SliceO_Frame::Work_GLI

This method is used to get a pointer to the "Work_GLI" buffer. (ID = ID_WORK_GLI).

Syntax

int ** Work_GLI_Get(

void

) ;

Parameters

This method does not have a parameter.

Return value

This method return a pointer to the Work_GLI Matrix or NULL if the method failed.

Remarks

Requirements

Header:

sliceO_include.hpp

Library:

sliceO_Structures.lib

Example

// ----------------------------------------------------------------------------

// Class_Frame_Update_GLI_Disp

// Create/update the GLI display image from the work image

// ----------------------------------------------------------------------------

int Class_Frame_Update_GLI_Disp( SliceO_Class *pt )

{

SliceO_Frame *frame = (SliceO_Frame *) pt ;

Region_2D update = *(frame->Region_Update_Get()) ;

// --- Get the "work GLI" buffer ---

int **work_gli = frame->Work_GLI_Get() ;

if ( ! work_gli )

return( NULL ) ;

// --- prepare memory for the Display GLI image ---

if ( ! frame->Buf_Disp_GLI ) {

SliceO_Buffer *buf_disp_gli = pt->User_Get( ID_DISP_GLI ) ;

if ( ! buf_disp_gli ) {

// --- prepare an erase buffer in the frame's user memory ---

buf_disp_gli = new SliceO_Buffer( PRIORITY_DISP_GLI ) ;

MEM_CHECK( buf_disp_gli ) ;

buf_disp_gli->Name_Set( "Disp GLI" ) ;

if ( ! buf_disp_gli->Data_New( frame->m_x * frame->m_y * sizeof(int) ) )

return( NULL ) ;

pt->User_Set( ID_DISP_GLI, buf_disp_gli ) ;

// --- The image is new, we want a complete update! ---

update.Set( 0, 0, frame->m_x-1, frame->m_y-1 ) ;

}

assert( buf_disp_gli ) ;

frame->Buf_Disp_GLI = (void *) buf_disp_gli->Data_Get() ;

}

unsigned int *disp_gli = (unsigned int *) frame->Buf_Disp_GLI ;

if ( ! disp_gli )

return( NULL ) ;

frame->Work_GLI_Lock() ;

// --- setup the GLI to Color conversion ---

if ( ! Fct_GLI_2_Color( frame->m_pix_type, frame->gli_scale, frame->gli_offset, frame->val_min, frame->val_max ) ) {

frame->Work_GLI_Unlock() ;

return( NULL ) ;

}

// --- for pixel values, compute 0.0 - 1.0 value ---

for ( int j= (int) update.min_y; j <= (int) update.max_y; j++ ) {

int k = j*frame->m_x + (int) update.min_x ;

for ( int i= (int) update.min_x; i <= (int) update.max_x; i++, k++ ) {

int GLI_val = work_gli[j][i] ;

disp_gli[k] = Fct_GLI_2_Color( GLI_val ) ;

}

frame->Work_GLI_Unlock() ;

return( 1 ) ;

}