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Avoid heap reallocation each time a metarecord is written in memory 

(based on a patch by Warren Baird).
This commit is contained in:
Alexandre Julliard 2003-09-03 00:18:33 +00:00
parent 81c31701d2
commit 038ede8474
1 changed files with 12 additions and 4 deletions
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16
dlls/gdi/mfdrv/init.c
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@ -378,7 +378,7 @@ HMETAFILE WINAPI CloseMetaFile(
*/
BOOL MFDRV_WriteRecord( PHYSDEV dev, METARECORD *mr, DWORD rlen)
{
DWORD len;
DWORD len, size;
METAHEADER *mh;
METAFILEDRV_PDEVICE *physDev = (METAFILEDRV_PDEVICE *)dev;
@ -386,9 +386,17 @@ BOOL MFDRV_WriteRecord( PHYSDEV dev, METARECORD *mr, DWORD rlen)
{
case METAFILE_MEMORY:
len = physDev->mh->mtSize * 2 + rlen;
mh = HeapReAlloc( GetProcessHeap(), 0, physDev->mh, len );
if (!mh) return FALSE;
physDev->mh = mh;
/* reallocate memory if needed */
size = HeapSize( GetProcessHeap(), 0, physDev->mh );
if (len > size)
{
/*expand size*/
size += size / 2 + rlen;
mh = HeapReAlloc( GetProcessHeap(), 0, physDev->mh, size);
if (!mh) return FALSE;
physDev->mh = mh;
TRACE("Reallocated metafile: new size is %ld\n",size);
}
memcpy((WORD *)physDev->mh + physDev->mh->mtSize, mr, rlen);
break;
case METAFILE_DISK: