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diff --git a/source/blender/gpu/intern/gpu_context_private.hh b/source/blender/gpu/intern/gpu_context_private.hh
new file mode 100644
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+++ b/source/blender/gpu/intern/gpu_context_private.hh
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+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2016 by Mike Erwin.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup gpu
+ *
+ * This interface allow GPU to manage GL objects for multiple context and threads.
+ */
+
+#pragma once
+
+#include "MEM_guardedalloc.h"
+
+#include "GPU_context.h"
+
+#include <mutex>
+#include <pthread.h>
+#include <string.h>
+#include <unordered_set>
+#include <vector>
+
+struct GPUFrameBuffer;
+struct GPUMatrixState;
+
+struct GPUContext {
+ public:
+  /** State managment */
+  GPUFrameBuffer *current_fbo = NULL;
+  GPUMatrixState *matrix_state = NULL;
+
+ protected:
+  /** Thread on which this context is active. */
+  pthread_t thread_;
+  bool is_active_;
+
+ public:
+  GPUContext();
+  virtual ~GPUContext();
+
+  virtual void activate(void) = 0;
+  virtual void deactivate(void) = 0;
+
+  bool is_active_on_thread(void);
+
+  MEM_CXX_CLASS_ALLOC_FUNCS("GPUContext")
+};
+
+GLuint GPU_vao_default(void);
+GLuint GPU_framebuffer_default(void);
+
+/* These require a gl ctx bound. */
+GLuint GPU_buf_alloc(void);
+GLuint GPU_tex_alloc(void);
+GLuint GPU_vao_alloc(void);
+GLuint GPU_fbo_alloc(void);
+
+/* These can be called any threads even without gl ctx. */
+void GPU_buf_free(GLuint buf_id);
+void GPU_tex_free(GLuint tex_id);
+/* These two need the ctx the id was created with. */
+void GPU_vao_free(GLuint vao_id, GPUContext *ctx);
+void GPU_fbo_free(GLuint fbo_id, GPUContext *ctx);
+
+void gpu_context_add_batch(GPUContext *ctx, GPUBatch *batch);
+void gpu_context_remove_batch(GPUContext *ctx, GPUBatch *batch);
+
+void gpu_context_add_framebuffer(GPUContext *ctx, struct GPUFrameBuffer *fb);
+void gpu_context_remove_framebuffer(GPUContext *ctx, struct GPUFrameBuffer *fb);
+
+void gpu_context_active_framebuffer_set(GPUContext *ctx, struct GPUFrameBuffer *fb);
+struct GPUFrameBuffer *gpu_context_active_framebuffer_get(GPUContext *ctx);
+
+struct GPUMatrixState *gpu_context_active_matrix_state_get(void);