lines_renderer.h

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/*
 * Copyright (c) 2010, Willow Garage, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef RVE_RENDER_SERVER_LINES_RENDERER_H
#define RVE_RENDER_SERVER_LINES_RENDERER_H

#include <OGRE/OgreSimpleRenderable.h>
#include <OGRE/OgreMaterial.h>

#include "batch_renderer.h"
#include "batch_renderable.h"
#include "lines_renderer_desc.h"

#include <ros/message_forward.h>

namespace Ogre
{
class SceneManager;
class SceneNode;
}

namespace rve_msgs
{
ROS_DECLARE_MESSAGE(Lines);
}

namespace rve_render_server
{

class LinesRenderer;
class LinesRenderable : public BatchRenderable<LinesRenderable, LinesRendererDesc>
{
  typedef BatchRenderable<LinesRenderable, LinesRendererDesc> Parent;

public:
  LinesRenderable(const LinesRendererDesc& desc, bool alpha);
  ~LinesRenderable();

  void add(const rve_common::UUID& id, const rve_msgs::Lines& lines, uint32_t start, uint32_t& out_start, uint32_t& out_count);
  void remove(uint32_t start, uint32_t count);

  uint32_t getElementsPerVBO();

  virtual Picked translatePick(PickRenderValues id) { return Picked(); }

private:
  void outputLines(const rve_msgs::Lines& lines, float* fptr, uint32_t line_start, uint32_t vert_start, uint32_t end, bool alpha, uint32_t& out_count);
  void outputBillboards(const rve_msgs::Lines& lines, float* fptr, uint32_t line_start, uint32_t vert_start, uint32_t end, bool alpha, uint32_t& out_count);

  uint32_t getVerticesPerVertex();
  uint32_t getVerticesPerLine();
  float* getOffsets();
  uint32_t getVertexStride();
  bool isList();
  bool isBillboard();
};
typedef boost::shared_ptr<LinesRenderable> LinesRenderablePtr;
typedef std::vector<LinesRenderablePtr> V_LinesRenderable;

class LinesRenderer : public BatchRenderer<LinesRenderer, rve_msgs::Lines, LinesRenderable, LinesRendererDesc>
{
  typedef BatchRenderer<LinesRenderer, rve_msgs::Lines, LinesRenderable, LinesRendererDesc> Parent;

public:
  LinesRenderer(Ogre::SceneManager* scene_manager, const LinesRendererDesc& desc);

  std::pair<Ogre::MaterialPtr, Ogre::MaterialPtr> createMaterials(const LinesRendererDesc& desc);
  size_t getInputCount(const rve_msgs::Lines& lines);
};

} // namespace rve_render_server

#endif // RVE_RENDER_SERVER_LINES_RENDERER_H