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LibWeb: Add DOMMatrix fromFloat32Array and fromFloat64Array

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Bastiaan van der Plaat 2023-09-25 22:11:30 +02:00 • committed by Andrew Kaster
parent 2e122b16e4
commit 3c27843cfe
9 changed files with 146 additions and 13 deletions
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51
Userland/Libraries/LibWeb/Geometry/DOMMatrixReadOnly.cpp
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@ -5,7 +5,6 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/ArrayBuffer.h>
#include <LibJS/Runtime/TypedArray.h>
#include <LibWeb/Bindings/Intrinsics.h>
#include <LibWeb/Geometry/DOMMatrix.h>
@ -208,6 +207,56 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<DOMMatrixReadOnly>> DOMMatrixReadOnly::from
return create_from_dom_matrix_init(*vm.current_realm(), other);
}
// https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-fromfloat32array
WebIDL::ExceptionOr<JS::NonnullGCPtr<DOMMatrixReadOnly>> DOMMatrixReadOnly::from_float32_array(JS::VM& vm, JS::Handle<JS::Object> const& array32)
{
if (!is<JS::Float32Array>(*array32))
return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Float32Array");
auto& realm = *vm.current_realm();
auto& float32_array = static_cast<JS::Float32Array&>(*array32);
ReadonlySpan<float> elements = float32_array.data();
// If array32 has 6 elements, return the result of invoking create a 2d matrix of type DOMMatrixReadOnly or DOMMatrix as appropriate, with a sequence of numbers taking the values from array32 in the provided order.
if (elements.size() == 6)
return realm.heap().allocate<DOMMatrix>(realm, realm, elements.at(0), elements.at(1), elements.at(2), elements.at(3), elements.at(4), elements.at(5));
// If array32 has 16 elements, return the result of invoking create a 3d matrix of type DOMMatrixReadOnly or DOMMatrix as appropriate, with a sequence of numbers taking the values from array32 in the provided order.
if (elements.size() == 16)
return realm.heap().allocate<DOMMatrix>(realm, realm, elements.at(0), elements.at(1), elements.at(2), elements.at(3),
elements.at(4), elements.at(5), elements.at(6), elements.at(7),
elements.at(8), elements.at(9), elements.at(10), elements.at(11),
elements.at(12), elements.at(13), elements.at(14), elements.at(15));
// Otherwise, throw a TypeError exception.
return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "Expected a Float32Array argument with 6 or 16 elements"_string };
}
// https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-fromfloat64array
WebIDL::ExceptionOr<JS::NonnullGCPtr<DOMMatrixReadOnly>> DOMMatrixReadOnly::from_float64_array(JS::VM& vm, JS::Handle<JS::Object> const& array64)
{
if (!is<JS::Float64Array>(*array64))
return vm.throw_completion<JS::TypeError>(JS::ErrorType::NotAnObjectOfType, "Float64Array");
auto& realm = *vm.current_realm();
auto& float64_array = static_cast<JS::Float64Array&>(*array64);
ReadonlySpan<double> elements = float64_array.data();
// If array64 has 6 elements, return the result of invoking create a 2d matrix of type DOMMatrixReadOnly or DOMMatrix as appropriate, with a sequence of numbers taking the values from array64 in the provided order.
if (elements.size() == 6)
return realm.heap().allocate<DOMMatrix>(realm, realm, elements.at(0), elements.at(1), elements.at(2), elements.at(3), elements.at(4), elements.at(5));
// If array64 has 16 elements, return the result of invoking create a 3d matrix of type DOMMatrixReadOnly or DOMMatrix as appropriate, with a sequence of numbers taking the values from array64 in the provided order.
if (elements.size() == 16)
return realm.heap().allocate<DOMMatrix>(realm, realm, elements.at(0), elements.at(1), elements.at(2), elements.at(3),
elements.at(4), elements.at(5), elements.at(6), elements.at(7),
elements.at(8), elements.at(9), elements.at(10), elements.at(11),
elements.at(12), elements.at(13), elements.at(14), elements.at(15));
// Otherwise, throw a TypeError exception.
return WebIDL::SimpleException { WebIDL::SimpleExceptionType::TypeError, "Expected a Float64Array argument with 6 or 16 elements"_string };
}
// https://drafts.fxtf.org/geometry/#dom-dommatrixreadonly-isidentity
bool DOMMatrixReadOnly::is_identity() const
{