Lines Matching refs:alpha
152 float alpha = 0.5f * acos_icc_invq[icc];
153 float beta = alpha * (c1 - c2) * (float)M_SQRT1_2;
154 HA[iid][icc][0] = c2 * cosf(beta + alpha);
155 HA[iid][icc][1] = c1 * cosf(beta - alpha);
156 HA[iid][icc][2] = c2 * sinf(beta + alpha);
157 HA[iid][icc][3] = c1 * sinf(beta - alpha);
159 float alpha, gamma, mu, rho;
162 alpha = 0.5f * atan2f(2.0f * c * rho, c*c - 1.0f);
166 if (alpha < 0) alpha += M_PI/2;
167 alpha_c = cosf(alpha);
168 alpha_s = sinf(alpha);