We have lots and lots of -Wimplicit-fallthrough warnings, and I
don't know if it's worth fixing them or not. But if we want to,
this is how it can be done.
Adding a hook into kPlayDuck to skip the intro video feels kind of
crappy, but it seemed simpler, consistent with the other hooks for
launch loading, and therefore preferable versus hot-patching the
script or messing with PC in the VM or something.
This fixes buggy PQ4 system script code and makes entering user
and password on the police computer not trigger a signature mismatch
anymore.
Script code was fixed by Sierra in PQ4 CD.
Non-use of these kernel calls was assumed by reviewing script
disassembly by SV, but it turns out that SV was not picking up
script patches correctly in SCI3 games, so this data is no longer
considered reliable.
Phant2 creates save game names that append "<PROTECTED>" at the
end of the game name, with an assumption that the game name is
always exactly 36 characters long. This seems to be OK with other
games too (tested GK1, SQ6, and Torin).
Since these later SCI32 games weren't really designed to work with
subtitles-only message mode, if this doesn't work consistently or
breaks the games a lot in other places, the subtitles-only message
type could possibly be implemented in some other way, like by
messing with the game's speech volume global instead.
These objects should have been initialized only during the first
pass. Double-initialization does not cause any visible problem
problem during normal operation (mostly it just causes memory
waste by making Object::_baseVars/_baseMethod double up their
data), but could have silently allowed games to receive bogus data
for an out-of-bounds property or method index, instead of raising
an error.
1. In SCI0/1, selectors and offsets in the method block are
stored contiguously (all selectors, then all offsets), with a
null separator between the two runs. All the later versions of
SCI instead interleave selectors & offsets. Since these values
are already being copied into a new array anyway, code for
reading method selectors/offsets is now simplified by
interleaving this data when it is written into _baseMethod
for SCI0/1, so the same equation for retrieving method
selectors/offsets can be used across all SCI versions.
2. In SCI1.1-2.1 branch, the method count was being copied into
the first entry of the array, which meant that SCI1.1-2.1 had
extra code for dealing with the fact that the first entry was
not an entry. This has been fixed, and the extra code removed.
3. Data was being overread into _baseMethod in all games SCI0-2.1.
(SCI0/1 had an extra magic value of 2, and SCI1.1-2.1 had an
extra magic value of 3). Reviewing history, it's not clear why
this happened, other than that it appears to have been
introduced at 7b0760f1bc. My best
guess is that this was a confusion between byte count and record
count, where the intent was to read an extra 2 bytes for the
null separator in SCI0/1, but it actually read 2 records
instead. (I do not have a guess on why SCI1.1 ended up with a
3.) This overreading has been removed.
1. Added a new game option for linear interpolation when scaling
overlay-mode video in ScummVM builds with USE_RGB_COLOR;
2. Implemented SCI2.1-variant of the VMD player renderer (fixes
Trac#9857), which bypasses the engine's normal rendering
pipeline;
3. Improved accuracy of the SCI3-variant of the VMD player by
writing HunkPalettes into the VMD's CelObjMem instead of
submitting palettes directly to GfxPalette32.
1. Added a new game option for linear interpolation when scaling
video in ScummVM builds with USE_RGB_COLOR;
2. 8bpp videos that put black in a palette index other than 0
(KQ7) should now always render correctly without the earlier
game-specific workarounds which did not work very well;
3. Data from game scripts regarding video size and position are
now ignored, since games always just try to show videos in the
middle of the screen, but frequently get this a little bit
wrong, causing either bad aspect ratios or off-center videos;
4. Builds without USE_RGB_COLOR support will not crash when
attempting to play >8bpp AVIs, like those from KQ7 2.00b.
Fixes Trac#9843, Trac#9762.
Torbjörn Andersson
Martin Kiewitz
Colin Snover
Willem Jan Palenstijn