* Remove broken scanline uniform from post_pass
* Add 3D LUT to HLSL
* Allow individual LUTs for screen and UI
* WIP: Port 3D LUT to BGFX
* Finish porting LUT to BGFX
* Add individual phosphor color conversion for HLSL
new file: hlsl/chroma.fx
Shader for converting xyY3 to sRGB
modified: hlsl/phosphor.fx
Minor changes to emphasize idea that phosphors are color
agnostic
modified: hlsl/post.fx
Conversion from signal RGB to xyY3
modified: src/osd/modules/render/d3d/d3dhlsl.cpp
modified: src/osd/modules/render/d3d/d3dhlsl.h
modified: src/osd/windows/winmain.cpp
modified: src/osd/windows/winmain.h
* Add phosphor examples and update presets
* Port phosphor color shaders to BGFX
* Fix missing newlines at EOF
hlsl/phosphor.fx: Remove hacks
ini/presets/raster.ini, ini/presets/vector-mono.ini,
ini/presets/vector.ini: Tweak presets
src/osd/modules/render/d3d/d3dcomm.h,
src/osd/modules/render/d3d/d3dhlsl.cpp,
src/osd/modules/render/drawd3d.cpp: Change cache texture format to
floating point for precise for phosphor and ghosting shaders.
* added simple procedural texture for vectors with rounded line ends and beam smoothness
* added optional -vector_beam_smooth option
* removed -antialias option, antialiasing is now always applied, except for plain D3D
- vector_length_ratio is now independent from screen size
- changed vector_length_ratio range from [0.0, 1000.0] to [0.0, 1.0]
- updated display name and description of vector_length_scale vector_length_ratio
- removed POT texture size from shadow mask in HLSL, U/V size is now simply the percentage of the actual texture size
- adjusted display names of options
- separated curvature parameter into distortion, cubic_distortion and distort_corner
- distortion and cubic_distortion can be negative, to compensate each other
- distort_corner is intependent from the image distortion
