These checks were from a time when we supported lower OpenGL version
than 3.2. Since we don't do that anymore and show an error if the
drivers don't support that, these conditions always evaluated to true
and could be removed.
The demo doesn't include techroom art because the demo doesn't have a techroom (or a campaign room, or a HUD config menu), but it still otherwise works with the higher-resolution interface.
This allows to show the debug output in a second window in real time.
This system could be expanded further to allow more interactivity but
the current status is good enough.
When the function was rewritten as part of the TrueType PR, its logic was also unintentionally changed so that it expected timestamps in milliseconds when everything calling it provides "fix"es, which represent 65536ths of a second.
This changes some functionality but it shouldn't cause too many issues
since the previous functionality was kind of a hack anyway.
This also adds a simulation conditional hook that has only been
available through global hooks before.
The new design is centered around the Event Trace JSON format but it
should still be possible to adapt it for other profiling tools. The old
profiling system has been removed.
This fixes a few of the bad design descisions of previous shader
iterations. This uses a dedicated class for managing the resources and
uniform locations of a shader program.
Uniforms are also stored in this object which makes a lot more sense
than storing them in the OpenGL state where they had to be reset every
time a new shader was used.
There are still a lot of possible enhancments to make, e.g. by using
uniform blocks and buffers instead of standard uniforms which would make
uniform location handling easier.
Another optimization that I will investigate is reducing the amount or
different compiled shaders by turning some of the current compile-time
defines into bool uniforms.
This allows to use a different method of creating and managing the
OpenGL context. This is needed of wxFRED where the OpenGL context is
created by wxWidgets. This will probably also fix#753 since it uses the
old wgl based method of creating an OpenGL context in FRED.
This allows to use standard TrueType Fonts for text rendering in FSO. It uses the NanoVG library which provides the ability of drawing 2D shapes. This library is used for most 2D operations now and can also be used directly by using the PathRenderer class.
When using the Linux AMD proprietary driver FSO gets stuck when trying to swap buffers when performing an abnormal shutdown (e.g. when exiting via a dialog). This skips the gr_flip calls when we are going to close as it doesn't matter anyway.