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Unified Diff: core/src/fxcodec/jbig2/JBig2_GrdProc.cpp

Issue 1800523005: Move core/src/ up to core/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
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Index: core/src/fxcodec/jbig2/JBig2_GrdProc.cpp
diff --git a/core/src/fxcodec/jbig2/JBig2_GrdProc.cpp b/core/src/fxcodec/jbig2/JBig2_GrdProc.cpp
deleted file mode 100644
index cf0f60405c5bc0f9a07d39e98c7e117773c0e518..0000000000000000000000000000000000000000
--- a/core/src/fxcodec/jbig2/JBig2_GrdProc.cpp
+++ /dev/null
@@ -1,1259 +0,0 @@
-// Copyright 2015 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/src/fxcodec/jbig2/JBig2_GrdProc.h"
-
-#include <memory>
-
-#include "core/include/fxcodec/fx_codec.h"
-#include "core/src/fxcodec/jbig2/JBig2_ArithDecoder.h"
-#include "core/src/fxcodec/jbig2/JBig2_BitStream.h"
-#include "core/src/fxcodec/jbig2/JBig2_Image.h"
-
-CJBig2_GRDProc::CJBig2_GRDProc()
- : m_loopIndex(0),
- m_pLine(nullptr),
- m_pPause(nullptr),
- m_DecodeType(0),
- LTP(0) {
- m_ReplaceRect.left = 0;
- m_ReplaceRect.bottom = 0;
- m_ReplaceRect.top = 0;
- m_ReplaceRect.right = 0;
-}
-
-bool CJBig2_GRDProc::UseTemplate0Opt3() const {
- return (GBAT[0] == 3) && (GBAT[1] == -1) && (GBAT[2] == -3) &&
- (GBAT[3] == -1) && (GBAT[4] == 2) && (GBAT[5] == -2) &&
- (GBAT[6] == -2) && (GBAT[7] == -2);
-}
-
-bool CJBig2_GRDProc::UseTemplate1Opt3() const {
- return (GBAT[0] == 3) && (GBAT[1] == -1);
-}
-
-bool CJBig2_GRDProc::UseTemplate23Opt3() const {
- return (GBAT[0] == 2) && (GBAT[1] == -1);
-}
-
-CJBig2_Image* CJBig2_GRDProc::decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- if (GBW == 0 || GBH == 0)
- return new CJBig2_Image(GBW, GBH);
-
- if (GBTEMPLATE == 0) {
- if (UseTemplate0Opt3())
- return decode_Arith_Template0_opt3(pArithDecoder, gbContext);
- return decode_Arith_Template0_unopt(pArithDecoder, gbContext);
- } else if (GBTEMPLATE == 1) {
- if (UseTemplate1Opt3())
- return decode_Arith_Template1_opt3(pArithDecoder, gbContext);
- return decode_Arith_Template1_unopt(pArithDecoder, gbContext);
- } else if (GBTEMPLATE == 2) {
- if (UseTemplate23Opt3())
- return decode_Arith_Template2_opt3(pArithDecoder, gbContext);
- return decode_Arith_Template2_unopt(pArithDecoder, gbContext);
- } else {
- if (UseTemplate23Opt3())
- return decode_Arith_Template3_opt3(pArithDecoder, gbContext);
- return decode_Arith_Template3_unopt(pArithDecoder, gbContext);
- }
-}
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_opt3(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- uint8_t* pLine, *pLine1, *pLine2, cVal;
- int32_t nStride, nStride2, k;
- int32_t nLineBytes, nBitsLeft, cc;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- if (!GBREG->m_pData)
- return nullptr;
-
- pLine = GBREG->m_pData;
- nStride = GBREG->m_nStride;
- nStride2 = nStride << 1;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- FX_DWORD height = GBH & 0x7fffffff;
- for (FX_DWORD h = 0; h < height; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- if (h > 1) {
- pLine1 = pLine - nStride2;
- pLine2 = pLine - nStride;
- line1 = (*pLine1++) << 6;
- line2 = *pLine2++;
- CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0));
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | ((*pLine1++) << 6);
- line2 = (line2 << 8) | (*pLine2++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
- ((line1 >> k) & 0x0800) | ((line2 >> k) & 0x0010));
- }
- pLine[cc] = cVal;
- }
- line1 <<= 8;
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT =
- (((CONTEXT & 0x7bf7) << 1) | bVal |
- ((line1 >> (7 - k)) & 0x0800) | ((line2 >> (7 - k)) & 0x0010));
- }
- pLine[nLineBytes] = cVal;
- } else {
- pLine2 = pLine - nStride;
- line2 = (h & 1) ? (*pLine2++) : 0;
- CONTEXT = (line2 & 0x07f0);
- for (cc = 0; cc < nLineBytes; cc++) {
- if (h & 1) {
- line2 = (line2 << 8) | (*pLine2++);
- }
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT =
- (((CONTEXT & 0x7bf7) << 1) | bVal | ((line2 >> k) & 0x0010));
- }
- pLine[cc] = cVal;
- }
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
- (((line2 >> (7 - k))) & 0x0010));
- }
- pLine[nLineBytes] = cVal;
- }
- }
- pLine += nStride;
- }
- return GBREG.release();
-}
-
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template0_unopt(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2, line3;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- GBREG->fill(0);
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- line1 = GBREG->getPixel(1, h - 2);
- line1 |= GBREG->getPixel(0, h - 2) << 1;
- line2 = GBREG->getPixel(2, h - 1);
- line2 |= GBREG->getPixel(1, h - 1) << 1;
- line2 |= GBREG->getPixel(0, h - 1) << 2;
- line3 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, h)) {
- bVal = 0;
- } else {
- CONTEXT = line3;
- CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4;
- CONTEXT |= line2 << 5;
- CONTEXT |= GBREG->getPixel(w + GBAT[2], h + GBAT[3]) << 10;
- CONTEXT |= GBREG->getPixel(w + GBAT[4], h + GBAT[5]) << 11;
- CONTEXT |= line1 << 12;
- CONTEXT |= GBREG->getPixel(w + GBAT[6], h + GBAT[7]) << 15;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- GBREG->setPixel(w, h, bVal);
- }
- line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07;
- line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f;
- line3 = ((line3 << 1) | bVal) & 0x0f;
- }
- }
- }
- return GBREG.release();
-}
-
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_opt3(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- uint8_t* pLine, *pLine1, *pLine2, cVal;
- int32_t nStride, nStride2, k;
- int32_t nLineBytes, nBitsLeft, cc;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- if (!GBREG->m_pData)
- return nullptr;
-
- pLine = GBREG->m_pData;
- nStride = GBREG->m_nStride;
- nStride2 = nStride << 1;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0795]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- if (h > 1) {
- pLine1 = pLine - nStride2;
- pLine2 = pLine - nStride;
- line1 = (*pLine1++) << 4;
- line2 = *pLine2++;
- CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8);
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | ((*pLine1++) << 4);
- line2 = (line2 << 8) | (*pLine2++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
- ((line1 >> k) & 0x0200) | ((line2 >> (k + 1)) & 0x0008);
- }
- pLine[cc] = cVal;
- }
- line1 <<= 8;
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
- ((line1 >> (7 - k)) & 0x0200) |
- ((line2 >> (8 - k)) & 0x0008);
- }
- pLine[nLineBytes] = cVal;
- } else {
- pLine2 = pLine - nStride;
- line2 = (h & 1) ? (*pLine2++) : 0;
- CONTEXT = (line2 >> 1) & 0x01f8;
- for (cc = 0; cc < nLineBytes; cc++) {
- if (h & 1) {
- line2 = (line2 << 8) | (*pLine2++);
- }
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
- ((line2 >> (k + 1)) & 0x0008);
- }
- pLine[cc] = cVal;
- }
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT =
- ((CONTEXT & 0x0efb) << 1) | bVal | ((line2 >> (8 - k)) & 0x0008);
- }
- pLine[nLineBytes] = cVal;
- }
- }
- pLine += nStride;
- }
- return GBREG.release();
-}
-
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template1_unopt(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2, line3;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- GBREG->fill(0);
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0795]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- line1 = GBREG->getPixel(2, h - 2);
- line1 |= GBREG->getPixel(1, h - 2) << 1;
- line1 |= GBREG->getPixel(0, h - 2) << 2;
- line2 = GBREG->getPixel(2, h - 1);
- line2 |= GBREG->getPixel(1, h - 1) << 1;
- line2 |= GBREG->getPixel(0, h - 1) << 2;
- line3 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, h)) {
- bVal = 0;
- } else {
- CONTEXT = line3;
- CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 3;
- CONTEXT |= line2 << 4;
- CONTEXT |= line1 << 9;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- GBREG->setPixel(w, h, bVal);
- }
- line1 = ((line1 << 1) | GBREG->getPixel(w + 3, h - 2)) & 0x0f;
- line2 = ((line2 << 1) | GBREG->getPixel(w + 3, h - 1)) & 0x1f;
- line3 = ((line3 << 1) | bVal) & 0x07;
- }
- }
- }
- return GBREG.release();
-}
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_opt3(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- uint8_t* pLine, *pLine1, *pLine2, cVal;
- int32_t nStride, nStride2, k;
- int32_t nLineBytes, nBitsLeft, cc;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- if (!GBREG->m_pData)
- return nullptr;
-
- pLine = GBREG->m_pData;
- nStride = GBREG->m_nStride;
- nStride2 = nStride << 1;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- if (h > 1) {
- pLine1 = pLine - nStride2;
- pLine2 = pLine - nStride;
- line1 = (*pLine1++) << 1;
- line2 = *pLine2++;
- CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c);
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | ((*pLine1++) << 1);
- line2 = (line2 << 8) | (*pLine2++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- ((line1 >> k) & 0x0080) | ((line2 >> (k + 3)) & 0x0004);
- }
- pLine[cc] = cVal;
- }
- line1 <<= 8;
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- ((line1 >> (7 - k)) & 0x0080) |
- ((line2 >> (10 - k)) & 0x0004);
- }
- pLine[nLineBytes] = cVal;
- } else {
- pLine2 = pLine - nStride;
- line2 = (h & 1) ? (*pLine2++) : 0;
- CONTEXT = (line2 >> 3) & 0x007c;
- for (cc = 0; cc < nLineBytes; cc++) {
- if (h & 1) {
- line2 = (line2 << 8) | (*pLine2++);
- }
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- ((line2 >> (k + 3)) & 0x0004);
- }
- pLine[cc] = cVal;
- }
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- (((line2 >> (10 - k))) & 0x0004);
- }
- pLine[nLineBytes] = cVal;
- }
- }
- pLine += nStride;
- }
- return GBREG.release();
-}
-
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template2_unopt(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2, line3;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- GBREG->fill(0);
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- line1 = GBREG->getPixel(1, h - 2);
- line1 |= GBREG->getPixel(0, h - 2) << 1;
- line2 = GBREG->getPixel(1, h - 1);
- line2 |= GBREG->getPixel(0, h - 1) << 1;
- line3 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, h)) {
- bVal = 0;
- } else {
- CONTEXT = line3;
- CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 2;
- CONTEXT |= line2 << 3;
- CONTEXT |= line1 << 7;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- GBREG->setPixel(w, h, bVal);
- }
- line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 2)) & 0x07;
- line2 = ((line2 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x0f;
- line3 = ((line3 << 1) | bVal) & 0x03;
- }
- }
- }
- return GBREG.release();
-}
-
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_opt3(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1;
- uint8_t* pLine, *pLine1, cVal;
- int32_t nStride, k;
- int32_t nLineBytes, nBitsLeft, cc;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- if (!GBREG->m_pData)
- return nullptr;
-
- pLine = GBREG->m_pData;
- nStride = GBREG->m_nStride;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0195]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- if (h > 0) {
- pLine1 = pLine - nStride;
- line1 = *pLine1++;
- CONTEXT = (line1 >> 1) & 0x03f0;
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | (*pLine1++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal |
- ((line1 >> (k + 1)) & 0x0010);
- }
- pLine[cc] = cVal;
- }
- line1 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT =
- ((CONTEXT & 0x01f7) << 1) | bVal | ((line1 >> (8 - k)) & 0x0010);
- }
- pLine[nLineBytes] = cVal;
- } else {
- CONTEXT = 0;
- for (cc = 0; cc < nLineBytes; cc++) {
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal;
- }
- pLine[cc] = cVal;
- }
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal;
- }
- pLine[nLineBytes] = cVal;
- }
- }
- pLine += nStride;
- }
- return GBREG.release();
-}
-
-CJBig2_Image* CJBig2_GRDProc::decode_Arith_Template3_unopt(
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext) {
- FX_BOOL LTP, SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- LTP = 0;
- std::unique_ptr<CJBig2_Image> GBREG(new CJBig2_Image(GBW, GBH));
- GBREG->fill(0);
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0195]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- GBREG->copyLine(h, h - 1);
- } else {
- line1 = GBREG->getPixel(1, h - 1);
- line1 |= GBREG->getPixel(0, h - 1) << 1;
- line2 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, h)) {
- bVal = 0;
- } else {
- CONTEXT = line2;
- CONTEXT |= GBREG->getPixel(w + GBAT[0], h + GBAT[1]) << 4;
- CONTEXT |= line1 << 5;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- GBREG->setPixel(w, h, bVal);
- }
- line1 = ((line1 << 1) | GBREG->getPixel(w + 2, h - 1)) & 0x1f;
- line2 = ((line2 << 1) | bVal) & 0x0f;
- }
- }
- }
- return GBREG.release();
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::Start_decode_Arith(
- CJBig2_Image** pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- if (GBW == 0 || GBH == 0) {
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_READY;
- m_pPause = pPause;
- if (!*pImage)
- *pImage = new CJBig2_Image(GBW, GBH);
- if (!(*pImage)->m_pData) {
- delete *pImage;
- *pImage = nullptr;
- m_ProssiveStatus = FXCODEC_STATUS_ERROR;
- return FXCODEC_STATUS_ERROR;
- }
- m_DecodeType = 1;
- m_pImage = pImage;
- (*m_pImage)->fill(0);
- m_pArithDecoder = pArithDecoder;
- m_gbContext = gbContext;
- LTP = 0;
- m_pLine = nullptr;
- m_loopIndex = 0;
- return decode_Arith(pPause);
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith(IFX_Pause* pPause) {
- int iline = m_loopIndex;
- CJBig2_Image* pImage = *m_pImage;
- if (GBTEMPLATE == 0) {
- if (UseTemplate0Opt3()) {
- m_ProssiveStatus = decode_Arith_Template0_opt3(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- } else {
- m_ProssiveStatus = decode_Arith_Template0_unopt(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- }
- } else if (GBTEMPLATE == 1) {
- if (UseTemplate1Opt3()) {
- m_ProssiveStatus = decode_Arith_Template1_opt3(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- } else {
- m_ProssiveStatus = decode_Arith_Template1_unopt(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- }
- } else if (GBTEMPLATE == 2) {
- if (UseTemplate23Opt3()) {
- m_ProssiveStatus = decode_Arith_Template2_opt3(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- } else {
- m_ProssiveStatus = decode_Arith_Template2_unopt(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- }
- } else {
- if (UseTemplate23Opt3()) {
- m_ProssiveStatus = decode_Arith_Template3_opt3(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- } else {
- m_ProssiveStatus = decode_Arith_Template3_unopt(pImage, m_pArithDecoder,
- m_gbContext, pPause);
- }
- }
- m_ReplaceRect.left = 0;
- m_ReplaceRect.right = pImage->m_nWidth;
- m_ReplaceRect.top = iline;
- m_ReplaceRect.bottom = m_loopIndex;
- if (m_ProssiveStatus == FXCODEC_STATUS_DECODE_FINISH) {
- m_loopIndex = 0;
- }
- return m_ProssiveStatus;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::Start_decode_MMR(CJBig2_Image** pImage,
- CJBig2_BitStream* pStream,
- IFX_Pause* pPause) {
- int bitpos, i;
- *pImage = new CJBig2_Image(GBW, GBH);
- if (!(*pImage)->m_pData) {
- delete (*pImage);
- (*pImage) = nullptr;
- m_ProssiveStatus = FXCODEC_STATUS_ERROR;
- return m_ProssiveStatus;
- }
- bitpos = (int)pStream->getBitPos();
- FaxG4Decode(pStream->getBuf(), pStream->getLength(), &bitpos,
- (*pImage)->m_pData, GBW, GBH, (*pImage)->m_nStride);
- pStream->setBitPos(bitpos);
- for (i = 0; (FX_DWORD)i < (*pImage)->m_nStride * GBH; i++) {
- (*pImage)->m_pData[i] = ~(*pImage)->m_pData[i];
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return m_ProssiveStatus;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::Continue_decode(IFX_Pause* pPause) {
- if (m_ProssiveStatus != FXCODEC_STATUS_DECODE_TOBECONTINUE)
- return m_ProssiveStatus;
-
- if (m_DecodeType != 1) {
- m_ProssiveStatus = FXCODEC_STATUS_ERROR;
- return m_ProssiveStatus;
- }
-
- return decode_Arith(pPause);
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_opt3(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- uint8_t* pLine1, *pLine2, cVal;
- int32_t nStride, nStride2, k;
- int32_t nLineBytes, nBitsLeft, cc;
- if (!m_pLine) {
- m_pLine = pImage->m_pData;
- }
- nStride = pImage->m_nStride;
- nStride2 = nStride << 1;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- FX_DWORD height = GBH & 0x7fffffff;
- for (; m_loopIndex < height; m_loopIndex++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(m_loopIndex, m_loopIndex - 1);
- } else {
- if (m_loopIndex > 1) {
- pLine1 = m_pLine - nStride2;
- pLine2 = m_pLine - nStride;
- line1 = (*pLine1++) << 6;
- line2 = *pLine2++;
- CONTEXT = ((line1 & 0xf800) | (line2 & 0x07f0));
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | ((*pLine1++) << 6);
- line2 = (line2 << 8) | (*pLine2++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
- ((line1 >> k) & 0x0800) | ((line2 >> k) & 0x0010));
- }
- m_pLine[cc] = cVal;
- }
- line1 <<= 8;
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT =
- (((CONTEXT & 0x7bf7) << 1) | bVal |
- ((line1 >> (7 - k)) & 0x0800) | ((line2 >> (7 - k)) & 0x0010));
- }
- m_pLine[nLineBytes] = cVal;
- } else {
- pLine2 = m_pLine - nStride;
- line2 = (m_loopIndex & 1) ? (*pLine2++) : 0;
- CONTEXT = (line2 & 0x07f0);
- for (cc = 0; cc < nLineBytes; cc++) {
- if (m_loopIndex & 1) {
- line2 = (line2 << 8) | (*pLine2++);
- }
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT =
- (((CONTEXT & 0x7bf7) << 1) | bVal | ((line2 >> k) & 0x0010));
- }
- m_pLine[cc] = cVal;
- }
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = (((CONTEXT & 0x7bf7) << 1) | bVal |
- ((line2 >> (7 - k)) & 0x0010));
- }
- m_pLine[nLineBytes] = cVal;
- }
- }
- m_pLine += nStride;
- if (pPause && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template0_unopt(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2, line3;
- for (; m_loopIndex < GBH; m_loopIndex++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x9b25]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(m_loopIndex, m_loopIndex - 1);
- } else {
- line1 = pImage->getPixel(1, m_loopIndex - 2);
- line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1;
- line2 = pImage->getPixel(2, m_loopIndex - 1);
- line2 |= pImage->getPixel(1, m_loopIndex - 1) << 1;
- line2 |= pImage->getPixel(0, m_loopIndex - 1) << 2;
- line3 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, m_loopIndex)) {
- bVal = 0;
- } else {
- CONTEXT = line3;
- CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4;
- CONTEXT |= line2 << 5;
- CONTEXT |= pImage->getPixel(w + GBAT[2], m_loopIndex + GBAT[3]) << 10;
- CONTEXT |= pImage->getPixel(w + GBAT[4], m_loopIndex + GBAT[5]) << 11;
- CONTEXT |= line1 << 12;
- CONTEXT |= pImage->getPixel(w + GBAT[6], m_loopIndex + GBAT[7]) << 15;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- pImage->setPixel(w, m_loopIndex, bVal);
- }
- line1 =
- ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07;
- line2 =
- ((line2 << 1) | pImage->getPixel(w + 3, m_loopIndex - 1)) & 0x1f;
- line3 = ((line3 << 1) | bVal) & 0x0f;
- }
- }
- if (pPause && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_opt3(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- uint8_t* pLine1, *pLine2, cVal;
- int32_t nStride, nStride2, k;
- int32_t nLineBytes, nBitsLeft, cc;
- if (!m_pLine) {
- m_pLine = pImage->m_pData;
- }
- nStride = pImage->m_nStride;
- nStride2 = nStride << 1;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- for (; m_loopIndex < GBH; m_loopIndex++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0795]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(m_loopIndex, m_loopIndex - 1);
- } else {
- if (m_loopIndex > 1) {
- pLine1 = m_pLine - nStride2;
- pLine2 = m_pLine - nStride;
- line1 = (*pLine1++) << 4;
- line2 = *pLine2++;
- CONTEXT = (line1 & 0x1e00) | ((line2 >> 1) & 0x01f8);
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | ((*pLine1++) << 4);
- line2 = (line2 << 8) | (*pLine2++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
- ((line1 >> k) & 0x0200) | ((line2 >> (k + 1)) & 0x0008);
- }
- m_pLine[cc] = cVal;
- }
- line1 <<= 8;
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
- ((line1 >> (7 - k)) & 0x0200) |
- ((line2 >> (8 - k)) & 0x0008);
- }
- m_pLine[nLineBytes] = cVal;
- } else {
- pLine2 = m_pLine - nStride;
- line2 = (m_loopIndex & 1) ? (*pLine2++) : 0;
- CONTEXT = (line2 >> 1) & 0x01f8;
- for (cc = 0; cc < nLineBytes; cc++) {
- if (m_loopIndex & 1) {
- line2 = (line2 << 8) | (*pLine2++);
- }
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x0efb) << 1) | bVal |
- ((line2 >> (k + 1)) & 0x0008);
- }
- m_pLine[cc] = cVal;
- }
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT =
- ((CONTEXT & 0x0efb) << 1) | bVal | ((line2 >> (8 - k)) & 0x0008);
- }
- m_pLine[nLineBytes] = cVal;
- }
- }
- m_pLine += nStride;
- if (pPause && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template1_unopt(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2, line3;
- for (FX_DWORD h = 0; h < GBH; h++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0795]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(h, h - 1);
- } else {
- line1 = pImage->getPixel(2, h - 2);
- line1 |= pImage->getPixel(1, h - 2) << 1;
- line1 |= pImage->getPixel(0, h - 2) << 2;
- line2 = pImage->getPixel(2, h - 1);
- line2 |= pImage->getPixel(1, h - 1) << 1;
- line2 |= pImage->getPixel(0, h - 1) << 2;
- line3 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, h)) {
- bVal = 0;
- } else {
- CONTEXT = line3;
- CONTEXT |= pImage->getPixel(w + GBAT[0], h + GBAT[1]) << 3;
- CONTEXT |= line2 << 4;
- CONTEXT |= line1 << 9;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- pImage->setPixel(w, h, bVal);
- }
- line1 = ((line1 << 1) | pImage->getPixel(w + 3, h - 2)) & 0x0f;
- line2 = ((line2 << 1) | pImage->getPixel(w + 3, h - 1)) & 0x1f;
- line3 = ((line3 << 1) | bVal) & 0x07;
- }
- }
- if (pPause && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template2_opt3(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- uint8_t* pLine1, *pLine2, cVal;
- int32_t nStride, nStride2, k;
- int32_t nLineBytes, nBitsLeft, cc;
- if (!m_pLine) {
- m_pLine = pImage->m_pData;
- }
- nStride = pImage->m_nStride;
- nStride2 = nStride << 1;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- for (; m_loopIndex < GBH; m_loopIndex++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(m_loopIndex, m_loopIndex - 1);
- } else {
- if (m_loopIndex > 1) {
- pLine1 = m_pLine - nStride2;
- pLine2 = m_pLine - nStride;
- line1 = (*pLine1++) << 1;
- line2 = *pLine2++;
- CONTEXT = (line1 & 0x0380) | ((line2 >> 3) & 0x007c);
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | ((*pLine1++) << 1);
- line2 = (line2 << 8) | (*pLine2++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- ((line1 >> k) & 0x0080) | ((line2 >> (k + 3)) & 0x0004);
- }
- m_pLine[cc] = cVal;
- }
- line1 <<= 8;
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- ((line1 >> (7 - k)) & 0x0080) |
- ((line2 >> (10 - k)) & 0x0004);
- }
- m_pLine[nLineBytes] = cVal;
- } else {
- pLine2 = m_pLine - nStride;
- line2 = (m_loopIndex & 1) ? (*pLine2++) : 0;
- CONTEXT = (line2 >> 3) & 0x007c;
- for (cc = 0; cc < nLineBytes; cc++) {
- if (m_loopIndex & 1) {
- line2 = (line2 << 8) | (*pLine2++);
- }
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- ((line2 >> (k + 3)) & 0x0004);
- }
- m_pLine[cc] = cVal;
- }
- line2 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x01bd) << 1) | bVal |
- (((line2 >> (10 - k))) & 0x0004);
- }
- m_pLine[nLineBytes] = cVal;
- }
- }
- m_pLine += nStride;
- if (pPause && m_loopIndex % 50 == 0 && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template2_unopt(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2, line3;
- for (; m_loopIndex < GBH; m_loopIndex++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x00e5]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(m_loopIndex, m_loopIndex - 1);
- } else {
- line1 = pImage->getPixel(1, m_loopIndex - 2);
- line1 |= pImage->getPixel(0, m_loopIndex - 2) << 1;
- line2 = pImage->getPixel(1, m_loopIndex - 1);
- line2 |= pImage->getPixel(0, m_loopIndex - 1) << 1;
- line3 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, m_loopIndex)) {
- bVal = 0;
- } else {
- CONTEXT = line3;
- CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 2;
- CONTEXT |= line2 << 3;
- CONTEXT |= line1 << 7;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- pImage->setPixel(w, m_loopIndex, bVal);
- }
- line1 =
- ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 2)) & 0x07;
- line2 =
- ((line2 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x0f;
- line3 = ((line3 << 1) | bVal) & 0x03;
- }
- }
- if (pPause && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_opt3(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1;
- uint8_t* pLine1, cVal;
- int32_t nStride, k;
- int32_t nLineBytes, nBitsLeft, cc;
- if (!m_pLine) {
- m_pLine = pImage->m_pData;
- }
- nStride = pImage->m_nStride;
- nLineBytes = ((GBW + 7) >> 3) - 1;
- nBitsLeft = GBW - (nLineBytes << 3);
- for (; m_loopIndex < GBH; m_loopIndex++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0195]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(m_loopIndex, m_loopIndex - 1);
- } else {
- if (m_loopIndex > 0) {
- pLine1 = m_pLine - nStride;
- line1 = *pLine1++;
- CONTEXT = (line1 >> 1) & 0x03f0;
- for (cc = 0; cc < nLineBytes; cc++) {
- line1 = (line1 << 8) | (*pLine1++);
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal |
- ((line1 >> (k + 1)) & 0x0010);
- }
- m_pLine[cc] = cVal;
- }
- line1 <<= 8;
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT =
- ((CONTEXT & 0x01f7) << 1) | bVal | ((line1 >> (8 - k)) & 0x0010);
- }
- m_pLine[nLineBytes] = cVal;
- } else {
- CONTEXT = 0;
- for (cc = 0; cc < nLineBytes; cc++) {
- cVal = 0;
- for (k = 7; k >= 0; k--) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << k;
- CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal;
- }
- m_pLine[cc] = cVal;
- }
- cVal = 0;
- for (k = 0; k < nBitsLeft; k++) {
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- cVal |= bVal << (7 - k);
- CONTEXT = ((CONTEXT & 0x01f7) << 1) | bVal;
- }
- m_pLine[nLineBytes] = cVal;
- }
- }
- m_pLine += nStride;
- if (pPause && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
-
-FXCODEC_STATUS CJBig2_GRDProc::decode_Arith_Template3_unopt(
- CJBig2_Image* pImage,
- CJBig2_ArithDecoder* pArithDecoder,
- JBig2ArithCtx* gbContext,
- IFX_Pause* pPause) {
- FX_BOOL SLTP, bVal;
- FX_DWORD CONTEXT;
- FX_DWORD line1, line2;
- for (; m_loopIndex < GBH; m_loopIndex++) {
- if (TPGDON) {
- SLTP = pArithDecoder->DECODE(&gbContext[0x0195]);
- LTP = LTP ^ SLTP;
- }
- if (LTP == 1) {
- pImage->copyLine(m_loopIndex, m_loopIndex - 1);
- } else {
- line1 = pImage->getPixel(1, m_loopIndex - 1);
- line1 |= pImage->getPixel(0, m_loopIndex - 1) << 1;
- line2 = 0;
- for (FX_DWORD w = 0; w < GBW; w++) {
- if (USESKIP && SKIP->getPixel(w, m_loopIndex)) {
- bVal = 0;
- } else {
- CONTEXT = line2;
- CONTEXT |= pImage->getPixel(w + GBAT[0], m_loopIndex + GBAT[1]) << 4;
- CONTEXT |= line1 << 5;
- bVal = pArithDecoder->DECODE(&gbContext[CONTEXT]);
- }
- if (bVal) {
- pImage->setPixel(w, m_loopIndex, bVal);
- }
- line1 =
- ((line1 << 1) | pImage->getPixel(w + 2, m_loopIndex - 1)) & 0x1f;
- line2 = ((line2 << 1) | bVal) & 0x0f;
- }
- }
- if (pPause && pPause->NeedToPauseNow()) {
- m_loopIndex++;
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_TOBECONTINUE;
- return FXCODEC_STATUS_DECODE_TOBECONTINUE;
- }
- }
- m_ProssiveStatus = FXCODEC_STATUS_DECODE_FINISH;
- return FXCODEC_STATUS_DECODE_FINISH;
-}
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