Image file read/write in verilog/system verilog

[rockgarden333]

Hi,

I have written system verilog code for reading data from an image file (800*600 - *.raw).
The file actually contains 800 * 600 * 3 bytes. But my code can only read upto almost half the data.
After that the read data seems to be "00".
Valuable suggestions for resolving this is appreciated..

My code is as follows.

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//`define EOF 32'hFFFF_FFFF
//`define EOF \n
 
reg [7:0]data_byte;
 
class input_video_IF;
    int count;
    integer input_file, fread_return,output_file;
    
    
    function new ();
     
        input_file = $fopen("test_800.raw","r");
        if(input_file)
        begin
           $display("File OPENED");
        end
        else
        begin
           $display("File error");
        end
        
        output_file = $fopen("output_800.raw", "w"); 
    endfunction:new 
    
    task image_file_read();
        count = 0;
        //while (!$feof(input_file))
        while(count != 1440000)
        begin
            fread_return = $fread(data_byte,input_file);
            count++;
            $display("%d %h",count,data_byte);
            //$fwrite(output_file,data_byte);
        end 
        $finish;
        $fclose(input_file);
    endtask : image_file_read
    
endclass
 
program Image_read_test;
int input_file;
input_video_IF In_IF = new();
initial
 
In_IF.image_file_read();
 
endprogram

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