void WebGLContext::GetQuery(JSContext* cx, GLenum target, GLenum pname,
JS::MutableHandleValue retval) {
const FuncScope funcScope(*this, "getQuery");
retval.setNull();
if (IsContextLost()) return;
switch (pname) {
case LOCAL_GL_CURRENT_QUERY_EXT: {
if (IsExtensionEnabled(WebGLExtensionID::EXT_disjoint_timer_query) &&
target == LOCAL_GL_TIMESTAMP) {
// Doesn't seem illegal to ask about, but is always null.
// TIMESTAMP has no slot, so ValidateQuerySlotByTarget would generate
// INVALID_ENUM.
return;
}
const auto& slot = ValidateQuerySlotByTarget(target);
if (!slot || !*slot) return;
const auto& query = *slot;
if (target != query->Target()) return;
JS::Rooted<JS::Value> v(cx);
dom::GetOrCreateDOMReflector(cx, slot->get(), &v);
retval.set(v);
}
return;
case LOCAL_GL_QUERY_COUNTER_BITS_EXT:
if (!IsExtensionEnabled(WebGLExtensionID::EXT_disjoint_timer_query))
break;
if (target != LOCAL_GL_TIME_ELAPSED_EXT &&
target != LOCAL_GL_TIMESTAMP_EXT) {
ErrorInvalidEnumInfo("target", target);
return;
}
{
GLint bits = 0;
gl->fGetQueryiv(target, pname, &bits);
if (!Has64BitTimestamps() && bits > 32) {
bits = 32;
}
retval.set(JS::Int32Value(bits));
}
return;
default:
break;
}
ErrorInvalidEnumInfo("pname", pname);
}
void WebGLContext::EndQuery(GLenum target) {
const FuncScope funcScope(*this, "endQuery");
if (IsContextLost()) return;
const auto& slot = ValidateQuerySlotByTarget(target);
if (!slot) return;
const auto& query = *slot;
if (!query) return ErrorInvalidOperation("Query target not active.");
query->EndQuery();
}
void WebGLContext::BeginQuery(GLenum target, WebGLQuery& query) {
const FuncScope funcScope(*this, "beginQuery");
if (IsContextLost()) return;
if (!ValidateObject("query", query)) return;
const auto& slot = ValidateQuerySlotByTarget(target);
if (!slot) return;
if (*slot) return ErrorInvalidOperation("Query target already active.");
////
query.BeginQuery(target, *slot);
}
void
WebGLContext::EndQuery(GLenum target, const char* funcName)
{
if (!funcName) {
funcName = "endQuery";
}
if (IsContextLost())
return;
const auto& slot = ValidateQuerySlotByTarget(funcName, target);
if (!slot)
return;
const auto& query = *slot;
if (!query)
return ErrorInvalidOperation("%s: Query target not active.", funcName);
query->EndQuery();
}
void
WebGLContext::BeginQuery(GLenum target, WebGLQuery& query, const char* funcName)
{
if (!funcName) {
funcName = "beginQuery";
}
if (IsContextLost())
return;
if (!ValidateObject(funcName, query))
return;
const auto& slot = ValidateQuerySlotByTarget(funcName, target);
if (!slot)
return;
if (*slot)
return ErrorInvalidOperation("%s: Query target already active.", funcName);
////
query.BeginQuery(target, *slot);
}
