interpolation.h

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// Software Rendering Pipeline (SRP) library
// Licensed under GNU GPLv3
 
#pragma once
 
#include "srp/shaders.h"
#include "srp/vec.h"
 
void interpolateDepthAndWTriangle(
    SRPVertexShaderOut* vertices, const float* weights, const float* invW,
    const SRPShaderProgram* sp, float* depth, float* reciprocalInterpolatedInvW
);
 
void interpolateDepthAndWLine(
    SRPVertexShaderOut* vertices, const float* weights, const float* invW,
    const SRPShaderProgram* sp, float* depth, float* reciprocalInterpolatedInvW
);
 
void interpolateAttributes(
    SRPVertexShaderOut* vertices, size_t nVertices, const float* weights,
    const float* invW, float reciprocalInterpolatedInvW, 
    const SRPShaderProgram* sp, SRPInterpolated* pOutput
);