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feat: add gpu driven render graph pipeline

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Amp-Thread-ID: https://ampcode.com/threads/T-019f9d91-77c1-7206-a60f-ed6554ce92ab

Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
This commit is contained in:
Amp
2026-07-27 20:26:31 +00:00
co-authored by heaust
parent d4e8634f67
commit 05311e564c
51 changed files with 13262 additions and 743 deletions
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static/render-graph/browser-host.js
+13 -10
View File
@@ -10,10 +10,12 @@ const sizeCanvas = (canvas, value) => {
};
const mods = e => ({ alt:e.altKey, control:e.ctrlKey, meta:e.metaKey, shift:e.shiftKey });
export function prepareBrowserHost(canvas, { onError=console.error, chooseNodeType }={}) {
export function prepareBrowserHost(canvas, { onError=console.error, requestAddNode }={}) {
const ownerDocument=canvas.ownerDocument, ownerWindow=ownerDocument.defaultView ?? window;
const originalTabIndex=canvas.getAttribute("tabindex"), originalTouchAction=canvas.style.touchAction;
let view, dead=false, generation=0, resizing=false, pending, appliedViewport, menuPending=false, unsubscribeHost=()=>{};
let view, root, dead=false, generation=0, requestEpoch=0, resizing=false, pending, appliedViewport, menuPending=false, menuPoint, unsubscribeHost=()=>{};
const rootSubscriptions=[];
const invalidateAddNode=()=>{requestEpoch++;menuPending=false;requestAddNode?.close?.()};
const captured=new Set();
const initialViewport=viewport(canvas,ownerWindow); appliedViewport=initialViewport; sizeCanvas(canvas,initialViewport);
canvas.tabIndex=0; canvas.style.touchAction="none";
@@ -22,14 +24,14 @@ export function prepareBrowserHost(canvas, { onError=console.error, chooseNodeTy
if(!view)return;
if(e instanceof ownerWindow.PointerEvent){
const phase=e.type==="pointerdown"?"down":e.type==="pointermove"?"move":e.type==="pointerup"?"up":"cancel";
if(phase==="down"){menuPending=e.button===2&&!e.ctrlKey&&(e.buttons&1)===0;canvas.focus();try{canvas.setPointerCapture(e.pointerId);captured.add(e.pointerId)}catch{}}
if(phase==="down"){invalidateAddNode();menuPending=e.button===2&&!e.ctrlKey&&!e.altKey&&!e.metaKey&&!e.shiftKey&&(e.buttons&1)===0;menuPoint={x:e.clientX,y:e.clientY};canvas.focus();try{canvas.setPointerCapture(e.pointerId);captured.add(e.pointerId)}catch{}}
if((phase==="up"||phase==="cancel")&&captured.delete(e.pointerId))try{if(canvas.hasPointerCapture(e.pointerId))canvas.releasePointerCapture(e.pointerId)}catch{}
view.feedInput({kind:"pointer",phase,pointerId:e.pointerId,pointerType:e.pointerType,position:point(e),button:e.button,buttons:e.buttons,modifiers:mods(e)});
}else if(e instanceof ownerWindow.WheelEvent){
e.preventDefault(); menuPending=false;
e.preventDefault(); invalidateAddNode();
const scale=e.deltaMode===ownerWindow.WheelEvent.DOM_DELTA_LINE?16:e.deltaMode===ownerWindow.WheelEvent.DOM_DELTA_PAGE?Math.max(1,canvas.clientHeight):1;
view.feedInput({kind:"wheel",position:point(e),delta:{x:e.deltaX*scale,y:e.deltaY*scale},modifiers:mods(e)});
}else if(e instanceof ownerWindow.KeyboardEvent){menuPending=false;view.feedInput({kind:"key",phase:e.type==="keydown"?"down":"up",key:e.key,code:e.code,repeat:e.repeat,modifiers:mods(e)});
}else if(e instanceof ownerWindow.KeyboardEvent){invalidateAddNode();view.feedInput({kind:"key",phase:e.type==="keydown"?"down":"up",key:e.key,code:e.code,repeat:e.repeat,modifiers:mods(e)});
}else view.feedInput({kind:"focus",phase:e.type==="focus"?"focus":"blur"});
};
const names=["pointerdown","pointermove","pointerup","pointercancel","wheel","keydown","keyup","focus","blur"];
@@ -40,22 +42,23 @@ export function prepareBrowserHost(canvas, { onError=console.error, chooseNodeTy
resizing=true;
Promise.resolve(view.setViewport(next)).then(()=>{if(dead||currentGeneration!==generation)return;appliedViewport=next;sizeCanvas(canvas,next)}).catch(error=>{if(!dead&&currentGeneration===generation)onError(error)}).finally(()=>{if(dead||currentGeneration!==generation)return;resizing=false;pump()});
};
const resize=()=>{if(dead)return;pending=viewport(canvas,ownerWindow);pump()};
const resize=()=>{if(dead)return;invalidateAddNode();pending=viewport(canvas,ownerWindow);pump()};
const outside=e=>{if(view&&e.button===0&&e.target!==canvas&&!canvas.contains(e.target)&&view.getHostSnapshot().colorPickerOpen)view.feedInput({kind:"outside-pointer",button:0})};
const lost=e=>captured.delete(e.pointerId);
const observer=new ownerWindow.ResizeObserver(resize);
return {initialViewport,attach(_root,next){
view=next;
root=_root;view=next;
for(const n of names)canvas.addEventListener(n,input,{passive:n!=="wheel"});
canvas.addEventListener("contextmenu",prevent);canvas.addEventListener("lostpointercapture",lost);
ownerDocument.addEventListener("pointerdown",outside,true);ownerWindow.addEventListener("resize",resize);
unsubscribeHost=view.onHostRequests(request=>{if(request.kind!=="add-node-menu"||!menuPending)return;menuPending=false;const typeId=chooseNodeType?.(request);if(typeId)view.addNode({typeId,viewPosition:request.viewPosition}).catch(onError)});
unsubscribeHost=view.onHostRequests(request=>{if(request.kind!=="add-node-menu"||!menuPending||request.compositionRevision!==view.getHostSnapshot().compositionRevision){invalidateAddNode();return}menuPending=false;const epoch=requestEpoch;requestAddNode?.(request,menuPoint,()=>!dead&&epoch===requestEpoch);});
rootSubscriptions.push(root.onMutations(invalidateAddNode),root.onCompositionChanges(invalidateAddNode));
observer.observe(canvas);resize();
},destroy(){
if(dead)return;dead=true;generation++;pending=undefined;observer.disconnect();unsubscribeHost();ownerWindow.removeEventListener("resize",resize);ownerDocument.removeEventListener("pointerdown",outside,true);
if(dead)return;dead=true;generation++;pending=undefined;invalidateAddNode();observer.disconnect();unsubscribeHost();for(const unsubscribe of rootSubscriptions)unsubscribe();rootSubscriptions.length=0;ownerWindow.removeEventListener("resize",resize);ownerDocument.removeEventListener("pointerdown",outside,true);
for(const n of names)canvas.removeEventListener(n,input);canvas.removeEventListener("contextmenu",prevent);canvas.removeEventListener("lostpointercapture",lost);
for(const id of captured)try{if(canvas.hasPointerCapture(id))canvas.releasePointerCapture(id)}catch{}captured.clear();
if(originalTabIndex===null)canvas.removeAttribute("tabindex");else canvas.setAttribute("tabindex",originalTabIndex);canvas.style.touchAction=originalTouchAction;view=null;
if(originalTabIndex===null)canvas.removeAttribute("tabindex");else canvas.setAttribute("tabindex",originalTabIndex);canvas.style.touchAction=originalTouchAction;view=null;root=null;
}};
}
function prevent(e){e.preventDefault()}