# include "scicos_block4.h" # include "../machine.h" #include <stdio.h> extern int C2F(zgesvd)(); #if WIN32 #define NULL 0 #endif #ifndef min #define min(a,b) ((a) <= (b) ? (a) : (b)) #endif #ifndef max #define max(a,b) ((a) >= (b) ? (a) : (b)) #endif typedef struct { double *LA; double *LX; double *LU; double *LVT; double *dwork; double *rwork; } mat_sing_struct ; void matz_sing(scicos_block *block,int flag) { double *ur; double *ui; double *yr; double *yi; int nu,mu; int info; int i,rw,lwork; mat_sing_struct *ptr; mu=GetInPortRows(block,1); nu=GetInPortCols(block,1); ur=GetRealInPortPtrs(block,1); ui=GetImagInPortPtrs(block,1); yr=GetRealOutPortPtrs(block,1); yi=GetImagOutPortPtrs(block,1); lwork=max(3*min(mu,nu)+max(mu,nu),5*min(mu,nu)-4); rw=5*min(mu,nu); /*init : initialization*/ if (flag==4) {if((*(block->work)=(mat_sing_struct*) scicos_malloc(sizeof(mat_sing_struct)))==NULL) {set_block_error(-16); return;} ptr=*(block->work); if((ptr->LA=(double*) scicos_malloc(sizeof(double)*(2*mu*nu)))==NULL) {set_block_error(-16); scicos_free(ptr); return;} if((ptr->LU=(double*) scicos_malloc(sizeof(double)*(2*mu*mu)))==NULL) {set_block_error(-16); scicos_free(ptr->LA); scicos_free(ptr); return;} if((ptr->LVT=(double*) scicos_malloc(sizeof(double)*(2*nu*nu)))==NULL) {set_block_error(-16); scicos_free(ptr->LU); scicos_free(ptr->LA); scicos_free(ptr); return;} if((ptr->LX=(double*) scicos_malloc(sizeof(double)*(2*mu)))==NULL) {set_block_error(-16); scicos_free(ptr->LVT); scicos_free(ptr->LU); scicos_free(ptr->LA); scicos_free(ptr); return;} if((ptr->dwork=(double*) scicos_malloc(sizeof(double)*2*lwork))==NULL) {set_block_error(-16); scicos_free(ptr->LX); scicos_free(ptr->LVT); scicos_free(ptr->LU); scicos_free(ptr->LA); scicos_free(ptr); return;} if((ptr->rwork=(double*) scicos_malloc(sizeof(double)*2*rw))==NULL) {set_block_error(-16); scicos_free(ptr->dwork); scicos_free(ptr->LX); scicos_free(ptr->LVT); scicos_free(ptr->LU); scicos_free(ptr->LA); scicos_free(ptr); return;} } /* Terminaison */ else if (flag==5) {ptr=*(block->work); if((ptr->rwork)!=NULL){ scicos_free(ptr->LA); scicos_free(ptr->LU); scicos_free(ptr->LX); scicos_free(ptr->LVT); scicos_free(ptr->rwork); scicos_free(ptr->dwork); scicos_free(ptr); return;} } else { ptr=*(block->work); for (i=0;i<(mu*nu);i++) {ptr->LA[2*i]=ur[i]; ptr->LA[2*i+1]=ui[i];} C2F(zgesvd)("A","A",&mu,&nu,ptr->LA,&mu,yr,ptr->LU,&mu,ptr->LVT,&nu,ptr->dwork,&lwork,ptr->rwork,&info); if (info !=0) {if (flag!=6) {set_block_error(-7); return;}} } }