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79 lines
3.8 KiB
Plaintext
79 lines
3.8 KiB
Plaintext
VGA BUG: Color palette error, last color of the palette, usually if it's white,
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instead usually comes out black.
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- Surprise! productions, The Good, The Bad, & The Ugly
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- Happens at the demo part with the gargoyle demon art thing that warps
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vertially: the failure appears as black splotches on his wings that SHOULD
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be white.
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NOTE: I'm not certain but I wonder if it has anything to do with the
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previous demo effect and possible palette animation involved for
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the "fading" effect as it renders. If I'm right, then whether or
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not the error happens depends entirely on when the previous demo
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effect ended and the state the color palette was left in.
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================================================================================
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THE FOLLOWING BUGS ARE FIXED!
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================================================================================
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VGA BUG: Exotic VRAM clearing tricks do not work, leaving "garbage" on the screen
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- Abaddon: Cycling!
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- Failure to clear the screen is visible when the VGA split-screen pans upward.
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The "loading" graphic and other garbage contents are visible below the
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animated VU meters where on real hardware that part of the screen would be
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blank.
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NOTE: This is still a problem with machine=svga_s3, but fixable by setting
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machine=svga_et4000 instead. I'm not sure at this time whether the
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demo has the same problems on real hardware or not.
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- Surprise! productions, The Good, The Bad, & The Ugly
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- There are two parts with rotating wireframe meshes that make use of VGA
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palette trickry to create "motion blur". Failure to clear the screen results
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in a wireframe mesh with a border of garbage pixels that flicker.
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- Optic Nerve (demo)
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- At the start of each demo part, when displaying the title of that part, the
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demo fails to clear the screen. Result: demo title with contents of the
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previous screen or title screen around it, garbled due to palette mismatch.
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NOTE: This is still an issue with machine=svga_s3, but you can
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eliminate the problem by setting machine=svga_et4000 or running
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the demo from an MS-DOS 5.0 or 6.0 bootdisk. MS-DOS 6.22 may cause
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stability issues. Windows 95/98 DOS mode is certain to cause the
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demo to crash.
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- Impact Studios: Legend
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- Failure to clear the screen causes 3D dot fields to overdraw into an orange
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flickering ball.
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VGA BUG: Failure to save and restore VGA text screen contents
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- Microsoft Windows 95 boot logo
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- Windows 95 is able to show the boot logo, but when restoring the VGA text
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console, the contents are all messed up. Why?
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- Microsoft Windows 3.0/3.1/95/98
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- Running the DOS prompt in a window works, until you move the mouse cursor
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over or near the DOS window. If you go back to fullscreen, the extended
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character set is missing. If you go back and forth 2 or more times, the
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character font is missing entirely.
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- If any DOS program writes to the screen the contents appear as garbage at
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the top of the Windows desktop. Whatever normally prevents the DOS program
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from affecting the screen by Windows is not triggering in DOSBox and it
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may be the source of corrupted VGA states.
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- Weird crashes when you move the mouse cursor over the window do NOT happen
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in Windows 3.11 Windows for Workgroups if 32-bit disk and file access is
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enabled.
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VGA BUG: Switching to the DOSBox keymapper, then back, results in failure to redraw
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emulated VGA output.
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VGA BUG: Active display area cuts off right margin for Do Whacka Do
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- Do Whacka Do works perfectly except that the rightmost 8-10 pixels are cut off,
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which makes it a bit difficult to read the scroller at the bottom of the screen.
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