Currently we are storing the default driver lists as a macro, and splitting them into RString vectors every time they are needed. This commit changes the macros in `arch_default.h` into vectors of RStrings, so that they do not need to be split each time.
I have updated all references where the default driver lists are being called so that the vector is used directly.
A new function is added to RageUtil to make a compatible vector of RStrings from user input which may be separated with a comma.
RageSoundDriver was refactored to check user input in Preferences.ini against the default driver list, and in case of incorrect spelling or failure, provides a detailed error message (including a list of valid options) in logs so the user can resolve the problem.
`fix_bogus_sound_driver_pref` is no longer needed, since we are now telling the user what their valid options are if the user provides an incorrect entry for the `SoundDrivers` preference, instead of silently attempting to guess what the user wanted. Since I think it's rare that someone wants to specify a driver to begin with, we should let them know their exact options if they put something wrong here, instead of silently failing or using an unwanted driver.
I tested this on Windows by specifying `DirectSound-sw` in Preferences.ini, and it worked as expected. I also tried putting an unusable value in, and got the error in logs letting me know what my valid driver options were. Of course, input and movies all work as expected too.
- Use fast data types where possible so the compiler can optimize for speed based on platform
- for example, 128 bits might be fastest on ARM
- good future-proofing
- Refactor GetTimeSinceStart() to be a bit faster
- multiplication is much faster than division
- Implement a RageTimer method to get the seconds value as a plain int, for the places which cast the seconds value to an int
- Changing from GetTimeSinceStartFast() to GetTimeSinceStart() where accuracy is important
- Changing from GetTimeSinceStart() to GetUsecsSinceStart() for timestamp diffs
- Adjust RageThreads to accomodate an unsigned timestamp value
- a constant for the maximum value of `uint_fast64_t` replaces `-1` to accommodate the change from signed to unsigned for the `locked_at` variable
- i have separate constants for `std::numeric_limits<std::uint_fast64_t>::max()` and `static_cast<std::uint_fast64_t>(-1)`, so the reader understands -1 represents an error code, though they evaluate to the same value, so i could remove one of the two
- Add two methods to calculate the MMSSMsMs / MMSSMsMsMs time value from usecs directly instead of inferring it from a seconds value, in RageUtil
- Use a similar counter/modulo based method for WheelNotifyIcon, similar to what i did for text_glow in NoteField in 2eeee03
- Make `g_iStartTime` static const for safety
Rename two timer functions:
GetUsecsSinceStart -> GetTimeSinceStartMicroseconds
GetMicrosecondsSinceStart -> GetSystemTimeAsMicroseconds
Remove std prefix from uint_fast64_t
Increasing security and efficiency of math in order to prevent potential errors from occurring.
1. L is a macro made to equal 8. It's only used in conjunction with other `int`'s, so it's safe to make into a constant called FILTER_LENGTH.
2. Define a very tiny number to avoid a potential mistake in ApplyKaiserWindow.
3. Define constants for BesselI0, making the functions easier to read but also improve security of the math.
4. Make some variables const and prevent redundant calculations or variable creations in ApplyKaiserWindow and GenerateSincLowPassFilter.
5. Use `double` interally in GenerateSincLowPassFilter
GitHub mistakenly thinks this is the project license. the copyright and licensing details for libmad already exists in extern/libmad, so it's not needed to keep it here as well.
For the purposes of type safety, allowing the compiler to further optimize, and preventing possible name collisions, I've converted these 13 macros to constexpr's.
1) Remove Win SDK headers directory (src/archutils/Win32/ddk)
2) Update files including Win SDK headers to instead use the version installed by Visual Studio Installer
3) Update INSTALL.md
Note: this commit does not enforce using a specific version of the Windows SDK, but does everything needed to use the locally installed Windows SDK instead of files distributed with the source code to enforce using a particular version.
Users attempting to build the beta branch with GCC 12, 13 or 14 have a failure here due to the std::uint_8 data type.
The reason I changed it to an unsigned instead of including <cstdint> is because behavior on versions of GCC 12 and up were not consistent. I changed it to an unsigned because all versions of GCC were happy with that.
bApproximate is left over from long ago when the method to retrieve the system time might be 32-bit only or need correction. This is no longer needed, and already commented out of several sections of the sm5.1 base code. It can't be removed all at once just by deleting every instance of bApproximate, because it often refers to pointers that go elsewhere. so, this is the first part of a multi-stage removal process.
Other changes: remove samplerate() macro from RageSound, change some implicit casts to explicit.
Implements a static boolean to track the CheckGameLoopTimerSkips preference, so that it isn't calling PREFSMAN via CheckGameLoopTimerSkips in a tight loop. Since this setting is rarely used, and isn't expected to be changed while the game is open, it doesn't need to be continuously checked.
Reduce the input device check from every 500 frames to every 255 frames by way of replacing the modulo 500 with a wrapping uint8_t. A bit faster reaction during device plug-in is nice, and using a simple pre-increment instead of doing a modulo is a little more efficient.
This commit removes old translations from Translations.xml which are probably unneeded and unwanted, but also improves commentary so people will be better equipped to write their own translations.
Thanks @bkirz for pointing this out 👍
Attempt to fix the failing CI for the short term.
The existing workflow file still works on my personal fork, but for some reason doesn't on the main project.
Both come out to the same amount of target latency (as does 32x256, etc) however RageSoundDriver.h defines samples_per_block as 512, so this aims to have chunksize_frames equal 512.
It also defines a constant to define the quantity of buffers so it's not hardcoded in various places and puts the variables in an anonymous namespace.
The warning inside the loop makes the log too messy and is too much of a performance hit on very low end hardware.
I'm changing it to remove the mid-loop logging and only return a logged warning on a failure.
gluGetString, gluBuild2DMipmaps, and gluErrorString are all functions from the GLU library, which is not part of OpenGL.
This lets the game run without libGLU1 (or whatever it's called on a given distro).
Update README.md
From top to bottom,
- Fix incorrect gcc implementation in `SetThreadName`
- Static Cast in `StartThread`
- Fix `MutexImpl_Win32::Lock()`
- Remove unnecessary pre-winXP methods in PortableSignalObjectAndWait()
- Static Cast in `EventImpl_Win32::Wait`
Encapsulate actor resize functionality.
Significant performance improvement on the `UpdateAnimationState` function which was bottlenecking many operations.
See ITGmania PR #253 for more information.
1) Set a buffer of 2MB instead of setting the buffer to nullptr and depend on it being grown by assets being loaded at the game launch
2) Update some C style code to C++ style
3) Improve Extend feature to support handling a larger number of samples, and error handling in case of a memory allocation failure
Nothing major here - updating C style casts, moving repeated function calls into variables, changing lrint's...
**RageSound.cpp**
- Initialize m_pSource to nullptr in the member initializer list, rather than in the body of the constructor
- Define an undefined variable `iSourceFrame`
- Change a `lrint` to a `static_cast<int>+0.5`
- Implement missing error handling in `SetStopModeFromString` with a log message
**RageSoundManager**
- Combined the iterator increment and the erase operation for `Update` into one line to prevent needing to create the `next` variable, since GameLoop calls this method frequently
**RageSoundReader**
- This method is called from RageSound just after making sure iFrames isn't equal to 0, so it's not needed for RageSoundReader to do it again.
- We will never fail to read a file 100 times. If we do, it's because of I/O errors, so make that more clear.
This resolves the following issues with DWI format simfiles:
- DWI files containing valid charts may fail to load and appear to have 0 or 1 notes
- DWI files opened in the editor would not save the original contents of the chart into a new file
I moved the logic for getting the new screen name into a separate function GetNewScreenName(), for the sake of containing the logic for getting the new screen name in one place.
I tried some different optimizations for GetNewScreenName(), however none of them were much of a performance savings over the original code, if any, when viewed in a disassembler, so I ultimately chose to keep the original code.
This is what really causes problems when alt-tabbing in and out of the game, with OBS, etc.
ITGmania uses less than 5% CPU usage on my 10 year old CPU. I can leave ITGmania running in the background with assist tick going and no notes are getting lost or stuttering.
It's not really worth shifting all the threads to a lower priority in the name of saving resources, considering how few resources the game consumes.
A problem with using std::accumulate to calculate the mean is that small numbers get rounded down to zero when dealing with floating point numbers. This is solved by implementing the Kahan summation algorithm (https://en.wikipedia.org/wiki/Kahan_summation_algorithm).
The content of src/archutils/Darwin/VectorHelper.cpp is very old, these are AltiVec and SSE2 instructions. This is only actually used in RageSoundMixBuffer.cpp. This level of micro-optimization is not needed since platforms this old are not supported by ITGm.
NTpad is a driver for Windows 2000/XP which enables the use of a controller via the parallel port. This is not needed anymore and is just causing lag by constantly scanning the list of input devices on Windows.
Summary of changes
1) Fix issues in RageTimer and RageSoundPosMap
2) Calculate seconds from microseconds more accurately
3) Replace lrint(x) with static_cast<int>(x+0.5) for better performance
4) Replace C style casting with C++ style casting
5) Make important values 64-bit wide
6) Update RageUtil.cpp (timer conversion RStrings had some math which needed to be fixed after fixing RageTimer's math)
7) Ensure floating point math is done as floating point
8) Improve code commentary all around
9) Improve clarity and efficiency of RageSoundPosMap "return closest position" error logging
Enforcing HIGH_PRIORITY_CLASS is best for Win10+ where Windows Update can interrupt the game and it also prevents streaming apps (OBS/Discord) from causing stutter by taking rendering priority away from ITGMania.
Update ArchHooks_Win32.cpp
Update ArchHooks_Win32Static.cpp
This code provided a 7x accuracy improvement over timeGetTime(). (0.2ms vs 1.4ms std dev*3)
Rename variables to fit with existing naming mechanism
sukibaby