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LibWeb: Add stubbed-out WebGL2RenderingContext

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This commit is contained in:
Andrew Kaster 2024-12-05 20:56:18 -07:00 • committed by Alexander Kalenik
commit af536e1192
Notes: github-actions[bot] 2024-12-06 14:36:41 +00:00
19 changed files with 851 additions and 17 deletions
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35
Libraries/LibWeb/HTML/HTMLCanvasElement.cpp
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@ -25,6 +25,7 @@
#include <LibWeb/HTML/TraversableNavigable.h>
#include <LibWeb/Layout/CanvasBox.h>
#include <LibWeb/Platform/EventLoopPlugin.h>
#include <LibWeb/WebGL/WebGL2RenderingContext.h>
#include <LibWeb/WebGL/WebGLRenderingContext.h>
#include <LibWeb/WebIDL/AbstractOperations.h>
@ -57,6 +58,9 @@ void HTMLCanvasElement::visit_edges(Cell::Visitor& visitor)
[&](GC::Ref<WebGL::WebGLRenderingContext>& context) {
visitor.visit(context);
},
[&](GC::Ref<WebGL::WebGL2RenderingContext>& context) {
visitor.visit(context);
},
[](Empty) {
});
}
@ -124,6 +128,9 @@ void HTMLCanvasElement::reset_context_to_default_state()
[](GC::Ref<WebGL::WebGLRenderingContext>& context) {
context->reset_to_default_state();
},
[](GC::Ref<WebGL::WebGL2RenderingContext>& context) {
context->reset_to_default_state();
},
[](Empty) {
// Do nothing.
});
@ -138,6 +145,9 @@ void HTMLCanvasElement::notify_context_about_canvas_size_change()
[&](GC::Ref<WebGL::WebGLRenderingContext>& context) {
context->set_size(bitmap_size_for_canvas());
},
[&](GC::Ref<WebGL::WebGL2RenderingContext>& context) {
context->set_size(bitmap_size_for_canvas());
},
[](Empty) {
// Do nothing.
});
@ -186,16 +196,17 @@ HTMLCanvasElement::HasOrCreatedContext HTMLCanvasElement::create_2d_context()
return HasOrCreatedContext::Yes;
}
template<typename ContextType>
JS::ThrowCompletionOr<HTMLCanvasElement::HasOrCreatedContext> HTMLCanvasElement::create_webgl_context(JS::Value options)
{
if (!m_context.has<Empty>())
return m_context.has<GC::Ref<WebGL::WebGLRenderingContext>>() ? HasOrCreatedContext::Yes : HasOrCreatedContext::No;
return m_context.has<GC::Ref<ContextType>>() ? HasOrCreatedContext::Yes : HasOrCreatedContext::No;
auto maybe_context = TRY(WebGL::WebGLRenderingContext::create(realm(), *this, options));
auto maybe_context = TRY(ContextType::create(realm(), *this, options));
if (!maybe_context)
return HasOrCreatedContext::No;
m_context = GC::Ref<WebGL::WebGLRenderingContext>(*maybe_context);
m_context = GC::Ref<ContextType>(*maybe_context);
return HasOrCreatedContext::Yes;
}
@ -220,12 +231,19 @@ JS::ThrowCompletionOr<HTMLCanvasElement::RenderingContext> HTMLCanvasElement::ge
// NOTE: The WebGL spec says "experimental-webgl" is also acceptable and must be equivalent to "webgl". Other engines accept this, so we do too.
if (type.is_one_of("webgl"sv, "experimental-webgl"sv)) {
if (TRY(create_webgl_context(options)) == HasOrCreatedContext::Yes)
if (TRY(create_webgl_context<WebGL::WebGLRenderingContext>(options)) == HasOrCreatedContext::Yes)
return GC::make_root(*m_context.get<GC::Ref<WebGL::WebGLRenderingContext>>());
return Empty {};
}
if (type == "webgl2"sv) {
if (TRY(create_webgl_context<WebGL::WebGL2RenderingContext>(options)) == HasOrCreatedContext::Yes)
return GC::make_root(*m_context.get<GC::Ref<WebGL::WebGL2RenderingContext>>());
return Empty {};
}
return Empty {};
}
@ -380,6 +398,9 @@ void HTMLCanvasElement::present()
[](GC::Ref<WebGL::WebGLRenderingContext>& context) {
context->present();
},
[](GC::Ref<WebGL::WebGL2RenderingContext>& context) {
context->present();
},
[](Empty) {
// Do nothing.
});
@ -394,6 +415,9 @@ RefPtr<Gfx::PaintingSurface> HTMLCanvasElement::surface() const
[&](GC::Ref<WebGL::WebGLRenderingContext> const& context) -> RefPtr<Gfx::PaintingSurface> {
return context->surface();
},
[&](GC::Ref<WebGL::WebGL2RenderingContext> const& context) -> RefPtr<Gfx::PaintingSurface> {
return context->surface();
},
[](Empty) -> RefPtr<Gfx::PaintingSurface> {
return {};
});
@ -408,6 +432,9 @@ void HTMLCanvasElement::allocate_painting_surface_if_needed()
[&](GC::Ref<WebGL::WebGLRenderingContext>& context) {
context->allocate_painting_surface_if_needed();
},
[&](GC::Ref<WebGL::WebGL2RenderingContext>& context) {
context->allocate_painting_surface_if_needed();
},
[](Empty) {
// Do nothing.
});