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https://github.com/LadybirdBrowser/ladybird
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Previously, the LibWeb bindings generator would output multiple per interface files like Prototype/Constructor/Namespace/GlobalMixin depending on the contents of that IDL file. This complicates the build system as it means that it does not know what files will be generated without knowledge of the contents of that IDL file. Instead, for each IDL file only generate a single Bindings/<IDLFile>.h and Bindings/<IDLFile>.cpp.
83 lines
3.8 KiB
C++
83 lines
3.8 KiB
C++
/*
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* Copyright (c) 2025, Psychpsyo <psychpsyo@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/XRWebGLLayer.h>
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#include <LibWeb/WebGL/WebGL2RenderingContext.h>
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#include <LibWeb/WebGL/WebGLRenderingContext.h>
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#include <LibWeb/WebGL/WebGLRenderingContextBase.h>
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#include <LibWeb/WebXR/XRWebGLLayer.h>
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namespace Web::WebXR {
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GC_DEFINE_ALLOCATOR(XRWebGLLayer);
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XRWebGLLayer::XRWebGLLayer(JS::Realm& realm)
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: XRLayer(realm)
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{
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}
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GC::Ref<XRWebGLLayer> XRWebGLLayer::create(JS::Realm& realm)
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{
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return realm.create<XRWebGLLayer>(realm);
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}
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// https://immersive-web.github.io/webxr/#dom-xrwebgllayer-xrwebgllayer
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WebIDL::ExceptionOr<GC::Ref<XRWebGLLayer>> XRWebGLLayer::construct_impl(JS::Realm& realm, XRSession const& session, XRWebGLRenderingContext const& context, XRWebGLLayerInit const& layer_init)
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{
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// 1. Let layer be a new XRWebGLLayer in the relevant realm of session.
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auto layer = create(realm);
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// 2. If session’s ended value is true, throw an InvalidStateError and abort these steps.
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if (session.ended())
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return WebIDL::InvalidStateError::create(realm, "The XRSession has ended."_utf16);
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// 3. If context is lost, throw an InvalidStateError and abort these steps.
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auto* contextBase = context.visit([](auto p) { return static_cast<WebGL::WebGLRenderingContextBase*>(&*p); });
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if (contextBase->is_context_lost())
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return WebIDL::InvalidStateError::create(realm, "The context has been lost."_utf16);
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// 4. If session is an immersive session and context’s XR compatible boolean is false, throw an InvalidStateError
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// and abort these steps.
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if (session.is_immersive() && !contextBase->xr_compatible())
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return WebIDL::InvalidStateError::create(realm, "The XRSession is an immersive one, but the context is not XR-compatible."_utf16);
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// FIXME: Implement all of these.
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(void)layer_init;
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// 5. Initialize layer’s context to context.
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// 6. Initialize layer’s session to session.
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// 7. Initialize layer’s ignoreDepthValues as follows:
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// 8. Initialize layer’s composition enabled boolean as follows:
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// -> If session is an inline session:
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// Initialize layer’s composition enabled to false.
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// -> Otherwise:
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// Initialize layer’s composition enabled boolean to true.
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// 9.-> If layer’s composition enabled boolean is true:
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// 1. Initialize layer’s antialias to layerInit’s antialias value.
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// 2. Let scaleFactor be layerInit’s framebufferScaleFactor.
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// 3. The user agent MAY choose to clamp or round scaleFactor as it sees fit here, for example if it wishes to fit
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// the buffer dimensions into a power of two for performance reasons.
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// 4. Let framebufferSize be the recommended WebGL framebuffer resolution with width and height separately
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// multiplied by scaleFactor.
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// 5. Initialize layer’s framebuffer to a new WebGLFramebuffer in the relevant realm of context, which is an opaque
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// framebuffer with the dimensions framebufferSize created with context, session initialized to session, and
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// layerInit’s depth, stencil, and alpha values.
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// 6. Allocate and initialize resources compatible with session’s XR device, including GPU accessible memory
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// buffers, as required to support the compositing of layer.
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// 7. If layer’s resources were unable to be created for any reason, throw an OperationError and abort these steps.
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// Otherwise:
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// 1. Initialize layer’s antialias to layer’s context’s actual context parameters antialias value.
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// 2. Initialize layer’s framebuffer to null.
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return layer;
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}
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void XRWebGLLayer::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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}
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}
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