gistfile1.txt

// GLSL source

#version 450

layout(location = 0) uniform mat4 uMVP;
layout(location = 0) in vec4 aPosition;

void main()
{
    gl_Position = uMVP * aPosition;
}

// This C++ shader is autogenerated by TBDProjectName.
#include "TBDProjectName/internal_interface.hpp"
#include "TBDProjectName/external_interface.h"
#include <stdint.h>
#include <stdio.h>

using namespace TBDProjectName;
using namespace glm;

namespace Implementation
{
    struct Shader : VertexShader<Shader>
    {
        internal::StageInput<vec4> aPosition__;
        #define aPosition aPosition__.get()
        
        internal::UniformConstant<mat4> uMVP__;
        #define uMVP uMVP__.get()
        
        inline void entry_point()
        {
            gl_Position = (uMVP * aPosition);
        }
        
        Shader()
        {
            register_stage_input(aPosition__, 0);
            register_uniform_constant(uMVP__, 0);
        }
    };
}

TBDProjectName_shader_t* TBDProjectName_construct(void)
{
    return new Implementation::Shader();
}

void TBDProjectName_destruct(TBDProjectName_shader_t *shader)
{
    delete static_cast<Implementation::Shader*>(shader);
}

void TBDProjectName_invoke(TBDProjectName_shader_t *shader)
{
    static_cast<Implementation::Shader*>(shader)->invoke();
}

static const struct TBDProjectName_interface vtable =
{
    TBDProjectName_construct,
    TBDProjectName_destruct,
    TBDProjectName_invoke,
};

const struct TBDProjectName_interface* TBDProjectName_get_interface(void)
{
    return &vtable;
}

// Test code ...
int main()
{
    auto *iface = TBDProjectName_get_interface();
    auto *shader = iface->construct();

    vec4 pos = vec4(0.0f);
    vec4 inPos = vec4(1.0f);
    mat4 mvp = mat4(4.0f);
    TBDProjectName_set_builtin(shader, TBDPROJECTNAME_BUILTIN_POSITION, &pos, sizeof(pos));
    TBDProjectName_set_stage_input(shader, 0, &inPos, sizeof(inPos));
    TBDProjectName_set_uniform_constant(shader, 0, &mvp, sizeof(mvp));

    iface->invoke(shader);
    iface->destruct(shader);

    printf("%f %f %f %f\n", pos.x, pos.y, pos.z, pos.w);
}