1 files changed, 63 insertions, 0 deletions
diff --git a/source/blender/gpu/opengl/gl_shader_interface.hh b/source/blender/gpu/opengl/gl_shader_interface.hh
new file mode 100644
index 00000000000..0b9585aa389
--- /dev/null
+++ b/source/blender/gpu/opengl/gl_shader_interface.hh
@@ -0,0 +1,63 @@
+/*
+ * 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) 2020 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup gpu
+ *
+ * GPU shader interface (C --> GLSL)
+ *
+ * Structure detailing needed vertex inputs and resources for a specific shader.
+ * A shader interface can be shared between two similar shaders.
+ */
+
+#pragma once
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_vector.hh"
+
+#include "glew-mx.h"
+
+#include "gpu_shader_interface.hh"
+
+namespace blender::gpu {
+
+class GLVaoCache;
+
+/**
+ * Implementation of Shader interface using OpenGL.
+ **/
+class GLShaderInterface : public ShaderInterface {
+ private:
+  /** Reference to VaoCaches using this interface */
+  Vector<GLVaoCache *> refs_;
+
+ public:
+  GLShaderInterface(GLuint program);
+  ~GLShaderInterface();
+
+  void ref_add(GLVaoCache *ref);
+  void ref_remove(GLVaoCache *ref);
+
+  // bool resource_binding_validate();
+
+  MEM_CXX_CLASS_ALLOC_FUNCS("GLShaderInterface");
+};
+
+}  // namespace blender::gpu