56    float dy;		/**< Y(v1) - Y(v0), used only during setup */  member
346    setup->ebot.dy = setup->vmid[0][1] - setup->vmin[0][1];  in setup_sort_vertices()
348    setup->emaj.dy = setup->vmax[0][1] - setup->vmin[0][1];  in setup_sort_vertices()
350    setup->etop.dy = setup->vmax[0][1] - setup->vmid[0][1];  in setup_sort_vertices()
363       const float area = (setup->emaj.dx * setup->ebot.dy -  in setup_sort_vertices()
364 			    setup->ebot.dx * setup->emaj.dy);  in setup_sort_vertices()
489    float a = setup->ebot.dy * majda - botda * setup->emaj.dy;  in tri_linear_coeff()
547    float a = setup->ebot.dy * majda - botda * setup->emaj.dy;  in tri_persp_coeff()
687    setup->emaj.dxdy = setup->emaj.dy ? setup->emaj.dx / setup->emaj.dy : .0f;  in setup_tri_edges()
692    setup->etop.dxdy = setup->etop.dy ? setup->etop.dx / setup->etop.dy : .0f;  in setup_tri_edges()
697    setup->ebot.dxdy = setup->ebot.dy ? setup->ebot.dx / setup->ebot.dy : .0f;  in setup_tri_edges()
907    const float dady = da * setup->emaj.dy * setup->oneoverarea;  in line_linear_coeff()
931    const float dady = da * setup->emaj.dy * setup->oneoverarea;  in line_persp_coeff()
965    setup->emaj.dy = setup->vmax[0][1] - setup->vmin[0][1];  in setup_line_coefficients()
968    area = setup->emaj.dx * setup->emaj.dx + setup->emaj.dy * setup->emaj.dy;  in setup_line_coefficients()
1074    int dy = y1 - y0;  in sp_setup_line()  local
1086    if (dx == 0 && dy == 0)  in sp_setup_line()
1105    if (dy < 0) {  in sp_setup_line()
1106       dy = -dy;   /* make positive */  in sp_setup_line()
1114    assert(dy >= 0);  in sp_setup_line()
1128    if (dx > dy) {  in sp_setup_line()
1131       const int errorInc = dy + dy;  in sp_setup_line()
1152       int error = errorInc - dy;  in sp_setup_line()
1153       const int errorDec = error - dy;  in sp_setup_line()
1155       for (i = 0; i < dy; i++) {  in sp_setup_line()
1300                float dx, dy, dist2, cover;  in sp_setup_point()  local
1305                dy = (iy + 0.5f) - y;  in sp_setup_point()
1306                dist2 = dx * dx + dy * dy;  in sp_setup_point()
1314                dy = (iy + 0.5f) - y;  in sp_setup_point()
1315                dist2 = dx * dx + dy * dy;  in sp_setup_point()
1323                dy = (iy + 1.5f) - y;  in sp_setup_point()
1324                dist2 = dx * dx + dy * dy;  in sp_setup_point()
1332                dy = (iy + 1.5f) - y;  in sp_setup_point()
1333                dist2 = dx * dx + dy * dy;  in sp_setup_point()