WIP flattening to midi events
This commit is contained in:
Denis Redozubov
parent
c642c72061
commit
8f84491801
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@ -2,12 +2,125 @@
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "autocfg"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "convert_case"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
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[[package]]
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name = "crossbeam-channel"
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version = "0.5.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a33c2bf77f2df06183c3aa30d1e96c0695a313d4f9c453cc3762a6db39f99200"
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dependencies = [
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"cfg-if",
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-deque"
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version = "0.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ce6fd6f855243022dcecf8702fef0c297d4338e226845fe067f6341ad9fa0cef"
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dependencies = [
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"cfg-if",
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"crossbeam-epoch",
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-epoch"
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version = "0.9.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "46bd5f3f85273295a9d14aedfb86f6aadbff6d8f5295c4a9edb08e819dcf5695"
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dependencies = [
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"autocfg",
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"cfg-if",
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"crossbeam-utils",
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"memoffset",
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"scopeguard",
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]
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[[package]]
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name = "crossbeam-utils"
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version = "0.8.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3c063cd8cc95f5c377ed0d4b49a4b21f632396ff690e8470c29b3359b346984b"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "derive_more"
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version = "0.99.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
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dependencies = [
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"convert_case",
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"proc-macro2",
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"quote",
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"rustc_version",
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"syn",
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]
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[[package]]
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name = "either"
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version = "1.8.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
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[[package]]
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name = "hermit-abi"
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version = "0.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
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dependencies = [
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"libc",
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]
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[[package]]
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name = "libc"
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version = "0.2.142"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6a987beff54b60ffa6d51982e1aa1146bc42f19bd26be28b0586f252fccf5317"
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[[package]]
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name = "memchr"
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version = "2.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
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[[package]]
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name = "memoffset"
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version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d61c719bcfbcf5d62b3a09efa6088de8c54bc0bfcd3ea7ae39fcc186108b8de1"
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dependencies = [
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"autocfg",
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]
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[[package]]
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name = "midly"
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version = "0.5.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "207d755f4cb882d20c4da58d707ca9130a0c9bc5061f657a4f299b8e36362b7a"
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dependencies = [
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"rayon",
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]
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[[package]]
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name = "minimal-lexical"
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version = "0.2.1"
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@ -24,9 +137,99 @@ dependencies = [
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"minimal-lexical",
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]
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[[package]]
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name = "num_cpus"
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version = "1.15.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
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dependencies = [
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"hermit-abi",
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"libc",
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]
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[[package]]
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name = "poly"
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version = "0.1.0"
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dependencies = [
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"derive_more",
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"midly",
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"nom",
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]
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[[package]]
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name = "proc-macro2"
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version = "1.0.56"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
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dependencies = [
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"unicode-ident",
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]
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[[package]]
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name = "quote"
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version = "1.0.26"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "rayon"
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version = "1.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1d2df5196e37bcc87abebc0053e20787d73847bb33134a69841207dd0a47f03b"
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dependencies = [
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"either",
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"rayon-core",
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]
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[[package]]
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name = "rayon-core"
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version = "1.11.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4b8f95bd6966f5c87776639160a66bd8ab9895d9d4ab01ddba9fc60661aebe8d"
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dependencies = [
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"crossbeam-channel",
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"crossbeam-deque",
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"crossbeam-utils",
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"num_cpus",
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]
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[[package]]
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name = "rustc_version"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
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dependencies = [
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"semver",
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]
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[[package]]
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name = "scopeguard"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
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[[package]]
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name = "semver"
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version = "1.0.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bebd363326d05ec3e2f532ab7660680f3b02130d780c299bca73469d521bc0ed"
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[[package]]
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name = "syn"
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version = "1.0.109"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
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dependencies = [
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"proc-macro2",
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"quote",
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"unicode-ident",
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]
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[[package]]
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name = "unicode-ident"
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version = "1.0.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
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@ -11,3 +11,5 @@ path = "src/bin/main.rs"
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[dependencies]
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nom = "*"
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midly = "0.5.3"
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derive_more = "*"
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@ -1,4 +1,5 @@
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use poly::dsl;
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use poly::midi;
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fn main() {
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println!("Hello, world!");
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@ -6,7 +6,7 @@ use nom::multi::many1;
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use nom::sequence::{separated_pair, tuple, delimited};
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use nom::{Err, IResult};
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use nom::branch::alt;
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use nom::bytes::complete::tag;
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use nom::combinator::{map, map_res};
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#[derive(Debug, Clone, PartialEq, Eq)]
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@ -40,7 +40,7 @@ pub enum Note {
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}
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct Times(u16);
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pub struct Times(pub u16);
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub enum GroupOrNote {
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@ -82,6 +82,7 @@ static ONCE : Times = Times(1);
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static TWICE: Times = Times(2);
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static THRICE : Times = Times(3);
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fn hit(input: &str) -> IResult<&str, Note> {
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map(char('x'), |_| { Note::Hit })(input)
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}
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@ -1 +1,2 @@
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pub mod dsl;
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pub mod dsl;
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pub mod process;
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@ -0,0 +1,6 @@
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use super::dsl::{BasicLength};
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pub struct TimeSignature {
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numerator: u8,
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denominator: BasicLength
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}
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@ -1 +1,2 @@
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pub mod dsl;
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pub mod dsl;
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pub mod midi;
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@ -0,0 +1,110 @@
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extern crate derive_more;
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use derive_more::{Mul, Add};
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use midly::{Smf, Header, live::LiveEvent, MidiMessage, num::u15};
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use std::convert::{TryFrom};
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use crate::dsl::dsl::{Group, Length, ModdedLength, BasicLength};
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#[derive(Debug, PartialEq, Eq, PartialOrd, Ord)]
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pub struct FlatNote {
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// measured in ticks (128th notes), so it's easy to align to a midi grid
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length: u8
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Add, Mul)]
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#[repr(transparent)]
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pub struct Tick(pub u128);
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
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pub enum EventType {
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NoteOn,
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NoteOff,
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Tempo,
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Signature
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
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pub struct Event {
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tick: Tick,
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event_type: EventType
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}
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// Events are supposed to be sorted.
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pub type EventGrid = Vec<Event>;
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static TICKS_PER_QUARTER_NOTE : u16 = 48;
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fn basic_length_to_ticks(basic_length: BasicLength) -> Tick {
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match basic_length {
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BasicLength::Whole => Tick((TICKS_PER_QUARTER_NOTE * 4) as u128),
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BasicLength::Half => Tick((TICKS_PER_QUARTER_NOTE * 2) as u128),
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BasicLength::Fourth => Tick(TICKS_PER_QUARTER_NOTE as u128),
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BasicLength::Eighth => Tick((TICKS_PER_QUARTER_NOTE / 2) as u128),
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BasicLength::Sixteenth => Tick((TICKS_PER_QUARTER_NOTE / 4) as u128),
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BasicLength::ThirtySecond => Tick((TICKS_PER_QUARTER_NOTE / 8) as u128),
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BasicLength::SixtyFourth => Tick((TICKS_PER_QUARTER_NOTE / 16) as u128),
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}
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}
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fn modded_length_to_ticks(modded_length: ModdedLength) -> Tick {
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match modded_length {
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ModdedLength::Plain(blen) => basic_length_to_ticks(blen),
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ModdedLength::Dotted(blen) => {
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let Tick(whole) = basic_length_to_ticks(blen);
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let half = whole / 2;
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Tick(whole + half)
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}
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}
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}
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fn length_to_ticks(length: Length) -> Tick {
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match length {
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Length::Simple(mlen) => modded_length_to_ticks(mlen),
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Length::Tied(first, second) => modded_length_to_ticks(first) + modded_length_to_ticks(second),
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Length::Triplet(mlen) => {
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let Tick(straight) = modded_length_to_ticks(mlen);
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let triplet = straight * 2 / 3;
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Tick(triplet)
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}
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}
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}
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fn flatten_group(Group { notes, length, times }: Group, start: Tick) -> EventGrid {
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let mut time = start;
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let note_length = length_to_ticks(length);
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let mut grid = Vec::new();
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let ticks = length_to_ticks(length);
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for entry in notes.iter() { |entry|
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match entry {
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crate::dsl::dsl::GroupOrNote::SingleGroup(_) => todo!(),
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crate::dsl::dsl::GroupOrNote::SingleNote(Rest) => { time = time + note_length },
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crate::dsl::dsl::GroupOrNote::SingleNote(Hit) => {
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let note_end = time + note_length;
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let note_on = Event { tick: time, event_type: EventType::NoteOn };
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let note_off = Event { tick: note_end, event_type: EventType::NoteOff };
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grid.push(note_on);
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grid.push(note_off);
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time = note_end;
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},
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};
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}
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grid.repeat(times.0 as usize)
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}
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fn flatten_groups(groups: Vec<Group>) -> EventGrid {
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let mut out : EventGrid = Vec::new();
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groups.iter().flat_map(|Group { notes, length, times }| {
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}).collect()
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}
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// The length of a beat is not standard, so in order to fully describe the length of a MIDI tick the MetaMessage::Tempo event should be present.
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fn create_smf<'a>() -> Smf<'a> {
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let tracks = vec![]; // FIXME
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// https://majicdesigns.github.io/MD_MIDIFile/page_timing.html
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// says " If it is not specified the MIDI default is 48 ticks per quarter note."
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// As it's required in `Header`, let's use the same value.
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let metrical = midly::Timing::Metrical(u15::new(TICKS_PER_QUARTER_NOTE.clone()));
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Smf { header: Header { format: midly::Format::Parallel, timing: metrical }, tracks: tracks }
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}
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@ -0,0 +1 @@
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pub mod core;
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