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3rdparty/osgXR/src/XRFramebuffer.h

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+// SPDX-License-Identifier: LGPL-2.1-only
+// Copyright (C) 2021 James Hogan <james@albanarts.com>
+
+#ifndef OSGXR_XRFRAMEBUFFER
+#define OSGXR_XRFRAMEBUFFER 1
+
+#include <osg/GL>
+#include <osg/Referenced>
+
+#include <cinttypes>
+
+namespace osgXR {
+
+class XRFramebuffer : public osg::Referenced
+{
+    public:
+
+        explicit XRFramebuffer(uint32_t width, uint32_t height,
+                               GLuint texture, GLuint depthTexture = 0);
+        // releaseGLObjects() first
+        virtual ~XRFramebuffer();
+
+        void setDepthFormat(GLenum depthFormat)
+        {
+            _depthFormat = depthFormat;
+        }
+
+        bool valid(osg::State &state) const;
+        void bind(osg::State &state);
+        void unbind(osg::State &state);
+        // GL context must be current
+        void releaseGLObjects(osg::State &state);
+
+    protected:
+
+        uint32_t _width;
+        uint32_t _height;
+        GLenum _depthFormat;
+
+        GLuint _fbo;
+        GLuint _texture;
+        GLuint _depthTexture;
+
+        bool _generated;
+        bool _boundTexture;
+        bool _boundDepthTexture;
+        bool _deleteDepthTexture;
+};
+
+} // osgXR
+
+#endif