`Color::FromHSV` didn't match the Java `Color.fromHSV` in some saturated
edge cases, introducing an off-by-one error when the HSV color should
correspond complete saturation of one or two of the primary colors.
Example:
- Java: `Color.fromHSV(0, 255, 255) -> (255, 0, 0)`
- C++: `Color::FromHSV(0, 255, 255) -> (255, 1, 1)`
This also means the following methods are also transitively affected:
- `AddressableLED::LEDData::SetHSV`
- `LEDPattern::Rainbow`
This off-by-one error is introduced by a rounding error from the chroma
calculation, which was dividing by 256 rather than the appropriate
maximum value of 255 like in Java:
7ca35e5678/wpilibj/src/main/java/edu/wpi/first/wpilibj/util/Color.java (L176-L177)
Also port appropriate tests from Java to C++ to catch this bug.
I found this bug when I tried to port `AddressableLEDBuffer` to RobotPy.
Codex found the root cause :)
After replacing the remaining include guards with `#pragma once`, I was
able to merge all the wpiformat configs into one file in the repo root.
This should make the config easier to reason about and maintain in the
future.
clang-format 21 made some formatting changes. Since wpiformat's stdlib
task was removed, I removed NOLINT comments for it and removed some
std:: prefixes it added to comments.
libprotobuf is a very annoying dependency to deal with, and with the switch to nanopb for generated C++ code, libprotobuf is only used for dynamic decode in the GUI apps. libprotobuf has been swapped out with upb, a much smaller C-based library that supports reflection and can therefore do dynamic decode. This means we can remove the libprotobuf dependency and stop dealing with build issues because of it.
Currently the major DataLog backend API (reading and writing) is split between wpiutil and glass. In the interest of allowing code that wants to use these APIs to not need to link to glass and declutter wpiutil, all of those APIs are moved to a new library named "datalog".
Signed-off-by: Jade Turner <spacey-sooty@proton.me>
Co-authored-by: Jade Turner <spacey-sooty@proton.me>
Co-authored-by: Gold856 <117957790+Gold856@users.noreply.github.com>
