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Handle failed memory allocations

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svn path=/trunk/; revision=42870
This commit is contained in:
Gregor Schneider 2009-08-22 19:37:31 +00:00
parent 79c1f38e87
commit 030d5a52f3
1 changed files with 25 additions and 1 deletions
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26
reactos/dll/win32/gdi32/objects/font.c
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@ -118,6 +118,8 @@ static LPWSTR FONT_mbtowc(HDC hdc, LPCSTR str, INT count, INT *plenW, UINT *pCP)
if(count == -1) count = strlen(str);
lenW = MultiByteToWideChar(cp, 0, str, count, NULL, 0);
strW = HeapAlloc(GetProcessHeap(), 0, lenW*sizeof(WCHAR));
if (!strW)
return NULL;
MultiByteToWideChar(cp, 0, str, count, strW, lenW);
DPRINT("mapped %s -> %S\n", str, strW);
if(plenW) *plenW = lenW;
@ -322,7 +324,13 @@ GetCharacterPlacementA(
lpStringW = FONT_mbtowc(hdc, lpString, uCount, &uCountW, &font_cp);
if(lpResults->lpOutString)
{
resultsW.lpOutString = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR)*uCountW);
if (resultsW.lpOutString == NULL)
{
return 0;
}
}
ret = GetCharacterPlacementW(hdc, lpStringW, uCountW, nMaxExtent, &resultsW, dwFlags);
@ -993,7 +1001,13 @@ GetOutlineTextMetricsA(
if((ret = GetOutlineTextMetricsW(hdc, 0, NULL)) == 0)
return 0;
if(ret > sizeof(buf))
lpOTMW = HeapAlloc(GetProcessHeap(), 0, ret);
{
lpOTMW = HeapAlloc(GetProcessHeap(), 0, ret);
if (lpOTMW == NULL)
{
return 0;
}
}
GetOutlineTextMetricsW(hdc, ret, lpOTMW);
needed = sizeof(OUTLINETEXTMETRICA);
@ -1021,10 +1035,16 @@ GetOutlineTextMetricsA(
DPRINT("needed = %d\n", needed);
if(needed > cbData)
{
/* Since the supplied buffer isn't big enough, we'll alloc one
that is and memcpy the first cbData bytes into the lpOTM at
the end. */
output = HeapAlloc(GetProcessHeap(), 0, needed);
if (output == NULL)
{
goto end;
}
}
ret = output->otmSize = min(needed, cbData);
FONT_TextMetricWToA( &lpOTMW->otmTextMetrics, &output->otmTextMetrics );
@ -1207,6 +1227,10 @@ GetKerningPairsA( HDC hDC,
if (!cPairs && !kern_pairA) return total_kern_pairs;
kern_pairW = HeapAlloc(GetProcessHeap(), 0, total_kern_pairs * sizeof(*kern_pairW));
if (kern_pairW == NULL)
{
return 0;
}
GetKerningPairsW(hDC, total_kern_pairs, kern_pairW);
for (i = 0; i < total_kern_pairs; i++)