122     FL2FXCONST_DBL(7.775862990872099e-001),
123     FL2FXCONST_DBL(7.814919928673978e-001),
124     FL2FXCONST_DBL(7.834450483314648e-001),
125     FL2FXCONST_DBL(7.844216021392089e-001),
126     FL2FXCONST_DBL(7.849098823026687e-001),
127     FL2FXCONST_DBL(7.851540227918509e-001),
128     FL2FXCONST_DBL(7.852760930873737e-001),
129     FL2FXCONST_DBL(7.853371282415015e-001),
130     FL2FXCONST_DBL(7.853676458193612e-001),
131     FL2FXCONST_DBL(7.853829046083906e-001),
132     FL2FXCONST_DBL(7.853905340029177e-001),
133     FL2FXCONST_DBL(7.853943487001828e-001),
134     FL2FXCONST_DBL(7.853962560488155e-001),
135     FL2FXCONST_DBL(7.853972097231319e-001),
136     FL2FXCONST_DBL(7.853976865602901e-001),
137     FL2FXCONST_DBL(7.853979249788692e-001),
138     FL2FXCONST_DBL(7.853980441881587e-001),
139     FL2FXCONST_DBL(7.853981037928035e-001),
140     FL2FXCONST_DBL(7.853981335951259e-001)
149   FIXP_DBL ret = FL2FXCONST_DBL(-1.0f);  in fixp_atan2()
154   if (y > FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
155     if (x > FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
157     } else if (x < FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
160       q = FL2FXCONST_DBL(+1.0f);         /* y/x = pos/zero = +Inf */  in fixp_atan2()
163   } else if (y < FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
164     if (x > FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
166     } else if (x < FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
169       q = FL2FXCONST_DBL(-1.0f);         /* y/x = neg/zero = -Inf */  in fixp_atan2()
173     q = FL2FXCONST_DBL(0.0f);  in fixp_atan2()
188     if (q > FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
192       at = FL2FXCONST_DBL(+M_PI / 2 / ATO_SCALE);  in fixp_atan2()
194     } else if (q < FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
198       at = FL2FXCONST_DBL(-M_PI / 2 / ATO_SCALE);  in fixp_atan2()
201       at = FL2FXCONST_DBL(0.0f);  in fixp_atan2()
217   if (x > FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
219   } else if (x < FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
220     if (y >= FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
221       ret = at2 + FL2FXCONST_DBL(M_PI / AT2O_SCALE);  in fixp_atan2()
223       ret = at2 - FL2FXCONST_DBL(M_PI / AT2O_SCALE);  in fixp_atan2()
227     if (y > FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
228       ret = FL2FXCONST_DBL(+M_PI / 2 / AT2O_SCALE);  in fixp_atan2()
229     } else if (y < FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
230       ret = FL2FXCONST_DBL(-M_PI / 2 / AT2O_SCALE);  in fixp_atan2()
231     } else if (y == FL2FXCONST_DBL(0.0f)) {  in fixp_atan2()
232       ret = FL2FXCONST_DBL(0.0f);  in fixp_atan2()
252   FDK_ASSERT(FL2FXCONST_DBL(1.0 / 64.0) == Q(Q_ATANINP));  in fixp_atan()
254   if (x < FL2FXCONST_DBL(1.0 / 64.0))  in fixp_atan()
268     temp = fMultAddDiv2((FL2FXCONST_DBL(0.1449824901444650f) >> 1), x2,  in fixp_atan()
269                         FL2FXCONST_DBL(-0.0382544649702990));  in fixp_atan()
270     temp = fMultAddDiv2((FL2FXCONST_DBL(-0.3205332923816640f) >> 2), x2, temp);  in fixp_atan()
271     temp = fMultAddDiv2((FL2FXCONST_DBL(0.9991334482227801f) >> 3), x2, temp);  in fixp_atan()
273   } else if (x < FL2FXCONST_DBL(1.28 / 64.0)) {  in fixp_atan()
275     FIXP_DBL PI_BY_4 = FL2FXCONST_DBL(3.1415926 / 4.0) >> 1; /* pi/4 in q30 */  in fixp_atan()
277     delta_fix = (x - FL2FXCONST_DBL(1.0 / 64.0)) << 5; /* q30 */  in fixp_atan()