* We change to use VarType instead of CompType for signature parameters which
allows us to represent different types of variables beyond just
unsigned/signed integer and float.
* We instead always have 3rdparty/ in the relevant include search paths and rely
on that. Each library still has its own unique base dir within 3rdparty to
clarify where the include is coming from.
* We don't want to have glslang specific bits mixed in with general SPIR-V bits.
This is also preparing for moving some SPIR-V structs into common code that
can be re-used in new reflection/disassembly as well as editing.
Detected two shader compile errors while replaying GLES apps:
1. „#extension directive must occur before any non-preprocessor token” - Fix the order of precisions and extensions in the shader code.
2. „extension 'GL_OES_texture_cube_map_array' is not supported” - Do not add extensions if they are actually not supported. TEXTURE_CUBE_MAP_ARRAY was added to GLES 3.2 so GL_OES_texture_cube_map_array and GL_EXT_texture_cube_map_array are no longer used.
* Split up old uber-cbuffers used for unrelated shaders into shader-specific
cbuffers (DebugPixelCBufferData -> TexDisplayPSCBuffer / CheckerboardCBuffer /
MeshPixelCBuffer).
* Split up HLSL files so not everything is lumped into 'debugdisplay.hlsl' but
has separate files as appropriate.
* Use #include in GLSL and HLSL to better organise shader code together rather
than relying on lumping files together on the C++ side.
* Renamed files like 'debugcbuffers.h' to 'hlsl_cbuffers.h'.
* Trimmed out some extensions/cruft that isn't needed in the GLSL side since we
no longer use separable shaders.
* Combine some shaders like Outline/Checkerboard that were similar into central
place.
* For some #extensions we can fallback to a lesser path (or just drop
that functionality - e.g. displaying cubemap arrays if there's no
extension for it).
baldurk