Вот кусок кода из самой библиотеки. Не пойму, где здесь указание на то, что данные выровнены.
Код:
float32x4x4_t iMatrixLeft = *(float32x4x4_t *)&matrixLeft;
float32x4x4_t iMatrixRight = *(float32x4x4_t *)&matrixRight;
float32x4x4_t m;
m.val[0] = vmulq_n_f32(iMatrixLeft.val[0], vgetq_lane_f32(iMatrixRight.val[0], 0));
m.val[1] = vmulq_n_f32(iMatrixLeft.val[0], vgetq_lane_f32(iMatrixRight.val[1], 0));
m.val[2] = vmulq_n_f32(iMatrixLeft.val[0], vgetq_lane_f32(iMatrixRight.val[2], 0));
m.val[3] = vmulq_n_f32(iMatrixLeft.val[0], vgetq_lane_f32(iMatrixRight.val[3], 0));
m.val[0] = vmlaq_n_f32(m.val[0], iMatrixLeft.val[1], vgetq_lane_f32(iMatrixRight.val[0], 1));
m.val[1] = vmlaq_n_f32(m.val[1], iMatrixLeft.val[1], vgetq_lane_f32(iMatrixRight.val[1], 1));
m.val[2] = vmlaq_n_f32(m.val[2], iMatrixLeft.val[1], vgetq_lane_f32(iMatrixRight.val[2], 1));
m.val[3] = vmlaq_n_f32(m.val[3], iMatrixLeft.val[1], vgetq_lane_f32(iMatrixRight.val[3], 1));
m.val[0] = vmlaq_n_f32(m.val[0], iMatrixLeft.val[2], vgetq_lane_f32(iMatrixRight.val[0], 2));
m.val[1] = vmlaq_n_f32(m.val[1], iMatrixLeft.val[2], vgetq_lane_f32(iMatrixRight.val[1], 2));
m.val[2] = vmlaq_n_f32(m.val[2], iMatrixLeft.val[2], vgetq_lane_f32(iMatrixRight.val[2], 2));
m.val[3] = vmlaq_n_f32(m.val[3], iMatrixLeft.val[2], vgetq_lane_f32(iMatrixRight.val[3], 2));
m.val[0] = vmlaq_n_f32(m.val[0], iMatrixLeft.val[3], vgetq_lane_f32(iMatrixRight.val[0], 3));
m.val[1] = vmlaq_n_f32(m.val[1], iMatrixLeft.val[3], vgetq_lane_f32(iMatrixRight.val[1], 3));
m.val[2] = vmlaq_n_f32(m.val[2], iMatrixLeft.val[3], vgetq_lane_f32(iMatrixRight.val[2], 3));
m.val[3] = vmlaq_n_f32(m.val[3], iMatrixLeft.val[3], vgetq_lane_f32(iMatrixRight.val[3], 3));
return *(GLKMatrix4 *)&m;
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