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https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-07 13:30:09 -05:00
371b5a1836
Let the mixer functions accumulate the intermediate results into a larger size variable and then clamp to the final precission. This avoids distortions because of intermediate clamping. Although the access pattern of the reads are no longer sequential, the writes are sequential and we don't need to read intermediate values. Together with the avoided clamping this is probably faster overall. Add a unit test for the various cases.
97 lines
2.6 KiB
Meson
97 lines
2.6 KiB
Meson
audiomixer_sources = [
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'audiomixer.c',
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'mixer-dsp.c',
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'plugin.c'
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]
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simd_cargs = []
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simd_dependencies = []
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audiomixer_c = static_library('audiomixer_c',
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['mix-ops-c.c' ],
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c_args : ['-O3'],
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dependencies : [ spa_dep ],
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install : false
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)
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simd_dependencies += audiomixer_c
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if have_sse
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audiomixer_sse = static_library('audiomixer_sse',
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['mix-ops-sse.c' ],
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c_args : [sse_args, '-O3', '-DHAVE_SSE'],
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dependencies : [ spa_dep ],
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install : false
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)
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simd_cargs += ['-DHAVE_SSE']
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simd_dependencies += audiomixer_sse
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endif
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if have_sse2
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audiomixer_sse2 = static_library('audiomixer_sse2',
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['mix-ops-sse2.c' ],
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c_args : [sse2_args, '-O3', '-DHAVE_SSE2'],
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dependencies : [ spa_dep ],
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install : false
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)
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simd_cargs += ['-DHAVE_SSE2']
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simd_dependencies += audiomixer_sse2
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endif
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if have_avx and have_fma
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audiomixer_avx = static_library('audiomixer_avx',
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['mix-ops-avx.c'],
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c_args : [avx_args, fma_args, '-O3', '-DHAVE_AVX', '-DHAVE_FMA'],
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dependencies : [ spa_dep ],
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install : false
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)
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simd_cargs += ['-DHAVE_AVX', '-DHAVE_FMA']
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simd_dependencies += audiomixer_avx
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endif
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audiomixer_lib = static_library('audiomixer',
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['mix-ops.c' ],
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c_args : [ simd_cargs, '-O3'],
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link_with : simd_dependencies,
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include_directories : [configinc],
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dependencies : [ spa_dep ],
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install : false
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)
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audiomixer_dep = declare_dependency(link_with: audiomixer_lib)
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spa_audiomixer_lib = shared_library('spa-audiomixer',
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audiomixer_sources,
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c_args : simd_cargs,
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link_with : simd_dependencies,
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dependencies : [ spa_dep, mathlib, audiomixer_dep ],
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install : true,
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install_dir : spa_plugindir / 'audiomixer'
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)
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spa_audiomixer_dep = declare_dependency(link_with: spa_audiomixer_lib)
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test_apps = [
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'test-mix-ops',
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]
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foreach a : test_apps
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test(a,
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executable(a, a + '.c',
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dependencies : [ spa_dep, dl_lib, pthread_lib, mathlib, audiomixer_dep ],
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include_directories : [ configinc ],
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link_with : [ test_lib ],
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install_rpath : spa_plugindir / 'audiomixer',
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c_args : [ simd_cargs ],
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install : installed_tests_enabled,
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install_dir : installed_tests_execdir / 'audiomixer'),
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env : [
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'SPA_PLUGIN_DIR=@0@'.format(spa_dep.get_variable('plugindir')),
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])
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if installed_tests_enabled
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test_conf = configuration_data()
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test_conf.set('exec', installed_tests_execdir / 'audiomixer' / a)
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configure_file(
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input: installed_tests_template,
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output: a + '.test',
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install_dir: installed_tests_metadir / 'audiomixer',
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configuration: test_conf
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)
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endif
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endforeach
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