prepare for 0.4.1 release

(probably some misuse on my side, need to investigate more)

.github/workflows/ci.yml

@@ -30,9 +30,9 @@ jobs:
       run: sudo apt-get install -y libxkbcommon-dev libasound2-dev
       if: matrix.os == 'ubuntu-latest'
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
     - name: Cache build dirs
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: |
           ~/.cargo/bin/
@@ -44,7 +44,7 @@ jobs:
     - name: Build
       run: cargo build --release --verbose
     - name: Upload artifact
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         name: uw8-${{ matrix.build }}
         path: target/release/${{ matrix.exe }}

.github/workflows/main.yml

@@ -8,12 +8,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: build_and_deploy
-        uses: shalzz/zola-deploy-action@v0.14.1
+        uses: shalzz/zola-deploy-action@70a101a14bbdeed13e7a42a9ed06b35c9e9e826e
         env:
           # Target branch
           PAGES_BRANCH: gh-pages
           BUILD_DIR: site
           # Provide personal access token
-          TOKEN: $GITHUB_ACTOR:${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "uw8"
-version = "0.2.1"
+version = "0.4.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -11,19 +11,21 @@ native = ["wasmtime", "uw8-window", "cpal", "rubato" ]
 browser = ["warp", "tokio", "tokio-stream", "webbrowser"]
 
 [dependencies]
-wasmtime = { version = "0.37.0", optional = true }
+wasmtime = { git = "https://github.com/bytecodealliance/wasmtime.git", rev = "0f48f939b9870036562ca02ff21253547a9f1a5c", optional = true }
 anyhow = "1"
+env_logger = "0.11.3"
+log = "0.4"
 uw8-window = { path = "uw8-window", optional = true }
-notify = "4"
+notify-debouncer-mini = { version = "0.4.1", default-features = false }
-pico-args = "0.4"
+pico-args = "0.5"
 curlywas = { git = "https://github.com/exoticorn/curlywas.git", rev = "0e7ea50" }
 wat = "1"
 uw8-tool = { path = "uw8-tool" }
 same-file = "1"
-warp = { version = "0.3.2", optional = true }
+warp = { version = "0.3.6", optional = true }
-tokio = { version = "1.17.0", features = ["sync", "rt"], optional = true }
+tokio = { version = "1.37.0", features = ["sync", "rt"], optional = true }
-tokio-stream = { version = "0.1.8", features = ["sync"], optional = true }
+tokio-stream = { version = "0.1.15", features = ["sync"], optional = true }
-webbrowser = { version = "0.6.0", optional = true }
+webbrowser = { version = "0.8.13", optional = true }
 ansi_term = "0.12.1"
-cpal = { version = "0.13.5", optional = true }
+cpal = { version = "0.15.3", optional = true }
-rubato = { version = "0.11.0", optional = true }
+rubato = { version = "0.12.0", optional = true }

README.md

@@ -15,9 +15,9 @@ See [here](https://exoticorn.github.io/microw8/) for more information and docs.
 
 ## Downloads
 
-* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.1.2/microw8-0.1.2-linux.tgz)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-linux.tgz)
-* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.1.2/microw8-0.1.2-macos.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-macos.tgz)
-* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.1.2/microw8-0.1.2-windows.zip)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-windows.zip)
 
 The download includes
 
@@ -43,6 +43,27 @@ Options:
 -l LEVEL, --level LEVEL : Compression level (0-9). Higher compression levels are really slow.
 -o FILE, --output FILE  : Write the loaded and optionally packed cart back to disk.
 
+when using the native runtime:
+
+-m, --no-audio          : Disable audio, also reduces cpu load a bit
+--no-gpu                : Force old cpu-only window code
+--filter FILTER         : Select an upscale filter at startup
+--fullscreen            : Start in fullscreen mode
+
+Note that the cpu-only window does not support fullscreen nor upscale filters.
+
+Unless --no-gpu is given, uw8 will first try to open a gpu accelerated window, falling back to the old cpu-only window if that fails.
+Therefore you should rarely need to manually pass --no-gpu. If you prefer the old pixel doubling look to the now default crt filter,
+you can just pass "--filter nearest" or "--filter 1".
+
+The upscale filter options are:
+1, nearest              : Anti-aliased nearest filter
+2, fast_crt             : Very simple, cheap crt filter, not very good below a window size of 960x720
+3, ss_crt               : Super sampled crt filter, a little more demanding on the GPU but scales well to smaller window sizes
+4, chromatic_crt        : Variant of fast_crt with a slight offset of the three color dots of a pixel, still pretty cheap
+5, auto_crt (default)   : ss_crt below 960x720, chromatic_crt otherwise
+
+You can switch the upscale filter at any time using the keys 1-5. You can toggle fullscreen with F.
 
 uw8 pack [<options>] <infile> <outfile>
 

examples/curlywas/scaled_text.cwa

@@ -0,0 +1,14 @@
+include "../include/microw8-api.cwa"
+
+export fn upd() {
+	printString(USER_MEM);
+}
+
+data USER_MEM {
+	// clear screen, switch to graphics text mode, text scale 4
+	i8(12, 5, 30, 4)
+	// text color, position, print two lines
+	i8(15, 86, 31, 8, 80) "Hello," i8(8, 8, 8, 8, 8, 10) "MicroW8!"
+	// print same two lines with different color and slight offset 
+	i8(15, 47, 31, 10, 82) "Hello," i8(8, 8, 8, 8, 8, 10) "MicroW8!" i8(0)
+}

examples/curlywas/sprites.cwa

@@ -0,0 +1,21 @@
+include "../include/microw8-api.cwa"
+
+const SPRITE = 0x20000;
+
+export fn upd() {
+	cls(0);
+	let t = time() / 2_f;
+	let i: i32;
+	loop spriteLoop {
+		let inline x = sin(t * -1.3 + i as f32 * (3.141 / 30_f)) * 180_f + 160_f;
+		let inline y = sin(t * 1.7 + i as f32 * (3.141 / 40_f)) * 140_f + 120_f;
+		blitSprite(SPRITE, 16, x as i32, y as i32, (i & 3) * 0x200 + 0x100);
+		branch_if (i +:= 1) < 100: spriteLoop;
+	}
+}
+
+start fn start() {
+	printChar('OO');
+	circle(8_f, 8_f, 6_f, 75);
+	grabSprite(SPRITE, 16, 0, 0, 0);
+}

examples/curlywas/tunnel.cwa

@@ -3,12 +3,14 @@ include "../include/microw8-api.cwa"
 export fn upd() {
     let i: i32;
     loop pixels {
-        let inline t = time() * 63 as f32;
+        let inline t = 16!56;
-        let lazy x = (i % 320 - 160) as f32;
+        let inline x = (i % 320 - 160) as f32;
-        let lazy y = (i / 320 - 120) as f32;
+        let inline y = (i #/ 320 - 120) as f32;
-        let inline d = 40000 as f32 / sqrt(x * x + y * y);
+        let inline d = 0xa000 as f32 / sqrt(x * x + y * y);
-        let inline u = atan2(x, y) * (512.0 / 3.141);
+        let inline a = atan2(x, y) * 163_f; // (512 / pi)
-        let inline c = ((i32.trunc_sat_f32_s(d + t * 2 as f32) ^ i32.trunc_sat_f32_s(u + t)) & 255) >> 4;
+        let inline u = i32.trunc_sat_f32_s(a) + t;
+        let inline v = i32.trunc_sat_f32_s(d) + t * 2;
+        let inline c = ((v ^ u) #/ 16) % 16;
         i?FRAMEBUFFER = c;
 
         branch_if (i := i + 1) < 320*240: pixels;

examples/include/microw8-api.cwa

@@ -30,10 +30,13 @@ import "env.printInt" fn printInt(i32);
 import "env.setTextColor" fn setTextColor(i32);
 import "env.setBackgroundColor" fn setBackgroundColor(i32);
 import "env.setCursorPosition" fn setCursorPosition(i32, i32);
-import "env.rectangle_outline" fn rectangle_outline(f32, f32, f32, f32, i32);
+import "env.rectangleOutline" fn rectangleOutline(f32, f32, f32, f32, i32);
-import "env.circle_outline" fn circle_outline(f32, f32, f32, i32);
+import "env.circleOutline" fn circleOutline(f32, f32, f32, i32);
 import "env.exp" fn exp(f32) -> f32;
 import "env.playNote" fn playNote(i32, i32);
+import "env.sndGes" fn sndGes(i32) -> f32;
+import "env.blitSprite" fn blitSprite(i32, i32, i32, i32, i32);
+import "env.grabSprite" fn grabSprite(i32, i32, i32, i32, i32);
 
 const TIME_MS = 0x40;
 const GAMEPAD = 0x44;

examples/include/microw8-api.wat

@@ -30,10 +30,13 @@
 (import "env" "setTextColor" (func $setTextColor (param i32)))
 (import "env" "setBackgroundColor" (func $setBackgroundColor (param i32)))
 (import "env" "setCursorPosition" (func $setCursorPosition (param i32) (param i32)))
-(import "env" "rectangle_outline" (func $rectangle_outline (param f32) (param f32) (param f32) (param f32) (param i32)))
+(import "env" "rectangleOutline" (func $rectangleOutline (param f32) (param f32) (param f32) (param f32) (param i32)))
-(import "env" "circle_outline" (func $circle_outline (param f32) (param f32) (param f32) (param i32)))
+(import "env" "circleOutline" (func $circleOutline (param f32) (param f32) (param f32) (param i32)))
 (import "env" "exp" (func $exp (param f32) (result f32)))
 (import "env" "playNote" (func $playNote (param i32) (param i32)))
+(import "env" "sndGes" (func $sndGes (param i32) (result f32)))
+(import "env" "blitSprite" (func $blitSprite (param i32) (param i32) (param i32) (param i32) (param i32)))
+(import "env" "grabSprite" (func $grabSprite (param i32) (param i32) (param i32) (param i32) (param i32)))
 
 ;; to use defines, include this file with a preprocessor
 ;; like gpp (https://logological.org/gpp).

platform/Cargo.lock

@@ -19,47 +19,54 @@ dependencies = [
 
 [[package]]
 name = "ahash"
-version = "0.7.6"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
+checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
 dependencies = [
- "getrandom",
+ "cfg-if",
  "once_cell",
  "version_check",
+ "zerocopy",
 ]
 
 [[package]]
 name = "anyhow"
-version = "1.0.52"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84450d0b4a8bd1ba4144ce8ce718fbc5d071358b1e5384bace6536b3d1f2d5b3"
+checksum = "0952808a6c2afd1aa8947271f3a60f1a6763c7b912d210184c5149b5cf147247"
 
 [[package]]
 name = "ariadne"
-version = "0.1.3"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7080ae01b2f0c312065d4914cd0f0de045eb8832e9415b355106a6cff3073cb4"
+checksum = "f1cb2a2046bea8ce5e875551f5772024882de0b540c7f93dfc5d6cf1ca8b030c"
 dependencies = [
  "yansi",
 ]
 
 [[package]]
 name = "autocfg"
-version = "1.0.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+checksum = "f1fdabc7756949593fe60f30ec81974b613357de856987752631dea1e3394c80"
+
+[[package]]
+name = "bitflags"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
 [[package]]
 name = "bytemuck"
-version = "1.7.3"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "439989e6b8c38d1b6570a384ef1e49c8848128f5a97f3914baef02920842712f"
+checksum = "5d6d68c57235a3a081186990eca2867354726650f42f7516ca50c28d6281fd15"
 
 [[package]]
 name = "cc"
-version = "1.0.72"
+version = "1.0.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
+checksum = "2678b2e3449475e95b0aa6f9b506a28e61b3dc8996592b983695e8ebb58a8b41"
 
 [[package]]
 name = "cdivsufsort"
@@ -88,54 +95,47 @@ dependencies = [
 
 [[package]]
 name = "const-random"
-version = "0.1.13"
+version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f590d95d011aa80b063ffe3253422ed5aa462af4e9867d43ce8337562bac77c4"
+checksum = "87e00182fe74b066627d63b85fd550ac2998d4b0bd86bfed477a0ae4c7c71359"
 dependencies = [
  "const-random-macro",
- "proc-macro-hack",
 ]
 
 [[package]]
 name = "const-random-macro"
-version = "0.1.13"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "615f6e27d000a2bffbc7f2f6a8669179378fa27ee4d0a509e985dfc0a7defb40"
+checksum = "f9d839f2a20b0aee515dc581a6172f2321f96cab76c1a38a4c584a194955390e"
 dependencies = [
  "getrandom",
- "lazy_static",
+ "once_cell",
- "proc-macro-hack",
  "tiny-keccak",
 ]
 
 [[package]]
 name = "crc32fast"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "738c290dfaea84fc1ca15ad9c168d083b05a714e1efddd8edaab678dc28d2836"
+checksum = "b3855a8a784b474f333699ef2bbca9db2c4a1f6d9088a90a2d25b1eb53111eaa"
 dependencies = [
  "cfg-if",
 ]
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.1"
+version = "0.5.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
+checksum = "ab3db02a9c5b5121e1e42fbdb1aeb65f5e02624cc58c43f2884c6ccac0b82f95"
 dependencies = [
- "cfg-if",
  "crossbeam-utils",
 ]
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.5"
+version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+checksum = "248e3bacc7dc6baa3b21e405ee045c3047101a49145e7e9eca583ab4c2ca5345"
-dependencies = [
- "cfg-if",
- "lazy_static",
-]
 
 [[package]]
 name = "crunchy"
@@ -151,37 +151,47 @@ dependencies = [
  "anyhow",
  "ariadne",
  "chumsky",
- "pico-args",
+ "pico-args 0.4.2",
  "wasm-encoder 0.10.0",
  "wasmparser 0.83.0",
 ]
 
 [[package]]
-name = "fallible_collections"
+name = "equivalent"
-version = "0.4.4"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52db5973b6a19247baf19b30f41c23a1bfffc2e9ce0a5db2f60e3cd5dc8895f7"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
+[[package]]
+name = "fallible-iterator"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
+
+[[package]]
+name = "fallible_collections"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a88c69768c0a15262df21899142bc6df9b9b823546d4b4b9a7bc2d6c448ec6fd"
 dependencies = [
- "hashbrown",
+ "hashbrown 0.13.2",
 ]
 
 [[package]]
 name = "flate2"
-version = "1.0.22"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
+checksum = "46303f565772937ffe1d394a4fac6f411c6013172fadde9dcdb1e147a086940e"
 dependencies = [
- "cfg-if",
  "crc32fast",
- "libc",
  "miniz_oxide",
 ]
 
 [[package]]
 name = "getrandom"
-version = "0.2.3"
+version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
+checksum = "94b22e06ecb0110981051723910cbf0b5f5e09a2062dd7663334ee79a9d1286c"
 dependencies = [
  "cfg-if",
  "libc",
@@ -189,14 +199,37 @@ dependencies = [
 ]
 
 [[package]]
-name = "hashbrown"
+name = "gimli"
-version = "0.11.2"
+version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d"
 dependencies = [
- "ahash 0.7.6",
+ "fallible-iterator",
+ "indexmap 1.9.3",
+ "stable_deref_trait",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+
+[[package]]
+name = "hashbrown"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43a3c133739dddd0d2990f9a4bdf8eb4b21ef50e4851ca85ab661199821d510e"
+dependencies = [
+ "ahash 0.8.11",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
+
 [[package]]
 name = "heck"
 version = "0.3.3"
@@ -213,10 +246,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "25a2bc672d1148e28034f176e01fffebb08b35768468cc954630da77a1449005"
 
 [[package]]
-name = "lazy_static"
+name = "indexmap"
-version = "1.4.0"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
+dependencies = [
+ "autocfg",
+ "hashbrown 0.12.3",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.14.3",
+]
 
 [[package]]
 name = "leb128"
@@ -225,17 +272,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
 
 [[package]]
-name = "libc"
+name = "lexopt"
-version = "0.2.112"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"
+checksum = "478ee9e62aaeaf5b140bd4138753d1f109765488581444218d3ddda43234f3e8"
+
+[[package]]
+name = "libc"
+version = "0.2.153"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "lodepng"
-version = "3.4.7"
+version = "3.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24844d5c0b922ddd52fb5bf0964a4c7f8e799a946ec01bb463771eb04fc1a323"
+checksum = "a42d298694b14401847de29abd44adf278b42e989e516deac7b72018400002d8"
 dependencies = [
+ "crc32fast",
  "fallible_collections",
  "flate2",
  "libc",
@@ -244,47 +298,42 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
-dependencies = [
- "cfg-if",
-]
 
 [[package]]
 name = "miniz_oxide"
-version = "0.4.4"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
+checksum = "9d811f3e15f28568be3407c8e7fdb6514c1cda3cb30683f15b6a1a1dc4ea14a7"
 dependencies = [
  "adler",
- "autocfg",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.2.14"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+checksum = "da0df0e5185db44f69b44f26786fe401b6c293d1907744beaa7fa62b2e5a517a"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "once_cell"
-version = "1.9.0"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "pbr"
-version = "1.0.4"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff5751d87f7c00ae6403eb1fcbba229b9c76c9a30de8c1cf87182177b168cea2"
+checksum = "ed5827dfa0d69b6c92493d6c38e633bbaa5937c153d0d7c28bf12313f8c6d514"
 dependencies = [
  "crossbeam-channel",
  "libc",
- "time",
  "winapi",
 ]
 
@@ -294,6 +343,12 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db8bcd96cb740d03149cbad5518db9fd87126a10ab519c011893b1754134c468"
 
+[[package]]
+name = "pico-args"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5be167a7af36ee22fe3115051bc51f6e6c7054c9348e28deb4f49bd6f705a315"
+
 [[package]]
 name = "platform"
 version = "0.1.0"
@@ -304,35 +359,29 @@ dependencies = [
  "uw8-tool",
 ]
 
-[[package]]
-name = "proc-macro-hack"
-version = "0.5.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
-
 [[package]]
 name = "proc-macro2"
-version = "1.0.36"
+version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
+checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.15"
+version = "1.0.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "864d3e96a899863136fc6e99f3d7cae289dafe43bf2c5ac19b70df7210c0a145"
+checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "rgb"
-version = "0.8.31"
+version = "0.8.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a374af9a0e5fdcdd98c1c7b64f05004f9ea2555b6c75f211daa81268a3c50f1"
+checksum = "05aaa8004b64fd573fc9d002f4e632d51ad4f026c2b5ba95fcb6c2f32c2c47d8"
 dependencies = [
  "bytemuck",
 ]
@@ -347,24 +396,57 @@ dependencies = [
 ]
 
 [[package]]
-name = "syn"
+name = "semver"
-version = "1.0.86"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a65b3f4ffa0092e9887669db0eae07941f023991ab58ea44da8fe8e2d511c6b"
+checksum = "92d43fe69e652f3df9bdc2b85b2854a0825b86e4fb76bc44d945137d053639ca"
+
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
-name = "time"
+name = "syn"
-version = "0.1.43"
+version = "2.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+checksum = "44cfb93f38070beee36b3fef7d4f5a16f27751d94b187b666a5cc5e9b0d30687"
 dependencies = [
- "libc",
+ "proc-macro2",
- "winapi",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "thiserror"
+version = "1.0.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03468839009160513471e86a034bb2c5c0e4baae3b43f79ffc55c4a5427b3297"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61f3ba182994efc43764a46c018c347bc492c79f024e705f46567b418f6d4f7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.58",
 ]
 
 [[package]]
@@ -377,26 +459,26 @@ dependencies = [
 ]
 
 [[package]]
-name = "unicode-segmentation"
+name = "unicode-ident"
-version = "1.9.0"
+version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e8820f5d777f6224dc4be3632222971ac30164d4a258d595640799554ebfd99"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
 [[package]]
-name = "unicode-xid"
+name = "unicode-segmentation"
-version = "0.2.2"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
 
 [[package]]
 name = "upkr"
-version = "0.1.0"
+version = "0.2.1"
-source = "git+https://github.com/exoticorn/upkr.git?rev=2e7983fc#2e7983fc650788d98da2eecef2d16f63e849e4a0"
+source = "git+https://github.com/exoticorn/upkr.git?rev=080db40d0088bbee2bdf3c5c75288ac7853d6b7a#080db40d0088bbee2bdf3c5c75288ac7853d6b7a"
 dependencies = [
  "anyhow",
  "cdivsufsort",
- "pbr",
+ "lexopt",
- "pico-args",
+ "thiserror",
 ]
 
 [[package]]
@@ -405,31 +487,33 @@ version = "0.1.0"
 dependencies = [
  "anyhow",
  "pbr",
- "pico-args",
+ "pico-args 0.5.0",
  "upkr",
  "walrus",
- "wasm-encoder 0.8.0",
+ "wasm-encoder 0.201.0",
- "wasmparser 0.81.0",
+ "wasmparser 0.201.0",
 ]
 
 [[package]]
 name = "version_check"
-version = "0.9.3"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "walrus"
-version = "0.19.0"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4eb08e48cde54c05f363d984bb54ce374f49e242def9468d2e1b6c2372d291f8"
+checksum = "2c03529cd0c4400a2449f640d2f27cd1b48c3065226d15e26d98e4429ab0adb7"
 dependencies = [
  "anyhow",
+ "gimli",
  "id-arena",
  "leb128",
  "log",
  "walrus-macro",
- "wasmparser 0.77.0",
+ "wasm-encoder 0.29.0",
+ "wasmparser 0.80.2",
 ]
 
 [[package]]
@@ -441,23 +525,14 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
 name = "wasi"
-version = "0.10.2+wasi-snapshot-preview1"
+version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
-
-[[package]]
-name = "wasm-encoder"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db0c351632e46cc06a58a696a6c11e4cf90cad4b9f8f07a0b59128d616c29bb0"
-dependencies = [
- "leb128",
-]
 
 [[package]]
 name = "wasm-encoder"
@@ -469,16 +544,28 @@ dependencies = [
 ]
 
 [[package]]
-name = "wasmparser"
+name = "wasm-encoder"
-version = "0.77.0"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b35c86d22e720a07d954ebbed772d01180501afe7d03d464f413bb5f8914a8d6"
+checksum = "18c41dbd92eaebf3612a39be316540b8377c871cb9bde6b064af962984912881"
+dependencies = [
+ "leb128",
+]
+
+[[package]]
+name = "wasm-encoder"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9c7d2731df60006819b013f64ccc2019691deccf6e11a1804bc850cd6748f1a"
+dependencies = [
+ "leb128",
+]
 
 [[package]]
 name = "wasmparser"
-version = "0.81.0"
+version = "0.80.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98930446519f63d00a836efdc22f67766ceae8dbcc1571379f2bcabc6b2b9abc"
+checksum = "449167e2832691a1bff24cde28d2804e90e09586a448c8e76984792c44334a6b"
 
 [[package]]
 name = "wasmparser"
@@ -486,6 +573,17 @@ version = "0.83.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "718ed7c55c2add6548cca3ddd6383d738cd73b892df400e96b9aa876f0141d7a"
 
+[[package]]
+name = "wasmparser"
+version = "0.201.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "84e5df6dba6c0d7fafc63a450f1738451ed7a0b52295d83e868218fa286bf708"
+dependencies = [
+ "bitflags",
+ "indexmap 2.2.6",
+ "semver",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -510,6 +608,26 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
 name = "yansi"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fc79f4a1e39857fc00c3f662cbf2651c771f00e9c15fe2abc341806bd46bd71"
+checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
+
+[[package]]
+name = "zerocopy"
+version = "0.7.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74d4d3961e53fa4c9a25a8637fc2bfaf2595b3d3ae34875568a5cf64787716be"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.7.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.58",
+]

platform/Cargo.toml

@@ -9,4 +9,4 @@ edition = "2021"
 curlywas = { git="https://github.com/exoticorn/curlywas.git", rev="0e7ea50" }
 uw8-tool = { path="../uw8-tool" }
 anyhow = "1"
-lodepng = "3.4"
+lodepng = "3.7.2"

platform/src/ges.cwa

@@ -10,7 +10,7 @@ const GesState.Size = GesState.Filter + 8*4;
 const GesStateOffset = 32;
 const GesBufferOffset = 32 + GesState.Size;
 
-export fn gesSnd(t: i32) -> f32 {
+export fn sndGes(t: i32) -> f32 {
     let baseAddr = 0!0x12c78;
     if !(t & 127) {
         let i: i32;
@@ -62,7 +62,6 @@ export fn gesSnd(t: i32) -> f32 {
             let phase = channelState!GesChannelState.Phase;
 
             let inline pulseWidth = channelReg?1;
-            let phaseShift = (pulseWidth - 128) * 255;
             let invPhaseInc = 1 as f32 / phaseInc as f32;
 
             i = 0;
@@ -131,7 +130,7 @@ export fn gesSnd(t: i32) -> f32 {
                 let phaseInc = (freq * (65536.0 / 44100.0)) as i32;
 
                 let phase = channelState!GesChannelState.Phase;
-                if modSrc > ch {
+                if modSrc < ch {
                     phase = phase - (phaseInc << 6);
                 }
 

platform/src/platform.cwa

@@ -62,6 +62,7 @@ export fn cls(col: i32) {
     textCursorX = 0;
     textCursorY = 0;
     outputChannel = 0;
+    textScale = 1;
     memory.fill(120, col, 320*240);
 }
 
@@ -171,7 +172,7 @@ export fn rectangle(x: f32, y: f32, w: f32, h: f32, col: i32) {
     }
 }
 
-export fn rectangle_outline(x: f32, y: f32, w: f32, h: f32, col: i32) {
+export fn rectangleOutline(x: f32, y: f32, w: f32, h: f32, col: i32) {
     let xl = nearest(x) as i32;
     let xr = nearest(x + w) as i32;
     let yt = nearest(y) as i32;
@@ -212,7 +213,7 @@ export fn circle(cx: f32, cy: f32, radius: f32, col: i32) {
     }
 }
 
-export fn circle_outline(cx: f32, cy: f32, radius: f32, col: i32) {
+export fn circleOutline(cx: f32, cy: f32, radius: f32, col: i32) {
     let prev_w: f32;
     let y = clamp(nearest(cy - radius) as i32, -1, 241);
     let maxY = clamp(nearest(cy + radius) as i32, -1, 241);
@@ -352,6 +353,92 @@ export fn line(x1: f32, y1: f32, x2: f32, y2: f32, col: i32) {
     setPixel(i32.trunc_sat_f32_s(x1 + f * dx), i32.trunc_sat_f32_s(y1 + f * dy), col);
 }
 
+export fn blitSprite(sprite: i32, size: i32, x: i32, y: i32, control: i32) {
+    let lazy width = size & 65535;
+    let lazy height = select(size >> 16, size >> 16, width);
+
+    let lazy x0 = select(x < 0, -x, 0);
+    let lazy x1 = select(x + width > 320, 320 - x, width);
+    let lazy y0 = select(y < 0, -y, 0);
+    let lazy y1 = select(y + height > 240, 240 - y, height);
+
+    let lazy numRows = y1 - y0;
+    let lazy numCols = x1 - x0;
+    if numRows <= 0 | numCols <= 0 {
+        return;
+    }
+
+    let trans = (control & 511) - 256;
+    let lazy flip_x = 1 - ((control >> 8) & 2);
+    let lazy flip_y = 1 - ((control >> 9) & 2);
+    if flip_x < 0 {
+        sprite += width - 1;
+    }
+    if flip_y < 0 {
+        sprite += (height - 1) * width;
+    }
+
+    let spriteRow = sprite + x0 * flip_x + y0 * flip_y * width;
+    let screenRow = x + x0 + (y + y0) * 320;
+
+    loop yloop {
+        let lx = 0;
+        loop xloop {
+            let lazy col = (spriteRow + lx * flip_x)?0;
+            if col != trans {
+                (screenRow + lx)?120 = col;
+            }
+            branch_if (lx +:= 1) < numCols: xloop;
+        }
+        spriteRow += width * flip_y;
+        screenRow += 320;
+        branch_if numRows -:= 1: yloop;
+    }
+}
+
+export fn grabSprite(sprite: i32, size: i32, x: i32, y: i32, control: i32) {
+    let lazy width = size & 65535;
+    let lazy height = select(size >> 16, size >> 16, width);
+
+    let lazy x0 = select(x < 0, -x, 0);
+    let lazy x1 = select(x + width > 320, 320 - x, width);
+    let lazy y0 = select(y < 0, -y, 0);
+    let lazy y1 = select(y + height > 240, 240 - y, height);
+
+    let lazy numRows = y1 - y0;
+    let lazy numCols = x1 - x0;
+    if numRows <= 0 | numCols <= 0 {
+        return;
+    }
+
+    let trans = (control & 511) - 256;
+    let lazy flip_x = 1 - ((control >> 8) & 2);
+    let lazy flip_y = 1 - ((control >> 9) & 2);
+    if flip_x < 0 {
+        sprite += width - 1;
+    }
+    if flip_y < 0 {
+        sprite += (height - 1) * width;
+    }
+
+    let spriteRow = sprite + x0 * flip_x + y0 * flip_y * width;
+    let screenRow = x + x0 + (y + y0) * 320;
+
+    loop yloop {
+        let lx = 0;
+        loop xloop {
+            let lazy col = (screenRow + lx)?120;
+            if col != trans {
+                (spriteRow + lx * flip_x)?0 = col;
+            }
+            branch_if (lx +:= 1) < numCols: xloop;
+        }
+        spriteRow += width * flip_y;
+        screenRow += 320;
+        branch_if numRows -:= 1: yloop;
+    }
+}
+
 //////////
 // TEXT //
 //////////
@@ -361,6 +448,7 @@ global mut textCursorY = 0;
 global mut textColor = 15;
 global mut bgColor = 0;
 global mut outputChannel = 0;
+global mut textScale = 1;
 
 export fn printChar(char: i32) {
     loop chars {
@@ -372,16 +460,9 @@ export fn printChar(char: i32) {
 global mut controlCodeLength = 0;
 
 fn printSingleChar(char: i32) {
-    if char >= 4 & char <= 6 {
+    let charSize = 8 * textScale;
-        outputChannel = char - 4;
-        if !outputChannel {
-            textCursorX = 0;
-            textCursorY = 0;
-        }
-        return;
-    }
 
-    if outputChannel >= 2 {
+    if outputChannel >= 2 & (char < 4 | char > 6) {
         logChar(char);
         return;
     }
@@ -399,15 +480,24 @@ fn printSingleChar(char: i32) {
         return;
     }
 
+    if char >= 4 & char <= 6 {
+        outputChannel = char - 4;
+        if !outputChannel {
+            textCursorX = 0;
+            textCursorY = 0;
+        }
+        return;
+    }
+
     if char == 7 {
         80?0 = 80?0 ^ 2;
         return;
     }
 
     if char == 8 {
-        textCursorX = textCursorX - 8;
+        textCursorX = textCursorX - charSize;
         if !outputChannel & textCursorX < 0 {
-            textCursorX = 320-8;
+            textCursorX = 320-charSize;
             printSingleChar(11);
         }
         return;
@@ -417,34 +507,34 @@ fn printSingleChar(char: i32) {
         if !outputChannel & textCursorX >= 320 {
             printChar(0xd0a);
         }
-        textCursorX = textCursorX + 8;
+        textCursorX = textCursorX + charSize;
         return;
     }
 
     if char == 10 {
-        textCursorY = textCursorY + 8;
+        textCursorY = textCursorY + charSize;
         if !outputChannel & textCursorY >= 240 {
-            textCursorY = 240 - 8;
+            textCursorY = 240 - charSize;
             let i: i32;
             loop scroll_copy {
-                i!120 = i!(120 + 320 * 8);
+                i!120 = (i + 320 * charSize)!120;
-                branch_if (i := i + 4) < 320 * (240 - 8): scroll_copy;
+                branch_if (i := i + 4) < 320 * (240 - charSize): scroll_copy;
             }
-            rectangle(0 as f32, (240 - 8) as f32, 320 as f32, 8 as f32, bgColor);
+            rectangle(0 as f32, (240 - charSize) as f32, 320 as f32, charSize as f32, bgColor);
         }
         return;
     }
 
     if char == 11 {
-        textCursorY = textCursorY - 8;
+        textCursorY = textCursorY - charSize;
         if !outputChannel & textCursorY < 0 {
             textCursorY = 0;
-            let i = 320 * (240 - 8);
+            let i = 320 * (240 - charSize);
             loop scroll_copy {
-                i!(116 + 320 * 8) = i!116;
+                (i + 320 * charSize)!116 = i!116;
                 branch_if (i := i - 4): scroll_copy;
             }
-            rectangle(0 as f32, 0 as f32, 320 as f32, 8 as f32, bgColor);
+            rectangle(0 as f32, 0 as f32, 320 as f32, charSize as f32, bgColor);
         }
         return;
     }
@@ -476,6 +566,12 @@ fn printSingleChar(char: i32) {
         return;
     }
 
+    if char == 30 {
+        let scale = 0x12d20?1;
+        textScale = select(scale > 0 & scale <= 16, scale, 1);
+        return;
+    }
+
     if char == 31 {
         textCursorX = 0x12d20?1 * (8 - outputChannel * 6);
         textCursorY = 0x12d20?2 * (8 - outputChannel * 7);
@@ -498,7 +594,7 @@ data(0x12d00) {
     1, 1, 1, 1, // 16-19,
     1, 1, 1, 1, // 20-23,
     1, 1, 1, 1, // 24-27,
-    1, 1, 1, 3 // 28-31
+    1, 1, 2, 3 // 28-31
   )
 }
 
@@ -507,26 +603,28 @@ fn drawChar(char: i32) {
         printChar(0xd0a);
     }
 
+    let charSize = 8 * textScale;
+
     let y: i32;
     loop rows {
-        let bits = (char * 8 + y)?0x13400;
+        let bits = (char * 8 + y / textScale)?0x13400;
         let x = 0;
         if outputChannel {
             loop pixels {
-                if (bits := bits << 1) & 256 {
+                if (bits << (x / textScale)) & 128 {
                     setPixel(textCursorX + x, textCursorY + y, textColor);
                 }
-                branch_if (x := x + 1) < 8: pixels;
+                branch_if (x := x + 1) < charSize: pixels;
             }
         } else {
             loop pixels {
-                setPixel(textCursorX + x, textCursorY + y, select((bits := bits << 1) & 256, textColor, bgColor));
+                setPixel(textCursorX + x, textCursorY + y, select((bits << (x / textScale)) & 128, textColor, bgColor));
-                branch_if (x := x + 1) < 8: pixels;
+                branch_if (x := x + 1) < charSize: pixels;
             }
         }
-        branch_if (y := y + 1) < 8: rows;
+        branch_if (y := y + 1) < charSize: rows;
     }
-    textCursorX = textCursorX + 8;
+    textCursorX = textCursorX + charSize;
 }
 
 export fn printString(ptr: i32) {

site/content/_index.md

@@ -14,6 +14,8 @@ The initial motivation behind MicroW8 was to explore whether there was a way to
 * Memory: 256KB
 * Gamepad input (D-Pad + 4 Buttons)
 
+For detailed [documentation see here](docs).
+
 ## Examples
 * [Skip Ahead](v0.2.0#AgVfq24KI2Ok2o8qVtPYj27fSuGnfeSKgbOkIOsaEQMov8TDYQ6UjdjwkZrYcM1i9alo4/+Bhm1PRFEa0YHJlJAk/PGoc2K41rejv9ZSqJqIHNjr7cappqhOR2jT+jk+0b0+U6hO+geRCTP2aufWs7L+f/Z27NFY8LKlqPSv+C6Rd6+ohoKi6sYl5Kcrlf1cyTinV7jTTnmbcXWVDBA5rRKxAGMUTDS8rHxqSztRITOaQVP1pSdYgi/BDdOJOxSOIkeaId84S+Ycls5na7EgwSfVIpgqF+tcfkUecb8t2mQrXA7pyKrh/wzHn5N6Oe5aOgmzY2YpTIct) (249 bytes): A port of my [TIC-80 256byte game](http://tic80.com/play?cart=1735) from LoveByte'21, now with sound
 * [Fireworks](v0.2.0#AgwvgP+M59snqjl4CMKw5sqm1Zw9yJCbSviMjeLUdHus2a3yl/a99+uiBeqZgP/2jqSjrLjRk73COMM6OSLpsxK8ugT1kuk/q4hQUqqPpGozHoa0laulzGGcahzdfdJsYaK1sIdeIYS9M5PnJx/Wk9H+PvWEPy2Zvv7I6IW7Fg==) (127 bytes): Some fireworks to welcome 2022.
@@ -29,23 +31,19 @@ Examplers for older versions:
 
 ## Versions
 
-### v0.2.0
+### v0.4.1
 
-* [Web runtime](v0.2.0)
+* [Web runtime](../v0.4.1)
-* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.0/microw8-0.2.0-linux.tgz)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-linux.tgz)
-* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.0/microw8-0.2.0-macos.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-macos.tgz)
-* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.0/microw8-0.2.0-windows.zip)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-windows.zip)
 
 Changes:
 
-* [add sound support!](docs#sound)
+* Windows: fix bad/inconsistent frame rate
-* add support to redirect text output to the console for debugging using control code 6
+* fix choppy sound on devices with sample rates != 44100 kHz
-* update curlywas:
+* add scale mode 'fill' option
-  * add support for `else if`
+
-  * add support for escape sequences in strings
-  * add support for char literals
-  * add support for binop-assignment, eg. `+=`, `^=`, `<<=` etc. (also support for the tee operator: `+:=`)
-  * "integer constant cast to float" literal syntax in CurlyWas (ex. `1_f` is equivalent to `1 as f32`)
 
 ### Older versions
 

site/content/docs.md

@@ -5,20 +5,23 @@ description = "Docs"
 
 # Overview
 
-MicroW8 loads WebAssembly modules with a maximum size of 256kb. You module needs to export
+MicroW8 loads WebAssembly modules with a maximum size of 256kb. Your module needs to export
 a function `fn upd()` which will be called once per frame.
 After calling `upd` MicroW8 will display the 320x240 8bpp framebuffer located
 at offset 120 in memory with the 32bpp palette located at 0x13000.
 
 The memory has to be imported as `env` `memory` and has a maximum size of 256kb (4 pages).
 
+If the module exports a function called `start`, it will be called once after the module is
+loaded.
+
 # Memory map
 
 ```
 00000-00040: user memory
 00040-00044: time since module start in ms
 00044-0004c: gamepad state
-0004c-00050: reserved
+0004c-00050: number of frames since module start
 00050-00070: sound data (synced to sound thread)
 00070-00078: reserved
 00078-12c78: frame buffer
@@ -143,13 +146,13 @@ Fills the circle at `cx, cy` and with `radius` with the given color index.
 
 (Sets all pixels where the pixel center lies inside the circle.)
 
-### fn rectangle_outline(x: f32, y: f32, w: f32, h: f32, color: i32)
+### fn rectangleOutline(x: f32, y: f32, w: f32, h: f32, color: i32)
 
 Draws a one pixel outline on the inside of the given rectangle.
 
 (Draws the outermost pixels that are still inside the rectangle area.)
 
-### fn circle_outline(cx: f32, cy: f32, radius: f32, color: i32)
+### fn circleOutline(cx: f32, cy: f32, radius: f32, color: i32)
 
 Draws a one pixel outline on the inside of the given circle.
 
@@ -159,6 +162,21 @@ Draws a one pixel outline on the inside of the given circle.
 
 Draws a line from `x1,y1` to `x2,y2` in the given color index.
 
+### fn blitSprite(spriteData: i32, size: i32, x: i32, y: i32, control: i32)
+
+Copies the pixel data at `spriteData` onto the screen at `x`, `y`. The size of the sprite is passed as `width | (height << 16)`.
+If the height is given as 0, the sprite is is treated as square (width x width).
+
+The control parameter controls masking and flipping of the sprite:
+* bits 0-7: color mask index
+* bit 8: switch on masked blit (pixel with color mask index are treated as transparent)
+* bit 9: flip sprite x
+* bit 10: flip sprite y
+
+### fn grabSprite(spriteData: i32, size: i32, x: i32, y: i32, control: i32)
+
+Copies the pixel data on the screen at `x`, `y` to `spriteData`. Parameters are exactly the same as `blitSprite`.
+
 ## Input
 
 MicroW8 provides input from a gamepad with one D-Pad and 4 buttons, or a keyboard emulation thereof.
@@ -220,6 +238,13 @@ When printing characters only the foreground pixels are set, the background is "
 
 Moving/printing past any border does not cause any special operation, the cursor just goes off-screen.
 
+### Text scale
+
+An integer text scale factor in the range 1x-16x can be set with control char 30. An attempt to
+set a scale outside that range will reset the scale to 1x.
+
+After startup and `cls` the scale is initialized to 1x.
+
 ### Control chars
 
 Characters 0-31 are control characters and don't print by default. They take the next 0-2 following characters as parameters.
@@ -244,7 +269,8 @@ Avoid the reserved control chars, they are currently NOPs but their behavior can
 | 15    | color      | Set the text color                         |
 | 16-23 | -          | Reserved                                   |
 | 24    | -          | Swap text/background colors                |
-| 25-30 | -          | Reserved                                   |
+| 25-29 | -          | Reserved                                   |
+| 30    | scale      | Set text scale (1-16)                      |
 | 31    | x, y       | Set cursor position (*)                    |
 
 (*) In graphics mode, the x coordinate is doubled when using control char 31 to be able to cover the whole screen with one byte.
@@ -253,7 +279,7 @@ Avoid the reserved control chars, they are currently NOPs but their behavior can
 
 Control code 6 switches all text output (except codes 4 and 5 to switch output back to the screen) to the console. Where exactly this ends
 up (if at all) is an implementation detail of the runtimes. The native dev-runtime writes the debug output to `stdout`, the web runtime to
-the debug console using `console.log`. Both implementation buffer the output until they encounter a newline character (10) in the output stream.
+the debug console using `console.log`. Both implementations buffer the output until they encounter a newline character (10) in the output stream.
 
 There may be future runtimes that ignore the debug output completely.
 
@@ -436,6 +462,31 @@ and execution of the cart is stopped. Defaults to 30 (0.5s)
 * `-l LEVEL`, `--level LEVEL`: Compression level (0-9). Higher compression levels are really slow.
 * `-o FILE`, `--output FILE`: Write the loaded and optionally packed cart back to disk.
 
+when using the native runtime:
+
+* `-m`, `--no-audio`: Disable audio, also reduces cpu load a bit
+* `--no-gpu`:  Force old cpu-only window code
+* `--filter FILTER`:  Select an upscale filter at startup
+* `--fullscreen`:  Start in fullscreen mode
+* `--scale-fill`:  Scale to fill whole screen, potentially cropping parts of the frame buffer.
+
+Note that the cpu-only window does not support fullscreen nor upscale filters.
+
+Unless --no-gpu is given, uw8 will first try to open a gpu accelerated window, falling back to the old cpu-only window if that fails.
+Therefore you should rarely need to manually pass --no-gpu. If you prefer the old pixel doubling look to the now default crt filter,
+you can just pass `--filter nearest` or `--filter 1`.
+
+The upscale filter options are:
+```
+1, nearest              : Anti-aliased nearest filter
+2, fast_crt             : Very simple, cheap crt filter, not very good below a window size of 960x720
+3, ss_crt               : Super sampled crt filter, a little more demanding on the GPU but scales well to smaller window sizes
+4, chromatic_crt        : Variant of fast_crt with a slight offset of the three color dots of a pixel, still pretty cheap
+5, auto_crt (default)   : ss_crt below 960x720, chromatic_crt otherwise
+```
+
+You can switch the upscale filter at any time using the keys 1-5. You can toggle fullscreen with F. You can toggle between scale modes 'fit' and 'fill' with M.
+
 ## `uw8 pack`
 
 Usage:
@@ -544,7 +595,7 @@ a base module provided by MicroW8.
 
 You can generate this base module yourself using
 `uw8-tool`. As a quick summary, it provides all function
-types with up to 5 parameters (i32 or f32) where the
+types with up to 7 parameters (i32 or f32) where the
 `f32` parameters always preceed the `i32` parameters.
 Then it includes all imports that MicroW8 provides,
 a function section with a single function of type

site/content/versions.md

@@ -2,9 +2,77 @@
 description = "Versions"
 +++
 
+### v0.4.1
+
+* [Web runtime](../v0.4.1)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.1/microw8-0.4.1-windows.zip)
+
+Changes:
+
+* Windows: fix bad/inconsistent frame rate
+* fix choppy sound on devices with sample rates != 44100 kHz
+* add scale mode 'fill' option
+
+### v0.4.0
+
+* [Web runtime](../v0.4.0)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.4.0/microw8-0.4.0-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.4.0/microw8-0.4.0-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.4.0/microw8-0.4.0-windows.zip)
+
+Changes:
+
+* add support for sound on mono- and surround-only devices
+* update wasmtime dependency to fix performance regression in 0.3.0
+* add frame counter since module start at location 72
+* add 6 and 7 parameter function types to base module
+
+### v0.3.0
+
+* [Web runtime](../v0.3.0)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.3.0/microw8-0.3.0-windows.zip)
+
+Changes:
+
+* add blitSprite and grabSprite API calls
+* add support for integer scaling up to 16x for printing text
+* fix incompatibility with sound devices only offering 16bit audio formats
+* add support for br_table instruction in packed carts
+
+### v0.2.2
+
+* [Web runtime](../v0.2.2)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.2/microw8-0.2.2-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.2/microw8-0.2.2-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.2/microw8-0.2.2-windows.zip)
+
+Changes:
+
+* call `start` function after loading cart if the cart exports one
+* fix `sndGes` having the wrong name and not being included in the auto imports
+* fix control codes 4-6 (change text output mode) being invoked when used as parameters in other control sequences
+* only open browser window once a cart was compiled sucessfully when running with `-b`
+
+### v0.2.1
+
+* [Web runtime](../v0.2.1)
+* [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.1/microw8-0.2.1-linux.tgz)
+* [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.1/microw8-0.2.1-macos.tgz)
+* [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.1/microw8-0.2.1-windows.zip)
+
+Changes:
+
+* new gpu accelerated renderer with (optional) crt filter
+* optimized `hline` function, a big speed-up when drawing large filled circles or rectangles
+* print fractional size of packed `uw8` cart
+
 ### v0.2.0
 
-* [Web runtime](v0.2.0)
+* [Web runtime](../v0.2.0)
 * [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.0/microw8-0.2.0-linux.tgz)
 * [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.0/microw8-0.2.0-macos.tgz)
 * [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.0/microw8-0.2.0-windows.zip)
@@ -22,7 +90,7 @@ Changes:
 
 ### v0.2.0-rc3
 
-* [Web runtime](v0.2.0-rc3)
+* [Web runtime](../v0.2.0-rc3)
 * [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc3/microw8-0.2.0-rc3-linux.tgz)
 * [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc3/microw8-0.2.0-rc3-macos.tgz)
 * [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc3/microw8-0.2.0-rc3-windows.zip)
@@ -40,7 +108,7 @@ Changes:
 
 ### v0.2.0-rc2
 
-* [Web runtime](v0.2.0-rc2)
+* [Web runtime](../v0.2.0-rc2)
 * [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc2/microw8-0.2.0-rc2-linux.tgz)
 * [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc2/microw8-0.2.0-rc2-macos.tgz)
 * [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc2/microw8-0.2.0-rc2-windows.zip)
@@ -51,7 +119,7 @@ Changes:
 
 ### v0.2.0-rc1
 
-* [Web runtime](v0.2.0-rc1)
+* [Web runtime](../v0.2.0-rc1)
 * [Linux](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc1/microw8-0.2.0-rc1-linux.tgz)
 * [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc1/microw8-0.2.0-rc1-macos.tgz)
 * [Windows](https://github.com/exoticorn/microw8/releases/download/v0.2.0-rc1/microw8-0.2.0-rc1-windows.zip)
@@ -67,7 +135,7 @@ Known issues:
 
 ### v0.1.2
 
-* [Web runtime](v0.1.2)
+* [Web runtime](../v0.1.2)
 * [Linux](https://github.com/exoticorn/microw8/releases/download/v0.1.2/microw8-0.1.2-linux.tgz)
 * [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.1.2/microw8-0.1.2-macos.tgz)
 * [Windows](https://github.com/exoticorn/microw8/releases/download/v0.1.2/microw8-0.1.2-windows.zip)
@@ -75,13 +143,13 @@ Known issues:
 Changes:
 
 * add option to `uw8 run` to run the cart in the browser using the web runtime
-* CurlyWas: implement `include` support
+*../ CurlyWas: implement `include` support
 * CurlyWas: implement support for constants
 * fix crash when trying to draw zero sized line
 
 ### v0.1.1
 
-* [Web runtime](v0.1.1)
+* [Web runtime](../v0.1.1)
 * [Linux](https://github.com/exoticorn/microw8/releases/download/v0.1.1/microw8-0.1.1-linux.tgz)
 * [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.1.1/microw8-0.1.1-macos.tgz)
 * [Windows](https://github.com/exoticorn/microw8/releases/download/v0.1.1/microw8-0.1.1-windows.zip)
@@ -90,16 +158,16 @@ Changes:
 
 * implement more robust file watcher
 * add basic video recording on F10 in web runtime
-* add screenshot on F9
+*../ add screenshot on F9
 * add watchdog to interrupt hanging update in native runtime
 * add devkit mode to web runtime
-* add unpack and compile commands to uw8
+*../ add unpack and compile commands to uw8
 * add support for table/element section in pack command
 * disable wayland support (caused missing window decorations in gnome)
 
 ### v0.1.0
 
-* [Web runtime](v0.1.0)
+* [Web runtime](../v0.1.0)
 * [Linux](https://github.com/exoticorn/microw8/releases/download/v0.1.0/microw8-0.1.0-linux.tgz)
 * [MacOS](https://github.com/exoticorn/microw8/releases/download/v0.1.0/microw8-0.1.0-macos.tgz)
 * [Windows](https://github.com/exoticorn/microw8/releases/download/v0.1.0/microw8-0.1.0-windows.zip)

site/templates/index.html

@@ -4,7 +4,7 @@
         <section>
             <h1 class="text-center heading-text">A WebAssembly based fantasy console</h1>
         </section>
-        <a href="v0.2.0">
+        <a href="v0.4.1">
             <img class="demonstration-gif" style="width:640px;height:480px;image-rendering:pixelated" src="img/technotunnel.png"></img>
         </a>
     </div>

src/filewatcher.rs

@@ -1,9 +1,13 @@
 use anyhow::{anyhow, bail, Result};
-use notify::{DebouncedEvent, RecommendedWatcher, Watcher};
+use notify_debouncer_mini::{
+    new_debouncer,
+    notify::{self, RecommendedWatcher},
+    DebouncedEvent, DebouncedEventKind, Debouncer,
+};
 use std::{collections::BTreeSet, path::PathBuf, sync::mpsc, time::Duration};
 
 pub struct FileWatcher {
-    watcher: RecommendedWatcher,
+    debouncer: Debouncer<RecommendedWatcher>,
     watched_files: BTreeSet<PathBuf>,
     directories: BTreeSet<PathBuf>,
     rx: mpsc::Receiver<DebouncedEvent>,
@@ -12,9 +16,18 @@ pub struct FileWatcher {
 impl FileWatcher {
     pub fn new() -> Result<FileWatcher> {
         let (tx, rx) = mpsc::channel();
-        let watcher = notify::watcher(tx, Duration::from_millis(100))?;
+        let debouncer = new_debouncer(Duration::from_millis(100), move |res| match res {
+            Ok(events) => {
+                for event in events {
+                    let _ = tx.send(event);
+                }
+            }
+            Err(err) => {
+                eprintln!("Error watching for file changes: {err}");
+            }
+        })?;
         Ok(FileWatcher {
-            watcher,
+            debouncer,
             watched_files: BTreeSet::new(),
             directories: BTreeSet::new(),
             rx,
@@ -26,7 +39,8 @@ impl FileWatcher {
         let parent = path.parent().ok_or_else(|| anyhow!("File has no parent"))?;
 
         if !self.directories.contains(parent) {
-            self.watcher
+            self.debouncer
+                .watcher()
                 .watch(parent, notify::RecursiveMode::NonRecursive)?;
             self.directories.insert(parent.to_path_buf());
         }
@@ -36,16 +50,18 @@ impl FileWatcher {
     }
 
     pub fn poll_changed_file(&self) -> Result<Option<PathBuf>> {
-        let event = self.rx.try_recv();
+        match self.rx.try_recv() {
-        match event {
+            Ok(event) => match event.kind {
-            Ok(DebouncedEvent::Create(path) | DebouncedEvent::Write(path)) => {
+                DebouncedEventKind::Any => {
-                let handle = same_file::Handle::from_path(&path)?;
+                    let handle = same_file::Handle::from_path(&event.path)?;
                     for file in &self.watched_files {
                         if handle == same_file::Handle::from_path(file)? {
-                        return Ok(Some(path));
+                            return Ok(Some(event.path));
                         }
                     }
                 }
+                _ => (),
+            },
             Err(mpsc::TryRecvError::Disconnected) => bail!("File watcher disconnected"),
             _ => (),
         }

src/main.rs

@@ -13,6 +13,7 @@ use uw8::RunWebServer;
 use uw8::Runtime;
 
 fn main() -> Result<()> {
+    env_logger::Builder::from_env(env_logger::Env::default()).init();
     let mut args = Arguments::from_env();
 
     // try to enable ansi support in win10 cmd shell
@@ -35,7 +36,7 @@ fn main() -> Result<()> {
             println!();
             println!("Usage:");
             #[cfg(any(feature = "native", feature = "browser"))]
-            println!("  uw8 run [-t/--timeout <frames>] [--no-gpu] [--b/--browser] [-w/--watch] [-p/--pack] [-u/--uncompressed] [-l/--level] [-o/--output <out-file>] <file>");
+            println!("  uw8 run [-t/--timeout <frames>] [--b/--browser] [-w/--watch] [-p/--pack] [-u/--uncompressed] [-l/--level] [-o/--output <out-file>] <file>");
             println!("  uw8 pack [-u/--uncompressed] [-l/--level] <in-file> <out-file>");
             println!("  uw8 unpack <in-file> <out-file>");
             println!("  uw8 compile [-d/--debug] <in-file> <out-file>");
@@ -54,8 +55,6 @@ fn run(mut args: Arguments) -> Result<()> {
     let watch_mode = args.contains(["-w", "--watch"]);
     #[allow(unused)]
     let timeout: Option<u32> = args.opt_value_from_str(["-t", "--timeout"])?;
-    #[allow(unused)]
-    let gpu = !args.contains("--no-gpu");
 
     let mut config = Config::default();
     if args.contains(["-p", "--pack"]) {
@@ -82,7 +81,17 @@ fn run(mut args: Arguments) -> Result<()> {
     #[cfg(not(feature = "native"))]
     let run_browser = args.contains(["-b", "--browser"]) || true;
 
-    let disable_audio = args.contains(["-m", "--disable-audio"]);
+    #[allow(unused)]
+    let disable_audio = args.contains(["-m", "--no-audio"]);
+
+    #[cfg(feature = "native")]
+    let window_config = {
+        let mut config = uw8_window::WindowConfig::default();
+        if !run_browser {
+            config.parse_arguments(&mut args);
+        }
+        config
+    };
 
     let filename = args.free_from_os_str::<PathBuf, bool>(|s| Ok(s.into()))?;
 
@@ -95,7 +104,7 @@ fn run(mut args: Arguments) -> Result<()> {
         unimplemented!();
         #[cfg(feature = "native")]
         {
-            let mut microw8 = MicroW8::new(timeout, gpu)?;
+            let mut microw8 = MicroW8::new(timeout, window_config)?;
             if disable_audio {
                 microw8.disable_audio();
             }
@@ -167,7 +176,8 @@ fn load_cart(filename: &Path, config: &Config) -> (Result<Vec<u8>>, Vec<PathBuf>
         if let Some(ref pack_config) = config.pack {
             cart = uw8_tool::pack(&cart, pack_config)?;
             println!(
-                "\npacked size: {:.2} bytes",
+                "\npacked size: {} bytes ({:.2})",
+                cart.len(),
                 uw8_tool::compressed_size(&cart)
             );
         }

src/run_native.rs

@@ -2,26 +2,23 @@ use std::sync::{mpsc, Arc, Mutex};
 use std::time::Duration;
 use std::{thread, time::Instant};
 
-use anyhow::{anyhow, Result};
+use anyhow::{anyhow, bail, Result};
 use cpal::traits::*;
 use rubato::Resampler;
+use uw8_window::{Window, WindowConfig};
 use wasmtime::{
-    Engine, GlobalType, Memory, MemoryType, Module, Mutability, Store, TypedFunc, ValType,
+    Engine, Func, GlobalType, Memory, MemoryType, Module, Mutability, Store, TypedFunc, ValType,
 };
 
 pub struct MicroW8 {
-    tx: mpsc::SyncSender<Option<UW8Instance>>,
+    window: Window,
-    rx: mpsc::Receiver<UIEvent>,
     stream: Option<cpal::Stream>,
     engine: Engine,
     loader_module: Module,
     disable_audio: bool,
     module_data: Option<Vec<u8>>,
-}
+    timeout: u32,
-
+    instance: Option<UW8Instance>,
-enum UIEvent {
-    Error(Result<()>),
-    Reset,
 }
 
 struct UW8Instance {
@@ -30,6 +27,7 @@ struct UW8Instance {
     end_frame: TypedFunc<(), ()>,
     update: Option<TypedFunc<(), ()>>,
     start_time: Instant,
+    frame_counter: u32,
     watchdog: Arc<Mutex<UW8WatchDog>>,
     sound_tx: Option<mpsc::SyncSender<RegisterUpdate>>,
 }
@@ -48,7 +46,7 @@ struct UW8WatchDog {
 }
 
 impl MicroW8 {
-    pub fn new(timeout: Option<u32>, gpu: bool) -> Result<MicroW8> {
+    pub fn new(timeout: Option<u32>, window_config: WindowConfig) -> Result<MicroW8> {
         let mut config = wasmtime::Config::new();
         config.cranelift_opt_level(wasmtime::OptLevel::Speed);
         if timeout.is_some() {
@@ -59,39 +57,17 @@ impl MicroW8 {
         let loader_module =
             wasmtime::Module::new(&engine, include_bytes!("../platform/bin/loader.wasm"))?;
 
-        let (to_ui_tx, to_ui_rx) = mpsc::sync_channel(2);
+        let window = Window::new(window_config)?;
-        let (from_ui_tx, from_ui_rx) = mpsc::sync_channel(1);
-
-        std::thread::spawn(move || {
-            let mut state = State {
-                instance: None,
-                timeout: timeout.unwrap_or(0),
-            };
-
-            uw8_window::run(gpu, move |framebuffer, gamepad, reset| {
-                while let Ok(instance) = to_ui_rx.try_recv() {
-                    state.instance = instance;
-                }
-
-                if reset {
-                    from_ui_tx.send(UIEvent::Reset).unwrap();
-                }
-
-                state.run_frame(framebuffer, gamepad).unwrap_or_else(|err| {
-                    from_ui_tx.send(UIEvent::Error(Err(err))).unwrap();
-                    Instant::now()
-                })
-            });
-        });
 
         Ok(MicroW8 {
-            tx: to_ui_tx,
+            window,
-            rx: from_ui_rx,
             stream: None,
             engine,
             loader_module,
             disable_audio: false,
             module_data: None,
+            timeout: timeout.unwrap_or(0),
+            instance: None,
         })
     }
 
@@ -102,12 +78,12 @@ impl MicroW8 {
 
 impl super::Runtime for MicroW8 {
     fn is_open(&self) -> bool {
-        true
+        self.window.is_open()
     }
 
     fn load(&mut self, module_data: &[u8]) -> Result<()> {
         self.stream = None;
-        self.tx.send(None)?;
+        self.instance = None;
 
         let mut store = wasmtime::Store::new(&self.engine, ());
         store.set_epoch_deadline(60);
@@ -115,10 +91,10 @@ impl super::Runtime for MicroW8 {
         let memory = wasmtime::Memory::new(&mut store, MemoryType::new(4, Some(4)))?;
 
         let mut linker = wasmtime::Linker::new(&self.engine);
-        linker.define("env", "memory", memory)?;
+        linker.define(&store, "env", "memory", memory)?;
 
         let loader_instance = linker.instantiate(&mut store, &self.loader_module)?;
-        let load_uw8 = loader_instance.get_typed_func::<i32, i32, _>(&mut store, "load_uw8")?;
+        let load_uw8 = loader_instance.get_typed_func::<i32, i32>(&mut store, "load_uw8")?;
 
         let platform_data = include_bytes!("../platform/bin/platform.uw8");
         memory.data_mut(&mut store)[..platform_data.len()].copy_from_slice(platform_data);
@@ -156,8 +132,12 @@ impl super::Runtime for MicroW8 {
         }
 
         let instance = linker.instantiate(&mut store, &module)?;
-        let end_frame = platform_instance.get_typed_func::<(), (), _>(&mut store, "endFrame")?;
+        let end_frame = platform_instance.get_typed_func::<(), ()>(&mut store, "endFrame")?;
-        let update = instance.get_typed_func::<(), (), _>(&mut store, "upd").ok();
+        let update = instance.get_typed_func::<(), ()>(&mut store, "upd").ok();
+
+        if let Some(start) = instance.get_typed_func::<(), ()>(&mut store, "start").ok() {
+            start.call(&mut store, ())?;
+        }
 
         let (sound_tx, stream) = if self.disable_audio {
             (None, None)
@@ -174,66 +154,50 @@ impl super::Runtime for MicroW8 {
             }
         };
 
-        self.tx.send(Some(UW8Instance {
+        self.instance = Some(UW8Instance {
             store,
             memory,
             end_frame,
             update,
             start_time: Instant::now(),
+            frame_counter: 0,
             watchdog,
             sound_tx,
-        }))?;
+        });
         self.stream = stream;
         self.module_data = Some(module_data.into());
         Ok(())
     }
 
     fn run_frame(&mut self) -> Result<()> {
-        if let Ok(event) = self.rx.try_recv() {
+        let input = self.window.begin_frame();
-            match event {
+
-                UIEvent::Error(err) => err,
+        if input.reset {
-                UIEvent::Reset => {
             if let Some(module_data) = self.module_data.take() {
-                        self.load(&module_data)
+                self.load(&module_data)?;
-                    } else {
-                        Ok(())
-                    }
-                }
-            }
-        } else {
-            Ok(())
-        }
             }
         }
 
-struct State {
-    instance: Option<UW8Instance>,
-    timeout: u32,
-}
-
-impl State {
-    fn run_frame(
-        &mut self,
-        framebuffer: &mut dyn uw8_window::Framebuffer,
-        gamepad: u32,
-    ) -> Result<Instant> {
         let now = Instant::now();
-        let mut result = Ok(now);
+        let mut result = Ok(());
         if let Some(mut instance) = self.instance.take() {
             let time = (now - instance.start_time).as_millis() as i32;
-            {
+            let next_frame = {
                 let offset = ((time as u32 as i64 * 6) % 100 - 50) / 6;
                 let max = now + Duration::from_millis(17);
                 let next_center = now + Duration::from_millis((16 - offset) as u64);
-                result = Ok(next_center.min(max));
+                next_center.min(max)
-            }
+            };
 
             {
                 let mem = instance.memory.data_mut(&mut instance.store);
                 mem[64..68].copy_from_slice(&time.to_le_bytes());
-                mem[68..72].copy_from_slice(&gamepad.to_le_bytes());
+                mem[68..72].copy_from_slice(&input.gamepads);
+                mem[72..76].copy_from_slice(&instance.frame_counter.to_le_bytes());
             }
 
+            instance.frame_counter = instance.frame_counter.wrapping_add(1);
+
             instance.store.set_epoch_deadline(self.timeout as u64);
             if let Some(ref update) = instance.update {
                 if let Err(err) = update.call(&mut instance.store, ()) {
@@ -255,14 +219,16 @@ impl State {
 
             let framebuffer_mem = &memory[120..(120 + 320 * 240)];
             let palette_mem = &memory[0x13000..];
-            framebuffer.update(framebuffer_mem, palette_mem);
+            self.window
+                .end_frame(framebuffer_mem, palette_mem, next_frame);
 
             if result.is_ok() {
                 self.instance = Some(instance);
             }
         }
 
-        Ok(result?)
+        result?;
+        Ok(())
     }
 }
 
@@ -294,15 +260,12 @@ fn add_native_functions(
         }
     })?;
     for i in 0..16 {
-        linker.define(
+        let global = wasmtime::Global::new(
-            "env",
-            &format!("g_reserved{}", i),
-            wasmtime::Global::new(
             &mut *store,
             GlobalType::new(ValType::I32, Mutability::Const),
             0.into(),
-            )?,
         )?;
+        linker.define(&store, "env", &format!("g_reserved{}", i), global)?;
     }
 
     Ok(())
@@ -315,14 +278,18 @@ fn instantiate_platform(
 ) -> Result<wasmtime::Instance> {
     let platform_instance = linker.instantiate(&mut *store, &platform_module)?;
 
-    for export in platform_instance.exports(&mut *store) {
+    let exports: Vec<(String, Func)> = platform_instance
-        linker.define(
+        .exports(&mut *store)
-            "env",
+        .map(|e| {
-            export.name(),
+            (
-            export
+                e.name().to_owned(),
-                .into_func()
+                e.into_func()
                     .expect("platform surely only exports functions"),
-        )?;
+            )
+        })
+        .collect();
+    for (name, func) in exports {
+        linker.define(&store, "env", &name, func)?;
     }
 
     Ok(platform_instance)
@@ -349,15 +316,15 @@ fn init_sound(
     let memory = wasmtime::Memory::new(&mut store, MemoryType::new(4, Some(4)))?;
 
     let mut linker = wasmtime::Linker::new(engine);
-    linker.define("env", "memory", memory)?;
+    linker.define(&store, "env", "memory", memory)?;
     add_native_functions(&mut linker, &mut store)?;
 
     let platform_instance = instantiate_platform(&mut linker, &mut store, platform_module)?;
     let instance = linker.instantiate(&mut store, module)?;
 
     let snd = instance
-        .get_typed_func::<(i32,), f32, _>(&mut store, "snd")
+        .get_typed_func::<(i32,), f32>(&mut store, "snd")
-        .or_else(|_| platform_instance.get_typed_func::<(i32,), f32, _>(&mut store, "gesSnd"))?;
+        .or_else(|_| platform_instance.get_typed_func::<(i32,), f32>(&mut store, "sndGes"))?;
 
     let host = cpal::default_host();
     let device = host
@@ -366,26 +333,40 @@ fn init_sound(
     let mut configs: Vec<_> = device
         .supported_output_configs()?
         .filter(|config| {
-            config.channels() == 2 && config.sample_format() == cpal::SampleFormat::F32
+            config.sample_format() == cpal::SampleFormat::F32
+                || config.sample_format() == cpal::SampleFormat::I16
         })
         .collect();
+
+    if configs.is_empty() {
+        eprintln!(
+            "No suitable audio output config found on device \"{}\", available configs:",
+            device.name()?
+        );
+        for config in device.supported_output_configs()? {
+            eprintln!("  {}ch {}", config.channels(), config.sample_format());
+        }
+        bail!("Failed to configure audio out");
+    }
+
     configs.sort_by_key(|config| {
         let rate = 44100
             .max(config.min_sample_rate().0)
             .min(config.max_sample_rate().0);
-        if rate >= 44100 {
+        let rate_prio = if rate >= 44100 {
             rate - 44100
         } else {
             (44100 - rate) * 1000
-        }
+        };
+        let format_prio = (config.sample_format() == cpal::SampleFormat::I16) as u32;
+        let channels_prio = (config.channels() != 2) as u32 * 16777216;
+        rate_prio + format_prio + channels_prio
     });
-    let config = configs
+    let config = configs.into_iter().next().unwrap();
-        .into_iter()
+
-        .next()
-        .ok_or_else(|| anyhow!("Could not find float output config"))?;
     let sample_rate = cpal::SampleRate(44100)
         .max(config.min_sample_rate())
-        .max(config.max_sample_rate());
+        .min(config.max_sample_rate());
     let config = config.with_sample_rate(sample_rate);
     let buffer_size = match *config.buffer_size() {
         cpal::SupportedBufferSize::Unknown => cpal::BufferSize::Default,
@@ -393,6 +374,8 @@ fn init_sound(
             cpal::BufferSize::Fixed(256.max(min).min(max))
         }
     };
+    let sample_format = config.sample_format();
+    let num_channels = config.channels();
     let config = cpal::StreamConfig {
         buffer_size,
         ..config.config()
@@ -425,9 +408,8 @@ fn init_sound(
     let mut sample_index = 0;
     let mut pending_updates: Vec<RegisterUpdate> = Vec::with_capacity(30);
     let mut current_time = 0;
-    let stream = device.build_output_stream(
+
-        &config,
+    let mut callback = move |mut outer_buffer: &mut [f32]| {
-        move |mut outer_buffer: &mut [f32], _| {
         let mut first_update = true;
         while let Ok(update) = rx.try_recv() {
             if first_update {
@@ -462,6 +444,14 @@ fn init_sound(
                 mem[64..68].copy_from_slice(&current_time.to_le_bytes());
             }
 
+            fn clamp_sample(s: f32) -> f32 {
+                if s.is_nan() {
+                    0.0
+                } else {
+                    s.max(-1.0).min(1.0)
+                }
+            }
+
             if let Some(ref mut resampler) = resampler {
                 while !buffer.is_empty() {
                     let copy_size = resampler.output_buffers[0]
@@ -472,10 +462,12 @@ fn init_sound(
                         resampler.input_buffers[0].clear();
                         resampler.input_buffers[1].clear();
                         for _ in 0..resampler.resampler.input_frames_next() {
-                                resampler.input_buffers[0]
+                            resampler.input_buffers[0].push(clamp_sample(
-                                    .push(snd.call(&mut store, (sample_index,)).unwrap_or(0.0));
+                                snd.call(&mut store, (sample_index,)).unwrap_or(0.0),
-                                resampler.input_buffers[1]
+                            ));
-                                    .push(snd.call(&mut store, (sample_index + 1,)).unwrap_or(0.0));
+                            resampler.input_buffers[1].push(clamp_sample(
+                                snd.call(&mut store, (sample_index + 1,)).unwrap_or(0.0),
+                            ));
                             sample_index = sample_index.wrapping_add(2);
                         }
 
@@ -490,8 +482,7 @@ fn init_sound(
                         resampler.output_index = 0;
                     } else {
                         for i in 0..copy_size {
-                                buffer[i * 2] =
+                            buffer[i * 2] = resampler.output_buffers[0][resampler.output_index + i];
-                                    resampler.output_buffers[0][resampler.output_index + i];
                             buffer[i * 2 + 1] =
                                 resampler.output_buffers[1][resampler.output_index + i];
                         }
@@ -501,20 +492,136 @@ fn init_sound(
                 }
             } else {
                 for v in buffer {
-                        *v = snd.call(&mut store, (sample_index,)).unwrap_or(0.0);
+                    *v = clamp_sample(snd.call(&mut store, (sample_index,)).unwrap_or(0.0));
                     sample_index = sample_index.wrapping_add(1);
                 }
             }
 
             outer_buffer = &mut outer_buffer[step_size..];
-                current_time =
+            current_time = current_time.wrapping_add((step_size * 500 / sample_rate).max(1) as i32);
-                    current_time.wrapping_add((step_size * 500 / sample_rate).max(1) as i32);
         }
+    };
+
+    fn f32_to_i16<F>(mut buffer: &mut [i16], callback: &mut F)
+    where
+        F: FnMut(&mut [f32]),
+    {
+        let mut float_buffer = [0f32; 256];
+
+        while !buffer.is_empty() {
+            let step_size = buffer.len().min(float_buffer.len());
+            let step_buffer = &mut float_buffer[..step_size];
+            callback(step_buffer);
+            for (dest, src) in buffer.iter_mut().take(step_size).zip(step_buffer.iter()) {
+                *dest = (src.max(-1.0).min(1.0) * 32767.0) as i16;
+            }
+            buffer = &mut buffer[step_size..];
+        }
+    }
+
+    fn stereo_to_mono<F>(mut buffer: &mut [f32], callback: &mut F)
+    where
+        F: FnMut(&mut [f32]),
+    {
+        let mut in_buffer = [0f32; 256];
+
+        while !buffer.is_empty() {
+            let step_size = buffer.len().min(in_buffer.len() / 2);
+            let step_buffer = &mut in_buffer[..step_size * 2];
+            callback(step_buffer);
+            for (index, dest) in buffer.iter_mut().take(step_size).enumerate() {
+                *dest = (step_buffer[index * 2] + step_buffer[index * 2 + 1]) * 0.5;
+            }
+            buffer = &mut buffer[step_size..];
+        }
+    }
+
+    fn stereo_to_surround<F>(mut buffer: &mut [f32], num_channels: usize, callback: &mut F)
+    where
+        F: FnMut(&mut [f32]),
+    {
+        let mut in_buffer = [0f32; 256];
+        buffer.fill(0.);
+
+        while !buffer.is_empty() {
+            let step_size = (buffer.len() / num_channels).min(in_buffer.len() / 2);
+            let step_buffer = &mut in_buffer[..step_size * 2];
+            callback(step_buffer);
+            for index in 0..step_size {
+                buffer[index * num_channels + 0] = step_buffer[index * 2 + 0];
+                buffer[index * num_channels + 1] = step_buffer[index * 2 + 1];
+            }
+            buffer = &mut buffer[step_size * num_channels..];
+        }
+    }
+
+    let stream = if sample_format == cpal::SampleFormat::F32 {
+        if num_channels == 2 {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [f32], _| callback(buffer),
+                move |err| {
+                    dbg!(err);
+                },
+                None,
+            )?
+        } else if num_channels == 1 {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [f32], _| stereo_to_mono(buffer, &mut callback),
+                move |err| {
+                    dbg!(err);
+                },
+                None,
+            )?
+        } else {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [f32], _| {
+                    stereo_to_surround(buffer, num_channels as usize, &mut callback)
                 },
                 move |err| {
                     dbg!(err);
                 },
-    )?;
+                None,
+            )?
+        }
+    } else {
+        if num_channels == 2 {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [i16], _| f32_to_i16(buffer, &mut callback),
+                move |err| {
+                    dbg!(err);
+                },
+                None,
+            )?
+        } else if num_channels == 1 {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [i16], _| {
+                    f32_to_i16(buffer, &mut |b| stereo_to_mono(b, &mut callback))
+                },
+                move |err| {
+                    dbg!(err);
+                },
+                None,
+            )?
+        } else {
+            device.build_output_stream(
+                &config,
+                move |buffer: &mut [i16], _| {
+                    f32_to_i16(buffer, &mut |b| {
+                        stereo_to_surround(b, num_channels as usize, &mut callback)
+                    })
+                },
+                move |err| {
+                    dbg!(err);
+                },
+                None,
+            )?
+        }
+    };
 
     Ok(Uw8Sound { stream, tx })
 }

src/run_web.rs

@@ -11,6 +11,7 @@ use warp::{http::Response, Filter};
 pub struct RunWebServer {
     cart: Arc<Mutex<Vec<u8>>>,
     tx: broadcast::Sender<()>,
+    socket_addr: SocketAddr,
 }
 
 impl RunWebServer {
@@ -18,8 +19,13 @@ impl RunWebServer {
         let cart = Arc::new(Mutex::new(Vec::new()));
         let (tx, _) = broadcast::channel(1);
 
+        let socket_addr = "127.0.0.1:3030"
+            .parse::<SocketAddr>()
+            .expect("Failed to parse socket address");
+
         let server_cart = cart.clone();
         let server_tx = tx.clone();
+        let server_addr = socket_addr.clone();
         thread::spawn(move || {
             let rt = tokio::runtime::Builder::new_current_thread()
                 .enable_io()
@@ -47,24 +53,26 @@ impl RunWebServer {
                     warp::sse::reply(warp::sse::keep_alive().stream(event_stream(&server_tx)))
                 });
 
-                let socket_addr = "127.0.0.1:3030"
+                let server_future = warp::serve(html.or(cart).or(events)).bind(server_addr);
-                    .parse::<SocketAddr>()
-                    .expect("Failed to parse socket address");
-
-                let server_future = warp::serve(html.or(cart).or(events)).bind(socket_addr);
-                println!("Point browser at http://{}", socket_addr);
-                let _ignore_result = webbrowser::open(&format!("http://{}", socket_addr));
                 server_future.await
             });
         });
 
-        RunWebServer { cart, tx }
+        RunWebServer {
+            cart,
+            tx,
+            socket_addr,
+        }
     }
 }
 
 impl super::Runtime for RunWebServer {
     fn load(&mut self, module_data: &[u8]) -> Result<()> {
         if let Ok(mut lock) = self.cart.lock() {
+            if lock.is_empty() && !module_data.is_empty() {
+                println!("Point browser at http://{}", self.socket_addr);
+                let _ignore_result = webbrowser::open(&format!("http://{}", self.socket_addr));
+            }
             lock.clear();
             lock.extend_from_slice(module_data);
         }

test.cwa

@@ -1,13 +0,0 @@
-import "env.memory" memory(4);
-import "env.printString" fn print(i32);
-
-export fn upd() {
-}
-
-start fn start() {
-    print(0);
-}
-
-data 0 {
-    "Press " i8(0xe0) " and " i8(0xe1) " to adjust, " i8(0xcc) " to commit." i8(0)
-}

test/ges_test.cwa

@@ -2,17 +2,18 @@ import "env.memory" memory(4);
 import "env.pow" fn pow(f32, f32) -> f32;
 import "env.sin" fn sin(f32) -> f32;
 import "env.cls" fn cls(i32);
+import "env.exp" fn exp(f32) -> f32;
 import "env.rectangle" fn rectangle(f32, f32, f32, f32, i32);
 
 include "../platform/src/ges.cwa"
 
 export fn snd(t: i32) -> f32 {
-    gesSnd(t)
+    sndGes(t)
 }
 
 export fn upd() {
     80?0 = 32!32 / 200 & 2 | 0x41;
-    80?3 = (32!32 / 400)%7*12/7 + 40;
+    80?3 = (32!32 / 400)%8*12/7 + 40;
     let pulse = (32!32 * 256 / 2000) & 511;
     if pulse >= 256 {
         pulse = 511 - pulse;

test/start_fn.cwa

@@ -0,0 +1,5 @@
+include "../examples/include/microw8-api.cwa"
+
+export fn start() {
+	printChar('Test');
+}

test/text_modes.cwa

@@ -0,0 +1,13 @@
+include "../examples/include/microw8-api.cwa"
+
+export fn upd() {
+	printString(USER_MEM);
+}
+
+data USER_MEM {
+	i8(12, 31, 5, 6) "Text mode"
+	i8(5, 31, 4, 5) "Graphics mode"
+	i8(6) "Console output\nSecond line\n"
+	i8(4, 31, 4, 12) "Back to text mode"
+	i8(0)
+}

todo.txt

@@ -0,0 +1 @@
+* add support for 16bit sound (not just float)

uw8-tool/Cargo.lock

@@ -4,21 +4,27 @@ version = 3
 
 [[package]]
 name = "anyhow"
-version = "1.0.52"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84450d0b4a8bd1ba4144ce8ce718fbc5d071358b1e5384bace6536b3d1f2d5b3"
+checksum = "0952808a6c2afd1aa8947271f3a60f1a6763c7b912d210184c5149b5cf147247"
 
 [[package]]
 name = "autocfg"
-version = "1.0.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
+checksum = "f1fdabc7756949593fe60f30ec81974b613357de856987752631dea1e3394c80"
+
+[[package]]
+name = "bitflags"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1"
 
 [[package]]
 name = "cc"
-version = "1.0.72"
+version = "1.0.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22a9137b95ea06864e018375b72adfb7db6e6f68cfc8df5a04d00288050485ee"
+checksum = "2678b2e3449475e95b0aa6f9b506a28e61b3dc8996592b983695e8ebb58a8b41"
 
 [[package]]
 name = "cdivsufsort"
@@ -30,32 +36,56 @@ dependencies = [
  "sacabase",
 ]
 
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
-
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.1"
+version = "0.5.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
+checksum = "ab3db02a9c5b5121e1e42fbdb1aeb65f5e02624cc58c43f2884c6ccac0b82f95"
 dependencies = [
- "cfg-if",
  "crossbeam-utils",
 ]
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.5"
+version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
+checksum = "248e3bacc7dc6baa3b21e405ee045c3047101a49145e7e9eca583ab4c2ca5345"
+
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
+[[package]]
+name = "fallible-iterator"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
+
+[[package]]
+name = "gimli"
+version = "0.26.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d"
 dependencies = [
- "cfg-if",
+ "fallible-iterator",
- "lazy_static",
+ "indexmap 1.9.3",
+ "stable_deref_trait",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+
+[[package]]
+name = "hashbrown"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
+
 [[package]]
 name = "heck"
 version = "0.3.3"
@@ -72,10 +102,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "25a2bc672d1148e28034f176e01fffebb08b35768468cc954630da77a1449005"
 
 [[package]]
-name = "lazy_static"
+name = "indexmap"
-version = "1.4.0"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
+dependencies = [
+ "autocfg",
+ "hashbrown 0.12.3",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
+dependencies = [
+ "equivalent",
+ "hashbrown 0.14.3",
+]
 
 [[package]]
 name = "leb128"
@@ -84,61 +128,63 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
 
 [[package]]
-name = "libc"
+name = "lexopt"
-version = "0.2.112"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"
+checksum = "478ee9e62aaeaf5b140bd4138753d1f109765488581444218d3ddda43234f3e8"
+
+[[package]]
+name = "libc"
+version = "0.2.153"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "log"
-version = "0.4.14"
+version = "0.4.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
+checksum = "90ed8c1e510134f979dbc4f070f87d4313098b704861a105fe34231c70a3901c"
-dependencies = [
- "cfg-if",
-]
 
 [[package]]
 name = "num-traits"
-version = "0.2.14"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+checksum = "da0df0e5185db44f69b44f26786fe401b6c293d1907744beaa7fa62b2e5a517a"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "pbr"
-version = "1.0.4"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ff5751d87f7c00ae6403eb1fcbba229b9c76c9a30de8c1cf87182177b168cea2"
+checksum = "ed5827dfa0d69b6c92493d6c38e633bbaa5937c153d0d7c28bf12313f8c6d514"
 dependencies = [
  "crossbeam-channel",
  "libc",
- "time",
  "winapi",
 ]
 
 [[package]]
 name = "pico-args"
-version = "0.4.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db8bcd96cb740d03149cbad5518db9fd87126a10ab519c011893b1754134c468"
+checksum = "5be167a7af36ee22fe3115051bc51f6e6c7054c9348e28deb4f49bd6f705a315"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.36"
+version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
+checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.14"
+version = "1.0.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47aa80447ce4daf1717500037052af176af5d38cc3e571d9ec1c7353fc10c87d"
+checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
 dependencies = [
  "proc-macro2",
 ]
@@ -153,48 +199,80 @@ dependencies = [
 ]
 
 [[package]]
-name = "syn"
+name = "semver"
-version = "1.0.84"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecb2e6da8ee5eb9a61068762a32fa9619cc591ceb055b3687f4cd4051ec2e06b"
+checksum = "92d43fe69e652f3df9bdc2b85b2854a0825b86e4fb76bc44d945137d053639ca"
+
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
-name = "time"
+name = "syn"
-version = "0.1.44"
+version = "2.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
+checksum = "44cfb93f38070beee36b3fef7d4f5a16f27751d94b187b666a5cc5e9b0d30687"
 dependencies = [
- "libc",
+ "proc-macro2",
- "wasi",
+ "quote",
- "winapi",
+ "unicode-ident",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03468839009160513471e86a034bb2c5c0e4baae3b43f79ffc55c4a5427b3297"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61f3ba182994efc43764a46c018c347bc492c79f024e705f46567b418f6d4f7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.58",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+
 [[package]]
 name = "unicode-segmentation"
-version = "1.8.0"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b"
+checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
-
-[[package]]
-name = "unicode-xid"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
 [[package]]
 name = "upkr"
-version = "0.1.0"
+version = "0.2.1"
-source = "git+https://github.com/exoticorn/upkr.git?rev=d93aec186c9fb91d962c488682a2db125c61306c#d93aec186c9fb91d962c488682a2db125c61306c"
+source = "git+https://github.com/exoticorn/upkr.git?rev=080db40d0088bbee2bdf3c5c75288ac7853d6b7a#080db40d0088bbee2bdf3c5c75288ac7853d6b7a"
 dependencies = [
  "anyhow",
  "cdivsufsort",
- "pbr",
+ "lexopt",
- "pico-args",
+ "thiserror",
 ]
 
 [[package]]
@@ -206,22 +284,24 @@ dependencies = [
  "pico-args",
  "upkr",
  "walrus",
- "wasm-encoder",
+ "wasm-encoder 0.201.0",
- "wasmparser 0.81.0",
+ "wasmparser 0.201.0",
 ]
 
 [[package]]
 name = "walrus"
-version = "0.19.0"
+version = "0.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4eb08e48cde54c05f363d984bb54ce374f49e242def9468d2e1b6c2372d291f8"
+checksum = "2c03529cd0c4400a2449f640d2f27cd1b48c3065226d15e26d98e4429ab0adb7"
 dependencies = [
  "anyhow",
+ "gimli",
  "id-arena",
  "leb128",
  "log",
  "walrus-macro",
- "wasmparser 0.77.0",
+ "wasm-encoder 0.29.0",
+ "wasmparser 0.80.2",
 ]
 
 [[package]]
@@ -233,35 +313,43 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
-name = "wasi"
+name = "wasm-encoder"
-version = "0.10.0+wasi-snapshot-preview1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
+checksum = "18c41dbd92eaebf3612a39be316540b8377c871cb9bde6b064af962984912881"
+dependencies = [
+ "leb128",
+]
 
 [[package]]
 name = "wasm-encoder"
-version = "0.8.0"
+version = "0.201.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db0c351632e46cc06a58a696a6c11e4cf90cad4b9f8f07a0b59128d616c29bb0"
+checksum = "b9c7d2731df60006819b013f64ccc2019691deccf6e11a1804bc850cd6748f1a"
 dependencies = [
  "leb128",
 ]
 
 [[package]]
 name = "wasmparser"
-version = "0.77.0"
+version = "0.80.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b35c86d22e720a07d954ebbed772d01180501afe7d03d464f413bb5f8914a8d6"
+checksum = "449167e2832691a1bff24cde28d2804e90e09586a448c8e76984792c44334a6b"
 
 [[package]]
 name = "wasmparser"
-version = "0.81.0"
+version = "0.201.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98930446519f63d00a836efdc22f67766ceae8dbcc1571379f2bcabc6b2b9abc"
+checksum = "84e5df6dba6c0d7fafc63a450f1738451ed7a0b52295d83e868218fa286bf708"
+dependencies = [
+ "bitflags",
+ "indexmap 2.2.6",
+ "semver",
+]
 
 [[package]]
 name = "winapi"

uw8-tool/Cargo.toml

@@ -6,10 +6,10 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-wasmparser = "0.81"
+wasmparser = "0.201"
-wasm-encoder = "0.8"
+wasm-encoder = "0.201"
-walrus = "0.19"
+walrus = { version = "0.20.3", default-features = false }
 anyhow = "1"
-pico-args = "0.4"
+pico-args = "0.5"
-upkr = { git = "https://github.com/exoticorn/upkr.git", rev = "d93aec186c9fb91d962c488682a2db125c61306c" }
+upkr = { git = "https://github.com/exoticorn/upkr.git", rev = "080db40d0088bbee2bdf3c5c75288ac7853d6b7a" }
 pbr = "1"

uw8-tool/src/base_module.rs

@@ -3,7 +3,7 @@ use std::{collections::HashMap, fs::File, path::Path};
 use anyhow::{bail, Result};
 use std::io::prelude::*;
 use wasm_encoder::{
-    CodeSection, EntityType, Export, ExportSection, Function, FunctionSection, ImportSection,
+    CodeSection, EntityType, ExportKind, ExportSection, Function, FunctionSection, ImportSection,
     Instruction, MemoryType, Module, TypeSection, ValType,
 };
 use ValType::*;
@@ -37,7 +37,7 @@ impl BaseModule {
 
         let mut types = vec![];
         let mut type_map = HashMap::new();
-        for num_params in 0..6 {
+        for num_params in 0..8 {
             for num_f32 in 0..=num_params {
                 for &result in &[None, Some(ValType::I32), Some(ValType::F32)] {
                     let mut params = vec![];
@@ -152,14 +152,14 @@ impl BaseModule {
         add_function(
             &mut functions,
             &type_map,
-            "rectangle_outline",
+            "rectangleOutline",
             &[F32, F32, F32, F32, I32],
             None,
         );
         add_function(
             &mut functions,
             &type_map,
-            "circle_outline",
+            "circleOutline",
             &[F32, F32, F32, I32],
             None,
         );
@@ -167,6 +167,22 @@ impl BaseModule {
         add_function(&mut functions, &type_map, "exp", &[F32], Some(F32));
 
         add_function(&mut functions, &type_map, "playNote", &[I32, I32], None);
+        add_function(&mut functions, &type_map, "sndGes", &[I32], Some(F32));
+
+        add_function(
+            &mut functions,
+            &type_map,
+            "blitSprite",
+            &[I32, I32, I32, I32, I32],
+            None,
+        );
+        add_function(
+            &mut functions,
+            &type_map,
+            "grabSprite",
+            &[I32, I32, I32, I32, I32],
+            None,
+        );
 
         for i in functions.len()..64 {
             add_function(
@@ -217,13 +233,13 @@ impl BaseModule {
             let mut imports = ImportSection::new();
 
             for (module, name, type_) in &self.function_imports {
-                imports.import(*module, Some(name.as_str()), EntityType::Function(*type_));
+                imports.import(*module, name.as_str(), EntityType::Function(*type_));
             }
 
             for (module, name, import) in &self.global_imports {
                 imports.import(
                     *module,
-                    Some(name.as_str()),
+                    name.as_str(),
                     EntityType::Global(wasm_encoder::GlobalType {
                         val_type: import.type_,
                         mutable: import.mutable,
@@ -233,11 +249,12 @@ impl BaseModule {
 
             imports.import(
                 "env",
-                Some("memory"),
+                "memory",
                 MemoryType {
                     minimum: self.memory as u64,
                     maximum: None,
                     memory64: false,
+                    shared: false,
                 },
             );
 
@@ -258,7 +275,7 @@ impl BaseModule {
             let mut exports = ExportSection::new();
 
             for (name, fnc) in &self.exports {
-                exports.export(*name, Export::Function(*fnc));
+                exports.export(*name, ExportKind::Func, *fnc);
             }
 
             module.section(&exports);
@@ -286,7 +303,7 @@ impl BaseModule {
 
     pub fn create_binary(path: &Path) -> Result<()> {
         let base1 = BaseModule::for_format_version(1)?.to_wasm();
-        let data = upkr::pack(&base1, 4, false, None);
+        let data = upkr::pack(&base1, 4, &upkr::Config::default(), None);
         File::create(path)?.write_all(&data)?;
         Ok(())
     }

uw8-tool/src/filter_exports.rs

@@ -1,13 +1,17 @@
-use std::path::Path;
 use anyhow::Result;
+use std::path::Path;
 
 pub fn filter_exports(in_path: &Path, out_path: &Path) -> Result<()> {
     let mut module = walrus::Module::from_file(in_path)?;
 
-    let exports_to_delete: Vec<_> = module.exports.iter().filter_map(|export| match export.name.as_str() {
+    let exports_to_delete: Vec<_> = module
-        "upd" => None,
+        .exports
-        _ => Some(export.id())
+        .iter()
-    }).collect();
+        .filter_map(|export| match export.name.as_str() {
+            "start" | "upd" | "snd" => None,
+            _ => Some(export.id()),
+        })
+        .collect();
 
     for id in exports_to_delete {
         module.exports.delete(id);

uw8-tool/src/pack.rs

@@ -10,7 +10,7 @@ use std::{
 use wasm_encoder as enc;
 use wasmparser::{
     BinaryReader, ExportSectionReader, ExternalKind, FunctionBody, FunctionSectionReader,
-    ImportSectionEntryType, ImportSectionReader, TableSectionReader, TypeSectionReader,
+    ImportSectionReader, TableSectionReader, TypeRef, TypeSectionReader,
 };
 
 pub struct PackConfig {
@@ -63,7 +63,7 @@ pub fn pack(data: &[u8], config: &PackConfig) -> Result<Vec<u8>> {
         uw8.extend_from_slice(&upkr::pack(
             &result[8..],
             level,
-            false,
+            &upkr::Config::default(),
             Some(&mut |pos| {
                 pb.set(pos as u64);
             }),
@@ -90,7 +90,10 @@ pub fn unpack(data: Vec<u8>) -> Result<Vec<u8>> {
     let (version, data) = match data[0] {
         0 => return Ok(data),
         1 => (1, data[1..].to_vec()),
-        2 => (1, upkr::unpack(&data[1..], false)),
+        2 => (
+            1,
+            upkr::unpack(&data[1..], &upkr::Config::default(), 4 * 1024 * 1024)?,
+        ),
         other => bail!("Uknown format version {}", other),
     };
 
@@ -133,8 +136,8 @@ pub fn unpack(data: Vec<u8>) -> Result<Vec<u8>> {
     Ok(dest)
 }
 
-fn to_val_type(type_: &wasmparser::Type) -> Result<ValType> {
+fn to_val_type(type_: &wasmparser::ValType) -> Result<ValType> {
-    use wasmparser::Type::*;
+    use wasmparser::ValType::*;
     Ok(match *type_ {
         I32 => ValType::I32,
         I64 => ValType::I64,
@@ -144,7 +147,7 @@ fn to_val_type(type_: &wasmparser::Type) -> Result<ValType> {
     })
 }
 
-fn to_val_type_vec(types: &[wasmparser::Type]) -> Result<Vec<ValType>> {
+fn to_val_type_vec(types: &[wasmparser::ValType]) -> Result<Vec<ValType>> {
     types.into_iter().map(to_val_type).collect()
 }
 
@@ -202,7 +205,7 @@ impl<'a> ParsedModule<'a> {
                     import_section = Some(Section::new(range, ImportSection::parse(reader)?));
                 }
                 Payload::GlobalSection(reader) => {
-                    global_section = Some(Section::new(range, reader.get_count()));
+                    global_section = Some(Section::new(range, reader.count()));
                 }
                 Payload::FunctionSection(reader) => {
                     function_section = Some(Section::new(range, read_function_section(reader)?));
@@ -220,17 +223,22 @@ impl<'a> ParsedModule<'a> {
                     validate_table_section(reader)?;
                     table_section = Some(Section::new(range, ()));
                 }
-                Payload::ElementSection(mut reader) => {
+                Payload::MemorySection(reader) => {
-                    let mut elements = Vec::with_capacity(reader.get_count() as usize);
+                    if reader.count() != 0 {
-                    for _ in 0..reader.get_count() {
+                        bail!("Found non-empty MemorySection. Memory has to be imported!");
-                        elements.push(Element::parse(reader.read()?)?);
+                    }
+                }
+                Payload::ElementSection(reader) => {
+                    let mut elements = Vec::with_capacity(reader.count() as usize);
+                    for element in reader {
+                        elements.push(Element::parse(element?)?);
                     }
                     element_section = Some(elements);
                 }
                 Payload::CodeSectionStart { .. } => (),
                 Payload::CodeSectionEntry(body) => function_bodies.push(body),
                 Payload::CustomSection { .. } => (),
-                Payload::End => break,
+                Payload::End(..) => break,
                 other => bail!("Unsupported section: {:?}", other),
             }
 
@@ -458,7 +466,7 @@ impl<'a> ParsedModule<'a> {
             {
                 let mut export_section = enc::ExportSection::new();
                 for (name, fnc) in my_exports {
-                    export_section.export(&name, enc::Export::Function(fnc));
+                    export_section.export(&name, enc::ExportKind::Func, fnc);
                 }
                 module.section(&export_section);
             }
@@ -481,8 +489,7 @@ impl<'a> ParsedModule<'a> {
                 }
                 element_section.active(
                     None,
-                    &wasm_encoder::Instruction::I32Const(element.start_index as i32),
+                    &wasm_encoder::ConstExpr::i32_const(element.start_index as i32),
-                    ValType::FuncRef,
                     wasm_encoder::Elements::Functions(&functions),
                 );
             }
@@ -528,30 +535,32 @@ fn copy_section(module: &mut wasm_encoder::Module, data: &[u8]) -> Result<()> {
 fn read_type_section(reader: TypeSectionReader) -> Result<Vec<base_module::FunctionType>> {
     let mut function_types = vec![];
 
-    for type_def in reader {
+    for rec_group in reader {
-        match type_def? {
+        for sub_type in rec_group?.into_types() {
-            wasmparser::TypeDef::Func(fnc) => {
+            match sub_type.composite_type {
-                if fnc.returns.len() > 1 {
+                wasmparser::CompositeType::Func(fnc) => {
+                    if fnc.results().len() > 1 {
                         bail!("Multi-value not supported");
                     }
-                let params = to_val_type_vec(&fnc.params)?;
+                    let params = to_val_type_vec(fnc.params())?;
-                let result = to_val_type_vec(&fnc.returns)?.into_iter().next();
+                    let result = to_val_type_vec(fnc.results())?.into_iter().next();
                     function_types.push(FunctionType { params, result });
                 }
-            t => bail!("Unsupported type def {:?}", t),
+                _ => bail!("Only function types are supported"),
+            }
         }
     }
 
     Ok(function_types)
 }
 
-fn validate_table_section(mut reader: TableSectionReader) -> Result<()> {
+fn validate_table_section(reader: TableSectionReader) -> Result<()> {
-    if reader.get_count() != 1 {
+    if reader.count() != 1 {
         bail!("Only up to one table supported");
     }
 
-    let type_ = reader.read()?;
+    let table = reader.into_iter().next().unwrap()?;
-    if type_.element_type != wasmparser::Type::FuncRef {
+    if !table.ty.element_type.is_func_ref() {
         bail!("Only one funcref table is supported");
     }
 
@@ -585,21 +594,20 @@ impl ImportSection {
 
         for import in reader {
             let import = import?;
-            if let Some(field) = import.field {
             match import.ty {
-                    ImportSectionEntryType::Function(type_) => {
+                TypeRef::Func(type_) => {
                     functions.push(FunctionImport {
                         module: import.module.to_string(),
-                            field: field.to_string(),
+                        field: import.name.to_string(),
                         type_,
                     });
                 }
-                    ImportSectionEntryType::Memory(mem) => {
+                TypeRef::Memory(mem) => {
-                        if import.module != "env" || field != "memory" {
+                    if import.module != "env" || import.name != "memory" {
                         bail!(
                             "Wrong name of memory import {}.{}, should be env.memory",
                             import.module,
-                                field
+                            import.name
                         );
                     }
                     if mem.memory64 || mem.shared {
@@ -607,10 +615,10 @@ impl ImportSection {
                     }
                     memory = mem.maximum.unwrap_or(mem.initial) as u32;
                 }
-                    ImportSectionEntryType::Global(glbl) => {
+                TypeRef::Global(glbl) => {
                     globals.push(GlobalImport {
                         module: import.module.to_string(),
-                            field: field.to_string(),
+                        field: import.name.to_string(),
                         type_: GlobalType {
                             type_: to_val_type(&glbl.content_type)?,
                             mutable: glbl.mutable,
@@ -619,12 +627,6 @@ impl ImportSection {
                 }
                 _ => bail!("Unsupported import item {:?}", import.ty),
             }
-            } else {
-                bail!(
-                    "Found import without field, only module '{}'",
-                    import.module
-                );
-            }
         }
 
         Ok(ImportSection {
@@ -643,17 +645,20 @@ struct Element {
 
 impl Element {
     fn parse(element: wasmparser::Element) -> Result<Element> {
-        if element.ty != wasmparser::Type::FuncRef {
+        match element.items {
-            bail!("Table element type is not FuncRef");
+            wasmparser::ElementItems::Functions(funcs_reader) => {
-        }
-
                 let start_index = if let wasmparser::ElementKind::Active {
-            init_expr,
+                    offset_expr,
-            table_index: 0,
+                    table_index,
                 } = element.kind
                 {
-            let mut init_reader = init_expr.get_operators_reader();
+                    if table_index.map(|i| i > 0).unwrap_or(false) {
-            if let wasmparser::Operator::I32Const { value: start_index } = init_reader.read()? {
+                        bail!("Only function table with index 0 is supported");
+                    }
+                    let mut init_reader = offset_expr.get_operators_reader();
+                    if let wasmparser::Operator::I32Const { value: start_index } =
+                        init_reader.read()?
+                    {
                         start_index as u32
                     } else {
                         bail!("Table element start index is not a integer constant");
@@ -662,15 +667,9 @@ impl Element {
                     bail!("Unsupported table element kind");
                 };
 
-        let mut items_reader = element.items.get_items_reader()?;
+                let mut functions = Vec::with_capacity(funcs_reader.count() as usize);
-
+                for index in funcs_reader {
-        let mut functions = Vec::with_capacity(items_reader.get_count() as usize);
+                    functions.push(index?);
-        for _ in 0..items_reader.get_count() {
-            if let wasmparser::ElementItem::Func(index) = items_reader.read()? {
-                functions.push(index);
-            } else {
-                bail!("Table element item is not a function");
-            }
                 }
 
                 Ok(Element {
@@ -678,6 +677,9 @@ impl Element {
                     functions,
                 })
             }
+            _ => bail!("Table element type is not FuncRef"),
+        }
+    }
 }
 
 #[derive(Debug)]
@@ -707,8 +709,8 @@ fn read_export_section(reader: ExportSectionReader) -> Result<Vec<(String, u32)>
     for export in reader {
         let export = export?;
         match export.kind {
-            ExternalKind::Function => {
+            ExternalKind::Func => {
-                function_exports.push((export.field.to_string(), export.index));
+                function_exports.push((export.name.to_string(), export.index));
             }
             _ => (), // just ignore all other kinds since MicroW8 doesn't expect any exports other than functions
         }
@@ -729,13 +731,11 @@ fn remap_function(
     }
     let mut function = enc::Function::new(locals);
 
-    let block_type = |ty: wasmparser::TypeOrFuncType| -> Result<enc::BlockType> {
+    let block_type = |ty: wasmparser::BlockType| -> Result<enc::BlockType> {
         Ok(match ty {
-            wasmparser::TypeOrFuncType::Type(wasmparser::Type::EmptyBlockType) => {
+            wasmparser::BlockType::Empty => enc::BlockType::Empty,
-                enc::BlockType::Empty
+            wasmparser::BlockType::Type(ty) => enc::BlockType::Result(to_val_type(&ty)?),
-            }
+            wasmparser::BlockType::FuncType(ty) => enc::BlockType::FunctionType(
-            wasmparser::TypeOrFuncType::Type(ty) => enc::BlockType::Result(to_val_type(&ty)?),
-            wasmparser::TypeOrFuncType::FuncType(ty) => enc::BlockType::FunctionType(
                 *type_map
                     .get(&ty)
                     .ok_or_else(|| anyhow!("Function type index out of range: {}", ty))?,
@@ -749,7 +749,7 @@ fn remap_function(
             .ok_or_else(|| anyhow!("Global index out of range: {}", idx))?)
     };
 
-    fn mem(m: wasmparser::MemoryImmediate) -> enc::MemArg {
+    fn mem(m: wasmparser::MemArg) -> enc::MemArg {
         enc::MemArg {
             offset: m.offset,
             align: m.align as u32,
@@ -764,24 +764,31 @@ fn remap_function(
         function.instruction(&match op? {
             De::Unreachable => En::Unreachable,
             De::Nop => En::Nop,
-            De::Block { ty } => En::Block(block_type(ty)?),
+            De::Block { blockty } => En::Block(block_type(blockty)?),
-            De::Loop { ty } => En::Loop(block_type(ty)?),
+            De::Loop { blockty } => En::Loop(block_type(blockty)?),
-            De::If { ty } => En::If(block_type(ty)?),
+            De::If { blockty } => En::If(block_type(blockty)?),
             De::Else => En::Else,
             De::Try { .. } | De::Catch { .. } | De::Throw { .. } | De::Rethrow { .. } => todo!(),
             De::End => En::End,
             De::Br { relative_depth } => En::Br(relative_depth),
             De::BrIf { relative_depth } => En::BrIf(relative_depth),
-            De::BrTable { .. } => todo!(),
+            De::BrTable { targets } => En::BrTable(
+                targets.targets().collect::<Result<Vec<u32>, _>>()?.into(),
+                targets.default(),
+            ),
             De::Return => En::Return,
             De::Call { function_index } => En::Call(
                 *function_map
                     .get(&function_index)
                     .ok_or_else(|| anyhow!("Function index out of range: {}", function_index))?,
             ),
-            De::CallIndirect { index, table_index } => En::CallIndirect {
+            De::CallIndirect {
+                type_index,
+                table_index,
+                table_byte: _, // what is this supposed to be?
+            } => En::CallIndirect {
                 ty: *type_map
-                    .get(&index)
+                    .get(&type_index)
                     .ok_or_else(|| anyhow!("Unknown function type in call indirect"))?,
                 table: table_index,
             },
@@ -801,16 +808,16 @@ fn remap_function(
             De::I64Load { memarg } => En::I64Load(mem(memarg)),
             De::F32Load { memarg } => En::F32Load(mem(memarg)),
             De::F64Load { memarg } => En::F64Load(mem(memarg)),
-            De::I32Load8S { memarg } => En::I32Load8_S(mem(memarg)),
+            De::I32Load8S { memarg } => En::I32Load8S(mem(memarg)),
-            De::I32Load8U { memarg } => En::I32Load8_U(mem(memarg)),
+            De::I32Load8U { memarg } => En::I32Load8U(mem(memarg)),
-            De::I32Load16S { memarg } => En::I32Load16_S(mem(memarg)),
+            De::I32Load16S { memarg } => En::I32Load16S(mem(memarg)),
-            De::I32Load16U { memarg } => En::I32Load16_U(mem(memarg)),
+            De::I32Load16U { memarg } => En::I32Load16U(mem(memarg)),
-            De::I64Load8S { memarg } => En::I64Load8_S(mem(memarg)),
+            De::I64Load8S { memarg } => En::I64Load8S(mem(memarg)),
-            De::I64Load8U { memarg } => En::I64Load8_U(mem(memarg)),
+            De::I64Load8U { memarg } => En::I64Load8U(mem(memarg)),
-            De::I64Load16S { memarg } => En::I64Load16_S(mem(memarg)),
+            De::I64Load16S { memarg } => En::I64Load16S(mem(memarg)),
-            De::I64Load16U { memarg } => En::I64Load16_U(mem(memarg)),
+            De::I64Load16U { memarg } => En::I64Load16U(mem(memarg)),
-            De::I64Load32S { memarg } => En::I64Load32_S(mem(memarg)),
+            De::I64Load32S { memarg } => En::I64Load32S(mem(memarg)),
-            De::I64Load32U { memarg } => En::I64Load32_U(mem(memarg)),
+            De::I64Load32U { memarg } => En::I64Load32U(mem(memarg)),
             De::I32Store { memarg } => En::I32Store(mem(memarg)),
             De::I64Store { memarg } => En::I64Store(mem(memarg)),
             De::F32Store { memarg } => En::F32Store(mem(memarg)),
@@ -829,7 +836,7 @@ fn remap_function(
             De::RefNull { .. } | De::RefIsNull { .. } | De::RefFunc { .. } => todo!(),
             De::I32Eqz => En::I32Eqz,
             De::I32Eq => En::I32Eq,
-            De::I32Ne => En::I32Neq,
+            De::I32Ne => En::I32Ne,
             De::I32LtS => En::I32LtS,
             De::I32LtU => En::I32LtU,
             De::I32GtS => En::I32GtS,
@@ -840,7 +847,7 @@ fn remap_function(
             De::I32GeU => En::I32GeU,
             De::I64Eqz => En::I64Eqz,
             De::I64Eq => En::I64Eq,
-            De::I64Ne => En::I64Neq,
+            De::I64Ne => En::I64Ne,
             De::I64LtS => En::I64LtS,
             De::I64LtU => En::I64LtU,
             De::I64GtS => En::I64GtS,
@@ -850,13 +857,13 @@ fn remap_function(
             De::I64GeS => En::I64GeS,
             De::I64GeU => En::I64GeU,
             De::F32Eq => En::F32Eq,
-            De::F32Ne => En::F32Neq,
+            De::F32Ne => En::F32Ne,
             De::F32Lt => En::F32Lt,
             De::F32Gt => En::F32Gt,
             De::F32Le => En::F32Le,
             De::F32Ge => En::F32Ge,
             De::F64Eq => En::F64Eq,
-            De::F64Ne => En::F64Neq,
+            De::F64Ne => En::F64Ne,
             De::F64Lt => En::F64Lt,
             De::F64Gt => En::F64Gt,
             De::F64Le => En::F64Le,
@@ -963,7 +970,7 @@ fn remap_function(
             De::I64TruncSatF32U => En::I64TruncSatF32U,
             De::I64TruncSatF64S => En::I64TruncSatF64S,
             De::I64TruncSatF64U => En::I64TruncSatF64U,
-            De::MemoryCopy { src, dst } => En::MemoryCopy { src, dst },
+            De::MemoryCopy { src_mem, dst_mem } => En::MemoryCopy { src_mem, dst_mem },
             De::MemoryFill { mem } => En::MemoryFill(mem),
             other => bail!("Unsupported instruction {:?}", other),
         });

uw8-window/Cargo.toml

@@ -6,12 +6,13 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-winit = "0.26.1"
+env_logger = "0.11.3"
-env_logger = "0.9"
+winit = "0.28.6"
 log = "0.4"
-wgpu = "0.13.1"
+pico-args = "0.5"
-pollster = "0.2"
+wgpu = "0.17"
-bytemuck = { version = "1.4", features = [ "derive" ] }
+pollster = "0.3.0"
+bytemuck = { version = "1.15", features = [ "derive" ] }
 anyhow = "1"
-minifb = { version = "0.23.0", default-features = false, features = ["x11"] }
+minifb = { version = "0.25.0", default-features = false, features = ["x11"] }
-winapi = "0.3.9"
+winapi = { version = "0.3.9", features = [ "timeapi" ] }

uw8-window/src/cpu.rs

@@ -1,7 +1,8 @@
 use std::time::Instant;
 
-use crate::Framebuffer;
+use crate::{Input, WindowImpl};
-use minifb::{Key, Window, WindowOptions};
+use anyhow::Result;
+use minifb::{Key, WindowOptions};
 
 static GAMEPAD_KEYS: &[Key] = &[
     Key::Up,
@@ -14,13 +15,19 @@ static GAMEPAD_KEYS: &[Key] = &[
     Key::S,
 ];
 
-pub fn run(mut update: Box<dyn FnMut(&mut dyn Framebuffer, u32, bool) -> Instant + 'static>) -> ! {
+pub struct Window {
+    window: minifb::Window,
+    buffer: Vec<u32>,
+}
+
+impl Window {
+    pub fn new() -> Result<Window> {
         #[cfg(target_os = "windows")]
         unsafe {
             winapi::um::timeapi::timeBeginPeriod(1);
         }
 
-    let mut buffer: Vec<u32> = vec![0; 320 * 240];
+        let buffer: Vec<u32> = vec![0; 320 * 240];
 
         let options = WindowOptions {
             scale: minifb::Scale::X2,
@@ -28,44 +35,33 @@ pub fn run(mut update: Box<dyn FnMut(&mut dyn Framebuffer, u32, bool) -> Instant
             resize: true,
             ..Default::default()
         };
-    let mut window = Window::new("MicroW8", 320, 240, options).unwrap();
+        let window = minifb::Window::new("MicroW8", 320, 240, options).unwrap();
 
-    let mut next_frame = Instant::now();
+        Ok(Window { window, buffer })
-    while window.is_open() && !window.is_key_down(Key::Escape) {
+    }
-        if let Some(sleep) = next_frame.checked_duration_since(Instant::now()) {
-            std::thread::sleep(sleep);
 }
 
-        let mut gamepad = 0;
+impl WindowImpl for Window {
-        for key in window.get_keys() {
+    fn begin_frame(&mut self) -> Input {
+        let mut gamepads = [0u8; 4];
+        for key in self.window.get_keys() {
             if let Some(index) = GAMEPAD_KEYS
                 .iter()
                 .enumerate()
                 .find(|(_, &k)| k == key)
                 .map(|(i, _)| i)
             {
-                gamepad |= 1 << index;
+                gamepads[0] |= 1 << index;
             }
         }
 
-        next_frame = update(
+        Input {
-            &mut CpuFramebuffer {
+            gamepads,
-                buffer: &mut buffer,
+            reset: self.window.is_key_pressed(Key::R, minifb::KeyRepeat::No),
-            },
-            gamepad,
-            window.is_key_pressed(Key::R, minifb::KeyRepeat::No),
-        );
-        window.update_with_buffer(&buffer, 320, 240).unwrap();
         }
-    std::process::exit(0);
     }
 
-struct CpuFramebuffer<'a> {
+    fn end_frame(&mut self, framebuffer: &[u8], palette: &[u8], next_frame: Instant) {
-    buffer: &'a mut Vec<u32>,
-}
-
-impl<'a> Framebuffer for CpuFramebuffer<'a> {
-    fn update(&mut self, framebuffer: &[u8], palette: &[u8]) {
         for (i, &color_index) in framebuffer.iter().enumerate() {
             let offset = color_index as usize * 4;
             self.buffer[i] = 0xff000000
@@ -73,5 +69,15 @@ impl<'a> Framebuffer for CpuFramebuffer<'a> {
                 | ((palette[offset + 1] as u32) << 8)
                 | palette[offset + 2] as u32;
         }
+        self.window
+            .update_with_buffer(&self.buffer, 320, 240)
+            .unwrap();
+        if let Some(sleep) = next_frame.checked_duration_since(Instant::now()) {
+            std::thread::sleep(sleep);
+        }
+    }
+
+    fn is_open(&self) -> bool {
+        self.window.is_open() && !self.window.is_key_down(Key::Escape)
     }
 }

uw8-window/src/gpu/crt.rs

@@ -1,7 +1,7 @@
 use wgpu::util::DeviceExt;
 use winit::dpi::PhysicalSize;
 
-use super::Filter;
+use super::{scale_mode::ScaleMode, Filter};
 
 pub struct CrtFilter {
     uniform_buffer: wgpu::Buffer,
@@ -15,9 +15,10 @@ impl CrtFilter {
         screen: &wgpu::TextureView,
         resolution: PhysicalSize<u32>,
         surface_format: wgpu::TextureFormat,
+        scale_mode: ScaleMode,
     ) -> CrtFilter {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(resolution),
+            texture_scale: scale_mode.texture_scale_from_resolution(resolution),
         };
 
         let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@@ -112,9 +113,9 @@ impl CrtFilter {
 }
 
 impl Filter for CrtFilter {
-    fn resize(&self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(new_size),
+            texture_scale: scale_mode.texture_scale_from_resolution(new_size),
         };
         queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[uniforms]));
     }
@@ -126,16 +127,6 @@ impl Filter for CrtFilter {
     }
 }
 
-fn texture_scale_from_resolution(res: PhysicalSize<u32>) -> [f32; 4] {
-    let scale = ((res.width as f32) / 160.0).min((res.height as f32) / 120.0);
-    [
-        res.width as f32 / scale,
-        res.height as f32 / scale,
-        2.0 / scale,
-        0.0,
-    ]
-}
-
 #[repr(C)]
 #[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
 struct Uniforms {

uw8-window/src/gpu/crt.wgsl

@@ -17,7 +17,7 @@ fn vs_main(
     let i = in_vertex_index / 3u + in_vertex_index % 3u;
     let x = -1.0 + f32(i % 2u) * 322.0;
     let y = -1.0 + f32(i / 2u) * 242.0;
-    out.clip_position = vec4<f32>((vec2<f32>(x, y) - vec2<f32>(160.0, 120.0)) / uniforms.texture_scale.xy, 0.0, 1.0);
+    out.clip_position = vec4<f32>((vec2<f32>(x, y) - vec2<f32>(160.0, 120.0)) * uniforms.texture_scale.xy, 0.0, 1.0);
     out.tex_coords = vec2<f32>(x, y);
     return out;
 }
@@ -36,36 +36,36 @@ fn sample_pixel(coords: vec2<i32>, offset: vec4<f32>) -> vec3<f32> {
 
 @fragment
 fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
-    let pixel = floor(in.tex_coords);
+    let pixelf = floor(in.tex_coords);
-    let o = vec2<f32>(0.5) - (in.tex_coords - pixel);
+    let o = vec2<f32>(0.5) - (in.tex_coords - pixelf);
-    let pixel = vec2<i32>(pixel);
+    let pixel = vec2<i32>(pixelf);
     
     let offset_x = o.xxxx + vec4<f32>(-0.125, 0.375, 0.125, -0.375) * uniforms.texture_scale.z;
     let offset_y = o.yyyy + vec4<f32>(-0.375, -0.125, 0.375, 0.125) * uniforms.texture_scale.z;
     
-    let offset_x0 = max(abs(offset_x + vec4<f32>(-1.0)) - vec4<f32>(0.5), vec4<f32>(0.0));
+    var offset_x0 = max(abs(offset_x + vec4<f32>(-1.0)) - vec4<f32>(0.5), vec4<f32>(0.0));
-    let offset_x1 = max(abs(offset_x) - vec4<f32>(0.5), vec4<f32>(0.0));
+    var offset_x1 = max(abs(offset_x) - vec4<f32>(0.5), vec4<f32>(0.0));
-    let offset_x2 = max(abs(offset_x + vec4<f32>(1.0)) - vec4<f32>(0.5), vec4<f32>(0.0));
+    var offset_x2 = max(abs(offset_x + vec4<f32>(1.0)) - vec4<f32>(0.5), vec4<f32>(0.0));
     
-    let offset_x0 = offset_x0 * offset_x0;
+    offset_x0 = offset_x0 * offset_x0;
-    let offset_x1 = offset_x1 * offset_x1;
+    offset_x1 = offset_x1 * offset_x1;
-    let offset_x2 = offset_x2 * offset_x2;
+    offset_x2 = offset_x2 * offset_x2;
     
-    let offset_yr = offset_y + vec4<f32>(-1.0);
+    var offset_yr = offset_y + vec4<f32>(-1.0);
-    let offset_yr = vec4<f32>(0.02) + offset_yr * offset_yr;
+    offset_yr = vec4<f32>(0.02) + offset_yr * offset_yr;
     
     var acc = sample_pixel(pixel + vec2<i32>(-1, -1), offset_x0 + offset_yr);
     acc = acc + sample_pixel(pixel + vec2<i32>(0, -1), offset_x1 + offset_yr);
     acc = acc + sample_pixel(pixel + vec2<i32>(1, -1), offset_x2 + offset_yr);
 
-    let offset_yr = vec4<f32>(0.02) + offset_y * offset_y;
+    offset_yr = vec4<f32>(0.02) + offset_y * offset_y;
     
     acc = acc + sample_pixel(pixel + vec2<i32>(-1, 0), offset_x0 + offset_yr);
     acc = acc + sample_pixel(pixel, offset_x1 + offset_yr);
     acc = acc + sample_pixel(pixel + vec2<i32>(1, 0), offset_x2 + offset_yr);
 
-    let offset_yr = offset_y + vec4<f32>(1.0);
+    offset_yr = offset_y + vec4<f32>(1.0);
-    let offset_yr = vec4<f32>(0.02) + offset_yr * offset_yr;
+    offset_yr = vec4<f32>(0.02) + offset_yr * offset_yr;
     
     acc = acc + sample_pixel(pixel + vec2<i32>(-1, 1), offset_x0 + offset_yr);
     acc = acc + sample_pixel(pixel + vec2<i32>(0, 1), offset_x1 + offset_yr);

uw8-window/src/gpu/fast_crt.rs

@@ -1,7 +1,7 @@
 use wgpu::util::DeviceExt;
 use winit::dpi::PhysicalSize;
 
-use super::Filter;
+use super::{scale_mode::ScaleMode, Filter};
 
 pub struct FastCrtFilter {
     uniform_buffer: wgpu::Buffer,
@@ -15,9 +15,11 @@ impl FastCrtFilter {
         screen: &wgpu::TextureView,
         resolution: PhysicalSize<u32>,
         surface_format: wgpu::TextureFormat,
+        chromatic: bool,
+        scale_mode: ScaleMode,
     ) -> FastCrtFilter {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(resolution),
+            texture_scale: scale_mode.texture_scale_from_resolution(resolution),
         };
 
         let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@@ -104,7 +106,11 @@ impl FastCrtFilter {
             },
             fragment: Some(wgpu::FragmentState {
                 module: &shader,
-                entry_point: "fs_main",
+                entry_point: if chromatic {
+                    "fs_main_chromatic"
+                } else {
+                    "fs_main"
+                },
                 targets: &[Some(wgpu::ColorTargetState {
                     format: surface_format,
                     blend: None,
@@ -126,9 +132,9 @@ impl FastCrtFilter {
 }
 
 impl Filter for FastCrtFilter {
-    fn resize(&self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(new_size),
+            texture_scale: scale_mode.texture_scale_from_resolution(new_size),
         };
         queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[uniforms]));
     }
@@ -140,16 +146,6 @@ impl Filter for FastCrtFilter {
     }
 }
 
-fn texture_scale_from_resolution(res: PhysicalSize<u32>) -> [f32; 4] {
-    let scale = ((res.width as f32) / 160.0).min((res.height as f32) / 120.0);
-    [
-        scale / res.width as f32,
-        scale / res.height as f32,
-        2.0 / scale,
-        0.0,
-    ]
-}
-
 #[repr(C)]
 #[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
 struct Uniforms {

uw8-window/src/gpu/fast_crt.wgsl

@@ -30,14 +30,13 @@ fn row_factor(offset: f32) -> f32 {
 }
 
 fn col_factor(offset: f32) -> f32 {
-    let offset = max(0.0, abs(offset) - 0.4);
+    let o = max(0.0, abs(offset) - 0.4);
-    return 1.0 / (1.0 + offset * offset * 16.0);
+    return 1.0 / (1.0 + o * o * 16.0);
 }
 
-@fragment
+fn sample_screen(tex_coords: vec2<f32>) -> vec4<f32> {
-fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
+    let base = round(tex_coords) - vec2<f32>(0.5);
-    let base = round(in.tex_coords) - vec2<f32>(0.5);
+    let frac = tex_coords - base;
-    let frac = in.tex_coords - base;
     
     let top_factor = row_factor(frac.y);
     let bottom_factor = row_factor(frac.y - 1.0);
@@ -52,3 +51,16 @@ fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
     return textureSample(screen_texture, linear_sampler, vec2<f32>(u, v) / vec2<f32>(320.0, 240.0)) * (top_factor + bottom_factor) * (left_factor + right_factor) * 1.1;
 }
 
+@fragment
+fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
+    return sample_screen(in.tex_coords);
+}
+
+@fragment
+fn fs_main_chromatic(in: VertexOutput) -> @location(0) vec4<f32> {
+    let r = sample_screen(in.tex_coords + vec2<f32>(0.2, 0.2)).r;
+    let g = sample_screen(in.tex_coords + vec2<f32>(0.07, -0.27)).g;
+    let b = sample_screen(in.tex_coords + vec2<f32>(-0.27, 0.07)).b;
+    return vec4<f32>(r, g, b, 1.0);
+}
+

uw8-window/src/gpu/mod.rs

@@ -1,6 +1,7 @@
-use crate::Framebuffer;
+use crate::{Input, WindowConfig, WindowImpl};
 use anyhow::{anyhow, Result};
-use std::{num::NonZeroU32, time::Instant};
+use scale_mode::ScaleMode;
+use std::time::Instant;
 
 use winit::{
     dpi::PhysicalSize,
@@ -9,15 +10,11 @@ use winit::{
     window::{Fullscreen, WindowBuilder},
 };
 
-#[cfg(target_os = "macos")]
+use winit::platform::run_return::EventLoopExtRunReturn;
-use winit::platform::macos::EventLoopExtMacOS;
-#[cfg(target_os = "linux")]
-use winit::platform::unix::EventLoopExtUnix;
-#[cfg(target_os = "windows")]
-use winit::platform::windows::EventLoopExtWindows;
 
 mod crt;
 mod fast_crt;
+pub mod scale_mode;
 mod square;
 
 use crt::CrtFilter;
@@ -25,29 +22,45 @@ use fast_crt::FastCrtFilter;
 use square::SquareFilter;
 
 pub struct Window {
-    event_loop: EventLoop<()>,
+    _instance: wgpu::Instance,
-    window: winit::window::Window,
-    instance: wgpu::Instance,
     surface: wgpu::Surface,
-    adapter: wgpu::Adapter,
+    _adapter: wgpu::Adapter,
     device: wgpu::Device,
     queue: wgpu::Queue,
+    palette_screen_mode: PaletteScreenMode,
+    surface_config: wgpu::SurfaceConfiguration,
+    filter: Box<dyn Filter>,
+    event_loop: EventLoop<()>,
+    window: winit::window::Window,
+    gamepads: [u8; 4],
+    next_frame: Instant,
+    is_fullscreen: bool,
+    is_open: bool,
+    scale_mode: ScaleMode,
 }
 
 impl Window {
-    pub fn new() -> Result<Window> {
+    pub fn new(window_config: WindowConfig) -> Result<Window> {
-        async fn create() -> Result<Window> {
+        async fn create(window_config: WindowConfig) -> Result<Window> {
-            let event_loop = EventLoop::new_any_thread();
+            let event_loop = EventLoop::new();
             let window = WindowBuilder::new()
-                .with_inner_size(PhysicalSize::new(640u32, 480))
+                .with_inner_size(PhysicalSize::new(
+                    (320. * window_config.scale).round() as u32,
+                    (240. * window_config.scale).round() as u32,
+                ))
                 .with_min_inner_size(PhysicalSize::new(320u32, 240))
                 .with_title("MicroW8")
+                .with_fullscreen(if window_config.fullscreen {
+                    Some(Fullscreen::Borderless(None))
+                } else {
+                    None
+                })
                 .build(&event_loop)?;
 
             window.set_cursor_visible(false);
 
-            let instance = wgpu::Instance::new(wgpu::Backends::all());
+            let instance = wgpu::Instance::new(Default::default());
-            let surface = unsafe { instance.create_surface(&window) };
+            let surface = unsafe { instance.create_surface(&window) }?;
             let adapter = instance
                 .request_adapter(&wgpu::RequestAdapterOptions {
                     power_preference: wgpu::PowerPreference::LowPower,
@@ -61,70 +74,73 @@ impl Window {
                 .request_device(&wgpu::DeviceDescriptor::default(), None)
                 .await?;
 
-            Ok(Window {
-                event_loop,
-                window,
-                instance,
-                surface,
-                adapter,
-                device,
-                queue,
-            })
-        }
-
-        pollster::block_on(create())
-    }
-
-    pub fn run(
-        self,
-        mut update: Box<dyn FnMut(&mut dyn Framebuffer, u32, bool) -> Instant + 'static>,
-    ) -> ! {
-        let Window {
-            event_loop,
-            window,
-            instance,
-            surface,
-            adapter,
-            device,
-            queue,
-        } = self;
-
             let palette_screen_mode = PaletteScreenMode::new(&device);
 
-        let mut surface_config = wgpu::SurfaceConfiguration {
+            let surface_config = wgpu::SurfaceConfiguration {
-            usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
-            format: surface.get_supported_formats(&adapter)[0],
-            width: window.inner_size().width,
-            height: window.inner_size().height,
                 present_mode: wgpu::PresentMode::AutoNoVsync,
+                ..surface
+                    .get_default_config(
+                        &adapter,
+                        window.inner_size().width,
+                        window.inner_size().height,
+                    )
+                    .expect("Surface incompatible with adapter")
             };
 
-        let mut filter: Box<dyn Filter> = Box::new(CrtFilter::new(
+            let filter: Box<dyn Filter> = create_filter(
                 &device,
                 &palette_screen_mode.screen_view,
                 window.inner_size(),
                 surface_config.format,
-        ));
+                window_config.filter,
+                window_config.scale_mode,
+            );
 
             surface.configure(&device, &surface_config);
 
+            Ok(Window {
+                event_loop,
+                window,
+                _instance: instance,
+                surface,
+                _adapter: adapter,
+                device,
+                queue,
+                palette_screen_mode,
+                surface_config,
+                filter,
+                gamepads: [0; 4],
+                next_frame: Instant::now(),
+                is_fullscreen: window_config.fullscreen,
+                is_open: true,
+                scale_mode: window_config.scale_mode,
+            })
+        }
+
+        pollster::block_on(create(window_config))
+    }
+}
+
+impl WindowImpl for Window {
+    fn begin_frame(&mut self) -> Input {
         let mut reset = false;
-        let mut gamepad = 0;
+        self.event_loop.run_return(|event, _, control_flow| {
-
+            *control_flow = ControlFlow::WaitUntil(self.next_frame);
-        event_loop.run(move |event, _, control_flow| {
+            let mut new_filter = None;
-            let _ = (&window, &instance, &surface, &adapter, &device);
-
             match event {
                 Event::WindowEvent { event, .. } => match event {
                     WindowEvent::Resized(new_size) => {
-                        surface_config.width = new_size.width;
+                        self.surface_config.width = new_size.width;
-                        surface_config.height = new_size.height;
+                        self.surface_config.height = new_size.height;
-                        surface.configure(&device, &surface_config);
+                        self.surface.configure(&self.device, &self.surface_config);
-                        filter.resize(&queue, new_size);
+                        self.filter.resize(&self.queue, new_size, self.scale_mode);
+                    }
+                    WindowEvent::CloseRequested => {
+                        self.is_open = false;
+                        *control_flow = ControlFlow::Exit;
                     }
-                    WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
                     WindowEvent::KeyboardInput { input, .. } => {
-                        fn gamepad_button(input: &winit::event::KeyboardInput) -> u32 {
+                        fn gamepad_button(input: &winit::event::KeyboardInput) -> u8 {
                             match input.scancode {
                                 44 => 16,
                                 45 => 32,
@@ -141,78 +157,94 @@ impl Window {
                         }
                         if input.state == winit::event::ElementState::Pressed {
                             match input.virtual_keycode {
-                                Some(VirtualKeyCode::Escape) => *control_flow = ControlFlow::Exit,
+                                Some(VirtualKeyCode::Escape) => {
+                                    self.is_open = false;
+                                    *control_flow = ControlFlow::Exit;
+                                }
                                 Some(VirtualKeyCode::F) => {
-                                    window.set_fullscreen(if window.fullscreen().is_some() {
+                                    let fullscreen = if self.window.fullscreen().is_some() {
                                         None
                                     } else {
                                         Some(Fullscreen::Borderless(None))
-                                    });
+                                    };
+                                    self.is_fullscreen = fullscreen.is_some();
+                                    self.window.set_fullscreen(fullscreen);
+                                }
+                                Some(VirtualKeyCode::M) => {
+                                    self.scale_mode = match self.scale_mode {
+                                        ScaleMode::Fit => ScaleMode::Fill,
+                                        ScaleMode::Fill => ScaleMode::Fit,
+                                    };
+                                    self.filter.resize(
+                                        &self.queue,
+                                        PhysicalSize {
+                                            width: self.surface_config.width,
+                                            height: self.surface_config.height,
+                                        },
+                                        self.scale_mode,
+                                    );
                                 }
                                 Some(VirtualKeyCode::R) => reset = true,
-                                Some(VirtualKeyCode::Key1) => {
+                                Some(VirtualKeyCode::Key1) => new_filter = Some(1),
-                                    filter = Box::new(SquareFilter::new(
+                                Some(VirtualKeyCode::Key2) => new_filter = Some(2),
-                                        &device,
+                                Some(VirtualKeyCode::Key3) => new_filter = Some(3),
-                                        &palette_screen_mode.screen_view,
+                                Some(VirtualKeyCode::Key4) => new_filter = Some(4),
-                                        window.inner_size(),
+                                Some(VirtualKeyCode::Key5) => new_filter = Some(5),
-                                        surface_config.format,
-                                    ))
-                                }
-                                Some(VirtualKeyCode::Key2) => {
-                                    filter = Box::new(FastCrtFilter::new(
-                                        &device,
-                                        &palette_screen_mode.screen_view,
-                                        window.inner_size(),
-                                        surface_config.format,
-                                    ))
-                                }
-                                Some(VirtualKeyCode::Key3) => {
-                                    filter = Box::new(CrtFilter::new(
-                                        &device,
-                                        &palette_screen_mode.screen_view,
-                                        window.inner_size(),
-                                        surface_config.format,
-                                    ))
-                                }
                                 _ => (),
                             }
 
-                            gamepad |= gamepad_button(&input);
+                            self.gamepads[0] |= gamepad_button(&input);
                         } else {
-                            gamepad &= !gamepad_button(&input);
+                            self.gamepads[0] &= !gamepad_button(&input);
                         }
                     }
                     _ => (),
                 },
-                Event::MainEventsCleared => {
+                Event::RedrawEventsCleared => {
-                    if let ControlFlow::WaitUntil(t) = *control_flow {
+                    if Instant::now() >= self.next_frame
-                        if Instant::now() < t {
+                        // workaround needed on Wayland until the next winit release
-                            return;
+                        && self.window.fullscreen().is_some() == self.is_fullscreen
+                    {
+                        *control_flow = ControlFlow::Exit
                     }
                 }
-                    let next_frame = update(
+                _ => (),
-                        &mut GpuFramebuffer {
+            }
-                            queue: &queue,
+            if let Some(new_filter) = new_filter {
-                            framebuffer: &palette_screen_mode,
+                self.filter = create_filter(
-                        },
+                    &self.device,
-                        gamepad,
+                    &self.palette_screen_mode.screen_view,
-                        reset,
+                    self.window.inner_size(),
+                    self.surface_config.format,
+                    new_filter,
+                    self.scale_mode,
                 );
-                    reset = false;
+            }
-                    *control_flow = ControlFlow::WaitUntil(next_frame);
+        });
+        Input {
+            gamepads: self.gamepads,
+            reset,
+        }
+    }
 
-                    let output = surface.get_current_texture().unwrap();
+    fn end_frame(&mut self, framebuffer: &[u8], palette: &[u8], next_frame: Instant) {
+        self.next_frame = next_frame;
+        self.palette_screen_mode
+            .write_framebuffer(&self.queue, framebuffer);
+        self.palette_screen_mode.write_palette(&self.queue, palette);
+
+        let output = self.surface.get_current_texture().unwrap();
         let view = output
             .texture
             .create_view(&wgpu::TextureViewDescriptor::default());
-                    let mut encoder = device
+        let mut encoder = self
+            .device
             .create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
 
-                    palette_screen_mode.resolve_screen(&mut encoder);
+        self.palette_screen_mode.resolve_screen(&mut encoder);
 
         {
-                        let mut render_pass =
+            let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
-                            encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
                 label: None,
                 color_attachments: &[Some(wgpu::RenderPassColorAttachment {
                     view: &view,
@@ -230,35 +262,113 @@ impl Window {
                 depth_stencil_attachment: None,
             });
 
-                        filter.render(&mut render_pass);
+            self.filter.render(&mut render_pass);
         }
 
-                    queue.submit(std::iter::once(encoder.finish()));
+        self.queue.submit(std::iter::once(encoder.finish()));
         output.present();
     }
-                _ => (),
+
-            }
+    fn is_open(&self) -> bool {
-        });
+        self.is_open
     }
 }
 
-struct GpuFramebuffer<'a> {
+fn create_filter(
-    framebuffer: &'a PaletteScreenMode,
+    device: &wgpu::Device,
-    queue: &'a wgpu::Queue,
+    screen_texture: &wgpu::TextureView,
-}
+    window_size: PhysicalSize<u32>,
-
+    surface_format: wgpu::TextureFormat,
-impl<'a> Framebuffer for GpuFramebuffer<'a> {
+    filter: u32,
-    fn update(&mut self, pixels: &[u8], palette: &[u8]) {
+    scale_mode: ScaleMode,
-        self.framebuffer.write_framebuffer(self.queue, pixels);
+) -> Box<dyn Filter> {
-        self.framebuffer.write_palette(self.queue, palette);
+    match filter {
+        1 => Box::new(SquareFilter::new(
+            device,
+            screen_texture,
+            window_size,
+            surface_format,
+            scale_mode,
+        )),
+        2 => Box::new(FastCrtFilter::new(
+            device,
+            screen_texture,
+            window_size,
+            surface_format,
+            false,
+            scale_mode,
+        )),
+        3 => Box::new(CrtFilter::new(
+            device,
+            screen_texture,
+            window_size,
+            surface_format,
+            scale_mode,
+        )),
+        4 => Box::new(FastCrtFilter::new(
+            device,
+            screen_texture,
+            window_size,
+            surface_format,
+            true,
+            scale_mode,
+        )),
+        _ => Box::new(AutoCrtFilter::new(
+            device,
+            screen_texture,
+            window_size,
+            surface_format,
+            scale_mode,
+        )),
     }
 }
 
 trait Filter {
-    fn resize(&self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>);
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode);
     fn render<'a>(&'a self, render_pass: &mut wgpu::RenderPass<'a>);
 }
 
+struct AutoCrtFilter {
+    small: CrtFilter,
+    large: FastCrtFilter,
+    resolution: PhysicalSize<u32>,
+}
+
+impl AutoCrtFilter {
+    fn new(
+        device: &wgpu::Device,
+        screen: &wgpu::TextureView,
+        resolution: PhysicalSize<u32>,
+        surface_format: wgpu::TextureFormat,
+        scale_mode: ScaleMode,
+    ) -> AutoCrtFilter {
+        let small = CrtFilter::new(device, screen, resolution, surface_format, scale_mode);
+        let large =
+            FastCrtFilter::new(device, screen, resolution, surface_format, true, scale_mode);
+        AutoCrtFilter {
+            small,
+            large,
+            resolution,
+        }
+    }
+}
+
+impl Filter for AutoCrtFilter {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
+        self.small.resize(queue, new_size, scale_mode);
+        self.large.resize(queue, new_size, scale_mode);
+        self.resolution = new_size;
+    }
+
+    fn render<'a>(&'a self, render_pass: &mut wgpu::RenderPass<'a>) {
+        if self.resolution.width < 960 || self.resolution.height < 720 {
+            self.small.render(render_pass);
+        } else {
+            self.large.render(render_pass);
+        }
+    }
+}
+
 struct PaletteScreenMode {
     framebuffer: wgpu::Texture,
     palette: wgpu::Texture,
@@ -281,6 +391,7 @@ impl PaletteScreenMode {
             format: wgpu::TextureFormat::R8Uint,
             usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
             label: None,
+            view_formats: &[],
         });
 
         let palette_texture = device.create_texture(&wgpu::TextureDescriptor {
@@ -295,6 +406,7 @@ impl PaletteScreenMode {
             format: wgpu::TextureFormat::Rgba8UnormSrgb,
             usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_DST,
             label: None,
+            view_formats: &[],
         });
 
         let screen_texture = device.create_texture(&wgpu::TextureDescriptor {
@@ -309,6 +421,7 @@ impl PaletteScreenMode {
             format: wgpu::TextureFormat::Rgba8UnormSrgb,
             usage: wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::RENDER_ATTACHMENT,
             label: None,
+            view_formats: &[],
         });
 
         let framebuffer_texture_view =
@@ -415,7 +528,7 @@ impl PaletteScreenMode {
             &bytemuck::cast_slice(pixels),
             wgpu::ImageDataLayout {
                 offset: 0,
-                bytes_per_row: NonZeroU32::new(320),
+                bytes_per_row: Some(320),
                 rows_per_image: None,
             },
             wgpu::Extent3d {
@@ -437,7 +550,7 @@ impl PaletteScreenMode {
             &bytemuck::cast_slice(palette),
             wgpu::ImageDataLayout {
                 offset: 0,
-                bytes_per_row: NonZeroU32::new(256 * 4),
+                bytes_per_row: Some(256 * 4),
                 rows_per_image: None,
             },
             wgpu::Extent3d {

uw8-window/src/gpu/scale_mode.rs

@@ -0,0 +1,28 @@
+use winit::dpi::PhysicalSize;
+
+#[derive(Debug, Copy, Clone)]
+pub enum ScaleMode {
+    Fit,
+    Fill,
+}
+
+impl Default for ScaleMode {
+    fn default() -> ScaleMode {
+        ScaleMode::Fit
+    }
+}
+
+impl ScaleMode {
+    pub fn texture_scale_from_resolution(&self, res: PhysicalSize<u32>) -> [f32; 4] {
+        let scale = match self {
+            ScaleMode::Fit => ((res.width as f32) / 160.0).min((res.height as f32) / 120.0),
+            ScaleMode::Fill => ((res.width as f32) / 160.0).max((res.height as f32) / 120.0),
+        };
+        [
+            scale / res.width as f32,
+            scale / res.height as f32,
+            2.0 / scale,
+            0.0,
+        ]
+    }
+}

uw8-window/src/gpu/square.rs

@@ -1,7 +1,7 @@
 use wgpu::util::DeviceExt;
 use winit::dpi::PhysicalSize;
 
-use super::Filter;
+use super::{scale_mode::ScaleMode, Filter};
 
 pub struct SquareFilter {
     uniform_buffer: wgpu::Buffer,
@@ -15,9 +15,10 @@ impl SquareFilter {
         screen: &wgpu::TextureView,
         resolution: PhysicalSize<u32>,
         surface_format: wgpu::TextureFormat,
+        scale_mode: ScaleMode,
     ) -> SquareFilter {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(resolution),
+            texture_scale: scale_mode.texture_scale_from_resolution(resolution),
         };
 
         let uniform_buffer = device.create_buffer_init(&wgpu::util::BufferInitDescriptor {
@@ -126,9 +127,9 @@ impl SquareFilter {
 }
 
 impl Filter for SquareFilter {
-    fn resize(&self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>) {
+    fn resize(&mut self, queue: &wgpu::Queue, new_size: PhysicalSize<u32>, scale_mode: ScaleMode) {
         let uniforms = Uniforms {
-            texture_scale: texture_scale_from_resolution(new_size),
+            texture_scale: scale_mode.texture_scale_from_resolution(new_size),
         };
         queue.write_buffer(&self.uniform_buffer, 0, bytemuck::cast_slice(&[uniforms]));
     }
@@ -140,16 +141,6 @@ impl Filter for SquareFilter {
     }
 }
 
-fn texture_scale_from_resolution(res: PhysicalSize<u32>) -> [f32; 4] {
-    let scale = ((res.width as f32) / 160.0).min((res.height as f32) / 120.0);
-    [
-        scale / res.width as f32,
-        scale / res.height as f32,
-        2.0 / scale,
-        0.0,
-    ]
-}
-
 #[repr(C)]
 #[derive(Debug, Copy, Clone, bytemuck::Pod, bytemuck::Zeroable)]
 struct Uniforms {

uw8-window/src/lib.rs

@@ -1,24 +1,130 @@
+use anyhow::Result;
+use gpu::scale_mode::ScaleMode;
 use std::time::Instant;
 
 mod cpu;
 mod gpu;
 
-pub fn run<F: 'static + FnMut(&mut dyn Framebuffer, u32, bool) -> Instant>(
+pub struct Window {
-    gpu: bool,
+    inner: Box<dyn WindowImpl>,
-    update: F,
+    fps_counter: Option<FpsCounter>,
-) -> ! {
+}
-    if gpu {
+
-        match gpu::Window::new() {
+struct FpsCounter {
-            Ok(window) => window.run(Box::new(update)),
+    start: Instant,
+    num_frames: u32,
+}
+
+impl Window {
+    pub fn new(mut config: WindowConfig) -> Result<Window> {
+        let fps_counter = if config.fps_counter {
+            Some(FpsCounter {
+                start: Instant::now(),
+                num_frames: 0,
+            })
+        } else {
+            None
+        };
+        config.scale = config.scale.max(1.).min(20.);
+        if config.enable_gpu {
+            match gpu::Window::new(config) {
+                Ok(window) => {
+                    return Ok(Window {
+                        inner: Box::new(window),
+                        fps_counter,
+                    })
+                }
                 Err(err) => eprintln!(
-                "Failed to create gpu window: {}\nFalling back to cpu window",
+                    "Failed to create gpu window: {}\nFalling back tp cpu window",
                     err
                 ),
             }
         }
-    cpu::run(Box::new(update));
+        cpu::Window::new().map(|window| Window {
+            inner: Box::new(window),
+            fps_counter,
+        })
     }
 
-pub trait Framebuffer {
+    pub fn begin_frame(&mut self) -> Input {
-    fn update(&mut self, pixels: &[u8], palette: &[u8]);
+        self.inner.begin_frame()
+    }
+    pub fn end_frame(&mut self, framebuffer: &[u8], palette: &[u8], next_frame: Instant) {
+        self.inner.end_frame(framebuffer, palette, next_frame);
+        if let Some(ref mut fps_counter) = self.fps_counter {
+            fps_counter.num_frames += 1;
+            let elapsed = fps_counter.start.elapsed().as_secs_f32();
+            if elapsed >= 1.0 {
+                println!("fps: {:.1}", fps_counter.num_frames as f32 / elapsed);
+                fps_counter.num_frames = 0;
+                fps_counter.start = Instant::now();
+            }
+        }
+    }
+
+    pub fn is_open(&self) -> bool {
+        self.inner.is_open()
+    }
+}
+
+#[derive(Debug)]
+pub struct WindowConfig {
+    enable_gpu: bool,
+    filter: u32,
+    fullscreen: bool,
+    fps_counter: bool,
+    scale: f32,
+    scale_mode: ScaleMode,
+}
+
+impl Default for WindowConfig {
+    fn default() -> WindowConfig {
+        WindowConfig {
+            enable_gpu: true,
+            filter: 5,
+            fullscreen: false,
+            fps_counter: false,
+            scale: 2.,
+            scale_mode: ScaleMode::Fit,
+        }
+    }
+}
+
+impl WindowConfig {
+    pub fn parse_arguments(&mut self, args: &mut pico_args::Arguments) {
+        self.enable_gpu = !args.contains("--no-gpu");
+        if let Some(filter) = args.opt_value_from_str::<_, String>("--filter").unwrap() {
+            self.filter = match filter.as_str() {
+                "1" | "nearest" => 1,
+                "2" | "fast_crt" => 2,
+                "3" | "ss_crt" => 3,
+                "4" | "chromatic" => 4,
+                "5" | "auto_crt" => 5,
+                o => {
+                    println!("Unknown --filter '{}'", o);
+                    std::process::exit(1);
+                }
+            }
+        }
+        self.fullscreen = args.contains("--fullscreen");
+        self.fps_counter = args.contains("--fps");
+        self.scale = args
+            .opt_value_from_str("--scale")
+            .unwrap()
+            .unwrap_or(self.scale);
+        if args.contains("--scale-fill") {
+            self.scale_mode = ScaleMode::Fill;
+        }
+    }
+}
+
+pub struct Input {
+    pub gamepads: [u8; 4],
+    pub reset: bool,
+}
+
+trait WindowImpl {
+    fn begin_frame(&mut self) -> Input;
+    fn end_frame(&mut self, framebuffer: &[u8], palette: &[u8], next_frame: Instant);
+    fn is_open(&self) -> bool;
 }

uw8-window/src/main.rs

@@ -1,10 +1,13 @@
 use std::time::Instant;
+use uw8_window::WindowConfig;
 
 fn main() {
     env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("info")).init();
 
+    let mut args = pico_args::Arguments::from_env();
+
     let mut framebuffer = vec![0u8; 320 * 240];
-    let start_time = Instant::now();
+    let mut start_time = Instant::now();
 
     let mut palette = vec![0u32; 256];
     for i in 0..256 {
@@ -18,11 +21,19 @@ fn main() {
     let mut fps_start = Instant::now();
     let mut fps_counter = 0;
 
-    uw8_window::run(true, move |gpu_framebuffer, _gamepads, _reset| {
+    let mut window_config = WindowConfig::default();
-        for _ in 0..1 {
+    window_config.parse_arguments(&mut args);
-            draw_frame(&mut framebuffer, start_time.elapsed().as_secs_f32());
+
+    let mut window = uw8_window::Window::new(window_config).unwrap();
+
+    while window.is_open() {
+        let input = window.begin_frame();
+        if input.reset {
+            start_time = Instant::now();
         }
-        gpu_framebuffer.update(&framebuffer, bytemuck::cast_slice(&palette));
+        draw_frame(&mut framebuffer, start_time.elapsed().as_secs_f32());
+        window.end_frame(&framebuffer, bytemuck::cast_slice(&palette), Instant::now());
+
         fps_counter += 1;
         let elapsed = fps_start.elapsed().as_secs_f32();
         if elapsed >= 1.0 {
@@ -30,8 +41,7 @@ fn main() {
             fps_start = Instant::now();
             fps_counter = 0;
         }
-        Instant::now()
+    }
-    });
 }
 
 fn draw_frame(framebuffer: &mut [u8], time: f32) {

web/package.json

@@ -4,5 +4,6 @@
     "@parcel/optimizer-data-url": "^2.0.0",
     "@parcel/transformer-inline-string": "^2.0.0",
     "parcel": "^2.0.0"
-  }
+  },
+  "dependencies": {}
 }

web/src/audiolet.js

@@ -63,7 +63,7 @@ class APU extends AudioWorkletProcessor {
 
         this.memory = memory;
 
-        this.snd = instance.exports.snd || platform_instance.exports.gesSnd;
+        this.snd = instance.exports.snd || platform_instance.exports.sndGes;
 
         this.port.postMessage(2);
     }

web/src/index.html

@@ -10,7 +10,7 @@
     </head>
     <body>
         <div id="uw8">
-            <a href="https://exoticorn.github.io/microw8">MicroW8</a> 0.2.1
+            <a href="https://exoticorn.github.io/microw8">MicroW8</a> 0.4.1
         </div>
         <div id="centered">
             <canvas class="screen" id="screen" width="320" height="240">

web/src/microw8.js

@@ -240,6 +240,7 @@ export default function MicroW8(screen, config = {}) {
             await audioReadyPromise;
     
             let startTime = Date.now();
+            let frameCounter = 0;
     
             const timePerFrame = 1000 / 60;
 
@@ -263,6 +264,10 @@ export default function MicroW8(screen, config = {}) {
             window.addEventListener('blur', () => updateVisibility(false), { signal: abortController.signal });
             updateVisibility(document.hasFocus());
 
+            if (instance.exports.start) {
+                instance.exports.start();
+            }
+
             function mainloop() {
                 if (!keepRunning) {
                     return;
@@ -302,6 +307,7 @@ export default function MicroW8(screen, config = {}) {
                         let time = Date.now() - startTime;
                         u32Mem[16] = time;
                         u32Mem[17] = pad | gamepad;
+                        u32Mem[18] = frameCounter++;
                         if(instance.exports.upd) {
                             instance.exports.upd();
                         }