[Clam-devel] TonalAnalysis monitor letters are back

[David García Garzón]

After fixing a couple of bugs TonalAnalysis monitor letters are back.

1: Clearing the depth buffer is needed if we draw with the 3 coords 
renderText.
2: Setting the texture blending to GL_RECAL made the fonts appear as boxes. 

The only issue left concerning such views should be graphic cards not 
supporting fragment programs which blocks the view with the message:
QOpenGLPaintEngine: Failed to create fragment programs.

That one seems to be a qt bug which has been already reported.

David.