postprocess_internal.h

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#ifndef POSTPROCESS_INTERNAL_H
#define POSTPROCESS_INTERNAL_H
 
#include "effects/fx_auto_exposure.h"
#include "effects/fx_bloom.h"
#include "effects/fx_dof.h"
#include "effects/fx_lut3d.h"
#include "effects/fx_lut_viz.h"
#include "effects/fx_motion_blur.h"
#include "gpu_profiler.h"
#include "postprocess.h"
#include "pp_exposure_readback.h"
#include "pp_gpu_resources.h"
#include "pp_params.h"
#include "pp_shader_state.h"
#include "pp_ubo.h"
#include "shader.h"
#include <cglm/types.h>
#include <stdbool.h>
 
/* --- FX-specific DEFAULT VALUES (owned by PostProcess init) --- */
#define DEFAULT_BLOOM_INTENSITY 0.0F
#define DEFAULT_BLOOM_THRESHOLD 1.0F
#define DEFAULT_BLOOM_SOFT_THRESHOLD 0.5F
#define DEFAULT_BLOOM_RADIUS 1.0F
 
/* DoF defaults */
#define DEFAULT_DOF_FOCAL_DISTANCE 20.0F
#define DEFAULT_DOF_FOCAL_RANGE 5.0F
#define DEFAULT_DOF_BOKEH_SCALE 10.0F
#define DEFAULT_DOF_ANAMORPHIC_RATIO \
    1.0F 
struct PostProcess {
    /* GPU Resources */
    PPGPUResources gpu; 
    /* Module Resources */
    BloomFX bloom_fx;                
    DoFFX dof_fx;                    
    AutoExposureFX auto_exposure_fx; 
    MotionBlurFX motion_blur_fx;     
    LUT3DFX lut3d_fx;                
    LUTVizFX lut_viz_fx;             
    /* Shader Management */
    PPShaderState shaders; 
    int width;  
    int height; 
    unsigned int active_effects; 
    /* Logic Parameters */
    VignetteParams vignette;
    GrainParams grain;
    ExposureParams exposure;
    ChromAbberationParams chrom_abbr;
    WhiteBalanceParams white_balance;
    ColorGradingParams color_grading;
    TonemapParams tonemapper;
    BloomParams bloom;
    DoFParams dof;
    AutoExposureParams auto_exposure;
    MotionBlurParams motion_blur;
    FXAAParams fxaa;
    BandingParams banding;
    FogParams fog;
    LUT3DParams lut3d;
 
    float time;       
    float delta_time; 
    bool ubo_dirty;   
    GPUProfiler* gpu_profiler;
    int banding_preset_idx; 
    /* Exposure Readback */
    PPExposureReadback readback; 
};
 
struct PostProcessPreset {
    unsigned int active_effects;
    VignetteParams vignette;
    GrainParams grain;
    ExposureParams exposure;
    ChromAbberationParams chrom_abbr;
    WhiteBalanceParams white_balance;
    ColorGradingParams color_grading;
    TonemapParams tonemapper;
    BloomParams bloom;
    DoFParams dof;
    FXAAParams fxaa;
    BandingParams banding;
    FogParams fog;
    LUT3DParams lut3d;
};
 
/* ---- Texture Units (shared across init, apply, shader TUs) ---- */
enum {
    POSTPROCESS_TEX_UNIT_SCENE = 0,
    POSTPROCESS_TEX_UNIT_BLOOM = 1,
    POSTPROCESS_TEX_UNIT_DEPTH = 2,
    POSTPROCESS_TEX_UNIT_EXPOSURE = 3,
    POSTPROCESS_TEX_UNIT_VELOCITY = 4,
    POSTPROCESS_TEX_UNIT_NEIGHBOR_MAX = 5,
    POSTPROCESS_TEX_UNIT_DOF_BLUR = 6,
    POSTPROCESS_TEX_UNIT_STENCIL = 7,
    POSTPROCESS_TEX_UNIT_LUT3D = 8
};
 
/* ---- Internal helpers shared across TUs ---- */
 
void pp_destroy_framebuffer(PostProcess* post_processing);
 
void pp_destroy_screen_quad(PostProcess* post_processing);
 
void pp_destroy_readback_buffers(PostProcess* post_processing);
 
void pp_destroy_cached_shaders(PostProcess* post_processing);
 
bool pp_is_shader_in_cache(PostProcess* post_processing, Shader* shader);
 
int pp_create_framebuffer(PostProcess* post_processing);
 
void pp_setup_sampler_uniforms(PostProcess* post_processing);
 
void pp_update_current_shader(PostProcess* post_processing, Shader* new_shader,
                              bool is_optimized);
 
#endif /* POSTPROCESS_INTERNAL_H */