From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 dom/canvas/WebGLTransformFeedback.h | 66 +++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 dom/canvas/WebGLTransformFeedback.h

(limited to 'dom/canvas/WebGLTransformFeedback.h')

diff --git a/dom/canvas/WebGLTransformFeedback.h b/dom/canvas/WebGLTransformFeedback.h
new file mode 100644
index 000000000..aa57372a5
--- /dev/null
+++ b/dom/canvas/WebGLTransformFeedback.h
@@ -0,0 +1,66 @@
+/* -*- 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/. */
+
+#ifndef WEBGL_TRANSFORM_FEEDBACK_H_
+#define WEBGL_TRANSFORM_FEEDBACK_H_
+
+#include "mozilla/LinkedList.h"
+#include "nsWrapperCache.h"
+#include "WebGLObjectModel.h"
+
+namespace mozilla {
+
+class WebGLTransformFeedback final
+    : public nsWrapperCache
+    , public WebGLRefCountedObject<WebGLTransformFeedback>
+    , public LinkedListElement<WebGLTransformFeedback>
+{
+    friend class ScopedDrawHelper;
+    friend class ScopedDrawWithTransformFeedback;
+    friend class WebGLContext;
+    friend class WebGL2Context;
+    friend class WebGLProgram;
+
+public:
+    const GLuint mGLName;
+private:
+    // GLES 3.0.4 p267, Table 6.24 "Transform Feedback State"
+    WebGLRefPtr<WebGLBuffer> mGenericBufferBinding;
+    std::vector<IndexedBufferBinding> mIndexedBindings;
+    bool mIsPaused;
+    bool mIsActive;
+    // Not in state tables:
+    WebGLRefPtr<WebGLProgram> mActive_Program;
+    MOZ_INIT_OUTSIDE_CTOR GLenum mActive_PrimMode;
+    MOZ_INIT_OUTSIDE_CTOR size_t mActive_VertPosition;
+    MOZ_INIT_OUTSIDE_CTOR size_t mActive_VertCapacity;
+
+public:
+    WebGLTransformFeedback(WebGLContext* webgl, GLuint tf);
+private:
+    ~WebGLTransformFeedback();
+
+public:
+    NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLTransformFeedback)
+    NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLTransformFeedback)
+
+    void Delete();
+    WebGLContext* GetParentObject() const { return mContext; }
+    virtual JSObject* WrapObject(JSContext*, JS::Handle<JSObject*>) override;
+
+    bool IsActiveAndNotPaused() const { return mIsActive && !mIsPaused; }
+
+    void AddBufferBindCounts(int8_t addVal) const;
+
+    // GL Funcs
+    void BeginTransformFeedback(GLenum primMode);
+    void EndTransformFeedback();
+    void PauseTransformFeedback();
+    void ResumeTransformFeedback();
+};
+
+} // namespace mozilla
+
+#endif // WEBGL_TRANSFORM_FEEDBACK_H_
-- 
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