], 255, r[11], g[11], b[11], 255,
r[12], g[12], b[12], 255, r[13], g[13], b[13], 255,
r[14], g[14], b[14], 255, r[15], g[15], b[15], 255,
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
if (FORMAT == RS2_FORMAT_BGRA8)
{
uint8_t out[16 * 4] = {
b[0], g[0], r[0], 255, b[1], g[1], r[1], 255,
b[2], g[2], r[2], 255, b[3], g[3], r[3], 255,
b[4], g[4], r[4], 255, b[5], g[5], r[5], 255,
b[6], g[6], r[6], 255, b[7], g[7], r[7], 255,
b[8], g[8], r[8], 255, b[9], g[9], r[9], 255,
b[10], g[10], r[10], 255, b[11], g[11], r[11], 255,
b[12], g[12], r[12], 255, b[13], g[13], r[13], 255,
b[14], g[14], r[14], 255, b[15], g[15], r[15], 255,
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
}
#endif
}
// This templated function unpacks UYVY into RGB8/RGBA8/BGR8/BGRA8, depending on the compile-time parameter FORMAT.
// It is expected that all branching outside of the loop control variable will be removed due to constant-folding.
template<rs2_format FORMAT> void unpack_uyvy(byte * const d[], const byte * s, int n)
{
assert(n % 16 == 0); // All currently supported color resolutions are multiples of 16 pixels. Could easily extend support to other resolutions by copying final n<16 pixels into a zero-padded buffer and recursively calling self for final iteration.
#ifdef __SSSE3__
auto src = reinterpret_cast<const __m128i *>(s);
auto dst = reinterpret_cast<__m128i *>(d[0]);
for (; n; n -= 16)
{
const __m128i zero = _mm_set1_epi8(0);
const __m128i n100 = _mm_set1_epi16(100 << 4);
const __m128i n208 = _mm_set1_epi16(208 << 4);
const __m128i n298 = _mm_set1_epi16(298 << 4);
const __m128i n409 = _mm_set1_epi16(409 << 4);
const __m128i n516 = _mm_set1_epi16(516 << 4);
const __m128i evens_odds = _mm_setr_epi8(0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15);
// Load 8 UYVY pixels each into two 16-byte registers
__m128i s0 = _mm_loadu_si128(src++);
__m128i s1 = _mm_loadu_si128(src++);
// Shuffle all Y components to the low order bytes of the register, and all U/V components to the high order bytes
const __m128i evens_odd1s_odd3s = _mm_setr_epi8(1, 3, 5, 7, 9, 11, 13, 15, 0, 4, 8, 12, 2, 6, 10, 14); // to get yyyyyyyyuuuuvvvv
__m128i yyyyyyyyuuuuvvvv0 = _mm_shuffle_epi8(s0, evens_odd1s_odd3s);
__m128i yyyyyyyyuuuuvvvv8 = _mm_shuffle_epi8(s1, evens_odd1s_odd3s);
// Retrieve all 16 Y components as 16-bit values (8 components per register))
__m128i y16__0_7 = _mm_unpacklo_epi8(yyyyyyyyuuuuvvvv0, zero); // convert to 16 bit
__m128i y16__8_F = _mm_unpacklo_epi8(yyyyyyyyuuuuvvvv8, zero); // convert to 16 bit
// Retrieve all 16 U and V components as 16-bit values (8 components per register)
__m128i uv = _mm_unpackhi_epi32(yyyyyyyyuuuuvvvv0, yyyyyyyyuuuuvvvv8); // uuuuuuuuvvvvvvvv
__m128i u = _mm_unpacklo_epi8(uv, uv); // uu uu uu uu uu uu uu uu u's duplicated
__m128i v = _mm_unpackhi_epi8(uv, uv); // vv vv vv vv vv vv vv vv
__m128i u16__0_7 = _mm_unpacklo_epi8(u, zero); // convert to 16 bit
__m128i u16__8_F = _mm_unpackhi_epi8(u, zero); // convert to 16 bit
__m128i v16__0_7 = _mm_unpacklo_epi8(v, zero); // convert to 16 bit
__m128i v16__8_F = _mm_unpackhi_epi8(v, zero); // convert to 16 bit
// Compute R, G, B values for first 8 pixels
__m128i c16__0_7 = _mm_slli_epi16(_mm_subs_epi16(y16__0_7, _mm_set1_epi16(16)), 4);
__m128i d16__0_7 = _mm_slli_epi16(_mm_subs_epi16(u16__0_7, _mm_set1_epi16(128)), 4); // perhaps could have done these u,v to d,e before the duplication
__m128i e16__0_7 = _mm_slli_epi16(_mm_subs_epi16(v16__0_7, _mm_set1_epi16(128)), 4);
__m128i r16__0_7 = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__0_7, n298), _mm_mulhi_epi16(e16__0_7, n409)))))); // (298 * c + 409 * e + 128) ; //
__m128i g16__0_7 = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_sub_epi16(_mm_sub_epi16(_mm_mulhi_epi16(c16__0_7, n298), _mm_mulhi_epi16(d16__0_7, n100)), _mm_mulhi_epi16(e16__0_7, n208)))))); // (298 * c - 100 * d - 208 * e + 128)
__m128i b16__0_7 = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__0_7, n298), _mm_mulhi_epi16(d16__0_7, n516)))))); // clampbyte((298 * c + 516 * d + 128) >> 8);
// Compute R, G, B values for second 8 pixels
__m128i c16__8_F = _mm_slli_epi16(_mm_subs_epi16(y16__8_F, _mm_set1_epi16(16)), 4);
__m128i d16__8_F = _mm_slli_epi16(_mm_subs_epi16(u16__8_F, _mm_set1_epi16(128)), 4); // perhaps could have done these u,v to d,e before the duplication
__m128i e16__8_F = _mm_slli_epi16(_mm_subs_epi16(v16__8_F, _mm_set1_epi16(128)), 4);
__m128i r16__8_F = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__8_F, n298), _mm_mulhi_epi16(e16__8_F, n409)))))); // (298 * c + 409 * e + 128) ; //
__m128i g16__8_F = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_sub_epi16(_mm_sub_epi16(_mm_mulhi_epi16(c16__8_F, n298), _mm_mulhi_epi16(d16__8_F, n100)), _mm_mulhi_epi16(e16__8_F, n208)))))); // (298 * c - 100 * d - 208 * e + 128)
__m128i b16__8_F = _mm_min_epi16(_mm_set1_epi16(255), _mm_max_epi16(zero, ((_mm_add_epi16(_mm_mulhi_epi16(c16__8_F, n298), _mm_mulhi_epi16(d16__8_F, n516)))))); // clampbyte((298 * c + 516 * d + 128) >> 8);
if (FORMAT == RS2_FORMAT_RGB8 || FORMAT == RS2_FORMAT_RGBA8)
{
// Shuffle separate R, G, B values into four registers storing four pixels each in (R, G, B, A) order
__m128i rg8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__0_7, evens_odds), _mm_shuffle_epi8(g16__0_7, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ba8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__0_7, evens_odds), _mm_set1_epi8(-1));
__m128i rgba_0_3 = _mm_unpacklo_epi16(rg8__0_7, ba8__0_7);
__m128i rgba_4_7 = _mm_unpackhi_epi16(rg8__0_7, ba8__0_7);
__m128i rg8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__8_F, evens_odds), _mm_shuffle_epi8(g16__8_F, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ba8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__8_F, evens_odds), _mm_set1_epi8(-1));
__m128i rgba_8_B = _mm_unpacklo_epi16(rg8__8_F, ba8__8_F);
__m128i rgba_C_F = _mm_unpackhi_epi16(rg8__8_F, ba8__8_F);
if (FORMAT == RS2_FORMAT_RGBA8)
{
// Store 16 pixels (64 bytes) at once
_mm_storeu_si128(dst++, rgba_0_3);
_mm_storeu_si128(dst++, rgba_4_7);
_mm_storeu_si128(dst++, rgba_8_B);
_mm_storeu_si128(dst++, rgba_C_F);
}
if (FORMAT == RS2_FORMAT_RGB8)
{
// Shuffle rgb triples to the start and end of each register
__m128i rgb0 = _mm_shuffle_epi8(rgba_0_3, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb1 = _mm_shuffle_epi8(rgba_4_7, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i rgb2 = _mm_shuffle_epi8(rgba_8_B, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 14));
__m128i rgb3 = _mm_shuffle_epi8(rgba_C_F, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
// Align registers and store 16 pixels (48 bytes) at once
_mm_storeu_si128(dst++, _mm_alignr_epi8(rgb1, rgb0, 4));
_mm_storeu_si128(dst++, _mm_alignr_epi8(rgb2, rgb1, 8));
_mm_storeu_si128(dst++, _mm_alignr_epi8(rgb3, rgb2, 12));
}
}
if (FORMAT == RS2_FORMAT_BGR8 || FORMAT == RS2_FORMAT_BGRA8)
{
// Shuffle separate R, G, B values into four registers storing four pixels each in (B, G, R, A) order
__m128i bg8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__0_7, evens_odds), _mm_shuffle_epi8(g16__0_7, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ra8__0_7 = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__0_7, evens_odds), _mm_set1_epi8(-1));
__m128i bgra_0_3 = _mm_unpacklo_epi16(bg8__0_7, ra8__0_7);
__m128i bgra_4_7 = _mm_unpackhi_epi16(bg8__0_7, ra8__0_7);
__m128i bg8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(b16__8_F, evens_odds), _mm_shuffle_epi8(g16__8_F, evens_odds)); // hi to take the odds which are the upper bytes we care about
__m128i ra8__8_F = _mm_unpacklo_epi8(_mm_shuffle_epi8(r16__8_F, evens_odds), _mm_set1_epi8(-1));
__m128i bgra_8_B = _mm_unpacklo_epi16(bg8__8_F, ra8__8_F);
__m128i bgra_C_F = _mm_unpackhi_epi16(bg8__8_F, ra8__8_F);
if (FORMAT == RS2_FORMAT_BGRA8)
{
// Store 16 pixels (64 bytes) at once
_mm_storeu_si128(dst++, bgra_0_3);
_mm_storeu_si128(dst++, bgra_4_7);
_mm_storeu_si128(dst++, bgra_8_B);
_mm_storeu_si128(dst++, bgra_C_F);
}
if (FORMAT == RS2_FORMAT_BGR8)
{
// Shuffle rgb triples to the start and end of each register
__m128i bgr0 = _mm_shuffle_epi8(bgra_0_3, _mm_setr_epi8(3, 7, 11, 15, 0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr1 = _mm_shuffle_epi8(bgra_4_7, _mm_setr_epi8(0, 1, 2, 4, 3, 7, 11, 15, 5, 6, 8, 9, 10, 12, 13, 14));
__m128i bgr2 = _mm_shuffle_epi8(bgra_8_B, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 3, 7, 11, 15, 10, 12, 13, 14));
__m128i bgr3 = _mm_shuffle_epi8(bgra_C_F, _mm_setr_epi8(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14, 3, 7, 11, 15));
// Align registers and store 16 pixels (48 bytes) at once
_mm_storeu_si128(dst++, _mm_alignr_epi8(bgr1, bgr0, 4));
_mm_storeu_si128(dst++, _mm_alignr_epi8(bgr2, bgr1, 8));
_mm_storeu_si128(dst++, _mm_alignr_epi8(bgr3, bgr2, 12));
}
}
}
#else // Generic code for when SSSE3 is not available.
auto src = reinterpret_cast<const uint8_t *>(s);
auto dst = reinterpret_cast<uint8_t *>(d[0]);
for (; n; n -= 16, src += 32)
{
int16_t y[16] = {
src[1], src[3], src[5], src[7],
src[9], src[11], src[13], src[15],
src[17], src[19], src[21], src[23],
src[25], src[27], src[29], src[31],
}, u[16] = {
src[0], src[0], src[4], src[4],
src[8], src[8], src[12], src[12],
src[16], src[16], src[20], src[20],
src[24], src[24], src[28], src[28],
}, v[16] = {
src[2], src[2], src[6], src[6],
src[10], src[10], src[14], src[14],
src[18], src[18], src[22], src[22],
src[26], src[26], src[30], src[30],
};
uint8_t r[16], g[16], b[16];
for (int i = 0; i < 16; i++)
{
int32_t c = y[i] - 16;
int32_t d = u[i] - 128;
int32_t e = v[i] - 128;
int32_t t;
#define clamp(x) ((t=(x)) > 255 ? 255 : t < 0 ? 0 : t)
r[i] = clamp((298 * c + 409 * e + 128) >> 8);
g[i] = clamp((298 * c - 100 * d - 208 * e + 128) >> 8);
b[i] = clamp((298 * c + 516 * d + 128) >> 8);
#undef clamp
}
if (FORMAT == RS2_FORMAT_RGB8)
{
uint8_t out[16 * 3] = {
r[0], g[0], b[0], r[1], g[1], b[1],
r[2], g[2], b[2], r[3], g[3], b[3],
r[4], g[4], b[4], r[5], g[5], b[5],
r[6], g[6], b[6], r[7], g[7], b[7],
r[8], g[8], b[8], r[9], g[9], b[9],
r[10], g[10], b[10], r[11], g[11], b[11],
r[12], g[12], b[12], r[13], g[13], b[13],
r[14], g[14], b[14], r[15], g[15], b[15],
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
if (FORMAT == RS2_FORMAT_BGR8)
{
uint8_t out[16 * 3] = {
b[0], g[0], r[0], b[1], g[1], r[1],
b[2], g[2], r[2], b[3], g[3], r[3],
b[4], g[4], r[4], b[5], g[5], r[5],
b[6], g[6], r[6], b[7], g[7], r[7],
b[8], g[8], r[8], b[9], g[9], r[9],
b[10], g[10], r[10], b[11], g[11], r[11],
b[12], g[12], r[12], b[13], g[13], r[13],
b[14], g[14], r[14], b[15], g[15], r[15],
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
if (FORMAT == RS2_FORMAT_RGBA8)
{
uint8_t out[16 * 4] = {
r[0], g[0], b[0], 255, r[1], g[1], b[1], 255,
r[2], g[2], b[2], 255, r[3], g[3], b[3], 255,
r[4], g[4], b[4], 255, r[5], g[5], b[5], 255,
r[6], g[6], b[6], 255, r[7], g[7], b[7], 255,
r[8], g[8], b[8], 255, r[9], g[9], b[9], 255,
r[10], g[10], b[10], 255, r[11], g[11], b[11], 255,
r[12], g[12], b[12], 255, r[13], g[13], b[13], 255,
r[14], g[14], b[14], 255, r[15], g[15], b[15], 255,
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
if (FORMAT == RS2_FORMAT_BGRA8)
{
uint8_t out[16 * 4] = {
b[0], g[0], r[0], 255, b[1], g[1], r[1], 255,
b[2], g[2], r[2], 255, b[3], g[3], r[3], 255,
b[4], g[4], r[4], 255, b[5], g[5], r[5], 255,
b[6], g[6], r[6], 255, b[7], g[7], r[7], 255,
b[8], g[8], r[8], 255, b[9], g[9], r[9], 255,
b[10], g[10], r[10], 255, b[11], g[11], r[11], 255,
b[12], g[12], r[12], 255, b[13], g[13], r[13], 255,
b[14], g[14], r[14], 255, b[15], g[15], r[15], 255,
};
librealsense::copy(dst, out, sizeof out);
dst += sizeof out;
continue;
}
}
#endif
}
//////////////////////////////////////
// 2-in-1 format splitting routines //
//////////////////////////////////////
template<class SOURCE, class SPLIT_A, class SPLIT_B> void split_frame(byte * const dest[], int count, const SOURCE * source, SPLIT_A split_a, SPLIT_B split_b)
{
auto a = reinterpret_cast<decltype(split_a(SOURCE())) *>(dest[0]);
auto b = reinterpret_cast<decltype(split_b(SOURCE())) *>(dest[1]);
for (int i = 0; i < count; ++i)
{
*a++ = split_a(*source);
*b++ = split_b(*source++);
}
}
struct y8i_pixel { uint8_t l, r; };
void unpack_y8_y8_from_y8i(byte * const dest[], const byte * source, int count)
{
split_frame(dest, count, reinterpret_cast<const y8i_pixel *>(source),
[](const y8i_pixel & p) -> uint8_t { return p.l; },
[](const y8i_pixel & p) -> uint8_t { return p.r; });
}
struct y12i_pixel { uint8_t rl : 8, rh : 4, ll : 4, lh : 8; int l() const { return lh << 4 | ll; } int r() const { return rh << 8 | rl; } };
void unpack_y16_y16_from_y12i_10(byte * const dest[], const byte * source, int count)
{
split_frame(dest, count, reinterpret_cast<const y12i_pixel *>(source),
[](const y12i_pixel & p) -> uint16_t { return p.l() << 6 | p.l() >> 4; }, // We want to convert 10-bit data to 16-bit data
[](const y12i_pixel & p) -> uint16_t { return p.r() << 6 | p.r() >> 4; }); // Multiply by 64 1/16 to efficiently approximate 65535/1023
}
struct f200_inzi_pixel { uint16_t z16; uint8_t y8; };
void unpack_z16_y8_from_f200_inzi(byte * const dest[], const byte * source, int count)
{
split_frame(dest, count, reinterpret_cast<const f200_inzi_pixel *>(source),
[](const f200_inzi_pixel & p) -> uint16_t { return p.z16; },
[](const f200_inzi_pixel & p) -> uint8_t { return p.y8; });
}
void unpack_z16_y16_from_f200_inzi(byte * const dest[], const byte * source, int count)
{
split_frame(dest, count, reinterpret_cast<const f200_inzi_pixel *>(source),
[](const f200_inzi_pixel & p) -> uint16_t { return p.z16; },
[](const f200_inzi_pixel & p) -> uint16_t { return p.y8 | p.y8 << 8; });
}
void unpack_z16_y8_from_sr300_inzi(byte * const dest[], const byte * source, int count)
{
auto in = reinterpret_cast<const uint16_t *>(source);
auto out_ir = reinterpret_cast<uint8_t *>(dest[1]);
for (int i = 0; i < count; ++i) *out_ir++ = *in++ >> 2;
librealsense::copy(dest[0], in, count * 2);
}
void unpack_z16_y16_from_sr300_inzi(byte * const dest[], const byte * source, int count)
{
auto in = reinterpret_cast<const uint16_t *>(source);
auto out_ir = reinterpret_cast<uint16_t *>(dest[1]);
for (int i = 0; i < count; ++i) *out_ir++ = *in++ << 6;
librealsense::copy(dest[0], in, count * 2);
}
void unpack_rgb_from_bgr(byte * const dest[], const byte * source, int count)
{
auto in = reinterpret_cast<const uint8_t *>(source);
auto out = reinterpret_cast<uint8_t *>(dest[0]);
librealsense::copy(out, in, count * 3);
for (auto i = 0; i < count; i++)
{
std::swap(out[i * 3], out[i * 3 + 2]);
}
}
#ifdef ZERO_COPY
constexpr bool requires_processing = false;
#else
constexpr bool requires_processing = true;
#endif
//////////////////////////
// Native pixel formats //
//////////////////////////
const native_pixel_format pf_fe_raw8_unpatched_kernel = { 'RAW8', 1, 1,{ { false, &copy_pixels<1>, { { RS2_STREAM_FISHEYE, RS2_FORMAT_RAW8 } } } } };
const native_pixel_format pf_raw8 = { 'GREY', 1, 1,{ { false, &copy_pixels<1>, { { RS2_STREAM_FISHEYE, RS2_FORMAT_RAW8 } } } } };
const native_pixel_format pf_rw16 = { 'RW16', 1, 2,{ { false, &copy_pixels<2>, { { RS2_STREAM_COLOR, RS2_FORMAT_RAW16 } } } } };
const native_pixel_format pf_bayer16 = { 'BYR2', 1, 2,{ { false, &copy_pixels<2>, { { RS2_STREAM_COLOR, RS2_FORMAT_RAW16 } } } } };
const native_pixel_format pf_rw10 = { 'pRAA', 1, 1,{ { false, &copy_raw10, { { RS2_STREAM_COLOR, RS2_FORMAT_RAW10 } } } } };
// W10 development format will be exposed to the user via Y8
const native_pixel_format pf_w10 = { 'W10 ', 1, 1,{ { true, &unpack_y8_from_rw10, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y8 } } } } };
const native_pixel_format pf_yuy2 = { 'YUY2', 1, 2,{ { true, &unpack_yuy2<RS2_FORMAT_RGB8 >, { { RS2_STREAM_COLOR, RS2_FORMAT_RGB8 } } },
{ true, &unpack_yuy2<RS2_FORMAT_Y16>, { { RS2_STREAM_COLOR, RS2_FORMAT_Y16 } } },
{ false, &copy_pixels<2>, { { RS2_STREAM_COLOR, RS2_FORMAT_YUYV } } },
{ true, &unpack_yuy2<RS2_FORMAT_RGBA8>, { { RS2_STREAM_COLOR, RS2_FORMAT_RGBA8 } } },
{ true, &unpack_yuy2<RS2_FORMAT_BGR8 >, { { RS2_STREAM_COLOR, RS2_FORMAT_BGR8 } } },
{ true, &unpack_yuy2<RS2_FORMAT_BGRA8>, { { RS2_STREAM_COLOR, RS2_FORMAT_BGRA8 } } } } };
const native_pixel_format pf_y8 = { 'GREY', 1, 1,{ { requires_processing, &copy_pixels<1>, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y8 } } } } };
const native_pixel_format pf_y16 = { 'Y16 ', 1, 2,{ { true, &unpack_y16_from_y16_10, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y16 } } } } };
const native_pixel_format pf_y8i = { 'Y8I ', 1, 2,{ { true, &unpack_y8_y8_from_y8i, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y8 },{ { RS2_STREAM_INFRARED, 2 }, RS2_FORMAT_Y8 } } } } };
const native_pixel_format pf_y12i = { 'Y12I', 1, 3,{ { true, &unpack_y16_y16_from_y12i_10, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y16 },{ { RS2_STREAM_INFRARED, 2 }, RS2_FORMAT_Y16 } } } } };
const native_pixel_format pf_z16 = { 'Z16 ', 1, 2,{ { requires_processing, &copy_pixels<2>, { { RS2_STREAM_DEPTH, RS2_FORMAT_Z16 } } },
// The Disparity_Z is not applicable for D4XX. TODO - merge with INVZ when confirmed
/*{ false, &copy_pixels<2>, { { RS2_STREAM_DEPTH, RS2_FORMAT_DISPARITY16 } } }*/ } };
const native_pixel_format pf_invz = { 'Z16 ', 1, 2, { { false, &copy_pixels<2>, { { RS2_STREAM_DEPTH, RS2_FORMAT_Z16 } } } } };
const native_pixel_format pf_f200_invi = { 'INVI', 1, 1, { { false, &copy_pixels<1>, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y8 } } },
{ true, &unpack_y16_from_y8, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y16 } } } } };
const native_pixel_format pf_f200_inzi = { 'INZI', 1, 3,{ { true, &unpack_z16_y8_from_f200_inzi, { { RS2_STREAM_DEPTH, RS2_FORMAT_Z16 },{ { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y8 } } },
{ true, &unpack_z16_y16_from_f200_inzi, { { RS2_STREAM_DEPTH, RS2_FORMAT_Z16 },{ { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y16 } } } } };
const native_pixel_format pf_sr300_invi = { 'INVI', 1, 2,{ { true, &unpack_y8_from_y16_10, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y8 } } },
{ true, &unpack_y16_from_y16_10, { { { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y16 } } } } };
const native_pixel_format pf_sr300_inzi = { 'INZI', 2, 2,{ { true, &unpack_z16_y8_from_sr300_inzi, { { RS2_STREAM_DEPTH, RS2_FORMAT_Z16 },{ { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y8 } } },
{ true, &unpack_z16_y16_from_sr300_inzi, { { RS2_STREAM_DEPTH, RS2_FORMAT_Z16 },{ { RS2_STREAM_INFRARED, 1 }, RS2_FORMAT_Y16 } } } } };
const native_pixel_format pf_uyvyl = { 'UYVY', 1, 2,{ { true, &unpack_uyvy<RS2_FORMAT_RGB8 >, { { RS2_STREAM_INFRARED, RS2_FORMAT_RGB8 } } },
{ false, &copy_pixels<2>, { { RS2_STREAM_INFRARED, RS2_FORMAT_UYVY } } },
{ true, &unpack_uyvy<RS2_FORMAT_RGBA8>, { { RS2_STREAM_INFRARED, RS2_FORMAT_RGBA8} } },
{ true, &unpack_uyvy<RS2_FORMAT_BGR8 >, { { RS2_STREAM_INFRARED, RS2_FORMAT_BGR8 } } },
{ true, &unpack_uyvy<RS2_FORMAT_BGRA8>, { { RS2_STREAM_INFRARED, RS2_FORMAT_BGRA8} } } } };
const native_pixel_format pf_rgb888 = { 'RGB2', 1, 2,{ { true, &unpack_rgb_from_bgr, { { RS2_STREAM_INFRARED, RS2_FORMAT_RGB8 } } } } };
const native_pixel_format pf_yuyv = { 'YUYV', 1, 2,{ { true, &unpack_yuy2<RS2_FORMAT_RGB8 >, { { RS2_STREAM_COLOR, RS2_FORMAT_RGB8 } } },
{ true, &unpack_yuy2<RS2_FORMAT_Y16>, { { RS2_STREAM_COLOR, RS2_FORMAT_Y16 } } },
{ false, &copy_pixels<2>, { { RS2_STREAM_COLOR, RS2_FORMAT_YUYV } } },
{ true, &unpack_yuy2<RS2_FORMAT_RGBA8>, { { RS2_STREAM_COLOR, RS2_FORMAT_RGBA8 } } },
{ true, &unpack_yuy2<RS2_FORMAT_BGR8 >, { { RS2_STREAM_COLOR, RS2_FORMAT_BGR8 } } },
{ true, &unpack_yuy2<RS2_FORMAT_BGRA8>, { { RS2_STREAM_COLOR, RS2_FORMAT_BGRA8 } } } } };
const native_pixel_format pf_accel_axes = { 'ACCL', 1, 1,{ { true, &unpack_accel_axes<RS2_FORMAT_MOTION_XYZ32F>, { { RS2_STREAM_ACCEL, RS2_FORMAT_MOTION_XYZ32F } } },
{ false, &unpack_hid_raw_data, { { RS2_STREAM_ACCEL, RS2_FORMAT_MOTION_RAW } } }} };
const native_pixel_format pf_gyro_axes = { 'GYRO', 1, 1,{ { true, &unpack_gyro_axes<RS2_FORMAT_MOTION_XYZ32F>, { { RS2_STREAM_GYRO, RS2_FORMAT_MOTION_XYZ32F } } },
{ false, &unpack_hid_raw_data, { { RS2_STREAM_GYRO, RS2_FORMAT_MOTION_RAW } } }} };
const native_pixel_format pf_gpio_timestamp = { 'GPIO', 1, 1,{ { false, &unpack_input_reports_data, { { { RS2_STREAM_GPIO, 1 }, RS2_FORMAT_GPIO_RAW },
{ { RS2_STREAM_GPIO, 2 }, RS2_FORMAT_GPIO_RAW },
{ { RS2_STREAM_GPIO, 3 }, RS2_FORMAT_GPIO_RAW },
{ { RS2_STREAM_GPIO, 4 }, RS2_FORMAT_GPIO_RAW }} } } };
}
#pragma pack(pop)
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mikeisted Apr 9, 2018

Compiling librealsense on an ARM processor such as the Jetson TX2 results in an error generated by /librealsense/src/image.cpp. This can be rectified by an (admittedly scruffy) edit of the code, until the issue is resolved by Intel. An issue has been raised for this.

The architecture check is commented out (lines 14 to 39) above to force a false return from the function has_avx().

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mikeisted commented Apr 9, 2018

Compiling librealsense on an ARM processor such as the Jetson TX2 results in an error generated by /librealsense/src/image.cpp. This can be rectified by an (admittedly scruffy) edit of the code, until the issue is resolved by Intel. An issue has been raised for this.

The architecture check is commented out (lines 14 to 39) above to force a false return from the function has_avx().

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agrunnet May 7, 2018

@mikeisted did you manage to use the "high accuracy" depth preset for your outdoor flights. It should help improve the false depth readings you are getting off the sky. Very impressive work!

agrunnet commented May 7, 2018

@mikeisted did you manage to use the "high accuracy" depth preset for your outdoor flights. It should help improve the false depth readings you are getting off the sky. Very impressive work!

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