inspirit

#pragma once
#ifndef CONVOLUTION_H_INCLUDED
#define CONVOLUTION_H_INCLUDED

/**
 * Separable Convolution routines with SSE and NEON intrinsics
 * 
 * this implementation is based on OpenCV Filter Class
 * with template optimizations and SIMD intrinsic
 * 

inspirit

var intrinsic:Vector.<Number> = new Vector.<Number>(9, true);
var intrinsicInverse:Vector.<Number> = new Vector.<Number>(9, true);
		
var R:Vector.<Number> = new Vector.<Number>( 9, true );
var t:Vector.<Number> = new Vector.<Number>( 3, true );

// SVD routine
var svd:SVD = new SVD();

// input homography[9] - 3x3 Matrix

inspirit

#pragma once

#include <atomic>
#include <type_traits>

template<typename T, size_t Capacity>
struct lfstack {
    struct node_t final {
        T value;
        node_t *next;

inspirit

package ru.inspirit.asfeat.struct
{
	/**
	 * Simple but fast Dual Linked List approach
	 * Core implementation idea grabbed from Linux Kernel C source
	 * 
	 * @author Eugene Zatepyakin
	 */
	public final class LList 
	{

inspirit

function cholesky_solve(A:Vector.<Number>, size:int, b:Vector.<Number>):Boolean
{
	var col:int, row:int, col2:int;
	var val:Number;
	
	for (col = 0; col < size; ++col)
	{
		var inv_diag:Number = 1;
		var cs:int = (col * size);
		var rs:int = cs;

inspirit

void box_blur_noscale(const uint8_t* input, int32_t* out, const int w, const int h, int hwin)
{
    const int win = 2*hwin+1;
    int *_buf = (int*)alloca((w*win+w) * sizeof(int));
    int* sums = _buf + w*win;
    int* next_row = _buf;
    int* oldest_row = _buf;
    int i, j;

    memset(sums, 0, w*sizeof(int));

inspirit

var __x:uint = 123456789;
var __y:uint = 362436069;
var __z:uint = 21288629;
var __w:uint = 14921776;
var __c:uint = 0;

function rnd():uint
{
	__x = __x + 545925293;
	__y = __y ^ (__y<<13);

inspirit

/**
* LU decomposition/solve is used for NxN (square) matrices
* but using additional computations we can use LU decomposition
* to solve MxN system (since LU routines less computation expensive)
*/

// u can find LU and MatrixMath Classes at my Google repo

var lu:LU = new LU();

inspirit

// we only allow no more than 8 worker in pool
std::atomic_uint_fast8_t idle_mask = {0};

// this function is called by each thread when it is about to sleep
void register_idle(const size_t thread_id)
{
	idle_mask.fetch_or(1u << thread_id, std::memory_order_release);
}

// this function can be called from anywhere at anytime

inspirit

#import <Foundation/Foundation.h>

@interface LinkedBlockingQueue : NSObject
{
    // NOP
}

@property(nonatomic, readonly) NSUInteger count;
@property(nonatomic, readonly) NSUInteger freeCount;