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-rw-r--r--core/fxge/ge/cfx_cliprgn.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/core/fxge/ge/cfx_cliprgn.cpp b/core/fxge/ge/cfx_cliprgn.cpp
index 5193ce2944..037e658de9 100644
--- a/core/fxge/ge/cfx_cliprgn.cpp
+++ b/core/fxge/ge/cfx_cliprgn.cpp
@@ -50,13 +50,14 @@ void CFX_ClipRgn::IntersectMaskRect(FX_RECT rect,
m_Mask = pMask;
return;
}
+ CFX_RetainPtr<CFX_DIBitmap> pOldMask(pMask);
m_Mask = pdfium::MakeRetain<CFX_DIBitmap>();
m_Mask->Create(m_Box.Width(), m_Box.Height(), FXDIB_8bppMask);
for (int row = m_Box.top; row < m_Box.bottom; row++) {
uint8_t* dest_scan =
m_Mask->GetBuffer() + m_Mask->GetPitch() * (row - m_Box.top);
uint8_t* src_scan =
- pMask->GetBuffer() + pMask->GetPitch() * (row - mask_rect.top);
+ pOldMask->GetBuffer() + pOldMask->GetPitch() * (row - mask_rect.top);
for (int col = m_Box.left; col < m_Box.right; col++)
dest_scan[col - m_Box.left] = src_scan[col - mask_rect.left];
}