a80babffb6
Canvas rendering is a major remaining path where WebContent directly owns GPU-facing drawing state. Back 2D and WebGL canvas contexts with remote Compositor transports, so WebContent talks to canvas surfaces through IPC while the Compositor owns the rasterization resources. This is a large step toward GPU sandboxing because canvas GPU work now lives behind the Compositor boundary. It also gives OffscreenCanvas the process-independent canvas plumbing that HTMLCanvasElement now uses, making worker-owned canvases possible without another WebContent-local rendering path.
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
/*
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@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 <LibJS/Runtime/Realm.h>
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#include <LibWeb/Bindings/ANGLEInstancedArrays.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/WebGL/Extensions/ANGLEInstancedArrays.h>
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#include <LibWeb/WebGL/WebGLContextProxy.h>
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#include <LibWeb/WebGL/WebGLRenderingContextBase.h>
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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namespace Web::WebGL {
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GC_DEFINE_ALLOCATOR(ANGLEInstancedArrays);
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JS::ThrowCompletionOr<GC::Ref<JS::Object>> ANGLEInstancedArrays::create(JS::Realm& realm, GC::Ref<WebGLRenderingContextBase> context)
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{
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return realm.create<ANGLEInstancedArrays>(realm, context);
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}
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ANGLEInstancedArrays::ANGLEInstancedArrays(JS::Realm& realm, GC::Ref<WebGLRenderingContextBase> context)
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: PlatformObject(realm)
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, m_context(context)
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{
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}
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void ANGLEInstancedArrays::vertex_attrib_divisor_angle(GLuint index, GLuint divisor)
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{
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m_context->context().make_current();
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m_context->context().vertex_attrib_divisor_angle(index, divisor);
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}
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void ANGLEInstancedArrays::draw_arrays_instanced_angle(GLenum mode, GLint first, GLsizei count, GLsizei primcount)
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{
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m_context->context().make_current();
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m_context->context().draw_arrays_instanced_angle(mode, first, count, primcount);
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}
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void ANGLEInstancedArrays::draw_elements_instanced_angle(GLenum mode, GLsizei count, GLenum type, GLintptr offset, GLsizei primcount)
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{
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m_context->context().make_current();
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m_context->context().draw_elements_instanced_angle(mode, count, type, reinterpret_cast<void*>(offset), primcount);
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}
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void ANGLEInstancedArrays::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(ANGLEInstancedArrays);
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Base::initialize(realm);
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}
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void ANGLEInstancedArrays::visit_edges(Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_context);
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}
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}
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