/*
* input kernel area naming convention:
* -------------
| A | B | C |
| ----|---|---|
| D | E | F | //input pixel is at position E
| ----|---|---|
| G | H | I |
| -------------
*/
private static void _ScalePixel(
IScaler scaler,
RotationDegree rotDeg,
Kernel_3X3 ker,
sPixel[] trg,
int trgi,
int trgWidth,
byte blendInfo, //result of preprocessing all four corners of pixel "e"
IColorEq scalePixelColorEq,
IColorDist scalePixelColorDist,
OutputMatrix outputMatrix
)
{
//int a = kernel._[Rot._[(0 << 2) + rotDeg]];
var b = ker._[Rot._[(1 << 2) + (int)rotDeg]];
var c = ker._[Rot._[(2 << 2) + (int)rotDeg]];
var d = ker._[Rot._[(3 << 2) + (int)rotDeg]];
var e = ker._[Rot._[(4 << 2) + (int)rotDeg]];
var f = ker._[Rot._[(5 << 2) + (int)rotDeg]];
var g = ker._[Rot._[(6 << 2) + (int)rotDeg]];
var h = ker._[Rot._[(7 << 2) + (int)rotDeg]];
var i = ker._[Rot._[(8 << 2) + (int)rotDeg]];
var blend = BlendInfo.Rotate(blendInfo, rotDeg);
if (BlendInfo.GetBottomR(blend) == BlendType.BlendNone)
{
return;
}
var eq = scalePixelColorEq;
var dist = scalePixelColorDist;
bool doLineBlend;
if (BlendInfo.GetBottomR(blend) >= BlendType.BlendDominant)
{
doLineBlend = true;
}
//make sure there is no second blending in an adjacent
//rotation for this pixel: handles insular pixels, mario eyes
//but support double-blending for 90? corners
else if (BlendInfo.GetTopR(blend) != BlendType.BlendNone && !eq._(e, g))
{
doLineBlend = false;
}
else if (BlendInfo.GetBottomL(blend) != BlendType.BlendNone && !eq._(e, c))
{
doLineBlend = false;
}
//no full blending for L-shapes; blend corner only (handles "mario mushroom eyes")
else if (eq._(g, h) && eq._(h, i) && eq._(i, f) && eq._(f, c) && !eq._(e, i))
{
doLineBlend = false;
}
else
{
doLineBlend = true;
}
//choose most similar color
var px = dist._(e, f) <= dist._(e, h) ? f : h;
var output = outputMatrix;
output.Move(rotDeg, trgi);
if (!doLineBlend)
{
scaler.BlendCorner(px, output);
return;
}
//test sample: 70% of values max(fg, hc) / min(fg, hc)
//are between 1.1 and 3.7 with median being 1.9
var fg = dist._(f, g);
var hc = dist._(h, c);
var haveShallowLine = _CONFIGURATION.steepDirectionThreshold * fg <= hc && e != g && d != g;
var haveSteepLine = _CONFIGURATION.steepDirectionThreshold * hc <= fg && e != c && b != c;
if (haveShallowLine)
{
if (haveSteepLine)
{
scaler.BlendLineSteepAndShallow(px, output);
}
else
{
scaler.BlendLineShallow(px, output);
}
}
else
{
if (haveSteepLine)
{
scaler.BlendLineSteep(px, output);
}
else
{
scaler.BlendLineDiagonal(px, output);
}
}
}
/*
* input kernel area naming convention:
* -------------
| A | B | C |
| ----|---|---|
| D | E | F | //input pixel is at position E
| ----|---|---|
| G | H | I |
| -------------
| blendInfo: result of preprocessing all four corners of pixel "e"
*/
private void ScalePixel(IScaler scaler, int rotDeg, Kernel3x3 ker, int trgi, char blendInfo)
{
// int a = ker._[Rot._[(0 << 2) + rotDeg]];
var b = ker._[Rot._[(1 << 2) + rotDeg]];
var c = ker._[Rot._[(2 << 2) + rotDeg]];
var d = ker._[Rot._[(3 << 2) + rotDeg]];
var e = ker._[Rot._[(4 << 2) + rotDeg]];
var f = ker._[Rot._[(5 << 2) + rotDeg]];
var g = ker._[Rot._[(6 << 2) + rotDeg]];
var h = ker._[Rot._[(7 << 2) + rotDeg]];
var i = ker._[Rot._[(8 << 2) + rotDeg]];
var blend = blendInfo.Rotate((RotationDegree)rotDeg);
if ((BlendType)blend.GetBottomR() == BlendType.None)
{
return;
}
var eq = _colorEqualizer;
var dist = _colorDistance;
bool doLineBlend;
if (blend.GetBottomR() >= (char)BlendType.Dominant)
{
doLineBlend = true;
}
//make sure there is no second blending in an adjacent
//rotation for this pixel: handles insular pixels, mario eyes
//but support double-blending for 90� corners
else if (blend.GetTopR() != (char)BlendType.None && !eq.IsColorEqual(e, g))
{
doLineBlend = false;
}
else if (blend.GetBottomL() != (char)BlendType.None && !eq.IsColorEqual(e, c))
{
doLineBlend = false;
}
//no full blending for L-shapes; blend corner only (handles "mario mushroom eyes")
else if (eq.IsColorEqual(g, h) && eq.IsColorEqual(h, i) && eq.IsColorEqual(i, f) && eq.IsColorEqual(f, c) && !eq.IsColorEqual(e, i))
{
doLineBlend = false;
}
else
{
doLineBlend = true;
}
//choose most similar color
var px = dist.DistYCbCr(e, f) <= dist.DistYCbCr(e, h) ? f : h;
var out_ = _outputMatrix;
out_.Move(rotDeg, trgi);
if (!doLineBlend)
{
scaler.BlendCorner(px, out_);
return;
}
//test sample: 70% of values max(fg, hc) / min(fg, hc)
//are between 1.1 and 3.7 with median being 1.9
var fg = dist.DistYCbCr(f, g);
var hc = dist.DistYCbCr(h, c);
var haveShallowLine = _cfg.SteepDirectionThreshold * fg <= hc && e != g && d != g;
var haveSteepLine = _cfg.SteepDirectionThreshold * hc <= fg && e != c && b != c;
if (haveShallowLine)
{
if (haveSteepLine)
{
scaler.BlendLineSteepAndShallow(px, out_);
}
else
{
scaler.BlendLineShallow(px, out_);
}
}
else
{
if (haveSteepLine)
{
scaler.BlendLineSteep(px, out_);
}
else
{
scaler.BlendLineDiagonal(px, out_);
}
}
}
/*
input kernel area naming convention:
-------------
| A | B | C |
----|---|---|
| D | E | F | //input pixel is at position E
----|---|---|
| G | H | I |
-------------
*/
private static void _ScalePixel(
IScaler scaler,
RotationDegree rotDeg,
Kernel_3X3 ker,
sPixel[] trg,
int trgi,
int trgWidth,
byte blendInfo,//result of preprocessing all four corners of pixel "e"
IColorEq scalePixelColorEq,
IColorDist scalePixelColorDist,
OutputMatrix outputMatrix
) {
//int a = kernel._[Rot._[(0 << 2) + rotDeg]];
var b = ker._[Rot._[(1 << 2) + (int)rotDeg]];
var c = ker._[Rot._[(2 << 2) + (int)rotDeg]];
var d = ker._[Rot._[(3 << 2) + (int)rotDeg]];
var e = ker._[Rot._[(4 << 2) + (int)rotDeg]];
var f = ker._[Rot._[(5 << 2) + (int)rotDeg]];
var g = ker._[Rot._[(6 << 2) + (int)rotDeg]];
var h = ker._[Rot._[(7 << 2) + (int)rotDeg]];
var i = ker._[Rot._[(8 << 2) + (int)rotDeg]];
var blend = BlendInfo.Rotate(blendInfo, rotDeg);
if (BlendInfo.GetBottomR(blend) == BlendType.BlendNone)
return;
var eq = scalePixelColorEq;
var dist = scalePixelColorDist;
bool doLineBlend;
if (BlendInfo.GetBottomR(blend) >= BlendType.BlendDominant)
doLineBlend = true;
//make sure there is no second blending in an adjacent
//rotation for this pixel: handles insular pixels, mario eyes
//but support double-blending for 90? corners
else if (BlendInfo.GetTopR(blend) != BlendType.BlendNone && !eq._(e, g))
doLineBlend = false;
else if (BlendInfo.GetBottomL(blend) != BlendType.BlendNone && !eq._(e, c))
doLineBlend = false;
//no full blending for L-shapes; blend corner only (handles "mario mushroom eyes")
else if (eq._(g, h) && eq._(h, i) && eq._(i, f) && eq._(f, c) && !eq._(e, i))
doLineBlend = false;
else
doLineBlend = true;
//choose most similar color
var px = dist._(e, f) <= dist._(e, h) ? f : h;
var output = outputMatrix;
output.Move(rotDeg, trgi);
if (!doLineBlend) {
scaler.BlendCorner(px, output);
return;
}
//test sample: 70% of values max(fg, hc) / min(fg, hc)
//are between 1.1 and 3.7 with median being 1.9
var fg = dist._(f, g);
var hc = dist._(h, c);
var haveShallowLine = _CONFIGURATION.steepDirectionThreshold * fg <= hc && e != g && d != g;
var haveSteepLine = _CONFIGURATION.steepDirectionThreshold * hc <= fg && e != c && b != c;
if (haveShallowLine) {
if (haveSteepLine)
scaler.BlendLineSteepAndShallow(px, output);
else
scaler.BlendLineShallow(px, output);
} else {
if (haveSteepLine)
scaler.BlendLineSteep(px, output);
else
scaler.BlendLineDiagonal(px, output);
}
}