They are currently broken and cause sound issues which are not present in other
backends:
* OpenAL plays music 2x too fast in Zelda UCode games with HLE
* Pulse backend uses a lot of CPU power and slows down emulation significantly
Both backends are currently being re-implemented in separate branches of
Dolphin, so this should be a temporary removal.
Workaround for issue 5864 disabling parts of an optimization in the JIT. This
is not the best solution to fix this issue, but at least it does not crash.
Only AX GC is merged so far, the new Wii AX development will be done in a
separate branch when I'll start working on it.
There are still a few AX GC bugs remaining, but overall a lot less games have
sound issues than before.
Thanks to everyone who helped test the development builds of this branch and
reported results on the forum thread.
Conflicts:
Source/Core/Core/Src/HW/DSPHLE/UCodes/UCode_AX.cpp
Tales of Symphonia and Skies of Arcadia Legends now have working musics with
DSPHLE. Some other games with the same symptoms (missing instruments) should
probably be fixed by that change too.
Most of the InvalidateICache calls are for a 32 bytes block: this is the
number of bytes invalidated by PowerPC dcb*/icb* instructions. Profiling
shows that a lot of CPU time is spent checking if there are any JIT blocks
covered by these 32 bytes (using std::map::lower_bound).
This patch adds a bitset containing the state of every 32 bytes block in
RAM (JIT cached/not JIT cached). Using that, a 32 bytes InvalidateICache
can check in the bitset if any JIT block might be invalidated. A bitset
check is a lot faster than an std::map::lower_bound operation, improving
performance of JitCache::InvalidateICache by more than 100%.
Some practical numbers:
* Xenoblade Chronicles (PAL)
56.04FPS -> 59.28FPS (+5.78%)
* The Last Story (PAL)
30.9FPS -> 32.83FPS (+6.25%)
* Super Mario Galaxy (PAL)
59.76FPS -> 62.46FPS (+4.52%)
This function still takes more time than it should - more optimization in
this area might be possible (specializing for 32 bytes blocks to avoid
useless memcpy, for example).
Very useful to compare performance between two builds, check the impact of
a configuration option, etc. FPS log is stored in User/Logs/fps.txt and is
reset each time you launch a game. Only enabled if you check the "Log FPS
to file" option in your graphics settings.
Could be improved a bit: currently logs only every 1s (so you can't really
see small variations), maybe output more infos to the fps.txt like
average/stddev (but Excel/Libreoffice/Google Docs can compute that easily
too).
These merges, while in theory improving emulation accuracy, cause issues
in other parts of the emulator based on invalid assumptions. memcard-delay
fixed some of these issues in the EXI memcard code, but several other
problems still exist and I don't have the time to debug that right now.
This was not needed for most games before because the external exception was
itself delayed. aram-dma-fixes changed that and made the external exception
happen a lot quicker, breaking games that relied on the memcard operations
delay.
Fixes issue 5583.
The GL EFB cache did not clamp correctly the coordinates when computing
the rectangle it needed to cache, leading to negative values being used
as indexes and often crashes.
Fixes issue 5510.
This branch fixes the ARAM DMA state tracking and makes external exceptions
timing more accurate.
Fixes WWE: Day of Reckoning 1 and 2 (issue 617)
Fixes Knockout Kings 2003 (issue 4904)
Fixes Spider-Man (GC)
MTMSR is executed.
This commits fixes issue 617. WWE Day of Reckoning 1 and 2 are now playable
with Dolphin.
The changes are not implemented for JitIL yet.
This branch reduces the number of useless state flushes in the video
emulation layer by checking whether a BP/XF change will have an effect
or not. Greatly reduces the number of GL calls per frame.
Thanks to degasus for his help!
When a game writes the same value that was already configured to a BP
register, Dolphin previously flushed the GPU pipeline and reconfigured
the internal video state (calling SetScissor/SetLineWidth/SetDepthMode).
Some of these useless writes still need to perform actions, for example
writes to the EFB copy trigger or the texture preload registers (which
need to reload the texture from memory).
This allows users to easily check whether their Wii dump is corrupted or not
using the Dolphin properties window. Right click on a game, Properties,
Filesystem tab, then right click on the game partition and select "Check
partition integrity".
This may have some false negatives due to the unused clusters heuristic (see
the comment in VolumeWiiCrypted.cpp). False positives are unlikely.
Pierre Bourdon
Pierre Bourdon