Timo Kreuzer
50c9dab6c9
[WIN32K] Fix wrong calculation in DIB_32BPP_BitBltSrcCopy
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Using an unsigned integer will cause the calculations to be unsigned, which on x64 leads to wrong results, when adding it to a pointer.
2021-05-27 15:53:24 +02:00
Jérôme Gardou
40f7e86347
[WIN32K] Fix brain-fail of mine
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Copying e.g. (2;2);(6;6) to (0;0);(4;4) also needs to have an intermediate buffer.
2021-03-31 16:55:30 +02:00
Jérôme Gardou
30886e74f2
[WIN32K] Fix case when buffers overlap in 1BPP -> 1BPP DIB copy
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Logic by Doug Lyons
CORE-17520
2021-03-31 16:39:57 +02:00
Jérôme Gardou
068687e0fd
[WIN32K] Fix off-by-one errors
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Spotted by Doug Lyons
CORE-17520
2021-03-31 16:39:57 +02:00
Jérôme Gardou
0c13ff2a4b
[WIN32K] Rewrite DIB1BPP -> DIB1BPP copy
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Simpler is sometimes better.
Fixes some crashes & memory corruptions happening because of all those broken loops.
2021-03-22 22:40:33 +01:00
Doug Lyons
ce7836c6d3
[WIN32K] Add StretchBlt function ability to flip images ( #3458 )
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Modify dib\dibxxbpp.c programs to understand flipped images. See Videos at CORE-16642
1. Mirroring Horizontally works.
2. Mirroring Vertically works.
3. Rotation 180° works.
CORE-16642, CORE-14408, CORE-16634
2021-02-21 08:28:36 +09:00
Katayama Hirofumi MZ
31d616ff73
[WIN32SS][GDI] Assume pso->sizlBitmap.cy positiveness ( #1743 )
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We assume pso->sizlBitmap.cy is positive. CORE-15995
Because pso->sizlBitmap.cy is certificated as a positive value after initialization in SURFACE_AllocSurface, so we can safely omit abs and labs (absolute) function calls for it.
2019-07-21 21:39:05 +09:00
Colin Finck
c2c66aff7d
Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
2017-10-03 07:45:34 +00:00
