ensure_kernel()

bool MayaFlux::Portal::Graphics::PrimitiveMill::ensure_kernel ( )

private

Compiles the kernel and allocates its descriptor sets, once.

Definition at line 485 of file PrimitiveMill.cpp.

{
    if (m_pipeline != INVALID_COMPUTE_PIPELINE) {
        return true;
    }
 
    const auto spec = build_mill_spec();
    m_push_constant_size = spec.push_constant_bytes;
 
    if (m_push_constant_size != sizeof(MillPC)) {
        MF_ERROR(Journal::Component::Portal, Journal::Context::Rendering,
            "PrimitiveMill: kernel expects {} push constant bytes but MillPC is {}",
            m_push_constant_size, sizeof(MillPC));
        return false;
    }
 
    auto& foundry = get_shader_foundry();
    m_shader = foundry.load_shader(spec);
    if (m_shader == INVALID_SHADER) {
        MF_ERROR(Journal::Component::Portal, Journal::Context::Rendering,
            "PrimitiveMill: kernel failed to compile");
        return false;
    }
 
    auto& press = get_compute_press();
    m_pipeline = press.create_pipeline_auto(m_shader, m_push_constant_size);
    if (m_pipeline == INVALID_COMPUTE_PIPELINE) {
        MF_ERROR(Journal::Component::Portal, Journal::Context::Rendering,
            "PrimitiveMill: pipeline creation failed");
        return false;
    }
 
    m_sets = press.allocate_pipeline_descriptors(m_pipeline);
    if (m_sets.empty()) {
        MF_ERROR(Journal::Component::Portal, Journal::Context::Rendering,
            "PrimitiveMill: descriptor allocation failed");
        return false;
    }
 
    return true;
}

References MayaFlux::Portal::Graphics::get_compute_press(), MayaFlux::Portal::Graphics::get_shader_foundry(), MayaFlux::Portal::Graphics::INVALID_COMPUTE_PIPELINE, MayaFlux::Portal::Graphics::INVALID_SHADER, m_pipeline, m_push_constant_size, m_sets, m_shader, MF_ERROR, MayaFlux::Journal::Portal, MayaFlux::Journal::Rendering, and spec().

Referenced by mill().

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