triangle.h

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// Software Rendering Pipeline (SRP) library
// Licensed under GNU GPLv3
 
#pragma once
 
#include "srp/framebuffer.h"
#include "srp/shaders.h"
#include "srp/vec.h"
 
typedef struct SRPTriangle {
    SRPVertexShaderOut v[3];  
    vec3* p_ndc[3];           
    vec3 ss[3];               
    vec3 edge[3];             
    bool edgeTL[3];           
    vec2 minBP;               
    vec2 maxBP;               
    float lambda[3];          
    float lambda_row[3];      
    float dldx[3];            
    float dldy[3];            
    float invW[3];            
    bool isFrontFacing;       
    size_t id;                
} SRPTriangle;
 
bool setupTriangle(SRPTriangle* tri, const SRPFramebuffer* fb);
 
void rasterizeTriangle(
    SRPTriangle* triangle, const SRPFramebuffer* fb,
    const SRPShaderProgram* restrict sp, void* interpolatedBuffer
);