1 files changed, 129 insertions, 0 deletions
diff --git a/dom/canvas/WebGLExtensionDisjointTimerQuery.cpp b/dom/canvas/WebGLExtensionDisjointTimerQuery.cpp
new file mode 100644
index 000000000..e2e34f14e
--- /dev/null
+++ b/dom/canvas/WebGLExtensionDisjointTimerQuery.cpp
@@ -0,0 +1,129 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "WebGLExtensions.h"
+
+#include "gfxPrefs.h"
+#include "GLContext.h"
+#include "mozilla/dom/ToJSValue.h"
+#include "mozilla/dom/WebGLRenderingContextBinding.h"
+#include "mozilla/dom/BindingUtils.h"
+#include "WebGLContext.h"
+#include "WebGLQuery.h"
+
+namespace mozilla {
+
+WebGLExtensionDisjointTimerQuery::WebGLExtensionDisjointTimerQuery(WebGLContext* webgl)
+  : WebGLExtensionBase(webgl)
+{
+    MOZ_ASSERT(IsSupported(webgl), "Don't construct extension if unsupported.");
+}
+
+WebGLExtensionDisjointTimerQuery::~WebGLExtensionDisjointTimerQuery()
+{
+}
+
+already_AddRefed<WebGLQuery>
+WebGLExtensionDisjointTimerQuery::CreateQueryEXT() const
+{
+    const char funcName[] = "createQueryEXT";
+    if (mIsLost)
+        return nullptr;
+
+    return mContext->CreateQuery(funcName);
+}
+
+void
+WebGLExtensionDisjointTimerQuery::DeleteQueryEXT(WebGLQuery* query) const
+{
+    const char funcName[] = "deleteQueryEXT";
+    if (mIsLost)
+        return;
+
+    mContext->DeleteQuery(query, funcName);
+}
+
+bool
+WebGLExtensionDisjointTimerQuery::IsQueryEXT(const WebGLQuery* query) const
+{
+    const char funcName[] = "isQueryEXT";
+    if (mIsLost)
+        return false;
+
+    return mContext->IsQuery(query, funcName);
+}
+
+void
+WebGLExtensionDisjointTimerQuery::BeginQueryEXT(GLenum target, WebGLQuery& query) const
+{
+    const char funcName[] = "beginQueryEXT";
+    if (mIsLost)
+        return;
+
+    mContext->BeginQuery(target, query, funcName);
+}
+
+void
+WebGLExtensionDisjointTimerQuery::EndQueryEXT(GLenum target) const
+{
+    const char funcName[] = "endQueryEXT";
+    if (mIsLost)
+        return;
+
+    mContext->EndQuery(target, funcName);
+}
+
+void
+WebGLExtensionDisjointTimerQuery::QueryCounterEXT(WebGLQuery& query, GLenum target) const
+{
+    const char funcName[] = "queryCounterEXT";
+    if (mIsLost)
+        return;
+
+    if (!mContext->ValidateObject(funcName, query))
+        return;
+
+    query.QueryCounter(funcName, target);
+}
+
+void
+WebGLExtensionDisjointTimerQuery::GetQueryEXT(JSContext* cx, GLenum target, GLenum pname,
+                                              JS::MutableHandleValue retval) const
+{
+    const char funcName[] = "getQueryEXT";
+    retval.setNull();
+    if (mIsLost)
+        return;
+
+    mContext->GetQuery(cx, target, pname, retval, funcName);
+}
+
+void
+WebGLExtensionDisjointTimerQuery::GetQueryObjectEXT(JSContext* cx,
+                                                    const WebGLQuery& query, GLenum pname,
+                                                    JS::MutableHandleValue retval) const
+{
+    const char funcName[] = "getQueryObjectEXT";
+    retval.setNull();
+    if (mIsLost)
+        return;
+
+    mContext->GetQueryParameter(cx, query, pname, retval, funcName);
+}
+
+bool
+WebGLExtensionDisjointTimerQuery::IsSupported(const WebGLContext* webgl)
+{
+    webgl->MakeContextCurrent();
+    gl::GLContext* gl = webgl->GL();
+    return gl->IsSupported(gl::GLFeature::query_objects) &&
+           gl->IsSupported(gl::GLFeature::get_query_object_i64v) &&
+           gl->IsSupported(gl::GLFeature::query_counter); // provides GL_TIMESTAMP
+}
+
+IMPL_WEBGL_EXTENSION_GOOP(WebGLExtensionDisjointTimerQuery, EXT_disjoint_timer_query)
+
+} // namespace mozilla