void CalculateSpriteBased(Sprite sprite, BorderMode borderMode)
{
var lastSprite = _lastUsedSprite;
_lastUsedSprite = sprite;
var spriteErrors = Diagnostics.CheckSprite(sprite);
if (spriteErrors != Errors.NoError)
{
if (lastSprite != sprite)
{
WarnSpriteErrors(spriteErrors);
}
CalculateSolidFill();
return;
}
if (!sprite)
{
CalculateSolidFill();
return;
}
FillCommonParameters();
var spriteRect = Mathr.Move(Mathr.ToVector(sprite.rect), sprite.textureRect.position - sprite.rect.position - sprite.textureRectOffset);
var textureRect = Mathr.ToVector(sprite.textureRect);
var textureBorder = Mathr.BorderOf(spriteRect, textureRect);
var textureSize = Vector2.zero;
if (sprite.texture != null)
{
textureSize = new Vector2(sprite.texture.width, sprite.texture.height);
}
var fullMaskRect = LocalMaskRect(Vector4.zero);
_parameters.maskRectUV = Mathr.Div(textureRect, textureSize);
if (borderMode == BorderMode.Simple)
{
var textureRectInFullRect = Mathr.Div(textureBorder, Mathr.Size(spriteRect));
_parameters.maskRect = Mathr.ApplyBorder(fullMaskRect, Mathr.Mul(textureRectInFullRect, Mathr.Size(fullMaskRect)));
}
else
{
_parameters.maskRect = Mathr.ApplyBorder(fullMaskRect, textureBorder * GraphicToCanvasScale(sprite));
var fullMaskRectUV = Mathr.Div(spriteRect, textureSize);
var adjustedBorder = AdjustBorders(sprite.border * GraphicToCanvasScale(sprite), fullMaskRect);
_parameters.maskBorder = LocalMaskRect(adjustedBorder);
_parameters.maskBorderUV = Mathr.ApplyBorder(fullMaskRectUV, Mathr.Div(sprite.border, textureSize));
}
_parameters.texture = sprite.texture;
_parameters.borderMode = borderMode;
if (borderMode == BorderMode.Tiled)
{
_parameters.tileRepeat = MaskRepeat(sprite, _parameters.maskBorder);
}
}
static Vector4 AdjustBorders(Vector4 border, Vector4 rect)
{
// Copied from Unity's Image.
var size = Mathr.Size(rect);
for (int axis = 0; axis <= 1; axis++)
{
// If the rect is smaller than the combined borders, then there's not room for
// the borders at their normal size. In order to avoid artefacts with overlapping
// borders, we scale the borders down to fit.
float combinedBorders = border[axis] + border[axis + 2];
if (size[axis] < combinedBorders && combinedBorders != 0)
{
float borderScaleRatio = size[axis] / combinedBorders;
border[axis] *= borderScaleRatio;
border[axis + 2] *= borderScaleRatio;
}
}
return(border);
}
Vector2 MaskRepeat(Sprite sprite, Vector4 centralPart)
{
var textureCenter = Mathr.ApplyBorder(Mathr.ToVector(sprite.textureRect), sprite.border);
return(Mathr.Div(Mathr.Size(centralPart) * GraphicToCanvasScale(sprite), Mathr.Size(textureCenter)));
}
void CalculateSpriteBased(Sprite sprite, BorderMode borderMode)
{
var lastSprite = _lastUsedSprite;
_lastUsedSprite = sprite;
var spriteErrors = Diagnostics.CheckSprite(sprite);
if (spriteErrors != Errors.NoError)
{
if (lastSprite != sprite)
{
WarnSpriteErrors(spriteErrors);
}
CalculateSolidFill();
return;
}
if (!sprite)
{
CalculateSolidFill();
return;
}
FillCommonParameters();
var inner = DataUtility.GetInnerUV(sprite);
var outer = DataUtility.GetOuterUV(sprite);
var padding = DataUtility.GetPadding(sprite);
var fullMaskRect = LocalMaskRect(Vector4.zero);
_parameters.maskRectUV = outer;
if (borderMode == BorderMode.Simple)
{
var normalizedPadding = Mathr.Div(padding, sprite.rect.size);
_parameters.maskRect = Mathr.ApplyBorder(fullMaskRect, Mathr.Mul(normalizedPadding, Mathr.Size(fullMaskRect)));
}
else
{
_parameters.maskRect = Mathr.ApplyBorder(fullMaskRect, padding * SpriteToCanvasScale(sprite));
var adjustedBorder = AdjustBorders(sprite.border * SpriteToCanvasScale(sprite), fullMaskRect);
_parameters.maskBorder = LocalMaskRect(adjustedBorder);
_parameters.maskBorderUV = inner;
}
_parameters.texture = sprite.texture;
_parameters.borderMode = borderMode;
if (borderMode == BorderMode.Tiled)
{
_parameters.tileRepeat = MaskRepeat(sprite, _parameters.maskBorder);
}
}