Ejemplos de CV_CAST_16S en C++ (Cpp)

Ejemplo n.º 1

Archivo: cvsmooth.cpp Proyecto: cybertk/opencv

static void
icvSumCol_32s16s( const int** src, short* dst,
                  int dst_step, int count, void* params )
{
    CvBoxFilter* state = (CvBoxFilter*)params;
    int ksize = state->get_kernel_size().height;
    int ktotal = ksize*state->get_kernel_size().width;
    int i, width = state->get_width();
    int cn = CV_MAT_CN(state->get_src_type());
    int* sum = (int*)state->get_sum_buf();
    int* _sum_count = state->get_sum_count_ptr();
    int sum_count = *_sum_count;

    dst_step /= sizeof(dst[0]);
    width *= cn;
    src += sum_count;
    count += ksize - 1 - sum_count;

    for( ; count--; src++ )
    {
        const int* sp = src[0];
        if( sum_count+1 < ksize )
        {
            for( i = 0; i <= width - 2; i += 2 )
            {
                int s0 = sum[i] + sp[i], s1 = sum[i+1] + sp[i+1];
                sum[i] = s0; sum[i+1] = s1;
            }

            for( ; i < width; i++ )
                sum[i] += sp[i];

            sum_count++;
        }
        else if( ktotal < 128 )
        {
            const int* sm = src[-ksize+1];
            for( i = 0; i <= width - 2; i += 2 )
            {
                int s0 = sum[i] + sp[i], s1 = sum[i+1] + sp[i+1];
                dst[i] = (short)s0; dst[i+1] = (short)s1;
                s0 -= sm[i]; s1 -= sm[i+1];
                sum[i] = s0; sum[i+1] = s1;
            }

            for( ; i < width; i++ )
            {
                int s0 = sum[i] + sp[i];
                dst[i] = (short)s0;
                sum[i] = s0 - sm[i];
            }
            dst += dst_step;
        }
        else
        {
            const int* sm = src[-ksize+1];
            for( i = 0; i <= width - 2; i += 2 )
            {
                int s0 = sum[i] + sp[i], s1 = sum[i+1] + sp[i+1];
                dst[i] = CV_CAST_16S(s0); dst[i+1] = CV_CAST_16S(s1);
                s0 -= sm[i]; s1 -= sm[i+1];
                sum[i] = s0; sum[i+1] = s1;
            }

            for( ; i < width; i++ )
            {
                int s0 = sum[i] + sp[i];
                dst[i] = CV_CAST_16S(s0);
                sum[i] = s0 - sm[i];
            }
            dst += dst_step;
        }
    }

    *_sum_count = sum_count;
}

Ejemplo n.º 2

Archivo: cvarray.cpp Proyecto: mikanradojevic/sdkpub

// convert CvScalar to specified type
void
cvScalarToRawData( CvScalar* scalar, int flags, void* data, int extend_to_12 )
{
    CV_FUNCNAME( "cvScalarToRawData" );
    
    __BEGIN__;

    int type = CV_ARR_TYPE( flags );
    int cn = CV_ARR_CN( type );
    int depth = type & CV_ARR_DEPTH_MASK;

    assert( scalar && data );
    assert( (unsigned)(cn - 1) < 4 );

    switch( depth )
    {
    case CV_8UC1:
        while( cn-- )
        {
            int t = cvRound( scalar->val[cn] );
            ((uchar*)data)[cn] = CV_CAST_8U(t);
        }
        break;
    case CV_8SC1:
        while( cn-- )
        {
            int t = cvRound( scalar->val[cn] );
            ((char*)data)[cn] = CV_CAST_8S(t);
        }
        break;
    case CV_16SC1:
        while( cn-- )
        {
            int t = cvRound( scalar->val[cn] );
            ((short*)data)[cn] = CV_CAST_16S(t);
        }
        break;
    case CV_32SC1:
        while( cn-- )
            ((int*)data)[cn] = cvRound( scalar->val[cn] );
        break;
    case CV_32FC1:
        while( cn-- )
            ((float*)data)[cn] = (float)(scalar->val[cn]);
        break;
    case CV_64FC1:
        while( cn-- )
            ((double*)data)[cn] = (double)(scalar->val[cn]);
        break;
    default:
        assert(0);
        CV_ERROR_FROM_CODE( CV_BadDepth );
    }

    if( extend_to_12 )
    {
        int pix_size = icvPixSize[type];
        int offset = icvPixSize[depth]*12;

        do
        {
            offset -= pix_size;
            memcpy( (char*)data + offset, data, pix_size );
        }
        while( offset > pix_size );
    }

    __END__;
}