Subversion Repositories bluespec-h264

// The MIT License

// Copyright (c) 2006-2007 Massachusetts Institute of Technology

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to deal

// in the Software without restriction, including without limitation the rights

// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in

// all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

// THE SOFTWARE.

//**********************************************************************

// final output implementation

//----------------------------------------------------------------------

//

//

package mkFinalOutput;

import H264Types::*;

import IFinalOutput::*;

import FIFO::*;

import RegFile::*;

import Connectable::*;

import GetPut::*;

//-----------------------------------------------------------

// Final Output Module

//-----------------------------------------------------------

module mkFinalOutput( IFinalOutput );

   FIFO#(BufferControlOT)  infifo    <- mkFIFO;

   Reg#(Bit#(27))    index   <- mkReg(0);

   Reg#(Bit#(32)) tick_counter <- mkReg(0);

   Reg#(Bit#(32)) data_seen_counter <- mkReg(0);

   Reg#(Bit#(32)) last_f_count <- mkReg(0);

   Reg#(Bit#(32)) f_count <- mkReg(0);

   rule tick;

     tick_counter <= tick_counter + 1;

     if(tick_counter%2000000 == 0)

       begin

         if(last_f_count == f_count)

           begin

             $display("mkFinalOutput: Warning: no new frames, stuck at %d", last_f_count);

           end

         else

           begin

             $display("mkFinalOutput: Feelin' fine current frames: %d", last_f_count);

           end

         last_f_count <= f_count;

       end

   endrule

   //-----------------------------------------------------------

   // Rules

   rule finalout (True);

    //  Bit#(32) data_constant = pack(fromInteger(horizontal_pixels * vertical_pixels))*3/2;

      //if(data_seen_counter + 4 > data_constant)

       // begin

       //   f_count <= f_count + 1;

       //   data_seen_counter <= 0;

       // end

      //else

      //  begin

      //    data_seen_counter <= data_seen_counter+4;

      //  end

      index <= index + 4;

      if(infifo.first() matches tagged YUV .xdata)

         begin

            $display("OUT %h", xdata[7:0]);

            $display("OUT %h", xdata[15:8]);

            $display("OUT %h", xdata[23:16]);

            $display("OUT %h", xdata[31:24]);

            infifo.deq();

         end

      else

         $finish(0);

   endrule

   interface Put ioin  = fifoToPut(infifo);

endmodule

endpackage