Add m-esr52 at 52.6.0

1 files changed, 62 insertions, 0 deletions

diff --git a/dom/canvas/WebGLVertexArrayGL.cpp b/dom/canvas/WebGLVertexArrayGL.cpp
new file mode 100644
index 000000000..aa7313150
--- /dev/null
+++ b/dom/canvas/WebGLVertexArrayGL.cpp
@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "WebGLVertexArrayGL.h"
+
+#include "GLContext.h"
+#include "WebGLContext.h"
+
+namespace mozilla {
+
+WebGLVertexArrayGL::WebGLVertexArrayGL(WebGLContext* webgl)
+    : WebGLVertexArray(webgl)
+    , mIsVAO(false)
+{ }
+
+WebGLVertexArrayGL::~WebGLVertexArrayGL()
+{
+    DeleteOnce();
+}
+
+void
+WebGLVertexArrayGL::DeleteImpl()
+{
+    mElementArrayBuffer = nullptr;
+
+    mContext->MakeContextCurrent();
+    mContext->gl->fDeleteVertexArrays(1, &mGLName);
+
+    mIsVAO = false;
+}
+
+void
+WebGLVertexArrayGL::BindVertexArrayImpl()
+{
+    mContext->mBoundVertexArray = this;
+    mContext->gl->fBindVertexArray(mGLName);
+
+    mIsVAO = true;
+}
+
+void
+WebGLVertexArrayGL::GenVertexArray()
+{
+    mContext->gl->fGenVertexArrays(1, &mGLName);
+}
+
+bool
+WebGLVertexArrayGL::IsVertexArrayImpl() const
+{
+    gl::GLContext* gl = mContext->gl;
+    if (gl->WorkAroundDriverBugs())
+    {
+        return mIsVAO;
+    }
+
+    mContext->MakeContextCurrent();
+    return mContext->gl->fIsVertexArray(mGLName) != 0;
+}
+
+} // namespace mozilla