[vtk-developers] Painter GetSet Failures

[David Gobbi]

Hi All,

TestSetGet is failing on vtkOpenGLScalarsToColorsPainter, because
some of its Get methods directly invoke OpenGL without checking for
a valid context first:

vtkIdType vtkOpenGLScalarsToColorsPainter::GetTextureSizeLimit()
{
  GLint textureSize;
  glGetIntegerv(GL_MAX_TEXTURE_SIZE, &textureSize);
  return static_cast<vtkIdType>(textureSize);
}

int vtkOpenGLScalarsToColorsPainter::GetPremultiplyColorsWithAlpha(
  vtkActor* actor)
{
  GLint alphaBits;
  glGetIntegerv(GL_ALPHA_BITS, &alphaBits);
  ...
}

 - David
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