Depth test.

CMakeLists.txt

@@ -1,3 +1,5 @@
+# Copyright 2022 Simon Boyé
+
 cmake_minimum_required(VERSION 3.0.0)
 project(vk_expe VERSION 0.1.0)
 
@@ -30,17 +32,41 @@ function(add_shaders TARGET)
 endfunction()
 
 add_executable(vk_expe
-    src/Vulkan/Context.cpp
+    src/core/math.cpp
-    src/Vulkan/Swapchain.cpp
+    src/core/utils.cpp
+    src/core/Logger.cpp
+
+    src/vk/Wrapper.cpp
+    src/vk/Context.cpp
+    src/vk/CommandPool.cpp
+    src/vk/CommandBuffer.cpp
+    src/vk/Fence.cpp
+    src/vk/Semaphore.cpp
+    src/vk/RenderPass.cpp
+    src/vk/Framebuffer.cpp
+    src/vk/ShaderModule.cpp
+    src/vk/Pipeline.cpp
+    src/vk/Memory.cpp
+    src/vk/Buffer.cpp
+    src/vk/Image.cpp
+    src/vk/ImageView.cpp
+    src/vk/DescriptorSetLayout.cpp
+    src/vk/PipelineLayout.cpp
+    src/vk/DescriptorPool.cpp
+    src/vk/DescriptorSet.cpp
+    src/vk/Swapchain.cpp
+
     src/main.cpp
-    src/utils.cpp
+    src/Camera.cpp
-    src/Logger.cpp
+    src/Simplex.cpp
+    src/Planet.cpp
     src/VkExpe.cpp
-    src/VulkanTutorial.cpp
+    src/Renderer.cpp
 )
 
 add_shaders(vk_expe
     shaders/shader.vert
+    shaders/shader.geom
     shaders/shader.frag
 )
 

README.md

@@ -0,0 +1,2 @@
+# vk_expe - A simple project to experiment with Vulkan
+

shaders/shader.frag

@@ -1,9 +1,29 @@
+// Copyright 2022 Simon Boyé
 #version 450
 
-layout(location = 0) in vec3 fragColor;
+layout(location = 1) in vec3 in_normal;
+layout(location = 2) in vec3 in_color;
+layout(location = 3) in vec3 in_edge_dist;
 
-layout(location = 0) out vec4 outColor;
+layout(location = 0) out vec4 out_color;
 
 void main() {
-    outColor = vec4(fragColor, 1.0);
+    vec3 edge_dist = vec3(0.75) - in_edge_dist;
+    float edge = clamp(
+        max(edge_dist[0], max(edge_dist[1], edge_dist[2])),
+        0.0, 1.0
+    );
+
+    vec3 edge_color = vec3(1.0);
+    vec3 light_dir = normalize(vec3(-0.2, -0.1, -1.0));
+
+    vec3 color = in_color;
+
+    // vec3 normal = normalize(in_normal);
+    // color *= clamp(
+    //     dot(normal, light_dir),
+    //     0.0, 1.0
+    // );
+
+    out_color = vec4(mix(color, edge_color, edge), 1.0);
 }

shaders/shader.geom

@@ -0,0 +1,50 @@
+// Copyright 2022 Simon Boyé
+#version 450
+
+layout(triangles) in;
+layout(triangle_strip, max_vertices=3) out;
+
+layout(binding = 0) uniform Uniforms {
+    mat4 scene_from_model;
+    mat4 projection_from_scene;
+    vec2 half_screen_size;
+    float lod;
+} uniforms;
+
+layout(location = 0) in vec4 in_position[3];
+layout(location = 1) in vec3 in_normal[3];
+layout(location = 2) in vec3 in_color[3];
+
+layout(location = 0) out vec4 out_position;
+layout(location = 1) out vec3 out_normal;
+layout(location = 2) out vec3 out_color;
+layout(location = 3) noperspective out vec3 out_edge_dist;
+
+void main() {
+    vec2 positions[3] = {
+        uniforms.half_screen_size * gl_in[0].gl_Position.xy / gl_in[0].gl_Position.w,
+        uniforms.half_screen_size * gl_in[1].gl_Position.xy / gl_in[1].gl_Position.w,
+        uniforms.half_screen_size * gl_in[2].gl_Position.xy / gl_in[2].gl_Position.w,
+    };
+
+    for(int i = 0; i < 3; i += 1) {
+        gl_Position = gl_in[i].gl_Position;
+        out_position = in_position[i];
+        out_normal = in_normal[i];
+        out_color = in_color[i];
+        out_edge_dist = vec3(0.0);
+
+        vec2 p0 = positions[(i + 0) % 3];
+        vec2 p1 = positions[(i + 1) % 3];
+        vec2 p2 = positions[(i + 2) % 3];
+
+        // vec2 v21 = p2 - p1;
+        // out_edge_dist[i] = (p1.x * v21.x + p1.y * v21.y) / dot(v21, v21);
+
+        vec2 v0 = p0 - p2;
+        vec2 v1 = p1 - p2;
+        out_edge_dist[i] = abs(determinant(mat2(v0, v1))) / length(v1);
+
+        EmitVertex();
+    }
+}

shaders/shader.vert

@@ -1,11 +1,35 @@
+// Copyright 2022 Simon Boyé
 #version 450
 
-layout(location = 0) in vec2 inPosition;
+layout(binding = 0) uniform Uniforms {
-layout(location = 1) in vec3 inColor;
+    mat4 scene_from_model;
+    mat4 projection_from_scene;
+    vec2 screen_size;
+    float lod;
+} uniforms;
 
-layout(location = 0) out vec3 fragColor;
+layout(location = 0) in vec3 in_position;
+layout(location = 1) in vec3 in_position2;
+layout(location = 2) in vec3 in_normal;
+layout(location = 3) in vec3 in_color;
+
+layout(location = 0) out vec4 out_position;
+layout(location = 1) out vec3 out_normal;
+layout(location = 2) out vec3 out_color;
 
 void main() {
-    gl_Position = vec4(inPosition, 0.0, 1.0);
+    // float lod = clamp(
-    fragColor = inColor;
+    //     2.0 * dot(transpose(uniforms.scene_from_model)[0].xyz, in_position) + 0.5,
+    //     0.0, 1.0
+    // );
+    // vec3 position = mix(in_position2, in_position, lod);
+    vec3 position = in_position;
+    out_position =
+        uniforms.projection_from_scene *
+        uniforms.scene_from_model *
+        vec4(position, 1.0);
+    out_normal = in_normal;
+    out_color = in_color;
+
+    gl_Position = out_position;
 }

src/Camera.cpp

@@ -0,0 +1,70 @@
+// Copyright 2022 Simon Boyé
+
+#include <Camera.h>
+
+
+Camera::Camera() noexcept
+    : m_left(-1)
+    , m_right(1)
+    , m_top(-1)
+    , m_bottom(1)
+    , m_near(0.1)
+    , m_far(100)
+    , m_position(Vector3::Zero())
+    , m_direction(Vector3::UnitZ())
+    , m_down(Vector3::UnitY())
+{}
+
+Camera::~Camera() = default;
+
+
+void Camera::set_projection(Real h_fov, Real width_height_ratio) noexcept {
+    const Real hx = std::tan(h_fov / Real(2));
+    const Real hy = hx / width_height_ratio;
+    set_projection(
+        -hx, hx,
+        -hy, hy
+    );
+}
+
+void Camera::update_aspect_ratio(Real width_height_ratio) noexcept {
+    const Real prev_ratio = (m_right - m_left) / (m_bottom - m_top);
+    const Real next_ratio = width_height_ratio;
+
+    const Real sx = (Real(1) + Real(1) / prev_ratio) / (Real(1) + Real(1) / next_ratio);
+    const Real sy = (Real(1) + prev_ratio) / (Real(1) + next_ratio);
+
+    m_left *= sx;
+    m_right *= sx;
+    m_top *= sy;
+    m_bottom *= sy;
+}
+
+
+Matrix3 Camera::basis() const noexcept {
+    Matrix3 basis;
+    basis << m_down.cross(m_direction), m_down, m_direction;
+    return basis;
+}
+
+Matrix4 Camera::view_matrix() const noexcept {
+    Matrix3 linear_view;
+    linear_view <<
+        m_down.cross(m_direction).transpose(),
+        m_down.transpose(),
+        m_direction.transpose();
+    Matrix4 view;
+    view << linear_view, linear_view * -m_position,
+        Vector4::UnitW().transpose();
+    return view;
+}
+
+Matrix4 Camera::projection_matrix() const noexcept {
+    return ::projection_matrix(
+        m_near * m_left, m_near * m_right,
+        m_near * m_top, m_near * m_bottom,
+        m_near, m_far
+    );
+}
+
+

src/Camera.h

@@ -0,0 +1,92 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/math.h>
+
+
+class Camera {
+public:
+    Camera() noexcept;
+    ~Camera();
+
+    inline Real left() const noexcept {
+        return m_left;
+    }
+
+    inline Real right() const noexcept {
+        return m_right;
+    }
+
+    inline Real top() const noexcept {
+        return m_top;
+    }
+
+    inline Real bottom() const noexcept {
+        return m_bottom;
+    }
+
+    void set_projection(Real left, Real right, Real top, Real bottom) noexcept {
+        m_left = left;
+        m_right = right;
+        m_top = top;
+        m_bottom = bottom;
+    }
+    void set_projection(Real h_fov, Real width_height_ratio) noexcept;
+    void update_aspect_ratio(Real width_height_ratio) noexcept;
+
+
+    inline Real near() const noexcept {
+        return m_near;
+    }
+
+    inline Real far() const noexcept {
+        return m_far;
+    }
+
+    void set_clip_distances(Real near, Real far) noexcept {
+        m_near = near;
+        m_far = far;
+    }
+
+
+    inline Vector3 position() const noexcept {
+        return m_position;
+    }
+
+    inline void set_position(const Vector3& position) noexcept {
+        m_position = position;
+    }
+
+    inline Vector3 direction() const noexcept {
+        return m_direction;
+    }
+
+    inline void set_direction(const Vector3& direction) noexcept {
+        m_direction = direction;
+    }
+
+    inline Vector3 down() const noexcept {
+        return m_down;
+    }
+
+    inline void set_down(const Vector3& down) noexcept {
+        m_down = down;
+    }
+
+    Matrix3 basis() const noexcept;
+    Matrix4 view_matrix() const noexcept;
+    Matrix4 projection_matrix() const noexcept;
+
+private:
+    Real m_left;
+    Real m_right;
+    Real m_top;
+    Real m_bottom;
+
+    Real m_near;
+    Real m_far;
+
+    Vector3 m_position;
+    Vector3 m_direction;
+    Vector3 m_down;
+};

src/Planet.cpp

@@ -0,0 +1,232 @@
+// Copyright 2022 Simon Boyé
+
+#include <Planet.h>
+
+#include <core/Logger.h>
+
+#include <cassert>
+#include <vector>
+
+
+Cell::Cell(
+    const Vector3& corner00,
+    const Vector3& corner01,
+    const Vector3& corner10,
+    const Vector3& corner11
+)
+    : m_corners{ corner00, corner01, corner10, corner11 }
+    , m_height_factor(height_factor(m_corners))
+    , m_cells{ nullptr, nullptr, nullptr, nullptr }
+{}
+
+Cell& Cell::cell(uint32_t cell_index) {
+    assert(cell_index < CellCount);
+    auto& cell = m_cells[cell_index];
+    if(!cell)
+    {
+        // TODO
+    }
+    return *cell;
+}
+
+size_t Cell::vertex_count(uint32_t subdiv_count) {
+    auto const s2 = 1 << subdiv_count;
+    return s2 * s2 + 2 * s2 + 1;
+}
+
+size_t Cell::triangle_count(uint32_t subdiv_count) {
+    auto const s2 = 1 << subdiv_count;
+    return 2 * s2 * s2;
+}
+
+void Cell::build_mesh(
+    Vector3AV positions, Vector3AV positions2, Vector3AV normals, TriangleAV triangles,
+    uint32_t subdiv_count, Index index_offset
+) const {
+    auto const side_edge_count = (1u << subdiv_count);
+    auto const side_vert_count = side_edge_count + 1;
+
+    auto const quad_count = side_edge_count * side_edge_count;
+    auto const tri_count = 2 * quad_count;
+    auto const vert_count = side_vert_count * side_vert_count;
+
+    assert(positions.size() == vert_count);
+    assert(triangles.size() == tri_count);
+
+    auto const index = [side_vert_count](uint32_t x, uint32_t y) -> uint32_t {
+        return x + y * side_vert_count;
+    };
+    auto const vertex = [&normals, &index](uint32_t x, uint32_t y) -> Vector3& {
+        return normals[index(x, y)];
+    };
+
+    vertex(              0,               0) = m_corners[0];
+    vertex(side_edge_count,               0) = m_corners[1];
+    vertex(              0, side_edge_count) = m_corners[2];
+    vertex(side_edge_count, side_edge_count) = m_corners[3];
+
+    struct QuadCell {
+        uint32_t x0, x1, y0, y1;
+    };
+    std::vector<QuadCell> stack;
+    stack.reserve(quad_count / 4);
+    if(subdiv_count > 0) {
+        stack.emplace_back(QuadCell {
+            0, side_edge_count,
+            0, side_edge_count,
+        });
+    }
+
+    while(!stack.empty()) {
+        const auto quad_cell = stack.back();
+        stack.pop_back();
+
+        auto const mx = (quad_cell.x0 + quad_cell.x1) / 2;
+        auto const my = (quad_cell.y0 + quad_cell.y1) / 2;
+
+        auto const& v00 = vertex(quad_cell.x0, quad_cell.y0);
+        auto const& v01 = vertex(quad_cell.x1, quad_cell.y0);
+        auto const& v10 = vertex(quad_cell.x0, quad_cell.y1);
+        auto const& v11 = vertex(quad_cell.x1, quad_cell.y1);
+
+        vertex(         mx, quad_cell.y0) =
+            (v00 + v01).normalized();
+        vertex(quad_cell.x0,          my) =
+            (v00 + v10).normalized();
+        vertex(mx, my) =
+            (v00 + v01 + v10 + v11).normalized();
+        vertex(quad_cell.x1,          my) =
+            (v01 + v11).normalized();
+        vertex(         mx, quad_cell.y1) =
+            (v10 + v11).normalized();
+
+        if(quad_cell.x0 + 1 < mx) {
+            stack.emplace_back(QuadCell { mx, quad_cell.x1, my, quad_cell.y1 });
+            stack.emplace_back(QuadCell { quad_cell.x0, mx, my, quad_cell.y1 });
+            stack.emplace_back(QuadCell { mx, quad_cell.x1, quad_cell.y0, my });
+            stack.emplace_back(QuadCell { quad_cell.x0, mx, quad_cell.y0, my });
+        }
+    }
+
+    for (Index index = 0; index < normals.size(); index += 1) {
+        positions[index] = normals[index];
+    }
+
+    int x_offset = (
+        m_corners[0][0] < m_corners[1][0] ||
+        m_corners[0][1] < m_corners[1][1] ||
+        m_corners[0][2] < m_corners[1][2]
+    )? -1: 1;
+    int y_offset = (
+        m_corners[0][0] < m_corners[2][0] ||
+        m_corners[0][1] < m_corners[2][1] ||
+        m_corners[0][2] < m_corners[2][2]
+    )? -1: 1;
+    for(Index y = 0; y < side_vert_count; y += 1) {
+        for(Index x = 0; x < side_vert_count; x += 1) {
+            Index x2 = x + (x & 0x01) * x_offset;
+            Index y2 = y + (y & 0x01) * y_offset;
+
+            positions2[index(x, y)] = positions[index(x2, y2)];
+        }
+    }
+
+    auto triangleIndex = 0;
+    bool flip = false; // (x_offset > 0) ^ (y_offset > 0);
+    for(Index y = 0; y < side_edge_count; y += 1) {
+        for(Index x = 0; x < side_edge_count; x += 1) {
+            const auto i00 = index_offset + index(x, y);
+            const auto i01 = i00 + 1;
+            const auto i10 = i00 + side_vert_count;
+            const auto i11 = i10 + 1;
+
+            if (flip) {
+                triangles[triangleIndex++] = Triangle { i00, i01, i11 };
+                triangles[triangleIndex++] = Triangle { i00, i11, i10 };
+            }
+            else {
+                triangles[triangleIndex++] = Triangle { i00, i01, i10 };
+                triangles[triangleIndex++] = Triangle { i10, i01, i11 };
+            }
+        }
+    }
+}
+
+Real Cell::height_factor(Vector3 corners[CornerCount]) {
+    Vector3 c = (corners[0] + corners[1] + corners[2] + corners[3]).normalized();
+    return Real(1) / corners[0].dot(c);
+}
+
+
+
+Planet::Planet()
+    : m_cells {
+        {
+            Vector3(-1.0, -1.0, -1.0).normalized(),
+            Vector3( 1.0, -1.0, -1.0).normalized(),
+            Vector3(-1.0,  1.0, -1.0).normalized(),
+            Vector3( 1.0,  1.0, -1.0).normalized(),
+        },
+        {
+            Vector3( 1.0, -1.0, -1.0).normalized(),
+            Vector3( 1.0, -1.0,  1.0).normalized(),
+            Vector3( 1.0,  1.0, -1.0).normalized(),
+            Vector3( 1.0,  1.0,  1.0).normalized(),
+        },
+        {
+            Vector3( 1.0, -1.0,  1.0).normalized(),
+            Vector3(-1.0, -1.0,  1.0).normalized(),
+            Vector3( 1.0,  1.0,  1.0).normalized(),
+            Vector3(-1.0,  1.0,  1.0).normalized(),
+        },
+        {
+            Vector3(-1.0, -1.0,  1.0).normalized(),
+            Vector3(-1.0, -1.0, -1.0).normalized(),
+            Vector3(-1.0,  1.0,  1.0).normalized(),
+            Vector3(-1.0,  1.0, -1.0).normalized(),
+        },
+        {
+            Vector3(-1.0, -1.0,  1.0).normalized(),
+            Vector3( 1.0, -1.0,  1.0).normalized(),
+            Vector3(-1.0, -1.0, -1.0).normalized(),
+            Vector3( 1.0, -1.0, -1.0).normalized(),
+        },
+        {
+            Vector3(-1.0,  1.0, -1.0).normalized(),
+            Vector3( 1.0,  1.0, -1.0).normalized(),
+            Vector3(-1.0,  1.0,  1.0).normalized(),
+            Vector3( 1.0,  1.0,  1.0).normalized(),
+        },
+    }
+{}
+
+void Planet::build_mesh(
+    Vector3AV positions, Vector3AV positions2, Vector3AV normals, TriangleAV triangles,
+    uint32_t subdiv_count, Index index_offset
+) const {
+    auto const vertex_count = Cell::vertex_count(subdiv_count);
+    auto const index_count = Cell::triangle_count(subdiv_count);
+
+    for(Index cell_index = 0; cell_index < CellCount; cell_index += 1) {
+        auto sub_positions = positions.slice(
+            cell_index * vertex_count, vertex_count
+        );
+        auto sub_positions2 = positions2.slice(
+            cell_index * vertex_count, vertex_count
+        );
+        auto sub_normals = normals.slice(
+            cell_index * vertex_count, vertex_count
+        );
+        auto sub_triangles = triangles.slice(
+            cell_index * index_count, index_count
+        );
+        cell(cell_index).build_mesh(
+            sub_positions,
+            sub_positions2,
+            sub_normals,
+            sub_triangles,
+            subdiv_count,
+            index_offset + cell_index * vertex_count
+        );
+    }
+}

src/Planet.h

@@ -0,0 +1,92 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/math.h>
+#include <core/ArrayView.h>
+
+#include <memory>
+#include <cassert>
+
+
+class Cell;
+using CellUP = std::unique_ptr<Cell>;
+
+
+struct Vertex {
+    Vector3 position;
+    Vector3 position2;
+    Vector3 normal;
+    Vector3 color;
+};
+
+
+class Cell {
+public:
+    static constexpr uint32_t CornerCount = 4;
+    static constexpr uint32_t CellCount = 4;
+
+public:
+    Cell(
+        const Vector3& corner00,
+        const Vector3& corner01,
+        const Vector3& corner10,
+        const Vector3& corner11
+    );
+    Cell(const Cell&) = delete;
+    Cell(Cell&&) = default;
+    ~Cell() = default;
+
+    Cell& operator=(const Cell&) = delete;
+    Cell& operator=(Cell&&) = default;
+
+    Cell& cell(uint32_t cell_index);
+
+    static size_t vertex_count(uint32_t subdiv_count);
+    static size_t triangle_count(uint32_t subdiv_count);
+
+    void build_mesh(
+        Vector3AV positions, Vector3AV positions2, Vector3AV normals, TriangleAV triangles,
+        uint32_t subdiv_count=4, Index index_offset=0
+    ) const;
+
+private:
+    static Real height_factor(Vector3 corners[CornerCount]);
+
+private:
+    Vector3 m_corners[CornerCount];
+    Real m_height_factor;
+    CellUP m_cells[CellCount];
+};
+
+
+class Planet {
+public:
+    static constexpr uint32_t CellCount = 6;
+
+public:
+    Planet();
+    Planet(const Planet&) = delete;
+    Planet(Planet&&) = default;
+    ~Planet() = default;
+
+    Planet& operator=(const Planet&) = delete;
+    Planet& operator=(Planet&&) = default;
+
+    inline const Cell& cell(uint32_t cell_index) const {
+        assert(cell_index < CellCount);
+        return m_cells[cell_index];
+    }
+
+    inline Cell& cell(uint32_t cell_index) {
+        assert(cell_index < CellCount);
+        return m_cells[cell_index];
+    }
+
+    void build_mesh(
+        Vector3AV positions, Vector3AV positions2, Vector3AV normals, TriangleAV triangles,
+        uint32_t subdiv_count=4, Index index_offset=0
+    ) const;
+
+private:
+    Cell m_cells[CellCount];
+};

src/Renderer.cpp

@@ -0,0 +1,825 @@
+// Copyright 2022 Simon Boyé
+#include <Renderer.h>
+
+#include <Planet.h>
+
+#include <vk/ShaderModule.h>
+
+#include <core/utils.h>
+#include <core/Logger.h>
+
+#include <SDL2/SDL_vulkan.h>
+
+#include <Eigen/Geometry>
+
+#include <cassert>
+#include <stdexcept>
+#include <array>
+#include <vector>
+#include <algorithm>
+#include <cstring>
+
+
+VkVertexInputBindingDescription vertex_binding_description() {
+    return {
+        .binding = 0,
+        .stride = sizeof(Vertex),
+        .inputRate = VK_VERTEX_INPUT_RATE_VERTEX,
+    };
+}
+
+std::array<VkVertexInputAttributeDescription, 4> vertex_attributes_description() {
+    return {
+        VkVertexInputAttributeDescription {
+            .location = 0,
+            .binding = 0,
+            .format = VK_FORMAT_R32G32B32_SFLOAT,
+            .offset = offsetof(Vertex, position),
+        },
+        VkVertexInputAttributeDescription {
+            .location = 1,
+            .binding = 0,
+            .format = VK_FORMAT_R32G32B32_SFLOAT,
+            .offset = offsetof(Vertex, position2),
+        },
+        VkVertexInputAttributeDescription {
+            .location = 2,
+            .binding = 0,
+            .format = VK_FORMAT_R32G32B32_SFLOAT,
+            .offset = offsetof(Vertex, normal),
+        },
+        {
+            .location = 3,
+            .binding = 0,
+            .format = VK_FORMAT_R32G32B32_SFLOAT,
+            .offset = offsetof(Vertex, color),
+        },
+    };
+}
+
+
+std::vector<Vertex> vertices = {
+    {{-1.0f, -1.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {1.0f, 0.0f, 0.0f}},
+    {{ 1.0f, -1.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {1.0f, 0.0f, 0.0f}},
+    {{-1.0f,  1.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {1.0f, 0.0f, 0.0f}},
+    {{ 1.0f,  1.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {1.0f, 0.0f, 0.0f}},
+
+    {{0.0f, -1.0f, -1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 1.0f, 0.0f}},
+    {{0.0f, -1.0f,  1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 1.0f, 0.0f}},
+    {{0.0f,  1.0f, -1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 1.0f, 0.0f}},
+    {{0.0f,  1.0f,  1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 1.0f, 0.0f}},
+
+    {{-1.0f, 0.0f, -1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+    {{ 1.0f, 0.0f, -1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+    {{-1.0f, 0.0f,  1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+    {{ 1.0f, 0.0f,  1.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -1.0f}, {0.0f, 0.0f, 1.0f}},
+};
+
+std::vector<uint32_t> indices = {
+    0, 1, 2,
+    2, 1, 3,
+
+    4, 5, 6,
+    6, 5, 7,
+
+    8, 9, 10,
+    10, 9, 11,
+};
+
+struct Uniforms {
+    alignas(16) Eigen::Matrix4f scene_from_model;
+    alignas(16) Eigen::Matrix4f projection_from_scene;
+    alignas(8) Eigen::Vector2f half_screen_size;
+    alignas(4) float lod;
+};
+
+
+Renderer::Renderer() {
+    m_swapchain.register_creation_callback(
+        std::bind(&Renderer::create_swapchain_objects, this));
+
+    // auto const subdiv_count = 4;
+
+    // vertices.resize(6 * Cell::vertex_count(subdiv_count));
+    // indices.resize(6 * 3 * Cell::triangle_count(subdiv_count));
+
+    // Vector3AV positions(
+    //     vertices.size(), vertices.data(),
+    //     sizeof(Vertex), offsetof(Vertex, position)
+    // );
+
+    // Vector3AV positions2(
+    //     vertices.size(), vertices.data(),
+    //     sizeof(Vertex), offsetof(Vertex, position2)
+    // );
+
+    // Vector3AV normals(
+    //     vertices.size(), vertices.data(),
+    //     sizeof(Vertex), offsetof(Vertex, normal)
+    // );
+
+    // Vector3AV colors(
+    //     vertices.size(), vertices.data(),
+    //     sizeof(Vertex), offsetof(Vertex, color)
+    // );
+
+    // TriangleAV triangles(
+    //     indices.size() / 3,
+    //     indices.data()
+    // );
+
+    // Planet planet;
+    // planet.build_mesh(positions, positions2, normals, triangles, subdiv_count);
+
+    // for (size_t vertex_index = 0; vertex_index < vertices.size(); vertex_index += 1) {
+    //     colors[vertex_index] =
+    //         positions[vertex_index] / 2.0f + Vector3::Constant(0.5f);
+    // }
+
+    // for(size_t vi = 0; vi < vertices.size(); vi += 1)
+    //     logger.debug() << "v" << vi << ": "
+    //         << vertices[vi].position.transpose();
+    // for(size_t ii = 0; 3 * ii < indices.size(); ii += 1)
+    //     logger.debug() << "i" << ii << ": "
+    //         << indices[3 * ii + 0] << ", "
+    //         << indices[3 * ii + 1] << ", "
+    //         << indices[3 * ii + 2];
+    // abort();
+}
+
+Renderer::~Renderer() {
+    if(m_context)
+        vkDeviceWaitIdle(m_context.device());
+}
+
+
+void Renderer::initialize(SDL_Window* window) {
+    auto const context_settings = vk::ContextSettings()
+#if defined(VKEXPE_ENABLE_VALIDATION) || !defined(NDEBUG)
+        .with_debug(true)
+#endif
+        .with_queue(GRAPHIC_QUEUE, VK_QUEUE_GRAPHICS_BIT)
+        .with_window(window);
+    m_context.initialize(context_settings);
+
+    create_command_pool();
+
+    create_descriptor_set_layout();
+    create_pipeline_layout();
+    create_render_pass();
+
+    // m_uniform_buffer_memory is allocated when uniform buffer is first created.
+
+    create_vertex_buffer();
+    create_index_buffer();
+
+    auto const swapchain_settings = vk::SwapchainSettings(&m_context)
+        .with_queue(m_context.queue_family(GRAPHIC_QUEUE));
+    m_swapchain.initialize(swapchain_settings);
+}
+
+
+void Renderer::set_camera(const Camera& camera) {
+    m_camera = camera;
+}
+
+
+void Renderer::draw_frame() {
+    m_swapchain.begin_frame();
+    const auto image_index = m_swapchain.current_image_index();
+    auto& image_states = m_image_states[image_index];
+
+    m_camera.update_aspect_ratio(Real(m_swapchain.extent().width) / Real(m_swapchain.extent().height));
+    const Matrix4 view = m_camera.view_matrix();
+    const Matrix4 proj = m_camera.projection_matrix();
+
+    Transform model = Transform::Identity();
+
+    const Uniforms uniforms = {
+        .scene_from_model = model.matrix(),
+        .projection_from_scene = proj * view,
+        .half_screen_size = {
+            0.5 * m_swapchain.extent().width,
+            0.5 * m_swapchain.extent().height,
+        },
+        // .lod = std::cos(alpha) * 0.5f + 0.5f,
+    };
+
+    void* uniform_buffer = m_uniform_buffer_memory.map(
+        m_context,
+        image_states.m_uniform_buffer_offset,
+        sizeof(Uniforms)
+    );
+    std::memcpy(uniform_buffer, &uniforms, sizeof(Uniforms));
+    m_uniform_buffer_memory.unmap(m_context);
+
+    std::vector<VkDrawIndexedIndirectCommand> draw_commands {
+        {
+            .indexCount = uint32_t(indices.size()),
+            .instanceCount = 1,
+        },
+    };
+    Byte* draw_buffer = image_states.m_draw_buffer.memory().map(
+        m_context,
+        0,
+        DrawBufferOffset + 1 * sizeof(VkDrawIndexedIndirectCommand)
+    );
+    *reinterpret_cast<uint32_t*>(draw_buffer) = uint32_t(draw_commands.size());
+    std::memcpy(
+        draw_buffer + DrawBufferOffset,
+        draw_commands.data(),
+        draw_commands.size() * sizeof(VkDrawIndexedIndirectCommand)
+    );
+    image_states.m_draw_buffer.memory().unmap(m_context);
+
+    VkSemaphore wait_semaphores[] = {
+        m_swapchain.ready_to_render(),
+    };
+    VkSemaphore done_semaphores[] = {
+        image_states.m_render_done,
+    };
+    VkPipelineStageFlags stages[] = {
+        VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+    };
+    VkCommandBuffer command_buffers[] = {
+        image_states.m_command_buffer,
+    };
+    VkSubmitInfo submit_info {
+        .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
+        .waitSemaphoreCount = 1,
+        .pWaitSemaphores = wait_semaphores,
+        .pWaitDstStageMask = stages,
+        .commandBufferCount = 1,
+        .pCommandBuffers = command_buffers,
+        .signalSemaphoreCount = 1,
+        .pSignalSemaphores = done_semaphores,
+    };
+
+    if(vkQueueSubmit(
+        m_context.queue(GRAPHIC_QUEUE),
+        1, &submit_info,
+        m_swapchain.render_done()
+    ))
+        throw std::runtime_error("failed to submit draw command buffer");
+
+    m_swapchain.swap_buffers(done_semaphores);
+}
+
+void Renderer::invalidate_swapchain() {
+    m_swapchain.invalidate();
+}
+
+
+void Renderer::create_swapchain_objects() {
+    m_image_states.clear();
+    m_swapchain_states.~SwapchainStates();
+
+    new(&m_swapchain_states) SwapchainStates();
+    initialize_swapchain_states();
+
+    m_image_states.resize(m_swapchain.image_count());
+    for(size_t image_index = 0; image_index < m_image_states.size(); image_index += 1)
+        initialize_image_states(image_index);
+}
+
+
+void Renderer::create_command_pool() {
+    m_command_pool = vk::CommandPool(
+        m_context,
+        m_context.queue_family(GRAPHIC_QUEUE)
+    );
+}
+
+
+void Renderer::create_descriptor_set_layout() {
+    VkDescriptorSetLayoutBinding binding[] {
+        {
+            .binding = 0,
+            .descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
+            .descriptorCount = 1,
+            .stageFlags = VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_GEOMETRY_BIT,
+        }
+    };
+    m_descriptor_set_layout = vk::DescriptorSetLayout(m_context, binding);
+}
+
+void Renderer::create_pipeline_layout() {
+    VkDescriptorSetLayout set_layouts[] {
+        m_descriptor_set_layout,
+    };
+    m_pipeline_layout = vk::PipelineLayout(m_context, set_layouts);
+}
+
+void Renderer::create_render_pass() {
+    VkAttachmentDescription attachments[] {
+        {
+            .format = m_context.surface_format().format,
+            .samples = VK_SAMPLE_COUNT_1_BIT,
+            .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
+            .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
+            .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
+            .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
+            .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
+            .finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
+        },
+        {
+            .format = VK_FORMAT_X8_D24_UNORM_PACK32,
+            .samples = VK_SAMPLE_COUNT_1_BIT,
+            .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
+            .storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
+            .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
+            .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
+            .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
+            .finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+        },
+    };
+
+    VkAttachmentReference color_attachment_ref {
+        .attachment = 0,
+        .layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
+    };
+    VkAttachmentReference depth_attachment_ref {
+        .attachment = 1,
+        .layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+    };
+
+    VkSubpassDescription subpass {
+        .pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
+        .colorAttachmentCount = 1,
+        .pColorAttachments = &color_attachment_ref,
+        .pDepthStencilAttachment = &depth_attachment_ref,
+    };
+
+    VkSubpassDependency subpass_dep = {
+        .srcSubpass = VK_SUBPASS_EXTERNAL,
+        .dstSubpass = 0,
+        .srcStageMask =
+            VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT |
+            VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+        .dstStageMask =
+            VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT |
+            VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
+        .srcAccessMask = 0,
+        .dstAccessMask =
+            VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT |
+            VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
+    };
+
+    VkRenderPassCreateInfo render_pass_info {
+        .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
+        .attachmentCount = uint32_t(std::extent_v<typeof(attachments)>),
+        .pAttachments = attachments,
+        .subpassCount = 1,
+        .pSubpasses = &subpass,
+        .dependencyCount = 1,
+        .pDependencies = &subpass_dep,
+    };
+
+    m_render_pass = vk::RenderPass(m_context, render_pass_info);
+}
+
+
+void Renderer::create_vertex_buffer() {
+    VkDeviceSize size = sizeof(vertices[0]) * vertices.size();
+    m_vertex_buffer = vk::Buffer(
+        m_context,
+        size,
+        VK_BUFFER_USAGE_VERTEX_BUFFER_BIT
+        | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
+        VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
+    );
+    m_vertex_buffer.upload(size, vertices.data(), m_context.queue_family(GRAPHIC_QUEUE));
+}
+
+void Renderer::create_index_buffer() {
+    VkDeviceSize size = sizeof(indices[0]) * indices.size();
+    m_index_buffer = vk::Buffer(
+        m_context,
+        size,
+        VK_BUFFER_USAGE_INDEX_BUFFER_BIT
+        | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
+        VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
+    );
+    m_index_buffer.upload(size, indices.data(), m_context.queue_family(GRAPHIC_QUEUE));
+}
+
+
+void Renderer::initialize_swapchain_states() {
+    create_descriptor_pool();
+    create_graphic_pipeline();
+}
+
+
+void Renderer::create_descriptor_pool() {
+    VkDescriptorPoolSize pool_sizes[] {
+        {
+            .type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
+            .descriptorCount = uint32_t(m_swapchain.image_count()),
+        }
+    };
+
+    m_swapchain_states.m_descriptor_pool = vk::DescriptorPool(
+        m_context,
+        uint32_t(m_swapchain.image_count()),
+        pool_sizes
+    );
+}
+
+void Renderer::create_graphic_pipeline() {
+    auto vertex_shader_module = vk::ShaderModule(m_context, "shaders/shader.vert.spv");
+    auto geometry_shader_module = vk::ShaderModule(m_context, "shaders/shader.geom.spv");
+    auto fragment_shader_module = vk::ShaderModule(m_context, "shaders/shader.frag.spv");
+
+    VkPipelineShaderStageCreateInfo shader_stage_infos[] = {
+        {
+            .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
+            .stage = VK_SHADER_STAGE_VERTEX_BIT,
+            .module = vertex_shader_module,
+            .pName = "main",
+        },
+        {
+            .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
+            .stage = VK_SHADER_STAGE_GEOMETRY_BIT,
+            .module = geometry_shader_module,
+            .pName = "main",
+        },
+        {
+            .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
+            .stage = VK_SHADER_STAGE_FRAGMENT_BIT,
+            .module = fragment_shader_module,
+            .pName = "main",
+        },
+    };
+
+    const VkVertexInputBindingDescription vertex_bindings[] = {
+        vertex_binding_description(),
+    };
+    const auto vertex_attributes = vertex_attributes_description();
+
+    VkPipelineVertexInputStateCreateInfo vertex_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
+        .vertexBindingDescriptionCount = 1,
+        .pVertexBindingDescriptions = vertex_bindings,
+        .vertexAttributeDescriptionCount = uint32_t(vertex_attributes.size()),
+        .pVertexAttributeDescriptions = vertex_attributes.data(),
+    };
+
+    VkPipelineInputAssemblyStateCreateInfo assembly_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
+        .topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
+        .primitiveRestartEnable = VK_FALSE,
+    };
+
+    VkViewport viewport {
+        .x = 0.0f,
+        .y = 0.0f,
+        .width = float(m_swapchain.extent().width),
+        .height = float(m_swapchain.extent().height),
+        .minDepth = 0.0f,
+        .maxDepth = 1.0f,
+    };
+
+    VkRect2D scissor = {
+        .offset = { 0, 0 },
+        .extent = m_swapchain.extent(),
+    };
+
+    VkPipelineViewportStateCreateInfo viewport_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
+        .viewportCount = 1,
+        .pViewports = &viewport,
+        .scissorCount = 1,
+        .pScissors = &scissor,
+    };
+
+    VkPipelineRasterizationStateCreateInfo rasterization_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
+        .depthClampEnable = VK_FALSE,
+        .rasterizerDiscardEnable = VK_FALSE,
+        .polygonMode = VK_POLYGON_MODE_FILL,
+        .cullMode = VK_CULL_MODE_NONE,
+        // .cullMode = VK_CULL_MODE_BACK_BIT,
+        .frontFace = VK_FRONT_FACE_CLOCKWISE,
+        .depthBiasEnable = VK_FALSE,
+        .depthBiasConstantFactor = 0.0f,
+        .depthBiasClamp = 0.0f,
+        .depthBiasSlopeFactor = 0.0f,
+        .lineWidth = 1.0f,
+    };
+
+    VkPipelineMultisampleStateCreateInfo multisample_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
+        .rasterizationSamples = VK_SAMPLE_COUNT_1_BIT,
+        .sampleShadingEnable = VK_FALSE,
+        .minSampleShading = 1.0f,
+        .pSampleMask = nullptr,
+        .alphaToCoverageEnable = VK_FALSE,
+        .alphaToOneEnable = VK_FALSE,
+    };
+
+    VkPipelineDepthStencilStateCreateInfo depth_stencil_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,
+        .depthTestEnable = VK_TRUE,
+        .depthWriteEnable = VK_TRUE,
+        .depthCompareOp = VK_COMPARE_OP_LESS,
+    };
+
+    VkPipelineColorBlendAttachmentState color_blend_attachment {
+        .blendEnable = VK_FALSE,
+        .srcColorBlendFactor = VK_BLEND_FACTOR_ONE,
+        .dstColorBlendFactor = VK_BLEND_FACTOR_ZERO,
+        .colorBlendOp = VK_BLEND_OP_ADD,
+        .srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
+        .dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO,
+        .alphaBlendOp = VK_BLEND_OP_ADD,
+        .colorWriteMask =
+            VK_COLOR_COMPONENT_R_BIT |
+            VK_COLOR_COMPONENT_G_BIT |
+            VK_COLOR_COMPONENT_B_BIT |
+            VK_COLOR_COMPONENT_A_BIT,
+    };
+
+    VkPipelineColorBlendStateCreateInfo color_blend_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
+        .logicOpEnable = VK_FALSE,
+        .logicOp = VK_LOGIC_OP_COPY,
+        .attachmentCount = 1,
+        .pAttachments = &color_blend_attachment,
+        .blendConstants = { 0.0f, 0.0f, 0.0f, 0.0f },
+    };
+
+    VkGraphicsPipelineCreateInfo pipeline_info {
+        .sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
+        .stageCount = 3,
+        .pStages = shader_stage_infos,
+        .pVertexInputState = &vertex_info,
+        .pInputAssemblyState = &assembly_info,
+        .pViewportState = &viewport_info,
+        .pRasterizationState = &rasterization_info,
+        .pMultisampleState = &multisample_info,
+        .pDepthStencilState = &depth_stencil_info,
+        .pColorBlendState = &color_blend_info,
+        .pDynamicState = nullptr,
+        .layout = m_pipeline_layout,
+        .renderPass = m_render_pass,
+        .subpass = 0,
+        .basePipelineHandle = VK_NULL_HANDLE,
+        .basePipelineIndex = -1,
+    };
+
+    m_swapchain_states.m_pipeline = vk::Pipeline(m_context, pipeline_info);
+}
+
+
+void Renderer::initialize_image_states(size_t image_index) {
+    auto& image_states = m_image_states[image_index];
+    image_states.m_image_index = image_index;
+
+    create_depth_buffer(image_states);
+    create_framebuffer(image_states);
+
+    create_uniform_buffer(image_states);
+    create_descriptor_set(image_states);
+
+    create_draw_buffer(image_states);
+
+    create_command_buffer(image_states);
+
+    image_states.m_render_done = vk::Semaphore(m_context);
+}
+
+
+void Renderer::create_depth_buffer(ImageStates& image_states)
+{
+    image_states.m_depth_buffer = vk::Image(
+        m_context,
+        VkImageCreateInfo {
+            .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
+            .imageType = VK_IMAGE_TYPE_2D,
+            .format = VK_FORMAT_X8_D24_UNORM_PACK32,
+            .extent = {
+                m_swapchain.extent().width,
+                m_swapchain.extent().height,
+                1
+            },
+            .mipLevels = 1,
+            .arrayLayers = 1,
+            .samples = VK_SAMPLE_COUNT_1_BIT,
+            .tiling = VK_IMAGE_TILING_OPTIMAL,
+            .usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,
+            .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
+            .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
+        },
+        VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT
+    );
+
+    image_states.m_depth_buffer_view = vk::ImageView(
+        m_context,
+        VkImageViewCreateInfo {
+            .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
+            .image = image_states.m_depth_buffer,
+            .viewType = VK_IMAGE_VIEW_TYPE_2D,
+            .format = VK_FORMAT_X8_D24_UNORM_PACK32,
+            .components = {
+                .r = VK_COMPONENT_SWIZZLE_R,
+                .g = VK_COMPONENT_SWIZZLE_G,
+                .b = VK_COMPONENT_SWIZZLE_B,
+                .a = VK_COMPONENT_SWIZZLE_A,
+            },
+            .subresourceRange = {
+                .aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT,
+                .baseMipLevel = 0,
+                .levelCount = 1,
+                .baseArrayLayer = 0,
+                .layerCount = 1,
+            }
+        }
+    );
+}
+
+void Renderer::create_framebuffer(ImageStates& image_states) {
+    VkImageView views[] {
+        m_swapchain.image_view(image_states.m_image_index),
+        image_states.m_depth_buffer_view,
+    };
+    image_states.m_framebuffer = vk::Framebuffer(
+        m_context,
+        m_render_pass,
+        views,
+        m_swapchain.extent()
+    );
+}
+
+
+void Renderer::create_uniform_buffer(ImageStates& image_states) {
+    const auto image_index = image_states.m_image_index;
+
+    image_states.m_uniform_buffer = vk::Buffer(
+        m_context,
+        sizeof(Uniforms),
+        VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT
+    );
+    auto& buffer = image_states.m_uniform_buffer;
+
+    if(!m_uniform_buffer_memory) {
+        VkMemoryRequirements memory_requirements =
+            buffer.memory_requirements();
+
+        m_uniform_buffer_memory = m_context.allocator().allocate(
+            memory_requirements.size * m_swapchain.image_count(),
+            memory_requirements.memoryTypeBits,
+            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
+            | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
+        );
+
+        for (size_t index = 0; index < m_swapchain.image_count(); index += 1)
+            m_image_states[index].m_uniform_buffer_offset =
+                index * memory_requirements.size;
+    }
+
+    buffer.bind_memory(
+        m_uniform_buffer_memory,
+        image_states.m_uniform_buffer_offset
+    );
+}
+
+void Renderer::create_descriptor_set(ImageStates& image_states) {
+    image_states.m_descriptor_set = vk::DescriptorSet(
+        m_context,
+        m_swapchain_states.m_descriptor_pool,
+        m_descriptor_set_layout
+    );
+
+    VkDescriptorBufferInfo buffer_info {
+        .buffer = image_states.m_uniform_buffer,
+        .offset = 0,
+        .range = sizeof(Uniforms),
+    };
+    VkWriteDescriptorSet write {
+        .sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
+        .dstSet = image_states.m_descriptor_set,
+        .dstBinding = 0,
+        .dstArrayElement = 0,
+        .descriptorCount = 1,
+        .descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
+        .pBufferInfo = &buffer_info,
+    };
+    vkUpdateDescriptorSets(
+        m_context.device(),
+        1, &write,
+        0, nullptr
+    );
+}
+
+void Renderer::create_draw_buffer(ImageStates& image_states) {
+    image_states.m_draw_buffer = vk::Buffer(
+        m_context,
+        DrawBufferOffset + MaxDrawTileCount * sizeof(VkDrawIndexedIndirectCommand),
+        VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT,
+        VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
+        | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
+    );
+}
+
+void Renderer::create_command_buffer(ImageStates& image_states) {
+    image_states.m_command_buffer = vk::CommandBuffer(m_context, m_command_pool);
+
+    VkCommandBufferBeginInfo begin_info {
+        .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
+        .flags = 0,
+        .pInheritanceInfo = nullptr,
+    };
+
+    logger.debug() << "record command buffer " << image_states.m_image_index
+        << " (" << image_states.m_command_buffer << ")";
+
+    if(vkBeginCommandBuffer(
+        image_states.m_command_buffer,
+        &begin_info
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to begin command buffer");
+
+    VkClearValue clear_values[] = {
+        {
+            .color = {
+                .float32 = { 0.0f, 0.0f, 0.0f, 1.0f }
+            }
+        },
+        {
+            .depthStencil = {
+                .depth = 1.0f,
+            }
+        },
+    };
+
+    VkRenderPassBeginInfo pass_info {
+        .sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
+        .renderPass = m_render_pass,
+        .framebuffer = image_states.m_framebuffer,
+        .renderArea = {
+            .offset = { 0, 0 },
+            .extent = m_swapchain.extent(),
+        },
+        .clearValueCount = uint32_t(std::extent_v<typeof(clear_values)>),
+        .pClearValues = clear_values,
+    };
+
+    vkCmdBeginRenderPass(
+        image_states.m_command_buffer,
+        &pass_info,
+        VK_SUBPASS_CONTENTS_INLINE
+    );
+
+    vkCmdBindPipeline(
+        image_states.m_command_buffer,
+        VK_PIPELINE_BIND_POINT_GRAPHICS,
+        m_swapchain_states.m_pipeline
+    );
+
+    VkBuffer vertex_buffers[] = {
+        m_vertex_buffer,
+    };
+    VkDeviceSize offsets[] = {
+        0,
+    };
+    vkCmdBindVertexBuffers(
+        image_states.m_command_buffer,
+        0,
+        1,
+        vertex_buffers,
+        offsets
+    );
+
+    vkCmdBindIndexBuffer(
+        image_states.m_command_buffer,
+        m_index_buffer,
+        0,
+        VK_INDEX_TYPE_UINT32
+    );
+
+    VkDescriptorSet descriptor_sets[] {
+        image_states.m_descriptor_set,
+    };
+    vkCmdBindDescriptorSets(
+        image_states.m_command_buffer,
+        VK_PIPELINE_BIND_POINT_GRAPHICS,
+        m_pipeline_layout,
+        0, 1, descriptor_sets,
+        0, nullptr
+    );
+
+    m_context.cmdDrawIndexedIndirectCount(
+        image_states.m_command_buffer,
+        image_states.m_draw_buffer,
+        DrawBufferOffset,
+        image_states.m_draw_buffer,
+        0,
+        MaxDrawTileCount,
+        sizeof(VkDrawIndexedIndirectCommand)
+    );
+
+    vkCmdEndRenderPass(image_states.m_command_buffer);
+
+    if(vkEndCommandBuffer(image_states.m_command_buffer) != VK_SUCCESS)
+        throw("failed to record command buffer");
+}

src/Renderer.h

@@ -0,0 +1,140 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <Camera.h>
+
+#include <vk/Swapchain.h>
+#include <vk/DescriptorSet.h>
+#include <vk/DescriptorPool.h>
+#include <vk/PipelineLayout.h>
+#include <vk/DescriptorSetLayout.h>
+#include <vk/Image.h>
+#include <vk/Buffer.h>
+#include <vk/Pipeline.h>
+#include <vk/Framebuffer.h>
+#include <vk/RenderPass.h>
+#include <vk/Semaphore.h>
+#include <vk/CommandBuffer.h>
+#include <vk/CommandPool.h>
+#include <vk/Context.h>
+
+#include <core/math.h>
+
+#include <SDL2/SDL.h>
+
+#include <vulkan/vulkan.h>
+
+#include <Eigen/Dense>
+
+#include <vector>
+#include <chrono>
+
+
+VkVertexInputBindingDescription vertex_binding_description();
+std::array<VkVertexInputAttributeDescription, 4> vertex_attributes_description();
+
+
+class Renderer {
+public:
+    enum QueueIndex {
+        GRAPHIC_QUEUE,
+    };
+
+    using Clock = std::chrono::high_resolution_clock;
+    using TimePoint = Clock::time_point;
+    using Duration = Clock::duration;
+    using SecondsD = std::chrono::duration<double>;
+
+public:
+    Renderer();
+    Renderer(const Renderer&) = delete;
+    ~Renderer();
+
+    Renderer& operator=(const Renderer&) = delete;
+
+    void initialize(SDL_Window* window);
+
+    void set_camera(const Camera& camera);
+
+    void draw_frame();
+    void invalidate_swapchain();
+
+private:
+    struct SwapchainStates;
+    struct ImageStates;
+
+private:
+    void create_swapchain_objects();
+
+    void create_command_pool();
+
+    void create_descriptor_set_layout();
+    void create_pipeline_layout();
+    void create_render_pass();
+
+    void create_vertex_buffer();
+    void create_index_buffer();
+
+    void initialize_swapchain_states();
+
+    void create_descriptor_pool();
+    void create_graphic_pipeline();
+
+    void initialize_image_states(size_t image_index);
+
+    void create_depth_buffer(ImageStates& image_states);
+    void create_framebuffer(ImageStates& image_states);
+
+    void create_uniform_buffer(ImageStates& image_states);
+    void create_descriptor_set(ImageStates& image_states);
+
+    void create_draw_buffer(ImageStates& image_states);
+
+    void create_command_buffer(ImageStates& image_states);
+
+private:
+    static constexpr uint32_t DrawBufferOffset = 4;
+    static constexpr uint32_t MaxDrawTileCount = 256;
+
+private:
+    vk::Context m_context;
+
+    vk::CommandPool m_command_pool;
+
+    vk::DescriptorSetLayout m_descriptor_set_layout;
+    vk::PipelineLayout m_pipeline_layout;
+    vk::RenderPass m_render_pass;
+
+    vk::Buffer m_vertex_buffer;
+    vk::Buffer m_index_buffer;
+
+    vk::MemoryBlock m_uniform_buffer_memory;
+
+    vk::Swapchain m_swapchain;
+
+    struct SwapchainStates {
+        vk::DescriptorPool m_descriptor_pool;
+        vk::Pipeline m_pipeline;
+    };
+    SwapchainStates m_swapchain_states;
+
+    struct ImageStates {
+        size_t m_image_index;
+
+        vk::Image m_depth_buffer;
+        vk::ImageView m_depth_buffer_view;
+        vk::Framebuffer m_framebuffer;
+
+        vk::Buffer m_uniform_buffer;
+        VkDeviceSize m_uniform_buffer_offset;
+        vk::DescriptorSet m_descriptor_set;
+
+        vk::Buffer m_draw_buffer;
+
+        vk::CommandBuffer m_command_buffer;
+        vk::Semaphore m_render_done;
+    };
+    std::vector<ImageStates> m_image_states;
+
+    Camera m_camera;
+};

src/Simplex.cpp

@@ -0,0 +1,142 @@
+// Copyright 2022 Simon Boyé
+
+#include <Simplex.h>
+
+
+Vector3 polyhedron_support(Vector3AV polyhedron, const Vector3& direction) {
+    assert(polyhedron.size() > 0);
+
+    Index best = 0;
+    Real best_dot = polyhedron[0].dot(direction);
+
+    for (Index index = 1; index < polyhedron.size(); index += 1) {
+        Real dot = polyhedron[index].dot(direction);
+        if (dot > best_dot) {
+            best = index;
+            best_dot = dot;
+        }
+    }
+
+    return polyhedron[best];
+}
+
+
+Simplex::Simplex() = default;
+Simplex::Simplex(const Vector3& point)
+    : m_points{ point, Vector3{}, Vector3{}, Vector3{} }
+    , m_point_count(1)
+{}
+
+
+Gjk::Gjk(Vector3AV polyhedron0, Vector3AV polyhedron1, const Vector3& direction)
+    : m_polyhedron0(polyhedron0)
+    , m_polyhedron1(polyhedron1)
+    , m_direction(direction)
+{}
+
+Gjk::~Gjk() = default;
+
+const Vector3& Gjk::direction() const {
+    return m_direction;
+}
+
+bool Gjk::operator()() {
+    while (true) {
+        m_simplex.push(support(m_direction));
+
+        if (m_simplex.last().dot(m_direction) < Real(0))
+            return false;
+
+        if (nextSimplex())
+            return true;
+    }
+}
+
+bool Gjk::nextSimplex() {
+    switch(m_simplex.point_count()) {
+        case 1: return nextFromPoint();
+        case 2: return nextFromLine();
+        case 3: return nextFromTriangle();
+        case 4: return nextFromTetrahedron();
+    }
+    return false;
+}
+
+bool Gjk::nextFromPoint() {
+    m_direction = -m_simplex.last();
+
+    return false;
+}
+
+bool Gjk::nextFromLine() {
+    Vector3 v01 = m_simplex.point(1) - m_simplex.point(0);
+    Vector3 v1o = -m_simplex.point(1);
+
+    m_direction = v01.cross(v1o).cross(v01);
+
+    return false;
+}
+
+bool Gjk::nextFromTriangle() {
+    Vector3 v20 = m_simplex.point(0) - m_simplex.point(2);
+    Vector3 v21 = m_simplex.point(1) - m_simplex.point(2);
+    Vector3 v2o = -m_simplex.point(2);
+
+    Vector3 n = v20.cross(v21);
+    Vector3 n0 = n.cross(v21);
+    Vector3 n1 = v20.cross(n);
+
+    if(n0.dot(v2o) > Real(0)) {
+        m_simplex.pop(0);
+        m_direction = n0;
+    }
+    else if(n1.dot(v2o) > Real(0)) {
+        m_simplex.pop(1);
+        m_direction = n1;
+    }
+    else if(n.dot(v2o) > Real(0)) {
+        m_direction = n;
+    }
+    else {
+        m_simplex.swap(0, 1);
+        m_direction = -n;
+    }
+
+    return false;
+}
+
+bool Gjk::nextFromTetrahedron() {
+    Vector3 v30 = m_simplex.point(0) - m_simplex.point(3);
+    Vector3 v31 = m_simplex.point(1) - m_simplex.point(3);
+    Vector3 v32 = m_simplex.point(2) - m_simplex.point(3);
+    Vector3 v3o = -m_simplex.point(3);
+
+    Vector3 n[3] = {
+        v31.cross(v32),
+        v32.cross(v30),
+        v30.cross(v31),
+    };
+
+    Real d[3] = {
+        n[0].dot(v3o),
+        n[1].dot(v3o),
+        n[2].dot(v3o),
+    };
+
+    Index best = (d[0] > d[1])? ((d[0] > d[2])? 0: 2):
+                                ((d[1] > d[2])? 1: 2);
+
+    if(d[best] <= Real(0))
+        return true;
+
+    m_simplex.pop(best);
+    m_direction = n[best];
+
+    return false;
+}
+
+Vector3 Gjk::support(const Vector3& direction) const
+{
+    return polyhedron_support(m_polyhedron0, direction)
+        - polyhedron_support(m_polyhedron1, -direction);
+}

src/Simplex.h

@@ -0,0 +1,77 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/math.h>
+#include <core/ArrayView.h>
+
+
+class Simplex {
+public:
+    Simplex();
+    Simplex(const Vector3& point);
+
+    inline Index point_count() const {
+        return m_point_count;
+    }
+
+    inline const Vector3& point(Index index) const {
+        assert(index < m_point_count);
+        return m_points[index];
+    }
+
+    inline const Vector3& last() const {
+        assert(m_point_count > 0);
+        return point(m_point_count - 1);
+    }
+
+    inline void push(const Vector3& point) {
+        assert(m_point_count < MaxPointCount);
+        m_points[m_point_count] = point;
+        m_point_count += 1;
+    }
+
+    inline void pop(Index index) {
+        assert(index < m_point_count);
+        for(Index i = index; i + 1 < m_point_count; i += 1)
+            m_points[i] = m_points[i + 1];
+        m_point_count -= 1;
+    }
+
+    inline void swap(Index index0, Index index1) {
+        using std::swap;
+        swap(m_points[index0], m_points[index1]);
+    }
+
+private:
+    static constexpr Index MaxPointCount = 4;
+
+private:
+    Vector3 m_points[MaxPointCount];
+    Index m_point_count = 0;
+};
+
+
+class Gjk {
+public:
+    Gjk(Vector3AV polyhedron0, Vector3AV polyhedron1, const Vector3& direction=Vector3::UnitX());
+    ~Gjk();
+
+    const Vector3& direction() const;
+
+    bool operator()();
+
+private:
+    bool nextSimplex();
+    bool nextFromPoint();
+    bool nextFromLine();
+    bool nextFromTriangle();
+    bool nextFromTetrahedron();
+
+    Vector3 support(const Vector3& direction) const;
+
+private:
+    Vector3AV m_polyhedron0;
+    Vector3AV m_polyhedron1;
+    Simplex m_simplex;
+    Vector3 m_direction;
+};

src/VkExpe.cpp

@@ -1,10 +1,12 @@
+// Copyright 2022 Simon Boyé
 #include <VkExpe.h>
 
-#include <utils.h>
+#include <core/utils.h>
-#include <Logger.h>
+#include <core/Logger.h>
 
 #include <stdexcept>
 #include <iostream>
+#include <chrono>
 
 
 void SdlWindowDeleter::operator()(SDL_Window* window) const {
@@ -13,6 +15,12 @@ void SdlWindowDeleter::operator()(SDL_Window* window) const {
 
 
 VkExpe::VkExpe(int argc, char** argv) {
+    m_camera.set_position(Vector3(0.0f, 0.0f, -3.0f));
+    m_camera.set_direction(Vector3::UnitZ());
+    m_camera.set_down(Vector3::UnitY());
+
+    m_camera.set_projection(M_PI / 3.0, 1.0);
+    m_camera.set_clip_distances(0.1, 10);
 }
 
 VkExpe::~VkExpe() {
@@ -25,7 +33,7 @@ void VkExpe::initialize() {
     auto const window = SDL_CreateWindow(
         "vk_expe",
         SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
-        800, 600,
+        1920, 1080,
         SDL_WINDOW_VULKAN
         | SDL_WINDOW_ALLOW_HIGHDPI
         | SDL_WINDOW_SHOWN
@@ -41,7 +49,7 @@ void VkExpe::initialize() {
 }
 
 void VkExpe::shutdown() {
-    m_vulkan.shutdown();
+    recreate_object(m_vulkan);
 
     m_window.reset();
 
@@ -60,9 +68,24 @@ void VkExpe::run() {
         m_running = false;
     });
 
-    SDL_Event event;
+    auto last_time = std::chrono::high_resolution_clock::now();
+
+    // SDL_Event event;
+    std::vector<SDL_Event> events;
+    events.reserve(128);
     while(m_running) {
-        while(SDL_PollEvent(&event)) {
+        SDL_PumpEvents();
+
+        int event_count = SDL_PeepEvents(nullptr, 0, SDL_PEEKEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT);
+        if(event_count < 0) {
+            logger.error() << SDL_GetError();
+            break;
+        }
+
+        events.resize(event_count);
+        SDL_PeepEvents(events.data(), event_count, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT);
+
+        for(const auto& event: events) {
             switch(event.type) {
             case SDL_QUIT:
                 m_running = false;
@@ -72,17 +95,91 @@ void VkExpe::run() {
                     m_running = false;
                 break;
             }
+            case SDL_MOUSEMOTION: {
+                m_mouse_offset += Vector2(
+                    event.motion.xrel,
+                    event.motion.yrel
+                );
+                break;
+            }
             case SDL_WINDOWEVENT: {
                 switch(event.window.event) {
                 case SDL_WINDOWEVENT_RESIZED: {
                     m_vulkan.invalidate_swapchain();
+                    break;
+                }
+                case SDL_WINDOWEVENT_FOCUS_GAINED: {
+                    SDL_SetRelativeMouseMode(SDL_TRUE);
+                    break;
+                }
+                case SDL_WINDOWEVENT_FOCUS_LOST: {
+                    SDL_SetRelativeMouseMode(SDL_FALSE);
+                    break;
                 }
                 }
+                break;
             }
             }
         }
 
+        const auto new_time = std::chrono::high_resolution_clock::now();
+        const auto elapsed = new_time - last_time;
+        last_time = new_time;
+
+        update(std::chrono::duration<double>(elapsed).count());
+
+        m_vulkan.set_camera(m_camera);
         m_vulkan.draw_frame();
-        // m_running = false;
+
+        m_mouse_offset = Vector2::Zero();
+    }
+}
+
+void VkExpe::update(double elapsed) {
+    int key_count = 0;
+    const auto keys = SDL_GetKeyboardState(&key_count);
+
+    const auto test_key = [key_count, keys](int scan_code) {
+        return scan_code < key_count && keys[scan_code];
+    };
+
+    if (!m_mouse_offset.isZero()) {
+        const Real x_sensi = 0.001;
+        const Real y_sensi = -0.001;
+
+        const Vector3 camera_z = m_camera.direction();
+        const Vector3 camera_y = m_camera.down();
+        const Vector3 camera_x = camera_y.cross(camera_z);
+        Vector3 axis =
+            x_sensi * m_mouse_offset[0] * camera_y +
+            y_sensi * m_mouse_offset[1] * camera_x;
+        Real rot_norm = axis.norm();
+        AngleAxis rot(rot_norm, axis / rot_norm);
+        m_camera.set_down(rot * camera_y);
+        m_camera.set_direction(rot * camera_z);
+    }
+
+    Vector3 walk_direction = Vector3::Zero();
+    if(test_key(SDL_SCANCODE_W))
+        walk_direction += Vector3::UnitZ();
+    if(test_key(SDL_SCANCODE_S))
+        walk_direction -= Vector3::UnitZ();
+    if(test_key(SDL_SCANCODE_A))
+        walk_direction -= Vector3::UnitX();
+    if(test_key(SDL_SCANCODE_D))
+        walk_direction += Vector3::UnitX();
+    if(test_key(SDL_SCANCODE_SPACE))
+        walk_direction -= Vector3::UnitY();
+    if(test_key(SDL_SCANCODE_LCTRL))
+        walk_direction += Vector3::UnitY();
+
+    if(!walk_direction.isZero()) {
+        walk_direction.normalize();
+        const Real base_velocity = 1;
+
+        const Matrix3 basis = m_camera.basis();
+        m_camera.set_position(
+            m_camera.position() + elapsed * base_velocity * (basis * walk_direction)
+        );
     }
 }

src/VkExpe.h

@@ -1,6 +1,10 @@
+// Copyright 2022 Simon Boyé
 #pragma once
 
-#include <VulkanTutorial.h>
+#include <Renderer.h>
+#include <Camera.h>
+
+#include <core/math.h>
 
 #include <SDL2/SDL.h>
 
@@ -26,8 +30,15 @@ public:
 
     void run();
 
+    void update(double elapsed);
+
 private:
-    VulkanTutorial m_vulkan;
+    Renderer m_vulkan;
+
+    Camera m_camera;
+
     WindowUP m_window;
     bool m_running = false;
+
+    Vector2 m_mouse_offset = Vector2::Zero();
 };

src/VulkanTutorial.cpp

@@ -1,560 +0,0 @@
-#include <VulkanTutorial.h>
-
-#include <utils.h>
-#include <Logger.h>
-
-#include <SDL2/SDL_vulkan.h>
-
-#include <cassert>
-#include <stdexcept>
-#include <array>
-#include <vector>
-#include <algorithm>
-#include <cstring>
-
-
-VkVertexInputBindingDescription Vertex::binding_description() {
-    return {
-        .binding = 0,
-        .stride = sizeof(Vertex),
-        .inputRate = VK_VERTEX_INPUT_RATE_VERTEX,
-    };
-}
-
-std::array<VkVertexInputAttributeDescription, 2> Vertex::attributes_description() {
-    return {
-        VkVertexInputAttributeDescription {
-            .location = 0,
-            .binding = 0,
-            .format = VK_FORMAT_R32G32_SFLOAT,
-            .offset = offsetof(Vertex, position),
-        },
-        {
-            .location = 1,
-            .binding = 0,
-            .format = VK_FORMAT_R32G32B32_SFLOAT,
-            .offset = offsetof(Vertex, color),
-        },
-    };
-}
-
-
-const std::vector<Vertex> vertices = {
-    {{0.0f, -0.5f}, {1.0f, 0.0f, 0.0f}},
-    {{0.5f, 0.5f}, {0.0f, 1.0f, 0.0f}},
-    {{-0.5f, 0.5f}, {0.0f, 0.0f, 1.0f}}
-};
-
-
-VulkanTutorial::VulkanTutorial() {
-    m_swapchain.register_creation_callback(
-        std::bind(&VulkanTutorial::create_swapchain_objects, this, std::placeholders::_1));
-    m_swapchain.register_destruction_callback(
-        std::bind(&VulkanTutorial::destroy_swapchain_objects, this));
-}
-
-VulkanTutorial::~VulkanTutorial() {
-    shutdown();
-}
-
-void VulkanTutorial::initialize(SDL_Window* window) {
-    auto const context_settings = Vulkan::ContextSettings()
-#if defined(VKEXPE_ENABLE_VALIDATION) || !defined(NDEBUG)
-        .with_debug(true)
-#endif
-        .with_queue(GRAPHIC_QUEUE, VK_QUEUE_GRAPHICS_BIT)
-        .with_window(window);
-    m_context.initialize(context_settings);
-
-    auto const swapchain_settings = Vulkan::SwapchainSettings(&m_context)
-        .with_queue(m_context.queue_family(GRAPHIC_QUEUE));
-    m_swapchain.initialize(swapchain_settings);
-
-    create_command_pool();
-    create_vertex_buffer();
-}
-
-void VulkanTutorial::shutdown() {
-    if(!m_context.instance())
-        return;
-
-    vkDeviceWaitIdle(m_context.device());
-
-    destroy_swapchain_objects();
-
-    m_context.free_memory(m_vertex_buffer_memory);
-    m_context.destroy_command_pool(m_command_pool);
-    m_context.destroy_buffer(m_vertex_buffer);
-    m_context.free_memory(m_vertex_buffer_memory);
-
-    for(VkSemaphore semaphore: m_render_done)
-        m_context.destroy_semaphore(semaphore);
-    m_render_done.clear();
-
-    m_swapchain.shutdown();
-    m_context.shutdown();
-}
-
-void VulkanTutorial::draw_frame() {
-    m_swapchain.begin_frame();
-    auto const image_index = m_swapchain.current_image_index();
-
-    VkSemaphore wait_semaphores[] = {
-        m_swapchain.ready_to_render(),
-    };
-    VkPipelineStageFlags stages[] = {
-        VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
-    };
-    VkSubmitInfo submit_info {
-        .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
-        .waitSemaphoreCount = 1,
-        .pWaitSemaphores = wait_semaphores,
-        .pWaitDstStageMask = stages,
-        .commandBufferCount = 1,
-        .pCommandBuffers = &m_command_buffers[image_index],
-        .signalSemaphoreCount = 1,
-        .pSignalSemaphores = &m_render_done[image_index],
-    };
-
-    if(vkQueueSubmit(
-        m_context.queue(GRAPHIC_QUEUE),
-        1, &submit_info,
-        m_swapchain.render_done()
-    ))
-        throw std::runtime_error("failed to submit draw command buffer");
-
-    m_swapchain.swap_buffers({1, &m_render_done[image_index]});
-}
-
-void VulkanTutorial::invalidate_swapchain() {
-    m_swapchain.invalidate();
-}
-
-void VulkanTutorial::create_swapchain_objects(uint32_t image_count) {
-    create_render_pass();
-    create_framebuffers();
-    create_graphic_pipeline();
-    create_command_buffers();
-
-    m_render_done.resize(m_swapchain.image_count());
-
-    VkSemaphoreCreateInfo semaphore_info {
-        .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
-    };
-
-    for(size_t index = 0; index < m_render_done.size(); index += 1) {
-        if(vkCreateSemaphore(
-            m_context.device(),
-            &semaphore_info,
-            nullptr,
-            &m_render_done[index]
-        ) != VK_SUCCESS)
-            throw std::runtime_error("failed to create semaphore");
-    }
-}
-
-void VulkanTutorial::destroy_swapchain_objects() {
-    if(m_command_pool == VK_NULL_HANDLE)
-        return;
-
-    vkFreeCommandBuffers(
-        m_context.device(),
-        m_command_pool,
-        uint32_t(m_command_buffers.size()),
-        m_command_buffers.data()
-    );
-    m_command_buffers.clear();
-
-    for(VkFramebuffer framebuffer: m_framebuffers)
-        m_context.destroy_framebuffer(framebuffer);
-    m_framebuffers.clear();
-
-    m_context.destroy_pipeline(m_pipeline);
-    m_context.destroy_pipeline_layout(m_pipeline_layout);
-    m_context.destroy_render_pass(m_render_pass);
-}
-
-void VulkanTutorial::create_render_pass() {
-    VkAttachmentDescription color_attachment {
-        .format = m_context.surface_format().format,
-        .samples = VK_SAMPLE_COUNT_1_BIT,
-        .loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR,
-        .storeOp = VK_ATTACHMENT_STORE_OP_STORE,
-        .stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE,
-        .stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE,
-        .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
-        .finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
-    };
-
-    VkAttachmentReference color_attachment_ref = {
-        .attachment = 0,
-        .layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
-    };
-
-    VkSubpassDescription subpass {
-        .pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
-        .colorAttachmentCount = 1,
-        .pColorAttachments = &color_attachment_ref,
-    };
-
-    VkSubpassDependency subpass_dep = {
-        .srcSubpass = VK_SUBPASS_EXTERNAL,
-        .dstSubpass = 0,
-        .srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
-        .dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
-        .srcAccessMask = 0,
-        .dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,
-    };
-
-    VkRenderPassCreateInfo render_pass_info {
-        .sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
-        .attachmentCount = 1,
-        .pAttachments = &color_attachment,
-        .subpassCount = 1,
-        .pSubpasses = &subpass,
-        .dependencyCount = 1,
-        .pDependencies = &subpass_dep,
-    };
-
-    if(vkCreateRenderPass(
-        m_context.device(),
-        &render_pass_info,
-        nullptr,
-        &m_render_pass
-    ) != VK_SUCCESS)
-        throw std::runtime_error("failed to create render pass");
-}
-
-void VulkanTutorial::create_graphic_pipeline() {
-    auto const vertex_shader_module =
-        m_context.create_shader_module_from_file("shaders/shader.vert.spv");
-    auto const vertex_shader_guard = make_guard([&]{
-        vkDestroyShaderModule(m_context.device(), vertex_shader_module, nullptr);
-    });
-
-    auto const fragment_shader_module =
-        m_context.create_shader_module_from_file("shaders/shader.frag.spv");
-    auto const fragment_shader_guard = make_guard([&]{
-        vkDestroyShaderModule(m_context.device(), fragment_shader_module, nullptr);
-    });
-
-    VkPipelineShaderStageCreateInfo shader_stage_infos[] = {
-        {
-            .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
-            .stage = VK_SHADER_STAGE_VERTEX_BIT,
-            .module = vertex_shader_module,
-            .pName = "main",
-        },
-        {
-            .sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,
-            .stage = VK_SHADER_STAGE_FRAGMENT_BIT,
-            .module = fragment_shader_module,
-            .pName = "main",
-        },
-    };
-
-    const VkVertexInputBindingDescription vertex_bindings[] = {
-        Vertex::binding_description(),
-    };
-    const auto vertex_attributes = Vertex::attributes_description();
-
-    VkPipelineVertexInputStateCreateInfo vertex_info {
-        .sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
-        .vertexBindingDescriptionCount = 1,
-        .pVertexBindingDescriptions = vertex_bindings,
-        .vertexAttributeDescriptionCount = uint32_t(vertex_attributes.size()),
-        .pVertexAttributeDescriptions = vertex_attributes.data(),
-    };
-
-    VkPipelineInputAssemblyStateCreateInfo assembly_info {
-        .sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
-        .topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
-        .primitiveRestartEnable = VK_FALSE,
-    };
-
-    VkViewport viewport {
-        .x = 0.0f,
-        .y = 0.0f,
-        .width = float(m_swapchain.extent().width),
-        .height = float(m_swapchain.extent().height),
-        .minDepth = 0.0f,
-        .maxDepth = 1.0f,
-    };
-
-    VkRect2D scissor = {
-        .offset = { 0, 0 },
-        .extent = m_swapchain.extent(),
-    };
-
-    VkPipelineViewportStateCreateInfo viewport_info {
-        .sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
-        .viewportCount = 1,
-        .pViewports = &viewport,
-        .scissorCount = 1,
-        .pScissors = &scissor,
-    };
-
-    VkPipelineRasterizationStateCreateInfo rasterization_info {
-        .sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
-        .depthClampEnable = VK_FALSE,
-        .rasterizerDiscardEnable = VK_FALSE,
-        .polygonMode = VK_POLYGON_MODE_FILL,
-        .cullMode = VK_CULL_MODE_BACK_BIT,
-        .frontFace = VK_FRONT_FACE_CLOCKWISE,
-        .depthBiasEnable = VK_FALSE,
-        .depthBiasConstantFactor = 0.0f,
-        .depthBiasClamp = 0.0f,
-        .depthBiasSlopeFactor = 0.0f,
-        .lineWidth = 1.0f,
-    };
-
-    VkPipelineMultisampleStateCreateInfo multisample_info {
-        .sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
-        .rasterizationSamples = VK_SAMPLE_COUNT_1_BIT,
-        .sampleShadingEnable = VK_FALSE,
-        .minSampleShading = 1.0f,
-        .pSampleMask = nullptr,
-        .alphaToCoverageEnable = VK_FALSE,
-        .alphaToOneEnable = VK_FALSE,
-    };
-
-    VkPipelineColorBlendAttachmentState color_blend_attachment {
-        .blendEnable = VK_FALSE,
-        .srcColorBlendFactor = VK_BLEND_FACTOR_ONE,
-        .dstColorBlendFactor = VK_BLEND_FACTOR_ZERO,
-        .colorBlendOp = VK_BLEND_OP_ADD,
-        .srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE,
-        .dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO,
-        .alphaBlendOp = VK_BLEND_OP_ADD,
-        .colorWriteMask =
-            VK_COLOR_COMPONENT_R_BIT |
-            VK_COLOR_COMPONENT_G_BIT |
-            VK_COLOR_COMPONENT_B_BIT |
-            VK_COLOR_COMPONENT_A_BIT,
-    };
-
-    VkPipelineColorBlendStateCreateInfo color_blend_info {
-        .sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
-        .logicOpEnable = VK_FALSE,
-        .logicOp = VK_LOGIC_OP_COPY,
-        .attachmentCount = 1,
-        .pAttachments = &color_blend_attachment,
-        .blendConstants = { 0.0f, 0.0f, 0.0f, 0.0f },
-    };
-
-    VkPipelineLayoutCreateInfo layout_info = {
-        .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
-        .setLayoutCount = 0,
-        .pSetLayouts = nullptr,
-        .pushConstantRangeCount = 0,
-        .pPushConstantRanges = nullptr,
-    };
-
-    if(vkCreatePipelineLayout(
-        m_context.device(),
-        &layout_info,
-        nullptr,
-        &m_pipeline_layout
-    ) != VK_SUCCESS)
-        throw std::runtime_error("failed to create pipeline layout");
-
-    VkGraphicsPipelineCreateInfo pipeline_info {
-        .sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
-        .stageCount = 2,
-        .pStages = shader_stage_infos,
-        .pVertexInputState = &vertex_info,
-        .pInputAssemblyState = &assembly_info,
-        .pViewportState = &viewport_info,
-        .pRasterizationState = &rasterization_info,
-        .pMultisampleState = &multisample_info,
-        .pDepthStencilState = nullptr,
-        .pColorBlendState = &color_blend_info,
-        .pDynamicState = nullptr,
-        .layout = m_pipeline_layout,
-        .renderPass = m_render_pass,
-        .subpass = 0,
-        .basePipelineHandle = VK_NULL_HANDLE,
-        .basePipelineIndex = -1,
-    };
-
-    if(vkCreateGraphicsPipelines(
-        m_context.device(),
-        VK_NULL_HANDLE,
-        1, &pipeline_info,
-        nullptr,
-        &m_pipeline
-    ) != VK_SUCCESS)
-        throw std::runtime_error("failed to create graphic pipeline");
-}
-
-void VulkanTutorial::create_framebuffers() {
-    m_framebuffers.resize(m_swapchain.image_count());
-
-    for(size_t index = 0; index < m_framebuffers.size(); index += 1) {
-        VkImageView view = m_swapchain.image_view(index);
-
-        VkFramebufferCreateInfo framebuffer_info {
-            .sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
-            .renderPass = m_render_pass,
-            .attachmentCount = 1,
-            .pAttachments = &view,
-            .width = m_swapchain.extent().width,
-            .height = m_swapchain.extent().height,
-            .layers = 1,
-        };
-
-        if(vkCreateFramebuffer(
-            m_context.device(),
-            &framebuffer_info,
-            nullptr,
-            &m_framebuffers[index]
-        ) != VK_SUCCESS)
-            throw std::runtime_error("failed to create framebuffer");
-    }
-}
-
-void VulkanTutorial::create_command_pool() {
-    if(m_command_pool != VK_NULL_HANDLE)
-        return;
-
-    VkCommandPoolCreateInfo pool_info {
-        .sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
-        .flags = 0,
-        .queueFamilyIndex = m_context.queue_family(GRAPHIC_QUEUE),
-    };
-
-    if(vkCreateCommandPool(
-        m_context.device(),
-        &pool_info,
-        nullptr,
-        &m_command_pool
-    ) != VK_SUCCESS)
-        throw std::runtime_error("failed to create command pool");
-}
-
-void VulkanTutorial::create_vertex_buffer() {
-    if(m_vertex_buffer != VK_NULL_HANDLE)
-        return;
-
-    VkDeviceSize buffer_size = sizeof(vertices[0]) * vertices.size();
-
-    std::tie(m_vertex_buffer, m_vertex_buffer_memory) = m_context.create_buffer(
-        buffer_size,
-        VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
-        VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
-        | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
-    );
-
-    void* buffer = nullptr;
-    vkMapMemory(
-        m_context.device(),
-        m_vertex_buffer_memory,
-        0,
-        buffer_size,
-        0,
-        &buffer
-    );
-
-    memcpy(buffer, vertices.data(), size_t(buffer_size));
-
-    vkUnmapMemory(
-        m_context.device(),
-        m_vertex_buffer_memory
-    );
-}
-
-void VulkanTutorial::create_command_buffers() {
-    create_command_pool();
-    create_vertex_buffer();
-
-    m_command_buffers.resize(m_framebuffers.size());
-
-    VkCommandBufferAllocateInfo allocate_info {
-        .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
-        .commandPool = m_command_pool,
-        .level = VK_COMMAND_BUFFER_LEVEL_PRIMARY,
-        .commandBufferCount = uint32_t(m_command_buffers.size()),
-    };
-
-    if(vkAllocateCommandBuffers(
-        m_context.device(),
-        &allocate_info,
-        m_command_buffers.data()
-    ) != VK_SUCCESS)
-        throw std::runtime_error("failed to allocate command buffers");
-
-    for(size_t index = 0; index < m_command_buffers.size(); index += 1) {
-        VkCommandBuffer command_buffer = m_command_buffers[index];
-
-        VkCommandBufferBeginInfo begin_info {
-            .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
-            .flags = 0,
-            .pInheritanceInfo = nullptr,
-        };
-
-        logger.debug() << "record command buffer " << index << " (" << command_buffer << ")";
-
-        if(vkBeginCommandBuffer(
-            command_buffer,
-            &begin_info
-        ) != VK_SUCCESS)
-            throw std::runtime_error("failed to begin command buffer");
-
-        VkClearValue clear_color = {
-            .color = {
-                .float32 = { 0.0f, 0.0f, 0.0f, 1.0f }
-            }
-        };
-
-        VkRenderPassBeginInfo pass_info {
-            .sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
-            .renderPass = m_render_pass,
-            .framebuffer = m_framebuffers[index],
-            .renderArea = {
-                .offset = { 0, 0 },
-                .extent = m_swapchain.extent(),
-            },
-            .clearValueCount = 1,
-            .pClearValues = &clear_color,
-        };
-
-        vkCmdBeginRenderPass(
-            command_buffer,
-            &pass_info,
-            VK_SUBPASS_CONTENTS_INLINE
-        );
-
-        vkCmdBindPipeline(
-            command_buffer,
-            VK_PIPELINE_BIND_POINT_GRAPHICS,
-            m_pipeline
-        );
-
-        VkBuffer vertex_buffers[] = {
-            m_vertex_buffer,
-        };
-        VkDeviceSize offsets[] = {
-            0,
-        };
-        vkCmdBindVertexBuffers(
-            command_buffer,
-            0,
-            1,
-            vertex_buffers,
-            offsets
-        );
-
-        vkCmdDraw(
-            command_buffer,
-            uint32_t(vertices.size()),
-            1,
-            0,
-            0
-        );
-
-        vkCmdEndRenderPass(command_buffer);
-
-        if(vkEndCommandBuffer(command_buffer) != VK_SUCCESS)
-            throw("failed to record command buffer");
-    }
-}

src/VulkanTutorial.h

@@ -1,66 +0,0 @@
-#pragma once
-
-#include <Vulkan/Context.h>
-#include <Vulkan/Swapchain.h>
-
-#include <SDL2/SDL.h>
-#include <vulkan/vulkan.h>
-#include <Eigen/Dense>
-#include <vector>
-
-
-struct Vertex {
-    Eigen::Vector2f position;
-    Eigen::Vector3f color;
-
-    static VkVertexInputBindingDescription binding_description();
-    static std::array<VkVertexInputAttributeDescription, 2> attributes_description();
-};
-
-
-class VulkanTutorial {
-public:
-    enum QueueIndex {
-        GRAPHIC_QUEUE,
-    };
-
-public:
-    VulkanTutorial();
-    VulkanTutorial(const VulkanTutorial&) = delete;
-    ~VulkanTutorial();
-
-    VulkanTutorial& operator=(const VulkanTutorial&) = delete;
-
-    void initialize(SDL_Window* window);
-    void shutdown();
-
-    void draw_frame();
-    void invalidate_swapchain();
-
-private:
-    void create_swapchain_objects(uint32_t image_count);
-    void destroy_swapchain_objects();
-
-    void create_render_pass();
-    void create_graphic_pipeline();
-    void create_framebuffers();
-    void create_command_pool();
-    void create_vertex_buffer();
-    void create_command_buffers();
-
-private:
-    Vulkan::Context m_context;
-    Vulkan::Swapchain m_swapchain;
-    VkQueue m_graphic_queue = nullptr;
-    VkQueue m_presentation_queue = nullptr;
-
-    VkRenderPass m_render_pass = VK_NULL_HANDLE;
-    VkPipelineLayout m_pipeline_layout = VK_NULL_HANDLE;
-    VkPipeline m_pipeline = VK_NULL_HANDLE;
-    std::vector<VkFramebuffer> m_framebuffers;
-    VkCommandPool m_command_pool = VK_NULL_HANDLE;
-    VkBuffer m_vertex_buffer = VK_NULL_HANDLE;
-    VkDeviceMemory m_vertex_buffer_memory = VK_NULL_HANDLE;
-    std::vector<VkCommandBuffer> m_command_buffers;
-    std::vector<VkSemaphore> m_render_done;
-};

src/core/ArrayView.h

@@ -0,0 +1,80 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+
+#include <core/types.h>
+
+
+template<typename T>
+class ArrayView {
+public:
+    ArrayView() = default;
+    ArrayView(const ArrayView&) = default;
+    ArrayView(ArrayView&&) = default;
+    ~ArrayView() = default;
+
+    template<typename U>
+    ArrayView(Index size, U* data, Index stride=sizeof(T), Index byte_offset=0)
+        : m_data(reinterpret_cast<Byte*>(data) + byte_offset)
+        , m_size(size)
+        , m_stride(stride)
+    {
+        assert(m_data != nullptr || m_size == 0);
+    }
+
+    explicit ArrayView(std::vector<T>& vector)
+        : m_data(vector.data())
+        , m_data(vector.size())
+    {}
+
+    ArrayView& operator=(const ArrayView&) = default;
+    ArrayView& operator=(ArrayView&&) = default;
+
+    explicit operator bool() const {
+        return m_size != 0;
+    }
+
+    Index size() const {
+        return m_size;
+    }
+
+    Index stride() const {
+        return m_stride;
+    }
+
+    bool is_dense() const {
+        return m_stride == sizeof(T);
+    }
+
+    const T* data() const {
+        return reinterpret_cast<const T*>(m_data);
+    }
+
+    T* data() {
+        return reinterpret_cast<T*>(m_data);
+    }
+
+    const T& operator[](Index index) const {
+        assert(index < m_size);
+        return *reinterpret_cast<T*>(m_data + index * m_stride);
+    }
+
+    T& operator[](Index index) {
+        return const_cast<T&>(const_cast<const ArrayView&>(*this)[index]);
+    }
+
+    ArrayView slice(Index start, Index count, Index step=1) {
+        assert(step > 0);
+        assert(start + count * step <= m_size);
+        return ArrayView(
+            count,
+            m_data + start * m_stride,
+            m_stride * step
+        );
+    }
+
+private:
+    Byte* m_data = nullptr;
+    Index m_size = 0;
+    Index m_stride = sizeof(T);
+};

src/core/Logger.cpp

@@ -1,4 +1,5 @@
-#include <Logger.h>
+// Copyright 2022 Simon Boyé
+#include <core/Logger.h>
 
 #include <iostream>
 

src/core/Logger.h

@@ -1,3 +1,4 @@
+// Copyright 2022 Simon Boyé
 #pragma once
 
 #include <ostream>

src/core/math.cpp

@@ -0,0 +1,39 @@
+// Copyright 2022 Simon Boyé
+#include <core/math.h>
+
+
+Eigen::Matrix4f projection_matrix(float x_min, float x_max, float y_min, float y_max, float z_min, float z_max) {
+    auto const cx = x_max + x_min;
+    auto const cy = y_max + y_min;
+    auto const cz = z_max + z_min;
+
+    auto const dx = x_max - x_min;
+    auto const dy = y_max - y_min;
+    auto const dz = z_max - z_min;
+
+    auto const sz = z_max / dz;
+
+    return (Eigen::Matrix4f() <<
+        2.0f * z_min / dx,              0.0f, -cx / dx,             0.0f,
+                     0.0f, 2.0f * z_min / dy, -cy / dy,             0.0f,
+                     0.0f,              0.0f,       sz, (1 - sz) * z_max,
+                     0.0f,              0.0f,     1.0f,             0.0f
+    ).finished();
+}
+
+Eigen::Matrix4f look_at_matrix(
+    const Eigen::Vector3f& cam_pos,
+    const Eigen::Vector3f& look_at,
+    const Eigen::Vector3f& up
+) {
+    const Eigen::Vector3f z = (look_at - cam_pos).normalized();
+    const Eigen::Vector3f x = z.cross(up).normalized();
+    const Eigen::Vector3f y = z.cross(x).normalized();
+
+    const auto view_linear = (Eigen::Matrix3f() << x, y, z).finished().transpose();
+    return (Eigen::Matrix4f() <<
+        view_linear,
+        view_linear * (-cam_pos),
+        Eigen::Vector4f::UnitW().transpose()
+    ).finished();
+}

src/core/math.h

@@ -0,0 +1,60 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+
+#include <core/types.h>
+#include <core/ArrayView.h>
+
+#include <Eigen/Dense>
+
+#include <type_traits>
+
+
+using Real = float;
+
+using Vector2 = Eigen::Matrix<Real, 2, 1>;
+using Vector3 = Eigen::Matrix<Real, 3, 1>;
+using Vector4 = Eigen::Matrix<Real, 4, 1>;
+
+using Matrix2 = Eigen::Matrix<Real, 2, 2>;
+using Matrix3 = Eigen::Matrix<Real, 3, 3>;
+using Matrix4 = Eigen::Matrix<Real, 4, 4>;
+
+using Transform = Eigen::Transform<Real, 3, Eigen::Affine>;
+using AngleAxis = Eigen::AngleAxis<Real>;
+using Quaternion = Eigen::Quaternion<Real>;
+
+using Triangle = Eigen::Array<Index, 3, 1>;
+
+
+using Vector3AV = ArrayView<Vector3>;
+using TriangleAV = ArrayView<Triangle>;
+
+
+template<typename Scalar, typename Derived0, typename Derived1>
+auto lerp(
+    Scalar factor,
+    const Eigen::MatrixBase<Derived0>& m0,
+    const Eigen::MatrixBase<Derived1>& m1
+) -> std::enable_if_t<
+    Derived0::RowsAtCompileTime == Derived1::RowsAtCompileTime &&
+    Derived0::ColsAtCompileTime == Derived1::ColsAtCompileTime,
+    Eigen::Matrix<
+        std::common_type_t<
+            Scalar,
+            typename Derived0::Scalar,
+            typename Derived1::Scalar
+        >,
+        Derived0::RowsAtCompileTime,
+        Derived0::ColsAtCompileTime
+    >
+> {
+    return (Scalar(1) - factor) * m0 + factor * m1;
+}
+
+Eigen::Matrix4f projection_matrix(float x_min, float x_max, float y_min, float y_max, float z_min, float z_max);
+Eigen::Matrix4f look_at_matrix(
+    const Eigen::Vector3f& cam_pos,
+    const Eigen::Vector3f& look_at,
+    const Eigen::Vector3f& up
+);

src/core/types.h

@@ -0,0 +1,11 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+
+#include <Eigen/Dense>
+
+#include <type_traits>
+
+
+using Byte = unsigned char;
+using Index = uint32_t;

src/core/utils.cpp

@@ -1,4 +1,5 @@
-#include <utils.h>
+// Copyright 2022 Simon Boyé
+#include <core/utils.h>
 
 #include <cstring>
 #include <fstream>

src/core/utils.h

@@ -1,3 +1,4 @@
+// Copyright 2022 Simon Boyé
 #pragma once
 
 #include <cassert>
@@ -31,6 +32,15 @@ Guard<T> make_guard(T&& teardown) {
     return Guard<T>(std::move(teardown));
 }
 
+
+template<typename T>
+T& recreate_object(T& object) {
+    object.~T();
+    new(&object) T;
+    return object;
+}
+
+
 template<typename... Args>
 std::string cat(Args&&... args) {
     std::ostringstream ostream;
@@ -38,8 +48,10 @@ std::string cat(Args&&... args) {
     return ostream.str();
 }
 
+
 std::vector<char> read_binary_file(const char* path);
 
+
 template<typename T>
 class Array {
 public:
@@ -53,6 +65,17 @@ public:
         assert((size == 0 && m_data == nullptr) || (size != 0 && m_data != nullptr));
     }
 
+    // Array(T* item)
+    //     : m_size(1)
+    //     , m_data(item)
+    // {}
+
+    template<size_t Size>
+    Array(T (&array)[Size])
+        : m_size(Size)
+        , m_data(array)
+    {}
+
     Array(const std::vector<T>& vector)
         : m_size(vector.size())
         , m_data(vector.data())

src/main.cpp

@@ -1,7 +1,7 @@
-#include <Logger.h>
+// Copyright 2022 Simon Boyé
 #include <VkExpe.h>
 
-#include <iostream>
+#include <core/Logger.h>
 
 
 int main(int argc, char** argv) {

src/vk/Buffer.cpp

@@ -0,0 +1,179 @@
+// Copyright 2022 Simon Boyé
+#include <vk/Buffer.h>
+#include <vk/Context.h>
+
+#include <core/Logger.h>
+
+#include <stdexcept>
+#include <algorithm>
+#include <cassert>
+#include <cstring>
+
+
+namespace vk {
+
+
+Buffer::Buffer() noexcept {
+}
+
+Buffer::Buffer(
+    Context& context,
+    VkDeviceSize size,
+    VkBufferUsageFlags usage
+)
+    : Wrapper(context)
+{
+    assert(*m_context);
+
+    VkBufferCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
+        .size = size,
+        .usage = usage,
+        .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
+    };
+    if(vkCreateBuffer(
+        m_context->device(),
+        &create_info,
+        nullptr,
+        &m_buffer
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create buffer");
+}
+
+Buffer::Buffer(
+    Context& context,
+    VkDeviceSize size,
+    VkBufferUsageFlags usage,
+    VkMemoryPropertyFlags memory_properties
+)
+    : Buffer(context, size, usage)
+{
+    allocate_and_bind_memory(memory_properties);
+}
+
+Buffer::Buffer(Buffer&& other) noexcept {
+    swap(other);
+}
+
+Buffer::~Buffer() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+Buffer& Buffer::operator=(Buffer&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+VkMemoryRequirements Buffer::memory_requirements() const noexcept {
+    assert(!is_null());
+    assert(*m_context);
+
+    VkMemoryRequirements memory_requirements;
+    vkGetBufferMemoryRequirements(
+        m_context->device(),
+        m_buffer,
+        &memory_requirements
+    );
+
+    return memory_requirements;
+}
+
+
+void Buffer::bind_memory(const MemoryBlock& memory_block, VkDeviceSize offset) {
+    assert(!is_null());
+    assert(*m_context);
+    assert(memory_block);
+
+    // m_memory = std::move(memory_block);
+    if(vkBindBufferMemory(
+        m_context->device(),
+        m_buffer,
+        memory_block.device_memory(),
+        memory_block.offset() + offset
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to bind buffer memory");
+}
+
+void Buffer::bind_memory(MemoryBlock&& memory_block) {
+    bind_memory(memory_block);
+    m_memory = std::move(memory_block);
+}
+
+void Buffer::allocate_and_bind_memory(VkMemoryPropertyFlags memory_properties) {
+    assert(!is_null());
+    assert(*m_context);
+
+    const auto memory_requirements = this->memory_requirements();
+    m_memory = m_context->allocator().allocate(
+        memory_requirements.size,
+        memory_requirements.memoryTypeBits,
+        memory_properties
+    );
+
+    bind_memory(m_memory);
+}
+
+
+void Buffer::upload(size_t size, void* src_buffer, uint32_t dst_queue_family) {
+    assert(!is_null());
+    assert(*m_context);
+
+    const bool use_staging_buffer =
+        (m_memory.memory_type_info(*m_context).propertyFlags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) == 0;
+
+    if(use_staging_buffer) {
+        auto staging_buffer = Buffer(
+            *m_context,
+            size,
+            VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
+            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
+            | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
+        );
+
+        void* dst_buffer = staging_buffer.memory().map(*m_context);
+        std::memcpy(dst_buffer, src_buffer, size);
+        staging_buffer.memory().unmap(*m_context);
+
+        m_context->copy_buffer(
+            m_buffer,
+            staging_buffer,
+            dst_queue_family,
+            size
+        );
+
+        staging_buffer.destroy();
+    }
+    else {
+        void* dst_buffer = m_memory.map(*m_context);
+        std::memcpy(dst_buffer, src_buffer, size);
+        m_memory.unmap(*m_context);
+    }
+}
+
+
+void Buffer::destroy() noexcept {
+    assert(!is_null());
+    assert(*m_context);
+
+    if(m_memory) {
+        m_memory.free();
+        m_memory = MemoryBlock();
+    }
+
+    vkDestroyBuffer(
+        m_context->device(),
+        m_buffer,
+        nullptr
+    );
+
+    m_context = nullptr;
+    m_buffer = VK_NULL_HANDLE;
+}
+
+
+
+}

src/vk/Buffer.h

@@ -0,0 +1,91 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Memory.h>
+#include <vk/Wrapper.h>
+
+#include <core/utils.h>
+
+#include <vulkan/vulkan.h>
+
+#include <memory>
+#include <vector>
+
+
+namespace vk {
+
+
+class Buffer: public Wrapper {
+public:
+    Buffer() noexcept;
+    Buffer(
+        Context& context,
+        VkDeviceSize size,
+        VkBufferUsageFlags usage
+    );
+    Buffer(
+        Context& context,
+        VkDeviceSize size,
+        VkBufferUsageFlags usage,
+        VkMemoryPropertyFlags memory_properties
+    );
+    Buffer(const Buffer&) = default;
+    Buffer(Buffer&& other) noexcept;
+    ~Buffer() noexcept;
+
+    Buffer& operator=(const Buffer&) = default;
+    Buffer& operator=(Buffer&& other) noexcept;
+
+    inline explicit operator bool() const {
+        return !is_null();
+    }
+
+    inline bool is_null() const {
+        return m_buffer == VK_NULL_HANDLE;
+    }
+
+    inline operator VkBuffer() const noexcept {
+        return m_buffer;
+    }
+
+    inline VkBuffer buffer() const noexcept {
+        return m_buffer;
+    }
+
+    inline const MemoryBlock& memory() const noexcept {
+        return m_memory;
+    }
+
+    inline MemoryBlock& memory() noexcept {
+        return m_memory;
+    }
+
+    VkMemoryRequirements memory_requirements() const noexcept;
+
+    void bind_memory(const MemoryBlock& memory_block, VkDeviceSize offset=0);
+    void bind_memory(MemoryBlock&& memory_block);
+    void allocate_and_bind_memory(VkMemoryPropertyFlags memory_properties);
+
+    void upload(size_t size, void* src_buffer, uint32_t dst_queue_family);
+
+    inline void swap(Buffer& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_buffer, other.m_buffer);
+        swap(m_memory, other.m_memory);
+    }
+
+    friend inline void swap(Buffer& buffer_0, Buffer& buffer_1) noexcept {
+        buffer_0.swap(buffer_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkBuffer m_buffer = VK_NULL_HANDLE;
+    MemoryBlock m_memory;
+};
+
+
+}

src/vk/CommandBuffer.cpp

@@ -0,0 +1,70 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/CommandBuffer.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+CommandBuffer::CommandBuffer() noexcept {
+}
+
+CommandBuffer::CommandBuffer(Context& context, VkCommandPool command_pool, VkCommandBufferLevel level)
+    : Wrapper(context)
+    , m_command_pool(command_pool)
+{
+    assert(m_context);
+    assert(m_command_pool != VK_NULL_HANDLE);
+
+    VkCommandBufferAllocateInfo allocate_info {
+        .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO,
+        .commandPool = m_command_pool,
+        .level = level,
+        .commandBufferCount = 1,
+    };
+    if(vkAllocateCommandBuffers(
+        context.device(),
+        &allocate_info,
+        &m_command_buffer
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to allocate command pool");
+}
+
+CommandBuffer::CommandBuffer(CommandBuffer&& other) noexcept
+{
+    swap(other);
+}
+
+CommandBuffer::~CommandBuffer() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+CommandBuffer& CommandBuffer::operator=(CommandBuffer&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void CommandBuffer::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkFreeCommandBuffers(
+        m_context->device(),
+        m_command_pool,
+        1,
+        &m_command_buffer
+    );
+
+    m_command_buffer = nullptr;
+}
+
+
+}

src/vk/CommandBuffer.h

@@ -0,0 +1,67 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class CommandBuffer: public Wrapper {
+public:
+    CommandBuffer() noexcept;
+    CommandBuffer(Context& context, VkCommandPool command_pool, VkCommandBufferLevel level=VK_COMMAND_BUFFER_LEVEL_PRIMARY);
+    CommandBuffer(const CommandBuffer&) = default;
+    CommandBuffer(CommandBuffer&& other) noexcept;
+    ~CommandBuffer() noexcept;
+
+    CommandBuffer& operator=(const CommandBuffer&) = default;
+    CommandBuffer& operator=(CommandBuffer&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_command_buffer == VK_NULL_HANDLE;
+    }
+
+    inline const VkCommandPool command_pool() const noexcept {
+        return m_command_pool;
+    }
+
+    inline VkCommandPool command_pool() noexcept {
+        return m_command_pool;
+    }
+
+    inline operator VkCommandBuffer() noexcept {
+        return m_command_buffer;
+    }
+
+    inline VkCommandBuffer command_buffer() noexcept {
+        return m_command_buffer;
+    }
+
+    inline void swap(CommandBuffer& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_command_pool, other.m_command_pool);
+        swap(m_command_buffer, other.m_command_buffer);
+    }
+
+    friend inline void swap(CommandBuffer& command_buffer_0, CommandBuffer& command_buffer_1) noexcept {
+        command_buffer_0.swap(command_buffer_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkCommandPool m_command_pool = VK_NULL_HANDLE;
+    VkCommandBuffer m_command_buffer = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/CommandPool.cpp

@@ -0,0 +1,67 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/CommandPool.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+CommandPool::CommandPool() noexcept {
+}
+
+CommandPool::CommandPool(Context& context, uint32_t queue_family, VkCommandPoolCreateFlags flags)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    VkCommandPoolCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,
+        .flags = flags,
+        .queueFamilyIndex = queue_family,
+    };
+    if(vkCreateCommandPool(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_command_pool
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create command pool");
+}
+
+CommandPool::CommandPool(CommandPool&& other) noexcept
+{
+    swap(other);
+}
+
+CommandPool::~CommandPool() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+CommandPool& CommandPool::operator=(CommandPool&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void CommandPool::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyCommandPool(
+        m_context->device(),
+        m_command_pool,
+        nullptr
+    );
+
+    m_command_pool = nullptr;
+}
+
+
+}

src/vk/CommandPool.h

@@ -0,0 +1,57 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class CommandPool: public Wrapper {
+public:
+    CommandPool() noexcept;
+    CommandPool(Context& context, uint32_t queue_family, VkCommandPoolCreateFlags flags=0);
+    CommandPool(const CommandPool&) = default;
+    CommandPool(CommandPool&& other) noexcept;
+    ~CommandPool() noexcept;
+
+    CommandPool& operator=(const CommandPool&) = default;
+    CommandPool& operator=(CommandPool&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_command_pool == VK_NULL_HANDLE;
+    }
+
+    inline operator VkCommandPool() noexcept {
+        return m_command_pool;
+    }
+
+    inline VkCommandPool command_pool() noexcept {
+        return m_command_pool;
+    }
+
+    inline void swap(CommandPool& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_command_pool, other.m_command_pool);
+    }
+
+    friend inline void swap(CommandPool& command_pool_0, CommandPool& command_pool_1) noexcept {
+        command_pool_0.swap(command_pool_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkCommandPool m_command_pool = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/Context.cpp

@@ -1,7 +1,10 @@
-#include <Vulkan/Context.h>
+// Copyright 2022 Simon Boyé
+#include <vk/Context.h>
+#include <vk/Memory.h>
+#include <vk/CommandBuffer.h>
 
-#include <utils.h>
+#include <core/utils.h>
-#include <Logger.h>
+#include <core/Logger.h>
 
 #include <SDL2/SDL_vulkan.h>
 
@@ -11,7 +14,7 @@
 #include <tuple>
 
 
-namespace Vulkan {
+namespace vk {
 
 
 ContextSettings::ContextSettings() {
@@ -121,6 +124,9 @@ void Context::initialize(const ContextSettings& settings) {
     create_surface(settings);
     choose_physical_device(settings);
     create_device(settings);
+    create_internal_objects();
+
+    m_allocator.reset(new Allocator(this));
 }
 
 void Context::shutdown() {
@@ -132,6 +138,12 @@ void Context::shutdown() {
     for(auto& callback: m_context_destruction_callbacks)
         callback();
 
+    m_allocator->free_all_pages();
+    m_allocator.reset();
+
+    m_transfer_fence.destroy();
+    m_transfer_command_pool.destroy();
+
     destroy_device(m_device);
     destroy_surface(m_surface);
     destroy_debug_messenger(m_debug_messenger);
@@ -270,68 +282,60 @@ VkShaderModule Context::create_shader_module_from_file(const char* path) {
     return VK_NULL_HANDLE;
 }
 
-int32_t Context::find_memory_type(uint32_t type_filter, VkMemoryPropertyFlags properties) {
+void Context::copy_buffer(VkBuffer dst, VkBuffer src, uint32_t dst_queue_family, VkDeviceSize size) {
-    for(uint32_t type_index = 0; type_index < m_memory_properties.memoryTypeCount; type_index += 1) {
+    CommandBuffer command_buffer(*this, m_transfer_command_pool);
-        if(((1 << type_index) & type_filter) &&
-            (m_memory_properties.memoryTypes[type_index].propertyFlags & properties) == properties)
-            return type_index;
-    }
 
-    return -1;
+    VkCommandBufferBeginInfo begin_info {
-}
+        .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
-
+        .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
-VkDeviceMemory Context::allocate_memory(VkDeviceSize size, uint32_t type_filter, VkMemoryPropertyFlags properties) {
-    uint32_t memory_type = find_memory_type(type_filter, properties);
-
-    VkMemoryAllocateInfo malloc_info {
-        .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
-        .allocationSize = size,
-        .memoryTypeIndex = memory_type,
     };
+    vkBeginCommandBuffer(command_buffer, &begin_info);
 
-    VkDeviceMemory memory = VK_NULL_HANDLE;
+    VkBufferCopy region {
-    if(vkAllocateMemory(m_device, &malloc_info, nullptr, &memory) != VK_SUCCESS)
+        .srcOffset = 0,
-        throw std::runtime_error("failed to allocate device memory");
+        .dstOffset = 0,
-
-    return memory;
-}
-
-std::tuple<VkBuffer, VkDeviceMemory> Context::create_buffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags memory_properties) {
-    VkDeviceMemory memory = VK_NULL_HANDLE;
-    VkBuffer buffer = VK_NULL_HANDLE;
-
-    VkBufferCreateInfo buffer_info {
-        .sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,
         .size = size,
-        .usage = usage,
-        .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
     };
+    vkCmdCopyBuffer(command_buffer, src, dst, 1, &region);
 
-    if(vkCreateBuffer(
+    VkBufferMemoryBarrier buffer_barrier {
-        m_device,
+        .sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER,
-        &buffer_info,
+        .srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
-        nullptr,
+        .dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT,
-        &buffer
+        .srcQueueFamilyIndex = queue_family(VK_QUEUE_TRANSFER_BIT),
-    ) != VK_SUCCESS)
+        .dstQueueFamilyIndex = dst_queue_family,
-        throw std::runtime_error("failed to create buffer");
+        .buffer = dst,
-
+        .offset = 0,
-    VkMemoryRequirements memory_requirements;
+        .size = size,
-    vkGetBufferMemoryRequirements(
+    };
-        m_device,
+    vkCmdPipelineBarrier(
-        buffer,
+        command_buffer,
-        &memory_requirements
+        VK_PIPELINE_STAGE_TRANSFER_BIT,
+        VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
+        0,
+        0, nullptr,
+        1, &buffer_barrier,
+        0, nullptr
     );
 
-    memory = allocate_memory(
+    vkEndCommandBuffer(command_buffer);
-        memory_requirements.size,
+
-        memory_requirements.memoryTypeBits,
+    m_transfer_fence.reset();
-        VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT
+
-        | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT
+    VkCommandBuffer command_buffers[] = {
+        command_buffer
+    };
+    VkSubmitInfo submit_info {
+        .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
+        .commandBufferCount = 1,
+        .pCommandBuffers = command_buffers,
+    };
+    vkQueueSubmit(
+        queue(m_transfer_queue_index),
+        1, &submit_info,
+        m_transfer_fence
     );
-
+    m_transfer_fence.wait();
-    vkBindBufferMemory(m_device, buffer, memory, 0);
-
-    return { buffer, memory };
 }
 
 
@@ -415,6 +419,14 @@ void Context::destroy_command_pool(VkCommandPool& command_pool) {
     command_pool = VK_NULL_HANDLE;
 }
 
+void Context::destroy_descriptor_pool(VkDescriptorPool& descriptor_pool) {
+    if(descriptor_pool == VK_NULL_HANDLE)
+        return;
+
+    vkDestroyDescriptorPool(m_device, descriptor_pool, nullptr);
+    descriptor_pool = VK_NULL_HANDLE;
+}
+
 void Context::destroy_render_pass(VkRenderPass& render_pass) {
     if(render_pass == VK_NULL_HANDLE)
         return;
@@ -423,6 +435,14 @@ void Context::destroy_render_pass(VkRenderPass& render_pass) {
     render_pass = VK_NULL_HANDLE;
 }
 
+void Context::destroy_descriptor_set_layout(VkDescriptorSetLayout& descriptor_set_layout) {
+    if(descriptor_set_layout == VK_NULL_HANDLE)
+        return;
+
+    vkDestroyDescriptorSetLayout(m_device, descriptor_set_layout, nullptr);
+    descriptor_set_layout = VK_NULL_HANDLE;
+}
+
 void Context::destroy_pipeline_layout(VkPipelineLayout& pipeline_layout) {
     if(pipeline_layout == VK_NULL_HANDLE)
         return;
@@ -542,7 +562,7 @@ void Context::create_instance(const ContextSettings& settings) {
     if(vkCreateInstance(&instance_info, nullptr, &m_instance) != VK_SUCCESS)
         throw std::runtime_error("failed to create vulkan instance");
 
-    initialize_extension_functions();
+    initialize_instance_extension_functions();
 
     if(settings.debug()) {
         createDebugUtilsMessenger(
@@ -599,7 +619,15 @@ std::optional<VkPhysicalDeviceProperties> Context::select_physical_device(
     VkPhysicalDeviceProperties device_properties;
     vkGetPhysicalDeviceProperties(physical_device, &device_properties);
 
-    m_queue_families.assign(settings.queues().size(), INVALID_QUEUE_FAMILY);
+    VkPhysicalDeviceFeatures available_features;
+    vkGetPhysicalDeviceFeatures(physical_device, &available_features);
+
+    if (!available_features.geometryShader)
+        return std::nullopt;
+
+
+    m_transfer_queue_index = settings.queues().size();
+    m_queue_families.assign(settings.queues().size() + 1, INVALID_QUEUE_FAMILY);
     m_presentation_queue_family = INVALID_QUEUE_FAMILY;
 
     auto const queue_families = this->queue_families(physical_device);
@@ -628,6 +656,10 @@ std::optional<VkPhysicalDeviceProperties> Context::select_physical_device(
                 m_queue_families[index] = queue_family_index;
         }
 
+        if(m_queue_families[m_transfer_queue_index] == INVALID_QUEUE_FAMILY
+                && queue_family.queueFlags == VK_QUEUE_TRANSFER_BIT)
+            m_queue_families[m_transfer_queue_index] = queue_family_index;
+
         queue_family_index += 1;
     }
 
@@ -672,6 +704,7 @@ std::optional<VkPhysicalDeviceProperties> Context::select_physical_device(
             surface_formats[0];
 
         m_present_mode = VK_PRESENT_MODE_FIFO_KHR;
+        // m_present_mode = VK_PRESENT_MODE_IMMEDIATE_KHR;
     }
 
     return device_properties;
@@ -697,9 +730,12 @@ void Context::create_device(const ContextSettings& settings) {
     }
 
     VkPhysicalDeviceFeatures const device_features {
+        .geometryShader = true,
     };
 
-    std::vector<const char*> extensions;
+    std::vector<const char*> extensions {
+        VK_KHR_DRAW_INDIRECT_COUNT_EXTENSION_NAME,
+    };
     if(m_window) {
         extensions.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
     };
@@ -722,6 +758,8 @@ void Context::create_device(const ContextSettings& settings) {
     ) != VK_SUCCESS)
         throw std::runtime_error("failed to create logical device");
 
+    initialize_device_extension_functions();
+
     m_queues.resize(m_queue_families.size());
     for(size_t index = 0; index < m_queue_families.size(); ++index) {
         vkGetDeviceQueue(
@@ -734,10 +772,19 @@ void Context::create_device(const ContextSettings& settings) {
     vkGetDeviceQueue(m_device, m_presentation_queue_family, 0, &m_presentation_queue);
 }
 
-void Context::initialize_extension_functions() {
+void Context::create_internal_objects() {
+    m_transfer_command_pool = CommandPool(
+        *this,
+        queue_family(m_transfer_queue_index),
+        VK_COMMAND_POOL_CREATE_TRANSIENT_BIT
+    );
+    m_transfer_fence = Fence(*this);
+}
+
+void Context::initialize_instance_extension_functions() {
     uint32_t errors_count = 0;
 
-    #define GET_PROC_ADDR(ptr_name, func_name) \
+    #define GET_INSTANCE_PROC_ADDR(ptr_name, func_name) \
         ptr_name = (PFN_vk ## func_name)vkGetInstanceProcAddr( \
             m_instance, "vk" #func_name); \
         if(ptr_name == nullptr) \
@@ -746,9 +793,27 @@ void Context::initialize_extension_functions() {
             errors_count += 1; \
         }
 
-    GET_PROC_ADDR(createDebugUtilsMessenger, CreateDebugUtilsMessengerEXT)
+    GET_INSTANCE_PROC_ADDR(createDebugUtilsMessenger, CreateDebugUtilsMessengerEXT)
-    GET_PROC_ADDR(destroyDebugUtilsMessenger, DestroyDebugUtilsMessengerEXT)
+    GET_INSTANCE_PROC_ADDR(destroyDebugUtilsMessenger, DestroyDebugUtilsMessengerEXT)
-    GET_PROC_ADDR(setDebugUtilsObjectName, SetDebugUtilsObjectNameEXT)
+    GET_INSTANCE_PROC_ADDR(setDebugUtilsObjectName, SetDebugUtilsObjectNameEXT)
+
+    if(errors_count != 0)
+        throw std::runtime_error("failed to load extensions");
+}
+
+void Context::initialize_device_extension_functions() {
+    uint32_t errors_count = 0;
+
+    #define GET_DEVICE_PROC_ADDR(ptr_name, func_name) \
+        ptr_name = (PFN_vk ## func_name)vkGetDeviceProcAddr( \
+            m_device, "vk" #func_name); \
+        if(ptr_name == nullptr) \
+        { \
+            logger.error() << "failed to load extension function 'vk" #func_name "'"; \
+            errors_count += 1; \
+        }
+
+    GET_DEVICE_PROC_ADDR(cmdDrawIndexedIndirectCount, CmdDrawIndexedIndirectCountKHR)
 
     if(errors_count != 0)
         throw std::runtime_error("failed to load extensions");
@@ -760,35 +825,44 @@ VKAPI_ATTR VkBool32 VKAPI_CALL Context::log_debug_message(
         const VkDebugUtilsMessengerCallbackDataEXT* data,
         void* user_data
 ) {
-    auto stream = [severity]() {
+    if(data->messageIdNumber == 0)   // Loader message
-        switch(severity) {
+        return VK_FALSE;
-        case VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT:
-            return logger.debug();
-        case VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT:
-            return logger.info();
-        case VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT:
-            return logger.warning();
-        case VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT:
-            return logger.error();
-        }
-        return logger.debug();
-    }();
 
-    switch(type) {
+    {
-    case VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT:
+        auto stream = [severity]() {
-        stream << "[vk:general] ";
+            switch(severity) {
-        break;
+            case VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT:
-    case VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT:
+                return logger.debug();
-        stream << "[vk:validation] ";
+            case VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT:
-        break;
+                return logger.info();
-    case VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT:
+            case VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT:
-        stream << "[vk:performance] ";
+                return logger.warning();
-        break;
+            case VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT:
+                return logger.error();
+            }
+            return logger.debug();
+        }();
+
+        switch(type) {
+        case VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT:
+            stream << "[vk:general] ";
+            break;
+        case VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT:
+            stream << "[vk:validation] ";
+            break;
+        case VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT:
+            stream << "[vk:performance] ";
+            break;
+        }
+
+        stream << data->pMessage;
     }
 
-    stream << data->pMessage;
+    if(severity == VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT
-
+        && (
-    if(severity == VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT)
+            data->messageIdNumber != 2094043421 // wrong swapchain extent
+        )
+    )
         abort();
 
     return VK_FALSE;

src/vk/Context.h

@@ -1,9 +1,15 @@
+// Copyright 2022 Simon Boyé
 #pragma once
 
-#include <utils.h>
+#include <vk/forward.h>
-#include <Logger.h>
+#include <vk/CommandPool.h>
+#include <vk/Fence.h>
+
+#include <core/utils.h>
+#include <core/Logger.h>
 
 #include <SDL2/SDL.h>
+
 #include <vulkan/vulkan.h>
 
 #include <optional>
@@ -12,7 +18,7 @@
 #include <functional>
 
 
-namespace Vulkan {
+namespace vk {
 
 
 class Context;
@@ -61,6 +67,14 @@ public:
 
     Context& operator=(const Context&) = delete;
 
+    explicit inline operator bool() const {
+        return !is_null();
+    }
+
+    inline bool is_null() const {
+        return m_instance == nullptr;
+    }
+
     VkInstance instance();
     VkPhysicalDevice physical_device();
     VkDevice device();
@@ -70,11 +84,19 @@ public:
     VkQueue queue(size_t queue_index);
     VkQueue presentation_queue();
 
+    inline VkPhysicalDeviceMemoryProperties memory_properties() const noexcept {
+        return m_memory_properties;
+    }
+
     SDL_Window* window();
     VkSurfaceKHR surface();
     VkSurfaceFormatKHR surface_format() const;
     VkPresentModeKHR present_mode() const;
 
+    inline Allocator& allocator() noexcept {
+        return *m_allocator;
+    }
+
 
     void initialize(const ContextSettings& settings);
     void shutdown();
@@ -100,10 +122,7 @@ public:
     VkShaderModule create_shader_module(const std::vector<char> bytecode);
     VkShaderModule create_shader_module_from_file(const char* path);
 
-    int32_t find_memory_type(uint32_t type_filter, VkMemoryPropertyFlags properties);
+    void copy_buffer(VkBuffer dst, VkBuffer src, uint32_t dst_queue_family, VkDeviceSize size);
-    VkDeviceMemory allocate_memory(VkDeviceSize size, uint32_t type_filter, VkMemoryPropertyFlags properties);
-
-    std::tuple<VkBuffer, VkDeviceMemory> create_buffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags memory_properties);
 
 
     void destroy_instance(VkInstance& instance);
@@ -119,8 +138,10 @@ public:
     void destroy_buffer(VkBuffer& buffer);
 
     void destroy_command_pool(VkCommandPool& command_pool);
+    void destroy_descriptor_pool(VkDescriptorPool& descriptor_pool);
 
     void destroy_render_pass(VkRenderPass& render_pass);
+    void destroy_descriptor_set_layout(VkDescriptorSetLayout& descriptor_set_layout);
     void destroy_pipeline_layout(VkPipelineLayout& pipeline_layout);
     void destroy_pipeline(VkPipeline& pipeline);
 
@@ -133,6 +154,8 @@ public:
     PFN_vkDestroyDebugUtilsMessengerEXT destroyDebugUtilsMessenger = nullptr;
     PFN_vkSetDebugUtilsObjectNameEXT setDebugUtilsObjectName = nullptr;
 
+    PFN_vkCmdDrawIndexedIndirectCountKHR cmdDrawIndexedIndirectCount = nullptr;
+
 private:
     void create_instance(const ContextSettings& settings);
     void create_surface(const ContextSettings& settings);
@@ -142,8 +165,10 @@ private:
         const ContextSettings& settings
     );
     void create_device(const ContextSettings& settings);
+    void create_internal_objects();
 
-    void initialize_extension_functions();
+    void initialize_instance_extension_functions();
+    void initialize_device_extension_functions();
 
     static VKAPI_ATTR VkBool32 VKAPI_CALL log_debug_message(
         VkDebugUtilsMessageSeverityFlagBitsEXT severity,
@@ -172,7 +197,13 @@ private:
     VkSurfaceFormatKHR m_surface_format;
     VkPresentModeKHR m_present_mode;
 
+    uint32_t m_transfer_queue_index = UINT32_MAX;
+    CommandPool m_transfer_command_pool;
+    Fence m_transfer_fence;
+
     std::vector<ContextDestructionCallback> m_context_destruction_callbacks;
+
+    std::unique_ptr<Allocator> m_allocator;
 };
 
 

src/vk/DescriptorPool.cpp

@@ -0,0 +1,74 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/DescriptorPool.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+DescriptorPool::DescriptorPool() noexcept {
+}
+
+DescriptorPool::DescriptorPool(
+    Context& context,
+    uint32_t max_sets,
+    Array<const VkDescriptorPoolSize> pool_sizes,
+    VkDescriptorPoolCreateFlags flags
+)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    VkDescriptorPoolCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
+        .flags = flags,
+        .maxSets = max_sets,
+        .poolSizeCount = uint32_t(pool_sizes.size()),
+        .pPoolSizes = pool_sizes.data(),
+    };
+    if(vkCreateDescriptorPool(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_descriptor_pool
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create descriptor pool");
+}
+
+DescriptorPool::DescriptorPool(DescriptorPool&& other) noexcept
+{
+    swap(other);
+}
+
+DescriptorPool::~DescriptorPool() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+DescriptorPool& DescriptorPool::operator=(DescriptorPool&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void DescriptorPool::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyDescriptorPool(
+        m_context->device(),
+        m_descriptor_pool,
+        nullptr
+    );
+
+    m_descriptor_pool = nullptr;
+}
+
+
+}

src/vk/DescriptorPool.h

@@ -0,0 +1,64 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/utils.h>
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class DescriptorPool: public Wrapper {
+public:
+    DescriptorPool() noexcept;
+    DescriptorPool(
+        Context& context,
+        uint32_t max_sets,
+        Array<const VkDescriptorPoolSize> pool_sizes,
+        VkDescriptorPoolCreateFlags flags=0
+    );
+    DescriptorPool(const DescriptorPool&) = default;
+    DescriptorPool(DescriptorPool&& other) noexcept;
+    ~DescriptorPool() noexcept;
+
+    DescriptorPool& operator=(const DescriptorPool&) = default;
+    DescriptorPool& operator=(DescriptorPool&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_descriptor_pool == VK_NULL_HANDLE;
+    }
+
+    inline operator VkDescriptorPool() noexcept {
+        return m_descriptor_pool;
+    }
+
+    inline VkDescriptorPool descriptor_pool() noexcept {
+        return m_descriptor_pool;
+    }
+
+    inline void swap(DescriptorPool& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_descriptor_pool, other.m_descriptor_pool);
+    }
+
+    friend inline void swap(DescriptorPool& descriptor_pool_0, DescriptorPool& descriptor_pool_1) noexcept {
+        descriptor_pool_0.swap(descriptor_pool_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkDescriptorPool m_descriptor_pool = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/DescriptorSet.cpp

@@ -0,0 +1,76 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/DescriptorSet.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+DescriptorSet::DescriptorSet() noexcept {
+}
+
+DescriptorSet::DescriptorSet(
+    Context& context,
+    VkDescriptorPool descriptor_pool,
+    const VkDescriptorSetLayout& set_layout
+)
+    : Wrapper(context, DontOwnUnderlyingObject)
+    , m_descriptor_pool(descriptor_pool)
+{
+    assert(m_descriptor_pool != VK_NULL_HANDLE);
+
+    VkDescriptorSetAllocateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
+        .descriptorPool = m_descriptor_pool,
+        .descriptorSetCount = 1,
+        .pSetLayouts = &set_layout,
+    };
+    if(vkAllocateDescriptorSets(
+        context.device(),
+        &create_info,
+        &m_descriptor_set
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create descriptor_set");
+}
+
+DescriptorSet::DescriptorSet(DescriptorSet&& other) noexcept
+{
+    swap(other);
+}
+
+DescriptorSet::~DescriptorSet() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+DescriptorSet& DescriptorSet::operator=(DescriptorSet&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void DescriptorSet::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    if (!own_underlying_object())
+        return;
+
+    vkFreeDescriptorSets(
+        m_context->device(),
+        m_descriptor_pool,
+        1,
+        &m_descriptor_set
+    );
+
+    m_descriptor_set = nullptr;
+}
+
+
+}

src/vk/DescriptorSet.h

@@ -0,0 +1,71 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class DescriptorSet: public Wrapper {
+public:
+    DescriptorSet() noexcept;
+    DescriptorSet(
+        Context& context,
+        VkDescriptorPool descriptor_pool,
+        const VkDescriptorSetLayout& set_layout
+    );
+    DescriptorSet(const DescriptorSet&) = default;
+    DescriptorSet(DescriptorSet&& other) noexcept;
+    ~DescriptorSet() noexcept;
+
+    DescriptorSet& operator=(const DescriptorSet&) = default;
+    DescriptorSet& operator=(DescriptorSet&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_descriptor_set == VK_NULL_HANDLE;
+    }
+
+    inline const VkDescriptorPool descriptor_pool() const noexcept {
+        return m_descriptor_pool;
+    }
+
+    inline VkDescriptorPool descriptor_pool() noexcept {
+        return m_descriptor_pool;
+    }
+
+    inline operator VkDescriptorSet() noexcept {
+        return m_descriptor_set;
+    }
+
+    inline VkDescriptorSet descriptor_set() noexcept {
+        return m_descriptor_set;
+    }
+
+    inline void swap(DescriptorSet& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_descriptor_pool, other.m_descriptor_pool);
+        swap(m_descriptor_set, other.m_descriptor_set);
+    }
+
+    friend inline void swap(DescriptorSet& descriptor_set_0, DescriptorSet& descriptor_set_1) noexcept {
+        descriptor_set_0.swap(descriptor_set_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkDescriptorPool m_descriptor_pool = VK_NULL_HANDLE;
+    VkDescriptorSet m_descriptor_set = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/DescriptorSetLayout.cpp

@@ -0,0 +1,67 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/DescriptorSetLayout.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+DescriptorSetLayout::DescriptorSetLayout() noexcept {
+}
+
+DescriptorSetLayout::DescriptorSetLayout(Context& context, Array<const VkDescriptorSetLayoutBinding> bindings)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    VkDescriptorSetLayoutCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
+        .bindingCount = uint32_t(bindings.size()),
+        .pBindings = bindings.data(),
+    };
+    if(vkCreateDescriptorSetLayout(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_descriptor_set_layout
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create descriptor set layout");
+}
+
+DescriptorSetLayout::DescriptorSetLayout(DescriptorSetLayout&& other) noexcept
+{
+    swap(other);
+}
+
+DescriptorSetLayout::~DescriptorSetLayout() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+DescriptorSetLayout& DescriptorSetLayout::operator=(DescriptorSetLayout&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void DescriptorSetLayout::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyDescriptorSetLayout(
+        m_context->device(),
+        m_descriptor_set_layout,
+        nullptr
+    );
+
+    m_descriptor_set_layout = nullptr;
+}
+
+
+}

src/vk/DescriptorSetLayout.h

@@ -0,0 +1,59 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/utils.h>
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class DescriptorSetLayout: public Wrapper {
+public:
+    DescriptorSetLayout() noexcept;
+    DescriptorSetLayout(Context& context, Array<const VkDescriptorSetLayoutBinding> bindings);
+    DescriptorSetLayout(const DescriptorSetLayout&) = default;
+    DescriptorSetLayout(DescriptorSetLayout&& other) noexcept;
+    ~DescriptorSetLayout() noexcept;
+
+    DescriptorSetLayout& operator=(const DescriptorSetLayout&) = default;
+    DescriptorSetLayout& operator=(DescriptorSetLayout&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_descriptor_set_layout == VK_NULL_HANDLE;
+    }
+
+    inline operator VkDescriptorSetLayout() noexcept {
+        return m_descriptor_set_layout;
+    }
+
+    inline VkDescriptorSetLayout descriptor_set_layout() noexcept {
+        return m_descriptor_set_layout;
+    }
+
+    inline void swap(DescriptorSetLayout& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_descriptor_set_layout, other.m_descriptor_set_layout);
+    }
+
+    friend inline void swap(DescriptorSetLayout& descriptor_set_layout_0, DescriptorSetLayout& descriptor_set_layout_1) noexcept {
+        descriptor_set_layout_0.swap(descriptor_set_layout_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkDescriptorSetLayout m_descriptor_set_layout = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/Fence.cpp

@@ -0,0 +1,123 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/Fence.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+Fence::Fence() noexcept {
+}
+
+Fence::Fence(Context& context, VkFenceCreateFlags flags)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    VkFenceCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
+        .flags = flags,
+    };
+    if(vkCreateFence(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_fence
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create fence");
+}
+
+Fence::Fence(Fence&& other) noexcept
+{
+    swap(other);
+}
+
+Fence::~Fence() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+Fence& Fence::operator=(Fence&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+VkResult Fence::get_status() const {
+    assert(m_context);
+    assert(!is_null());
+
+    VkResult result = vkGetFenceStatus(
+        m_context->device(),
+        m_fence
+    );
+
+    if(result < 0)
+        throw std::runtime_error("failed to get fence status");
+
+    return result;
+}
+
+void Fence::reset() {
+    assert(m_context);
+    assert(!is_null());
+
+    if(vkResetFences(
+        m_context->device(),
+        1,
+        &m_fence
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to reset fence");
+}
+
+void Fence::wait(uint64_t timeout) const {
+    assert(m_context);
+    assert(!is_null());
+
+    wait_for_fences(
+        m_context->device(),
+        ArrayView<VkFence>(1, const_cast<VkFence*>(&m_fence)),
+        true,
+        timeout
+    );
+}
+
+
+void Fence::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyFence(
+        m_context->device(),
+        m_fence,
+        nullptr
+    );
+
+    m_fence = nullptr;
+}
+
+
+void wait_for_fences(VkDevice device, ArrayView<VkFence> fences, bool wait_all, uint64_t timeout) {
+    assert(fences.is_dense());
+
+    if(fences.size() == 0)
+        return;
+
+    if(vkWaitForFences(
+        device,
+        fences.size(),
+        fences.data(),
+        wait_all,
+        timeout
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to wait for fences");
+}
+
+
+}

src/vk/Fence.h

@@ -0,0 +1,65 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/ArrayView.h>
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class Fence: public Wrapper {
+public:
+    Fence() noexcept;
+    Fence(Context& context, VkFenceCreateFlags flags=0);
+    Fence(const Fence&) = default;
+    Fence(Fence&& other) noexcept;
+    ~Fence() noexcept;
+
+    Fence& operator=(const Fence&) = default;
+    Fence& operator=(Fence&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_fence == VK_NULL_HANDLE;
+    }
+
+    inline operator VkFence() noexcept {
+        return m_fence;
+    }
+
+    inline VkFence fence() noexcept {
+        return m_fence;
+    }
+
+    VkResult get_status() const;
+    void reset();
+    void wait(uint64_t timeout=UINT64_MAX) const;
+
+    inline void swap(Fence& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_fence, other.m_fence);
+    }
+
+    friend inline void swap(Fence& fence_0, Fence& fence_1) noexcept {
+        fence_0.swap(fence_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkFence m_fence = VK_NULL_HANDLE;
+};
+
+void wait_for_fences(VkDevice device, ArrayView<VkFence> fences, bool wait_all=true, uint64_t timeout=UINT64_MAX);
+
+
+}

src/vk/Framebuffer.cpp

@@ -0,0 +1,86 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/Framebuffer.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+Framebuffer::Framebuffer() noexcept {
+}
+
+Framebuffer::Framebuffer(
+    Context& context,
+    VkRenderPass render_pass,
+    Array<VkImageView> attachments,
+    uint32_t width, uint32_t height, uint32_t layers
+)
+    : Wrapper(context)
+{
+    assert(m_context);
+    assert(render_pass);
+
+    VkFramebufferCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,
+        .renderPass = render_pass,
+        .attachmentCount = uint32_t(attachments.size()),
+        .pAttachments = attachments.data(),
+        .width = width,
+        .height = height,
+        .layers = layers,
+    };
+    if(vkCreateFramebuffer(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_framebuffer
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create framebuffer");
+}
+
+Framebuffer::Framebuffer(
+    Context& context,
+    VkRenderPass render_pass,
+    Array<VkImageView> attachments,
+    VkExtent2D extent, uint32_t layers
+)
+    : Framebuffer(context, render_pass, attachments, extent.width, extent.height, layers)
+{}
+
+Framebuffer::Framebuffer(Framebuffer&& other) noexcept
+{
+    swap(other);
+}
+
+Framebuffer::~Framebuffer() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+Framebuffer& Framebuffer::operator=(Framebuffer&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void Framebuffer::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyFramebuffer(
+        m_context->device(),
+        m_framebuffer,
+        nullptr
+    );
+
+    m_framebuffer = nullptr;
+}
+
+
+}

src/vk/Framebuffer.h

@@ -0,0 +1,70 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/utils.h>
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class Framebuffer: public Wrapper {
+public:
+    Framebuffer() noexcept;
+    Framebuffer(
+        Context& context,
+        VkRenderPass render_pass,
+        Array<VkImageView> attachments,
+        uint32_t width, uint32_t height, uint32_t layers=1
+    );
+    Framebuffer(
+        Context& context,
+        VkRenderPass render_pass,
+        Array<VkImageView> attachments,
+        VkExtent2D extent, uint32_t layers=1
+    );
+    Framebuffer(const Framebuffer&) = default;
+    Framebuffer(Framebuffer&& other) noexcept;
+    ~Framebuffer() noexcept;
+
+    Framebuffer& operator=(const Framebuffer&) = default;
+    Framebuffer& operator=(Framebuffer&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_framebuffer == VK_NULL_HANDLE;
+    }
+
+    inline operator VkFramebuffer() noexcept {
+        return m_framebuffer;
+    }
+
+    inline VkFramebuffer framebuffer() noexcept {
+        return m_framebuffer;
+    }
+
+    inline void swap(Framebuffer& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_framebuffer, other.m_framebuffer);
+    }
+
+    friend inline void swap(Framebuffer& framebuffer_0, Framebuffer& framebuffer_1) noexcept {
+        framebuffer_0.swap(framebuffer_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkFramebuffer m_framebuffer = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/Image.cpp

@@ -0,0 +1,124 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/Image.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+Image::Image() noexcept {
+}
+
+Image::Image(Context& context, VkImageCreateInfo create_info)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    if(vkCreateImage(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_image
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create image");
+}
+
+Image::Image(Context& context, VkImageCreateInfo create_info, VkMemoryPropertyFlags memory_properties)
+    : Image(context, create_info)
+{
+    allocate_and_bind_memory(memory_properties);
+}
+
+Image::Image(Image&& other) noexcept
+{
+    swap(other);
+}
+
+Image::~Image() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+Image& Image::operator=(Image&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+VkMemoryRequirements Image::memory_requirements() const noexcept {
+    assert(!is_null());
+    assert(*m_context);
+
+    VkMemoryRequirements memory_requirements;
+    vkGetImageMemoryRequirements(
+        m_context->device(),
+        m_image,
+        &memory_requirements
+    );
+
+    return memory_requirements;
+}
+
+
+void Image::bind_memory(const MemoryBlock& memory_block, VkDeviceSize offset) {
+    assert(!is_null());
+    assert(*m_context);
+    assert(memory_block);
+
+    // m_memory = std::move(memory_block);
+    if(vkBindImageMemory(
+        m_context->device(),
+        m_image,
+        memory_block.device_memory(),
+        memory_block.offset() + offset
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to bind image memory");
+}
+
+void Image::bind_memory(MemoryBlock&& memory_block) {
+    bind_memory(memory_block);
+    m_memory = std::move(memory_block);
+}
+
+void Image::allocate_and_bind_memory(VkMemoryPropertyFlags memory_properties) {
+    assert(!is_null());
+    assert(*m_context);
+
+    const auto memory_requirements = this->memory_requirements();
+    m_memory = m_context->allocator().allocate(
+        memory_requirements.size,
+        memory_requirements.memoryTypeBits,
+        memory_properties
+    );
+
+    bind_memory(m_memory);
+}
+
+
+void Image::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    if(m_memory) {
+        m_memory.free();
+        m_memory = MemoryBlock();
+    }
+
+    vkDestroyImage(
+        m_context->device(),
+        m_image,
+        nullptr
+    );
+
+    m_context = nullptr;
+    m_image = VK_NULL_HANDLE;
+}
+
+
+}

src/vk/Image.h

@@ -0,0 +1,66 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+#include <vk/Memory.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class Image: public Wrapper {
+public:
+    Image() noexcept;
+    Image(Context& context, VkImageCreateInfo create_info);
+    Image(Context& context, VkImageCreateInfo create_info, VkMemoryPropertyFlags memory_properties);
+    Image(const Image&) = default;
+    Image(Image&& other) noexcept;
+    ~Image() noexcept;
+
+    Image& operator=(const Image&) = default;
+    Image& operator=(Image&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_image == VK_NULL_HANDLE;
+    }
+
+    inline operator VkImage() noexcept {
+        return m_image;
+    }
+
+    inline VkImage image() noexcept {
+        return m_image;
+    }
+
+    VkMemoryRequirements memory_requirements() const noexcept;
+
+    void bind_memory(const MemoryBlock& memory_block, VkDeviceSize offset=0);
+    void bind_memory(MemoryBlock&& memory_block);
+    void allocate_and_bind_memory(VkMemoryPropertyFlags memory_properties);
+
+    inline void swap(Image& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_image, other.m_image);
+    }
+
+    friend inline void swap(Image& image_0, Image& image_1) noexcept {
+        image_0.swap(image_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkImage m_image = VK_NULL_HANDLE;
+    MemoryBlock m_memory;
+};
+
+
+}

src/vk/ImageView.cpp

@@ -0,0 +1,62 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/ImageView.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+ImageView::ImageView() noexcept {
+}
+
+ImageView::ImageView(Context& context, const VkImageViewCreateInfo& create_info)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    if(vkCreateImageView(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_image_view
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create image view");
+}
+
+ImageView::ImageView(ImageView&& other) noexcept
+{
+    swap(other);
+}
+
+ImageView::~ImageView() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+ImageView& ImageView::operator=(ImageView&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void ImageView::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyImageView(
+        m_context->device(),
+        m_image_view,
+        nullptr
+    );
+
+    m_image_view = nullptr;
+}
+
+
+}

src/vk/ImageView.h

@@ -0,0 +1,57 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class ImageView: public Wrapper {
+public:
+    ImageView() noexcept;
+    ImageView(Context& context, const VkImageViewCreateInfo& create_info);
+    ImageView(const ImageView&) = default;
+    ImageView(ImageView&& other) noexcept;
+    ~ImageView() noexcept;
+
+    ImageView& operator=(const ImageView&) = default;
+    ImageView& operator=(ImageView&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_image_view == VK_NULL_HANDLE;
+    }
+
+    inline operator VkImageView() noexcept {
+        return m_image_view;
+    }
+
+    inline VkImageView image_view() noexcept {
+        return m_image_view;
+    }
+
+    inline void swap(ImageView& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_image_view, other.m_image_view);
+    }
+
+    friend inline void swap(ImageView& image_view_0, ImageView& image_view_1) noexcept {
+        image_view_0.swap(image_view_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkImageView m_image_view = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/Memory.cpp

@@ -0,0 +1,376 @@
+// Copyright 2022 Simon Boyé
+#include <vk/Memory.h>
+#include <vk/Context.h>
+
+#include <stdexcept>
+#include <algorithm>
+#include <cassert>
+
+
+namespace vk {
+
+
+MemoryBlock::MemoryBlock() noexcept {
+}
+
+MemoryBlock::MemoryBlock(
+    VkDeviceMemory device_memory,
+    VkDeviceSize size,
+    VkDeviceSize offset,
+    MemoryPage* memory_page,
+    uint32_t memory_type
+) noexcept
+    : m_size(size)
+    , m_offset(offset)
+    , m_device_memory(device_memory)
+    , m_memory_page(memory_page)
+    , m_memory_type(memory_type)
+{}
+
+MemoryBlock::MemoryBlock(MemoryBlock&& other) noexcept
+    : m_size(other.m_size)
+    , m_offset(other.m_offset)
+    , m_device_memory(other.m_device_memory)
+    , m_memory_page(other.m_memory_page)
+    , m_memory_type(other.m_memory_type)
+{
+    other.m_size = 0;
+    other.m_offset = 0;
+    other.m_device_memory = VK_NULL_HANDLE;
+    other.m_memory_page = nullptr;
+    other.m_memory_type = 0;
+}
+
+MemoryBlock::~MemoryBlock() noexcept {
+    if(!is_null())
+        free();
+}
+
+MemoryBlock& MemoryBlock::operator=(MemoryBlock&& other) noexcept {
+    if(&other != this) {
+        using std::swap;
+        swap(m_size, other.m_size);
+        swap(m_offset, other.m_offset);
+        swap(m_device_memory, other.m_device_memory);
+        swap(m_memory_page, other.m_memory_page);
+        swap(m_memory_type, other.m_memory_type);
+    }
+    return *this;
+}
+
+
+VkMemoryType MemoryBlock::memory_type_info(Context& context) const noexcept {
+    assert(!is_null());
+    assert(context);
+
+    return context.memory_properties().memoryTypes[m_memory_type];
+}
+
+
+void MemoryBlock::free() noexcept {
+    assert(!is_null());
+
+    m_memory_page->p_free(*this);
+
+    m_size = 0;
+    m_offset = 0;
+    m_device_memory = VK_NULL_HANDLE;
+    m_memory_page = nullptr;
+    m_memory_type = 0;
+}
+
+
+Byte* MemoryBlock::map(Context& context) {
+    return map(context, 0, m_size);
+}
+
+Byte* MemoryBlock::map(Context& context, VkDeviceSize offset, VkDeviceSize size) {
+    assert(!is_null());
+    assert(context);
+    assert(offset + size <= m_size);
+
+    void* ptr;
+    if(vkMapMemory(
+        context.device(),
+        m_device_memory,
+        m_offset + offset,
+        size,
+        0,
+        &ptr
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to map memory");
+
+    return reinterpret_cast<Byte*>(ptr);
+}
+
+void MemoryBlock::unmap(Context& context) noexcept {
+    assert(!is_null());
+
+    vkUnmapMemory(
+        context.device(),
+        m_device_memory
+    );
+}
+
+
+void MemoryBlock::flush(Context& context) {
+    assert(!is_null());
+
+    VkMappedMemoryRange range {
+        .sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
+        .memory = m_device_memory,
+        .offset = m_offset,
+        .size = m_size,
+    };
+    if(vkFlushMappedMemoryRanges(
+        context.device(),
+        1,
+        &range
+    ) != VK_SUCCESS)
+        std::runtime_error("failed to flush memory");
+}
+
+void MemoryBlock::invalidate(Context& context) {
+    assert(!is_null());
+
+    VkMappedMemoryRange range {
+        .sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
+        .memory = m_device_memory,
+        .offset = m_offset,
+        .size = m_size,
+    };
+    if(vkInvalidateMappedMemoryRanges(
+        context.device(),
+        1,
+        &range
+    ) != VK_SUCCESS)
+        std::runtime_error("failed to invalidate memory");
+}
+
+
+
+
+MemoryPage::MemoryPage(
+    VkDeviceSize size,
+    VkDeviceMemory device_memory,
+    uint32_t memory_type
+) noexcept
+    : m_size(size)
+    , m_device_memory(device_memory)
+    , m_blocks{
+        Block{ 0, true },
+        Block{ m_size, false },
+    }
+    , m_memory_type(memory_type)
+{}
+
+MemoryPage::MemoryPage(MemoryPage&&) = default;
+MemoryPage::~MemoryPage() = default;
+
+MemoryPage& MemoryPage::operator=(MemoryPage&&) = default;
+
+MemoryBlock MemoryPage::allocate(VkDeviceSize size) noexcept {
+    const auto block_it = find_free_block(size);
+    if(block_it == m_blocks.end())
+        return MemoryBlock();
+
+    const auto offset = block_it->offset;
+
+    block_it[0].is_free = false;
+    if (block_it[0].offset != block_it[1].offset) {
+        m_blocks.emplace(std::next(block_it), Block{
+            block_it[0].offset + size, true
+        });
+    }
+
+    return MemoryBlock(m_device_memory, size, offset, this, m_memory_type);
+}
+
+void MemoryPage::p_free(MemoryBlock& block) noexcept {
+    assert(block.device_memory() == m_device_memory);
+
+    const auto offset = block.offset();
+    const auto block_it = std::lower_bound(
+        m_blocks.begin(),
+        m_blocks.end(),
+        Block{ offset, false },
+        [] (const Block& lhs, const Block& rhs) {
+            return lhs.offset < rhs.offset;
+        }
+    );
+    assert(block_it != m_blocks.end() && block_it->offset == offset);
+
+    // Merge with next block if also free
+    if (block_it[1].is_free) {
+        m_blocks.erase(std::next(block_it));
+    }
+
+    // Merge with previous block if also free
+    if (block_it != m_blocks.begin() && block_it[-1].is_free) {
+        m_blocks.erase(block_it);
+    }
+    else {
+        block_it->is_free = true;
+    }
+}
+
+void MemoryPage::free_device_memory(Context& context) noexcept {
+    vkFreeMemory(
+        context.device(),
+        m_device_memory,
+        nullptr
+    );
+
+    m_size = 0;
+    m_device_memory = VK_NULL_HANDLE;
+    m_blocks.clear();
+    m_memory_type = 0;
+}
+
+
+MemoryPage::BlockList::iterator MemoryPage::find_free_block(VkDeviceSize size) {
+    const auto block_end = std::prev(m_blocks.end());
+    for(auto block_it = m_blocks.begin(); block_it != block_end; ++block_it) {
+        if(block_it[0].is_free && block_it[1].offset - block_it[0].offset >= size)
+            return block_it;
+    }
+
+    return m_blocks.end();
+}
+
+
+
+
+Allocator::Allocator(Context* context) noexcept
+    : m_context(context)
+    , m_memory_properties{}
+    , m_page_map{}
+{
+    vkGetPhysicalDeviceMemoryProperties(
+        m_context->physical_device(),
+        &m_memory_properties
+    );
+
+    for(auto& next_page_size: m_next_page_sizes)
+        next_page_size = BasePageSize;
+}
+
+Allocator::~Allocator() = default;
+
+
+int32_t Allocator::find_memory_type(
+    uint32_t type_mask,
+    VkMemoryPropertyFlags required_properties
+) noexcept {
+    for(uint32_t type_index = 0;
+        type_index < m_memory_properties.memoryTypeCount;
+        type_index += 1
+    ) {
+        if((type_mask & (1 << type_index)) == 0)
+            continue;
+
+        const auto memory_properties =
+            m_memory_properties.memoryTypes[type_index].propertyFlags;
+        if((memory_properties & required_properties) == required_properties)
+            return type_index;
+    }
+
+    return -1;
+}
+
+int32_t Allocator::find_memory_type(
+    uint32_t type_mask,
+    std::initializer_list<VkMemoryPropertyFlags> properties_list
+) noexcept {
+    for(const auto& properties: properties_list) {
+        const auto memory_type = find_memory_type(type_mask, properties);
+        if(memory_type >= 0)
+            return memory_type;
+    }
+
+    return -1;
+}
+
+MemoryBlock Allocator::allocate(
+    VkDeviceSize size,
+    uint32_t memory_type
+) noexcept {
+    assert(memory_type < VK_MAX_MEMORY_TYPES);
+
+    auto& pages = m_page_map[memory_type];
+
+    for(auto& page: pages) {
+        auto block = page.allocate(size);
+        if(block)
+            return block;
+    }
+
+    const VkDeviceSize new_page_size = std::max(
+        size,
+        m_next_page_sizes[memory_type]
+    );
+
+    VkMemoryAllocateInfo allocate_info {
+        .sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
+        .allocationSize = new_page_size,
+        .memoryTypeIndex = memory_type,
+    };
+    VkDeviceMemory device_memory;
+    vkAllocateMemory(
+        m_context->device(),
+        &allocate_info,
+        nullptr,
+        &device_memory
+    );
+
+    pages.emplace_back(
+        new_page_size,
+        device_memory,
+        memory_type
+    );
+
+    if(new_page_size == m_next_page_sizes[memory_type])
+        m_next_page_sizes[memory_type] *= 2;
+
+    return pages.back().allocate(size);
+}
+
+MemoryBlock Allocator::allocate(
+    VkDeviceSize size,
+    uint32_t type_mask,
+    VkMemoryPropertyFlags properties
+) noexcept {
+    const auto memory_type = find_memory_type(
+        type_mask,
+        properties
+    );
+    if(memory_type < 0)
+        return MemoryBlock();
+
+    return allocate(size, uint32_t(memory_type));
+}
+
+MemoryBlock Allocator::allocate(
+    VkDeviceSize size,
+    uint32_t type_mask,
+    std::initializer_list<VkMemoryPropertyFlags> properties_list
+) noexcept {
+    const auto memory_type = find_memory_type(
+        type_mask,
+        properties_list
+    );
+    if(memory_type < 0)
+        return MemoryBlock();
+
+    return allocate(size, uint32_t(memory_type));
+}
+
+void Allocator::free_all_pages() noexcept {
+    for(uint32_t memory_type = 0; memory_type < VK_MAX_MEMORY_TYPES; memory_type += 1) {
+        for(auto& page: m_page_map[memory_type])
+            page.free_device_memory(*m_context);
+    }
+}
+
+
+}

src/vk/Memory.h

@@ -0,0 +1,188 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/types.h>
+
+#include <vk/forward.h>
+
+#include <vulkan/vulkan.h>
+
+#include <memory>
+#include <vector>
+
+
+namespace vk {
+
+
+class MemoryBlock {
+public:
+    MemoryBlock() noexcept;
+    MemoryBlock(
+        VkDeviceMemory device_memory,
+        VkDeviceSize size,
+        VkDeviceSize offset,
+        MemoryPage* memory_page,
+        uint32_t memory_type
+    ) noexcept;
+    MemoryBlock(const MemoryBlock&) = delete;
+    MemoryBlock(MemoryBlock&& other) noexcept;
+    ~MemoryBlock() noexcept;
+
+    MemoryBlock& operator=(const MemoryBlock&) = delete;
+    MemoryBlock& operator=(MemoryBlock&& other) noexcept;
+
+    inline explicit operator bool() const noexcept {
+        return m_size != 0;
+    }
+
+    inline bool is_null() const noexcept {
+        return m_size == 0;
+    }
+
+    inline VkDeviceSize size() const noexcept {
+        return m_size;
+    }
+
+    inline VkDeviceSize offset() const noexcept {
+        return m_offset;
+    }
+
+    inline VkDeviceMemory device_memory() const noexcept {
+        return m_device_memory;
+    }
+
+    inline uint32_t memory_type() const noexcept {
+        return m_memory_type;
+    }
+
+    inline MemoryPage* memory_page() const noexcept {
+        return m_memory_page;
+    }
+
+    VkMemoryType memory_type_info(Context& context) const noexcept;
+
+    void free() noexcept;
+
+    Byte* map(Context& context);
+    Byte* map(Context& context, VkDeviceSize offset, VkDeviceSize size);
+    void unmap(Context& context) noexcept;
+
+    void flush(Context& context);
+    void invalidate(Context& context);
+
+private:
+    VkDeviceSize m_size = 0;
+    VkDeviceSize m_offset = 0;
+    VkDeviceMemory m_device_memory = VK_NULL_HANDLE;
+    MemoryPage* m_memory_page = nullptr;
+    uint32_t m_memory_type = 0;
+};
+
+
+class MemoryPage {
+public:
+    MemoryPage(
+        VkDeviceSize size,
+        VkDeviceMemory device_memory,
+        uint32_t memory_type
+    ) noexcept;
+    MemoryPage(const MemoryPage&) = delete;
+    MemoryPage(MemoryPage&&);
+    ~MemoryPage();
+
+    MemoryPage& operator=(const MemoryPage&) = delete;
+    MemoryPage& operator=(MemoryPage&&);
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_size == 0;
+    }
+
+    inline VkDeviceSize size() const noexcept {
+        return m_size;
+    }
+
+    inline VkDeviceMemory device_memory() const noexcept {
+        return m_device_memory;
+    }
+
+    inline uint32_t memory_type() const noexcept {
+        return m_memory_type;
+    }
+
+    MemoryBlock allocate(VkDeviceSize size) noexcept;
+    void p_free(MemoryBlock& block) noexcept;
+
+    void free_device_memory(Context& context) noexcept;
+
+private:
+    struct Block {
+        VkDeviceSize offset;
+        bool is_free;
+    };
+    using BlockList = std::vector<Block>;
+
+private:
+    BlockList::iterator find_free_block(VkDeviceSize size);
+
+private:
+    VkDeviceSize m_size = 0;
+    VkDeviceMemory m_device_memory = VK_NULL_HANDLE;
+    BlockList m_blocks;
+    uint32_t m_memory_type = 0;
+};
+
+
+class Allocator {
+public:
+    Allocator(Context* context) noexcept;
+    Allocator(const Allocator&) = delete;
+    Allocator(Allocator&&) = delete;
+    ~Allocator();
+
+    Allocator& operator=(const Allocator&) = delete;
+    Allocator& operator=(Allocator&) = delete;
+
+    int32_t find_memory_type(
+        uint32_t type_mask,
+        VkMemoryPropertyFlags properties
+    ) noexcept;
+    int32_t find_memory_type(
+        uint32_t type_mask,
+        std::initializer_list<VkMemoryPropertyFlags> properties_list
+    ) noexcept;
+
+    MemoryBlock allocate(
+        VkDeviceSize size,
+        uint32_t memory_type
+    ) noexcept;
+    MemoryBlock allocate(
+        VkDeviceSize size,
+        uint32_t type_mask,
+        VkMemoryPropertyFlags properties
+    ) noexcept;
+    MemoryBlock allocate(
+        VkDeviceSize size,
+        uint32_t type_mask,
+        std::initializer_list<VkMemoryPropertyFlags> properties_list
+    ) noexcept;
+
+    void free_all_pages() noexcept;
+
+private:
+    using PageList = std::vector<MemoryPage>;
+
+    static constexpr VkDeviceSize BasePageSize = 1 << 24;
+
+private:
+    Context* m_context = nullptr;
+    VkPhysicalDeviceMemoryProperties m_memory_properties;
+    PageList m_page_map[VK_MAX_MEMORY_TYPES];
+    VkDeviceSize m_next_page_sizes[VK_MAX_MEMORY_TYPES];
+};
+
+
+}

src/vk/Pipeline.cpp

@@ -0,0 +1,71 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/Pipeline.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+Pipeline::Pipeline() noexcept {
+}
+
+Pipeline::Pipeline(Context& context, VkPipeline pipeline)
+    : Wrapper(context)
+    , m_pipeline(pipeline)
+{
+    assert(m_context);
+    assert(m_pipeline != VK_NULL_HANDLE);
+}
+
+Pipeline::Pipeline(Context& context, VkGraphicsPipelineCreateInfo create_info)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    if(vkCreateGraphicsPipelines(
+        m_context->device(),
+        VK_NULL_HANDLE,
+        1, &create_info,
+        nullptr,
+        &m_pipeline
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create graphic pipeline");
+}
+
+Pipeline::Pipeline(Pipeline&& other) noexcept
+{
+    swap(other);
+}
+
+Pipeline::~Pipeline() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+Pipeline& Pipeline::operator=(Pipeline&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void Pipeline::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyPipeline(
+        m_context->device(),
+        m_pipeline,
+        nullptr
+    );
+
+    m_pipeline = nullptr;
+}
+
+
+}

src/vk/Pipeline.h

@@ -0,0 +1,58 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class Pipeline: public Wrapper {
+public:
+    Pipeline() noexcept;
+    Pipeline(Context& context, VkPipeline pipeline);
+    Pipeline(Context& context, VkGraphicsPipelineCreateInfo create_info);
+    Pipeline(const Pipeline&) = default;
+    Pipeline(Pipeline&& other) noexcept;
+    ~Pipeline() noexcept;
+
+    Pipeline& operator=(const Pipeline&) = default;
+    Pipeline& operator=(Pipeline&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_pipeline == VK_NULL_HANDLE;
+    }
+
+    inline operator VkPipeline() noexcept {
+        return m_pipeline;
+    }
+
+    inline VkPipeline pipeline() noexcept {
+        return m_pipeline;
+    }
+
+    inline void swap(Pipeline& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_pipeline, other.m_pipeline);
+    }
+
+    friend inline void swap(Pipeline& pipeline_0, Pipeline& pipeline_1) noexcept {
+        pipeline_0.swap(pipeline_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkPipeline m_pipeline = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/PipelineLayout.cpp

@@ -0,0 +1,73 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/PipelineLayout.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+PipelineLayout::PipelineLayout() noexcept {
+}
+
+PipelineLayout::PipelineLayout(
+    Context& context,
+    Array<const VkDescriptorSetLayout> set_layouts,
+    Array<const VkPushConstantRange> push_constant_ranges
+)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    VkPipelineLayoutCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
+        .setLayoutCount = uint32_t(set_layouts.size()),
+        .pSetLayouts = set_layouts.data(),
+        .pushConstantRangeCount = uint32_t(push_constant_ranges.size()),
+        .pPushConstantRanges = push_constant_ranges.data(),
+    };
+    if(vkCreatePipelineLayout(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_pipeline_layout
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create pipeline layout");
+}
+
+PipelineLayout::PipelineLayout(PipelineLayout&& other) noexcept
+{
+    swap(other);
+}
+
+PipelineLayout::~PipelineLayout() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+PipelineLayout& PipelineLayout::operator=(PipelineLayout&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void PipelineLayout::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyPipelineLayout(
+        m_context->device(),
+        m_pipeline_layout,
+        nullptr
+    );
+
+    m_pipeline_layout = nullptr;
+}
+
+
+}

src/vk/PipelineLayout.h

@@ -0,0 +1,63 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/utils.h>
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class PipelineLayout: public Wrapper {
+public:
+    PipelineLayout() noexcept;
+    PipelineLayout(
+        Context& context,
+        Array<const VkDescriptorSetLayout> set_layouts,
+        Array<const VkPushConstantRange> push_constant_ranges={}
+    );
+    PipelineLayout(const PipelineLayout&) = default;
+    PipelineLayout(PipelineLayout&& other) noexcept;
+    ~PipelineLayout() noexcept;
+
+    PipelineLayout& operator=(const PipelineLayout&) = default;
+    PipelineLayout& operator=(PipelineLayout&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_pipeline_layout == VK_NULL_HANDLE;
+    }
+
+    inline operator VkPipelineLayout() noexcept {
+        return m_pipeline_layout;
+    }
+
+    inline VkPipelineLayout pipeline_layout() noexcept {
+        return m_pipeline_layout;
+    }
+
+    inline void swap(PipelineLayout& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_pipeline_layout, other.m_pipeline_layout);
+    }
+
+    friend inline void swap(PipelineLayout& pipeline_layout_0, PipelineLayout& pipeline_layout_1) noexcept {
+        pipeline_layout_0.swap(pipeline_layout_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkPipelineLayout m_pipeline_layout = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/RenderPass.cpp

@@ -0,0 +1,63 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/RenderPass.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+RenderPass::RenderPass() noexcept {
+}
+
+RenderPass::RenderPass(Context& context, const VkRenderPassCreateInfo& create_info)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    if(vkCreateRenderPass(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_render_pass
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create render pass");
+}
+
+RenderPass::RenderPass(RenderPass&& other) noexcept
+{
+    swap(other);
+}
+
+RenderPass::~RenderPass() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+RenderPass& RenderPass::operator=(RenderPass&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void RenderPass::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyRenderPass(
+        m_context->device(),
+        m_render_pass,
+        nullptr
+    );
+
+    m_render_pass = nullptr;
+}
+
+
+
+}

src/vk/RenderPass.h

@@ -0,0 +1,57 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class RenderPass: public Wrapper {
+public:
+    RenderPass() noexcept;
+    RenderPass(Context& context, const VkRenderPassCreateInfo& create_info);
+    RenderPass(const RenderPass&) = default;
+    RenderPass(RenderPass&& other) noexcept;
+    ~RenderPass() noexcept;
+
+    RenderPass& operator=(const RenderPass&) = default;
+    RenderPass& operator=(RenderPass&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_render_pass == VK_NULL_HANDLE;
+    }
+
+    inline operator VkRenderPass() noexcept {
+        return m_render_pass;
+    }
+
+    inline VkRenderPass render_pass() noexcept {
+        return m_render_pass;
+    }
+
+    inline void swap(RenderPass& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_render_pass, other.m_render_pass);
+    }
+
+    friend inline void swap(RenderPass& render_pass_0, RenderPass& render_pass_1) noexcept {
+        render_pass_0.swap(render_pass_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkRenderPass m_render_pass = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/Semaphore.cpp

@@ -0,0 +1,65 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/Semaphore.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+Semaphore::Semaphore() noexcept {
+}
+
+Semaphore::Semaphore(Context& context)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    VkSemaphoreCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
+    };
+    if(vkCreateSemaphore(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_semaphore
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create semaphore");
+}
+
+Semaphore::Semaphore(Semaphore&& other) noexcept
+{
+    swap(other);
+}
+
+Semaphore::~Semaphore() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+Semaphore& Semaphore::operator=(Semaphore&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void Semaphore::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroySemaphore(
+        m_context->device(),
+        m_semaphore,
+        nullptr
+    );
+
+    m_semaphore = nullptr;
+}
+
+
+}

src/vk/Semaphore.h

@@ -0,0 +1,57 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class Semaphore: public Wrapper {
+public:
+    Semaphore() noexcept;
+    Semaphore(Context& context);
+    Semaphore(const Semaphore&) = default;
+    Semaphore(Semaphore&& other) noexcept;
+    ~Semaphore() noexcept;
+
+    Semaphore& operator=(const Semaphore&) = default;
+    Semaphore& operator=(Semaphore&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_semaphore == VK_NULL_HANDLE;
+    }
+
+    inline operator VkSemaphore() noexcept {
+        return m_semaphore;
+    }
+
+    inline VkSemaphore semaphore() noexcept {
+        return m_semaphore;
+    }
+
+    inline void swap(Semaphore& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_semaphore, other.m_semaphore);
+    }
+
+    friend inline void swap(Semaphore& semaphore_0, Semaphore& semaphore_1) noexcept {
+        semaphore_0.swap(semaphore_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkSemaphore m_semaphore = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/ShaderModule.cpp

@@ -0,0 +1,71 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/ShaderModule.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+ShaderModule::ShaderModule() noexcept {
+}
+
+ShaderModule::ShaderModule(Context& context, const std::vector<char>& code)
+    : Wrapper(context)
+{
+    assert(m_context);
+
+    VkShaderModuleCreateInfo create_info {
+        .sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO,
+        .codeSize = code.size(),
+        .pCode = (uint32_t*)code.data(),
+    };
+    if(vkCreateShaderModule(
+        context.device(),
+        &create_info,
+        nullptr,
+        &m_shader_module
+    ) != VK_SUCCESS)
+        throw std::runtime_error("failed to create shader module");
+}
+
+ShaderModule::ShaderModule(Context& context, const char* path)
+    : ShaderModule(context, read_binary_file(path))
+{}
+
+ShaderModule::ShaderModule(ShaderModule&& other) noexcept
+{
+    swap(other);
+}
+
+ShaderModule::~ShaderModule() noexcept {
+    if(!is_null())
+        destroy();
+}
+
+
+ShaderModule& ShaderModule::operator=(ShaderModule&& other) noexcept {
+    swap(other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void ShaderModule::destroy() noexcept {
+    assert(!is_null());
+    assert(m_context);
+
+    vkDestroyShaderModule(
+        m_context->device(),
+        m_shader_module,
+        nullptr
+    );
+
+    m_shader_module = nullptr;
+}
+
+
+}

src/vk/ShaderModule.h

@@ -0,0 +1,60 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+#include <vk/Wrapper.h>
+
+#include <vulkan/vulkan.h>
+
+#include <vector>
+
+
+namespace vk {
+
+
+class ShaderModule: public Wrapper {
+public:
+    ShaderModule() noexcept;
+    ShaderModule(Context& context, const std::vector<char>& code);
+    ShaderModule(Context& context, const char* path);
+    ShaderModule(const ShaderModule&) = default;
+    ShaderModule(ShaderModule&& other) noexcept;
+    ~ShaderModule() noexcept;
+
+    ShaderModule& operator=(const ShaderModule&) = default;
+    ShaderModule& operator=(ShaderModule&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return !is_null();
+    }
+
+    inline bool is_null() const noexcept {
+        return m_shader_module == VK_NULL_HANDLE;
+    }
+
+    inline operator VkShaderModule() noexcept {
+        return m_shader_module;
+    }
+
+    inline VkShaderModule shader_module() noexcept {
+        return m_shader_module;
+    }
+
+    inline void swap(ShaderModule& other) noexcept {
+        using std::swap;
+        Wrapper::swap(other);
+        swap(m_shader_module, other.m_shader_module);
+    }
+
+    friend inline void swap(ShaderModule& shader_module_0, ShaderModule& shader_module_1) noexcept {
+        shader_module_0.swap(shader_module_1);
+    }
+
+    void destroy() noexcept;
+
+private:
+    VkShaderModule m_shader_module = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/Swapchain.cpp

@@ -1,6 +1,7 @@
-#include <Vulkan/Swapchain.h>
+// Copyright 2022 Simon Boyé
+#include <vk/Swapchain.h>
 
-#include <Logger.h>
+#include <core/Logger.h>
 
 #include <SDL2/SDL_vulkan.h>
 
@@ -10,7 +11,7 @@
 #include <tuple>
 
 
-namespace Vulkan {
+namespace vk {
 
 
 SwapchainSettings::SwapchainSettings(Context* context)
@@ -79,12 +80,12 @@ VkImageView Swapchain::image_view(size_t image_index) {
     return m_image_resources[image_index].view;
 }
 
-VkSemaphore Swapchain::ready_to_render() {
+Semaphore& Swapchain::ready_to_render() {
     return m_frame_resources[m_frame_resources_index].ready_to_render;
 }
 
-VkFence Swapchain::render_done() {
+Fence& Swapchain::render_done() {
-    return m_frame_resources[m_frame_resources_index].render_done;
+    return *m_frame_resources[m_frame_resources_index].render_done;
 }
 
 void Swapchain::initialize(const SwapchainSettings& settings) {
@@ -111,13 +112,8 @@ void Swapchain::begin_frame() {
     // frame_resources are used cyclically. We wait for the current one to be
     // done rendering to not render more that MAX_FRAMES_IN_FLIGHT frames at
     // the same time.
-    if(frame_resources.render_done != VK_NULL_HANDLE) {
+    if(frame_resources.render_done) {
-        vkWaitForFences(
+        frame_resources.render_done->wait();
-            m_context->device(),
-            1, &frame_resources.render_done,
-            VK_TRUE,
-            UINT64_MAX
-        );
     }
 
     bool acquired_image = false;
@@ -141,27 +137,22 @@ void Swapchain::begin_frame() {
         }
     }
 
-    logger.info() << "begin frame " << m_frame_index
+    // logger.info() << "begin frame " << m_frame_index
-        << ": image " << m_current_image_index
+    //     << ": image " << m_current_image_index
-        << ", frame: " << m_frame_resources_index;
+    //     << ", frame: " << m_frame_resources_index;
 
     auto& image_resources = m_image_resources[m_current_image_index];
 
     // In case vkAcquireNextImageKHR doesn't return images in-order, we wait
     // again to be sure.
     if(image_resources.render_done != VK_NULL_HANDLE) {
-        vkWaitForFences(
+        image_resources.render_done.wait();
-            m_context->device(),
-            1, &image_resources.render_done,
-            VK_TRUE,
-            UINT64_MAX
-        );
     }
 
     // Remember the right frame to wait for.
-    frame_resources.render_done = image_resources.render_done;
+    frame_resources.render_done = &image_resources.render_done;
 
-    vkResetFences(m_context->device(), 1, &frame_resources.render_done);
+    frame_resources.render_done->reset();
 }
 
 void Swapchain::swap_buffers(Array<VkSemaphore> wait_semaphores) {
@@ -249,13 +240,13 @@ void Swapchain::create() {
             capabilities.maxImageExtent.height
         );
     }
-    logger.debug() << "swapchain extent: " << m_extent.width
+    // logger.debug() << "swapchain extent: " << m_extent.width
-        << ", " << m_extent.height;
+    //     << ", " << m_extent.height;
 
     uint32_t image_count = capabilities.minImageCount;
     if(capabilities.maxImageCount != 0)
         image_count = std::min(image_count, capabilities.maxImageCount);
-    logger.debug() << "swapchain image count: " << image_count;
+    // logger.debug() << "swapchain image count: " << image_count;
 
     bool share_image = m_queue_families.size() > 1;
 
@@ -296,13 +287,13 @@ void Swapchain::create() {
         swapchain_images
     );
 
-    m_image_resources.resize(image_count, {});
     for(size_t index = 0; index < image_count; index += 1) {
-        auto& image_resources = m_image_resources[index];
+        m_image_resources.emplace_back();
+        auto& image_resources = m_image_resources.back();
 
         image_resources.image = swapchain_images[index];
 
-        VkImageViewCreateInfo view_info {
+        image_resources.view = ImageView(*m_context, VkImageViewCreateInfo {
             .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
             .image = image_resources.image,
             .viewType = VK_IMAGE_VIEW_TYPE_2D,
@@ -320,66 +311,28 @@ void Swapchain::create() {
                 .baseArrayLayer = 0,
                 .layerCount = 1,
             },
-        };
+        });
 
-        if(vkCreateImageView(
+        image_resources.render_done = Fence(*m_context, VK_FENCE_CREATE_SIGNALED_BIT);
-            m_context->device(),
-            &view_info,
-            nullptr,
-            &image_resources.view
-        ) != VK_SUCCESS) {
-            throw std::runtime_error("failed to create swapchain image view");
-        }
-
-        VkFenceCreateInfo fence_info {
-            .sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
-            .flags = VK_FENCE_CREATE_SIGNALED_BIT,
-        };
-        if(vkCreateFence(
-            m_context->device(),
-            &fence_info,
-            nullptr,
-            &image_resources.render_done
-        ) != VK_SUCCESS)
-            throw std::runtime_error("failed to create fence");
     }
 
-    m_frame_resources.resize(MAX_FRAMES_IN_FLIGHT, {});
+    m_frame_resources.clear();
-
+    for(int index = 0; index < MAX_FRAMES_IN_FLIGHT; index += 1) {
-    int index = 0;
+        m_frame_resources.emplace_back(FrameResources {
-    for(auto& frame_resources: m_frame_resources) {
+            .ready_to_render = Semaphore(*m_context),
-        VkSemaphoreCreateInfo semaphore_info {
+        });
-            .sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
-        };
-        if(vkCreateSemaphore(
-            m_context->device(),
-            &semaphore_info,
-            nullptr,
-            &frame_resources.ready_to_render
-        ) != VK_SUCCESS)
-            throw std::runtime_error("failed to create semaphore");
-
-        index += 1;
     }
 
     for(auto& callback: m_creation_callbacks)
-        callback(image_count);
+        callback();
 }
 
 void Swapchain::destroy() {
     for(auto& callback: m_destruction_callbacks)
         callback();
 
-    for(auto& frame_resources: m_frame_resources) {
+    m_frame_resources.clear();
-        m_context->destroy_semaphore(frame_resources.ready_to_render);
+    m_image_resources.clear();
-        // This is a reference to an ImageResources.render_done
-        frame_resources.render_done = VK_NULL_HANDLE;
-    }
-
-    for(auto& image_resources: m_image_resources) {
-        m_context->destroy_fence(image_resources.render_done);
-        m_context->destroy_image_view(image_resources.view);
-    }
 
     m_context->destroy_swapchain(m_swapchain);
 }
@@ -389,6 +342,8 @@ void Swapchain::recreate() {
 
     destroy();
     create();
+
+    m_invalid = false;
 }
 
 

src/vk/Swapchain.h

@@ -1,9 +1,14 @@
+// Copyright 2022 Simon Boyé
 #pragma once
 
-#include <Vulkan/Context.h>
+#include <vk/Context.h>
-#include <utils.h>
+#include <vk/Semaphore.h>
+#include <vk/ImageView.h>
+
+#include <core/utils.h>
 
 #include <SDL2/SDL.h>
+
 #include <vulkan/vulkan.h>
 
 #include <optional>
@@ -12,7 +17,7 @@
 #include <functional>
 
 
-namespace Vulkan {
+namespace vk {
 
 
 class Swapchain;
@@ -37,7 +42,7 @@ public:
     static constexpr uint32_t CURRENT_IMAGE_INDEX = UINT32_MAX;
     static constexpr uint32_t MAX_FRAMES_IN_FLIGHT = 2;
 
-    using CreationCallback = std::function<void(uint32_t)>;
+    using CreationCallback = std::function<void()>;
     using DestructionCallback = std::function<void()>;
 
 public:
@@ -55,8 +60,8 @@ public:
     VkImage image(size_t image_index);
     VkImageView image_view();
     VkImageView image_view(size_t image_index);
-    VkSemaphore ready_to_render();
+    Semaphore& ready_to_render();
-    VkFence render_done();
+    Fence& render_done();
 
     void initialize(const SwapchainSettings& settings);
     void shutdown();
@@ -72,13 +77,13 @@ public:
 private:
     struct ImageResources {
         VkImage image = VK_NULL_HANDLE;
-        VkImageView view = VK_NULL_HANDLE;
+        ImageView view;
-        VkFence render_done = VK_NULL_HANDLE;
+        Fence render_done;
     };
 
     struct FrameResources {
-        VkSemaphore ready_to_render = VK_NULL_HANDLE;
+        Semaphore ready_to_render;
-        VkFence render_done = VK_NULL_HANDLE;
+        Fence* render_done = nullptr;
     };
 
 private:

src/vk/Wrapper.cpp

@@ -0,0 +1,49 @@
+// Copyright 2022 Simon Boyé
+
+#include <vk/Wrapper.h>
+#include <vk/Context.h>
+
+#include <cassert>
+
+
+namespace vk {
+
+
+Wrapper::Wrapper() noexcept {
+}
+
+Wrapper::Wrapper(Context& context, Flags flags) noexcept
+    : m_context(&context)
+    , m_flags(flags)
+{
+    assert(m_context);
+}
+
+Wrapper::Wrapper(const Wrapper& other) noexcept
+    : m_context(other.m_context)
+{}
+
+Wrapper::Wrapper(Wrapper&& other) noexcept
+{
+    swap(other);
+}
+
+Wrapper::~Wrapper() noexcept {
+}
+
+
+Wrapper& Wrapper::operator=(const Wrapper& other) noexcept {
+    if (&other != this) {
+        m_context = other.m_context;
+        m_flags = other.m_flags & ~OwnUnderlyingObject;
+    }
+    return *this;
+}
+
+Wrapper& Wrapper::operator=(Wrapper&& other) noexcept {
+    swap(other);
+    return *this;
+}
+
+
+}

src/vk/Wrapper.h

@@ -0,0 +1,65 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class Wrapper {
+public:
+    enum Flag {
+        DontOwnUnderlyingObject = 0x00,
+        OwnUnderlyingObject     = 0x01,
+    };
+    using Flags = unsigned;
+
+public:
+    Wrapper() noexcept;
+    Wrapper(Context& context, Flags flags=OwnUnderlyingObject) noexcept;
+    Wrapper(const Wrapper& other) noexcept;
+    Wrapper(Wrapper&& other) noexcept;
+    ~Wrapper() noexcept;
+
+    Wrapper& operator=(const Wrapper& other) noexcept;
+    Wrapper& operator=(Wrapper&& other) noexcept;
+
+    inline const Context* context() const noexcept {
+        return m_context;
+    }
+
+    inline Context* context() noexcept {
+        return m_context;
+    }
+
+    inline bool own_underlying_object() const noexcept {
+        return (m_flags & OwnUnderlyingObject) != 0;
+    }
+
+    inline void set_own_underlying_object(bool own_underlying_object) noexcept {
+        if(own_underlying_object)
+            m_flags |= OwnUnderlyingObject;
+        else
+            m_flags &= ~OwnUnderlyingObject;
+    }
+
+    inline void swap(Wrapper& other) noexcept {
+        using std::swap;
+        swap(m_context, other.m_context);
+        swap(m_flags, other.m_flags);
+    }
+
+    friend inline void swap(Wrapper& wrapper_0, Wrapper& wrapper_1) noexcept {
+        wrapper_0.swap(wrapper_1);
+    }
+
+protected:
+    Context* m_context = nullptr;
+    Flags m_flags = 0;
+};
+
+
+}

src/vk/forward.h

@@ -0,0 +1,23 @@
+// Copyright 2022 Simon Boyé
+
+#include <memory>
+
+
+namespace vk {
+
+
+class MemoryPage;
+class MemoryBlock;
+class Allocator;
+
+using MemoryPageSP = std::shared_ptr<MemoryBlock>;
+
+class Context;
+class ContextSettings;
+
+class Buffer;
+class RenderPass;
+class Fence;
+
+
+}