https://git.reactos.org/?p=reactos.git;a=commitdiff;h=068687e0fde0f417ed8a81c44a0009de721da68a
commit 068687e0fde0f417ed8a81c44a0009de721da68a Author: Jérôme Gardou <[email protected]> AuthorDate: Wed Mar 31 09:59:44 2021 +0200 Commit: Jérôme Gardou <[email protected]> CommitDate: Wed Mar 31 16:39:57 2021 +0200 [WIN32K] Fix off-by-one errors Spotted by Doug Lyons CORE-17520 --- win32ss/gdi/dib/dib1bpp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/win32ss/gdi/dib/dib1bpp.c b/win32ss/gdi/dib/dib1bpp.c index 6a90282808d..c1b33ad4182 100644 --- a/win32ss/gdi/dib/dib1bpp.c +++ b/win32ss/gdi/dib/dib1bpp.c @@ -78,7 +78,7 @@ DIB_1BPP_BitBltSrcCopy_From1BPP ( { LONG yDst = DestRect->top + Height; LONG ySrc = bTopToBottom ? - SourcePoint->y + RECTL_lGetHeight(DestRect) - Height + SourcePoint->y + RECTL_lGetHeight(DestRect) - Height - 1 : SourcePoint->y + Height; LONG Width = RECTL_lGetWidth(DestRect); @@ -86,7 +86,7 @@ DIB_1BPP_BitBltSrcCopy_From1BPP ( { LONG xDst = DestRect->left + Width; LONG xSrc = bLeftToRight ? - SourcePoint->x + RECTL_lGetWidth(DestRect) - Width + SourcePoint->x + RECTL_lGetWidth(DestRect) - Width - 1 : SourcePoint->x + Width; ULONG PixelPut = DIB_1BPP_GetPixel(SourceSurf, xSrc, ySrc); if (XorBit)
