Subversion Repositories qaz_libs

//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2019 Authors and OPENCORES.ORG                 ////
////                                                              ////
//// This source file may be used and distributed without         ////
//// restriction provided that this copyright statement is not    ////
//// removed from the file and that any derivative work contains  ////
//// the original copyright notice and the associated disclaimer. ////
////                                                              ////
//// This source file is free software; you can redistribute it   ////
//// and/or modify it under the terms of the GNU Lesser General   ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any   ////
//// later version.                                               ////
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//// This source is distributed in the hope that it will be       ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
//// PURPOSE.  See the GNU Lesser General Public License for more ////
//// details.                                                     ////
////                                                              ////
//// You should have received a copy of the GNU Lesser General    ////
//// Public License along with this source; if not, download it   ////
//// from http://www.opencores.org/lgpl.shtml                     ////
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//////////////////////////////////////////////////////////////////////

class s_anf_api #(type T = shortreal) extends s_avf_api;
  `uvm_object_param_utils(s_anf_api #(T))


  // --------------------------------------------------------------------
  function numeric_frame#(T) new_frame;
    numeric_frame #(T) f_h = new();
    f_h.init( '{c_h.lines_per_frame, c_h.pixels_per_line}
            , c_h.pixels_per_clk
            );
    return f_h;
  endfunction

  // --------------------------------------------------------------------
  task put_array(numeric_frame #(T) f_h);
    f_h.make_2d_frame();
    frame_buffer.put(f_h);
  endtask

  // --------------------------------------------------------------------
  task automatic put_test_pattern(string pattern, T value = 0.0);
    numeric_frame #(T) f_h = new();
    f_h.init( '{c_h.lines_per_frame, c_h.pixels_per_line}
            , c_h.pixels_per_clk
            );
    case(pattern.tolower)
      "constant":   f_h.a_h.make_2d_constant(value);
      // "counting":   f_h.make_counting();
      // "horizontal": f_h.make_horizontal();
      // "vertical":   f_h.make_vertical();
      // "random":     f_h.make_random();
      default:      `uvm_fatal(get_name(), "Pattern not supported!")
    endcase
    f_h.make_2d_frame();
    frame_buffer.put(f_h);
    uvm_report_info(get_name(), $sformatf("| put_test_pattern(%s)", pattern.tolower));
  endtask

  // --------------------------------------------------------------------
  task load_from_file(string file_name);
    byte mem[3:0];
    integer fd;
    integer code;
    int x, y;
    numeric_frame #(T) f_h = new();

    fd = $fopen(file_name, "rb");
    f_h.init( '{c_h.lines_per_frame, c_h.pixels_per_line}
            , c_h.pixels_per_clk
            );
    f_h = new_frame();

    for(int i = 0; $feof(fd) == 0; i++)
    begin
      code = $fread(mem, fd);
      y = i / c_h.pixels_per_line;
      x = i % c_h.pixels_per_line;
      f_h.lines[y].pixel[x] = {>>{mem}};
    end

    frame_buffer.put(f_h);
    $fclose(fd);
  endtask

  // --------------------------------------------------------------------
  function new(string name = "s_anf_api");
    super.new(name);
  endfunction

// --------------------------------------------------------------------
endclass