5f0e95de13
The display list can now refer to canvas ids, but WebContent still had no channel for creating or updating those canvas resources in the Compositor. Both 2D and WebGL canvases would have had to grow the IPC plumbing in the same commit that changes the rendering contexts. This adds the Compositor-side CanvasHost, WebContent transport objects, and the IPC/CMake pieces needed to allocate, update, read back, and destroy remote canvas contexts. The rendering contexts are not switched over yet, keeping this as plumbing for later commits.
64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
/*
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* Copyright (c) 2026, 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 <Compositor/WebGLObjectMap.h>
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namespace Compositor {
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template<typename Value>
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static Value lookup_or_default(HashMap<Web::WebGL::WebGLObjectId, Value> const& map, Web::WebGL::WebGLObjectId id)
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{
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return map.get(id).value_or(Value {});
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}
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template<typename Value>
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static Value take_or_default(HashMap<Web::WebGL::WebGLObjectId, Value>& map, Web::WebGL::WebGLObjectId id)
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{
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return map.take(id).value_or(Value {});
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}
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template<typename Value>
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static ErrorOr<void> add_unique(HashMap<Web::WebGL::WebGLObjectId, Value>& map, Web::WebGL::WebGLObjectId id, Value value)
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{
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if (id == 0)
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return Error::from_string_literal("WebGL object id 0 is reserved");
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if (map.contains(id))
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return Error::from_string_literal("WebGL object id is already in use");
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map.set(id, value);
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return {};
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}
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GLuint WebGLObjectMap::lookup(Web::WebGL::WebGLObjectId id) const
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{
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return lookup_or_default(m_objects, id);
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}
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GLuint WebGLObjectMap::take(Web::WebGL::WebGLObjectId id)
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{
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return take_or_default(m_objects, id);
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}
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ErrorOr<void> WebGLObjectMap::add(Web::WebGL::WebGLObjectId id, GLuint name)
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{
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return add_unique(m_objects, id, name);
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}
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GLsync WebGLObjectMap::lookup_sync(Web::WebGL::WebGLObjectId id) const
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{
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return lookup_or_default(m_syncs, id);
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}
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GLsync WebGLObjectMap::take_sync(Web::WebGL::WebGLObjectId id)
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{
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return take_or_default(m_syncs, id);
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}
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ErrorOr<void> WebGLObjectMap::add_sync(Web::WebGL::WebGLObjectId id, GLsync sync)
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{
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return add_unique(m_syncs, id, sync);
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}
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}
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