DSP: Eliminate most global state #9348
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iwubcode
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Still need another pass but this looks really good! |
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An unfortunately large single commit that deglobalizes the DSP code.
(which I'm very sorry about).
This would have otherwise been extremely difficult to separate due to
extensive use of the globals in very coupling ways that would result in
more scaffolding to work around than is worth it.
Aside from the video code, I believe only the DSP code is the hairiest
to deal with in terms of globals, so I guess it's best to get this dealt
with right off the bat.
A summary of what this commit does:
- Turns the DSPInterpreter into its own class
This is the most involved portion of this change.
The bulk of the changes are turning non-member functions into member
functions that would be situated into the Interpreter class.
- Eliminates all usages to globals within DSPCore.
This generally involves turning a lot of non-member functions into
member functions that are either situated within SDSP or DSPCore.
- Discards DSPDebugInterface (it wasn't hooked up to anything,
and for the sake of eliminating global state, I'd rather get rid of
it than think up ways for this class to be integrated with
everything else.
- Readjusts the DSP JIT to handle calling out to member functions.
In most cases, this just means wrapping respective member function
calles into thunk functions.
Surprisingly, this doesn't even make use of the introduced System class.
It was possible all along to do this without it. We can house everything
within the DSPLLE class, which is quite nice =)
Localizes code that modifies m_dsp into the struct itself. This reduces the overal coupling between DSPCore and SDSP by reducing access to its member variables. This commit is only code movement and has no functional changes.
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Are there any more reviews to be done? Last review was 6 days ago |
BhaaLseN
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Dec 28, 2020
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Some files were difficult to review because of method reordering (which individually are just renames/relocations to match the new structure), so I kinda avoided this PR in the past days, but here we go. Code LGTM, untested. But I think we'll get some quick feedback once this is out in the wild in case something is really off.
leoetlino
approved these changes
Dec 28, 2020
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An unfortunately large single commit that deglobalizes the DSP code. (which I'm very sorry about).
This would have otherwise been extremely difficult to separate due to extensive use of the globals in very coupling ways that would result in more scaffolding to work around than is worth it.
Aside from the video code, I believe only the DSP code is the hairiest to deal with in terms of globals, so I guess it's best to get this dealt with right off the bat.
A summary of what this commit does:
Turns the DSPInterpreter into its own class
This is the most involved portion of this change. The bulk of the changes are turning non-member functions into member
functions that would be situated into the Interpreter class.
Eliminates all usages of globals within DSPCore.
This generally involves turning a lot of non-member functions into member functions that are either situated within SDSP or DSPCore.
Discards DSPDebugInterface (it wasn't hooked up to anything, and for the sake of eliminating global state, I'd rather get rid of it than think up ways for this class to be integrated with everything else.
This hasn't been used since the migration to Qt.
Readjusts the DSP JIT to handle calling out to member functions.
In most cases, this just means wrapping respective member function calls into thunk functions.
Surprisingly, this doesn't even make use of the introduced System class. It was possible all along to do this without it. We can house everything within the DSPLLE class, which is quite nice =)