SPNGT
SPNGT is a test suite and benchmarking utility for libspng, libpng, stb_image and lodepng.
Benchmark results are at available at https://libspng.org.
Dependencies
- Git LFS for cloning benchmark images
- meson
- zlib
- lodepng and stb_image are included in the project
The following are automatically downloaded as meson subprojects:
- benchmark images
- libspng
- libpng (depending on configuration)
Switch between building libpng from source and the system-provided libpng with meson -Dlibpng_variant=download/system.
Creating a build
meson --buildtype=release build
cd build
Running the benchmark
ninja
ninja benchmark
cat meson-logs/benchmarklog.txt
Compile with Profile-guided optimization (PGO)
meson build
cd build
meson configure --buildtype=release -Db_pgo=generate
ninja benchmark
meson configure -Db_pgo=use
ninja benchmark
cat meson-logs/benchmarklog.txt
Cross-build for Android / ARM
Compiling for Android requires the NDK.
Edit the path for the binaries in cross_arm.txt, these must be absolute paths.
Specify the the cross file when creating the cross build
meson --cross-file=cross_arm.txt --buildtype=release arm_build