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LibWeb: Implement WebGL getVertexAttrib

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This also implements all allowed parameter name values for this
function.
This commit is contained in:
Undefine 2025-11-01 17:01:15 +01:00 • committed by Jelle Raaijmakers
parent 2d8b393c76
commit a2c659ee6b
Notes: github-actions[bot] 2025-11-01 23:55:22 +00:00
10 changed files with 134 additions and 1 deletions
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59
Libraries/LibWeb/WebGL/WebGLRenderingContextImpl.cpp
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@ -1692,6 +1692,65 @@ GC::Root<WebGLUniformLocation> WebGLRenderingContextImpl::get_uniform_location(G
return WebGLUniformLocation::create(m_realm, location);
}
JS::Value WebGLRenderingContextImpl::get_vertex_attrib(WebIDL::UnsignedLong index, WebIDL::UnsignedLong pname)
{
switch (pname) {
case GL_CURRENT_VERTEX_ATTRIB: {
Array<GLfloat, 4> result;
result.fill(0);
glGetVertexAttribfvRobustANGLE(index, GL_CURRENT_VERTEX_ATTRIB, result.size(), nullptr, result.data());
auto byte_buffer = MUST(ByteBuffer::copy(result.span().reinterpret<u8>()));
auto array_buffer = JS::ArrayBuffer::create(m_realm, move(byte_buffer));
return JS::Float32Array::create(m_realm, result.size(), array_buffer);
}
case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: {
GLint handle { 0 };
glGetVertexAttribivRobustANGLE(index, GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, 1, nullptr, &handle);
return WebGLBuffer::create(m_realm, *this, handle);
}
case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE: {
if (angle_instanced_arrays_extension_enabled()) {
GLint result { 0 };
glGetVertexAttribivRobustANGLE(index, GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE, 1, nullptr, &result);
return JS::Value(result);
}
set_error(GL_INVALID_ENUM);
return JS::js_null();
}
case GL_VERTEX_ATTRIB_ARRAY_ENABLED: {
GLint result { 0 };
glGetVertexAttribivRobustANGLE(index, GL_VERTEX_ATTRIB_ARRAY_ENABLED, 1, nullptr, &result);
return JS::Value(result == GL_TRUE);
}
case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED: {
GLint result { 0 };
glGetVertexAttribivRobustANGLE(index, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, 1, nullptr, &result);
return JS::Value(result == GL_TRUE);
}
case GL_VERTEX_ATTRIB_ARRAY_SIZE: {
GLint result { 0 };
glGetVertexAttribivRobustANGLE(index, GL_VERTEX_ATTRIB_ARRAY_SIZE, 1, nullptr, &result);
return JS::Value(result);
}
case GL_VERTEX_ATTRIB_ARRAY_STRIDE: {
GLint result { 0 };
glGetVertexAttribivRobustANGLE(index, GL_VERTEX_ATTRIB_ARRAY_STRIDE, 1, nullptr, &result);
return JS::Value(result);
}
case GL_VERTEX_ATTRIB_ARRAY_TYPE: {
GLint result { 0 };
glGetVertexAttribivRobustANGLE(index, GL_VERTEX_ATTRIB_ARRAY_TYPE, 1, nullptr, &result);
return JS::Value(result);
}
default:
dbgln("Unknown WebGL vertex attrib name: 0x{:04x}", pname);
set_error(GL_INVALID_ENUM);
return JS::js_null();
}
}
void WebGLRenderingContextImpl::hint(WebIDL::UnsignedLong target, WebIDL::UnsignedLong mode)
{
m_context->make_current();