Lines Matching defs:x2
176 // helper function to determine if upper-left 2x2 of matrix is degenerate
1018 // check the 2x2 for overflow
1613 SkFixed x0, y0, x1, y1, x2, y2;
1619 x2 = srcPt[2].fX - srcPt[3].fX;
1622 /* check if abs(x2) > abs(y2) */
1623 if ( x2 > 0 ? y2 > 0 ? x2 > y2 : x2 > -y2 : y2 > 0 ? -x2 > y2 : x2 < y2) {
1624 SkFixed denom = SkMulDiv(x1, y2, x2) - y1;
1628 a1 = SkFractDiv(SkMulDiv(x0 - x1, y2, x2) - y0 + y1, denom);
1630 SkFixed denom = x1 - SkMulDiv(y1, x2, y2);
1634 a1 = SkFractDiv(x0 - x1 - SkMulDiv(y0 - y1, x2, y2), denom);
1639 SkFixed denom = y2 - SkMulDiv(x2, y1, x1);
1643 a2 = SkFractDiv(y0 - y2 - SkMulDiv(x0 - x2, y1, x1), denom);
1645 SkFixed denom = SkMulDiv(y2, x1, y1) - x2;
1649 a2 = SkFractDiv(SkMulDiv(y0 - y2, x1, y1) - x0 + x2, denom);
1746 float x0, y0, x1, y1, x2, y2;
1752 x2 = srcPt[2].fX - srcPt[3].fX;
1755 /* check if abs(x2) > abs(y2) */
1756 if ( x2 > 0 ? y2 > 0 ? x2 > y2 : x2 > -y2 : y2 > 0 ? -x2 > y2 : x2 < y2) {
1757 float denom = SkScalarMulDiv(x1, y2, x2) - y1;
1761 a1 = SkScalarDiv(SkScalarMulDiv(x0 - x1, y2, x2) - y0 + y1, denom);
1763 float denom = x1 - SkScalarMulDiv(y1, x2, y2);
1767 a1 = SkScalarDiv(x0 - x1 - SkScalarMulDiv(y0 - y1, x2, y2), denom);
1772 float denom = y2 - SkScalarMulDiv(x2, y1, x1);
1776 a2 = SkScalarDiv(y0 - y2 - SkScalarMulDiv(x0 - x2, y1, x1), denom);
1778 float denom = SkScalarMulDiv(y2, x1, y1) - x2;
1782 a2 = SkScalarDiv(SkScalarMulDiv(y0 - y2, x1, y1) - x0 + x2, denom);
1881 // ignore the translation part of the matrix, just look at 2x2 portion.
1897 // if upper left 2x2 is orthogonal save some math
