tarith_decoder_jpeg2000.c

基于adi公司 blackfin533 dsp的JPEG 2000的解码程序,以C语言和汇编编写

/*******************************************************************************
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   :  tarith_decoder_JPEG2000.c
Description : This module tests the arith_decoder_JPEG2000() function.
*******************************************************************************/
#include <stdio.h>
#include"tarith_decoder_JPEG2000.h"
#include "test_input.h"

int error_flag = 0;
void (*f1)();
int cycle_count[MAX_PAIR+1];

void _arith_decode_init();
void _arith_decoder_JPEG2000();

void main()
{
    int i,j,k;
    unsigned char D,cx;
    int error;

// test case : 1

    for (i = 0; i <= MAX_CONTEXTS; i++)
    {
        contexts[i].I = zero_in;
        contexts[i].MPS = zero_in;
                // load Index value and MPS to each context
    }

    contexts[UNIFORM_CX].I = uniform_index;
    contexts[RUNLENGTH_CX].I = runlen_index;
    contexts[0].I = zero_index;

    f1 = _arith_decode_init;

    cycle_count[0] = Compute_Cycle_Count(&dec_reg,&arrayIn1_CD[0],&arrayOut[0]);
                            //This function inturn calls arith_decode_init()
                            // call arith_init to initialize the encoder
    f1 = _arith_decoder_JPEG2000;

    for (i=0;i<MAX_PAIR;i++)
    {
        cx = arrayIn1_C[i];              // get context and decision value

//        _arith_decoder_JPEG2000(cx,&dec_reg,&mqstates[0],&contexts[0]);
        cycle_count[i+1] = Compute_Cycle_Count(cx,&dec_reg,&mqstates[0],
                                               &contexts[0]);
                          //This function inturn calls arith_decoder_JPEG2000()
    }

    for(i=0;i<MAX_PAIR;i++)
    {
        error=arrayOut[i]-exp_output1[i];

        if(abs(error) > MAX_PERMISSIBLE_ERROR)
        {
            error_flag = error_flag | 1;
            break;
        }
    }

// test2

    for (i = 0; i <= MAX_CONTEXTS; i++)
    {
        contexts[i].I = zero_in;
        contexts[i].MPS = zero_in;  // load Index value and MPS to each context
    }

    contexts[UNIFORM_CX].I = uniform_index;
    contexts[RUNLENGTH_CX].I=runlen_index;
    contexts[0].I = zero_index;

    f1 = _arith_decode_init;

    _arith_decode_init(&dec_reg,&arrayIn2_CD[0],&arrayOut[0]);

    f1 = _arith_decoder_JPEG2000;

    for (i=0;i<MAX_PAIR;i++)
    {
        cx = arrayIn2_C[i];             // get context and decision value 

        _arith_decoder_JPEG2000(cx,&dec_reg,&mqstates[0],&contexts[0]);
    }

    for(i=0;i<MAX_PAIR;i++)
    {
        error=arrayOut[i]-exp_output2[i];

        if(abs(error) >MAX_PERMISSIBLE_ERROR)
        {
            error_flag = error_flag | 2;
            break;
        }
    }

// test 3

    for (i = 0; i <= MAX_CONTEXTS; i++)
    {
        contexts[i].I = zero_in;
        contexts[i].MPS = zero_in;  // load Index value and MPS to each context
    }

    contexts[UNIFORM_CX].I = uniform_index;
    contexts[RUNLENGTH_CX].I=runlen_index;
    contexts[0].I = zero_index;

    f1 = _arith_decode_init;

    _arith_decode_init(&dec_reg,&arrayIn3_CD[0],&arrayOut[0]);

    f1 = _arith_decoder_JPEG2000;

    for (i=0;i<MAX_PAIR;i++)
    {
        cx = arrayIn3_C[i];      // get context and decision value 
        _arith_decoder_JPEG2000(cx,&dec_reg,&mqstates[0],&contexts[0]);
    }

    for(i=0;i<MAX_PAIR;i++)
    {
        error=arrayOut[i]-exp_output3[i];
        if(abs(error) > MAX_PERMISSIBLE_ERROR)
        {
            error_flag = error_flag | 4;
            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");
    #endif
    
    printf("cycle_count[0]=%d,cycle_count[1]=%d,cycle_count[2]=%d\n",cycle_count[0],cycle_count[1],cycle_count[2]);
    
}