PostProcessorDepthImagePlugin.cc

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#include <ACG/GL/acg_glew.hh>
 
#include "PostProcessorDepthImagePlugin.hh"
 
#include <ACG/GL/ScreenQuad.hh>
 
#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
 
 
PostProcessorDepthImagePlugin::PostProcessorDepthImagePlugin()
: shader_(0)
{
 
}
 
 
PostProcessorDepthImagePlugin::~PostProcessorDepthImagePlugin()
{
  delete shader_;
}
 
QString PostProcessorDepthImagePlugin::postProcessorName() {
  return QString("Show Depth Image");
}
 
QString PostProcessorDepthImagePlugin::checkOpenGL() 
{
  if ( ! ACG::openGLVersion(3, 0) )
    return QString("Insufficient OpenGL Version! OpenGL 3.0 or higher required");
 
  return QString("");
}
 
 
void PostProcessorDepthImagePlugin::postProcess(ACG::GLState* _glstate, const std::vector<const PostProcessorInput*>& _input, const PostProcessorOutput& _output) {
 
  // ======================================================================================================
  // Load shader if needed
  // ======================================================================================================
  if (!shader_)
    shader_ = GLSL::loadProgram("ShowDepth/screenquad.glsl", "ShowDepth/depth.glsl");
 
  // ======================================================================================================
  // Bind input texture
  // ======================================================================================================
 
  _input[0]->bindDepthTex(0);
 
  // ======================================================================================================
  // Bind output FBO
  // ======================================================================================================
 
  _output.bind();
 
  // ======================================================================================================
  // Setup shader
  // ======================================================================================================
 
  shader_->use();
  shader_->setUniform("textureSampler", 0);
 
  // ======================================================================================================
  // Execute
  // ======================================================================================================
 
  ACG::ScreenQuad::draw(shader_);
 
  shader_->disable();
}