Method vtkglGetIntegerv

Rendering/OpenGL2/vtkOpenGLState.cxx:1166–1222

}

void vtkOpenGLState::vtkglGetIntegerv(GLenum pname, GLint* params)
{
  vtkOpenGLCheckStateMacro();
  auto& cs = this->Stack.top();

  switch (pname)
  {
    case GL_VIEWPORT:
      params[0] = cs.Viewport[0];
      params[1] = cs.Viewport[1];
      params[2] = cs.Viewport[2];
      params[3] = cs.Viewport[3];
      break;
    case GL_SCISSOR_BOX:
      params[0] = cs.Scissor[0];
      params[1] = cs.Scissor[1];
      params[2] = cs.Scissor[2];
      params[3] = cs.Scissor[3];
      break;
    case GL_CULL_FACE_MODE:
      *params = cs.CullFaceMode;
      break;
    case GL_DEPTH_FUNC:
      *params = cs.DepthFunc;
      break;
    case GL_BLEND_SRC_RGB:
      *params = cs.BlendFunc[0];
      break;
    case GL_BLEND_SRC_ALPHA:
      *params = cs.BlendFunc[2];
      break;
    case GL_BLEND_DST_RGB:
      *params = cs.BlendFunc[1];
      break;
    case GL_BLEND_DST_ALPHA:
      *params = cs.BlendFunc[3];
      break;
#ifdef GL_ARB_tessellation_shader
    case GL_MAX_TESS_GEN_LEVEL:
      *params = this->MaxTessellationLevel;
      break;
#endif
    case GL_MAX_TEXTURE_SIZE:
      *params = this->MaxTextureSize;
      break;
    case GL_MAJOR_VERSION:
      *params = this->MajorVersion;
      break;
    case GL_MINOR_VERSION:
      *params = this->MinorVersion;
      break;
    default:
      ::glGetIntegerv(pname, params);
  }

  vtkCheckOpenGLErrorsWithStack("glGetInteger");
}