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8.6 KiB
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8.6 KiB
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{"ast":null,"code":"import { statsBuffer } from '../stats/buffer.mjs';\nfunction createRenderStep(runNextFrame, stepName) {\n /**\n * We create and reuse two queues, one to queue jobs for the current frame\n * and one for the next. We reuse to avoid triggering GC after x frames.\n */\n let thisFrame = new Set();\n let nextFrame = new Set();\n /**\n * Track whether we're currently processing jobs in this step. This way\n * we can decide whether to schedule new jobs for this frame or next.\n */\n let isProcessing = false;\n let flushNextFrame = false;\n /**\n * A set of processes which were marked keepAlive when scheduled.\n */\n const toKeepAlive = new WeakSet();\n let latestFrameData = {\n delta: 0.0,\n timestamp: 0.0,\n isProcessing: false\n };\n let numCalls = 0;\n function triggerCallback(callback) {\n if (toKeepAlive.has(callback)) {\n step.schedule(callback);\n runNextFrame();\n }\n numCalls++;\n callback(latestFrameData);\n }\n const step = {\n /**\n * Schedule a process to run on the next frame.\n */\n schedule: function (callback) {\n let keepAlive = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;\n let immediate = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;\n const addToCurrentFrame = immediate && isProcessing;\n const queue = addToCurrentFrame ? thisFrame : nextFrame;\n if (keepAlive) toKeepAlive.add(callback);\n if (!queue.has(callback)) queue.add(callback);\n return callback;\n },\n /**\n * Cancel the provided callback from running on the next frame.\n */\n cancel: callback => {\n nextFrame.delete(callback);\n toKeepAlive.delete(callback);\n },\n /**\n * Execute all schedule callbacks.\n */\n process: frameData => {\n latestFrameData = frameData;\n /**\n * If we're already processing we've probably been triggered by a flushSync\n * inside an existing process. Instead of executing, mark flushNextFrame\n * as true and ensure we flush the following frame at the end of this one.\n */\n if (isProcessing) {\n flushNextFrame = true;\n return;\n }\n isProcessing = true;\n [thisFrame, nextFrame] = [nextFrame, thisFrame];\n // Execute this frame\n thisFrame.forEach(triggerCallback);\n /**\n * If we're recording stats then\n */\n if (stepName && statsBuffer.value) {\n statsBuffer.value.frameloop[stepName].push(numCalls);\n }\n numCalls = 0;\n // Clear the frame so no callbacks remain. This is to avoid\n // memory leaks should this render step not run for a while.\n thisFrame.clear();\n isProcessing = false;\n if (flushNextFrame) {\n flushNextFrame = false;\n step.process(frameData);\n }\n }\n };\n return step;\n}\nexport { createRenderStep };","map":{"version":3,"names":["statsBuffer","createRenderStep","runNextFrame","stepName","thisFrame","Set","nextFrame","isProcessing","flushNextFrame","toKeepAlive","WeakSet","latestFrameData","delta","timestamp","numCalls","triggerCallback","callback","has","step","schedule","keepAlive","arguments","length","undefined","immediate","addToCurrentFrame","queue","add","cancel","delete","process","frameData","forEach","value","frameloop","push","clear"],"sources":["/Users/apple/Documents/cursor/Web课件/AI课/education_web_多Agent协作系统/node_modules/motion-dom/dist/es/frameloop/render-step.mjs"],"sourcesContent":["import { statsBuffer } from '../stats/buffer.mjs';\n\nfunction createRenderStep(runNextFrame, stepName) {\n /**\n * We create and reuse two queues, one to queue jobs for the current frame\n * and one for the next. We reuse to avoid triggering GC after x frames.\n */\n let thisFrame = new Set();\n let nextFrame = new Set();\n /**\n * Track whether we're currently processing jobs in this step. This way\n * we can decide whether to schedule new jobs for this frame or n
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