import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/gl/GLContextEAGL.h

@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=4 et sw=4 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/. */
+
+#ifndef GLCONTEXTEAGL_H_
+#define GLCONTEXTEAGL_H_
+
+#include "GLContext.h"
+
+#include <CoreGraphics/CoreGraphics.h>
+#include <OpenGLES/EAGL.h>
+
+namespace mozilla {
+namespace gl {
+
+class GLContextEAGL : public GLContext
+{
+    friend class GLContextProviderEAGL;
+
+    EAGLContext* const mContext;
+
+public:
+    MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextEAGL, override)
+    GLContextEAGL(CreateContextFlags flags, const SurfaceCaps& caps, EAGLContext* context,
+                  GLContext* sharedContext, bool isOffscreen, ContextProfile profile);
+
+    ~GLContextEAGL();
+
+    virtual GLContextType GetContextType() const override {
+        return GLContextType::EAGL;
+    }
+
+    static GLContextEAGL* Cast(GLContext* gl) {
+        MOZ_ASSERT(gl->GetContextType() == GLContextType::EAGL);
+        return static_cast<GLContextEAGL*>(gl);
+    }
+
+    bool Init() override;
+
+    bool AttachToWindow(nsIWidget* aWidget);
+
+    EAGLContext* GetEAGLContext() const { return mContext; }
+
+    virtual bool MakeCurrentImpl(bool aForce) override;
+
+    virtual bool IsCurrent() override;
+
+    virtual bool SetupLookupFunction() override;
+
+    virtual bool IsDoubleBuffered() const override;
+
+    virtual bool SupportsRobustness() const override { return false; }
+
+    virtual bool SwapBuffers() override;
+
+    virtual GLuint GetDefaultFramebuffer() override {
+        return mBackbufferFB;
+    }
+
+    virtual bool RenewSurface(nsIWidget* aWidget) override {
+        // FIXME: should use the passed widget instead of the existing one.
+        return RecreateRB();
+    }
+
+private:
+    GLuint mBackbufferRB;
+    GLuint mBackbufferFB;
+
+    void* mLayer;
+
+    bool RecreateRB();
+};
+
+} // namespace gl
+} // namespace mozilla
+
+#endif // GLCONTEXTEAGL_H_