Allow for overriding type and size of an element, opening the path for `int#[]`, `float#[]`, `int#x#`, `float#x#`, `bool#x#`, `vector<type, #>` and `matrix<type, #, #>`. Also allows for specifying the exact type of texture instead of hoping the user gets it right, as well as samplers.
Parameters are also now created if they are invisible, which means that the properties() function must not be called, but they must still be used like any other. This is due to a problem with default values not being applied all the time, and sometimes just vanishing.
The code also now throws exceptions with reasonable text, which should be caught by the gfx::shader implementation and refuse a load of the effect. No other state should be modified at that point, so care must be taken that up until the moment the complete initialization is done no other state is modified.
Thanks to the workaround in obs::tools, gfx::shader::shader now supports dynamically rebuilding the properties with new properties without crashing OBS Studio. This effectively allows you to have an up to date view of the current parameters for the shader technique.
Additionally with file watching, live development of shaders is possible at very little cost. Currently only file times and size is looked at every 333ms, but in the future it is possible to also watch for file renames and more.
Removes the stutter when re-opening the properties dialog which was caused by recompiling the same exact shader every time this happened. Also paves the way for simple file watching.
This is a massive improvement to stability and safety when using the plugin, as all exceptions should now no longer be leaked into C controlled code, which can't actually handle exceptions at all.
Warnings fixed:
* Potentially throwing exception during library load.
* Possibly throwing function passed to C.
* Statement does nothing.
* Variable is initialized but not referenced.
* Variable overloads variable in parent scope.
This fixes the case where the effect vanishes, but we still hold an invalid pointer to a parameter of that effect. With the new code, the effect will not vanish as long as an effect pointer exists.
However, all effects must be created either through std::shared_ptr or std::make_shared. If they were not made through one of those means, the code will crash on the ->shared_from_this() call.
Clang on Windows and Clang on Linux behave differently, and of course GCC on Windows (MinGW) and GCC on Linux do too. This is the point where using either compiler on either platform should successfully compile the project without any issues.
Clang and GCC have a ton of warnings however, which definitely need to be fixed in the near future. Some of them are great warnings, like old C style casts, others are non-sense like suggest brackets.
Fixes#47Fixes#60
To further distance the code from having to do too much manually, the graphics context is now available as a managed class. All places that previously used obs_enter_graphics and obs_leave_graphics are now using the new gs::context class instead.
Dual Filtering (or Dual Kawase) is an approximation of Gaussian Blur that can reach much higher Blur sizes at a much lower cost. However it is locked to a 2^n size, which means that currently it isn't possible to use it for blur sizes like 19, 24 and 31.
The Blur works by using the linear sampling of a GPU, combined with down- and upsampling and carefully placed sampling points. This means that there is no need for a linear optimized version of this Blur.
Related: #45, #6
