Fix a bug when image width is odd in sycc422_to_rgb

core/src/fxcodec/codec/fx_codec_jpx_opj.cpp

 // Copyright 2014 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 "../../../include/fxcodec/fx_codec.h"
 #include "codec_int.h"
 #include "../fx_libopenjpeg/libopenjpeg20/openjpeg.h"
 #include "../lcms2/include/fx_lcms2.h"
@@ skipping 149 matching lines @@
     maxw = (int)img->comps[0].w;
     maxh = (int)img->comps[0].h;
     max = maxw * maxh;
     y = img->comps[0].data;
     cb = img->comps[1].data;
     cr = img->comps[2].data;
     d0 = r = FX_Alloc(int, (size_t)max);
     d1 = g = FX_Alloc(int, (size_t)max);
     d2 = b = FX_Alloc(int, (size_t)max);
     for(i = 0; i < maxh; ++i) {
-        for(j = 0; j < maxw; j += 2) {
+        for (j = 0; j < maxw; ++j, ++y, ++r, ++g, ++b) {
             sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
-            ++y;
-            ++r;
-            ++g;
-            ++b;
-            sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b);
-            ++y;
-            ++r;
-            ++g;
-            ++b;
-            ++cb;
-            ++cr;
+            if (j % 2){
+                ++cb;
+                ++cr;
+            }
         }
     }
     FX_Free(img->comps[0].data);
     img->comps[0].data = d0;
     FX_Free(img->comps[1].data);
     img->comps[1].data = d1;
     FX_Free(img->comps[2].data);
     img->comps[2].data = d2;
     img->comps[1].w = maxw;
     img->comps[1].h = maxh;
@@ skipping 586 matching lines @@
 FX_BOOL CCodec_JpxModule::Decode(void* ctx, FX_LPBYTE dest_data, int pitch, FX_BOOL bTranslateColor, FX_LPBYTE offsets)
 {
     CJPX_Decoder* pDecoder = (CJPX_Decoder*)ctx;
     return pDecoder->Decode(dest_data, pitch, bTranslateColor, offsets);
 }
 void CCodec_JpxModule::DestroyDecoder(void* ctx)
 {
     CJPX_Decoder* pDecoder = (CJPX_Decoder*)ctx;
     delete pDecoder;
 }