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LibWeb/WebGL: Add initial implementation of texImage2D with image source

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This commit is contained in:
Luke Wilde 2024-12-05 13:15:36 +00:00 • committed by Alexander Kalenik
commit a65a981a6b
Notes: github-actions[bot] 2024-12-05 20:43:12 +00:00
2 changed files with 58 additions and 3 deletions
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50
Meta/Lagom/Tools/CodeGenerators/LibWeb/GenerateWebGLRenderingContext.cpp
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@ -280,6 +280,11 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
implementation_file_generator.append(R"~~~(
#include <LibJS/Runtime/ArrayBuffer.h>
#include <LibJS/Runtime/TypedArray.h>
#include <LibWeb/HTML/HTMLCanvasElement.h>
#include <LibWeb/HTML/HTMLImageElement.h>
#include <LibWeb/HTML/HTMLVideoElement.h>
#include <LibWeb/HTML/ImageBitmap.h>
#include <LibWeb/HTML/ImageData.h>
#include <LibWeb/WebGL/OpenGLContext.h>
#include <LibWeb/WebGL/WebGLActiveInfo.h>
#include <LibWeb/WebGL/WebGLBuffer.h>
@ -322,8 +327,6 @@ WebGLRenderingContextImpl::WebGLRenderingContextImpl(JS::Realm& realm, NonnullOw
#include <LibGfx/Bitmap.h>
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/Forward.h>
#include <LibWeb/HTML/HTMLCanvasElement.h>
#include <LibWeb/HTML/HTMLImageElement.h>
#include <LibWeb/WebIDL/Types.h>
namespace Web::WebGL {
@ -473,6 +476,49 @@ public:
continue;
}
if (function.name == "texImage2D"sv && function.overload_index == 1) {
// FIXME: If this function is called with an ImageData whose data attribute has been neutered,
// an INVALID_VALUE error is generated.
// FIXME: If this function is called with an ImageBitmap that has been neutered, an INVALID_VALUE
// error is generated.
// FIXME: If this function is called with an HTMLImageElement or HTMLVideoElement whose origin
// differs from the origin of the containing Document, or with an HTMLCanvasElement,
// ImageBitmap or OffscreenCanvas whose bitmap's origin-clean flag is set to false,
// a SECURITY_ERR exception must be thrown. See Origin Restrictions.
// FIXME: If source is null then an INVALID_VALUE error is generated.
function_impl_generator.append(R"~~~(
auto bitmap = source.visit(
[](GC::Root<HTMLImageElement> const& source) -> RefPtr<Gfx::ImmutableBitmap> {
return source->immutable_bitmap();
},
[](GC::Root<HTMLCanvasElement> const& source) -> RefPtr<Gfx::ImmutableBitmap> {
auto surface = source->surface();
if (!surface)
return {};
auto bitmap = MUST(Gfx::Bitmap::create(Gfx::BitmapFormat::RGBA8888, Gfx::AlphaType::Premultiplied, surface->size()));
surface->read_into_bitmap(*bitmap);
return Gfx::ImmutableBitmap::create(*bitmap);
},
[](GC::Root<HTMLVideoElement> const& source) -> RefPtr<Gfx::ImmutableBitmap> {
return Gfx::ImmutableBitmap::create(*source->bitmap());
},
[](GC::Root<ImageBitmap> const& source) -> RefPtr<Gfx::ImmutableBitmap> {
return Gfx::ImmutableBitmap::create(*source->bitmap());
},
[](GC::Root<ImageData> const& source) -> RefPtr<Gfx::ImmutableBitmap> {
return Gfx::ImmutableBitmap::create(source->bitmap());
});
if (!bitmap)
return;
void const* pixels_ptr = bitmap->bitmap()->begin();
int width = bitmap->width();
int height = bitmap->height();
glTexImage2D(target, level, internalformat, width, height, 0, format, type, pixels_ptr);
)~~~");
continue;
}
if (function.name == "getShaderParameter"sv) {
function_impl_generator.append(R"~~~(
GLint result = 0;