PipelineImage_Vertex.hpp

// Copyright 2019 Pokitec
// All rights reserved.
 
#pragma once
 
#include "TTauri/GUI/PipelineImage_ImageLocation.hpp"
#include "TTauri/Foundation/vec.hpp"
#include "TTauri/Foundation/aarect.hpp"
#include "TTauri/Foundation/R32G32B32SFloat.hpp"
#include "TTauri/Foundation/R32G32B32A32SFloat.hpp"
#include <vulkan/vulkan.hpp>
 
namespace tt::PipelineImage {
 
struct Vertex {
    R32G32B32SFloat position;
 
    R32G32B32A32SFloat clippingRectangle;
 
    R32G32B32SFloat atlasPosition;
 
    Vertex(vec position, vec atlasPosition, aarect clippingRectangle) noexcept :
        position(position),
        clippingRectangle(clippingRectangle),
        atlasPosition(atlasPosition) {}
 
    static vk::VertexInputBindingDescription inputBindingDescription()
    {
        return {
            0, sizeof(Vertex), vk::VertexInputRate::eVertex
        };
    }
 
    static std::vector<vk::VertexInputAttributeDescription> inputAttributeDescriptions()
    {
        return {
            { 0, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, position) },
            { 1, 0, vk::Format::eR32G32B32A32Sfloat, offsetof(Vertex, clippingRectangle) },
            { 2, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, atlasPosition) },                
        };
    }
};
}