Skip to content

W
wine-winehq
Commit a7bbf47f authored by Dave Belanger's avatar Dave Belanger Committed by Alexandre Julliard
Browse files
Options

Avoid excessive heap memory reallocation when generating EMF

metarecords in memory.
parent c93c27f4
Hide whitespace changes
Inline Side-by-side
Showing with 10 additions and 6 deletions
dlls/gdi/enhmfdrv/init.c
View file @ a7bbf47f
...@@ -185,12 +185,16 @@ BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr ) ...@@ -185,12 +185,16 @@ BOOL EMFDRV_WriteRecord( PHYSDEV dev, EMR *emr )
if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL)) if (!WriteFile(physDev->hFile, (char *)emr, emr->nSize, NULL, NULL))
return FALSE; return FALSE;
} else { } else {
len = physDev->emh->nBytes; DWORD nEmfSize = HeapSize(GetProcessHeap(), 0, physDev->emh);
emh = HeapReAlloc( GetProcessHeap(), 0, physDev->emh, len ); len = physDev->emh->nBytes;
if (!emh) return FALSE; if (len > nEmfSize) {
physDev->emh = emh; nEmfSize += (nEmfSize / 2) + emr->nSize;
memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr, emh = HeapReAlloc(GetProcessHeap(), 0, physDev->emh, nEmfSize);
emr->nSize); if (!emh) return FALSE;
physDev->emh = emh;
}
memcpy((CHAR *)physDev->emh + physDev->emh->nBytes - emr->nSize, emr,
emr->nSize);
} }
return TRUE; return TRUE;
} }
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment