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| 1 // Copyright 2015 PDFium Authors. All rights reserved. | 1 // Copyright 2015 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | 6 |
| 7 #include "JBig2_GrrdProc.h" | 7 #include "core/src/fxcodec/jbig2/JBig2_GrrdProc.h" |
| 8 | 8 |
| 9 #include <memory> | 9 #include <memory> |
| 10 | 10 |
| 11 #include "JBig2_ArithDecoder.h" | 11 #include "core/src/fxcodec/jbig2/JBig2_ArithDecoder.h" |
| 12 #include "JBig2_BitStream.h" | 12 #include "core/src/fxcodec/jbig2/JBig2_BitStream.h" |
| 13 #include "JBig2_Image.h" | 13 #include "core/src/fxcodec/jbig2/JBig2_Image.h" |
| 14 | 14 |
| 15 CJBig2_Image* CJBig2_GRRDProc::decode(CJBig2_ArithDecoder* pArithDecoder, | 15 CJBig2_Image* CJBig2_GRRDProc::decode(CJBig2_ArithDecoder* pArithDecoder, |
| 16 JBig2ArithCtx* grContext) { | 16 JBig2ArithCtx* grContext) { |
| 17 if (GRW == 0 || GRH == 0) | 17 if (GRW == 0 || GRH == 0) |
| 18 return new CJBig2_Image(GRW, GRH); | 18 return new CJBig2_Image(GRW, GRH); |
| 19 | 19 |
| 20 if (GRTEMPLATE == 0) { | 20 if (GRTEMPLATE == 0) { |
| 21 if ((GRAT[0] == -1) && (GRAT[1] == -1) && (GRAT[2] == -1) && | 21 if ((GRAT[0] == -1) && (GRAT[1] == -1) && (GRAT[2] == -1) && |
| 22 (GRAT[3] == -1) && (GRREFERENCEDX == 0) && | 22 (GRAT[3] == -1) && (GRREFERENCEDX == 0) && |
| 23 (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { | 23 (GRW == (FX_DWORD)GRREFERENCE->m_nWidth)) { |
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| 507 pLine[w >> 3] = cVal; | 507 pLine[w >> 3] = cVal; |
| 508 } | 508 } |
| 509 } | 509 } |
| 510 pLine += nStride; | 510 pLine += nStride; |
| 511 if (h < GRHR + GRREFERENCEDY) { | 511 if (h < GRHR + GRREFERENCEDY) { |
| 512 pLineR += nStrideR; | 512 pLineR += nStrideR; |
| 513 } | 513 } |
| 514 } | 514 } |
| 515 return GRREG.release(); | 515 return GRREG.release(); |
| 516 } | 516 } |
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