gdiplus: Handle large input rect in GdipMeasureCharacterRanges.

[Vincent Povirk]

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From fe884bf7cea1bbd6336c4fd50c8532a73b5b5a9b Mon Sep 17 00:00:00 2001
From: Vincent Povirk <vincent at codeweavers.com>
Date: Mon, 23 Mar 2015 15:12:06 -0500
Subject: [PATCH] gdiplus: Handle large input rect in
 GdipMeasureCharacterRanges.

---
 dlls/gdiplus/graphics.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 34022cb..ae530a9 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -4739,6 +4739,9 @@ GpStatus WINGDIPAPI GdipMeasureCharacterRanges(GpGraphics* graphics,
     scaled_rect.Width = layoutRect->Width * args.rel_width;
     scaled_rect.Height = layoutRect->Height * args.rel_height;
 
+    if (scaled_rect.Width >= 1 << 23) scaled_rect.Width = 1 << 23;
+    if (scaled_rect.Height >= 1 << 23) scaled_rect.Height = 1 << 23;
+
     get_font_hfont(graphics, font, stringFormat, &gdifont, NULL);
     oldfont = SelectObject(hdc, gdifont);
 
-- 
2.1.0