feat(snd): implement audio playback using rodio

Also add rodio as dependency for audio

Cargo.lock

@@ -25,6 +25,28 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "alsa"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75c4da790adcb2ce5e758c064b4f3ec17a30349f9961d3e5e6c9688b052a9e18"
+dependencies = [
+ "alsa-sys",
+ "bitflags",
+ "libc",
+ "nix 0.20.0",
+]
+
+[[package]]
+name = "alsa-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db8fee663d06c4e303404ef5f40488a53e062f89ba8bfed81f42325aafad1527"
+dependencies = [
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "andrew"
 version = "0.3.1"
@@ -97,6 +119,25 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4521f3e3d031370679b3b140beb36dfe4801b09ac77e30c61941f97df3ef28b"
 
+[[package]]
+name = "bindgen"
+version = "0.56.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2da379dbebc0b76ef63ca68d8fc6e71c0f13e59432e0987e508c1820e6ab5239"
+dependencies = [
+ "bitflags",
+ "cexpr",
+ "clang-sys",
+ "lazy_static",
+ "lazycell",
+ "peeking_take_while",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "rustc-hash",
+ "shlex",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.5.2"
@@ -148,6 +189,12 @@ version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
+[[package]]
+name = "bytes"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
+
 [[package]]
 name = "calloop"
 version = "0.6.5"
@@ -167,6 +214,21 @@ dependencies = [
  "jobserver",
 ]
 
+[[package]]
+name = "cesu8"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
+
+[[package]]
+name = "cexpr"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f4aedb84272dbe89af497cf81375129abda4fc0a9e7c5d317498c15cc30c0d27"
+dependencies = [
+ "nom 5.1.2",
+]
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -185,6 +247,17 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fd16c4719339c4530435d38e511904438d07cce7950afa3718a84ac36c10e89e"
 
+[[package]]
+name = "clang-sys"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "853eda514c284c2287f4bf20ae614f8781f40a81d32ecda6e91449304dfe077c"
+dependencies = [
+ "glob",
+ "libc",
+ "libloading 0.7.0",
+]
+
 [[package]]
 name = "clap"
 version = "2.33.3"
@@ -200,6 +273,12 @@ dependencies = [
  "vec_map",
 ]
 
+[[package]]
+name = "claxon"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bfbf56724aa9eca8afa4fcfadeb479e722935bb2a0900c2d37e0cc477af0688"
+
 [[package]]
 name = "cocoa"
 version = "0.24.0"
@@ -231,6 +310,16 @@ dependencies = [
  "objc",
 ]
 
+[[package]]
+name = "combine"
+version = "4.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2d47c1b11006b87e492b53b313bb699ce60e16613c4dddaa91f8f7c220ab2fa"
+dependencies = [
+ "bytes",
+ "memchr",
+]
+
 [[package]]
 name = "copyless"
 version = "0.1.5"
@@ -335,6 +424,70 @@ dependencies = [
  "objc",
 ]
 
+[[package]]
+name = "coreaudio-rs"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11894b20ebfe1ff903cbdc52259693389eea03b94918a2def2c30c3bf227ad88"
+dependencies = [
+ "bitflags",
+ "coreaudio-sys",
+]
+
+[[package]]
+name = "coreaudio-sys"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b7e3347be6a09b46aba228d6608386739fb70beff4f61e07422da87b0bb31fa"
+dependencies = [
+ "bindgen",
+]
+
+[[package]]
+name = "cpal"
+version = "0.13.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8351ddf2aaa3c583fa388029f8b3d26f3c7035a20911fdd5f2e2ed7ab57dad25"
+dependencies = [
+ "alsa",
+ "core-foundation-sys 0.6.2",
+ "coreaudio-rs",
+ "jni",
+ "js-sys",
+ "lazy_static",
+ "libc",
+ "mach 0.3.2",
+ "ndk 0.3.0",
+ "ndk-glue 0.3.0",
+ "nix 0.20.0",
+ "oboe",
+ "parking_lot",
+ "stdweb 0.1.3",
+ "thiserror",
+ "web-sys",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
+dependencies = [
+ "cfg-if 1.0.0",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+dependencies = [
+ "cfg-if 1.0.0",
+ "lazy_static",
+]
+
 [[package]]
 name = "d3d12"
 version = "0.3.2"
@@ -542,11 +695,13 @@ dependencies = [
  "anyhow",
  "bitfield",
  "clap",
+ "crossbeam-channel",
  "egui",
  "egui_wgpu_backend",
  "egui_winit_platform",
  "gilrs",
  "pixels",
+ "rodio",
  "winit",
  "winit_input_helper",
 ]
@@ -735,12 +890,18 @@ dependencies = [
  "log",
  "nix 0.20.0",
  "rusty-xinput",
- "stdweb",
+ "stdweb 0.4.20",
  "uuid",
  "vec_map",
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
 [[package]]
 name = "glow"
 version = "0.7.2"
@@ -781,7 +942,7 @@ checksum = "e8a70f1e87a3840ed6a3e99e02c2b861e4dbdf26f0d07e38f42ea5aff46cfce2"
 dependencies = [
  "bitflags",
  "gpu-descriptor-types",
- "hashbrown",
+ "hashbrown 0.9.1",
  "tracing",
 ]
 
@@ -804,14 +965,26 @@ dependencies = [
 ]
 
 [[package]]
-name = "hermit-abi"
+name = "hashbrown"
-version = "0.1.18"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
+checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+
+[[package]]
+name = "hermit-abi"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
 dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hound"
+version = "3.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a164bb2ceaeff4f42542bdb847c41517c78a60f5649671b2a07312b6e117549"
+
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -820,12 +993,12 @@ checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
 [[package]]
 name = "indexmap"
-version = "1.6.2"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "824845a0bf897a9042383849b02c1bc219c2383772efcd5c6f9766fa4b81aef3"
+checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.11.2",
 ]
 
 [[package]]
@@ -850,7 +1023,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f21dcc74995dd4cd090b147e79789f8d65959cbfb5f0b118002db869ea3bd0a0"
 dependencies = [
  "core-foundation-sys 0.6.2",
- "mach",
+ "mach 0.2.3",
 ]
 
 [[package]]
@@ -868,6 +1041,20 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
+[[package]]
+name = "jni"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24967112a1e4301ca5342ea339763613a37592b8a6ce6cf2e4494537c7a42faf"
+dependencies = [
+ "cesu8",
+ "combine",
+ "jni-sys",
+ "log",
+ "thiserror",
+ "walkdir",
+]
+
 [[package]]
 name = "jni-sys"
 version = "0.3.0"
@@ -925,10 +1112,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
-name = "libc"
+name = "lewton"
-version = "0.2.97"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12b8adadd720df158f4d70dfe7ccc6adb0472d7c55ca83445f6a5ab3e36f8fb6"
+checksum = "777b48df9aaab155475a83a7df3070395ea1ac6902f5cd062b8f2b028075c030"
+dependencies = [
+ "byteorder",
+ "ogg",
+ "tinyvec",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.98"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
 
 [[package]]
 name = "libloading"
@@ -987,6 +1185,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "mach"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b823e83b2affd8f40a9ee8c29dbc56404c1e34cd2710921f2801e2cf29527afa"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "malloc_buf"
 version = "0.0.6"
@@ -1031,6 +1238,26 @@ dependencies = [
  "objc",
 ]
 
+[[package]]
+name = "minimp3"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "985438f75febf74c392071a975a29641b420dd84431135a6e6db721de4b74372"
+dependencies = [
+ "minimp3-sys",
+ "slice-deque",
+ "thiserror",
+]
+
+[[package]]
+name = "minimp3-sys"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e21c73734c69dc95696c9ed8926a2b393171d98b3f5f5935686a26a487ab9b90"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "mio"
 version = "0.6.23"
@@ -1098,7 +1325,19 @@ checksum = "5eb167c1febed0a496639034d0c76b3b74263636045db5489eee52143c246e73"
 dependencies = [
  "jni-sys",
  "ndk-sys",
- "num_enum",
+ "num_enum 0.4.3",
+ "thiserror",
+]
+
+[[package]]
+name = "ndk"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8794322172319b972f528bf90c6b467be0079f1fa82780ffb431088e741a73ab"
+dependencies = [
+ "jni-sys",
+ "ndk-sys",
+ "num_enum 0.5.1",
  "thiserror",
 ]
 
@@ -1111,7 +1350,21 @@ dependencies = [
  "lazy_static",
  "libc",
  "log",
- "ndk",
+ "ndk 0.2.1",
+ "ndk-macro",
+ "ndk-sys",
+]
+
+[[package]]
+name = "ndk-glue"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c5caf0c24d51ac1c905c27d4eda4fa0635bbe0de596b8f79235e0b17a4d29385"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "ndk 0.3.0",
  "ndk-macro",
  "ndk-sys",
 ]
@@ -1172,14 +1425,35 @@ dependencies = [
 
 [[package]]
 name = "nom"
-version = "6.2.0"
+version = "5.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "046a595c7251e2f48b291c1b65d98ef1df51dbfbad46e99a1ff09729535a779e"
+checksum = "ffb4262d26ed83a1c0a33a38fe2bb15797329c85770da05e6b828ddb782627af"
 dependencies = [
  "memchr",
  "version_check",
 ]
 
+[[package]]
+name = "nom"
+version = "6.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c5c51b9083a3c620fa67a2a635d1ce7d95b897e957d6b28ff9a5da960a103a6"
+dependencies = [
+ "memchr",
+ "version_check",
+]
+
+[[package]]
+name = "num-derive"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "876a53fff98e03a936a674b29568b0e605f06b29372c2489ff4de23f1949743d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.14"
@@ -1196,7 +1470,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ca565a7df06f3d4b485494f25ba05da1435950f4dc263440eda7a6fa9b8e36e4"
 dependencies = [
  "derivative",
- "num_enum_derive",
+ "num_enum_derive 0.4.3",
+]
+
+[[package]]
+name = "num_enum"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "226b45a5c2ac4dd696ed30fa6b94b057ad909c7b7fc2e0d0808192bced894066"
+dependencies = [
+ "derivative",
+ "num_enum_derive 0.5.1",
 ]
 
 [[package]]
@@ -1211,6 +1495,18 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "num_enum_derive"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c0fd9eba1d5db0994a239e09c1be402d35622277e35468ba891aa5e3188ce7e"
+dependencies = [
+ "proc-macro-crate",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "objc"
 version = "0.2.7"
@@ -1230,6 +1526,38 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "oboe"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dfa187b38ae20374617b7ad418034ed3dc90ac980181d211518bd03537ae8f8d"
+dependencies = [
+ "jni",
+ "ndk 0.3.0",
+ "ndk-glue 0.3.0",
+ "num-derive",
+ "num-traits",
+ "oboe-sys",
+]
+
+[[package]]
+name = "oboe-sys"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b88e64835aa3f579c08d182526dc34e3907343d5b97e87b71a40ba5bca7aca9e"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "ogg"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6951b4e8bf21c8193da321bcce9c9dd2e13c858fe078bf9054a288b419ae5d6e"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.8.0"
@@ -1270,6 +1598,12 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "peeking_take_while"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -1288,9 +1622,9 @@ dependencies = [
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
+checksum = "8d31d11c69a6b52a174b42bdc0c30e5e11670f90788b2c471c31c1d17d449443"
 
 [[package]]
 name = "pixels"
@@ -1368,6 +1702,40 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "regex"
+version = "1.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+dependencies = [
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
+[[package]]
+name = "rodio"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4d98f5e557b61525057e2bc142c8cd7f0e70d75dc32852309bec440e6e046bf9"
+dependencies = [
+ "claxon",
+ "cpal",
+ "hound",
+ "lewton",
+ "minimp3",
+]
+
+[[package]]
+name = "rustc-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+
 [[package]]
 name = "rustc_version"
 version = "0.2.3"
@@ -1483,6 +1851,12 @@ version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
 
+[[package]]
+name = "shlex"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fdf1b9db47230893d76faad238fd6097fd6d6a9245cd7a4d90dbd639536bbd2"
+
 [[package]]
 name = "slab"
 version = "0.4.3"
@@ -1490,10 +1864,21 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f173ac3d1a7e3b28003f40de0b5ce7fe2710f9b9dc3fc38664cebee46b3b6527"
 
 [[package]]
-name = "slotmap"
+name = "slice-deque"
-version = "0.4.0"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c46a3482db8f247956e464d783693ece164ca056e6e67563ee5505bdb86452cd"
+checksum = "31ef6ee280cdefba6d2d0b4b78a84a1c1a3f3a4cec98c2d4231c8bc225de0f25"
+dependencies = [
+ "libc",
+ "mach 0.3.2",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "slotmap"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d61b40583e0c1bd3100652ba8940939decc8808e7b2a07f4f4606c6a8a40035a"
 
 [[package]]
 name = "smallvec"
@@ -1541,6 +1926,12 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "stdweb"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef5430c8e36b713e13b48a9f709cc21e046723fe44ce34587b73a830203b533e"
+
 [[package]]
 name = "stdweb"
 version = "0.4.20"
@@ -1635,18 +2026,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.25"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa6f76457f59514c7eeb4e59d891395fab0b2fd1d40723ae737d64153392e9c6"
+checksum = "93119e4feac1cbe6c798c34d3a53ea0026b0b1de6a120deef895137c0529bfe2"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.25"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a36768c0fbf1bb15eca10defa29526bda730a2376c2ab4393ccfa16fb1a318d"
+checksum = "060d69a0afe7796bf42e9e2ff91f5ee691fb15c53d38b4b62a9a53eb23164745"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1659,6 +2050,21 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7572415bd688d401c52f6e36f4c8e805b9ae1622619303b9fa835d531db0acae"
 
+[[package]]
+name = "tinyvec"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b5220f05bb7de7f3f53c7c065e1199b3172696fe2db9f9c4d8ad9b4ee74c342"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
+
 [[package]]
 name = "toml"
 version = "0.5.8"
@@ -1830,9 +2236,9 @@ checksum = "7e7811dd7f9398f14cc76efd356f98f03aa30419dea46aa810d71e819fc97158"
 
 [[package]]
 name = "wayland-client"
-version = "0.28.5"
+version = "0.28.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ca44d86554b85cf449f1557edc6cc7da935cc748c8e4bf1c507cbd43bae02c"
+checksum = "e3ab332350e502f159382201394a78e3cc12d0f04db863429260164ea40e0355"
 dependencies = [
  "bitflags",
  "downcast-rs",
@@ -1846,9 +2252,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-commons"
-version = "0.28.5"
+version = "0.28.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8bd75ae380325dbcff2707f0cd9869827ea1d2d6d534cff076858d3f0460fd5a"
+checksum = "a21817947c7011bbd0a27e11b17b337bfd022e8544b071a2641232047966fbda"
 dependencies = [
  "nix 0.20.0",
  "once_cell",
@@ -1858,9 +2264,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-cursor"
-version = "0.28.5"
+version = "0.28.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b37e5455ec72f5de555ec39b5c3704036ac07c2ecd50d0bffe02d5fe2d4e65ab"
+checksum = "be610084edd1586d45e7bdd275fe345c7c1873598caa464c4fb835dee70fa65a"
 dependencies = [
  "nix 0.20.0",
  "wayland-client",
@@ -1869,9 +2275,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-protocols"
-version = "0.28.5"
+version = "0.28.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95df3317872bcf9eec096c864b69aa4769a1d5d6291a5b513f8ba0af0efbd52c"
+checksum = "286620ea4d803bacf61fa087a4242ee316693099ee5a140796aaba02b29f861f"
 dependencies = [
  "bitflags",
  "wayland-client",
@@ -1881,9 +2287,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-scanner"
-version = "0.28.5"
+version = "0.28.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "389d680d7bd67512dc9c37f39560224327038deb0f0e8d33f870900441b68720"
+checksum = "ce923eb2deb61de332d1f356ec7b6bf37094dc5573952e1c8936db03b54c03f1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1892,9 +2298,9 @@ dependencies = [
 
 [[package]]
 name = "wayland-sys"
-version = "0.28.5"
+version = "0.28.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2907bd297eef464a95ba9349ea771611771aa285b932526c633dc94d5400a8e2"
+checksum = "d841fca9aed7febf9bed2e9796c49bf58d4152ceda8ac949ebe00868d8f0feb8"
 dependencies = [
  "dlib 0.5.0",
  "lazy_static",
@@ -2041,8 +2447,8 @@ dependencies = [
  "log",
  "mio",
  "mio-extras",
- "ndk",
+ "ndk 0.2.1",
- "ndk-glue",
+ "ndk-glue 0.2.1",
  "ndk-sys",
  "objc",
  "parking_lot",
@@ -2100,7 +2506,7 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a9a231574ae78801646617cefd13bfe94be907c0e4fa979cfd8b770aa3c5d08"
 dependencies = [
- "nom",
+ "nom 6.2.1",
 ]
 
 [[package]]

Cargo.toml

@@ -17,6 +17,8 @@ winit_input_helper = "^0.9"
 egui = "^0.10"
 egui_wgpu_backend = { git="https://github.com/hasenbanck/egui_wgpu_backend.git", rev="9d03ad345d15d1e44165849b242d3562fdf3e859" }
 egui_winit_platform = { git="https://github.com/hasenbanck/egui_winit_platform.git", rev="17298250e9721e8bf2c1d4a17b3e22777f8cb2e8" }
+rodio = "^0.14"
+crossbeam-channel = "^0.5"
 
 [profile.release]
 debug = true

src/bus.rs

@@ -4,7 +4,7 @@ use crate::interrupt::{Interrupt, InterruptFlag};
 use crate::joypad::Joypad;
 use crate::ppu::{Ppu, PpuMode};
 use crate::serial::Serial;
-use crate::sound::Sound;
+use crate::sound::{SampleSender, Sound};
 use crate::timer::Timer;
 use crate::work_ram::{VariableWorkRam, WorkRam};
 use std::{fs::File, io::Read};
@@ -66,6 +66,10 @@ impl Bus {
         self.cartridge.as_ref()?.title()
     }
 
+    pub(crate) fn pass_audio_src(&mut self, sender: SampleSender) {
+        self.snd.set_audio_src(sender)
+    }
+
     pub(crate) fn clock(&mut self) {
         self.ppu.clock();
         self.timer.clock();
@@ -233,7 +237,7 @@ impl BusIo for Bus {
                     0x23 => self.snd.ch4.freq_data(),
                     0x24 => self.snd.ctrl.channel.into(),
                     0x25 => self.snd.ctrl.output.into(),
-                    0x26 => self.snd.ctrl.status.into(),
+                    0x26 => self.snd.ctrl.status(&self.snd),
                     0x30..=0x3F => self.snd.ch3.wave_ram[addr as usize - 0xFF30],
                     0x40 => self.ppu.ctrl.into(),
                     0x41 => self.ppu.stat.into(),
@@ -351,7 +355,7 @@ impl BusIo for Bus {
                     0x23 => self.snd.ch4.set_freq_data(byte),
                     0x24 => self.snd.ctrl.channel = byte.into(),
                     0x25 => self.snd.ctrl.output = byte.into(),
-                    0x26 => self.snd.ctrl.status = byte.into(), // FIXME: Should we control which bytes are written to here?
+                    0x26 => self.snd.ctrl.set_status(byte), // FIXME: Should we control which bytes are written to here?
                     0x30..=0x3F => self.snd.ch3.wave_ram[addr as usize - 0xFF30] = byte,
                     0x40 => self.ppu.ctrl = byte.into(),
                     0x41 => self.ppu.stat.update(byte),

src/cpu.rs

@@ -3,6 +3,7 @@ use crate::instruction::{Cycle, Instruction};
 use crate::interrupt::{InterruptEnable, InterruptFlag};
 use crate::joypad::Joypad;
 use crate::ppu::Ppu;
+use crate::sound::SampleSender;
 use crate::timer::Timer;
 use bitfield::bitfield;
 use std::fmt::{Display, Formatter, Result as FmtResult};
@@ -44,6 +45,10 @@ impl Cpu {
         })
     }
 
+    pub fn set_audio_src(&mut self, sender: SampleSender) {
+        self.bus.pass_audio_src(sender)
+    }
+
     pub(crate) fn ime(&self) -> ImeState {
         self.ime
     }

src/emu.rs

@@ -4,11 +4,12 @@ use crate::joypad;
 use crate::ppu::Ppu;
 use anyhow::Result;
 use gilrs::Gilrs;
+use rodio::OutputStreamHandle;
 use std::time::Duration;
 
 pub const SM83_CYCLE_TIME: Duration = Duration::from_nanos(1_000_000_000 / SM83_CLOCK_SPEED);
 pub const CYCLES_IN_FRAME: Cycle = Cycle::new(456 * 154); // 456 Cycles times 154 scanlines
-const SM83_CLOCK_SPEED: u64 = 0x40_0000; // Hz which is 4.194304Mhz
+pub(crate) const SM83_CLOCK_SPEED: u64 = 0x40_0000; // Hz which is 4.194304Mhz
 const DEFAULT_TITLE: &str = "DMG-01 Emulator";
 
 pub fn init(boot_path: Option<&str>, rom_path: &str) -> Result<SM83> {

src/instruction.rs

@@ -2277,13 +2277,13 @@ impl From<Cycle> for u32 {
 
 impl InstrRegisterPair {
     fn to_register_pair(self) -> RegisterPair {
-        RegisterPair::try_from(self).expect("Failed to convert InstrRegisterPair to RegisterPair")
+        RegisterPair::try_from(self).expect("InstrRegisterPair is a valid RegisterPair")
     }
 }
 
 impl InstrRegister {
     fn to_register(self) -> Register {
-        Register::try_from(self).expect("Failed to convert from InstrRegister to Register")
+        Register::try_from(self).expect("InstrRegister is a valid Register")
     }
 }
 

src/lib.rs

@@ -1,5 +1,6 @@
 pub use gui::Egui;
 pub use instruction::Cycle;
+pub use sound::AudioSenderReceiver;
 
 pub const GB_WIDTH: usize = 160;
 pub const GB_HEIGHT: usize = 144;

src/main.rs

@@ -1,12 +1,14 @@
 use anyhow::{anyhow, Result};
 use clap::{crate_authors, crate_description, crate_name, crate_version, App, Arg};
-use gb::{Cycle, Egui, GB_HEIGHT, GB_WIDTH};
+use gb::{AudioSenderReceiver, Cycle, Egui, GB_HEIGHT, GB_WIDTH};
 use gilrs::Gilrs;
 use pixels::{Pixels, SurfaceTexture};
+use rodio::{OutputStream, Sink};
 use std::time::Instant;
 use winit::dpi::LogicalSize;
 use winit::event::{Event, VirtualKeyCode};
 use winit::event_loop::{ControlFlow, EventLoop};
+use winit::platform::windows::WindowBuilderExtWindows;
 use winit::window::{Window, WindowBuilder};
 use winit_input_helper::WinitInputHelper;
 
@@ -39,14 +41,16 @@ fn main() -> Result<()> {
 
     // `rom` is a required value in every situation so this will
     // always exist.
-    let rom_path = m.value_of("rom").unwrap();
+    let rom_path = m
+        .value_of("rom")
+        .expect("Required value 'rom' was provided");
 
     let mut game_boy =
-        gb::emu::init(m.value_of("boot"), rom_path).expect("Failed to initialize DMG-01 Emulator");
+        gb::emu::init(m.value_of("boot"), rom_path).expect("Initialized DMG-01 Emulator");
     let cartridge_title = gb::emu::rom_title(&game_boy);
 
     // Initialize Gamepad Support
-    let mut gamepad = Gilrs::new().expect("Failed to initialize Gilrs");
+    let mut gamepad = Gilrs::new().expect("Initialized Gilrs for Controller Input");
 
     // Initialize GUI
     let event_loop = EventLoop::new();
@@ -63,6 +67,19 @@ fn main() -> Result<()> {
         (pixels, egui)
     };
 
+    let (send, recv) = AudioSenderReceiver::new();
+    game_boy.set_audio_src(send);
+
+    // Initialize Audio
+    let (_stream, stream_handle) = OutputStream::try_default().expect("Initialized Audio");
+    let sink = Sink::try_new(&stream_handle).expect("Initialize Audio Sink");
+
+    std::thread::spawn(move || {
+        sink.append(recv);
+
+        sink.sleep_until_end();
+    });
+
     let mut now = Instant::now();
     let mut cycle_count: Cycle = Default::default();
 
@@ -133,5 +150,6 @@ fn create_window(event_loop: &EventLoop<()>, title: &str) -> Result<Window> {
         .with_resizable(true)
         .with_decorations(true)
         .with_transparent(false)
+        .with_drag_and_drop(false) // OleInitialize failed error if this is set to true
         .build(event_loop)?)
 }

src/ppu.rs

@@ -278,7 +278,7 @@ impl Ppu {
                         .obj
                         .tile
                         .bytes()
-                        .expect("Failed to unwrap Tile bytes");
+                        .expect("Tile high & low bytes are present");
 
                     let tbpp = Pixels::from_bytes(high, low);
 
@@ -539,7 +539,7 @@ impl ObjectAttributeTable {
 
         let slice: &[u8; 4] = self.buf[start..(start + 4)]
             .try_into()
-            .expect("Could not interpret &[u8] as a &[u8; 4]");
+            .expect("TryInto trait called on a &[u8; 4]");
 
         slice.into()
     }
@@ -704,7 +704,7 @@ impl PixelFetcher {
         let scroll_y = pos.scroll_y;
         let is_window = self.back.is_window_tile();
 
-        let id = self.back.tile.id.expect("Tile Number unexpectedly missing");
+        let id = self.back.tile.id.expect("Tile Number is present");
 
         let tile_data_addr = match control.tile_data_addr() {
             TileDataAddress::X8800 => 0x9000u16.wrapping_add(((id as i8) as i16 * 16) as u16),
@@ -721,7 +721,11 @@ impl PixelFetcher {
     }
 
     fn send_to_fifo(&self, fifo: &mut FifoRenderer, palette: &BackgroundPalette) {
-        let (high, low) = self.back.tile.bytes().expect("Failed to unwrap Tile bytes");
+        let (high, low) = self
+            .back
+            .tile
+            .bytes()
+            .expect("Tile high & low bytes are present");
 
         let tbpp = Pixels::from_bytes(high, low);
 

src/ppu/dma.rs

@@ -30,7 +30,7 @@ impl DirectMemoryAccess {
                     .start
                     .addr
                     .as_mut()
-                    .expect("DMA Transfer Attempted without a known source address");
+                    .expect("Source Address present during DMA Transfer");
 
                 let addresses = if (self.cycle - 4) % 4 == 0 {
                     *src_addr += 1;

src/sound.rs

@@ -1,8 +1,15 @@
 use bitfield::bitfield;
+use crossbeam_channel::{Receiver, Sender};
+use rodio::Source;
+
+use crate::emu::SM83_CLOCK_SPEED;
+use crate::Cycle;
 
 const WAVE_PATTERN_RAM_LEN: usize = 0x10;
+const SAMPLE_RATE: u32 = 4800; // Hz
+const SAMPLE_RATE_IN_CYCLES: Cycle = Cycle::new((SM83_CLOCK_SPEED / SAMPLE_RATE as u64) as u32);
 
-#[derive(Debug, Clone, Copy, Default)]
+#[derive(Debug, Clone, Default)]
 pub(crate) struct Sound {
     pub(crate) ctrl: SoundControl,
     /// Tone & Sweep
@@ -17,11 +24,15 @@ pub(crate) struct Sound {
     // Frame Sequencer
     frame_seq_state: FrameSequencerState,
     div_prev: Option<u8>,
+
+    sender: Option<SampleSender>,
+    cycle: Cycle,
 }
 
 impl Sound {
     pub(crate) fn clock(&mut self, div: u16) {
         use FrameSequencerState::*;
+        self.cycle += 1;
 
         // the 5th bit of the high byte
         let bit_5 = (div >> 13 & 0x01) as u8;
@@ -49,6 +60,24 @@ impl Sound {
         }
 
         self.div_prev = Some(bit_5);
+
+        // TODO: Should the FrameSequencer be run first?
+        if self.cycle > SAMPLE_RATE_IN_CYCLES {
+            // Sample the APU
+            self.cycle %= SAMPLE_RATE_IN_CYCLES;
+
+            let left_sample = self.ch2.clock();
+            let right_sample = self.ch2.clock();
+
+            if let Some(send) = self.sender.as_ref() {
+                send.add_sample(left_sample);
+                send.add_sample(right_sample);
+            }
+        }
+    }
+
+    pub(crate) fn set_audio_src(&mut self, sender: SampleSender) {
+        self.sender = Some(sender);
     }
 
     fn handle_length(&mut self) {
@@ -213,8 +242,25 @@ pub(crate) struct SoundControl {
     pub(crate) channel: ChannelControl,
     /// 0xFF25 | NR51 - Selection of Sound output terminal
     pub(crate) output: SoundOutput,
+
+    enabled: bool,
+}
+
+impl SoundControl {
     /// 0xFF26 | NR52 - Sound On/Off
-    pub(crate) status: SoundStatus,
+    pub fn status(&self, snd: &Sound) -> u8 {
+        (self.enabled as u8) << 7
+            | (snd.ch4.enabled as u8) << 3
+            | (snd.ch3.enabled as u8) << 2
+            | (snd.ch2.enabled as u8) << 1
+            | snd.ch1.enabled as u8
+    }
+
+    /// 0xFF26 | NR52 - Sound On/Off
+    pub fn set_status(&mut self, byte: u8) {
+        // TODO: Should all channel enabled fields be disabled when this is reset?
+        self.enabled = (byte >> 7) & 0x01 == 0x01;
+    }
 }
 
 // TODO: What to do about the separation of freq bits
@@ -467,10 +513,25 @@ pub(crate) struct Channel2 {
     // Length Functionality
     length_timer: u16,
 
+    freq_timer: u16,
+    duty_pos: u8,
+
     enabled: bool,
 }
 
 impl Channel2 {
+    fn clock(&mut self) -> u8 {
+        self.freq_timer -= 1;
+
+        if self.freq_timer == 0 {
+            // TODO: Why is this 2048?
+            self.freq_timer = (2048 - self.frequency()) * 4;
+            self.duty_pos = (self.duty_pos + 1) % 8;
+        }
+
+        self.duty.wave_pattern().amplitude(self.duty_pos)
+    }
+
     /// 0xFF16 | NR21 - Channel 2 Sound length / Wave Pattern Duty
     pub(crate) fn duty(&self) -> u8 {
         self.duty.into()
@@ -502,6 +563,10 @@ impl Channel2 {
             }
         }
     }
+
+    fn frequency(&self) -> u16 {
+        (self.freq_hi.freq_bits() as u16) << 8 | self.freq_lo as u16
+    }
 }
 
 bitfield! {
@@ -605,6 +670,20 @@ pub enum WavePattern {
     ThreeQuarters = 3, // 75%   ( ______--______--______-- )
 }
 
+impl WavePattern {
+    pub const fn amplitude(&self, index: u8) -> u8 {
+        use WavePattern::*;
+        let i = 7 - index; // an index of 0 should get the highest bit
+
+        match *self {
+            OneEighth => (0b00000001 >> i) & 0x01,
+            OneQuarter => (0b10000001 >> i) & 0x01,
+            OneHalf => (0b10000111 >> i) & 0x01,
+            ThreeQuarters => (0b01111110 >> i) & 0x01,
+        }
+    }
+}
+
 impl Default for WavePattern {
     fn default() -> Self {
         Self::OneEighth // Rationale: OneEighth is 0x00
@@ -947,3 +1026,62 @@ impl From<ChannelControl> for u8 {
         ctrl.0
     }
 }
+
+pub struct AudioSenderReceiver;
+
+impl AudioSenderReceiver {
+    pub fn new() -> (SampleSender, SampleReceiver) {
+        let (send, recv) = crossbeam_channel::unbounded();
+
+        (SampleSender { send }, SampleReceiver { recv })
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct SampleSender {
+    send: Sender<u8>,
+}
+
+impl SampleSender {
+    fn add_sample(&self, sample: u8) {
+        self.send
+            .send(sample)
+            .expect("Send audio sample across threads");
+    }
+}
+
+pub struct SampleReceiver {
+    recv: Receiver<u8>,
+}
+
+impl Iterator for SampleReceiver {
+    type Item = f32;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        // TODO: Should this never return none?
+        self.recv.recv().ok().map(|num| num as f32)
+    }
+}
+
+impl Source for SampleReceiver {
+    fn current_frame_len(&self) -> Option<usize> {
+        // A frame changes when the samples rate or
+        // number of channels change. This will never happen, so
+        // we return
+        None
+    }
+
+    fn channels(&self) -> u16 {
+        // The Gameboy supports two channels
+        2
+    }
+
+    fn sample_rate(&self) -> u32 {
+        SAMPLE_RATE
+    }
+
+    fn total_duration(&self) -> Option<std::time::Duration> {
+        // The duration of this source is infinite
+        None
+    }
+}