Lines Matching refs:y0
17 // This correctly favors the lower-pixel when y0 is on a 1/2 pixel boundary
18 #define SkEdge_Compute_DY(top, y0) ((top << 6) + 32 - (y0))
89 SkFDot6 x0, y0, x1, y1;
94 y0 = int(p0.fY * scale);
101 if (y0 > y1) {
103 SkTSwap(y0, y1);
107 int top = SkFDot6Round(y0);
115 SkFixed slope = SkFDot6Div(x1 - x0, y1 - y0);
116 const int dy = SkEdge_Compute_DY(top, y0);