reg32_t was a transitive solution, before reg_t's were
adapted to use 32-bit addresses internally, and before
support for SCI3 was added. It was introduced as another
way to handle large script offsets in SCI3, and was only
used for the program counter (PC). It's no longer
needed, as we now support SCI3 script offsets using
reg_t's, so we can use make_reg32 in all cases where
we need to access offsets over 64KB
This ensures the detected speed will end up at the highest level. This
improves the detail in Yorick's room (96), and slightly changes the
timing in other rooms.
Fixes bug #10296.
The original script patch had the correct literal value but the
wrong selector name in the comment for the literal value, so when
it was converted to use a selector lookup in
c5dce17b1f, the patch broke because
the wrong selector name was used.
Fixes Trac#10392. Closes gh-1107.
Passing overlapping buffers to C standard library memcpy, strcpy,
and strncpy is undefined behavior. In SSCI these operations would
perform a forward copy, and most stdlib implementations do the
same, but at least newer Linux glibc on x86 copies bytes in
reverse, so just using the standard library on this platform
results in broken output.
Because SSCI used a blind forward copy instead of memmove for
overlapping copy operations, this patch implements an explicit
forward copy to ensure that overlapping copies continue to operate
the same as in SSCI.
This fixes the Island of Dr. Brain v1.1 flamingo puzzle
(script 185, flamingos::init, localCall 4c3) on platforms that do
not perform forward copy in memcpy/strcpy/strncpy.
Thanks to @moralrecordings for research on this bug and an initial
patch using memmove.
Closes gh-1034.
This code was assuming that retval points to the start of the next
instruction, which is only true if the current parameter is the last
one. This fixes op_call printing.
When quitting the game at the main menu and hitting no
or quitting the game while playing the cursor color
over the buttons will be tan the first time rather
than red. This fix makes it so it will be red.
This was done by removing a check in HotSpot::doit()
which checks the global193 value. Removing this check
fixes the problem.
Fixes Trac#9977.
Thanks snover and wjp for your help.
This flag is removed for a few reasons:
* Engines universally set this flag to true for widths > 320,
which made it redundant everywhere;
* This flag functioned primarily as a "force 1x scaler" flag,
since its behaviour was almost completely undocumented and users
would need to figure out that they'd need an explicit non-default
scaler set to get a scaler to operate at widths > 320;
* (Most importantly) engines should not be in the business of
deciding how the backend may choose to render its virtual screen.
The choice of rendering behaviour belongs to the user, and the
backend, in that order.
A nearby future commit restores the default1x scaler behaviour in
the SDL backend code for the moment, but in the future it is my
hope that there will be a better configuration UI to allow users
to specify how they want scaling to work for high resolutions.
This reverts commit ae8e4fa8e9.
This change is wrong in any case. It should be specific to temp
14+15 at the very least. I also did not get an answer on what
is actually happening internally. That's not how we should
add workarounds. My review was also still pending.
During the wordsearch puzzle (room 320 click left door) the
game will crash because of an uninitalized read of temp
variables in word::dispatchEvent (which gets called a lot),
if the player clicks the same letter or different letters
aggressively or holds down the enter key.
Fixes Trac#9783.
This removes the unnecessary Buffer subclass and stops most places
where the output buffer was being interrogated about dimensions
instead of GfxFrameout.
* Rewrap comments to 80 columns
* Clarify comments where possible
* Use smart pointers where appropriate
* Change view/pic flags detection to always use word-size
(byte-size check for flag 0x80 was a compiler optimisation)
Filippos Karapetis
Eugene Sandulenko
David Fioramonti
Adrian Frühwirth
Willem Jan Palenstijn
Colin Snover
Martin Kiewitz