pp_params.h

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#ifndef PP_PARAMS_H
#define PP_PARAMS_H
 
#include <cglm/types.h>
#include <stdint.h>
 
/* --- DEFAULT VALUES --- */
#define DEFAULT_VIGNETTE_INTENSITY 0.8F  
#define DEFAULT_VIGNETTE_SMOOTHNESS 0.5F 
#define DEFAULT_VIGNETTE_ROUNDNESS 1.0F  
#define DEFAULT_GRAIN_INTENSITY 0.02F    
#define DEFAULT_GRAIN_SHADOWS_MAX 0.09F
#define DEFAULT_GRAIN_HIGHLIGHTS_MIN 0.5F
#define DEFAULT_GRAIN_TEXEL_SIZE 1.0F
#define DEFAULT_EXPOSURE 1.00F
#define DEFAULT_CHROM_ABBR_STRENGTH 0.005F
 
/* FXAA Defaults */
#define DEFAULT_FXAA_SUBPIX 0.75F
#define DEFAULT_FXAA_EDGE_THRESHOLD 0.125F
#define DEFAULT_FXAA_EDGE_THRESHOLD_MIN 0.063F
 
/* Banding defaults */
#define DEFAULT_BANDING_LEVELS 256.0F 
/* Fog Defaults */
#define DEFAULT_FOG_DENSITY 0.0F
#define DEFAULT_FOG_START 10.0F
#define DEFAULT_FOG_HEIGHT_FALLOFF 0.1F
#define DEFAULT_FOG_COLOR_R 0.5F
#define DEFAULT_FOG_COLOR_G 0.6F
#define DEFAULT_FOG_COLOR_B 0.7F
 
/* White Balance Defaults */
#define DEFAULT_WB_TEMP 6500.0F
#define DEFAULT_WB_TINT 0.0F
 
/* Filmic Defaults (Safe Neutrals) */
#define DEFAULT_FILMIC_SLOPE 1.0F
#define DEFAULT_FILMIC_TOE 0.0F
#define DEFAULT_FILMIC_SHOULDER 0.0F
#define DEFAULT_FILMIC_BLACK_CLIP 0.0F
#define DEFAULT_FILMIC_WHITE_CLIP 0.0F
 
typedef struct {
    float saturation; 
    float contrast;   
    float gamma;      
    float gain;       
    float offset;     
    float lift;       
} ColorGradingParams;
 
typedef struct {
    float intensity;  
    float smoothness; 
    float roundness;  
} VignetteParams;
 
typedef struct {
    float intensity;            
    float intensity_shadows;    
    float intensity_midtones;   
    float intensity_highlights; 
    float shadows_max;          
    float highlights_min;       
    float texel_size;           
} GrainParams;
 
typedef struct {
    float exposure; 
} ExposureParams;
 
typedef struct {
    float strength; 
} ChromAbberationParams;
 
typedef struct {
    float temperature; 
    float tint;        
} WhiteBalanceParams;
 
typedef struct {
    float slope;      
    float toe;        
    float shoulder;   
    float black_clip; 
    float white_clip; 
} TonemapParams;
 
typedef struct {
    float subpix;         
    float edge_threshold; 
    float edge_threshold_min; 
} FXAAParams;
 
typedef enum {
    BANDING_MODE_LINEAR = 0,     
    BANDING_MODE_DITHERED = 1,   
    BANDING_MODE_PERCEPTUAL = 2, 
    BANDING_MODE_CHANNEL = 3,    
    BANDING_MODE_LUMINANCE = 4   
} BandingMode;
 
typedef struct {
    int32_t mode;           
    float levels;           
    float dither_strength;  
    float perceptual_gamma; 
    vec3 channel_levels;    
} BandingParams;
 
typedef struct {
    float density;        
    float start;          
    float height_falloff; 
    float color[3];       
} FogParams;
 
typedef enum {
    POSTFX_VIGNETTE = (1U << 0U),   
    POSTFX_GRAIN = (1U << 1U),      
    POSTFX_EXPOSURE = (1U << 2U),   
    POSTFX_CHROM_ABBR = (1U << 3U), 
    POSTFX_BLOOM = (1U << 4U),      
    POSTFX_COLOR_GRADING =
        (1U << 5U),          
    POSTFX_DOF = (1U << 6U), 
    POSTFX_DOF_DEBUG = (1U << 7U), 
    POSTFX_AUTO_EXPOSURE =
        (1U << 8U), 
    POSTFX_EXPOSURE_DEBUG =
        (1U << 9U), 
    POSTFX_MOTION_BLUR = (1U << 10U), 
    POSTFX_MOTION_BLUR_DEBUG =
        (1U << 11U),                 
    POSTFX_FXAA = (1U << 12U),       
    POSTFX_FXAA_DEBUG = (1U << 13U), 
    POSTFX_BANDING = (1U << 14U),    
    POSTFX_VECTOR_FIELD_DEBUG =
        (1U << 15U), 
    POSTFX_STENCIL_DEBUG = (1U << 16U), 
    POSTFX_BLOOM_DEBUG = (1U << 17U),   
    POSTFX_FOG = (1U << 18U),           
    POSTFX_FOG_DEBUG = (1U << 19U),     
    POSTFX_LUT3D = (1U << 20U),         
    POSTFX_LUT_VIZ = (1U << 21U), 
} PostProcessEffect;
 
#define DEFAULT_ACTIVE_EFFECTS                                                \
    ((unsigned int)POSTFX_EXPOSURE | (unsigned int)POSTFX_COLOR_GRADING | \
     (unsigned int)POSTFX_FXAA)
 
#endif /* PP_PARAMS_H */