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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 "core/fxcodec/jbig2/JBig2_GrrdProc.h" | 7 #include "core/fxcodec/jbig2/JBig2_GrrdProc.h" |
8 | 8 |
9 #include <memory> | 9 #include <memory> |
10 | 10 |
11 #include "core/fxcodec/jbig2/JBig2_ArithDecoder.h" | 11 #include "core/fxcodec/jbig2/JBig2_ArithDecoder.h" |
12 #include "core/fxcodec/jbig2/JBig2_BitStream.h" | 12 #include "core/fxcodec/jbig2/JBig2_BitStream.h" |
13 #include "core/fxcodec/jbig2/JBig2_Image.h" | 13 #include "core/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) { |
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 == (uint32_t)GRREFERENCE->width())) { | 23 (GRW == (uint32_t)GRREFERENCE->width())) { |
24 return decode_Template0_opt(pArithDecoder, grContext); | 24 return decode_Template0_opt(pArithDecoder, grContext); |
25 } | 25 } |
26 return decode_Template0_unopt(pArithDecoder, grContext); | 26 return decode_Template0_unopt(pArithDecoder, grContext); |
27 } | 27 } |
28 | 28 |
29 if ((GRREFERENCEDX == 0) && (GRW == (uint32_t)GRREFERENCE->width())) | 29 if ((GRREFERENCEDX == 0) && (GRW == (uint32_t)GRREFERENCE->width())) |
30 return decode_Template1_opt(pArithDecoder, grContext); | 30 return decode_Template1_opt(pArithDecoder, grContext); |
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494 pLine[w >> 3] = cVal; | 494 pLine[w >> 3] = cVal; |
495 } | 495 } |
496 } | 496 } |
497 pLine += nStride; | 497 pLine += nStride; |
498 if (h < GRHR + GRREFERENCEDY) { | 498 if (h < GRHR + GRREFERENCEDY) { |
499 pLineR += nStrideR; | 499 pLineR += nStrideR; |
500 } | 500 } |
501 } | 501 } |
502 return GRREG.release(); | 502 return GRREG.release(); |
503 } | 503 } |
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