From efd347cf8252fbf5cf2b5c075d3c149a4b8b5f36 Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Sat, 18 Nov 2023 00:02:40 +0100
Subject: gpu pipeline

---
 Cargo.lock            | 693 +++++++++++++++++++++++++++++++++++++++++++++++---
 Cargo.toml            |   1 +
 flowy/Cargo.toml      |  12 +
 flowy/src/main.rs     | 207 +++++++++++++++
 flowy/src/shader.wgsl |  11 +
 test                  |  14 +-
 6 files changed, 904 insertions(+), 34 deletions(-)
 create mode 100644 flowy/Cargo.toml
 create mode 100644 flowy/src/main.rs
 create mode 100644 flowy/src/shader.wgsl

diff --git a/Cargo.lock b/Cargo.lock
index a470e9a..347e9c9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "addr2line"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
+dependencies = [
+ "gimli",
+]
+
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -118,7 +127,7 @@ version = "0.37.3+1.3.251"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39e9c3835d686b0a6084ab4234fcd1b07dbf6e4767dce60874b12356a25ecd4a"
 dependencies = [
- "libloading",
+ "libloading 0.7.4",
 ]
 
 [[package]]
@@ -138,6 +147,21 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "backtrace"
+version = "0.3.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837"
+dependencies = [
+ "addr2line",
+ "cc",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
+]
+
 [[package]]
 name = "bincode"
 version = "2.0.0-rc.3"
@@ -328,6 +352,12 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
+[[package]]
+name = "com-rs"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf43edc576402991846b093a7ca18a3477e0ef9c588cde84964b5d3e43016642"
+
 [[package]]
 name = "console"
 version = "0.15.7"
@@ -433,7 +463,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "827914e1f53b1e0e025ecd3d967a7836b7bcb54520f90e21ef8df7b4d88a2759"
 dependencies = [
  "bitflags 1.3.2",
- "libloading",
+ "libloading 0.7.4",
+ "winapi",
+]
+
+[[package]]
+name = "d3d12"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e16e44ab292b1dddfdaf7be62cfd8877df52f2f3fde5858d95bab606be259f20"
+dependencies = [
+ "bitflags 2.4.1",
+ "libloading 0.8.1",
  "winapi",
 ]
 
@@ -493,6 +534,12 @@ dependencies = [
  "termcolor",
 ]
 
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
 [[package]]
 name = "errno"
 version = "0.3.6"
@@ -538,12 +585,27 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "flowy"
+version = "0.1.0"
+dependencies = [
+ "bytemuck",
+ "env_logger 0.10.1",
+ "log",
+ "oneshot",
+ "pollster 0.3.0",
+ "wgpu 0.18.0",
+]
+
 [[package]]
 name = "flume"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55ac459de2512911e4b674ce33cf20befaba382d05b62b008afc1c8b57cbf181"
 dependencies = [
+ "futures-core",
+ "futures-sink",
+ "nanorand",
  "spin",
 ]
 
@@ -553,7 +615,28 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
 dependencies = [
- "foreign-types-shared",
+ "foreign-types-shared 0.1.1",
+]
+
+[[package]]
+name = "foreign-types"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d737d9aa519fb7b749cbc3b962edcf310a8dd1f4b67c91c4f83975dbdd17d965"
+dependencies = [
+ "foreign-types-macros",
+ "foreign-types-shared 0.3.1",
+]
+
+[[package]]
+name = "foreign-types-macros"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a5c6c585bc94aaf2c7b51dd4c2ba22680844aba4c687be581871a6f518c5742"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
@@ -562,6 +645,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
 
+[[package]]
+name = "foreign-types-shared"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa9a19cbb55df58761df49b23516a86d432839add4af60fc256da840f66ed35b"
+
 [[package]]
 name = "framework"
 version = "0.1.0"
@@ -583,6 +672,12 @@ dependencies = [
  "parking_lot",
 ]
 
+[[package]]
+name = "futures-sink"
+version = "0.3.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e36d3378ee38c2a36ad710c5d30c2911d752cb941c00c72dbabfb786a7970817"
+
 [[package]]
 name = "fxhash"
 version = "0.2.1"
@@ -592,6 +687,19 @@ dependencies = [
  "byteorder",
 ]
 
+[[package]]
+name = "generator"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5cc16584ff22b460a382b7feec54b23d2908d858152e5739a120b949293bd74e"
+dependencies = [
+ "cc",
+ "libc",
+ "log",
+ "rustversion",
+ "windows 0.48.0",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.11"
@@ -599,8 +707,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fe9006bed769170c11f845cf00c7c1e9092aeb3f268e007c3e760ac68008070f"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "wasi",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -613,6 +723,23 @@ dependencies = [
  "weezl",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.28.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fb8d784f27acf97159b40fc4db5ecd8aa23b9ad5ef69cdd136d3bc80665f0c0"
+
+[[package]]
+name = "gl_generator"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a95dfc23a2b4a9a2f5ab41d194f8bfda3cabec42af4e39f08c339eb2a0c124d"
+dependencies = [
+ "khronos_api",
+ "log",
+ "xml-rs",
+]
+
 [[package]]
 name = "glow"
 version = "0.11.2"
@@ -625,6 +752,27 @@ dependencies = [
  "web-sys",
 ]
 
+[[package]]
+name = "glow"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "886c2a30b160c4c6fec8f987430c26b526b7988ca71f664e6a699ddf6f9601e4"
+dependencies = [
+ "js-sys",
+ "slotmap",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "glutin_wgl_sys"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8098adac955faa2d31079b65dc48841251f69efd3ac25477903fc424362ead"
+dependencies = [
+ "gl_generator",
+]
+
 [[package]]
 name = "gpu-alloc"
 version = "0.5.4"
@@ -632,7 +780,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22beaafc29b38204457ea030f6fb7a84c9e4dd1b86e311ba0542533453d87f62"
 dependencies = [
  "bitflags 1.3.2",
- "gpu-alloc-types",
+ "gpu-alloc-types 0.2.0",
+]
+
+[[package]]
+name = "gpu-alloc"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbcd2dba93594b227a1f57ee09b8b9da8892c34d55aa332e034a228d0fe6a171"
+dependencies = [
+ "bitflags 2.4.1",
+ "gpu-alloc-types 0.3.0",
 ]
 
 [[package]]
@@ -644,6 +802,29 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "gpu-alloc-types"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98ff03b468aa837d70984d55f5d3f846f6ec31fe34bbb97c4f85219caeee1ca4"
+dependencies = [
+ "bitflags 2.4.1",
+]
+
+[[package]]
+name = "gpu-allocator"
+version = "0.23.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40fe17c8a05d60c38c0a4e5a3c802f2f1ceb66b76c67d96ffb34bef0475a7fad"
+dependencies = [
+ "backtrace",
+ "log",
+ "presser",
+ "thiserror",
+ "winapi",
+ "windows 0.51.1",
+]
+
 [[package]]
 name = "gpu-descriptor"
 version = "0.2.4"
@@ -689,6 +870,21 @@ dependencies = [
  "allocator-api2",
 ]
 
+[[package]]
+name = "hassle-rs"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1397650ee315e8891a0df210707f0fc61771b0cc518c3023896064c5407cb3b0"
+dependencies = [
+ "bitflags 1.3.2",
+ "com-rs",
+ "libc",
+ "libloading 0.7.4",
+ "thiserror",
+ "widestring",
+ "winapi",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.1"
@@ -751,6 +947,16 @@ dependencies = [
  "hashbrown 0.12.3",
 ]
 
+[[package]]
+name = "indexmap"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d530e1a18b1cb4c484e6e34556a0d948706958449fca0cab753d649f2bce3d1f"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.14.2",
+]
+
 [[package]]
 name = "indicatif"
 version = "0.17.7"
@@ -809,10 +1015,27 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c2352bd1d0bceb871cb9d40f24360c8133c11d7486b68b5381c1dd1a32015e3"
 dependencies = [
  "libc",
- "libloading",
+ "libloading 0.7.4",
+ "pkg-config",
+]
+
+[[package]]
+name = "khronos-egl"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6aae1df220ece3c0ada96b8153459b67eebe9ae9212258bb0134ae60416fdf76"
+dependencies = [
+ "libc",
+ "libloading 0.8.1",
  "pkg-config",
 ]
 
+[[package]]
+name = "khronos_api"
+version = "3.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2db585e1d738fc771bf08a151420d3ed193d9d895a36df7f6f8a9456b911ddc"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -841,6 +1064,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "libloading"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c571b676ddfc9a8c12f1f3d3085a7b163966a8fd8098a90640953ce5f6170161"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "libreschmux"
 version = "0.1.0"
@@ -877,6 +1110,20 @@ version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
+[[package]]
+name = "loom"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff50ecb28bb86013e935fb6683ab1f6d3a20016f123c76fd4c27470076ac30f5"
+dependencies = [
+ "cfg-if",
+ "generator",
+ "pin-utils",
+ "scoped-tls",
+ "tracing",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "malloc_buf"
 version = "0.0.6"
@@ -886,6 +1133,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "matchers"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8263075bb86c5a1b1427b5ae862e8889656f126e9f77c484496e8b47cf5c5558"
+dependencies = [
+ "regex-automata 0.1.10",
+]
+
 [[package]]
 name = "memchr"
 version = "2.6.4"
@@ -910,11 +1166,26 @@ dependencies = [
  "bitflags 1.3.2",
  "block",
  "core-graphics-types",
- "foreign-types",
+ "foreign-types 0.3.2",
  "log",
  "objc",
 ]
 
+[[package]]
+name = "metal"
+version = "0.27.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c43f73953f8cbe511f021b58f18c3ce1c3d1ae13fe953293e13345bf83217f25"
+dependencies = [
+ "bitflags 2.4.1",
+ "block",
+ "core-graphics-types",
+ "foreign-types 0.5.0",
+ "log",
+ "objc",
+ "paste",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.1"
@@ -935,7 +1206,7 @@ dependencies = [
  "bitflags 1.3.2",
  "codespan-reporting",
  "hexf-parse",
- "indexmap",
+ "indexmap 1.9.3",
  "log",
  "num-traits",
  "rustc-hash",
@@ -945,6 +1216,45 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "naga"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6cd05939c491da968a42986204b7431678be21fdcd4b10cc84997ba130ada5a4"
+dependencies = [
+ "bit-set",
+ "bitflags 2.4.1",
+ "codespan-reporting",
+ "hexf-parse",
+ "indexmap 2.1.0",
+ "log",
+ "num-traits",
+ "rustc-hash",
+ "spirv",
+ "termcolor",
+ "thiserror",
+ "unicode-xid",
+]
+
+[[package]]
+name = "nanorand"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a51313c5820b0b02bd422f4b44776fbf47961755c74ce64afc73bfad10226c3"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "nu-ansi-term"
+version = "0.46.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77a8165726e8236064dbb45459242600304b42a5ea24ee2948e18e023bf7ba84"
+dependencies = [
+ "overload",
+ "winapi",
+]
+
 [[package]]
 name = "num-complex"
 version = "0.4.4"
@@ -1009,12 +1319,36 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "object"
+version = "0.32.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cf5f9dd3933bd50a9e1f149ec995f39ae2c496d31fd772c1fd45ebc27e902b0"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
+[[package]]
+name = "oneshot"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f6640c6bda7731b1fdbab747981a0f896dd1fedaf9f4a53fa237a04a84431f4"
+dependencies = [
+ "loom",
+]
+
+[[package]]
+name = "overload"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -1038,6 +1372,24 @@ dependencies = [
  "windows-targets 0.48.5",
 ]
 
+[[package]]
+name = "paste"
+version = "1.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
+
+[[package]]
+name = "pin-project-lite"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.27"
@@ -1063,6 +1415,12 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5da3b0203fd7ee5720aa0b5e790b591aa5d3f41c3ed2c34a3a393382198af2f7"
 
+[[package]]
+name = "pollster"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22686f4785f02a4fcc856d3b3bb19bf6c8160d103f7a99cc258bddd0251dc7f2"
+
 [[package]]
 name = "portable-atomic"
 version = "1.5.1"
@@ -1075,6 +1433,12 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "presser"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8cf8e6a8aa66ce33f63993ffc4ea4271eb5b0530a9002db8455ea6050c77bfa"
+
 [[package]]
 name = "primal-check"
 version = "0.3.3"
@@ -1196,8 +1560,17 @@ checksum = "380b951a9c5e80ddfd6136919eef32310721aa4aacd4889a8d39124b026ab343"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-automata",
- "regex-syntax",
+ "regex-automata 0.4.3",
+ "regex-syntax 0.8.2",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
+dependencies = [
+ "regex-syntax 0.6.29",
 ]
 
 [[package]]
@@ -1208,9 +1581,15 @@ checksum = "5f804c7828047e88b2d32e2d7fe5a105da8ee3264f01902f796c8e067dc2483f"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-syntax",
+ "regex-syntax 0.8.2",
 ]
 
+[[package]]
+name = "regex-syntax"
+version = "0.6.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
+
 [[package]]
 name = "regex-syntax"
 version = "0.8.2"
@@ -1223,6 +1602,18 @@ version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1382d1f0a252c4bf97dc20d979a2fdd05b024acd7c2ed0f7595d7817666a157"
 
+[[package]]
+name = "renderdoc-sys"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "216080ab382b992234dda86873c18d4c48358f5cfcb70fd693d7f6f2131b628b"
+
+[[package]]
+name = "rustc-demangle"
+version = "0.1.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
+
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
@@ -1266,6 +1657,18 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "rustversion"
+version = "1.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
+
+[[package]]
+name = "scoped-tls"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -1292,6 +1695,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "sharded-slab"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f40ca3c46823713e0d4209592e8d6e826aa57e928f09752619fc696c499637f6"
+dependencies = [
+ "lazy_static",
+]
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.7"
@@ -1390,6 +1802,16 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thread_local"
+version = "1.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fdd6f064ccff2d6567adcb3873ca630700f00b5ad3f060c25b5dcfd9a4ce152"
+dependencies = [
+ "cfg-if",
+ "once_cell",
+]
+
 [[package]]
 name = "tiff"
 version = "0.9.0"
@@ -1401,6 +1823,67 @@ dependencies = [
  "weezl",
 ]
 
+[[package]]
+name = "tracing"
+version = "0.1.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
+dependencies = [
+ "pin-project-lite",
+ "tracing-attributes",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-attributes"
+version = "0.1.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
+dependencies = [
+ "once_cell",
+ "valuable",
+]
+
+[[package]]
+name = "tracing-log"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee855f1f400bd0e5c02d150ae5de3840039a3f54b025156404e34c23c03f47c3"
+dependencies = [
+ "log",
+ "once_cell",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-subscriber"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad0f048c97dbd9faa9b7df56362b8ebcaa52adb06b498c050d2f4e32f90a7a8b"
+dependencies = [
+ "matchers",
+ "nu-ansi-term",
+ "once_cell",
+ "regex",
+ "sharded-slab",
+ "smallvec",
+ "thread_local",
+ "tracing",
+ "tracing-core",
+ "tracing-log",
+]
+
 [[package]]
 name = "transpose"
 version = "0.2.2"
@@ -1435,6 +1918,12 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
 
+[[package]]
+name = "valuable"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -1451,9 +1940,9 @@ dependencies = [
  "futures-intrusive",
  "image",
  "log",
- "pollster",
+ "pollster 0.2.5",
  "rand",
- "wgpu",
+ "wgpu 0.14.2",
 ]
 
 [[package]]
@@ -1536,9 +2025,9 @@ checksum = "0d046c5d029ba91a1ed14da14dca44b68bf2f124cfbaf741c54151fdb3e0750b"
 
 [[package]]
 name = "web-sys"
-version = "0.3.65"
+version = "0.3.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5db499c5f66323272151db0e666cd34f78617522fb0c1604d31a27c50c206a85"
+checksum = "9b85cbef8c220a6abc02aefd892dfc0fc23afb1c6a426316ec33253a3877249b"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -1559,7 +2048,7 @@ dependencies = [
  "arrayvec",
  "js-sys",
  "log",
- "naga",
+ "naga 0.10.1",
  "parking_lot",
  "raw-window-handle",
  "smallvec",
@@ -1567,9 +2056,34 @@ dependencies = [
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "web-sys",
- "wgpu-core",
- "wgpu-hal",
- "wgpu-types",
+ "wgpu-core 0.14.2",
+ "wgpu-hal 0.14.1",
+ "wgpu-types 0.14.1",
+]
+
+[[package]]
+name = "wgpu"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30e7d227c9f961f2061c26f4cb0fbd4df0ef37e056edd0931783599d6c94ef24"
+dependencies = [
+ "arrayvec",
+ "cfg-if",
+ "flume",
+ "js-sys",
+ "log",
+ "naga 0.14.1",
+ "parking_lot",
+ "profiling",
+ "raw-window-handle",
+ "smallvec",
+ "static_assertions",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "wgpu-core 0.18.1",
+ "wgpu-hal 0.18.0",
+ "wgpu-types 0.18.0",
 ]
 
 [[package]]
@@ -1585,15 +2099,38 @@ dependencies = [
  "codespan-reporting",
  "fxhash",
  "log",
- "naga",
+ "naga 0.10.1",
  "parking_lot",
  "profiling",
  "raw-window-handle",
  "smallvec",
  "thiserror",
  "web-sys",
- "wgpu-hal",
- "wgpu-types",
+ "wgpu-hal 0.14.1",
+ "wgpu-types 0.14.1",
+]
+
+[[package]]
+name = "wgpu-core"
+version = "0.18.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef91c1d62d1e9e81c79e600131a258edf75c9531cbdbde09c44a011a47312726"
+dependencies = [
+ "arrayvec",
+ "bit-vec",
+ "bitflags 2.4.1",
+ "codespan-reporting",
+ "log",
+ "naga 0.14.1",
+ "parking_lot",
+ "profiling",
+ "raw-window-handle",
+ "rustc-hash",
+ "smallvec",
+ "thiserror",
+ "web-sys",
+ "wgpu-hal 0.18.0",
+ "wgpu-types 0.18.0",
 ]
 
 [[package]]
@@ -1609,29 +2146,72 @@ dependencies = [
  "bitflags 1.3.2",
  "block",
  "core-graphics-types",
- "d3d12",
- "foreign-types",
+ "d3d12 0.5.0",
+ "foreign-types 0.3.2",
  "fxhash",
- "glow",
- "gpu-alloc",
+ "glow 0.11.2",
+ "gpu-alloc 0.5.4",
+ "gpu-descriptor",
+ "js-sys",
+ "khronos-egl 4.1.0",
+ "libloading 0.7.4",
+ "log",
+ "metal 0.24.0",
+ "naga 0.10.1",
+ "objc",
+ "parking_lot",
+ "profiling",
+ "range-alloc",
+ "raw-window-handle",
+ "renderdoc-sys 0.7.1",
+ "smallvec",
+ "thiserror",
+ "wasm-bindgen",
+ "web-sys",
+ "wgpu-types 0.14.1",
+ "winapi",
+]
+
+[[package]]
+name = "wgpu-hal"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e30b9a8155c83868e82a8c5d3ce899de6c3961d2ef595de8fc168a1677fc2d8"
+dependencies = [
+ "android_system_properties",
+ "arrayvec",
+ "ash",
+ "bit-set",
+ "bitflags 2.4.1",
+ "block",
+ "core-graphics-types",
+ "d3d12 0.7.0",
+ "glow 0.13.0",
+ "glutin_wgl_sys",
+ "gpu-alloc 0.6.0",
+ "gpu-allocator",
  "gpu-descriptor",
+ "hassle-rs",
  "js-sys",
- "khronos-egl",
- "libloading",
+ "khronos-egl 6.0.0",
+ "libc",
+ "libloading 0.8.1",
  "log",
- "metal",
- "naga",
+ "metal 0.27.0",
+ "naga 0.14.1",
  "objc",
+ "once_cell",
  "parking_lot",
  "profiling",
  "range-alloc",
  "raw-window-handle",
- "renderdoc-sys",
+ "renderdoc-sys 1.0.0",
+ "rustc-hash",
  "smallvec",
  "thiserror",
  "wasm-bindgen",
  "web-sys",
- "wgpu-types",
+ "wgpu-types 0.18.0",
  "winapi",
 ]
 
@@ -1644,6 +2224,23 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "wgpu-types"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d5ed5f0edf0de351fe311c53304986315ce866f394a2e6df0c4b3c70774bcdd"
+dependencies = [
+ "bitflags 2.4.1",
+ "js-sys",
+ "web-sys",
+]
+
+[[package]]
+name = "widestring"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "653f141f39ec16bba3c5abe400a0c60da7468261cc2cbf36805022876bc721a8"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -1675,6 +2272,34 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows"
+version = "0.51.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca229916c5ee38c2f2bc1e9d8f04df975b4bd93f9955dc69fabb5d91270045c9"
+dependencies = [
+ "windows-core",
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows-core"
+version = "0.51.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1f8cf84f35d2db49a46868f947758c7a1138116f7fac3bc844f43ade1292e64"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.45.0"
@@ -1807,6 +2432,12 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
+[[package]]
+name = "xml-rs"
+version = "0.8.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fcb9cbac069e033553e8bb871be2fbdffcab578eb25bd0f7c508cedc6dcd75a"
+
 [[package]]
 name = "zerocopy"
 version = "0.7.26"
diff --git a/Cargo.toml b/Cargo.toml
index 4245d75..5312e98 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,7 @@ members = [
     "difftree",
     "evc",
     "framework",
+    "flowy",
     "bv1/app",
     "bv1/codec",
     "bv1/codec-web",
diff --git a/flowy/Cargo.toml b/flowy/Cargo.toml
new file mode 100644
index 0000000..faac2c7
--- /dev/null
+++ b/flowy/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "flowy"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+wgpu = "0.18.0"
+bytemuck = "1.14.0"
+pollster = "0.3.0"
+env_logger = "0.10.1"
+log = "0.4.20"
+oneshot = "0.1.6"
diff --git a/flowy/src/main.rs b/flowy/src/main.rs
new file mode 100644
index 0000000..d225c00
--- /dev/null
+++ b/flowy/src/main.rs
@@ -0,0 +1,207 @@
+use std::io::{stdin, stdout, Read, Write};
+
+use pollster::FutureExt;
+use wgpu::{
+    include_wgsl, Backends, BindGroupDescriptor, BindGroupEntry, BindGroupLayoutDescriptor,
+    BindGroupLayoutEntry, BindingType, CommandEncoder, ComputePipelineDescriptor, DeviceDescriptor,
+    Extent3d, Features, ImageCopyTexture, Instance, InstanceDescriptor, InstanceFlags, Limits,
+    MaintainBase, Origin3d, PipelineLayoutDescriptor, PowerPreference, RequestAdapterOptions,
+    ShaderStages, TextureDescriptor, TextureDimension, TextureFormat, TextureSampleType,
+    TextureUsages, TextureViewDimension,
+};
+
+fn main() {
+    let instance = Instance::new(InstanceDescriptor {
+        backends: Backends::all(),
+        ..Default::default()
+    });
+
+    let adapter = instance
+        .request_adapter(&RequestAdapterOptions {
+            power_preference: PowerPreference::HighPerformance,
+            force_fallback_adapter: false,
+            compatible_surface: None,
+        })
+        .block_on()
+        .unwrap();
+
+    let (device, queue) = adapter
+        .request_device(
+            &DeviceDescriptor {
+                label: None,
+                features: Features::BGRA8UNORM_STORAGE,
+                limits: Limits::default(),
+            },
+            None,
+        )
+        .block_on()
+        .unwrap();
+
+    let (width, height) = (1920, 1080);
+    let extent = Extent3d {
+        width: width as u32,
+        height: height as u32,
+        depth_or_array_layers: 1,
+    };
+
+    let [texa, texb] = [(), ()].map(|_| {
+        device.create_texture(&TextureDescriptor {
+            label: None,
+            size: extent,
+            mip_level_count: 1,
+            sample_count: 1,
+            dimension: TextureDimension::D2,
+            format: TextureFormat::Bgra8Unorm,
+            usage: TextureUsages::TEXTURE_BINDING | TextureUsages::COPY_DST,
+            view_formats: &[],
+        })
+    });
+    let out_tex = device.create_texture(&TextureDescriptor {
+        label: None,
+        size: extent,
+        mip_level_count: 1,
+        sample_count: 1,
+        dimension: TextureDimension::D2,
+        format: TextureFormat::Bgra8Unorm,
+        usage: TextureUsages::STORAGE_BINDING | TextureUsages::COPY_SRC,
+        view_formats: &[],
+    });
+
+    let mut buffer = vec![0u8; width * height * 4];
+
+    let download_buffer = device.create_buffer(&wgpu::BufferDescriptor {
+        label: None,
+        size: buffer.len() as u64,
+        usage: wgpu::BufferUsages::COPY_DST | wgpu::BufferUsages::MAP_READ,
+        mapped_at_creation: false,
+    });
+
+    let bind_group_layout = device.create_bind_group_layout(&BindGroupLayoutDescriptor {
+        label: None,
+        entries: &[
+            BindGroupLayoutEntry {
+                binding: 0,
+                count: None,
+                ty: wgpu::BindingType::StorageTexture {
+                    access: wgpu::StorageTextureAccess::WriteOnly,
+                    format: TextureFormat::Bgra8Unorm,
+                    view_dimension: wgpu::TextureViewDimension::D2,
+                },
+                visibility: ShaderStages::COMPUTE,
+            },
+            BindGroupLayoutEntry {
+                binding: 1,
+                count: None,
+                ty: BindingType::Texture {
+                    sample_type: TextureSampleType::Float { filterable: false },
+                    view_dimension: TextureViewDimension::D2,
+                    multisampled: false,
+                },
+                visibility: ShaderStages::COMPUTE,
+            },
+        ],
+    });
+
+    let bind_goup = device.create_bind_group(&BindGroupDescriptor {
+        label: None,
+        layout: &bind_group_layout,
+        entries: &[
+            BindGroupEntry {
+                binding: 0,
+                resource: wgpu::BindingResource::TextureView(
+                    &out_tex.create_view(&Default::default()),
+                ),
+            },
+            BindGroupEntry {
+                binding: 1,
+                resource: wgpu::BindingResource::TextureView(
+                    &texa.create_view(&Default::default()),
+                ),
+            },
+        ],
+    });
+
+    let pipeline_layout = device.create_pipeline_layout(&PipelineLayoutDescriptor {
+        label: None,
+        bind_group_layouts: &[&bind_group_layout],
+        push_constant_ranges: &[],
+    });
+
+    let module = device.create_shader_module(include_wgsl!("shader.wgsl"));
+    let pipeline = device.create_compute_pipeline(&ComputePipelineDescriptor {
+        label: None,
+        layout: Some(&pipeline_layout),
+        module: &module,
+        entry_point: "main",
+    });
+
+    loop {
+        eprintln!("read");
+        stdin().read_exact(&mut buffer).unwrap();
+
+        eprintln!("upload");
+        queue.write_texture(
+            ImageCopyTexture {
+                aspect: wgpu::TextureAspect::All,
+                mip_level: 0,
+                origin: Origin3d::ZERO,
+                texture: &texa,
+            },
+            &buffer,
+            wgpu::ImageDataLayout {
+                offset: 0,
+                bytes_per_row: Some(extent.width * 4),
+                rows_per_image: Some(extent.height),
+            },
+            extent,
+        );
+
+        eprintln!("compute");
+        let mut encoder = device.create_command_encoder(&Default::default());
+
+        {
+            let mut cpass = encoder.begin_compute_pass(&wgpu::ComputePassDescriptor {
+                label: None,
+                timestamp_writes: None,
+            });
+            cpass.set_pipeline(&pipeline);
+            cpass.set_bind_group(0, &bind_goup, &[]);
+            cpass.dispatch_workgroups(width as u32, height as u32, 1);
+        }
+
+        encoder.copy_texture_to_buffer(
+            wgpu::ImageCopyTexture {
+                texture: &out_tex,
+                mip_level: 0,
+                origin: wgpu::Origin3d::ZERO,
+                aspect: wgpu::TextureAspect::All,
+            },
+            wgpu::ImageCopyBuffer {
+                buffer: &download_buffer,
+                layout: wgpu::ImageDataLayout {
+                    offset: 0,
+                    bytes_per_row: Some(extent.width * 4),
+                    rows_per_image: Some(extent.height),
+                },
+            },
+            extent,
+        );
+
+        queue.submit(Some(encoder.finish()));
+        device.poll(MaintainBase::Wait);
+
+        eprintln!("download");
+        let buffer_slice = download_buffer.slice(..);
+        let (sender, receiver) = oneshot::channel();
+        buffer_slice.map_async(wgpu::MapMode::Read, move |r| sender.send(r).unwrap());
+        device.poll(wgpu::Maintain::Wait);
+        receiver.recv().unwrap().unwrap();
+        {
+            let view = buffer_slice.get_mapped_range();
+            buffer.copy_from_slice(&view[..]);
+        }
+        download_buffer.unmap();
+        eprintln!("write");
+        stdout().write_all(&buffer).unwrap();
+    }
+}
diff --git a/flowy/src/shader.wgsl b/flowy/src/shader.wgsl
new file mode 100644
index 0000000..1597ff6
--- /dev/null
+++ b/flowy/src/shader.wgsl
@@ -0,0 +1,11 @@
+
+@group(0) @binding(0) var output: texture_storage_2d<bgra8unorm, write>;
+@group(0) @binding(1) var texa: texture_2d<f32>;
+
+
+@compute @workgroup_size(1) fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
+    let p = textureLoad(texa, global_id.xy, 0);
+    textureStore(output, global_id.xy, p);
+}
+
+
diff --git a/test b/test
index defc559..3a5a4f8 100755
--- a/test
+++ b/test
@@ -1,4 +1,12 @@
 #!/bin/fish
-ffmpeg -loglevel quiet -i $argv[2] -vf 'scale=1920x1080,format=rgb24' -f rawvideo pipe:1 \
-    | V_WIDTH=1920 V_HEIGHT=1080 V_MODE=encode cargo run --release --bin $argv[1] \
-    | ffplay -loglevel quiet -video_size 1920x1080 -pixel_format rgb24 -f rawvideo pipe:0
+
+set -q V_WIDTH; or export V_WIDTH=1920 
+set -q V_HEIGHT; or export V_HEIGHT=1080
+set -q V_MODE; or export V_MODE=encode
+set -q V_DEBUG; or export V_DEBUG=0
+
+set res (echo -s $V_WIDTH x $V_HEIGHT)
+
+ffmpeg -loglevel quiet -i $argv[2] -vf "scale=$res,format=rgb24" -f rawvideo pipe:1 \
+    | cargo run --release --bin $argv[1] \
+    | ffplay -loglevel quiet -video_size $res -pixel_format rgb24 -f rawvideo pipe:0
-- 
cgit v1.2.3-70-g09d2