Lines Matching refs:p
16 #define U2I(nu) (p->Units2Indx[(nu) - 1])
17 #define I2U(indx) (p->Indx2Units[indx])
22 #define REF(ptr) ((UInt32)((Byte *)(ptr) - (p)->Base))
27 #define CTX(ref) ((CPpmd7_Context *)Ppmd7_GetContext(p, ref))
28 #define STATS(ctx) Ppmd7_GetStats(p, ctx)
55 #define NODE(offs) ((CPpmd7_Node *)(p->Base + (offs)))
58 void Ppmd7_Construct(CPpmd7 *p) in Ppmd7_Construct() argument
62 p->Base = 0; in Ppmd7_Construct()
67 do { p->Units2Indx[k++] = (Byte)i; } while(--step); in Ppmd7_Construct()
68 p->Indx2Units[i] = (Byte)k; in Ppmd7_Construct()
71 p->NS2BSIndx[0] = (0 << 1); in Ppmd7_Construct()
72 p->NS2BSIndx[1] = (1 << 1); in Ppmd7_Construct()
73 memset(p->NS2BSIndx + 2, (2 << 1), 9); in Ppmd7_Construct()
74 memset(p->NS2BSIndx + 11, (3 << 1), 256 - 11); in Ppmd7_Construct()
77 p->NS2Indx[i] = (Byte)i; in Ppmd7_Construct()
80 p->NS2Indx[i] = (Byte)m; in Ppmd7_Construct()
85 memset(p->HB2Flag, 0, 0x40); in Ppmd7_Construct()
86 memset(p->HB2Flag + 0x40, 8, 0x100 - 0x40); in Ppmd7_Construct()
89 void Ppmd7_Free(CPpmd7 *p, ISzAlloc *alloc) in Ppmd7_Free() argument
91 alloc->Free(alloc, p->Base); in Ppmd7_Free()
92 p->Size = 0; in Ppmd7_Free()
93 p->Base = 0; in Ppmd7_Free()
96 Bool Ppmd7_Alloc(CPpmd7 *p, UInt32 size, ISzAlloc *alloc) in Ppmd7_Alloc() argument
98 if (p->Base == 0 || p->Size != size) in Ppmd7_Alloc()
100 Ppmd7_Free(p, alloc); in Ppmd7_Alloc()
101 p->AlignOffset = in Ppmd7_Alloc()
107 if ((p->Base = (Byte *)alloc->Alloc(alloc, p->AlignOffset + size in Ppmd7_Alloc()
113 p->Size = size; in Ppmd7_Alloc()
118 static void InsertNode(CPpmd7 *p, void *node, unsigned indx) in InsertNode() argument
120 *((CPpmd_Void_Ref *)node) = p->FreeList[indx]; in InsertNode()
121 p->FreeList[indx] = REF(node); in InsertNode()
124 static void *RemoveNode(CPpmd7 *p, unsigned indx) in RemoveNode() argument
126 CPpmd_Void_Ref *node = (CPpmd_Void_Ref *)Ppmd7_GetPtr(p, p->FreeList[indx]); in RemoveNode()
127 p->FreeList[indx] = *node; in RemoveNode()
131 static void SplitBlock(CPpmd7 *p, void *ptr, unsigned oldIndx, unsigned newIndx) in SplitBlock() argument
138 InsertNode(p, ((Byte *)ptr) + U2B(k), nu - k - 1); in SplitBlock()
140 InsertNode(p, ptr, i); in SplitBlock()
143 static void GlueFreeBlocks(CPpmd7 *p) in GlueFreeBlocks() argument
149 CPpmd7_Node_Ref head = p->AlignOffset + p->Size; in GlueFreeBlocks()
155 p->GlueCount = 255; in GlueFreeBlocks()
161 CPpmd7_Node_Ref next = (CPpmd7_Node_Ref)p->FreeList[i]; in GlueFreeBlocks()
162 p->FreeList[i] = 0; in GlueFreeBlocks()
176 if (p->LoUnit != p->HiUnit) in GlueFreeBlocks()
177 ((CPpmd7_Node *)p->LoUnit)->Stamp = 1; in GlueFreeBlocks()
204 InsertNode(p, node, PPMD_NUM_INDEXES - 1); in GlueFreeBlocks()
208 InsertNode(p, node + k, nu - k - 1); in GlueFreeBlocks()
210 InsertNode(p, node, i); in GlueFreeBlocks()
215 static void *AllocUnitsRare(CPpmd7 *p, unsigned indx) in AllocUnitsRare() argument
219 if (p->GlueCount == 0) in AllocUnitsRare()
221 GlueFreeBlocks(p); in AllocUnitsRare()
222 if (p->FreeList[indx] != 0) in AllocUnitsRare()
223 return RemoveNode(p, indx); in AllocUnitsRare()
231 p->GlueCount--; in AllocUnitsRare()
232 return ((UInt32)(p->UnitsStart - p->Text) > numBytes) ? (p->UnitsStart -= numBytes) : (NULL); in AllocUnitsRare()
235 while (p->FreeList[i] == 0); in AllocUnitsRare()
236 retVal = RemoveNode(p, i); in AllocUnitsRare()
237 SplitBlock(p, retVal, i, indx); in AllocUnitsRare()
241 static void *AllocUnits(CPpmd7 *p, unsigned indx) in AllocUnits() argument
244 if (p->FreeList[indx] != 0) in AllocUnits()
245 return RemoveNode(p, indx); in AllocUnits()
247 if (numBytes <= (UInt32)(p->HiUnit - p->LoUnit)) in AllocUnits()
249 void *retVal = p->LoUnit; in AllocUnits()
250 p->LoUnit += numBytes; in AllocUnits()
253 return AllocUnitsRare(p, indx); in AllocUnits()
260 static void *ShrinkUnits(CPpmd7 *p, void *oldPtr, unsigned oldNU, unsigned newNU) in ShrinkUnits() argument
266 if (p->FreeList[i1] != 0) in ShrinkUnits()
268 void *ptr = RemoveNode(p, i1); in ShrinkUnits()
270 InsertNode(p, oldPtr, i0); in ShrinkUnits()
273 SplitBlock(p, oldPtr, i0, i1); in ShrinkUnits()
277 #define SUCCESSOR(p) ((CPpmd_Void_Ref)((p)->SuccessorLow | ((UInt32)(p)->SuccessorHigh << 16))) argument
279 static void SetSuccessor(CPpmd_State *p, CPpmd_Void_Ref v) in SetSuccessor() argument
281 (p)->SuccessorLow = (UInt16)((UInt32)(v) & 0xFFFF); in SetSuccessor()
282 (p)->SuccessorHigh = (UInt16)(((UInt32)(v) >> 16) & 0xFFFF); in SetSuccessor()
285 static void RestartModel(CPpmd7 *p) in RestartModel() argument
289 memset(p->FreeList, 0, sizeof(p->FreeList)); in RestartModel()
290 p->Text = p->Base + p->AlignOffset; in RestartModel()
291 p->HiUnit = p->Text + p->Size; in RestartModel()
292 p->LoUnit = p->UnitsStart = p->HiUnit - p->Size / 8 / UNIT_SIZE * 7 * UNIT_SIZE; in RestartModel()
293 p->GlueCount = 0; in RestartModel()
295 p->OrderFall = p->MaxOrder; in RestartModel()
296 p->RunLength = p->InitRL = -(Int32)((p->MaxOrder < 12) ? p->MaxOrder : 12) - 1; in RestartModel()
297 p->PrevSuccess = 0; in RestartModel()
299 p->MinContext = p->MaxContext = (CTX_PTR)(p->HiUnit -= UNIT_SIZE); /* AllocContext(p); */ in RestartModel()
300 p->MinContext->Suffix = 0; in RestartModel()
301 p->MinContext->NumStats = 256; in RestartModel()
302 p->MinContext->SummFreq = 256 + 1; in RestartModel()
303 p->FoundState = (CPpmd_State *)p->LoUnit; /* AllocUnits(p, PPMD_NUM_INDEXES - 1); */ in RestartModel()
304 p->LoUnit += U2B(256 / 2); in RestartModel()
305 p->MinContext->Stats = REF(p->FoundState); in RestartModel()
308 CPpmd_State *s = &p->FoundState[i]; in RestartModel()
317 UInt16 *dest = p->BinSumm[i] + k; in RestartModel()
326 CPpmd_See *s = &p->See[i][k]; in RestartModel()
332 void Ppmd7_Init(CPpmd7 *p, unsigned maxOrder) in Ppmd7_Init() argument
334 p->MaxOrder = maxOrder; in Ppmd7_Init()
335 RestartModel(p); in Ppmd7_Init()
336 p->DummySee.Shift = PPMD_PERIOD_BITS; in Ppmd7_Init()
337 p->DummySee.Summ = 0; /* unused */ in Ppmd7_Init()
338 p->DummySee.Count = 64; /* unused */ in Ppmd7_Init()
341 static CTX_PTR CreateSuccessors(CPpmd7 *p, Bool skip) in CreateSuccessors() argument
344 CTX_PTR c = p->MinContext; in CreateSuccessors()
345 CPpmd_Byte_Ref upBranch = (CPpmd_Byte_Ref)SUCCESSOR(p->FoundState); in CreateSuccessors()
350 ps[numPs++] = p->FoundState; in CreateSuccessors()
359 for (s = STATS(c); s->Symbol != p->FoundState->Symbol; s++); in CreateSuccessors()
374 upState.Symbol = *(const Byte *)Ppmd7_GetPtr(p, upBranch); in CreateSuccessors()
393 if (p->HiUnit != p->LoUnit) in CreateSuccessors()
394 c1 = (CTX_PTR)(p->HiUnit -= UNIT_SIZE); in CreateSuccessors()
395 else if (p->FreeList[0] != 0) in CreateSuccessors()
396 c1 = (CTX_PTR)RemoveNode(p, 0); in CreateSuccessors()
399 c1 = (CTX_PTR)AllocUnitsRare(p, 0); in CreateSuccessors()
421 static void UpdateModel(CPpmd7 *p) in UpdateModel() argument
423 CPpmd_Void_Ref successor, fSuccessor = SUCCESSOR(p->FoundState); in UpdateModel()
427 if (p->FoundState->Freq < MAX_FREQ / 4 && p->MinContext->Suffix != 0) in UpdateModel()
429 c = SUFFIX(p->MinContext); in UpdateModel()
440 if (s->Symbol != p->FoundState->Symbol) in UpdateModel()
442 do { s++; } while (s->Symbol != p->FoundState->Symbol); in UpdateModel()
457 if (p->OrderFall == 0) in UpdateModel()
459 p->MinContext = p->MaxContext = CreateSuccessors(p, True); in UpdateModel()
460 if (p->MinContext == 0) in UpdateModel()
462 RestartModel(p); in UpdateModel()
465 SetSuccessor(p->FoundState, REF(p->MinContext)); in UpdateModel()
469 *p->Text++ = p->FoundState->Symbol; in UpdateModel()
470 successor = REF(p->Text); in UpdateModel()
471 if (p->Text >= p->UnitsStart) in UpdateModel()
473 RestartModel(p); in UpdateModel()
481 CTX_PTR cs = CreateSuccessors(p, False); in UpdateModel()
484 RestartModel(p); in UpdateModel()
489 if (--p->OrderFall == 0) in UpdateModel()
492 p->Text -= (p->MaxContext != p->MinContext); in UpdateModel()
497 SetSuccessor(p->FoundState, successor); in UpdateModel()
498 fSuccessor = REF(p->MinContext); in UpdateModel()
501 s0 = p->MinContext->SummFreq - (ns = p->MinContext->NumStats) - (p->FoundState->Freq - 1); in UpdateModel()
503 for (c = p->MaxContext; c != p->MinContext; c = SUFFIX(c)) in UpdateModel()
516 void *ptr = AllocUnits(p, i + 1); in UpdateModel()
520 RestartModel(p); in UpdateModel()
525 InsertNode(p, oldPtr, i); in UpdateModel()
533 CPpmd_State *s = (CPpmd_State*)AllocUnits(p, 0); in UpdateModel()
536 RestartModel(p); in UpdateModel()
545 c->SummFreq = (UInt16)(s->Freq + p->InitEsc + (ns > 3)); in UpdateModel()
547 cf = 2 * (UInt32)p->FoundState->Freq * (c->SummFreq + 6); in UpdateModel()
562 s->Symbol = p->FoundState->Symbol; in UpdateModel()
567 p->MaxContext = p->MinContext = CTX(fSuccessor); in UpdateModel()
570 static void Rescale(CPpmd7 *p) in Rescale() argument
573 CPpmd_State *stats = STATS(p->MinContext); in Rescale()
574 CPpmd_State *s = p->FoundState; in Rescale()
581 escFreq = p->MinContext->SummFreq - s->Freq; in Rescale()
583 adder = (p->OrderFall != 0); in Rescale()
587 i = p->MinContext->NumStats - 1; in Rescale()
607 unsigned numStats = p->MinContext->NumStats; in Rescale()
611 p->MinContext->NumStats = (UInt16)(p->MinContext->NumStats - i); in Rescale()
612 if (p->MinContext->NumStats == 1) in Rescale()
621 InsertNode(p, stats, U2I(((numStats + 1) >> 1))); in Rescale()
622 *(p->FoundState = ONE_STATE(p->MinContext)) = tmp; in Rescale()
626 n1 = (p->MinContext->NumStats + 1) >> 1; in Rescale()
628 p->MinContext->Stats = STATS_REF(ShrinkUnits(p, stats, n0, n1)); in Rescale()
630 p->MinContext->SummFreq = (UInt16)(sumFreq + escFreq - (escFreq >> 1)); in Rescale()
631 p->FoundState = STATS(p->MinContext); in Rescale()
634 CPpmd_See *Ppmd7_MakeEscFreq(CPpmd7 *p, unsigned numMasked, UInt32 *escFreq) in Ppmd7_MakeEscFreq() argument
637 unsigned nonMasked = p->MinContext->NumStats - numMasked; in Ppmd7_MakeEscFreq()
638 if (p->MinContext->NumStats != 256) in Ppmd7_MakeEscFreq()
640 see = p->See[p->NS2Indx[nonMasked - 1]] + in Ppmd7_MakeEscFreq()
641 (nonMasked < (unsigned)SUFFIX(p->MinContext)->NumStats - p->MinContext->NumStats) + in Ppmd7_MakeEscFreq()
642 2 * (p->MinContext->SummFreq < 11 * p->MinContext->NumStats) + in Ppmd7_MakeEscFreq()
644 p->HiBitsFlag; in Ppmd7_MakeEscFreq()
653 see = &p->DummySee; in Ppmd7_MakeEscFreq()
659 static void NextContext(CPpmd7 *p) in NextContext() argument
661 CTX_PTR c = CTX(SUCCESSOR(p->FoundState)); in NextContext()
662 if (p->OrderFall == 0 && (Byte *)c > p->Text) in NextContext()
663 p->MinContext = p->MaxContext = c; in NextContext()
665 UpdateModel(p); in NextContext()
668 void Ppmd7_Update1(CPpmd7 *p) in Ppmd7_Update1() argument
670 CPpmd_State *s = p->FoundState; in Ppmd7_Update1()
672 p->MinContext->SummFreq += 4; in Ppmd7_Update1()
676 p->FoundState = --s; in Ppmd7_Update1()
678 Rescale(p); in Ppmd7_Update1()
680 NextContext(p); in Ppmd7_Update1()
683 void Ppmd7_Update1_0(CPpmd7 *p) in Ppmd7_Update1_0() argument
685 p->PrevSuccess = (2 * p->FoundState->Freq > p->MinContext->SummFreq); in Ppmd7_Update1_0()
686 p->RunLength += p->PrevSuccess; in Ppmd7_Update1_0()
687 p->MinContext->SummFreq += 4; in Ppmd7_Update1_0()
688 if ((p->FoundState->Freq += 4) > MAX_FREQ) in Ppmd7_Update1_0()
689 Rescale(p); in Ppmd7_Update1_0()
690 NextContext(p); in Ppmd7_Update1_0()
693 void Ppmd7_UpdateBin(CPpmd7 *p) in Ppmd7_UpdateBin() argument
695 p->FoundState->Freq = (Byte)(p->FoundState->Freq + (p->FoundState->Freq < 128 ? 1: 0)); in Ppmd7_UpdateBin()
696 p->PrevSuccess = 1; in Ppmd7_UpdateBin()
697 p->RunLength++; in Ppmd7_UpdateBin()
698 NextContext(p); in Ppmd7_UpdateBin()
701 void Ppmd7_Update2(CPpmd7 *p) in Ppmd7_Update2() argument
703 p->MinContext->SummFreq += 4; in Ppmd7_Update2()
704 if ((p->FoundState->Freq += 4) > MAX_FREQ) in Ppmd7_Update2()
705 Rescale(p); in Ppmd7_Update2()
706 p->RunLength = p->InitRL; in Ppmd7_Update2()
707 UpdateModel(p); in Ppmd7_Update2()