public void Test_GetColor()
{
var lib = new AnsiColors();
output.WriteLine($"Color with Red: {lib.GetColor(AnsiColor.Red, "test")}");
}
public void Test_GetStyle()
{
var lib = new AnsiColors();
output.WriteLine($"Style with Bold: {lib.GetStyle(AnsiStyle.Bold, "test")}");
}
public static unsafe int RenderAnsi <TColor>(Stream o, IntPtr pixels,
uint w, uint h,
uint reduceLineCount = 0, int maxLineCount = -1, int maxWidth = -1,
bool borderless = false, AnsiColors colors = AnsiColors.TrueColor,
IDither?customDither = null, float customDitherScale = 1f
) where TColor : unmanaged, IPixel <TColor>
{
GetConsoleSize(out var cw, out var ch);
if (maxWidth >= 0)
{
cw = maxWidth;
}
if (maxLineCount >= 0)
{
ch = maxLineCount;
}
cw -= 1;
ch -= (int)reduceLineCount;
if (cw == 0 || ch == 0)
{
return(0);
}
var aw = cw;
var ah = ch * 2;
var pPixels = (byte *)pixels;
var span = new ReadOnlySpan <TColor>(pPixels, checked ((int)(w * h)));
using var img = Image.LoadPixelData(span, (int)w, (int)h);
img.Mutate(x => x
.Resize(aw, ah, LanczosResampler.Lanczos3)
//.Crop(aw, ah)
);
IndexedImageFrame <TColor>?indexedImg = null;
var isTrueColor = colors == AnsiColors.TrueColor;
if (!isTrueColor)
{
switch (colors)
{
case AnsiColors.Palette16: {
var opts = AnsiPalette16.Options;
if (customDither != null)
{
opts.Dither = customDither;
opts.DitherScale = customDitherScale;
}
indexedImg = AnsiPalette16
.CreatePixelSpecificQuantizer <TColor>(Configuration.Default, opts)
.QuantizeFrame(img.Frames[0], new Rectangle(0, 0, img.Width, img.Height));
break;
}
case AnsiColors.Palette256: {
var opts = AnsiPalette256.Options;
if (customDither != null)
{
opts.Dither = customDither;
opts.DitherScale = customDitherScale;
}
indexedImg = AnsiPalette256
.CreatePixelSpecificQuantizer <TColor>(Configuration.Default, opts)
.QuantizeFrame(img.Frames[0], new Rectangle(0, 0, img.Width, img.Height));
break;
}
}
}
void WriteNumberTriplet(byte b)
{
var ones = b % 10;
var tens = b / 10 % 10;
var hundreds = b / 100;
var anyHundreds = hundreds > 0;
if (anyHundreds)
{
o !.WriteByte((byte)('0' + hundreds));
}
if (anyHundreds || tens > 0)
{
o !.WriteByte((byte)('0' + tens));
}
o !.WriteByte((byte)('0' + ones));
}
// ╭
void DrawTopLeftCorner()
{
o.WriteByte(0xE2);
o.WriteByte(0x95);
o.WriteByte(0xAD);
}
// ╮
void DrawTopRightCorner()
{
o.WriteByte(0xE2);
o.WriteByte(0x95);
o.WriteByte(0xAE);
}
// ╰
void DrawBottomLeftCorner()
{
o.WriteByte(0xE2);
o.WriteByte(0x95);
o.WriteByte(0xB0);
}
// ╯
void DrawBottomRightCorner()
{
o.WriteByte(0xE2);
o.WriteByte(0x95);
o.WriteByte(0xAF);
}
// ─ x width
void DrawHorizontalFrame(int width)
{
for (var i = 0; i < width; ++i)
{
o.WriteByte(0xE2);
o.WriteByte(0x94);
o.WriteByte(0x80);
}
}
// │
void DrawVerticalFrame()
{
o.WriteByte(0xE2);
o.WriteByte(0x94);
o.WriteByte(0x82);
}
if (!borderless)
{
DrawTopLeftCorner();
DrawHorizontalFrame(aw + 1);
DrawTopRightCorner();
o.WriteByte((byte)'\n');
}
var lastY = ah & ~1;
for (var y = 0; y < lastY; y += 2)
{
if (!borderless)
{
DrawVerticalFrame();
}
// write 2 lines at a time
var haveL = y + 1 < ah;
var u = isTrueColor
? img.GetPixelRowSpan(y)
: default;
var l = haveL && isTrueColor
? img.GetPixelRowSpan(y + 1)
: default;
var up = !isTrueColor
? indexedImg !.GetPixelRowSpan(y)
: default;
