Method DrawPixels

Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx:2017–2034

------------------------------------------------------------------------------ draw (and stretch as needed) the data to the current viewport

//------------------------------------------------------------------------------
// draw (and stretch as needed) the data to the current viewport
void vtkOpenGLRenderWindow::DrawPixels(
  int srcWidth, int srcHeight, int numComponents, int dataType, void* data)
{
  this->GetState()->vtkglDisable(GL_SCISSOR_TEST);
  this->GetState()->vtkglDisable(GL_DEPTH_TEST);
  if (!this->DrawPixelsTextureObject)
  {
    this->DrawPixelsTextureObject = vtkTextureObject::New();
  }
  else
  {
    this->DrawPixelsTextureObject->ReleaseGraphicsResources(this);
  }
  this->DrawPixelsTextureObject->SetContext(this);
  this->DrawPixelsTextureObject->Create2DFromRaw(
    srcWidth, srcHeight, numComponents, dataType, data);
  this->DrawPixelsTextureObject->CopyToFrameBuffer(nullptr, nullptr);
}

//------------------------------------------------------------------------------
// very generic call to draw pixel data to a region of the window