text: /*************************************************************************/
  /*  editor_preview_plugins.h                                             */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
  /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #ifndef EDITORPREVIEWPLUGINS_H
  #define EDITORPREVIEWPLUGINS_H
  
  #include "editor/editor_resource_preview.h"
  
  void post_process_preview(Ref<Image> p_image);
  
  class EditorTexturePreviewPlugin : public EditorResourcePreviewGenerator {
  	GDCLASS(EditorTexturePreviewPlugin, EditorResourcePreviewGenerator)
  public:
  	virtual bool handles(const String &p_type) const;
  	virtual Ref<Texture> generate(const RES &p_from);
  
  	EditorTexturePreviewPlugin();
  };
  
  class EditorBitmapPreviewPlugin : public EditorResourcePreviewGenerator {
  	GDCLASS(EditorBitmapPreviewPlugin, EditorResourcePreviewGenerator)
  public:
  	virtual bool handles(const String &p_type) const;
  	virtual Ref<Texture> generate(const RES &p_from);
  
  	EditorBitmapPreviewPlugin();
  };
  
  class EditorPackedScenePreviewPlugin : public EditorResourcePreviewGenerator {
  
  public:
  	virtual bool handles(const String &p_type) const;
  	virtual Ref<Texture> generate(const RES &p_from);
  	virtual Ref<Texture> generate_from_path(const String &p_path);
  
  	EditorPackedScenePreviewPlugin();
  };
  
  class EditorMaterialPreviewPlugin : public EditorResourcePreviewGenerator {
  
  	GDCLASS(EditorMaterialPreviewPlugin, EditorResourcePreviewGenerator)
  
  	RID scenario;
  	RID sphere;
  	RID sphere_instance;
  	RID viewport;
  	RID viewport_texture;
  	RID light;
  	RID light_instance;
  	RID light2;
  	RID light_instance2;
  	RID camera;
  	volatile bool preview_done;
  
  	void _preview_done(const Variant &p_udata);
  
  protected:
  	static void _bind_methods();
  
  public:
  	virtual bool handles(const String &p_type) const;
  	virtual Ref<Texture> generate(const RES &p_from);
  
  	EditorMaterialPreviewPlugin();
  	~EditorMaterialPreviewPlugin();
  };
  
  class EditorScriptPreviewPlugin : public EditorResourcePreviewGenerator {
  public:
  	virtual bool handles(const String &p_type) const;
  	virtual Ref<Texture> generate(const RES &p_from);
  
  	EditorScriptPreviewPlugin();
  };
  
  // FIXME: Needs to be rewritten for AudioStream in Godot 3.0+
  #if 0
  class EditorSamplePreviewPlugin : public EditorResourcePreviewGenerator {
  public:
  
  	virtual bool handles(const String& p_type) const;
  	virtual Ref<Texture> generate(const RES& p_from);
  
  	EditorSamplePreviewPlugin();
  };
  #endif
  
  class EditorMeshPreviewPlugin : public EditorResourcePreviewGenerator {
  
  	GDCLASS(EditorMeshPreviewPlugin, EditorResourcePreviewGenerator)
  
  	RID scenario;
  	RID mesh_instance;
  	RID viewport;
  	RID viewport_texture;
  	RID light;
  	RID light_instance;
  	RID light2;
  	RID light_instance2;
  	RID camera;
  	volatile bool preview_done;
  
  	void _preview_done(const Variant &p_udata);
  
  protected:
  	static void _bind_methods();
  
  public:
  	virtual bool handles(const String &p_type) const;
  	virtual Ref<Texture> generate(const RES &p_from);
  
  	EditorMeshPreviewPlugin();
  	~EditorMeshPreviewPlugin();
  };
  
  #endif // EDITORPREVIEWPLUGINS_H
  