| commit | 2851c5a6c0872082e5eaa6e8f19bef5ecb244856 | [log] [tgz] |
|---|---|---|
| author | csmartdalton <hello@rive.app> | Tue Sep 06 20:08:05 2022 +0000 |
| committer | csmartdalton <hello@rive.app> | Tue Sep 06 20:08:05 2022 +0000 |
| tree | 5a3996c59389cec4563fc4948d9919d0c3b6f760 | |
| parent | c4c90718a715fb799b5bcf63e36c0d21b806ad20 [diff] |
Simpify RawPath::Iter
Implement Iter as an STL-style iterator that can be traversed very
efficiently using range-for:
for (auto [verb, pts] : rawPath) { ... }
Manually inject the implicit moveTos in RawPath (namely, the implicit
moveTo(0) at the beginning of a path, if the client didn't add one, and
a similar moveTo after close).
The implicit moveTos fix a bug in RawPath::bounds where we were not
accounting for the implicit moveTo(0), as well as a bug in
ContourMeasureIter::tryNext where we expected the first contour in a
path to begin with PathVerb::move.
With the implicit moveTos guaranteed to be in the raw path, the iterator
can be simplified to just peek back one point and give a contiguous array
beginning with p0 for each verb. In addition to generally simplifying
things, one more perk of having all the points contiguous is that it
also enables fast SIMD loads.
IterateRawPath bench result:
MacOS NEON: 8.71ms -> 5.02 (58%)
Windows SSE: 5.63ms -> 4.20 (75%)
BuildRawPath bench result:
MacOS NEON: 2.09ms -> 2.19 (105%)
Windows SSE: 2.18ms -> 2.27 (104%)
Diffs=
fdeff54d1 Simpify RawPath::Iter (#4157)
C++ runtime for Rive. Provides these runtime features:
We use premake5. The Rive dev team primarily works on MacOS. There is some work done by the community to also support Windows and Linux. PRs welcomed for specific platforms you wish to support! We encourage you to use premake as it's highly extensible and configurable for a variety of platforms.
In the rive-cpp directory, run build.sh to debug build and build.sh release for a release build.
If you've put the premake5 executable in the rive-cpp/build folder, you can run it with PATH=.:$PATH ./build.sh
Rive makes use of clang vector builtins, which are, as of 2022, still a work in progress. Please use clang and ensure you have the latest version.
cd skia/dependencies ./make_skia.sh // this will invoke get_skia.sh
To build viewer (plus you'll needed CMake installed)
./make_viewer_dependencies.sh
Uses the Catch2 testing framework.
cd dev ./test.sh
In the dev directory, run test.sh to compile and execute the tests.
(if you've installed premake5 in rive-cpp/build, you can run it with PATH=../../build:$PATH ./test.sh)
The tests live in rive/test. To add new tests, create a new xxx_test.cpp file here. The test harness will automatically pick up the new file.
There's a VSCode command provided to run tests from the Tasks: Run Task command palette.
rive-cpp uses clang-format, you can install it with brew on MacOS: brew install clang-format.
Note that if you‘re on MacOS you’ll want to install valgrind, which is somewhat complicated these days. This is the easiest solution (please PR a better one when it becomes available).
brew tap LouisBrunner/valgrind brew install --HEAD LouisBrunner/valgrind/valgrind
You can now run the all the tests through valgrind by running test.sh memory.
If you want to examine the generated assembly code per cpp file, install Disassembly Explorer in VSCode.
A disassemble task is provided to compile and preview the generated assembly. You can reach it via the Tasks: Run Task command palette or you can bind it to a shortcut by editing your VSCode keybindings.json:
[
{
"key": "cmd+d",
"command": "workbench.action.tasks.runTask",
"args": "disassemble"
}
]