Jiajin Cui : gdiplus: Fix crash if failed to create bitmap.
Alexandre Julliard
julliard at winehq.org
Mon Jul 20 15:30:09 CDT 2020
Module: wine
Branch: master
Commit: f992bc77c87889c37cbd80aced707e6d1a537c8c
URL: https://source.winehq.org/git/wine.git/?a=commit;h=f992bc77c87889c37cbd80aced707e6d1a537c8c
Author: Jiajin Cui <cuijiajin at uniontech.com>
Date: Fri Jul 17 17:34:09 2020 +0800
gdiplus: Fix crash if failed to create bitmap.
Signed-off-by: Jiajin Cui <cuijiajin at uniontech.com>
Signed-off-by: Esme Povirk <esme at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/gdiplus/graphics.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c
index 5194719fd6..1307bdc1ef 100644
--- a/dlls/gdiplus/graphics.c
+++ b/dlls/gdiplus/graphics.c
@@ -459,6 +459,9 @@ static GpStatus alpha_blend_hdc_pixels(GpGraphics *graphics, INT dst_x, INT dst_
hbitmap = CreateDIBSection(hdc, (BITMAPINFO*)&bih, DIB_RGB_COLORS,
(void**)&temp_bits, NULL, 0);
+ if(!hbitmap || !temp_bits)
+ goto done;
+
if ((GetDeviceCaps(graphics->hdc, TECHNOLOGY) == DT_RASPRINTER &&
GetDeviceCaps(graphics->hdc, SHADEBLENDCAPS) == SB_NONE) ||
fmt & PixelFormatPAlpha)
@@ -470,9 +473,12 @@ static GpStatus alpha_blend_hdc_pixels(GpGraphics *graphics, INT dst_x, INT dst_
SelectObject(hdc, hbitmap);
gdi_alpha_blend(graphics, dst_x, dst_y, src_width, src_height,
hdc, 0, 0, src_width, src_height);
- DeleteDC(hdc);
+
DeleteObject(hbitmap);
+done:
+ DeleteDC(hdc);
+
return Ok;
}
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