diff options
| author | Rider Linden <rider@lindenlab.com> | 2016-04-12 13:56:49 -0700 |
|---|---|---|
| committer | Rider Linden <rider@lindenlab.com> | 2016-04-12 13:56:49 -0700 |
| commit | 94d1a54e33845e1488ed52961416526ed232ddb1 (patch) | |
| tree | ddce084774e9bd6f2d6e88687c695e918290ca50 | |
| parent | 0ca3c5c7fdd6790d98259fc6d8459633896ce7a0 (diff) | |
Shift of negative is undefined.
| -rwxr-xr-x | indra/llkdu/llimagej2ckdu.cpp | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/indra/llkdu/llimagej2ckdu.cpp b/indra/llkdu/llimagej2ckdu.cpp index 6a8959517d..282c859e9e 100755 --- a/indra/llkdu/llimagej2ckdu.cpp +++ b/indra/llkdu/llimagej2ckdu.cpp @@ -1034,7 +1034,7 @@ all necessary level shifting, type conversion, rounding and truncation. */ val = (kdu_int32)(sp->fval*scale16); val = (val+128)>>8; // May be faster than true rounding val += 128; - if (val & ((-1)<<8)) + if (val & ((0xffffffffU)<<8)) { val = (val < 0 ? 0 : 255); } @@ -1052,7 +1052,7 @@ all necessary level shifting, type conversion, rounding and truncation. */ val = sp->ival; val = (val+offset)>>downshift; val += 128; - if (val & ((-1)<<8)) + if (val & ((0xffffffffU)<<8)) { val = (val < 0 ? 0 : 255); } @@ -1075,7 +1075,7 @@ all necessary level shifting, type conversion, rounding and truncation. */ val += (1<<(KDU_FIX_POINT-8))>>1; val >>= (KDU_FIX_POINT-8); val += 128; - if (val & ((-1)<<8)) + if (val & ((0xffffffffU)<<8)) { val = (val < 0 ? 0 : 255); } @@ -1094,7 +1094,7 @@ all necessary level shifting, type conversion, rounding and truncation. */ val = (val+offset)>>downshift; val <<= upshift; val += 128; - if (val & ((-1)<<8)) + if (val & ((0xffffffffU)<<8)) { val = (val < 0 ? 0 : 256 - (1<<upshift)); } @@ -1116,7 +1116,7 @@ all necessary level shifting, type conversion, rounding and truncation. */ val = sp->ival; val = (val+offset)>>downshift; val += 128; - if (val & ((-1)<<8)) + if (val & ((0xffffffffU)<<8)) { val = (val < 0 ? 0 : 255); } @@ -1132,7 +1132,7 @@ all necessary level shifting, type conversion, rounding and truncation. */ val = sp->ival; val <<= upshift; val += 128; - if (val & ((-1)<<8)) + if (val & ((0xffffffffU)<<8)) { val = (val < 0 ? 0 : 256 - (1<<upshift)); } |