render_texture.cpp

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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:
 *
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 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
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 *     * 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
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#include "rve_render_server/render_texture.h"

#include <OGRE/OgreRenderWindow.h>
#include <OGRE/OgreRenderSystem.h>
#include <OGRE/OgreRoot.h>
#include <OGRE/OgreTextureManager.h>
#include <OGRE/OgreHardwarePixelBuffer.h>

#include <ros/assert.h>

#if OGRE_PLATFORM == OGRE_PLATFORM_LINUX
#include <GL/glx.h>
#endif

namespace rve_render_server
{

RenderTexture::RenderTexture(const rve_common::UUID& id, Renderer* rend, uint32_t width, uint32_t height)
: RenderTarget(id, rend, width, height)
, render_texture_(0)
, recreate_texture_(false)
{
  create();
  setTarget(render_texture_);
}

RenderTexture::~RenderTexture()
{
  Ogre::TextureManager::getSingleton().remove(tex_->getName());
}

void RenderTexture::create()
{
  if (!tex_.isNull())
  {
    Ogre::TextureManager::getSingleton().remove(tex_->getName());
  }

  std::stringstream ss;
  ss << getID();
  tex_ = Ogre::TextureManager::getSingleton().createManual(ss.str(), ROS_PACKAGE_NAME, Ogre::TEX_TYPE_2D, getWidth(), getHeight(), 0, Ogre::PF_BYTE_RGBA, Ogre::TU_RENDERTARGET);
  render_texture_ = tex_->getBuffer()->getRenderTarget();
}

void RenderTexture::resize(uint32_t width, uint32_t height)
{
  RenderTarget::resize(width, height);

  recreate_texture_ = true;
}

void RenderTexture::beginRender()
{
  if (recreate_texture_)
  {
    recreate_texture_ = false;
    create();
  }

  RenderTarget::beginRender();
}

} // namespace rve_render_server