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Diffstat (limited to 'ext/webgpu/02_surface.js')
| -rw-r--r-- | ext/webgpu/02_surface.js | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/ext/webgpu/02_surface.js b/ext/webgpu/02_surface.js new file mode 100644 index 000000000..515f2eec1 --- /dev/null +++ b/ext/webgpu/02_surface.js @@ -0,0 +1,235 @@ +// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license. + +// @ts-check +/// <reference path="../../core/lib.deno_core.d.ts" /> +/// <reference path="../web/internal.d.ts" /> +/// <reference path="../web/lib.deno_web.d.ts" /> +/// <reference path="./lib.deno_webgpu.d.ts" /> + +import { core, primordials } from "ext:core/mod.js"; +const ops = core.ops; +import * as webidl from "ext:deno_webidl/00_webidl.js"; +import { createFilteredInspectProxy } from "ext:deno_console/01_console.js"; +const { Symbol, SymbolFor, ObjectPrototypeIsPrototypeOf } = primordials; +import { + _device, + assertDevice, + createGPUTexture, + GPUTextureUsage, +} from "ext:deno_webgpu/01_webgpu.js"; + +const _surfaceRid = Symbol("[[surfaceRid]]"); +const _configuration = Symbol("[[configuration]]"); +const _canvas = Symbol("[[canvas]]"); +const _currentTexture = Symbol("[[currentTexture]]"); +class GPUCanvasContext { + /** @type {number} */ + [_surfaceRid]; + /** @type {InnerGPUDevice} */ + [_device]; + [_configuration]; + [_canvas]; + /** @type {GPUTexture | undefined} */ + [_currentTexture]; + + get canvas() { + webidl.assertBranded(this, GPUCanvasContextPrototype); + return this[_canvas]; + } + + constructor() { + webidl.illegalConstructor(); + } + + configure(configuration) { + webidl.assertBranded(this, GPUCanvasContextPrototype); + const prefix = "Failed to execute 'configure' on 'GPUCanvasContext'"; + webidl.requiredArguments(arguments.length, 1, { prefix }); + configuration = webidl.converters.GPUCanvasConfiguration(configuration, { + prefix, + context: "Argument 1", + }); + + this[_device] = configuration.device[_device]; + this[_configuration] = configuration; + const device = assertDevice(this, { + prefix, + context: "configuration.device", + }); + + const { err } = ops.op_webgpu_surface_configure({ + surfaceRid: this[_surfaceRid], + deviceRid: device.rid, + format: configuration.format, + viewFormats: configuration.viewFormats, + usage: configuration.usage, + width: configuration.width, + height: configuration.height, + alphaMode: configuration.alphaMode, + }); + + device.pushError(err); + } + + unconfigure() { + webidl.assertBranded(this, GPUCanvasContextPrototype); + + this[_configuration] = null; + this[_device] = null; + } + + getCurrentTexture() { + webidl.assertBranded(this, GPUCanvasContextPrototype); + const prefix = + "Failed to execute 'getCurrentTexture' on 'GPUCanvasContext'"; + + if (this[_configuration] === null) { + throw new DOMException("context is not configured.", "InvalidStateError"); + } + + const device = assertDevice(this, { prefix, context: "this" }); + + if (this[_currentTexture]) { + return this[_currentTexture]; + } + + const { rid } = ops.op_webgpu_surface_get_current_texture( + device.rid, + this[_surfaceRid], + ); + + const texture = createGPUTexture( + { + size: { + width: this[_configuration].width, + height: this[_configuration].height, + depthOrArrayLayers: 1, + }, + mipLevelCount: 1, + sampleCount: 1, + dimension: "2d", + format: this[_configuration].format, + usage: this[_configuration].usage, + }, + device, + rid, + ); + device.trackResource(texture); + this[_currentTexture] = texture; + return texture; + } + + // Extended from spec. Required to present the texture; browser don't need this. + present() { + webidl.assertBranded(this, GPUCanvasContextPrototype); + const prefix = "Failed to execute 'present' on 'GPUCanvasContext'"; + const device = assertDevice(this[_currentTexture], { + prefix, + context: "this", + }); + ops.op_webgpu_surface_present(device.rid, this[_surfaceRid]); + this[_currentTexture].destroy(); + this[_currentTexture] = undefined; + } + + [SymbolFor("Deno.privateCustomInspect")](inspect, inspectOptions) { + return inspect( + createFilteredInspectProxy({ + object: this, + evaluate: ObjectPrototypeIsPrototypeOf(GPUCanvasContextPrototype, this), + keys: [ + "canvas", + ], + }), + inspectOptions, + ); + } +} +const GPUCanvasContextPrototype = GPUCanvasContext.prototype; + +function createCanvasContext(options) { + const canvasContext = webidl.createBranded(GPUCanvasContext); + canvasContext[_surfaceRid] = options.surfaceRid; + canvasContext[_canvas] = options.canvas; + return canvasContext; +} + +// Converters + +// ENUM: GPUCanvasAlphaMode +webidl.converters["GPUCanvasAlphaMode"] = webidl.createEnumConverter( + "GPUCanvasAlphaMode", + [ + "opaque", + "premultiplied", + ], +); + +// NON-SPEC: ENUM: GPUPresentMode +webidl.converters["GPUPresentMode"] = webidl.createEnumConverter( + "GPUPresentMode", + [ + "autoVsync", + "autoNoVsync", + "fifo", + "fifoRelaxed", + "immediate", + "mailbox", + ], +); + +// DICT: GPUCanvasConfiguration +const dictMembersGPUCanvasConfiguration = [ + { key: "device", converter: webidl.converters.GPUDevice, required: true }, + { + key: "format", + converter: webidl.converters.GPUTextureFormat, + required: true, + }, + { + key: "usage", + converter: webidl.converters["GPUTextureUsageFlags"], + defaultValue: GPUTextureUsage.RENDER_ATTACHMENT, + }, + { + key: "alphaMode", + converter: webidl.converters["GPUCanvasAlphaMode"], + defaultValue: "opaque", + }, + + // Extended from spec + { + key: "presentMode", + converter: webidl.converters["GPUPresentMode"], + }, + { + key: "width", + converter: webidl.converters["long"], + required: true, + }, + { + key: "height", + converter: webidl.converters["long"], + required: true, + }, + { + key: "viewFormats", + converter: webidl.createSequenceConverter( + webidl.converters["GPUTextureFormat"], + ), + get defaultValue() { + return []; + }, + }, +]; +webidl.converters["GPUCanvasConfiguration"] = webidl + .createDictionaryConverter( + "GPUCanvasConfiguration", + dictMembersGPUCanvasConfiguration, + ); + +window.__bootstrap.webgpu = { + ...window.__bootstrap.webgpu, + GPUCanvasContext, + createCanvasContext, +}; |