validate_shaders()

bool MayaFlux::Core::VKGraphicsPipeline::validate_shaders ( const GraphicsPipelineConfig &  config )

private

Validate shader stages.

Definition at line 341 of file VKGraphicsPipeline.cpp.

{
    const bool has_mesh = config.mesh_shader != nullptr;
 
    if (has_mesh) {
        if (config.mesh_shader->get_stage() != vk::ShaderStageFlagBits::eMeshEXT) {
            MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
                "Mesh shader must have stage eMeshEXT");
            return false;
        }
        if (config.task_shader && config.task_shader->get_stage() != vk::ShaderStageFlagBits::eTaskEXT) {
            MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
                "Task shader must have stage eTaskEXT");
            return false;
        }
 
        if (config.vertex_shader || config.geometry_shader || config.tess_control_shader || config.tess_evaluation_shader) {
            MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
                "Mesh shading pipeline cannot contain vertex/geometry/tessellation shaders");
            return false;
        }
        return true;
    }
 
    if (!config.vertex_shader) {
        MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
            "Graphics pipeline requires a vertex shader");
        return false;
    }
 
    if (!config.vertex_shader->is_valid()) {
        MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
            "Vertex shader is not valid");
        return false;
    }
 
    if (config.vertex_shader->get_stage() != vk::ShaderStageFlagBits::eVertex) {
        MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
            "Vertex shader has wrong stage: {}", vk::to_string(config.vertex_shader->get_stage()));
        return false;
    }
 
    if (config.fragment_shader && config.fragment_shader->get_stage() != vk::ShaderStageFlagBits::eFragment) {
        MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
            "Fragment shader has wrong stage: {}", vk::to_string(config.fragment_shader->get_stage()));
        return false;
    }
 
    if (config.geometry_shader && config.geometry_shader->get_stage() != vk::ShaderStageFlagBits::eGeometry) {
        MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
            "Geometry shader has wrong stage");
        return false;
    }
 
    if (config.tess_control_shader && config.tess_control_shader->get_stage() != vk::ShaderStageFlagBits::eTessellationControl) {
        MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
            "Tessellation control shader has wrong stage");
        return false;
    }
 
    if (config.tess_evaluation_shader && config.tess_evaluation_shader->get_stage() != vk::ShaderStageFlagBits::eTessellationEvaluation) {
        MF_ERROR(Journal::Component::Core, Journal::Context::GraphicsBackend,
            "Tessellation evaluation shader has wrong stage");
        return false;
    }
 
    return true;
}

References MayaFlux::Journal::Core, MayaFlux::Core::GraphicsPipelineConfig::fragment_shader, MayaFlux::Core::GraphicsPipelineConfig::geometry_shader, MayaFlux::Journal::GraphicsBackend, MayaFlux::Core::GraphicsPipelineConfig::mesh_shader, MF_ERROR, MayaFlux::Core::GraphicsPipelineConfig::task_shader, MayaFlux::Core::GraphicsPipelineConfig::tess_control_shader, MayaFlux::Core::GraphicsPipelineConfig::tess_evaluation_shader, and MayaFlux::Core::GraphicsPipelineConfig::vertex_shader.

Referenced by create().

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