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gdiplus: Prevent integer overflows when rounding text bounds.
Mono calls GdipMeasureString with a height so large that rounding and converting it to an integer gives a negative result.
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@ -3493,7 +3493,7 @@ static GpStatus gdip_format_string(GpGraphics *graphics,
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gdip_format_string_callback callback, void *user_data)
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{
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WCHAR* stringdup;
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INT sum = 0, height = 0, fit, fitcpy, i, j, lret, nwidth,
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int sum = 0, height = 0, fit, fitcpy, i, j, lret, nwidth,
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nheight, lineend, lineno = 0;
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RectF bounds;
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StringAlignment halign;
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@ -3508,8 +3508,8 @@ static GpStatus gdip_format_string(GpGraphics *graphics,
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nwidth = roundr(rect->Width);
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nheight = roundr(rect->Height);
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if (nwidth == 0) nwidth = INT_MAX;
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if (nheight == 0) nheight = INT_MAX;
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if (nwidth == 0 || rect->Width >= INT_MAX) nwidth = INT_MAX;
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if (nheight == 0 || rect->Height >= INT_MAX) nheight = INT_MAX;
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for(i = 0, j = 0; i < length; i++){
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/* FIXME: This makes the indexes passed to callback inaccurate. */
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