Lines Matching refs:y1
45 GLfloat x1, y1; /* end */
79 * Input: (x0, y0) and (x1,y1) are the endpoints of the line.
89 compute_plane(GLfloat x0, GLfloat y0, GLfloat x1, GLfloat y1,
95 const GLfloat py = y1 - y0;
111 const GLfloat py = y1 - y0;
346 const GLfloat y1 = line->y0 + t1 * line->dy;
354 line->qy2 = y1 - line->xAdj;
356 line->qy3 = y1 + line->xAdj;
388 yBot = y1 - 3.0F * line->halfWidth;
389 yTop = y1 + line->halfWidth;
392 yBot = y1 - line->halfWidth;
393 yTop = y1 + 3.0F * line->halfWidth;
418 if (y0 < y1) {
420 yTop = y1 + line->halfWidth;
431 yBot = y1 - line->halfWidth;
