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[/] [bluespec-h264/] [trunk/] [src/] [mkPrediction.bsv] - Blame information for rev 9

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Line No. Rev Author Line
1 2 jamey.hick 
//**********************************************************************
2 
// Prediction
3 
//----------------------------------------------------------------------
4 
//
5 
//
6 
 
7 
package mkPrediction;
8 
 
9 
import H264Types::*;
10 
 
11 
import IPrediction::*;
12 
import IInterpolator::*;
13 
import mkInterpolator::*;
14 
import FIFO::*;
15 
import FIFOF::*;
16 
import Vector::*;
17 9 jamey.hick 
import RegFile::*;
18 2 jamey.hick 
import Connectable::*;
19 
import GetPut::*;
20 
import ClientServer::*;
21 
 
22 
 
23 
//-----------------------------------------------------------
24 
// Local Datatypes
25 
//-----------------------------------------------------------
26 
 
27 
typedef union tagged
28 
{
29 
 void     Intra;            //Intra non-4x4
30 
 void     Intra4x4;
31 
 void     Inter;
32 
}
33 
OutState deriving(Eq,Bits);
34 
 
35 
typedef union tagged
36 
{
37 
 void     Start;            //not working on anything in particular
38 
 void     Intra16x16;
39 
 void     Intra4x4;
40 
 void     IntraPCM;
41 
}
42 
IntraState deriving(Eq,Bits);
43 
 
44 
typedef union tagged
45 
{
46 
 void     Start;            //not working on anything in particular
47 
 void     InterP16x16;
48 
 void     InterP16x8;
49 
 void     InterP8x16;
50 
 void     InterP8x8;
51 
 void     InterP8x8ref0;
52 
 void     InterPskip;
53 
}
54 
InterState deriving(Eq,Bits);
55 
 
56 
typedef union tagged
57 
{
58 
 Bit#(1) NotInter;//0 for not available, 1 for intra-coded
59 
 struct {Bit#(4) refIdx; Bit#(14) mvhor; Bit#(12) mvver; Bit#(1) nonZeroTransCoeff;} BlockMv;
60 
}
61 
InterBlockMv deriving(Eq,Bits);
62 
 
63 
typedef union tagged
64 
{
65 
 void SkipMB;
66 
 void NonSkipMB;
67 
 void Intra4x4;
68 
 void Intra4x4PlusChroma;
69 
}
70 
NextOutput deriving(Eq,Bits);
71 
 
72 
 
73 
 
74 
//-----------------------------------------------------------
75 
// Helper functions
76 
 
77 
function Bit#(8) intra4x4SelectTop( Bit#(72) valVector, Bit#(4) idx );
78 
   case(idx)
79 
      0: return valVector[15:8];
80 
      1: return valVector[23:16];
81 
      2: return valVector[31:24];
82 
      3: return valVector[39:32];
83 
      4: return valVector[47:40];
84 
      5: return valVector[55:48];
85 
      6: return valVector[63:56];
86 
      7: return valVector[71:64];
87 
      default: return valVector[7:0];
88 
   endcase
89 
endfunction
90 
 
91 
function Bit#(8) intra4x4SelectLeft( Bit#(40) valVector, Bit#(3) idx );
92 
   case(idx)
93 
      0: return valVector[15:8];
94 
      1: return valVector[23:16];
95 
      2: return valVector[31:24];
96 
      3: return valVector[39:32];
97 
      default: return valVector[7:0];
98 
   endcase
99 
endfunction
100 
 
101 
function Bit#(8) select32to8( Bit#(32) valVector, Bit#(2) idx );
102 
   case(idx)
103 
      0: return valVector[7:0];
104 
      1: return valVector[15:8];
105 
      2: return valVector[23:16];
106 
      3: return valVector[31:24];
107 
   endcase
108 
endfunction
109 
 
110 
function Bit#(8) select16to8( Bit#(16) valVector, Bit#(1) idx );
111 
   case(idx)
112 
      0: return valVector[7:0];
113 
      1: return valVector[15:8];
114 
   endcase
115 
endfunction
116 
 
117 
function Bool absDiffGEFour14( Bit#(14) val1, Bit#(14) val2 );
118 
   Int#(15) int1 = unpack(signExtend(val1));
119 
   Int#(15) int2 = unpack(signExtend(val2));
120 
   if(int1>=int2)
121 
      return (int1 >= (int2+4));
122 
   else
123 
      return (int2 >= (int1+4));
124 
endfunction
125 
 
126 
function Bool absDiffGEFour12( Bit#(12) val1, Bit#(12) val2 );
127 
   Int#(13) int1 = unpack(signExtend(val1));
128 
   Int#(13) int2 = unpack(signExtend(val2));
129 
   if(int1>=int2)
130 
      return (int1 >= (int2+4));
131 
   else
132 
      return (int2 >= (int1+4));
133 
endfunction
134 
 
135 
 
136 
//-----------------------------------------------------------
137 
// Prediction Module
138 
//-----------------------------------------------------------
139 
 
140 
 
141 
(* synthesize *)
142 
module mkPrediction( IPrediction );
143 
 
144 
   //Common state
145 
   FIFO#(EntropyDecOT)   infifo     <- mkSizedFIFO(prediction_infifo_size);
146 
   FIFO#(InverseTransOT) infifo_ITB <- mkSizedFIFO(prediction_infifo_ITB_size);
147 
   FIFO#(EntropyDecOT)   outfifo    <- mkFIFO;
148 
   Reg#(Bool)            passFlag   <- mkReg(True);
149 
   Reg#(Bit#(4))         blockNum   <- mkReg(0);
150 
   Reg#(Bit#(4))         pixelNum   <- mkReg(0);
151 
 
152 
   Reg#(Bit#(PicWidthSz))  picWidth  <- mkReg(maxPicWidthInMB);
153 
   Reg#(Bit#(PicHeightSz)) picHeight <- mkReg(0);
154 
   Reg#(Bit#(PicAreaSz))   firstMb   <- mkReg(0);
155 
   Reg#(Bit#(PicAreaSz))   currMb    <- mkReg(0);
156 
   Reg#(Bit#(PicAreaSz))   currMbHor <- mkReg(0);//horizontal position of currMb
157 
   Reg#(Bit#(PicHeightSz)) currMbVer <- mkReg(0);//vertical position of currMb
158 
 
159 
   FIFOF#(OutState)   outstatefifo   <- mkFIFOF;
160 
   FIFOF#(NextOutput) nextoutputfifo <- mkFIFOF;
161 
   Reg#(Bit#(4))   outBlockNum    <- mkReg(0);
162 
   Reg#(Bit#(4))   outPixelNum    <- mkReg(0);
163 
   FIFO#(Vector#(4,Bit#(8))) predictedfifo  <- mkSizedFIFO(prediction_predictedfifo_size);
164 
   Reg#(Bit#(1))   outChromaFlag  <- mkReg(0);
165 
   Reg#(Bool)      outFirstQPFlag <- mkReg(False);
166 
 
167 
   DoNotFire donotfire <- mkDoNotFire();
168 
 
169 
   //Reg#(Vector#(16,Bit#(8))) workVector       <- mkRegU();
170 
 
171 
   //Inter state
172 
   Interpolator interpolator <- mkInterpolator();
173 
   Reg#(InterState) interstate <- mkReg(Start);
174 
   Reg#(Bit#(PicAreaSz)) interPskipCount <- mkReg(0);
175 
   Reg#(Vector#(5,InterBlockMv)) interTopVal <- mkRegU();
176 
   Reg#(Vector#(4,InterBlockMv)) interLeftVal <- mkRegU();
177 
   Reg#(Vector#(4,InterBlockMv)) interTopLeftVal <- mkRegU();
178 
   FIFO#(MemReq#(TAdd#(PicWidthSz,2),32)) interMemReqQ <- mkFIFO;
179 
   Reg#(MemReq#(TAdd#(PicWidthSz,2),32)) interMemReqQdelay <- mkRegU();
180 
   FIFO#(MemResp#(32))  interMemRespQ <- mkFIFO;
181 
   Reg#(Bit#(3)) interReqCount <- mkReg(0);
182 
   Reg#(Bit#(3)) interRespCount <- mkReg(0);
183 
 
184 
   Reg#(Bit#(1)) interStepCount <- mkReg(0);
185 
   Reg#(Bit#(2)) interMbPartNum <- mkReg(0);
186 
   Reg#(Bit#(2)) interSubMbPartNum <- mkReg(0);
187 
   Reg#(Bit#(2)) interPassingCount <- mkReg(0);
188 
   Reg#(Vector#(4,Bit#(4))) interRefIdxVector <- mkRegU();
189 
   Reg#(Vector#(4,Bit#(2))) interSubMbTypeVector <- mkRegU();
190 9 jamey.hick 
   // Fix this at some point
191 
   RegFile#(Bit#(4),Tuple2#(Bit#(14),Bit#(12))) interMvFile <- mkRegFileFull();
192 2 jamey.hick 
   Reg#(Bit#(15)) interMvDiffTemp <- mkReg(0);
193 
   FIFO#(Tuple2#(Bit#(15),Bit#(13))) interMvDiff <- mkFIFO;
194 
   Reg#(Bit#(5)) interNewestMv <- mkReg(0);
195 
 
196 
   Reg#(Bit#(2)) interIPStepCount <- mkReg(0);
197 
   Reg#(Bit#(2)) interIPMbPartNum <- mkReg(0);
198 
   Reg#(Bit#(2)) interIPSubMbPartNum <- mkReg(0);
199 
 
200 
   Reg#(Bit#(PicWidthSz)) interCurrMbDiff <- mkReg(0);
201 
 
202 
   Reg#(Vector#(4,Bool)) interTopNonZeroTransCoeff <- mkRegU();
203 
   Reg#(Vector#(4,Bool)) interLeftNonZeroTransCoeff <- mkRegU();
204 
   FIFO#(Tuple2#(Bit#(2),Bit#(2))) interBSfifo <- mkSizedFIFO(32);
205 
   Reg#(Bool) interBSoutput <- mkReg(True);
206 
   FIFO#(InterBlockMv) interOutBlockMvfifo <- mkSizedFIFO(8);
207 
 
208 
 
209 
   //Intra state
210 
   Reg#(IntraState)     intrastate      <- mkReg(Start);
211 
   Reg#(Bit#(1))        intraChromaFlag <- mkReg(0);
212 
   FIFO#(MemReq#(TAdd#(PicWidthSz,2),68)) intraMemReqQ  <- mkFIFO;
213 
   Reg#(MemReq#(TAdd#(PicWidthSz,2),68)) intraMemReqQdelay <- mkRegU;
214 
   FIFO#(MemResp#(68))  intraMemRespQ <- mkFIFO;
215 
   Reg#(Vector#(4,Bit#(4))) intra4x4typeLeft <- mkRegU();//15=unavailable, 14=inter-MB, 13=intra-non-4x4
216 
   Reg#(Vector#(4,Bit#(4))) intra4x4typeTop  <- mkRegU();//15=unavailable, 14=inter-MB, 13=intra-non-4x4
217 
   Reg#(Bit#(1)) ppsconstrained_intra_pred_flag <- mkReg(0);
218 
   Reg#(Vector#(4,Bit#(40))) intraLeftVal <- mkRegU();
219 
   Reg#(Vector#(9,Bit#(8))) intraLeftValChroma0 <- mkRegU();
220 
   Reg#(Vector#(9,Bit#(8))) intraLeftValChroma1 <- mkRegU();
221 
   Reg#(Vector#(5,Bit#(32))) intraTopVal <- mkRegU();
222 
   Reg#(Vector#(4,Bit#(16))) intraTopValChroma0 <- mkRegU();
223 
   Reg#(Vector#(4,Bit#(16))) intraTopValChroma1 <- mkRegU();
224 
   Reg#(Bit#(32)) intraLeftValNext <- mkReg(0);
225 
   Reg#(Bit#(2)) intra16x16_pred_mode <- mkReg(0);
226 
   FIFO#(Bit#(4)) rem_intra4x4_pred_mode <- mkSizedFIFO(16);
227 
   FIFO#(Bit#(2)) intra_chroma_pred_mode <- mkFIFO;
228 
   Reg#(Bit#(4)) cur_intra4x4_pred_mode <- mkReg(0);
229 
   Reg#(Bit#(1)) intraChromaTopAvailable <- mkReg(0);
230 
   Reg#(Bit#(1)) intraChromaLeftAvailable <- mkReg(0);
231 
 
232 
   Reg#(Bit#(3)) intraReqCount <- mkReg(0);
233 
   Reg#(Bit#(3)) intraRespCount <- mkReg(0);
234 
   Reg#(Bit#(4)) intraStepCount <- mkReg(0);
235 
   Reg#(Bit#(13)) intraSumA <-  mkReg(0);
236 
   Reg#(Bit#(15)) intraSumB <-  mkReg(0);
237 
   Reg#(Bit#(15)) intraSumC <-  mkReg(0);
238 
 
239 
 
240 
 
241 
   //-----------------------------------------------------------
242 
   // Rules
243 
 
244 
   //////////////////////////////////////////////////////////////////////////////
245 
//   rule stateMonitor ( True );
246 
//      if(predictedfifo.notEmpty())
247 
//       $display( "TRACE Prediction: stateMonitor predictedfifo.first() %0d", predictedfifo.first());////////////////////
248 
//      if(infifo.first() matches tagged ITBresidual .xdata)
249 
//       $display( "TRACE Prediction: stateMonitor infifo.first() %0d", xdata);////////////////////
250 
//      if(infifo.first() matches tagged ITBresidual .xdata)
251 
//       $display( "TRACE Prediction: stateMonitor outBlockNum outPixelNum outChromaFlag %0d %0d", outBlockNum, outPixelNum, outChromaFlag);////////////////////
252 
//   endrule
253 
   //////////////////////////////////////////////////////////////////////////////
254 
 
255 
 
256 
   rule checkFIFO ( True );
257 
      $display( "Trace Prediction: checkFIFO %h", infifo_ITB.first() );
258 
   endrule
259 
 
260 
   rule passing ( passFlag && !outstatefifo.notEmpty() && currMbHor
261 
      $display( "Trace Prediction: passing infifo packed %h", pack(infifo.first()));
262 
      case (infifo.first()) matches
263 
         tagged NewUnit . xdata :
264 
            begin
265 
               infifo.deq();
266 
               outfifo.enq(infifo.first());
267 
               $display("ccl4newunit");
268 
               $display("ccl4rbspbyte %h", xdata);
269 
            end
270 
         tagged SPSpic_width_in_mbs .xdata :
271 
            begin
272 
               infifo.deq();
273 
               outfifo.enq(infifo.first());
274 
               picWidth <= xdata;
275 
               interpolator.setPicWidth(xdata);
276 
            end
277 
         tagged SPSpic_height_in_map_units .xdata :
278 
            begin
279 
               infifo.deq();
280 
               outfifo.enq(infifo.first());
281 
               picHeight <= xdata;
282 
               interpolator.setPicHeight(xdata);
283 
            end
284 
         tagged PPSconstrained_intra_pred_flag .xdata :
285 
            begin
286 
               infifo.deq();
287 
               ////outfifo.enq(infifo.first());
288 
               ppsconstrained_intra_pred_flag <= xdata;
289 
            end
290 
         tagged SHfirst_mb_in_slice .xdata :
291 
            begin
292 
               infifo.deq();
293 
               outfifo.enq(infifo.first());
294 
               firstMb   <= xdata;
295 
               currMb    <= xdata;
296 
               currMbHor <= xdata;
297 
               currMbVer <= 0;
298 
               intra4x4typeLeft <= replicate(15);
299 
               interTopLeftVal <= replicate(NotInter 0);
300 
               if(xdata==0)
301 
                  interLeftVal <= replicate(NotInter 0);
302 
               outFirstQPFlag <= True;
303 
            end
304 
         tagged SDmb_skip_run .xdata : passFlag <= False;
305 
         tagged SDMmbtype .xdata : passFlag <= False;
306 
         tagged EndOfFile :
307 
            begin
308 
               infifo.deq();
309 
               outfifo.enq(infifo.first());
310 
               $display( "INFO Prediction: EndOfFile reached" );
311 
               //$finish(0);////////////////////////////////
312 
            end
313 
         default:
314 
            begin
315 
               infifo.deq();
316 
               outfifo.enq(infifo.first());
317 
            end
318 
      endcase
319 
   endrule
320 
 
321 
 
322 
   rule inputing ( !passFlag );
323 
      $display( "Trace Prediction: inputing infifo packed %h", pack(infifo.first()));
324 
      case (infifo.first()) matches
325 
         tagged SDmb_skip_run .xdata :
326 
            begin
327 
               if(interstate==Start && intrastate==Start)
328 
                  begin
329 
                     if(interPskipCount < xdata)
330 
                        begin
331 
                           if(!outstatefifo.notEmpty() || interCurrMbDiff
332 
                              begin
333 
                                 $display( "Trace Prediction: passing SDmb_skip_run %0d", xdata);
334 
                                 outstatefifo.enq(Inter);
335 
                                 interstate <= InterPskip;
336 
                                 interReqCount <= 1;
337 
                                 interRespCount <= 1;
338 
                                 intra4x4typeLeft <= replicate(14);
339 
                                 intra4x4typeTop <= replicate(14);
340 
                                 interTopLeftVal <= update(interTopLeftVal , 0, (NotInter 0));
341 
                                 interTopVal <= replicate(NotInter 0);
342 
                                 interPskipCount <= interPskipCount+1;
343 
                                 interNewestMv <= 0;
344 
                                 interRefIdxVector <= replicate(0);
345 
                                 interCurrMbDiff <= interCurrMbDiff+1;
346 
                                 nextoutputfifo.enq(SkipMB);
347 
                              end
348 
                           else
349 
                              donotfire.doNotFire();
350 
                        end
351 
                     else
352 
                        begin
353 
                           $display( "Trace Prediction: passing no SDmb_skip_run");
354 
                           interPskipCount <= 0;
355 
                           infifo.deq();
356 
                        end
357 
                  end
358 
               else
359 
                  donotfire.doNotFire();
360 
            end
361 
         tagged SDMmbtype .xdata :
362 
            begin
363 
               if(interstate==Start && intrastate==Start)//not necessary (just need to keep inter from feeding predictedfifo or change intra state until intrastate==Start)
364 
                  begin
365 
                     infifo.deq();
366 
                     $display( "INFO Prediction: SDMmbtype %0d", xdata);
367 
                     if(mbPartPredMode(xdata,0)==Intra_16x16)
368 
                        begin
369 
                           if(!outstatefifo.notEmpty())
370 
                              begin
371 
                                 outstatefifo.enq(Intra);
372 
                                 intrastate <= Intra16x16;
373 
                                 if(xdata matches tagged I_16x16 {intra16x16PredMode:.tempv1, codedBlockPatternChroma:.tempv2, codedBlockPatternLuma:.tempv3})
374 
                                    intra16x16_pred_mode <= tempv1;
375 
                                 else
376 
                                    $display( "ERROR Prediction: MacroblockLayer 5 sdmmbtype not I_16x16" );
377 
                                 intraReqCount <= 1;
378 
                                 intraRespCount <= 1;
379 
                                 interTopLeftVal <= replicate(NotInter 1);
380 
                                 interLeftVal <= replicate(NotInter 1);
381 
                                 interTopVal <= replicate(NotInter 1);
382 
                              end
383 
                           else
384 
                              donotfire.doNotFire();
385 
                        end
386 
                     else if(xdata==I_NxN)
387 
                        begin
388 
                           if(!outstatefifo.notEmpty())
389 
                              begin
390 
                                 outstatefifo.enq(Intra4x4);
391 
                                 intrastate <= Intra4x4;
392 
                                 intraReqCount <= 1;
393 
                                 intraRespCount <= 1;
394 
                                 interTopLeftVal <= replicate(NotInter 1);
395 
                                 interLeftVal <= replicate(NotInter 1);
396 
                                 interTopVal <= replicate(NotInter 1);
397 
                              end
398 
                           else
399 
                              donotfire.doNotFire();
400 
                        end
401 
                     else if(xdata==I_PCM)
402 
                        begin
403 
                           $display( "ERROR Prediction: I_PCM not implemented yet");
404 
                           $finish;////////////////////////////////////////////////////////////////////////////////////////
405 
                           intra4x4typeLeft <= replicate(13);
406 
                           intra4x4typeTop <= replicate(13);
407 
                           interTopLeftVal <= replicate(NotInter 1);
408 
                           interLeftVal <= replicate(NotInter 1);
409 
                           interTopVal <= replicate(NotInter 1);
410 
                        end
411 
                     else
412 
                        begin
413 
                           if(!outstatefifo.notEmpty() || interCurrMbDiff
414 
                              begin
415 
                                 outstatefifo.enq(Inter);
416 
                                 case(xdata)
417 
                                    P_L0_16x16: interstate <= InterP16x16;
418 
                                    P_L0_L0_16x8: interstate <= InterP16x8;
419 
                                    P_L0_L0_8x16: interstate <= InterP8x16;
420 
                                    P_8x8: interstate <= InterP8x8;
421 
                                    P_8x8ref0: interstate <= InterP8x8ref0;
422 
                                    default: $display( "ERROR Prediction: passing SDMmbtype inter prediction unknown mbtype");
423 
                                 endcase
424 
                                 interReqCount <= 1;
425 
                                 interRespCount <= 1;
426 
                                 intra4x4typeLeft <= replicate(14);/////////////////////////////////////////////////////////////////////////////
427 
                                 intra4x4typeTop <= replicate(14);
428 
                                 interTopLeftVal <= update(interTopLeftVal , 0, (NotInter 0));
429 
                                 interTopVal <= replicate(NotInter 0);
430 
                                 interNewestMv <= 0;
431 
                                 interRefIdxVector <= replicate(0);
432 
                                 nextoutputfifo.enq(NonSkipMB);
433 
                              end
434 
                           else
435 
                              donotfire.doNotFire();
436 
                        end
437 
                     interCurrMbDiff <= interCurrMbDiff+1;
438 
                  end
439 
               else
440 
                  donotfire.doNotFire();
441 
            end
442 
         tagged SDMMrem_intra4x4_pred_mode .xdata :
443 
            begin
444 
               infifo.deq();
445 
               ////outfifo.enq(infifo.first());
446 
               rem_intra4x4_pred_mode.enq(xdata);
447 
            end
448 
         tagged SDMMintra_chroma_pred_mode .xdata :
449 
            begin
450 
               infifo.deq();
451 
               ////outfifo.enq(infifo.first());
452 
               intra_chroma_pred_mode.enq(xdata);
453 
            end
454 
         tagged SDMMref_idx_l0 .xdata :
455 
            begin
456 
               infifo.deq();
457 
               ////outfifo.enq(infifo.first());
458 
               interRefIdxVector <= update(interRefIdxVector,interPassingCount,xdata[3:0]);
459 
               if(interstate==InterP16x16 || interPassingCount==1)
460 
                  interPassingCount <= 0;
461 
               else
462 
                  interPassingCount <= interPassingCount+1;
463 
            end
464 
         tagged SDMMmvd_l0 .xdata :
465 
            begin
466 
               infifo.deq();
467 
               ////outfifo.enq(infifo.first());
468 
               if(interPassingCount==1)
469 
                  begin
470 
                     Bit#(13) interMvDiffTemp2 = truncate(xdata);
471 
                     interMvDiff.enq(tuple2(interMvDiffTemp,interMvDiffTemp2));
472 
                     interPassingCount <= 0;
473 
                  end
474 
               else
475 
                  begin
476 
                     interMvDiffTemp <= truncate(xdata);
477 
                     interPassingCount <= interPassingCount+1;
478 
                  end
479 
            end
480 
         tagged SDMSsub_mb_type .xdata :
481 
            begin
482 
               infifo.deq();
483 
               ////outfifo.enq(infifo.first());
484 
               interSubMbTypeVector <= update(interSubMbTypeVector,interPassingCount,xdata);
485 
               interPassingCount <= interPassingCount+1;
486 
            end
487 
         tagged SDMSref_idx_l0 .xdata :
488 
            begin
489 
               infifo.deq();
490 
               ////outfifo.enq(infifo.first());
491 
               interRefIdxVector <= update(interRefIdxVector,interPassingCount,xdata[3:0]);
492 
               interPassingCount <= interPassingCount+1;
493 
            end
494 
         tagged SDMSmvd_l0 .xdata :
495 
            begin
496 
               infifo.deq();
497 
               ////outfifo.enq(infifo.first());
498 
               if(interPassingCount==1)
499 
                  begin
500 
                     Bit#(13) interMvDiffTemp2 = truncate(xdata);
501 
                     interMvDiff.enq(tuple2(interMvDiffTemp,interMvDiffTemp2));
502 
                     interPassingCount <= 0;
503 
                  end
504 
               else
505 
                  begin
506 
                     interMvDiffTemp <= truncate(xdata);
507 
                     interPassingCount <= interPassingCount+1;
508 
                  end
509 
            end
510 
         default: passFlag <= True;
511 
      endcase
512 
   endrule
513 
 
514 
 
515 
   rule outputing ( currMbHor
516 
      Bit#(1) outputFlag = 0;
517 
      Vector#(4,Bit#(8)) outputVector = replicate(0);
518 
      Bit#(2) blockHor = {outBlockNum[2],outBlockNum[0]};
519 
      Bit#(2) blockVer = {outBlockNum[3],outBlockNum[1]};
520 
      Bit#(2) pixelVer = {outPixelNum[3],outPixelNum[2]};
521 
      Bit#(4) totalVer = {blockVer,pixelVer};
522 
      //$display( "Trace Prediction: outputing" );
523 
      if(outFirstQPFlag)
524 
         begin
525 
            if(infifo_ITB.first() matches tagged IBTmb_qp .xdata)
526 
               begin
527 
                  infifo_ITB.deq();
528 
                  outfifo.enq(IBTmb_qp {qpy:xdata.qpy,qpc:xdata.qpc});
529 
                  outFirstQPFlag <= False;
530 
                  $display( "Trace Prediction: outputing outFirstQP %h %h %h", outBlockNum, outPixelNum, xdata);
531 
               end
532 
            else
533 
               $display( "ERROR Prediction: outputing unexpected infifo_ITB.first()");
534 
         end
535 
      else if(nextoutputfifo.first() == SkipMB)
536 
         begin
537 
            if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
538 
               begin
539 
                  interBSoutput <= False;
540 
                  interBSfifo.deq();
541 
                  Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
542 
                  Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
543 
                  Bit#(3) horBS = (tempHorBS==3 ? 4 : (interLeftNonZeroTransCoeff[blockVer] ? 2 : zeroExtend(tempHorBS)));
544 
                  Bit#(3) verBS = (tempVerBS==3 ? 4 : (interTopNonZeroTransCoeff[blockHor]&&blockVer!=0 ? 2 : zeroExtend(tempVerBS)));
545 
                  outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
546 
                  interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, False);
547 
                  interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, False);
548 
                  $display( "Trace Prediction: outputing SkipMB bS %h %h %h %h", outBlockNum, outPixelNum, currMbHor, currMbVer);
549 
               end
550 
            else
551 
               begin
552 
                  interBSoutput <= True;
553 
                  outputVector = predictedfifo.first();
554 
                  outfifo.enq(PBoutput outputVector);
555 
                  outputFlag = 1;
556 
                  predictedfifo.deq();
557 
                  $display( "Trace Prediction: outputing SkipMB out %h %h %h", outBlockNum, outPixelNum, outputVector);
558 
               end
559 
         end
560 
      else
561 
         begin
562 
            case ( infifo_ITB.first() ) matches
563 
               tagged IBTmb_qp .xdata :
564 
                  begin
565 
                     infifo_ITB.deq();
566 
                     outfifo.enq(IBTmb_qp {qpy:xdata.qpy,qpc:xdata.qpc});
567 
                     outFirstQPFlag <= False;
568 
                     $display( "Trace Prediction: outputing ITBmb_qp %h %h %h", outBlockNum, outPixelNum, xdata);
569 
                  end
570 
               tagged ITBresidual .xdata :
571 
                  begin
572 
                     if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
573 
                        begin
574 
                           interBSoutput <= False;
575 
                           if(outstatefifo.first() != Inter)
576 
                              outfifo.enq(PBbS {bShor:(blockHor==0 ? 4 : 3),bSver:(blockVer==0 ? 4 : 3)});
577 
                           else
578 
                              begin
579 
                                 interBSfifo.deq();
580 
                                 Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
581 
                                 Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
582 
                                 Bit#(3) horBS = (tempHorBS==3 ? 4 : 2);
583 
                                 Bit#(3) verBS = (tempVerBS==3 ? 4 : 2);
584 
                                 outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
585 
                              end
586 
                           interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, True);
587 
                           interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, True);
588 
                           $display( "Trace Prediction: outputing ITBresidual bS %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, currMbHor, currMbVer);
589 
                        end
590 
                     else
591 
                        begin
592 
                           interBSoutput <= True;
593 
                           Bit#(11) tempOutputValue = 0;
594 
                           for(Integer ii=0; ii<4; ii=ii+1)
595 
                              begin
596 
                                 tempOutputValue = signExtend(xdata[ii]) + zeroExtend((predictedfifo.first())[ii]);
597 
                                 if(tempOutputValue[10]==1)
598 
                                    outputVector[ii] = 0;
599 
                                 else if(tempOutputValue[9:0] > 255)
600 
                                    outputVector[ii] = 255;
601 
                                 else
602 
                                    outputVector[ii] = tempOutputValue[7:0];
603 
                              end
604 
                           outfifo.enq(PBoutput outputVector);
605 
                           infifo_ITB.deq();
606 
                           predictedfifo.deq();
607 
                           outputFlag = 1;
608 
                           $display( "Trace Prediction: outputing ITBresidual out %h %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, predictedfifo.first(), xdata, outputVector);
609 
                        end
610 
                  end
611 
               tagged ITBcoeffLevelZeros :
612 
                  begin
613 
                     if(interBSoutput && outChromaFlag==0 && outPixelNum==0)
614 
                        begin
615 
                           interBSoutput <= False;
616 
                           if(outstatefifo.first() != Inter)
617 
                              outfifo.enq(PBbS {bShor:(blockHor==0 ? 4 : 3),bSver:(blockVer==0 ? 4 : 3)});
618 
                           else
619 
                              begin
620 
                                 interBSfifo.deq();
621 
                                 Bit#(2) tempHorBS = tpl_1(interBSfifo.first());
622 
                                 Bit#(2) tempVerBS = tpl_2(interBSfifo.first());
623 
                                 Bit#(3) horBS = (tempHorBS==3 ? 4 : (interLeftNonZeroTransCoeff[blockVer] ? 2 : zeroExtend(tempHorBS)));
624 
                                 Bit#(3) verBS = (tempVerBS==3 ? 4 : (interTopNonZeroTransCoeff[blockHor]&&blockVer!=0 ? 2 : zeroExtend(tempVerBS)));
625 
                                 outfifo.enq(PBbS {bShor:horBS,bSver:verBS});
626 
                              end
627 
                           interLeftNonZeroTransCoeff <= update(interLeftNonZeroTransCoeff, blockVer, False);
628 
                           interTopNonZeroTransCoeff <= update(interTopNonZeroTransCoeff, blockHor, False);
629 
                           $display( "Trace Prediction: outputing ITBcoeffLevelZeros bS %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, currMbHor, currMbVer);
630 
                        end
631 
                     else
632 
                        begin
633 
                           interBSoutput <= True;
634 
                           if(outPixelNum == 12)
635 
                              infifo_ITB.deq();
636 
                           outputVector = predictedfifo.first();
637 
                           outfifo.enq(PBoutput outputVector);
638 
                           outputFlag = 1;
639 
                           predictedfifo.deq();
640 
                           $display( "Trace Prediction: outputing ITBcoeffLevelZeros out %h %h %h %h %h", outChromaFlag, outBlockNum, outPixelNum, predictedfifo.first(), outputVector);
641 
                        end
642 
                  end
643 
               default: $display( "ERROR Prediction: outputing unknown infifo_ITB input" );
644 
            endcase
645 
         end
646 
 
647 
      if(outputFlag == 1)
648 
         begin
649 
            $display("ccl4PBoutput %0d", outputVector[0]);
650 
            $display("ccl4PBoutput %0d", outputVector[1]);
651 
            $display("ccl4PBoutput %0d", outputVector[2]);
652 
            $display("ccl4PBoutput %0d", outputVector[3]);
653 
 
654 
            if(outBlockNum==0 && pixelVer==0 && outChromaFlag==0 && currMb!=firstMb && picWidth>1)
655 
               begin
656 
                  intraMemReqQ.enq(intraMemReqQdelay);
657 
                  interMemReqQ.enq(interMemReqQdelay);
658 
                  //$display( "TRACE Prediction: passing storing addr data");//////////////////
659 
               end
660 
 
661 
            if(blockHor==3 || (blockHor[0]==1 && outChromaFlag==1) || (outstatefifo.first()==Intra4x4 && outChromaFlag==0))
662 
               begin
663 
                  if(outChromaFlag==0)
664 
                     begin
665 
                        Bit#(32) intraLeftValNextTemp = intraLeftValNext;
666 
                        if(totalVer==0 || (outstatefifo.first()==Intra4x4 && pixelVer==0))
667 
                           begin
668 
                              Bit#(32) tempValSet = select(intraTopVal,zeroExtend(blockHor));
669 
                              intraLeftValNextTemp = zeroExtend(tempValSet[31:24]);
670 
                           end
671 
                        case(pixelVer)
672 
                           0:intraLeftValNext <= {intraLeftValNextTemp[31:16],outputVector[3],intraLeftValNextTemp[7:0]};
673 
                           1:intraLeftValNext <= {intraLeftValNextTemp[31:24],outputVector[3],intraLeftValNextTemp[15:0]};
674 
                           2:intraLeftValNext <= {outputVector[3],intraLeftValNextTemp[23:0]};
675 
                           3:
676 
                           begin
677 
                              intraLeftVal <= update(intraLeftVal,blockVer,{outputVector[3],intraLeftValNextTemp});
678 
                              intraLeftValNext <= zeroExtend(outputVector[3]);
679 
                              if(outstatefifo.first()==Intra4x4)
680 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,cur_intra4x4_pred_mode);
681 
                              else if(outstatefifo.first()==Intra)
682 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,13);
683 
                              else
684 
                                 intra4x4typeLeft <= update(intra4x4typeLeft,blockVer,14);
685 
                           end
686 
                        endcase
687 
                     end
688 
                  else
689 
                     begin
690 
                        if(outBlockNum[2]==0)
691 
                           intraLeftValChroma0 <= update(intraLeftValChroma0,totalVer+1,outputVector[3]);
692 
                        else
693 
                           intraLeftValChroma1 <= update(intraLeftValChroma1,totalVer+1,outputVector[3]);
694 
                     end
695 
               end
696 
 
697 
            if(pixelVer==3 && (blockVer==3 || (blockVer[0]==1 && outChromaFlag==1) || (outstatefifo.first()==Intra4x4 && outChromaFlag==0)))
698 
               begin
699 
                  if(outChromaFlag==0)
700 
                     begin
701 
                        intraTopVal <= update(intraTopVal,zeroExtend(blockHor),{outputVector[3],outputVector[2],outputVector[1],outputVector[0]});
702 
                        if(outstatefifo.first()==Intra4x4)
703 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,cur_intra4x4_pred_mode);
704 
                        else if(outstatefifo.first()==Intra)
705 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,13);
706 
                        else
707 
                           intra4x4typeTop <= update(intra4x4typeTop,blockHor,14);
708 
                     end
709 
                  else
710 
                     begin
711 
                        if(outBlockNum[2]==0)
712 
                           begin
713 
                              Vector#(4,Bit#(16)) intraTopValChroma0Next = intraTopValChroma0;
714 
                              intraTopValChroma0Next[{blockHor[0],1'b0}] = {outputVector[1],outputVector[0]};
715 
                              intraTopValChroma0Next[{blockHor[0],1'b1}] = {outputVector[3],outputVector[2]};
716 
                              intraTopValChroma0 <= intraTopValChroma0Next;
717 
                           end
718 
                        else
719 
                           begin
720 
                              Vector#(4,Bit#(16)) intraTopValChroma1Next = intraTopValChroma1;
721 
                              intraTopValChroma1Next[{blockHor[0],1'b0}] = {outputVector[1],outputVector[0]};
722 
                              intraTopValChroma1Next[{blockHor[0],1'b1}] = {outputVector[3],outputVector[2]};
723 
                              intraTopValChroma1 <= intraTopValChroma1Next;
724 
                           end
725 
                     end
726 
               end
727 
 
728 
            if(outChromaFlag==1 && outBlockNum==7)
729 
               begin
730 
                  Bit#(PicWidthSz) tempStoreAddr = truncate(currMbHor);
731 
                  InterBlockMv outBlockMv = interOutBlockMvfifo.first();
732 
                  if(outBlockMv matches tagged BlockMv .bdata)
733 
                     begin
734 
                        outBlockMv = (BlockMv {refIdx:bdata.refIdx,mvhor:bdata.mvhor,mvver:bdata.mvver,nonZeroTransCoeff:(interTopNonZeroTransCoeff[pixelVer]?1:0)});
735 
                        interOutBlockMvfifo.deq();
736 
                     end
737 
                  else if(pixelVer==3)
738 
                     interOutBlockMvfifo.deq();
739 
                  if(pixelVer==3 && picWidth>1)
740 
                     interMemReqQdelay <= StoreReq {addr:{tempStoreAddr,pixelVer},data:pack(outBlockMv)};
741 
                  else
742 
                     interMemReqQ.enq(StoreReq {addr:{tempStoreAddr,pixelVer},data:pack(outBlockMv)});
743 
                  if(pixelVer>0)
744 
                     begin
745 
                        Bit#(4)  intra4x4typeTopStore = ((outstatefifo.first()==Inter) ? 14 : ((outstatefifo.first()!=Intra4x4) ? 13: intra4x4typeTop[(pixelVer-1)]));
746 
                        Bit#(32) intraTopValStore = intraTopVal[(pixelVer-1)];
747 
                        Bit#(16) intraTopValChroma0Store = intraTopValChroma0[(pixelVer-1)];
748 
                        Bit#(16) intraTopValChroma1Store = (pixelVer<3 ? intraTopValChroma1[(pixelVer-1)] : {outputVector[1],outputVector[0]});
749 
                        Bit#(68) intraStore = {intra4x4typeTopStore,intraTopValChroma1Store,intraTopValChroma0Store,intraTopValStore};
750 
                        intraMemReqQ.enq(StoreReq {addr:{tempStoreAddr,(pixelVer-1)},data:intraStore});
751 
                        if(pixelVer==3)
752 
                           begin
753 
                              intra4x4typeTopStore = ((outstatefifo.first()==Inter) ? 14 : ((outstatefifo.first()!=Intra4x4) ? 13: intra4x4typeTop[3]));
754 
                              intraTopValStore = intraTopVal[3];
755 
                              intraTopValChroma0Store = intraTopValChroma0[3];
756 
                              intraTopValChroma1Store = {outputVector[3],outputVector[2]};
757 
                              intraStore = {intra4x4typeTopStore,intraTopValChroma1Store,intraTopValChroma0Store,intraTopValStore};
758 
                              intraMemReqQdelay <= StoreReq {addr:{tempStoreAddr,2'b11},data:intraStore};
759 
                           end
760 
                     end
761 
               end
762 
            outPixelNum <= outPixelNum+4;
763 
            if(outPixelNum == 12)
764 
               begin
765 
                  if(outChromaFlag==0)
766 
                     begin
767 
                        outBlockNum <= outBlockNum+1;
768 
                        if(outBlockNum == 15)
769 
                           outChromaFlag <= 1;
770 
                        if(nextoutputfifo.first() == Intra4x4)
771 
                           nextoutputfifo.deq();
772 
                     end
773 
                  else
774 
                     begin
775 
                        if(outBlockNum == 7)
776 
                           begin
777 
                              outBlockNum <= 0;
778 
                              outChromaFlag <= 0;
779 
                              currMb <= currMb+1;
780 
                              currMbHor <= currMbHor+1;
781 
                              interCurrMbDiff <= interCurrMbDiff-1;
782 
                              outstatefifo.deq;
783 
                              intrastate <= Start;
784 
                              if(truncate(currMbHor)==picWidth-1 && currMbVer==picHeight-1)
785 
                                 interpolator.endOfFrame();
786 
                              nextoutputfifo.deq();
787 
                           end
788 
                        else
789 
                           outBlockNum <= outBlockNum+1;
790 
                     end
791 
               end
792 
         end
793 
   endrule
794 
 
795 
 
796 
   rule currMbHorUpdate( !(currMbHor
797 
      Bit#(PicAreaSz) temp = zeroExtend(picWidth);
798 
      if((currMbHor >> 3) >= temp)
799 
         begin
800 
            currMbHor <= currMbHor - (temp << 3);
801 
            currMbVer <= currMbVer + 8;
802 
         end
803 
      else
804 
         begin
805 
            currMbHor <= currMbHor - temp;
806 
            currMbVer <= currMbVer + 1;
807 
         end
808 
      //$display( "Trace Prediction: currMbHorUpdate %h %h", currMbHor, currMbVer);
809 
   endrule
810 
 
811 
 
812 
   // inter prediction rules
813 
 
814 
   rule interSendReq ( interReqCount>0 && currMbHor
815 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
816 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
817 
      if( currMbHorTemp >= zeroExtend(picWidth) )
818 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
819 
      Bit#(PicWidthSz) temp2 = truncate(currMbHorTemp);
820 
      Bit#(TAdd#(PicWidthSz,2)) temp = 0;
821 
      Bool noMoreReq = False;
822 
      if( currMbTemp < zeroExtend(picWidth) )
823 
         noMoreReq = True;
824 
      else
825 
         begin
826 
            if(interReqCount<5)
827 
               begin
828 
                  Bit#(2) temp3 = truncate(interReqCount-1);
829 
                  temp = {temp2,temp3};
830 
               end
831 
            else if(interReqCount==5)
832 
               begin
833 
                  if((currMbHorTemp+1)
834 
                     temp = {(temp2+1),2'b00};
835 
                  else if(currMbHorTemp>0 && currMbTemp-firstMb>zeroExtend(picWidth))
836 
                     temp = {(temp2-1),2'b11};
837 
                  else
838 
                     noMoreReq = True;
839 
               end
840 
            else if(interReqCount==6)
841 
               begin
842 
                  if((currMbHorTemp+1)0 && currMbTemp-firstMb>zeroExtend(picWidth))
843 
                     temp = {(temp2-1),2'b11};
844 
                  else
845 
                     noMoreReq = True;
846 
               end
847 
            else
848 
               noMoreReq = True;
849 
         end
850 
      if(!noMoreReq)
851 
         begin
852 
            interMemReqQ.enq(LoadReq temp);
853 
            interReqCount <= interReqCount+1;
854 
            //$display( "TRACE Prediction: interSendReq addr %0d",temp);///////////////////////
855 
         end
856 
      else
857 
         interReqCount <= 0;
858 
      $display( "Trace Prediction: interSendReq %h %h %h", interstate, interReqCount, temp);
859 
   endrule
860 
 
861 
 
862 
   rule interReceiveNoResp ( interRespCount>0 && currMbHor
863 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
864 
      if( currMbHorTemp >= zeroExtend(picWidth) )
865 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
866 
      interRespCount <= 0;
867 
      interStepCount <= 1;
868 
      interIPStepCount <= 1;
869 
      if(currMbHorTemp == 0)
870 
         begin
871 
            interLeftVal <= replicate(NotInter 0);
872 
            interTopLeftVal <= replicate(NotInter 0);
873 
         end
874 
      $display( "Trace Prediction: interReceiveNoResp %h %h", interstate, interRespCount);
875 
   endrule
876 
 
877 
 
878 
   rule interReceiveResp ( interRespCount>0 && interRespCount<7 && currMbHor
879 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
880 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
881 
      if( currMbHorTemp >= zeroExtend(picWidth) )
882 
         currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
883 
      Bool noMoreResp = False;
884 
      Bit#(2) temp2bit = 0;
885 
      InterBlockMv unpackedData = unpack(data);
886 
      Vector#(5,InterBlockMv) interTopValNext = interTopVal;
887 
      Vector#(4,InterBlockMv) interTopLeftValNext = interTopLeftVal;
888 
      if(interRespCount<5)
889 
         begin
890 
            temp2bit = truncate(interRespCount-1);
891 
            interTopValNext[temp2bit] = unpackedData;
892 
            if((interRespCount==4 || (interRespCount==1 && (interstate==InterPskip || interstate==InterP16x16 || interstate==InterP16x8)))
893 
               && (!((currMbHorTemp+1)0 && currMbTemp-firstMb>zeroExtend(picWidth))))
894 
               noMoreResp = True;
895 
         end
896 
      else if(interRespCount==5)
897 
         begin
898 
            if((currMbHorTemp+1)
899 
               begin
900 
                  interTopValNext[4] = unpackedData;
901 
                  if(!(currMbHorTemp>0 && currMbTemp-firstMb>zeroExtend(picWidth)))
902 
                     noMoreResp = True;
903 
               end
904 
            else
905 
               begin
906 
                  interTopLeftValNext[0] = unpackedData;
907 
                  noMoreResp = True;
908 
               end
909 
         end
910 
      else
911 
         begin
912 
            interTopLeftValNext[0] = unpackedData;
913 
            noMoreResp = True;
914 
         end
915 
      interMemRespQ.deq();
916 
      //$display( "TRACE Prediction: interReceiveResp data %h",data);///////////////////////
917 
      if(!noMoreResp)
918 
         interRespCount <= interRespCount+1;
919 
      else
920 
         begin
921 
            interRespCount <= 0;
922 
            interStepCount <= 1;
923 
            interIPStepCount <= 1;
924 
            if(currMbHorTemp == 0)
925 
               begin
926 
                  interLeftVal <= replicate(NotInter 0);
927 
                  interTopLeftValNext = replicate(NotInter 0);
928 
               end
929 
         end
930 
      interTopVal <= interTopValNext;
931 
      interTopLeftVal <= interTopLeftValNext;
932 
      $display( "Trace Prediction: interReceiveResp %h %h %h", interstate, interRespCount, data);
933 
   endrule
934 
 
935 
 
936 
   rule interProcessStep ( interStepCount>0 && currMbHor
937 
      Bit#(PicAreaSz) currMbTemp = currMb+zeroExtend(interCurrMbDiff)-1;
938 
      Bit#(2) blockHor = {interMbPartNum[0],interSubMbPartNum[0]};
939 
      Bit#(2) blockVer = {interMbPartNum[1],interSubMbPartNum[1]};
940 
      Bit#(3) partWidth = 0;
941 
      Bit#(3) partHeight = 0;
942 
      Bit#(3) numPart = 1;
943 
      Bit#(3) numSubPart = 1;
944 
      Bit#(2) subMbType = 0;
945 
      Bool noBlockC = False;
946 
      Bool calcmv = False;
947 
      Bool leftmv = False;
948 
      if(interstate==InterPskip || interstate==InterP16x16)
949 
         begin
950 
            partWidth = 4;
951 
            partHeight = 4;
952 
            numPart = 1;
953 
            calcmv = (interMbPartNum==0 && interSubMbPartNum==0);
954 
            leftmv = (blockHor>0);
955 
         end
956 
      else if(interstate==InterP16x8)
957 
         begin
958 
            partWidth = 4;
959 
            partHeight = 2;
960 
            numPart = 2;
961 
            if(interMbPartNum==2)
962 
               noBlockC = True;
963 
            calcmv = (interMbPartNum[0]==0 && interSubMbPartNum==0);
964 
            leftmv = (blockHor>0);
965 
         end
966 
      else if(interstate==InterP8x16)
967 
         begin
968 
            partWidth = 2;
969 
            partHeight = 4;
970 
            numPart = 2;
971 
            calcmv = (interMbPartNum[1]==0 && interSubMbPartNum==0);
972 
            leftmv = !(blockVer>0);
973 
         end
974 
      else if(interstate==InterP8x8 || interstate==InterP8x8ref0)
975 
         begin
976 
            numPart = 4;
977 
            subMbType = interSubMbTypeVector[interMbPartNum];
978 
            numSubPart = numSubMbPart(subMbType);
979 
            case(subMbType)
980 
               0:
981 
               begin
982 
                  partWidth = 2;
983 
                  partHeight = 2;
984 
                  if(interMbPartNum==3)
985 
                     noBlockC = True;
986 
                  calcmv = (interSubMbPartNum==0);
987 
                  leftmv = (blockHor[0]>0);
988 
               end
989 
               1:
990 
               begin
991 
                  partWidth = 2;
992 
                  partHeight = 1;
993 
                  if(interSubMbPartNum==2)
994 
                     noBlockC = True;
995 
                  calcmv = (interSubMbPartNum[0]==0);
996 
                  leftmv = True;
997 
               end
998 
               2:
999 
               begin
1000 
                  partWidth = 1;
1001 
                  partHeight = 2;
1002 
                  calcmv = (interSubMbPartNum[1]==0);
1003 
                  leftmv = False;
1004 
               end
1005 
               3:
1006 
               begin
1007 
                  partWidth = 1;
1008 
                  partHeight = 1;
1009 
                  if(interSubMbPartNum==3)
1010 
                     noBlockC = True;
1011 
                  calcmv = True;
1012 
               end
1013 
            endcase
1014 
         end
1015 
      else
1016 
         $display( "ERROR Prediction: interProcessStep unexpected interstate");
1017 
      Bit#(4) refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interMbPartNum]);
1018 
      Vector#(3,InterBlockMv) blockABC = replicate(NotInter 0);
1019 
      if( currMbTemp-firstMb==0 && blockHor==0 )
1020 
         blockABC[0] = (NotInter 0);
1021 
      else
1022 
         blockABC[0] = interLeftVal[blockVer];
1023 
      if( currMbTemp-firstMb
1024 
         blockABC[1] = (NotInter 0);
1025 
      else
1026 
         blockABC[1] = interTopVal[blockHor];
1027 
      blockABC[2] = interTopVal[{1'b0,blockHor}+partWidth];
1028 
      if(noBlockC || blockABC[2]==(NotInter 0))
1029 
         blockABC[2] = interTopLeftVal[blockVer];
1030 
      Bit#(14) mvhorfinal = 0;
1031 
      Bit#(12) mvverfinal = 0;
1032 
      Bit#(5) interNewestMvNext = 0;
1033 
      if(calcmv)//motion vector caculation
1034 
         begin
1035 
            Vector#(3,Int#(14)) mvhorABC = replicate(0);
1036 
            Vector#(3,Int#(12)) mvverABC = replicate(0);
1037 
            Bit#(2) validCount = 0;
1038 
            Bit#(14) mvhorPred = 0;
1039 
            Bit#(12) mvverPred = 0;
1040 
            for(Integer ii=0; ii<3; ii=ii+1)
1041 
               begin
1042 
                  if(blockABC[ii] matches tagged BlockMv .xdata)
1043 
                     begin
1044 
                        mvhorABC[ii] = unpack(xdata.mvhor);
1045 
                        mvverABC[ii] = unpack(xdata.mvver);
1046 
                        if(xdata.refIdx == refIndex)
1047 
                           begin
1048 
                              validCount = validCount+1;
1049 
                              mvhorPred = xdata.mvhor;
1050 
                              mvverPred = xdata.mvver;
1051 
                           end
1052 
                     end
1053 
                  else
1054 
                     begin
1055 
                        mvhorABC[ii] = 0;
1056 
                        mvverABC[ii] = 0;
1057 
                     end
1058 
               end
1059 
            if(validCount != 1)//median
1060 
               begin
1061 
                  if(mvhorABC[0]>mvhorABC[1] && mvhorABC[0]>mvhorABC[2])
1062 
                     mvhorPred = pack((mvhorABC[1]>mvhorABC[2]) ? mvhorABC[1] : mvhorABC[2]);
1063 
                  else if(mvhorABC[0]
1064 
                     mvhorPred = pack((mvhorABC[1]
1065 
                  else
1066 
                     mvhorPred = pack(mvhorABC[0]);
1067 
                  if(mvverABC[0]>mvverABC[1] && mvverABC[0]>mvverABC[2])
1068 
                     mvverPred = pack((mvverABC[1]>mvverABC[2]) ? mvverABC[1] : mvverABC[2]);
1069 
                  else if(mvverABC[0]
1070 
                     mvverPred = pack((mvverABC[1]
1071 
                  else
1072 
                     mvverPred = pack(mvverABC[0]);
1073 
               end
1074 
            if(interstate==InterPskip)
1075 
               begin
1076 
                  for(Integer ii=0; ii<2; ii=ii+1)
1077 
                     begin
1078 
                        if(blockABC[ii] matches tagged BlockMv .xdata)
1079 
                           begin
1080 
                              if(xdata.refIdx==0 && xdata.mvhor==0 && xdata.mvver==0)
1081 
                                 begin
1082 
                                    mvhorPred = 0;
1083 
                                    mvverPred = 0;
1084 
                                 end
1085 
                           end
1086 
                        else if(blockABC[ii] matches tagged NotInter 0)
1087 
                           begin
1088 
                              mvhorPred = 0;
1089 
                              mvverPred = 0;
1090 
                           end
1091 
                     end
1092 
               end
1093 
            else if(interstate==InterP16x8 || interstate==InterP8x16)
1094 
               begin
1095 
                  InterBlockMv blockCheck;
1096 
                  if(interstate==InterP16x8)
1097 
                     begin
1098 
                        if(interMbPartNum==0)
1099 
                           blockCheck = blockABC[1];
1100 
                        else
1101 
                           blockCheck = blockABC[0];
1102 
                     end
1103 
                  else
1104 
                     begin
1105 
                        if(interMbPartNum==0)
1106 
                           blockCheck = blockABC[0];
1107 
                        else
1108 
                           blockCheck = blockABC[2];
1109 
                     end
1110 
                  if(blockCheck matches tagged BlockMv .xdata &&& xdata.refIdx==refIndex)
1111 
                     begin
1112 
                        mvhorPred = xdata.mvhor;
1113 
                        mvverPred = xdata.mvver;
1114 
                     end
1115 
               end
1116 
            mvhorfinal = mvhorPred;
1117 
            mvverfinal = mvverPred;
1118 
            if(interstate!=InterPskip)
1119 
               begin
1120 
                  mvhorfinal = truncate(tpl_1(interMvDiff.first()) + signExtend(mvhorPred));
1121 
                  mvverfinal = truncate(tpl_2(interMvDiff.first()) + signExtend(mvverPred));
1122 
                  interMvDiff.deq();
1123 
               end
1124 
            interMvFile.upd({interMbPartNum,interSubMbPartNum},tuple2(mvhorfinal,mvverfinal));
1125 
            interNewestMvNext = zeroExtend({interMbPartNum,interSubMbPartNum})+1;
1126 
            $display( "Trace Prediction: interProcessStep %h %h %h %h %h %h %h %h %h", interstate, interStepCount, interMbPartNum, interSubMbPartNum, pack(blockABC[0]), pack(blockABC[1]), pack(blockABC[2]), mvhorPred, mvverPred);
1127 
         end
1128 
      else
1129 
         begin
1130 
            if(leftmv)
1131 
               begin
1132 
                  if(blockABC[0] matches tagged BlockMv .xdata)
1133 
                     begin
1134 
                        mvhorfinal = unpack(xdata.mvhor);
1135 
                        mvverfinal = unpack(xdata.mvver);
1136 
                     end
1137 
                  else
1138 
                     $display( "ERROR Prediction: interProcessStep unexpected blockABC[0]");
1139 
               end
1140 
            else
1141 
               begin
1142 
                  if(blockABC[1] matches tagged BlockMv .xdata)
1143 
                     begin
1144 
                        mvhorfinal = unpack(xdata.mvhor);
1145 
                        mvverfinal = unpack(xdata.mvver);
1146 
                     end
1147 
                  else
1148 
                     $display( "ERROR Prediction: interProcessStep unexpected blockABC[1]");
1149 
               end
1150 
         end
1151 
      Bit#(2) tempBShor = 0;//bS calculation
1152 
      Bit#(2) tempBSver = 0;
1153 
      if(interLeftVal[blockVer] matches tagged BlockMv .xdata)
1154 
         begin
1155 
            if(xdata.nonZeroTransCoeff == 1)
1156 
               tempBShor = 2;
1157 
            else
1158 
               begin
1159 
                  if(xdata.refIdx!=refIndex || absDiffGEFour14(mvhorfinal,xdata.mvhor) || absDiffGEFour12(mvverfinal,xdata.mvver))
1160 
                     tempBShor = 1;
1161 
                  else
1162 
                     tempBShor = 0;
1163 
               end
1164 
         end
1165 
      else
1166 
         tempBShor = 3;
1167 
      if(interTopVal[blockHor] matches tagged BlockMv .xdata)
1168 
         begin
1169 
            if(xdata.nonZeroTransCoeff == 1)
1170 
               tempBSver = 2;
1171 
            else
1172 
               begin
1173 
                  if(xdata.refIdx!=refIndex || absDiffGEFour14(mvhorfinal,xdata.mvhor) || absDiffGEFour12(mvverfinal,xdata.mvver))
1174 
                     tempBSver = 1;
1175 
                  else
1176 
                     tempBSver = 0;
1177 
               end
1178 
         end
1179 
      else
1180 
         tempBSver = 3;
1181 
      interBSfifo.enq(tuple2(tempBShor,tempBSver));
1182 
      Vector#(5,InterBlockMv) interTopValNext = interTopVal;//update inter*Val
1183 
      Vector#(4,InterBlockMv) interLeftValNext = interLeftVal;
1184 
      Vector#(4,InterBlockMv) interTopLeftValNext = interTopLeftVal;
1185 
      interLeftValNext[blockVer] = (BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1186 
      interTopValNext[blockHor] = (BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1187 
      interTopLeftValNext[blockVer] = interTopVal[blockHor];
1188 
      interTopVal <= interTopValNext;
1189 
      interLeftVal <= interLeftValNext;
1190 
      interTopLeftVal <= interTopLeftValNext;
1191 
      if(blockVer == 3)
1192 
         interOutBlockMvfifo.enq(BlockMv {refIdx:refIndex,mvhor:mvhorfinal,mvver:mvverfinal,nonZeroTransCoeff:0});
1193 
      if(interSubMbPartNum == 3)//next step
1194 
         begin
1195 
            interSubMbPartNum <= 0;
1196 
            if(interMbPartNum == 3)
1197 
               begin
1198 
                  interMbPartNum <= 0;
1199 
                  interStepCount <= 0;
1200 
                  interNewestMvNext = 16;
1201 
               end
1202 
            else
1203 
               interMbPartNum <= interMbPartNum+1;
1204 
         end
1205 
      else
1206 
         interSubMbPartNum <= interSubMbPartNum+1;
1207 
      if(interNewestMvNext > 0)
1208 
         interNewestMv <= interNewestMvNext;
1209 
   endrule
1210 
 
1211 
 
1212 
   rule interIPProcessStep ( interIPStepCount>0 && currMbHorzeroExtend({interIPMbPartNum,interIPSubMbPartNum}) );
1213 
      Bit#(PicAreaSz) currMbHorTemp = currMbHor+zeroExtend(interCurrMbDiff)-1;
1214 
      Bit#(PicHeightSz) currMbVerTemp = currMbVer;
1215 
      if( currMbHorTemp >= zeroExtend(picWidth) )
1216 
         begin
1217 
            currMbHorTemp = currMbHorTemp-zeroExtend(picWidth);
1218 
            currMbVerTemp = currMbVerTemp+1;
1219 
         end
1220 
      Bit#(2) blockHor = {interIPMbPartNum[0],interIPSubMbPartNum[0]};
1221 
      Bit#(2) blockVer = {interIPMbPartNum[1],interIPSubMbPartNum[1]};
1222 
      Bit#(3) numPart = 1;
1223 
      Bit#(3) numSubPart = 1;
1224 
      Bit#(2) subMbType = 0;
1225 
      if(interstate==InterPskip || interstate==InterP16x16)
1226 
         numPart = 1;
1227 
      else if(interstate==InterP16x8)
1228 
         numPart = 2;
1229 
      else if(interstate==InterP8x16)
1230 
         numPart = 2;
1231 
      else if(interstate==InterP8x8 || interstate==InterP8x8ref0)
1232 
         begin
1233 
            numPart = 4;
1234 
            subMbType = interSubMbTypeVector[interIPMbPartNum];
1235 
            numSubPart = numSubMbPart(subMbType);
1236 
         end
1237 
      else
1238 
         $display( "ERROR Prediction: interIPProcessStep unexpected interstate");
1239 
      Bit#(4) refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interIPMbPartNum]);
1240 
      Bit#(PicWidthSz) currMbHorT = truncate(currMbHorTemp);
1241 
      Bit#(TAdd#(PicWidthSz,2)) horTemp = {currMbHorT,blockHor};
1242 
      Bit#(TAdd#(PicHeightSz,4)) verTemp = {currMbVerTemp,blockVer,2'b00};
1243 
      IPBlockType btTemp = IP16x16;
1244 
      if(interstate==InterPskip || interstate==InterP16x16)
1245 
         btTemp = IP16x16;
1246 
      else if(interstate==InterP16x8)
1247 
         btTemp = IP16x8;
1248 
      else if(interstate==InterP8x16)
1249 
         btTemp = IP8x16;
1250 
      else
1251 
         begin
1252 
            case(subMbType)
1253 
               0: btTemp = IP8x8;
1254 
               1: btTemp = IP8x4;
1255 
               2: btTemp = IP4x8;
1256 
               3: btTemp = IP4x4;
1257 
            endcase
1258 
         end
1259 
      Bit#(14) mvhorTemp = tpl_1(interMvFile.sub({interIPMbPartNum,interIPSubMbPartNum}));
1260 
      Bit#(12) mvverTemp = tpl_2(interMvFile.sub({interIPMbPartNum,interIPSubMbPartNum}));
1261 
      if(interIPStepCount == 1)
1262 
         begin
1263 
            if(!(interstate==InterP8x8 || interstate==InterP8x8ref0))
1264 
               begin
1265 
                  numPart = 4;
1266 
                  Bit#(2) interIPMbPartNumTemp = interIPMbPartNum;
1267 
                  if(btTemp==IP16x16)
1268 
                     interIPMbPartNumTemp = 0;
1269 
                  else if(btTemp==IP16x8 && interIPMbPartNumTemp[0]==1)
1270 
                     interIPMbPartNumTemp = interIPMbPartNumTemp-1;
1271 
                  else if(btTemp==IP8x16 && interIPMbPartNumTemp[1]==1)
1272 
                     interIPMbPartNumTemp = interIPMbPartNumTemp-2;
1273 
                  refIndex = ((interstate==InterPskip||interstate==InterP8x8ref0) ? 0 : interRefIdxVector[interIPMbPartNumTemp]);
1274 
                  btTemp = IP8x8;
1275 
                  mvhorTemp = tpl_1(interMvFile.sub({interIPMbPartNumTemp,2'b00}));
1276 
                  mvverTemp = tpl_2(interMvFile.sub({interIPMbPartNumTemp,2'b00}));
1277 
                  interpolator.request(IPLuma {refIdx:refIndex,hor:horTemp,ver:verTemp,mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1278 
               end
1279 
            else
1280 
               interpolator.request(IPLuma {refIdx:refIndex,hor:horTemp,ver:verTemp,mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1281 
         end
1282 
      else
1283 
         interpolator.request(IPChroma {refIdx:refIndex,uv:interIPStepCount[0],hor:horTemp,ver:truncate(verTemp>>1),mvhor:mvhorTemp,mvver:mvverTemp,bt:btTemp});
1284 
      if(interIPSubMbPartNum >= truncate(numSubPart-1))
1285 
         begin
1286 
            interIPSubMbPartNum <= 0;
1287 
            if(interIPMbPartNum >= truncate(numPart-1))
1288 
               begin
1289 
                  interIPMbPartNum <= 0;
1290 
                  interIPStepCount <= interIPStepCount+1;
1291 
               end
1292 
            else
1293 
               begin
1294 
                  if(btTemp == IP16x8)
1295 
                     interIPMbPartNum <= 2;
1296 
                  else
1297 
                     interIPMbPartNum <= interIPMbPartNum+1;
1298 
               end
1299 
         end
1300 
      else
1301 
         begin
1302 
            if(subMbType == 1)
1303 
               interIPSubMbPartNum <= 2;
1304 
            else
1305 
               interIPSubMbPartNum <= interIPSubMbPartNum+1;
1306 
         end
1307 
      $display( "Trace Prediction: interIPProcessStep %h %h %h %h %h %h %h %h %h %h", interstate, interIPStepCount, interIPMbPartNum, interIPSubMbPartNum, refIndex, horTemp, verTemp, mvhorTemp, mvverTemp, pack(btTemp));
1308 
   endrule
1309 
 
1310 
 
1311 
   rule interDone ( interstate!=Start && interReqCount==0 && interRespCount==0 && interStepCount==0 && interIPStepCount==0 );
1312 
      interstate <= Start;
1313 
      //$display( "Trace Prediction: interOutputTransfer %h %h", interstate, interOutputCount);
1314 
   endrule
1315 
 
1316 
 
1317 
   rule interOutputTransfer ( True );
1318 
      predictedfifo.enq(interpolator.first());
1319 
      interpolator.deq();
1320 
      //$display( "Trace Prediction: interOutputTransfer %h %h", interstate, interOutputCount);
1321 
   endrule
1322 
 
1323 
 
1324 
 
1325 
   // intra prediction rules
1326 
 
1327 
   rule intraSendReq ( intraReqCount>0 && currMbHor
1328 
      Bit#(PicWidthSz) temp2 = truncate(currMbHor);
1329 
      Bit#(TAdd#(PicWidthSz,2)) temp = 0;
1330 
      Bit#(1) noMoreReq = 0;
1331 
      if( currMb-firstMb < zeroExtend(picWidth) )
1332 
         noMoreReq = 1;
1333 
      else
1334 
         begin
1335 
            if(intraReqCount<5)
1336 
               begin
1337 
                  Bit#(2) temp3 = truncate(intraReqCount-1);
1338 
                  temp = {temp2,temp3};
1339 
               end
1340 
            else if(intraReqCount==5)
1341 
               begin
1342 
                  if((currMbHor+1)
1343 
                     temp = {(temp2+1),2'b00};
1344 
                  else if(currMbHor>0 && currMb-firstMb>zeroExtend(picWidth))
1345 
                     temp = {(temp2-1),2'b11};
1346 
                  else
1347 
                     noMoreReq = 1;
1348 
               end
1349 
            else if(intraReqCount==6)
1350 
               begin
1351 
                  if((currMbHor+1)0 && currMb-firstMb>zeroExtend(picWidth))
1352 
                     temp = {(temp2-1),2'b11};
1353 
                  else
1354 
                     noMoreReq = 1;
1355 
               end
1356 
            else
1357 
               noMoreReq = 1;
1358 
         end
1359 
      if(noMoreReq == 0)
1360 
         begin
1361 
            intraMemReqQ.enq(LoadReq temp);
1362 
            intraReqCount <= intraReqCount+1;
1363 
            //$display( "TRACE Prediction: intraSendReq addr %0d",temp);///////////////////////
1364 
         end
1365 
      else
1366 
         intraReqCount <= 0;
1367 
      $display( "Trace Prediction: intraSendReq");
1368 
   endrule
1369 
 
1370 
 
1371 
   rule intraReceiveNoResp ( intraRespCount>0 && currMbHor
1372 
      intra4x4typeTop <= replicate(15);
1373 
      intraRespCount <= 0;
1374 
      intraStepCount <= 1;
1375 
      blockNum <= 0;
1376 
      pixelNum <= 0;
1377 
      interOutBlockMvfifo.enq(NotInter 1);
1378 
      $display( "Trace Prediction: intraReceiveNoResp");
1379 
   endrule
1380 
 
1381 
 
1382 
   rule intraReceiveResp ( intraRespCount>0 && intraRespCount<7 && currMbHor
1383 
      Bit#(1) noMoreResp = 0;
1384 
      Bit#(2) temp2bit = 0;
1385 
      if(intraRespCount<5)
1386 
         begin
1387 
            temp2bit = truncate(intraRespCount-1);
1388 
            intra4x4typeTop <= update(intra4x4typeTop, temp2bit, data[67:64]);
1389 
            if(intraRespCount==4)
1390 
               begin
1391 
                  Vector#(5,Bit#(32)) intraTopValTemp = intraTopVal;
1392 
                  intraTopValTemp[3] = data[31:0];
1393 
                  intraTopValTemp[4] = {data[31:24],data[31:24],data[31:24],data[31:24]};
1394 
                  intraTopVal <= intraTopValTemp;
1395 
                  if(!((currMbHor+1)0 && currMb-firstMb>zeroExtend(picWidth)))
1396 
                     noMoreResp = 1;
1397 
               end
1398 
            else
1399 
               intraTopVal <= update(intraTopVal, intraRespCount-1, data[31:0]);
1400 
            intraTopValChroma0 <= update(intraTopValChroma0, temp2bit, data[47:32]);
1401 
            intraTopValChroma1 <= update(intraTopValChroma1, temp2bit, data[63:48]);
1402 
         end
1403 
      else if(intraRespCount==5)
1404 
         begin
1405 
            if((currMbHor+1)
1406 
               begin
1407 
                  if(!(data[67:64]==15 || (data[67:64]==14 && ppsconstrained_intra_pred_flag==1)))
1408 
                     intraTopVal <= update(intraTopVal, 4, data[31:0]);
1409 
                  if(!(currMbHor>0 && currMb-firstMb>zeroExtend(picWidth)))
1410 
                     noMoreResp = 1;
1411 
               end
1412 
            else
1413 
               begin
1414 
                  Bit#(40) temp2 = intraLeftVal[0];
1415 
                  intraLeftVal <= update(intraLeftVal, 0, {temp2[39:8],data[31:24]});
1416 
                  intraLeftValChroma0 <= update(intraLeftValChroma0, 0, data[47:40]);
1417 
                  intraLeftValChroma1 <= update(intraLeftValChroma1, 0, data[63:56]);
1418 
                  noMoreResp = 1;
1419 
               end
1420 
         end
1421 
      else
1422 
         begin
1423 
            Bit#(40) temp2 = intraLeftVal[0];
1424 
            intraLeftVal <= update(intraLeftVal, 0, {temp2[39:8],data[31:24]});
1425 
            intraLeftValChroma0 <= update(intraLeftValChroma0, 0, data[47:40]);
1426 
            intraLeftValChroma1 <= update(intraLeftValChroma1, 0, data[63:56]);
1427 
            noMoreResp = 1;
1428 
         end
1429 
      intraMemRespQ.deq();
1430 
      //$display( "TRACE Prediction: intraReceiveResp data %h",data);///////////////////////
1431 
      if(noMoreResp == 0)
1432 
         intraRespCount <= intraRespCount+1;
1433 
      else
1434 
         begin
1435 
            intraRespCount <= 0;
1436 
            intraStepCount <= 1;
1437 
            blockNum <= 0;
1438 
            pixelNum <= 0;
1439 
            interOutBlockMvfifo.enq(NotInter 1);
1440 
         end
1441 
      $display( "Trace Prediction: intraReceiveResp");
1442 
   endrule
1443 
 
1444 
 
1445 
   rule intraPredTypeStep ( intraStepCount==1 && !nextoutputfifo.notEmpty());
1446 
      Bit#(2) blockHor = {blockNum[2],blockNum[0]};
1447 
      Bit#(2) blockVer = {blockNum[3],blockNum[1]};
1448 
      Bit#(4) topType = select(intra4x4typeTop, blockHor);
1449 
      Bit#(4) leftType;
1450 
      if(currMbHor!=0 || blockNum!=0)
1451 
         leftType = select(intra4x4typeLeft, blockVer);
1452 
      else
1453 
         begin
1454 
            leftType = 15;
1455 
            intra4x4typeLeft <= replicate(15);
1456 
         end
1457 
      if(intrastate!=Intra4x4)
1458 
         begin
1459 
            intraStepCount <= intraStepCount+1;
1460 
            nextoutputfifo.enq(NonSkipMB);
1461 
         end
1462 
      else
1463 
         begin
1464 
            Bit#(1) topAvailable;
1465 
            Bit#(1) leftAvailable;
1466 
            if(topType==15 || (topType==14 && ppsconstrained_intra_pred_flag==1))
1467 
               topAvailable = 0;
1468 
            else
1469 
               topAvailable = 1;
1470 
            if(leftType==15 || (leftType==14 && ppsconstrained_intra_pred_flag==1))
1471 
               leftAvailable = 0;
1472 
            else
1473 
               leftAvailable = 1;
1474 
            Bit#(4) predType = 0;
1475 
            Bit#(4) remType = rem_intra4x4_pred_mode.first();
1476 
            Bit#(4) curType = 0;
1477 
            rem_intra4x4_pred_mode.deq();
1478 
            if(topAvailable==0 || leftAvailable==0)
1479 
               predType = 2;
1480 
            else
1481 
               begin
1482 
                  Bit#(4) topType2 = topType;
1483 
                  Bit#(4) leftType2 = leftType;
1484 
                  if(topType>8)
1485 
                     topType2 = 2;
1486 
                  if(leftType>8)
1487 
                     leftType2 = 2;
1488 
                  if(topType2 > leftType2)
1489 
                     predType = leftType2;
1490 
                  else
1491 
                     predType = topType2;
1492 
               end
1493 
            if(remType[3] == 1)
1494 
               curType = predType;
1495 
            else if(remType < predType)
1496 
               curType = remType;
1497 
            else
1498 
               curType = remType+1;
1499 
            cur_intra4x4_pred_mode <= curType;
1500 
            intraStepCount <= intraStepCount+1;
1501 
            if(blockNum == 15)
1502 
               nextoutputfifo.enq(Intra4x4PlusChroma);
1503 
            else
1504 
               nextoutputfifo.enq(Intra4x4);
1505 
            $display( "TRACE Prediction: intraPredTypeStep currMbHor currMbVer blockNum topType leftType predType remType curType %0d %0d %0d %0d %0d %0d %0d %0d",currMbHor,currMbVer,blockNum,topType,leftType,predType,remType,curType);//////////////////
1506 
         end
1507 
      //$display( "Trace Prediction: intraPredTypeStep");
1508 
   endrule
1509 
 
1510 
 
1511 
   rule intraProcessStep ( intraStepCount>1 );
1512 
      $display( "TRACE Prediction: intraProcessStep %0d %0d", blockNum, pixelNum);////////////////////
1513 
      //$display( "TRACE Prediction: intraProcessStep intraTopVal %h %h %h %h %h",intraTopVal[4],intraTopVal[3],intraTopVal[2],intraTopVal[1],intraTopVal[0]);/////////////////
1514 
      Bit#(1) outFlag  = 0;
1515 
      Bit#(4) nextIntraStepCount = intraStepCount+1;
1516 
      Bit#(2) blockHor = {blockNum[2],blockNum[0]};
1517 
      Bit#(2) blockVer = {blockNum[3],blockNum[1]};
1518 
      Bit#(2) pixelVer = {pixelNum[3],pixelNum[2]};
1519 
      Vector#(4,Bit#(8)) predVector = replicate(0);
1520 
 
1521 
      Bit#(4) topType = select(intra4x4typeTop, blockHor);
1522 
      Bit#(4) leftType = select(intra4x4typeLeft, blockVer);
1523 
      Bit#(1) topAvailable;
1524 
      Bit#(1) leftAvailable;
1525 
      if(topType==15 || (topType==14 && ppsconstrained_intra_pred_flag==1))
1526 
         topAvailable = 0;
1527 
      else
1528 
         topAvailable = 1;
1529 
      if(leftType==15 || (leftType==14 && ppsconstrained_intra_pred_flag==1))
1530 
         leftAvailable = 0;
1531 
      else
1532 
         leftAvailable = 1;
1533 
      if(blockNum==0 && pixelNum==0 && intraChromaFlag==0)
1534 
         begin
1535 
            intraChromaTopAvailable <= topAvailable;
1536 
            intraChromaLeftAvailable <= leftAvailable;
1537 
         end
1538 
      if(intrastate==Intra4x4 && intraChromaFlag==0)
1539 
         begin
1540 
            if(intraStepCount==2)
1541 
               begin
1542 
                  outFlag = 1;
1543 
                  Bit#(40) leftValSet = select(intraLeftVal,blockVer);
1544 
                  Bit#(32) topMidValSet = select(intraTopVal,zeroExtend(blockHor));
1545 
                  Bit#(32) topRightValSet = select(intraTopVal,{1'b0,blockHor}+1);
1546 
                  Bit#(72) topValSet;
1547 
                  if((blockNum[3:2]==3 && blockNum[0]==1) || blockNum[1:0]==3)
1548 
                     topValSet = {topMidValSet[31:24],topMidValSet[31:24],topMidValSet[31:24],topMidValSet[31:24],topMidValSet,leftValSet[7:0]};
1549 
                  else
1550 
                     topValSet = {topRightValSet,topMidValSet,leftValSet[7:0]};
1551 
                  $display( "TRACE Prediction: intraProcessStep intra4x4 %0d %0d %h %h", cur_intra4x4_pred_mode, blockNum, leftValSet, topValSet);////////////////////
1552 
                  Bit#(4) topSelect1 = 0;
1553 
                  Bit#(4) topSelect2 = 0;
1554 
                  Bit#(4) topSelect3 = 0;
1555 
                  Bit#(3) leftSelect1 = 0;
1556 
                  Bit#(3) leftSelect2 = 0;
1557 
                  Bit#(3) leftSelect3 = 0;
1558 
                  Bit#(10) tempVal1 = 0;
1559 
                  Bit#(10) tempVal2 = 0;
1560 
                  Bit#(10) tempVal3 = 0;
1561 
                  case(cur_intra4x4_pred_mode)
1562 
                     0://vertical
1563 
                     begin
1564 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1565 
                           begin
1566 
                              topSelect1 = fromInteger(pixelHor);
1567 
                              Bit#(8) topVal = intra4x4SelectTop(topValSet,topSelect1);
1568 
                              predVector[pixelHor] = topVal;
1569 
                           end
1570 
                     end
1571 
                     1://horizontal
1572 
                     begin
1573 
                        leftSelect1 = zeroExtend(pixelVer);
1574 
                        Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,leftSelect1);
1575 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1576 
                           predVector[pixelHor] = leftVal;
1577 
                     end
1578 
                     2://dc
1579 
                     begin
1580 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1581 
                           begin
1582 
                              Bit#(10) tempTopSum = zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24])+zeroExtend(topValSet[39:32]) + 2;
1583 
                              Bit#(10) tempLeftSum = zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]) + 2;
1584 
                              Bit#(11) tempTotalSum = zeroExtend(tempTopSum)+zeroExtend(tempLeftSum);
1585 
                              Bit#(8) topSum = tempTopSum[9:2];
1586 
                              Bit#(8) leftSum = tempLeftSum[9:2];
1587 
                              Bit#(8) totalSum = tempTotalSum[10:3];
1588 
                              if(topAvailable==1 && leftAvailable==1)
1589 
                                 predVector[pixelHor] = totalSum;
1590 
                              else if(topAvailable==1)
1591 
                                 predVector[pixelHor] = topSum;
1592 
                              else if(leftAvailable==1)
1593 
                                 predVector[pixelHor] = leftSum;
1594 
                              else
1595 
                                 predVector[pixelHor] = 8'b10000000;
1596 
                           end
1597 
                     end
1598 
                     3://diagonal down left
1599 
                     begin
1600 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1601 
                           begin
1602 
                              Bit#(4) selectNum = fromInteger(pixelHor)+zeroExtend(pixelVer);
1603 
                              if(pixelHor==3 && pixelVer==3)
1604 
                                 begin
1605 
                                    topSelect1 = 6;
1606 
                                    topSelect2 = 7;
1607 
                                    topSelect3 = 7;
1608 
                                 end
1609 
                              else
1610 
                                 begin
1611 
                                    topSelect1 = selectNum;
1612 
                                    topSelect2 = selectNum+1;
1613 
                                    topSelect3 = selectNum+2;
1614 
                                 end
1615 
                              tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1616 
                              tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1617 
                              tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1618 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1619 
                              predVector[pixelHor] = predVal[9:2];
1620 
                           end
1621 
                     end
1622 
                     4://diagonal down right
1623 
                     begin
1624 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1625 
                           begin
1626 
                              if(fromInteger(pixelHor) > pixelVer)
1627 
                                 begin
1628 
                                    topSelect3 = fromInteger(pixelHor)-zeroExtend(pixelVer);
1629 
                                    topSelect2 = topSelect3-1;
1630 
                                    topSelect1 = topSelect3-2;
1631 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1632 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1633 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1634 
                                 end
1635 
                              else if(fromInteger(pixelHor) < pixelVer)
1636 
                                 begin
1637 
                                    leftSelect3 = zeroExtend(pixelVer)-fromInteger(pixelHor);
1638 
                                    leftSelect2 = leftSelect3-1;
1639 
                                    leftSelect1 = leftSelect3-2;
1640 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1641 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1642 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1643 
                                 end
1644 
                              else
1645 
                                 begin
1646 
                                    leftSelect1 = 0;
1647 
                                    leftSelect2 = -1;
1648 
                                    topSelect1 = 0;
1649 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1650 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1651 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1652 
                                 end
1653 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1654 
                              predVector[pixelHor] = predVal[9:2];
1655 
                           end
1656 
                     end
1657 
                     5://vertical right
1658 
                     begin
1659 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1660 
                           begin
1661 
                              Bit#(4) tempPixelHor = fromInteger(pixelHor);
1662 
                              Bit#(4) zVR = (tempPixelHor<<1)-zeroExtend(pixelVer);
1663 
                              if(zVR<=6 && zVR>=0)
1664 
                                 begin
1665 
                                    topSelect3 = fromInteger(pixelHor)-zeroExtend(pixelVer>>1);
1666 
                                    topSelect2 = topSelect3-1;
1667 
                                    if(zVR==1 || zVR==3 || zVR==5)
1668 
                                       topSelect1 = topSelect3-2;
1669 
                                    else
1670 
                                       topSelect1 = topSelect3;
1671 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1672 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1673 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1674 
                                 end
1675 
                              else if(zVR==-1)
1676 
                                 begin
1677 
                                    leftSelect1 = 0;
1678 
                                    leftSelect2 = -1;
1679 
                                    topSelect1 = 0;
1680 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1681 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1682 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1683 
                                 end
1684 
                              else
1685 
                                 begin
1686 
                                    leftSelect1 = zeroExtend(pixelVer)-1;
1687 
                                    leftSelect2 = leftSelect1-1;
1688 
                                    leftSelect3 = leftSelect1-2;
1689 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1690 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1691 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1692 
                                 end
1693 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1694 
                              predVector[pixelHor] = predVal[9:2];
1695 
                           end
1696 
                     end
1697 
                     6://horizontal down
1698 
                     begin
1699 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1700 
                           begin
1701 
                              Bit#(4) tempPixelVer = zeroExtend(pixelVer);
1702 
                              Bit#(4) zHD = (tempPixelVer<<1)-fromInteger(pixelHor);
1703 
                              if(zHD<=6 && zHD>=0)
1704 
                                 begin
1705 
                                    leftSelect3 = zeroExtend(pixelVer)-fromInteger(pixelHor/2);
1706 
                                    leftSelect2 = leftSelect3-1;
1707 
                                    if(zHD==1 || zHD==3 || zHD==5)
1708 
                                       leftSelect1 = leftSelect3-2;
1709 
                                    else
1710 
                                       leftSelect1 = leftSelect3;
1711 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1712 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1713 
                                    tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1714 
                                 end
1715 
                              else if(zHD==-1)
1716 
                                 begin
1717 
                                    leftSelect1 = 0;
1718 
                                    leftSelect2 = -1;
1719 
                                    topSelect1 = 0;
1720 
                                    tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1721 
                                    tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1722 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1723 
                                 end
1724 
                              else
1725 
                                 begin
1726 
                                    topSelect1 = fromInteger(pixelHor)-1;
1727 
                                    topSelect2 = topSelect1-1;
1728 
                                    topSelect3 = topSelect1-2;
1729 
                                    tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1730 
                                    tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1731 
                                    tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1732 
                                 end
1733 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1734 
                              predVector[pixelHor] = predVal[9:2];
1735 
                           end
1736 
                     end
1737 
                     7://vertical left
1738 
                     begin
1739 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1740 
                           begin
1741 
                              topSelect1 = fromInteger(pixelHor)+zeroExtend(pixelVer>>1);
1742 
                              topSelect2 = topSelect1+1;
1743 
                              if(pixelVer==1 || pixelVer==3)
1744 
                                 topSelect3 = topSelect1+2;
1745 
                              else
1746 
                                 topSelect3 = topSelect1;
1747 
                              tempVal1 = zeroExtend(intra4x4SelectTop(topValSet,topSelect1));
1748 
                              tempVal2 = zeroExtend(intra4x4SelectTop(topValSet,topSelect2));
1749 
                              tempVal3 = zeroExtend(intra4x4SelectTop(topValSet,topSelect3));
1750 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1751 
                              predVector[pixelHor] = predVal[9:2];
1752 
                           end
1753 
                     end
1754 
                     8://horizontal up
1755 
                     begin
1756 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1757 
                           begin
1758 
                              Bit#(4) tempPixelVer = zeroExtend(pixelVer);
1759 
                              Bit#(4) zHU = (tempPixelVer<<1)+fromInteger(pixelHor);
1760 
                              if(zHU<=4)
1761 
                                 begin
1762 
                                    leftSelect1 = zeroExtend(pixelVer)+fromInteger(pixelHor/2);
1763 
                                    leftSelect2 = leftSelect1+1;
1764 
                                    if(zHU==1 || zHU==3)
1765 
                                       leftSelect3 = leftSelect1+2;
1766 
                                    else
1767 
                                       leftSelect3 = leftSelect1;
1768 
                                 end
1769 
                              else
1770 
                                 begin
1771 
                                    if(zHU==5)
1772 
                                       leftSelect1 = 2;
1773 
                                    else
1774 
                                       leftSelect1 = 3;
1775 
                                    leftSelect2 = 3;
1776 
                                    leftSelect3 = 3;
1777 
                                 end
1778 
                              tempVal1 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect1));
1779 
                              tempVal2 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect2));
1780 
                              tempVal3 = zeroExtend(intra4x4SelectLeft(leftValSet,leftSelect3));
1781 
                              Bit#(10) predVal = tempVal1 + (tempVal2<<1) + tempVal3 + 2;
1782 
                              predVector[pixelHor] = predVal[9:2];
1783 
                           end
1784 
                     end
1785 
                     default: $display( "ERROR Prediction: intraProcessStep intra4x4 unknown cur_intra4x4_pred_mode");
1786 
                  endcase
1787 
               end
1788 
            else
1789 
               $display( "ERROR Prediction: intraProcessStep intra4x4 unknown intraStepCount");
1790 
         end
1791 
      else if(intrastate==Intra16x16  && intraChromaFlag==0)
1792 
         begin
1793 
            //$display( "TRACE Prediction: intraProcessStep intra16x16 %0d %0d %0d %h", intra16x16_pred_mode, currMb, blockNum, select(intraTopVal,blockHor));/////////////////
1794 
            case(intra16x16_pred_mode)
1795 
               0://vertical
1796 
               begin
1797 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1798 
                     begin
1799 
                        Bit#(32) topValSet = select(intraTopVal,blockHor);
1800 
                        Bit#(8) topVal = select32to8(topValSet,fromInteger(pixelHor));
1801 
                        predVector[pixelHor] = topVal;
1802 
                     end
1803 
                  outFlag = 1;
1804 
               end
1805 
               1://horizontal
1806 
               begin
1807 
                  Bit#(40) leftValSet = select(intraLeftVal,blockVer);
1808 
                  Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,zeroExtend(pixelVer));
1809 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1810 
                     predVector[pixelHor] = leftVal;
1811 
                  outFlag = 1;
1812 
               end
1813 
               2://dc
1814 
               begin
1815 
                  case(intraStepCount)
1816 
                     2:
1817 
                     begin
1818 
                        if(topAvailable == 1)
1819 
                           begin
1820 
                              Bit#(32) topValSet = select(intraTopVal,0);
1821 
                              intraSumA <= zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1822 
                           end
1823 
                        else
1824 
                           begin
1825 
                              intraSumA <= 0;
1826 
                              nextIntraStepCount = 6;
1827 
                           end
1828 
                     end
1829 
                     3:
1830 
                     begin
1831 
                        Bit#(32) topValSet = select(intraTopVal,1);
1832 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1833 
                     end
1834 
                     4:
1835 
                     begin
1836 
                        Bit#(32) topValSet = select(intraTopVal,2);
1837 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24]);
1838 
                     end
1839 
                     5:
1840 
                     begin
1841 
                        Bit#(32) topValSet = select(intraTopVal,3);
1842 
                        intraSumA <= intraSumA+zeroExtend(topValSet[7:0])+zeroExtend(topValSet[15:8])+zeroExtend(topValSet[23:16])+zeroExtend(topValSet[31:24])+8;
1843 
                     end
1844 
                     6:
1845 
                     begin
1846 
                        if(leftAvailable == 1)
1847 
                           begin
1848 
                              Bit#(40) leftValSet = select(intraLeftVal,0);
1849 
                              intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1850 
                           end
1851 
                        else
1852 
                           nextIntraStepCount = 10;
1853 
                     end
1854 
                     7:
1855 
                     begin
1856 
                        Bit#(40) leftValSet = select(intraLeftVal,1);
1857 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1858 
                     end
1859 
                     8:
1860 
                     begin
1861 
                        Bit#(40) leftValSet = select(intraLeftVal,2);
1862 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32]);
1863 
                     end
1864 
                     9:
1865 
                     begin
1866 
                        Bit#(40) leftValSet = select(intraLeftVal,3);
1867 
                        intraSumA <= intraSumA+zeroExtend(leftValSet[15:8])+zeroExtend(leftValSet[23:16])+zeroExtend(leftValSet[31:24])+zeroExtend(leftValSet[39:32])+8;
1868 
                     end
1869 
                     10:
1870 
                     begin
1871 
                        if(leftAvailable == 1 && topAvailable == 1)
1872 
                           intraSumA <= intraSumA >> 5;
1873 
                        else if(leftAvailable == 1 || topAvailable == 1)
1874 
                           intraSumA <= intraSumA >> 4;
1875 
                        else
1876 
                           intraSumA <= 128;
1877 
                     end
1878 
                     11:
1879 
                     begin
1880 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1881 
                           predVector[pixelHor] = intraSumA[7:0];
1882 
                        outFlag = 1;
1883 
                     end
1884 
                     default: $display( "ERROR Prediction: intraProcessStep intra16x16 DC unknown intraStepCount");
1885 
                  endcase
1886 
               end
1887 
               3://plane
1888 
               begin
1889 
                  if(intraStepCount == 2)
1890 
                     begin
1891 
                        Bit#(32) topValSet = select(intraTopVal,3);
1892 
                        Bit#(8) topVal = select32to8(topValSet,3);
1893 
                        Bit#(40) leftValSet = select(intraLeftVal,3);
1894 
                        Bit#(8) leftVal = intra4x4SelectLeft(leftValSet,3);
1895 
                        Bit#(13) tempVal = zeroExtend(topVal) + zeroExtend(leftVal);
1896 
                        intraSumA <= tempVal << 4;
1897 
                        intraSumB <= 0;
1898 
                        intraSumC <= 0;
1899 
                     end
1900 
                  else if(intraStepCount < 11)
1901 
                     begin
1902 
                        Bit#(4) xyPlusOne = intraStepCount-2;
1903 
                        Bit#(4) xyPlusEight = intraStepCount+5;
1904 
                        Bit#(4) sixMinusXY = 9-intraStepCount;
1905 
                        Bit#(32) topValSet1 = select(intraTopVal,xyPlusEight[3:2]);
1906 
                        Bit#(8) topVal1 = select32to8(topValSet1,xyPlusEight[1:0]);
1907 
                        Bit#(40) leftValSet1 = select(intraLeftVal,xyPlusEight[3:2]);
1908 
                        Bit#(8) leftVal1 = intra4x4SelectLeft(leftValSet1,zeroExtend(xyPlusEight[1:0]));
1909 
                        Bit#(32) topValSet2=0;
1910 
                        Bit#(8) topVal2;
1911 
                        Bit#(40) leftValSet2;
1912 
                        Bit#(8) leftVal2;
1913 
                        if(intraStepCount==10)
1914 
                           begin
1915 
                              leftValSet2 = select(intraLeftVal,0);
1916 
                              leftVal2 = intra4x4SelectLeft(leftValSet2,-1);
1917 
                              topVal2 = leftVal2;
1918 
                           end
1919 
                        else
1920 
                           begin
1921 
                              topValSet2 = select(intraTopVal,sixMinusXY[3:2]);
1922 
                              topVal2 = select32to8(topValSet2,sixMinusXY[1:0]);
1923 
                              leftValSet2 = select(intraLeftVal,sixMinusXY[3:2]);
1924 
                              leftVal2 = intra4x4SelectLeft(leftValSet2,zeroExtend(sixMinusXY[1:0]));
1925 
                           end
1926 
                        Bit#(15) diffH = zeroExtend(topVal1) - zeroExtend(topVal2);
1927 
                        Bit#(15) diffV = zeroExtend(leftVal1) - zeroExtend(leftVal2);
1928 
                        intraSumB <= intraSumB + (zeroExtend(xyPlusOne) * diffH);
1929 
                        intraSumC <= intraSumC + (zeroExtend(xyPlusOne) * diffV);
1930 
                     end
1931 
                  else if(intraStepCount == 11)
1932 
                     begin
1933 
                        Bit#(18) tempSumB = (5*signExtend(intraSumB)) + 32;
1934 
                        Bit#(18) tempSumC = (5*signExtend(intraSumC)) + 32;
1935 
                        intraSumB <= signExtend(tempSumB[17:6]);
1936 
                        intraSumC <= signExtend(tempSumC[17:6]);
1937 
                     end
1938 
                  else if(intraStepCount == 12)
1939 
                     begin
1940 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
1941 
                           begin
1942 
                              Bit#(5)  positionHor = {1'b0,blockHor,fromInteger(pixelHor)};
1943 
                              Bit#(5)  positionVer = {1'b0,blockVer,pixelVer};
1944 
                              Bit#(16) tempProductB = signExtend(intraSumB) * signExtend(positionHor-7);
1945 
                              Bit#(16) tempProductC = signExtend(intraSumC) * signExtend(positionVer-7);
1946 
                              Bit#(16) tempTotal = tempProductB + tempProductC + zeroExtend(intraSumA) + 16;
1947 
                              if(tempTotal[15]==1)
1948 
                                 predVector[pixelHor] = 0;
1949 
                              else if(tempTotal[14:5] > 255)
1950 
                                 predVector[pixelHor] = 255;
1951 
                              else
1952 
                                 predVector[pixelHor] = tempTotal[12:5];
1953 
                           end
1954 
                        outFlag = 1;
1955 
                     end
1956 
                  else
1957 
                     $display( "ERROR Prediction: intraProcessStep intra16x16 plane unknown intraStepCount");
1958 
               end
1959 
            endcase
1960 
         end
1961 
      else if(intraChromaFlag==1)
1962 
         begin
1963 
            //$display( "TRACE Prediction: intraProcessStep intraChroma %0d %0d %0d %0d %0d %0d %h %h %h %h %h %h %h %h",intra_chroma_pred_mode.first(),intraChromaTopAvailable,intraChromaLeftAvailable,currMb,blockNum,pixelNum,pack(intraLeftValChroma0),pack(intraTopValChroma0),pack(intraLeftValChroma1),pack(intraTopValChroma1),intraLeftValChroma0[0],intraTopValChroma0[3][15:8],intraLeftValChroma1[0],intraTopValChroma1[3][15:8]);///////////////////
1964 
            Vector#(9,Bit#(8)) tempLeftVec;
1965 
            Vector#(4,Bit#(16)) tempTopVec;
1966 
            if(blockNum[2] == 0)
1967 
               begin
1968 
                  tempLeftVec = intraLeftValChroma0;
1969 
                  tempTopVec = intraTopValChroma0;
1970 
               end
1971 
            else
1972 
               begin
1973 
                  tempLeftVec = intraLeftValChroma1;
1974 
                  tempTopVec = intraTopValChroma1;
1975 
               end
1976 
            case(intra_chroma_pred_mode.first())
1977 
               0://dc
1978 
               begin
1979 
                  if(intraStepCount == 2)
1980 
                     begin
1981 
                        Bit#(1) useTop=0;
1982 
                        Bit#(1) useLeft=0;
1983 
                        if(blockNum[1:0] == 0 || blockNum[1:0] == 3)
1984 
                           begin
1985 
                              useTop = intraChromaTopAvailable;
1986 
                              useLeft = intraChromaLeftAvailable;
1987 
                           end
1988 
                        else if(blockNum[1:0] == 1)
1989 
                           begin
1990 
                              if(intraChromaTopAvailable == 1)
1991 
                                 useTop = 1;
1992 
                              else if(intraChromaLeftAvailable == 1)
1993 
                                 useLeft = 1;
1994 
                           end
1995 
                              else if(blockNum[1:0] == 2)
1996 
                                 begin
1997 
                                    if(intraChromaLeftAvailable == 1)
1998 
                                       useLeft = 1;
1999 
                                    else if(intraChromaTopAvailable == 1)
2000 
                                       useTop = 1;
2001 
                                 end
2002 
                        else
2003 
                           $display( "ERROR Prediction: intraProcessStep intraChroma dc unknown blockNum");
2004 
                        Bit#(10) topSum;
2005 
                        Bit#(10) leftSum;
2006 
                        Bit#(11) totalSum;
2007 
                        if(blockHor[0] == 0)
2008 
                           topSum = zeroExtend(tempTopVec[0][15:8])+zeroExtend(tempTopVec[0][7:0])+zeroExtend(tempTopVec[1][15:8])+zeroExtend(tempTopVec[1][7:0])+2;
2009 
                        else
2010 
                           topSum = zeroExtend(tempTopVec[2][15:8])+zeroExtend(tempTopVec[2][7:0])+zeroExtend(tempTopVec[3][15:8])+zeroExtend(tempTopVec[3][7:0])+2;
2011 
                        if(blockVer[0] == 0)
2012 
                           leftSum = zeroExtend(tempLeftVec[1])+zeroExtend(tempLeftVec[2])+zeroExtend(tempLeftVec[3])+zeroExtend(tempLeftVec[4])+2;
2013 
                        else
2014 
                           leftSum = zeroExtend(tempLeftVec[5])+zeroExtend(tempLeftVec[6])+zeroExtend(tempLeftVec[7])+zeroExtend(tempLeftVec[8])+2;
2015 
                        totalSum = zeroExtend(topSum) + zeroExtend(leftSum);
2016 
                        if(useTop==1 && useLeft==1)
2017 
                           intraSumA <= zeroExtend(totalSum[10:3]);
2018 
                        else if(useTop==1)
2019 
                           intraSumA <= zeroExtend(topSum[9:2]);
2020 
                        else if(useLeft==1)
2021 
                           intraSumA <= zeroExtend(leftSum[9:2]);
2022 
                        else
2023 
                           intraSumA <= zeroExtend(8'b10000000);
2024 
                     end
2025 
                  else if(intraStepCount == 3)
2026 
                     begin
2027 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2028 
                           predVector[pixelHor] = intraSumA[7:0];
2029 
                        outFlag = 1;
2030 
                     end
2031 
                  else
2032 
                     $display( "ERROR Prediction: intraProcessStep intraChroma dc unknown intraStepCount");
2033 
               end
2034 
               1://horizontal
2035 
               begin
2036 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2037 
                     begin
2038 
                        Bit#(4) tempLeftIdx = {1'b0,blockVer[0],pixelVer} + 1;
2039 
                        predVector[pixelHor] = select(tempLeftVec,tempLeftIdx);
2040 
                     end
2041 
                  outFlag = 1;
2042 
               end
2043 
               2://vertical
2044 
               begin
2045 
                  for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2046 
                     begin
2047 
                        Bit#(2) pixelHorTemp = fromInteger(pixelHor);
2048 
                        Bit#(16) tempTopVal = select(tempTopVec,{blockHor[0],pixelHorTemp[1]});
2049 
                        if(pixelHorTemp[0] == 0)
2050 
                           predVector[pixelHor] = tempTopVal[7:0];
2051 
                        else
2052 
                           predVector[pixelHor] = tempTopVal[15:8];
2053 
                     end
2054 
                  outFlag = 1;
2055 
               end
2056 
               3://plane
2057 
               begin
2058 
                  if(intraStepCount == 2)
2059 
                     begin
2060 
                        Bit#(16) topValSet = tempTopVec[3];
2061 
                        Bit#(8) topVal = topValSet[15:8];
2062 
                        Bit#(8) leftVal = tempLeftVec[8];
2063 
                        Bit#(13) tempVal = zeroExtend(topVal) + zeroExtend(leftVal);
2064 
                        intraSumA <= tempVal << 4;
2065 
                        intraSumB <= 0;
2066 
                        intraSumC <= 0;
2067 
                     end
2068 
                  else if(intraStepCount < 7)
2069 
                     begin
2070 
                        Bit#(3) xyPlusOne = truncate(intraStepCount)-2;
2071 
                        Bit#(3) xyPlusFour = truncate(intraStepCount)+1;
2072 
                        Bit#(4) twoMinusXY = 5-intraStepCount;
2073 
                        Bit#(16) topValSet1 = select(tempTopVec,xyPlusFour[2:1]);
2074 
                        Bit#(8) topVal1 = select16to8(topValSet1,xyPlusFour[0]);
2075 
                        Bit#(4) tempLeftIdx1 = {1'b0,xyPlusFour} + 1;
2076 
                        Bit#(8) leftVal1 = select(tempLeftVec,tempLeftIdx1);
2077 
 
2078 
                        Bit#(16) topValSet2 = select(tempTopVec,twoMinusXY[2:1]);
2079 
                        Bit#(8) topVal2;
2080 
                        Bit#(8) leftVal2 = select(tempLeftVec,twoMinusXY+1);
2081 
                        if(intraStepCount==6)
2082 
                           topVal2 = leftVal2;
2083 
                        else
2084 
                           topVal2 = select16to8(topValSet2,twoMinusXY[0]);
2085 
                        Bit#(15) diffH = zeroExtend(topVal1) - zeroExtend(topVal2);
2086 
                        Bit#(15) diffV = zeroExtend(leftVal1) - zeroExtend(leftVal2);
2087 
                        intraSumB <= intraSumB + (zeroExtend(xyPlusOne) * diffH);
2088 
                        intraSumC <= intraSumC + (zeroExtend(xyPlusOne) * diffV);
2089 
                        Int#(15) tempDisplayH = unpack(zeroExtend(xyPlusOne) * diffH);
2090 
                        Int#(15) tempDisplayV = unpack(zeroExtend(xyPlusOne) * diffV);
2091 
                        //$display( "TRACE Prediction: intraProcessStep intraChroma plane partH partV %0d %0d",tempDisplayH,tempDisplayV);////////////////////
2092 
                     end
2093 
                  else if(intraStepCount == 7)
2094 
                     begin
2095 
                        Int#(15) tempDisplayH = unpack(intraSumB);
2096 
                        Int#(15) tempDisplayV = unpack(intraSumC);
2097 
                        //$display( "TRACE Prediction: intraProcessStep intraChroma plane H V %0d %0d",tempDisplayH,tempDisplayV);////////////////////
2098 
                        Bit#(19) tempSumB = (34*signExtend(intraSumB)) + 32;
2099 
                        Bit#(19) tempSumC = (34*signExtend(intraSumC)) + 32;
2100 
                        intraSumB <= signExtend(tempSumB[18:6]);
2101 
                        intraSumC <= signExtend(tempSumC[18:6]);
2102 
                     end
2103 
                  else if(intraStepCount == 8)
2104 
                     begin
2105 
                        for(Integer pixelHor=0; pixelHor<4; pixelHor=pixelHor+1)
2106 
                           begin
2107 
                              Bit#(4)  positionHor = {1'b0,blockHor[0],fromInteger(pixelHor)};
2108 
                              Bit#(4)  positionVer = {1'b0,blockVer[0],pixelVer};
2109 
                              Bit#(17) tempProductB = signExtend(intraSumB) * signExtend(positionHor-3);
2110 
                              Bit#(17) tempProductC = signExtend(intraSumC) * signExtend(positionVer-3);
2111 
                              Bit#(17) tempTotal = tempProductB + tempProductC + zeroExtend(intraSumA) + 16;
2112 
                              if(tempTotal[16]==1)
2113 
                                 predVector[pixelHor] = 0;
2114 
                              else if(tempTotal[15:5] > 255)
2115 
                                 predVector[pixelHor] = 255;
2116 
                              else
2117 
                                 predVector[pixelHor] = tempTotal[12:5];
2118 
                           end
2119 
                        outFlag = 1;
2120 
                     end
2121 
                  else
2122 
                     $display( "ERROR Prediction: intraProcessStep intraChroma plane unknown intraStepCount");
2123 
               end
2124 
            endcase
2125 
         end
2126 
      else
2127 
         $display( "ERROR Prediction: intraProcessStep unknown intrastate");
2128 
 
2129 
      if(outFlag==1)
2130 
         begin
2131 
            predictedfifo.enq(predVector);
2132 
            pixelNum <= pixelNum+4;
2133 
            if(pixelNum == 12)
2134 
               begin
2135 
                  if(intraChromaFlag==0)
2136 
                     begin
2137 
                        blockNum <= blockNum+1;
2138 
                        if(blockNum == 15)
2139 
                           begin
2140 
                              intraChromaFlag <= 1;
2141 
                              intraStepCount <= 2;
2142 
                           end
2143 
                        else if(intrastate==Intra4x4)
2144 
                           intraStepCount <= 1;
2145 
                     end
2146 
                  else
2147 
                     begin
2148 
                        if(blockNum == 7)
2149 
                           begin
2150 
                              blockNum <= 0;
2151 
                              intraChromaFlag <= 0;
2152 
                              intraStepCount <= 0;
2153 
                              intra_chroma_pred_mode.deq();
2154 
                           end
2155 
                        else
2156 
                           begin
2157 
                              blockNum <= blockNum+1;
2158 
                              if(intra_chroma_pred_mode.first()==0)
2159 
                                 intraStepCount <= 2;
2160 
                              else if(blockNum==3)
2161 
                                 intraStepCount <= 2;
2162 
                           end
2163 
                     end
2164 
               end
2165 
         end
2166 
      else
2167 
         intraStepCount <= nextIntraStepCount;
2168 
      //$display( "Trace Prediction: intraProcessStep");
2169 
   endrule
2170 
 
2171 
 
2172 
 
2173 
   interface Client mem_client_intra;
2174 
      interface Get request  = fifoToGet(intraMemReqQ);
2175 
      interface Put response = fifoToPut(intraMemRespQ);
2176 
   endinterface
2177 
   interface Client mem_client_inter;
2178 
      interface Get request  = fifoToGet(interMemReqQ);
2179 
      interface Put response = fifoToPut(interMemRespQ);
2180 
   endinterface
2181 
   interface Client mem_client_buffer = interpolator.mem_client;
2182 
 
2183 
   interface Put ioin  = fifoToPut(infifo);
2184 
   interface Put ioin_InverseTrans  = fifoToPut(infifo_ITB);
2185 
   interface Get ioout = fifoToGet(outfifo);
2186 
 
2187 
 
2188 
endmodule
2189 
 
2190 
endpackage

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