- initial version

git-svn-id: http://moon:8086/svn/software/trunk/projects/RBM@14 b431acfa-c32f-4a4a-93f1-934dc6c82436
2014-09-24 17:21:29 +00:00
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+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software Ltd.
+
+   Permission is granted to use this software under the terms of either:
+   a) the GPL v2 (or any later version)
+   b) the Affero GPL v3
+
+   Details of these licenses can be found at: www.gnu.org/licenses
+
+   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.juce.com for more information.
+
+  ==============================================================================
+*/
+
+#ifndef JUCE_OPENGLRENDERER_H_INCLUDED
+#define JUCE_OPENGLRENDERER_H_INCLUDED
+
+
+//==============================================================================
+/**
+    A base class that should be implemented by classes which want to render openGL
+    on a background thread.
+
+    @see OpenGLContext
+*/
+class JUCE_API  OpenGLRenderer
+{
+public:
+    OpenGLRenderer() {}
+    virtual ~OpenGLRenderer() {}
+
+    /** 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, not the message
+        thread, so make sure that your implementation is thread-safe.
+        For information about how to trigger a render callback, see
+        OpenGLContext::triggerRepaint() and OpenGLContext::setContinuousRepainting().
+    */
+    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;
+};
+
+
+#endif   // JUCE_OPENGLRENDERER_H_INCLUDED