pipeline_image_vertex.hpp

// Copyright Take Vos 2019-2020.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include "../geometry/axis_aligned_rectangle.hpp"
#include "../rapid/sfloat_rgba32.hpp"
#include <vulkan/vulkan.hpp>
 
namespace hi::inline v1::pipeline_image {
 
struct alignas(16) vertex {
    sfloat_rgba32 position;
 
    sfloat_rgba32 clipping_rectangle;
 
    sfloat_rgba32 atlas_position;
 
    vertex(sfloat_rgba32 position, sfloat_rgba32 clipping_rectangle, sfloat_rgba32 atlas_position) noexcept :
        position(position), clipping_rectangle(clipping_rectangle), atlas_position(atlas_position)
    {
    }
 
    static vk::VertexInputBindingDescription inputBindingDescription()
    {
        return {0, sizeof(vertex), vk::VertexInputRate::eVertex};
    }
 
    static std::vector<vk::VertexInputAttributeDescription> inputAttributeDescriptions()
    {
        return {
            {0, 0, vk::Format::eR32G32B32A32Sfloat, offsetof(vertex, position)},
            {1, 0, vk::Format::eR32G32B32A32Sfloat, offsetof(vertex, clipping_rectangle)},
            {2, 0, vk::Format::eR32G32B32A32Sfloat, offsetof(vertex, atlas_position)},
        };
    }
};
 
} // namespace hi::inline v1::pipeline_image