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