use memset instead of loop

Change-Id: I572f52658914a0814bc3d3990830e247275e110b

use memset instead of loop
Change-Id: I572f52658914a0814bc3d3990830e247275e110b
3ae57096 · Caolán McNamara · 9fadf818 · 3ae57096
Kaydet (Commit) 3ae57096 authored Şub 28, 2017 tarafından Caolán McNamara
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Showing with 7 additions and 3 deletions

ccidecom.cxx filter/source/graphicfilter/itiff/ccidecom.cxx +7 -3

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--- a/filter/source/graphicfilter/itiff/ccidecom.cxx
+++ b/filter/source/graphicfilter/itiff/ccidecom.cxx
@@ -995,10 +995,14 @@ void CCIDecompressor::Read1DScanlineData(sal_uInt8 * pTarget, sal_uInt16 nTarget
                nDataBits = nDataBits - nTgtFreeByteBits;
                pTarget++;
                nTgtFreeByteBits=8;
-                while (nDataBits>=8) {
-                    *(pTarget++)=nBlackOrWhite;
-                    nDataBits-=8;
+                if (nDataBits >= 8)
+                {
+                    const sal_uInt16 nDataBytes = nDataBits / 8;
+                    memset(pTarget, nBlackOrWhite, nDataBytes);
+                    pTarget += nDataBytes;
+                    nDataBits -= nDataBytes * 8;
                }
+
                if (nDataBits>0) {
                    *pTarget=nBlackOrWhite;
                    nTgtFreeByteBits = nTgtFreeByteBits - nDataBits;