static int check_linear(const SkDQuad& quad,
int minX, int maxX, int minY, int maxY, SkDQuad& reduction) {
if (!quad.isLinear(0, 2)) {
return 0;
}
// four are colinear: return line formed by outside
reduction[0] = quad[0];
reduction[1] = quad[2];
return reductionLineCount(reduction);
}
static int check_linear(const SkDQuad& quad,
int minX, int maxX, int minY, int maxY, SkDQuad& reduction) {
int startIndex = 0;
int endIndex = 2;
while (quad[startIndex].approximatelyEqual(quad[endIndex])) {
--endIndex;
if (endIndex == 0) {
SkDebugf("%s shouldn't get here if all four points are about equal", __FUNCTION__);
SkASSERT(0);
}
}
if (!quad.isLinear(startIndex, endIndex)) {
return 0;
}
// four are colinear: return line formed by outside
reduction[0] = quad[0];
reduction[1] = quad[2];
return reductionLineCount(reduction);
}