git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

deps/juce/modules/juce_opengl/opengl/juce_OpenGLRenderer.h

@@ -0,0 +1,88 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2020 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   By using JUCE, you agree to the terms of both the JUCE 6 End-User License
+   Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
+
+   End User License Agreement: www.juce.com/juce-6-licence
+   Privacy Policy: www.juce.com/juce-privacy-policy
+
+   Or: You may also use this code under the terms of the GPL v3 (see
+   www.gnu.org/licenses).
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+
+//==============================================================================
+/**
+    A base class that should be implemented by classes which want to render openGL
+    on a background thread.
+
+    @see OpenGLContext
+
+    @tags{OpenGL}
+*/
+class JUCE_API  OpenGLRenderer
+{
+public:
+    OpenGLRenderer() = default;
+    virtual ~OpenGLRenderer() = default;
+
+    /** Called when a new GL context has been created.
+        You can use this as an opportunity to create your textures, shaders, etc.
+        When the method is invoked, the new GL context will be active.
+        Note that this callback will be made on a background thread, so make sure
+        that your implementation is thread-safe.
+    */
+    virtual void newOpenGLContextCreated() = 0;
+
+    /** Called when you should render the next openGL frame.
+
+        Note that this callback will be made on a background thread.
+
+        If the context is attached to a component in order to do component rendering,
+        then the MessageManager will be locked when this callback is made.
+
+        If no component rendering is being done, then the MessageManager will not be
+        locked, and you'll need to make sure your code is thread-safe in any
+        interactions it has with your GUI classes.
+
+        For information about how to trigger a render callback, see
+        OpenGLContext::triggerRepaint() and OpenGLContext::setContinuousRepainting().
+
+        IMPORTANT: Never take a MessageManagerLock inside this function! On
+        macOS, the OpenGL context will be locked for the duration of this call.
+        The main thread may also attempt to interact with the OpenGL context at
+        any time, which will also require locking the OpenGL context. As a
+        result, taking a MessageManagerLock inside renderOpenGL() may cause a
+        hierarchical deadlock.
+    */
+    virtual void renderOpenGL() = 0;
+
+    /** Called when the current openGL context is about to close.
+        You can use this opportunity to release any GL resources that you may have
+        created.
+
+        Note that this callback will be made on a background thread, so make sure
+        that your implementation is thread-safe.
+
+        (Also note that on Android, this callback won't happen, because there's currently
+        no way to implement it..)
+    */
+    virtual void openGLContextClosing() = 0;
+};
+
+} // namespace juce