[glob2-devel] On smooth lines and quality settings.

[Matthew Marshall]

I had mentioned before that the line smoothing kills my performance, and that 
it is still smoothed even when 'Low Quality' is selected.  Before, I just 
quickly changed a line or two in glSDL.c to disable them.  However, I decided 
today to look into why it wasn't working right.

After a bit of experimenting, I noticed that while the lines are smoothed and 
pretty in Low Quality mode, they are rough and jagged (but fast) in High 
Quality mode!  I was getting better performance in High Quality mode than Low 
Quality Mode!!

So, I did a bit of digging around in the code.  I modified two lines of code:

in SettingsScreen.cpp:
globalContainer->gfx->setQuality((globalContainer->settings.optionFlags & 
GlobalContainer::OPTION_LOW_SPEED_GFX) != 0 ? GraphicContext::HIGH_QUALITY : 
GraphicContext::LOW_QUALITY);

I changed to:
globalContainer->gfx->setQuality((globalContainer->settings.optionFlags & 
GlobalContainer::OPTION_LOW_SPEED_GFX) != 0 ? GraphicContext::LOW_QUALITY : 
GraphicContext::HIGH_QUALITY);

And, in GlobalContainer.cpp:
gfx->setQuality((settings.optionFlags & OPTION_LOW_SPEED_GFX) != 0 ? 
GraphicContext::HIGH_QUALITY : GraphicContext::LOW_QUALITY);

I changed to:
gfx->setQuality((settings.optionFlags & OPTION_LOW_SPEED_GFX) != 0 ? 
GraphicContext::LOW_QUALITY : GraphicContext::HIGH_QUALITY);


So, all I did was change around the 'LOW_QUALITY' and the 'HIGH_QUALITY'.

Something to note, is that while the smoothed lines turn the game into a slide 
show on my Rage 128 based card, they have no noticeable effect on my 
brother's Radeon 7500.

MWM