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LibWeb/WebGL: Implement WEBGL_compressed_texture_s3tc extension

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Luke Wilde 2025-01-28 18:25:26 +00:00 • committed by Andreas Kling
parent 484008d440
commit 958938655d
Notes: github-actions[bot] 2025-02-09 00:01:44 +00:00
11 changed files with 137 additions and 2 deletions
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26
Libraries/LibWeb/WebGL/WebGL2RenderingContext.cpp
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@ -12,8 +12,10 @@
#include <LibWeb/Bindings/WebGL2RenderingContextPrototype.h>
#include <LibWeb/HTML/HTMLCanvasElement.h>
#include <LibWeb/HTML/TraversableNavigable.h>
#include <LibWeb/Infra/Strings.h>
#include <LibWeb/Painting/Paintable.h>
#include <LibWeb/WebGL/EventNames.h>
#include <LibWeb/WebGL/Extensions/WebGLCompressedTextureS3tc.h>
#include <LibWeb/WebGL/OpenGLContext.h>
#include <LibWeb/WebGL/WebGL2RenderingContext.h>
#include <LibWeb/WebGL/WebGLContextEvent.h>
@ -71,6 +73,7 @@ void WebGL2RenderingContext::visit_edges(Cell::Visitor& visitor)
Base::visit_edges(visitor);
WebGL2RenderingContextImpl::visit_edges(visitor);
visitor.visit(m_canvas_element);
visitor.visit(m_webgl_compressed_texture_s3tc_extension);
}
void WebGL2RenderingContext::present()
@ -154,8 +157,29 @@ Optional<Vector<String>> WebGL2RenderingContext::get_supported_extensions()
return context().get_supported_extensions();
}
JS::Object* WebGL2RenderingContext::get_extension(String const&)
JS::Object* WebGL2RenderingContext::get_extension(String const& name)
{
// Returns an object if, and only if, name is an ASCII case-insensitive match [HTML] for one of the names returned
// from getSupportedExtensions; otherwise, returns null. The object returned from getExtension contains any constants
// or functions provided by the extension. A returned object may have no constants or functions if the extension does
// not define any, but a unique object must still be returned. That object is used to indicate that the extension has
// been enabled.
auto supported_extensions = get_supported_extensions();
auto supported_extension_iterator = supported_extensions->find_if([&name](String const& supported_extension) {
return Infra::is_ascii_case_insensitive_match(supported_extension, name);
});
if (supported_extension_iterator == supported_extensions->end())
return nullptr;
if (Infra::is_ascii_case_insensitive_match(name, "WEBGL_compressed_texture_s3tc"sv)) {
if (!m_webgl_compressed_texture_s3tc_extension) {
m_webgl_compressed_texture_s3tc_extension = MUST(Extensions::WebGLCompressedTextureS3tc::create(realm(), this));
}
VERIFY(m_webgl_compressed_texture_s3tc_extension);
return m_webgl_compressed_texture_s3tc_extension;
}
return nullptr;
}