eagle3xb.cpp

#define _USE_MATH_DEFINES
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <cstring>

#include "includes/FilterCommon.h"
#include "includes/Interpolate.h"

extern "C"
{
	static unsigned char* ScaledImage = NULL;

	const int FilterID = 0x5D20;
	const char* FilterName = "Eagle 3XB";
	const char* FilterDescription = "Eagle nX Family of Filters (Variant B)";

	bool ComparisonThreshold = false;
	const int FilterScaleX = 3;
	const int FilterScaleY = 3;

	#include "includes/Init.h"

	void Apply(int argc, void** argv)
	{
		if (argc >= 3)
		{
			auto Input = ((unsigned char*)(argv[0]));
			auto srcx = *((int*)(argv[1]));
			auto srcy = *((int*)(argv[2]));

			Init(srcx, srcy);

			int C[9];
			int P[10];

			for (auto y = 0; y < srcy; y++)
			{
				for (auto x = 0; x < srcx; x++)
				{
					//   C         P
					//
					//          +-----+
					// 0 1 2    |1|2|3|
					//  \|/     |-+-+-|
					// 3-4-5 => |4|5|6|
					//  /|\     |-+-+-|
					// 6 7 8    |7|8|9|
					//          +-----+

					C[0] = CLR(Input, srcx, srcy, x, y, -1, -1);
					C[1] = CLR(Input, srcx, srcy, x, y, 0, -1);
					C[2] = CLR(Input, srcx, srcy, x, y, 1, -1);
					C[3] = CLR(Input, srcx, srcy, x, y, -1, 0);
					C[4] = CLR(Input, srcx, srcy, x, y, 0, 0);
					C[5] = CLR(Input, srcx, srcy, x, y, 1, 0);
					C[6] = CLR(Input, srcx, srcy, x, y, -1, 1);
					C[7] = CLR(Input, srcx, srcy, x, y, 0, 1);
					C[8] = CLR(Input, srcx, srcy, x, y, 1, 1);

					P[1] = (IsLike(C[0], C[1]) && IsLike(C[0], C[3])) ? Interpolate(C[0], C[1], C[3]) : C[4];
					P[2] = C[4];
					P[3] = (IsLike(C[2], C[1]) && IsLike(C[2], C[5])) ? Interpolate(C[2], C[1], C[5]) : C[4];
					P[4] = C[4];
					P[5] = C[4];
					P[6] = C[4];
					P[7] = (IsLike(C[6], C[3]) && IsLike(C[6], C[7])) ? Interpolate(C[6], C[3], C[7]) : C[4];
					P[8] = C[4];
					P[9] = (IsLike(C[8], C[5]) && IsLike(C[8], C[7])) ? Interpolate(C[8], C[5], C[7]) : C[4];

					for (auto Pixel = 1; Pixel < 10; Pixel++)
					{
						Write9RGB(ScaledImage, srcx, srcy, x, y, Pixel, P[Pixel]);
					}
				}
			}
		}
	}
}