打印图像的方法

#include "env.h"
#include "helper_cuda.h"
#include <device_functions.h>
#include "combo_device_tools.h"

typedef enum COMBO_DT_TYPE{
COMBO_DT_8C,
COMBO_DT_8U,
COMBO_DT_16S,
COMBO_DT_16U,
COMBO_DT_32S,
COMBO_DT_32U,
COMBO_DT_32F,
COMBO_DT_64F
}COMBO_DT_TYPE;

template<class T>
static __device__ void print_data_device_t(uint8_t *data, int w, int h, int stride,int x, int y, int roi_w, int roi_h,int high_accuracy)
{
    T* dataptr = (T*)data;
    for (int j = 0; j != roi_h; ++j) {
        for (int i = 0; i != roi_w; ++i) {
            int of = i+x + (j+y)*stride;
            if (high_accuracy) {
                printf("%.7f ", (float)dataptr[of]);
            }
            else {
                printf("%.2f ", (float)dataptr[of]);
            }
        }
        printf("\n");
    }
    printf("\n");
}


template<class T>
static void print_data_host_t(uint8_t *data, int w, int h, int stride, int x, int y, int roi_w, int roi_h, int high_accuracy)
{
    T* dataptr = (T*)data;
    for (int j = 0; j != roi_h; ++j) {
        for (int i = 0; i != roi_w; ++i) {
            int of = i + x + (j + y)*stride;
            if (high_accuracy) {
                printf("%.7f ", (float)(dataptr[of]));
            }
            else {
                printf("%.2f ", (float)(dataptr[of]));
            }
        }
        printf("\n");
    }
    printf("\n");
}


__global__ static void print_data_device(uint8_t *data, int w, int h, int stride,int x, int y, int roi_w, int roi_h,int high_accuracy, COMBO_DT_TYPE type)
{
    void(*func)(uint8_t *data, int w, int h, int stride,int x, int y, int roi_w, int roi_h,int high_accuracy );

    switch( type ){
        case COMBO_DT_8C:
            func = print_data_device_t<int8_t>;break;
        case COMBO_DT_8U:
            func = print_data_device_t<uint8_t>;break;
        case COMBO_DT_16S:
            func = print_data_device_t<int16_t>;break;
        case COMBO_DT_16U:
            func = print_data_device_t<uint16_t>;break;
        case COMBO_DT_32S:
            func = print_data_device_t<int32_t>;break;
        case COMBO_DT_32U:
            func = print_data_device_t<uint32_t>;break;
        case COMBO_DT_32F:
            func = print_data_device_t<float>;break;
        case COMBO_DT_64F:
            func = print_data_device_t<double>;break;
        default:
            func = print_data_device_t<int8_t>;break;
    }
    func(data,  w,  h,  stride, x,  y,  roi_w,  roi_h, high_accuracy);
}


BEGIN_EXTERNAL_C


void print_data_device(uint8_t *data,int w, int h, int stride,  const char * str, int x, int y, int roi_w, int roi_h, int high_accuracy, COMBO_DT_TYPE type)
{
    cudaThreadSynchronize();
    if (!data)
        return;
    printf("%s :%p\n", str, data);
    print_data_device << <1, 1 >> >(data,  w,  h,  stride, x,  y,  roi_w,  roi_h, high_accuracy,  type);
    cudaThreadSynchronize();
}


void print_data_host(uint8_t *data, int w, int h, int stride, const char * str, int x, int y, int roi_w, int roi_h, int high_accuracy, COMBO_DT_TYPE type)
{
    if (!data)
        return;
    printf("%s :%p\n", str, data);
    void(*func)(uint8_t *data, int w, int h, int stride, int x, int y, int roi_w, int roi_h, int high_accuracy);
    switch( type ){
        case COMBO_DT_8C:
            func = print_data_host_t<int8_t>;break;
        case COMBO_DT_8U:
            func = print_data_host_t<uint8_t>;break;
        case COMBO_DT_16S:
            func = print_data_host_t<int16_t>;break;
        case COMBO_DT_16U:
            func = print_data_host_t<uint16_t>;break;
        case COMBO_DT_32S:
            func = print_data_host_t<int32_t>;break;
        case COMBO_DT_32U:
            func = print_data_host_t<uint32_t>;break;
        case COMBO_DT_32F:
            func = print_data_host_t<float>;break;
        case COMBO_DT_64F:
            func = print_data_host_t<double>;break;
        default:
            func = print_data_host_t<int8_t>;break;
    }
    func(data, w, h, stride, x, y, roi_w, roi_h, high_accuracy);
}


void print_mat_device(const float * data, int w, int h, int stride, const char * str, int x, int y, int roi_w, int roi_h, int high_accuracy)
{
    print_data_device((uint8_t*)data, w, h, stride, str, x, y, roi_w, roi_h, high_accuracy, COMBO_DT_32F);
}


END_EXTERNAL_C