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			428 lines
		
	
	
		
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			428 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			HLSL
		
	
	
	
	
	
| #ifndef _USER_SETTINGS_H
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| #define _USER_SETTINGS_H
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| 
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| /////////////////////////////  DRIVER CAPABILITIES  ////////////////////////////
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| 
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| //  The Cg compiler uses different "profiles" with different capabilities.
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| //  This shader requires a Cg compilation profile >= arbfp1, but a few options
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| //  require higher profiles like fp30 or fp40.  The shader can't detect profile
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| //  or driver capabilities, so instead you must comment or uncomment the lines
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| //  below with "//" before "#define."  Disable an option if you get compilation
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| //  errors resembling those listed.  Generally speaking, all of these options
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| //  will run on nVidia cards, but only _DRIVERS_ALLOW_TEX2DBIAS (if that) is
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| //  likely to run on ATI/AMD, due to the Cg compiler's profile limitations.
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| 
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| //  Derivatives: Unsupported on fp20, ps_1_1, ps_1_2, ps_1_3, and arbfp1.
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| //  Among other things, derivatives help us fix anisotropic filtering artifacts
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| //  with curved manually tiled phosphor mask coords.  Related errors:
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| //  error C3004: function "float2 ddx(float2);" not supported in this profile
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| //  error C3004: function "float2 ddy(float2);" not supported in this profile
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| #ifndef _DRIVERS_ALLOW_DERIVATIVES
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|     #define _DRIVERS_ALLOW_DERIVATIVES 0
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| #endif
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| 
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| //  Fine derivatives: Unsupported on older ATI cards.
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| //  Fine derivatives enable 2x2 fragment block communication, letting us perform
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| //  fast single-pass blur operations.  If your card uses coarse derivatives and
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| //  these are enabled, blurs could look broken.  Derivatives are a prerequisite.
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| #if _DRIVERS_ALLOW_DERIVATIVES
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|     #define _DRIVERS_ALLOW_FINE_DERIVATIVES
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| #endif
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| 
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| //  Dynamic looping: Requires an fp30 or newer profile.
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| //  This makes phosphor mask resampling faster in some cases.  Related errors:
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| //  error C5013: profile does not support "for" statements and "for" could not
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| //  be unrolled
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| #ifndef _DRIVERS_ALLOW_DYNAMIC_BRANCHES
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|     #define _DRIVERS_ALLOW_DYNAMIC_BRANCHES 0
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| #endif
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| 
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| //  Without _DRIVERS_ALLOW_DYNAMIC_BRANCHES, we need to use unrollable loops.
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| //  Using one static loop avoids overhead if the user is right, but if the user
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| //  is wrong (loops are allowed), breaking a loop into if-blocked pieces with a
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| //  binary search can potentially save some iterations.  However, it may fail:
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| //  error C6001: Temporary register limit of 32 exceeded; 35 registers
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| //  needed to compile program
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| #ifndef _ACCOMODATE_POSSIBLE_DYNAMIC_LOOPS
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|     #define _ACCOMODATE_POSSIBLE_DYNAMIC_LOOPS 0
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| #endif
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| 
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| //  tex2Dlod: Requires an fp40 or newer profile.  This can be used to disable
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| //  anisotropic filtering, thereby fixing related artifacts.  Related errors:
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| //  error C3004: function "float4 tex2Dlod(sampler2D, float4);" not supported in
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| //  this profile
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| // #ifndef _DRIVERS_ALLOW_TEX2DLOD
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| //     #define _DRIVERS_ALLOW_TEX2DLOD 1
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| // #endif
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| 
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| //  tex2Dbias: Requires an fp30 or newer profile.  This can be used to alleviate
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| //  artifacts from anisotropic filtering and mipmapping.  Related errors:
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| //  error C3004: function "float4 tex2Dbias(sampler2D, float4);" not supported
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| //  in this profile
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| // #ifndef _DRIVERS_ALLOW_TEX2DBIAS
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| //     #define _DRIVERS_ALLOW_TEX2DBIAS 0
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| // #endif
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| 
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| //  Integrated graphics compatibility: Integrated graphics like Intel HD 4000
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| //  impose stricter limitations on register counts and instructions.  Enable
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| //  _INTEGRATED_GRAPHICS_COMPATIBILITY_MODE if you still see error C6001 or:
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| //  error C6002: Instruction limit of 1024 exceeded: 1523 instructions needed
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| //  to compile program.
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| //  Enabling integrated graphics compatibility mode will automatically disable:
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| //  1.) _PHOSPHOR_MASK_MANUALLY_RESIZE: The phosphor mask will be softer.
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| //      (This may be reenabled in a later release.)
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| //  2.) _RUNTIME_GEOMETRY_MODE
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| //  3.) The high-quality 4x4 Gaussian resize for the bloom approximation
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| #ifndef _INTEGRATED_GRAPHICS_COMPATIBILITY_MODE
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|     #define _INTEGRATED_GRAPHICS_COMPATIBILITY_MODE 0
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| #endif
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| 
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| 
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| ////////////////////////////  USER CODEPATH OPTIONS  ///////////////////////////
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| 
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| //  To disable a #define option, turn its line into a comment with "//."
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| 
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| //  RUNTIME VS. COMPILE-TIME OPTIONS (Major Performance Implications):
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| //  Enable runtime shader parameters in the Retroarch (etc.) GUI?  They override
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| //  many of the options in this file and allow real-time tuning, but many of
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| //  them are slower.  Disabling them and using this text file will boost FPS.
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| #ifndef _RUNTIME_SHADER_PARAMS_ENABLE
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|     #define _RUNTIME_SHADER_PARAMS_ENABLE 1
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| #endif
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| //  Specify the phosphor bloom sigma at runtime?  This option is 10% slower, but
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| //  it's the only way to do a wide-enough full bloom with a runtime dot pitch.
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| #ifndef _RUNTIME_PHOSPHOR_BLOOM_SIGMA
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|     #define _RUNTIME_PHOSPHOR_BLOOM_SIGMA 1
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| #endif
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| //  Specify antialiasing weight parameters at runtime?  (Costs ~20% with cubics)
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| #ifndef _RUNTIME_ANTIALIAS_WEIGHTS
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|     #define _RUNTIME_ANTIALIAS_WEIGHTS 1
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| #endif
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| //  Specify subpixel offsets at runtime? (WARNING: EXTREMELY EXPENSIVE!)
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| #ifndef _RUNTIME_ANTIALIAS_SUBPIXEL_OFFSETS
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|     #define _RUNTIME_ANTIALIAS_SUBPIXEL_OFFSETS 0
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| #endif
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| //  Make beam_horiz_filter and beam_horiz_linear_rgb_weight into runtime shader
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| //  parameters?  This will require more math or dynamic branching.
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| #ifndef _RUNTIME_SCANLINES_HORIZ_FILTER_COLORSPACE
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|     #define _RUNTIME_SCANLINES_HORIZ_FILTER_COLORSPACE 1
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| #endif
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| //  Specify the tilt at runtime?  This makes things about 3% slower.
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| //    akgunter:
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| //    This is used in crt-royale-geometry-aa-last-pass.fxh.
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| //    I've hard-coded it to 1 and hidden it from the UI in the ReShade version because
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| //    I don't know a good way to port that logic. If anyone ever does figure that
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| //    out, we can uncomment and port that logic and then unhide this definition.
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| #define _RUNTIME_GEOMETRY_TILT 1
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| 
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| //  Specify the geometry mode at runtime?
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| #ifndef _RUNTIME_GEOMETRY_MODE
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|     #define _RUNTIME_GEOMETRY_MODE 1
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| #endif
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| //  Specify the phosphor mask type (aperture grille, slot mask, shadow mask) and
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| //  mode (Lanczos-resize, hardware resize, or tile 1:1) at runtime, even without
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| //  dynamic branches?  This is cheap if mask_resize_viewport_scale is small.
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| // #ifndef FORCE_RUNTIME_PHOSPHOR_MASK_MODE_TYPE_SELECT
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| //     #define FORCE_RUNTIME_PHOSPHOR_MASK_MODE_TYPE_SELECT 1
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| // #endif
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| 
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| //  PHOSPHOR MASK:
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| //  Choose between a 64x64 or 512x512 source for the phosphor mask
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| //  Mainly affects Sample Mode 1
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| // #ifndef USE_LARGE_PHOSPHOR_MASK
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| //     #define USE_LARGE_PHOSPHOR_MASK 1
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| // #endif
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| 
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| //  Manually resize the phosphor mask for best results (slower)?  Disabling this
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| //  removes the option to do so, but it may be faster without dynamic branches.
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| #ifndef _PHOSPHOR_MASK_MANUALLY_RESIZE
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|     #define _PHOSPHOR_MASK_MANUALLY_RESIZE 1
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| #endif
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| //  If we sinc-resize the mask, should we Lanczos-window it (slower but better)?
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| // #ifndef PHOSPHOR_MASK_RESIZE_LANCZOS_WINDOW
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| //     #define PHOSPHOR_MASK_RESIZE_LANCZOS_WINDOW 1
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| // #endif
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| //  Larger blurs are expensive, but we need them to blur larger triads.  We can
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| //  detect the right blur if the triad size is static or our profile allows
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| //  dynamic branches, but otherwise we use the largest blur the user indicates
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| //  they might need:
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| 
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| #define _PHOSPHOR_BLOOM_TRIADS_LARGER_THAN_3_PIXELS 1
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| #define _PHOSPHOR_BLOOM_TRIADS_LARGER_THAN_6_PIXELS 2
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| #define _PHOSPHOR_BLOOM_TRIADS_LARGER_THAN_9_PIXELS 3
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| #define _PHOSPHOR_BLOOM_TRIADS_LARGER_THAN_12_PIXELS 4
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| 
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| #if !_RUNTIME_PHOSPHOR_BLOOM_SIGMA
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|     #ifndef PHOSPHOR_BLOOM_TRIAD_SIZE_MODE
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|         #define PHOSPHOR_BLOOM_TRIAD_SIZE_MODE _PHOSPHOR_BLOOM_TRIADS_LARGER_THAN_3_PIXELS  // [0 - 4]
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|     #endif
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| #endif
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| 
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| //  Here's a helpful chart:
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| //  MaxTriadSize    BlurSize    MinTriadCountsByResolution
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| //  3.0             9.0         480/640/960/1920 triads at 1080p/1440p/2160p/4320p, 4:3 aspect
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| //  6.0             17.0        240/320/480/960 triads at 1080p/1440p/2160p/4320p, 4:3 aspect
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| //  9.0             25.0        160/213/320/640 triads at 1080p/1440p/2160p/4320p, 4:3 aspect
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| //  12.0            31.0        120/160/240/480 triads at 1080p/1440p/2160p/4320p, 4:3 aspect
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| //  18.0            43.0        80/107/160/320 triads at 1080p/1440p/2160p/4320p, 4:3 aspect
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| 
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| ///////////////////////////////  USER PARAMETERS  //////////////////////////////
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| 
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| //  Note: Many of these static parameters are overridden by runtime shader
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| //  parameters when those are enabled.  However, many others are static codepath
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| //  options that were cleaner or more convert to code as static constants.
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| 
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| //  GAMMA:
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| static const float crt_gamma_static = 2.5;                  //  range [1, 5]
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| static const float lcd_gamma_static = 2.2;                  //  range [1, 5]
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| 
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| //  LEVELS MANAGEMENT:
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| //  Control the final multiplicative image contrast:
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| static const float levels_contrast_static = 1.0;            //  range [0, 4)
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| //  We auto-dim to avoid clipping between passes and restore brightness
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| //  later.  Control the dim factor here: Lower values clip less but crush
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| //  blacks more (static only for now).
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| static const float levels_autodim_temp = 0.5;               //  range (0, 1] default is 0.5 but that was unnecessarily dark for me, so I set it to 1.0
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| 
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| //  HALATION/DIFFUSION/BLOOM:
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| //  Halation weight: How much energy should be lost to electrons bounding
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| //  around under the CRT glass and exciting random phosphors?
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| static const float halation_weight_static = 0.0;            //  range [0, 1]
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| //  Refractive diffusion weight: How much light should spread/diffuse from
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| //  refracting through the CRT glass?
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| static const float diffusion_weight_static = 0.075;         //  range [0, 1]
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| //  Underestimate brightness: Bright areas bloom more, but we can base the
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| //  bloom brightpass on a lower brightness to sharpen phosphors, or a higher
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| //  brightness to soften them.  Low values clip, but >= 0.8 looks okay.
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| static const float bloom_underestimate_levels_static = 0.8; //  range [0, 5]
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| //  Blur all colors more than necessary for a softer phosphor bloom?
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| static const float bloom_excess_static = 0.0;               //  range [0, 1]
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| //  The BLOOM_APPROX pass approximates a phosphor blur early on with a small
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| //  blurred resize of the input (convergence offsets are applied as well).
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| //  There are three filter options (static option only for now):
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| //  0.) Bilinear resize: A fast, close approximation to a 4x4 resize
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| //      if min_allowed_viewport_triads and the BLOOM_APPROX resolution are sane
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| //      and gaussian_beam_max_sigma is low.
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| //  1.) 3x3 resize blur: Medium speed, soft/smeared from bilinear blurring,
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| //      always uses a static sigma regardless of gaussian_beam_max_sigma or
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| //      mask_num_triads_across.
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| //  2.) True 4x4 Gaussian resize: Slowest, technically correct.
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| //  These options are more pronounced for the fast, unbloomed shader version.
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| #ifndef RADEON_FIX
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|     #define RADEON_FIX 0
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| #endif
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| 
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| #if !RADEON_FIX
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|     static const float bloom_approx_filter_static = 2.0;
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| #else
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|     static const float bloom_approx_filter_static = 1.0;
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| #endif
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| 
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| //  ELECTRON BEAM SCANLINE DISTRIBUTION:
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| //  How many scanlines should contribute light to each pixel?  Using more
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| //  scanlines is slower (especially for a generalized Gaussian) but less
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| //  distorted with larger beam sigmas (especially for a pure Gaussian).  The
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| //  max_beam_sigma at which the closest unused weight is guaranteed <
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| //  1.0/255.0 (for a 3x antialiased pure Gaussian) is:
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| //      2 scanlines: max_beam_sigma = 0.2089; distortions begin ~0.34; 141.7 FPS pure, 131.9 FPS generalized
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| //      3 scanlines, max_beam_sigma = 0.3879; distortions begin ~0.52; 137.5 FPS pure; 123.8 FPS generalized
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| //      4 scanlines, max_beam_sigma = 0.5723; distortions begin ~0.70; 134.7 FPS pure; 117.2 FPS generalized
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| //      5 scanlines, max_beam_sigma = 0.7591; distortions begin ~0.89; 131.6 FPS pure; 112.1 FPS generalized
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| //      6 scanlines, max_beam_sigma = 0.9483; distortions begin ~1.08; 127.9 FPS pure; 105.6 FPS generalized
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| static const float beam_num_scanlines = 3.0;                //  range [2, 6]
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| //  A generalized Gaussian beam varies shape with color too, now just width.
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| //  It's slower but more flexible (static option only for now).
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| static const bool beam_generalized_gaussian = true;
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| //  What kind of scanline antialiasing do you want?
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| //  0: Sample weights at 1x; 1: Sample weights at 3x; 2: Compute an integral
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| //  Integrals are slow (especially for generalized Gaussians) and rarely any
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| //  better than 3x antialiasing (static option only for now).
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| static const float beam_antialias_level = 1.0;              //  range [0, 2]
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| //  Min/max standard deviations for scanline beams: Higher values widen and
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| //  soften scanlines.  Depending on other options, low min sigmas can alias.
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| static const float gaussian_beam_min_sigma_static = 0.02;            //  range (0, 1]
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| static const float gaussian_beam_max_sigma_static = 0.3;             //  range (0, 1]
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| //  Beam width varies as a function of color: A power function (0) is more
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| //  configurable, but a spherical function (1) gives the widest beam
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| //  variability without aliasing (static option only for now).
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| static const float beam_spot_shape_function = 0.0;
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| //  Spot shape power: Powers <= 1 give smoother spot shapes but lower
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| //  sharpness.  Powers >= 1.0 are awful unless mix/max sigmas are close.
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| static const float gaussian_beam_spot_power_static = 1.0/3.0;    //  range (0, 16]
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| //  Generalized Gaussian max shape parameters: Higher values give flatter
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| //  scanline plateaus and steeper dropoffs, simultaneously widening and
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| //  sharpening scanlines at the cost of aliasing.  2.0 is pure Gaussian, and
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| //  values > ~40.0 cause artifacts with integrals.
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| static const float gaussian_beam_min_shape_static = 2.0;         //  range [2, 32]
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| static const float gaussian_beam_max_shape_static = 4.0;         //  range [2, 32]
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| //  Generalized Gaussian shape power: Affects how quickly the distribution
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| //  changes shape from Gaussian to steep/plateaued as color increases from 0
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| //  to 1.0.  Higher powers appear softer for most colors, and lower powers
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| //  appear sharper for most colors.
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| static const float gaussian_beam_shape_power_static = 1.0/4.0;   //  range (0, 16]
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| //  What filter should be used to sample scanlines horizontally?
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| //  0: Quilez (fast), 1: Gaussian (configurable), 2: Lanczos2 (sharp)
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| static const float beam_horiz_filter_static = 0.0;
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| //  Standard deviation for horizontal Gaussian resampling:
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| static const float beam_horiz_sigma_static = 0.35;      //  range (0, 2/3]
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| //  Do horizontal scanline sampling in linear RGB (correct light mixing),
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| //  gamma-encoded RGB (darker, hard spot shape, may better match bandwidth-
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| //  limiting circuitry in some CRT's), or a weighted avg.?
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| static const float beam_horiz_linear_rgb_weight_static = 1.0;   //  range [0, 1]
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| //  Simulate scanline misconvergence?  This needs 3x horizontal texture
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| //  samples and 3x texture samples of BLOOM_APPROX and HALATION_BLUR in
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| //  later passes (static option only for now).
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| static const bool beam_misconvergence = true;
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| //  Convergence offsets in x/y directions for R/G/B scanline beams in units
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| //  of scanlines.  Positive offsets go right/down; ranges [-2, 2]
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| static const float2 convergence_offsets_r_static = float2(0.1, 0.2);
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| static const float2 convergence_offsets_g_static = float2(0.3, 0.4);
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| static const float2 convergence_offsets_b_static = float2(0.5, 0.6);
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| //  Detect interlacing (static option only for now)?
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| static const bool interlace_detect = true;
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| //  Assume 1080-line sources are interlaced?
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| static const bool interlace_1080i_static = false;
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| //  For interlaced sources, assume TFF (top-field first) or BFF order?
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| //  (Whether this matters depends on the nature of the interlaced input.)
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| static const bool interlace_back_field_first_static = false;
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| 
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| //  ANTIALIASING:
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| //  What AA level do you want for curvature/overscan/subpixels?  Options:
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| //  0x (none), 1x (sample subpixels), 4x, 5x, 6x, 7x, 8x, 12x, 16x, 20x, 24x
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| //  (Static option only for now)
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| #ifndef antialias_level
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|     #define antialias_level 0.0
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| #endif
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| // static const float aa_level = 12.0;                     //  range [0, 24]
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| // static const float aa_level = 0.0;                     //  range [0, 24]
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| //  What antialiasing filter do you want (static option only)?  Options:
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| //  0: Box (separable), 1: Box (cylindrical),
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| //  2: Tent (separable), 3: Tent (cylindrical),
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| //  4: Gaussian (separable), 5: Gaussian (cylindrical),
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| //  6: Cubic* (separable), 7: Cubic* (cylindrical, poor)
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| //  8: Lanczos Sinc (separable), 9: Lanczos Jinc (cylindrical, poor)
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| //      * = Especially slow with _RUNTIME_ANTIALIAS_WEIGHTS
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| #ifndef antialias_filter
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|     #define antialias_filter 6
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| #endif
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| static const float aa_filter = antialias_filter;                     //  range [0, 9]
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| //  Flip the sample grid on odd/even frames (static option only for now)?
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| #ifndef antialias_temporal
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|     #define antialias_temporal false
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| #endif
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| static const bool aa_temporal = antialias_temporal;
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| //  Use RGB subpixel offsets for antialiasing?  The pixel is at green, and
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| //  the blue offset is the negative r offset; range [0, 0.5]
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| static const float2 aa_subpixel_r_offset_static = float2(-1.0/3.0, 0.0);//float2(0.0);
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| //  Cubics: See http://www.imagemagick.org/Usage/filter/#mitchell
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| //  1.) "Keys cubics" with B = 1 - 2C are considered the highest quality.
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| //  2.) C = 0.5 (default) is Catmull-Rom; higher C's apply sharpening.
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| //  3.) C = 1.0/3.0 is the Mitchell-Netravali filter.
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| //  4.) C = 0.0 is a soft spline filter.
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| static const float aa_cubic_c_static = 0.5;             //  range [0, 4]
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| //  Standard deviation for Gaussian antialiasing: Try 0.5/aa_pixel_diameter.
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| static const float aa_gauss_sigma_static = 0.5;     //  range [0.0625, 1.0]
 | |
| 
 | |
| //  PHOSPHOR MASK:
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| //  Mask type: 0 = aperture grille, 1 = slot mask, 2 = shadow mask
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| //  3 = lowres grille, 4 = lowres slot, 5 = lowres shadow
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| static const float mask_type_static = 4.0;                  //  range [0, 5]
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| //  We can sample the mask three ways.  Pick 2/3 from: Pretty/Fast/Flexible.
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| //  0.) Sinc-resize to the desired dot pitch manually (pretty/slow/flexible).
 | |
| //      This requires _PHOSPHOR_MASK_MANUALLY_RESIZE to be #defined.
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| //  1.) Hardware-resize to the desired dot pitch (ugly/fast/flexible).  This
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| //      is halfway decent with LUT mipmapping but atrocious without it.
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| //  2.) Tile it without resizing at a 1:1 texel:pixel ratio for flat coords
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| //      (pretty/fast/inflexible).  Each input LUT has a fixed dot pitch.
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| //      This mode reuses the same masks, so triads will be enormous unless
 | |
| //      you change the mask LUT filenames in your .cgp file.
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| static const float mask_sample_mode_static = 0.0;           //  range [0, 2]
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| //  Prefer setting the triad size (0.0) or number on the screen (1.0)?
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| //  If _RUNTIME_PHOSPHOR_BLOOM_SIGMA isn't #defined, the specified triad size
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| //  will always be used to calculate the full bloom sigma statically.
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| static const float mask_size_param_static = 0.0;    //  range [0, 1]
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| //  Specify the phosphor triad size, in pixels.  Each tile (usually with 8
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| //  triads) will be rounded to the nearest integer tile size and clamped to
 | |
| //  obey minimum size constraints (imposed to reduce downsize taps) and
 | |
| //  maximum size constraints (imposed to have a sane MASK_RESIZE FBO size).
 | |
| //  To increase the size limit, double the viewport-relative scales for the
 | |
| //  two MASK_RESIZE passes in crt-royale.cgp and user-cgp-contants.h.
 | |
| //      range [1, mask_texture_small_size/mask_triads_per_tile]
 | |
| static const float mask_triad_width_static = 24.0 / 8.0;
 | |
| //  If mask_size_param is 1.0/true, we'll go by this instead (the
 | |
| //  final size will be rounded and constrained as above); default 480.0
 | |
| static const float mask_num_triads_across_static = 480.0;
 | |
| //  How many lobes should the sinc/Lanczos resizer use?  More lobes require
 | |
| //  more samples and avoid moire a bit better, but some is unavoidable
 | |
| //  depending on the destination size (static option for now).
 | |
| static const float mask_sinc_lobes = 3.0;                   //  range [2, 4]
 | |
| //  The mask is resized using a variable number of taps in each dimension,
 | |
| //  but some Cg profiles always fetch a constant number of taps no matter
 | |
| //  what (no dynamic branching).  We can limit the maximum number of taps if
 | |
| //  we statically limit the minimum phosphor triad size.  Larger values are
 | |
| //  faster, but the limit IS enforced (static option only, forever);
 | |
| //      range [1, mask_texture_small_size/mask_triads_per_tile]
 | |
| //  TODO: Make this 1.0 and compensate with smarter sampling!
 | |
| static const float mask_min_allowed_triad_size = 2.0;
 | |
| 
 | |
| //  GEOMETRY:
 | |
| //  Geometry mode:
 | |
| //  0: Off (default), 1: Spherical mapping (like cgwg's),
 | |
| //  2: Alt. spherical mapping (more bulbous), 3: Cylindrical/Trinitron
 | |
| static const float geom_mode_static = 0.0;      //  range [0, 3]
 | |
| //  Radius of curvature: Measured in units of your viewport's diagonal size.
 | |
| static const float geom_radius_static = 2.0;    //  range [1/(2*pi), 1024]
 | |
| //  View dist is the distance from the player to their physical screen, in
 | |
| //  units of the viewport's diagonal size.  It controls the field of view.
 | |
| static const float geom_view_dist_static = 2.0; //  range [0.5, 1024]
 | |
| //  Tilt angle in radians (clockwise around up and right vectors):
 | |
| static const float2 geom_tilt_angle_static = float2(0.0, 0.0);  //  range [-pi, pi]
 | |
| //  Aspect ratio: When the true viewport size is unknown, this value is used
 | |
| //  to help convert between the phosphor triad size and count, along with
 | |
| //  the mask_resize_viewport_scale constant from user-cgp-constants.h.  Set
 | |
| //  this equal to Retroarch's display aspect ratio (DAR) for best results;
 | |
| //  range [1, geom_max_aspect_ratio from user-cgp-constants.h];
 | |
| //  default (256/224)*(54/47) = 1.313069909 (see below)
 | |
| static const float geom_aspect_ratio_static = 1.313069909;
 | |
| //  Before getting into overscan, here's some general aspect ratio info:
 | |
| //  - DAR = display aspect ratio = SAR * PAR; as in your Retroarch setting
 | |
| //  - SAR = storage aspect ratio = DAR / PAR; square pixel emulator frame AR
 | |
| //  - PAR = pixel aspect ratio   = DAR / SAR; holds regardless of cropping
 | |
| //  Geometry processing has to "undo" the screen-space 2D DAR to calculate
 | |
| //  3D view vectors, then reapplies the aspect ratio to the simulated CRT in
 | |
| //  uv-space.  To ensure the source SAR is intended for a ~4:3 DAR, either:
 | |
| //  a.) Enable Retroarch's "Crop Overscan"
 | |
| //  b.) Readd horizontal padding: Set overscan to e.g. N*(1.0, 240.0/224.0)
 | |
| //  Real consoles use horizontal black padding in the signal, but emulators
 | |
| //  often crop this without cropping the vertical padding; a 256x224 [S]NES
 | |
| //  frame (8:7 SAR) is intended for a ~4:3 DAR, but a 256x240 frame is not.
 | |
| //  The correct [S]NES PAR is 54:47, found by blargg and NewRisingSun:
 | |
| //      http://board.zsnes.com/phpBB3/viewtopic.php?f=22&t=11928&start=50
 | |
| //      http://forums.nesdev.com/viewtopic.php?p=24815#p24815
 | |
| //  For flat output, it's okay to set DAR = [existing] SAR * [correct] PAR
 | |
| //  without doing a. or b., but horizontal image borders will be tighter
 | |
| //  than vertical ones, messing up curvature and overscan.  Fixing the
 | |
| //  padding first corrects this.
 | |
| //  Overscan: Amount to "zoom in" before cropping.  You can zoom uniformly
 | |
| //  or adjust x/y independently to e.g. readd horizontal padding, as noted
 | |
| //  above: Values < 1.0 zoom out; range (0, inf)
 | |
| static const float2 geom_overscan_static = float2(1.0, 1.0);// * 1.005 * (1.0, 240/224.0)
 | |
| //  Compute a proper pixel-space to texture-space matrix even without ddx()/
 | |
| //  ddy()?  This is ~8.5% slower but improves antialiasing/subpixel filtering
 | |
| //  with strong curvature (static option only for now).
 | |
| static const bool geom_force_correct_tangent_matrix = true;
 | |
| 
 | |
| //  BORDERS:
 | |
| //  Rounded border size in texture uv coords:
 | |
| static const float border_size_static = 0.015;           //  range [0, 0.5]
 | |
| //  Border darkness: Moderate values darken the border smoothly, and high
 | |
| //  values make the image very dark just inside the border:
 | |
| static const float border_darkness_static = 2.0;        //  range [0, inf)
 | |
| //  Border compression: High numbers compress border transitions, narrowing
 | |
| //  the dark border area.
 | |
| static const float border_compress_static = 2.5;        //  range [1, inf)
 | |
| 
 | |
| // TODO: Nuke this
 | |
| #define mask_size_xy float2(512, 512)
 | |
| 
 | |
| #endif  //  _USER_SETTINGS_H | 
