To make SoftMMU::find_region() O(1), this patch invests 3MiB into a
lookup table where we track each possible page base address and map
them to the SoftMMU::Region corresponding to that address.
This is another large improvement to general emulation performance. :^)
We don't want the next_address pointer losing its alignment somehow.
This whole thing should be replaced at some point, since UE hosted
programs won't be able to run forever with this allocation strategy.
This moves file extension to icon mappings from compile time macros to an
INI config file (/etc/FileIconProvider.ini), so file icons can easily be
customized and extended :^)
I also switched the format from a static file extension (".foo") to
glob-like patterns ("*.foo", using StringUtils::matches()), which allows
us to assign icons to specific exactly matching file names, like many
IDEs do - e.g. "CMakeLists.txt" or ".prettierrc".
m32int is a 32-bit integer stored in memory, and should not be mistaken
for a floating point number. :^)
Also add missing handling of 64-bit FPU register operands to some of
the RM64 instructions.
There are some destruction order races that can cause hangs while
shutting down UE. Since there's no particular value right now in
destroying the Emulator object properly, just avoid destruction and
add a FIXME about looking into it later.
Instead of doing an O(n) scan over all the mallocations whenever we're
doing a read/write audit, UE now keeps track of ChunkedBlocks and their
chunks. Both the block lookup and the chunk lookup is O(1).
We know what ChunkedBlocks look like via mallocdefs.h from LibC.
Note that the old linear scan is still in use for big mallocations,
but the vast majority of mallocations are chunked, so this helps a lot.
This makes malloc auditing significantly faster! :^)
We won't be receiving full PS/2 mouse packets when the VMWareBackdoor
absolute mouse mode is enabled. So, read just one byte every time
and retrieve the latest mouse packet from VMWareBackdoor immediately.
Fixes#4086
This gives the compiler enough information to optimize index validation
when using range-for to iterate over a Vector, drastically reducing the
cost of such loops.
These instructions now operate on the specified FPU stack entry instead
of always using ST(0) and ST(1).
FUCOMI and FUCOMIP also handle NaN values slightly better.
When we hit the last token, make the saved pointer point to the null
terminator instead of to the next token. This ensures that the next
call to strtok_r() returns null as expected.
Found by running GCC in UE. :^)
By using Gfx::Bitmap::is_path_a_supported_image_format() we can
automatically provide the image icon for all supported image formats,
without keeping a second list of image file extensions.
Bitmap::is_path_a_supported_image_format() and Bitmap::load_from_file()
now check the file extension with CaseSensitivity::CaseInsensitive.
This fixes a couple of inconsistencies, for example would
FileSystemModel::icon_for() recognize image files uppercase extensions
but couldn't create thumbnails for them (any attempt to create a bitmap
from such files would fail).
