Added RGB waveform renderer and widget.
Improved and optimized drawing in WaveformRendererRGB.
Added GL enabled RGB waveform.
RGB waveform renderer is now using colors defined in the skin.
Modified RGB waveform renderer to use default colors if colors are not set by skin.
Modified GL RGB renderer to use colors from skin.
Improved color mixing in non-GL RGB waveform renderer.
Merge remote-tracking branch 'upstream/master' into waveform_renderer_rgb
Fixed post-merge build errors.
Merge remote-tracking branch 'upstream/master' into waveform_renderer_rgb
Post-merge error fix
Apply low/mid/high gain in GL RGB waveform renderer.
Compute waveform 'all' from low, mid and high after gain has been applied. Also, compute color for each channel.
Merge branch 'master' into waveform_renderer_rgb
Merge branch 'master' into waveform_renderer_rgb
Follow changes from 4b6473dbb5815c5cb61531dee2ed8b28f7831a76
Added RGB waveform overview
Merge pull request #118 from ninomp/waveform_renderer_rgb

RGB waveform display