tr8x8dct.c

ADI BF DSP的FFT汇编优化后的代码

/*******************************************************************************
Copyright(c) 2000 - 2002 Analog Devices. All Rights Reserved.
Developed by Joint Development Software Application Team, IPDC, Bangalore, India
for Blackfin DSPs  ( Micro Signal Architecture 1.0 specification).

By using this module you agree to the terms of the Analog Devices License
Agreement for DSP Software. 
********************************************************************************
File name   : tr8x8dct.c
Description : This is the test file for the testing of functionality of
              of forward 8x8 DCT.
*******************************************************************************/
#include <stdio.h>
#include "tr8x8dct.h"
/*
  All the buffers input, temp and coeff are allocated here. The alignment for 
  4096 gaurantees for the different memory bank.
*/

int error_flag = 0;
void (*f1)();
int cycle_count[10];

void _r8x8dct();

void main (void)
{
    int n, i, j, error;

    f1 = _r8x8dct;      

    n = 8;

//Test case 1 : when all the input values are set to zero.

    for(i=0; i<64; i++)
    in[i] = zero_in;

    cycle_count[0] = Compute_Cycle_Count(in, coeff,temp);
                            //This function inturn calls r8x8dct()

    for (i = 0; i < 64; i++)
    {
        if (in[i] != 0)
        {    
            error_flag = error_flag | 1;
            break;
        }
    }

//Test case 2 : when there is an impulse value of 255.

    for(i=0; i<64; i++)        
    in[i] = zero_in;

    in[0] = const_data1;

    cycle_count[1] = Compute_Cycle_Count(in, coeff,temp);
                                //This function inturn calls r8x8dct()

    for (i = 0; i < 64; i++)
    {
        error = in[i] - Testcase2_out[i];
        if (abs(error) > 1)
        {    
            error_flag = error_flag | 2;
            break;
        }
    }

//Test case 3 : when all the input value are set to 25 (DC).

    for(i=0; i<64; i++)
    in[i] = const_data2;

    cycle_count[2] = Compute_Cycle_Count(in, coeff,temp);
                            //This function inturn calls r8x8dct()

    for (i = 0; i < 64; i++)
    {
        error = in[i] - Testcase3_out[i];
        if (abs(error) > 1)
        {    
            error_flag = error_flag | 4;
            break;
        }
    }

//Test Case 4 : when the input is multifrequency.

    for(i=0; i<64; i++)
    in[i] = Testcase4_In[i];

    cycle_count[3] = Compute_Cycle_Count(in, coeff,temp);
                        //This function inturn calls r8x8dct()

    for (i = 0; i < 64; i++)
    {
        error = in[i] - Testcase4_out[i];
        if (abs(error) > 4)
        {    
            error_flag = error_flag | 8;
            break;
        }
    }
    #ifdef PRINTF_SUPPORT
        if(error_flag & 1)
            printf("Test Case 1 failed\n");
        else
            printf("Test Case 1 passed\n");
        if(error_flag & 2)
            printf("Test Case 2 failed\n");
        else
            printf("Test Case 2 passed\n");
        if(error_flag & 4)
            printf("Test Case 3 failed\n");
        else
            printf("Test Case 3 passed\n");
        if(error_flag & 8)
            printf("Test Case 4 failed\n");
        else
            printf("Test Case 4 passed\n");
    #endif
    
}