public static void Paint(StrokeVector stroke, float brushAlpha, ImageMeta image, BrushConfig bc, PlaytimePainter painter)
{
if (image?.Pixels == null)
{
return;
}
var uvCoords = stroke.uvFrom;
brAlpha = brushAlpha;
bc.PrepareCpuBlit(image);
var iHalf = (int)(half);
Vector2 offset;
var tmp = image.UvToPixelNumber(uvCoords, out offset);
var smooth = bc.GetBrushType(true) != BrushTypePixel.Inst;
if (smooth)
{
iHalf += 1;
offset = Vector2.zero;
}
var hf = half - 0.5f;
var halfFromX = Mathf.RoundToInt(-hf + offset.x);
var halfFromY = Mathf.RoundToInt(-hf + offset.y);
var halfToX = Mathf.RoundToInt(hf + offset.x);
var halfToY = Mathf.RoundToInt(hf + offset.y);
var fromX = tmp.x + halfFromX;
tmp.y += halfFromY;
var pixels = image.Pixels;
for (y = halfFromY; y <= halfToY; y++)
{
tmp.x = fromX;
for (x = halfFromX; x <= halfToX; x++)
{
if (alphaMode())
{
blitMode(ref pixels[image.PixelNo(tmp)]);
}
tmp.x += 1;
}
tmp.y += 1;
}
}
public bool PaintTexture2D(StrokeVector stroke, float brushAlpha, ImageMeta image, BrushConfig bc, PlaytimePainter painter)
{
if (!painter.IsAtlased())
{
return(false);
}
var uvCoords = stroke.uvFrom;
var atlasedSection = GetAtlasedSection();
sectorSize = image.width / atlasRows;
atlasSector.From(atlasedSection * sectorSize);
BlitFunctions.brAlpha = brushAlpha;
BlitFunctions.half = (bc.Size(false)) / 2;
var iHalf = Mathf.FloorToInt(BlitFunctions.half - 0.5f);
var smooth = bc.GetBrushType(true) != BrushTypePixel.Inst;
if (smooth)
{
BlitFunctions.alphaMode = BlitFunctions.CircleAlpha;
}
else
{
BlitFunctions.alphaMode = BlitFunctions.NoAlpha;
}
BlitFunctions.blitMode = bc.GetBlitMode(true).BlitFunctionTex2D(image);
if (smooth)
{
iHalf += 1;
}
BlitFunctions.alpha = 1;
BlitFunctions.r = BrushExtensions.HasFlag(bc.mask, BrushMask.R);
BlitFunctions.g = BrushExtensions.HasFlag(bc.mask, BrushMask.G);
BlitFunctions.b = BrushExtensions.HasFlag(bc.mask, BrushMask.B);
BlitFunctions.a = BrushExtensions.HasFlag(bc.mask, BrushMask.A);
BlitFunctions.cSrc = bc.Color;
var tmp = image.UvToPixelNumber(uvCoords);
var fromX = tmp.x - iHalf;
tmp.y -= iHalf;
var pixels = image.Pixels;
for (BlitFunctions.y = -iHalf; BlitFunctions.y < iHalf + 1; BlitFunctions.y++)
{
tmp.x = fromX;
for (BlitFunctions.x = -iHalf; BlitFunctions.x < iHalf + 1; BlitFunctions.x++)
{
if (BlitFunctions.alphaMode())
{
var sx = tmp.x - atlasSector.x;
var sy = tmp.y - atlasSector.y;
sx %= sectorSize;
if (sx < 0)
{
sx += sectorSize;
}
sy %= sectorSize;
if (sy < 0)
{
sy += sectorSize;
}
BlitFunctions.blitMode(ref pixels[((atlasSector.y + sy)) * image.width + (atlasSector.x + sx)]);
}
tmp.x += 1;
}
tmp.y += 1;
}
return(true);
}
