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Compress combo rom (#615)

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GitHub pages, for whatever reason, doesn't compress the combo ROM and
instead serves it uncompressed. Therefore, we explicitly compress it
using the highest compression level at build time and explicitly
decompress it.

Previously we would download 14.69MB, now we download 7.84MB.
Approximately 50% savings.
This commit is contained in:
Corwin 2024-04-08 03:38:46 +01:00 committed by GitHub
parent 9b36ae62e0 b830410e39
commit 8ddc55284c
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GPG key ID: B5690EEEBB952194
4 changed files with 16 additions and 5 deletions
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1
justfile
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@ -110,6 +110,7 @@ build-site: build-combo-rom-site build-site-mgba-wrapper build-book
cp book/book website/build/book -r
cp website/app/build website/build/mgba -r
cp examples/target/examples/combo.gba website/build/assets/combo.gba
gzip -9 -c website/build/assets/combo.gba > website/build/assets/combo.gba.gz
_run-tool +tool:
(cd tools && cargo build)

17
website/app/src/mgba.tsx
View file

@ -41,6 +41,19 @@ export interface MgbaHandle {
buttonRelease: (key: GbaKey) => void;
}
const downloadGame = async (gameUrl: string): Promise<ArrayBuffer> => {
const game = await fetch(gameUrl);
if (gameUrl.endsWith(".gz")) {
const decompressedStream = (await game.blob())
.stream()
.pipeThrough(new DecompressionStream("gzip"));
return await new Response(decompressedStream).arrayBuffer();
} else {
return await game.arrayBuffer();
}
};
export const Mgba = forwardRef<MgbaHandle, MgbaProps>(
({ gameUrl, volume, controls, paused }, ref) => {
const canvas = useRef(null);
@ -52,9 +65,7 @@ export const Mgba = forwardRef<MgbaHandle, MgbaProps>(
useEffect(() => {
if (state !== MgbaState.Initialised) return;
(async () => {
const game = await fetch(gameUrl);
const gameData = await game.arrayBuffer();
const gameData = await downloadGame(gameUrl);
const gameSplit = gameUrl.split("/");
const gameBaseName = gameSplit[gameSplit.length - 1];

1
website/app/src/useFrameSkip.hook.ts
View file

@ -14,7 +14,6 @@ export const useFrameSkip = (mgbaModule: MutableRefObject<mGBAEmulator>) => {
const raf = (time: DOMHighResTimeStamp) => {
if (previous) {
const delta = time - previous;
console.log(delta);
smoothedFrameTime = (smoothedFrameTime * 3 + delta) / 4;

2
website/site/index.html
View file

@ -155,7 +155,7 @@
<iframe
id="gameFrame"
onload="this.contentWindow.focus()"
src="mgba/index.html#/assets/combo.gba"
src="mgba/index.html#/assets/combo.gba.gz"
></iframe>
<div class="imageWrapper"><img src="assets/right.png" /></div>
</div>