Wrapper around fences and render pass.

src/VulkanTutorial.cpp

@@ -333,7 +333,7 @@ void VulkanTutorial::destroy_swapchain_objects() {
 
     m_context.destroy_pipeline(m_pipeline);
     m_context.destroy_pipeline_layout(m_pipeline_layout);
-    m_context.destroy_render_pass(m_render_pass);
+    m_render_pass.destroy();
 }
 
 void VulkanTutorial::create_render_pass() {
@@ -378,13 +378,7 @@ void VulkanTutorial::create_render_pass() {
         .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");
+    m_render_pass = vk::RenderPass(m_context, render_pass_info);
 }
 
 void VulkanTutorial::create_descriptor_set_layout() {

src/VulkanTutorial.h

@@ -4,6 +4,7 @@
 #include <vk/Context.h>
 #include <vk/Swapchain.h>
 #include <vk/Buffer.h>
+#include <vk/RenderPass.h>
 
 #include <core/math.h>
 
@@ -69,7 +70,7 @@ private:
     VkQueue m_graphic_queue = nullptr;
     VkQueue m_presentation_queue = nullptr;
 
-    VkRenderPass m_render_pass = VK_NULL_HANDLE;
+    vk::RenderPass m_render_pass;
     VkDescriptorSetLayout m_descriptor_set_layout = VK_NULL_HANDLE;
     VkPipelineLayout m_pipeline_layout = VK_NULL_HANDLE;
     VkPipeline m_pipeline = VK_NULL_HANDLE;

src/core/ArrayView.h

@@ -42,12 +42,16 @@ public:
         return m_stride;
     }
 
+    bool is_dense() const {
+        return m_stride == sizeof(T);
+    }
+
     const T* data() const {
-        return m_data;
+        return reinterpret_cast<const T*>(m_data);
     }
 
     T* data() {
-        return m_data;
+        return reinterpret_cast<T*>(m_data);
     }
 
     const T& operator[](Index index) const {
@@ -74,6 +78,3 @@ private:
     Index m_size = 0;
     Index m_stride = sizeof(T);
 };
-
-using Vector3AV = ArrayView<Vector3>;
-using TriangleAV = ArrayView<Triangle>;

src/core/math.h

@@ -3,6 +3,7 @@
 
 
 #include <core/types.h>
+#include <core/ArrayView.h>
 
 #include <Eigen/Dense>
 
@@ -26,6 +27,10 @@ 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,

src/vk/Buffer.cpp

@@ -7,6 +7,7 @@
 #include <stdexcept>
 #include <algorithm>
 #include <cassert>
+#include <cstring>
 
 
 namespace vk {

src/vk/Context.cpp

@@ -140,7 +140,7 @@ void Context::shutdown() {
     m_allocator->free_all_pages();
     m_allocator.reset();
 
-    destroy_fence(m_transfer_fence);
+    m_transfer_fence.destroy();
     destroy_command_pool(m_transfer_command_pool);
 
     destroy_device(m_device);
@@ -330,7 +330,7 @@ void Context::copy_buffer(VkBuffer dst, VkBuffer src, uint32_t dst_queue_family,
 
     vkEndCommandBuffer(command_buffer);
 
-    vkResetFences(m_device, 1, &m_transfer_fence);
+    m_transfer_fence.reset();
 
     VkSubmitInfo submit_info {
         .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
@@ -342,7 +342,7 @@ void Context::copy_buffer(VkBuffer dst, VkBuffer src, uint32_t dst_queue_family,
         1, &submit_info,
         m_transfer_fence
     );
-    vkWaitForFences(m_device, 1, &m_transfer_fence, VK_TRUE, UINT64_MAX);
+    m_transfer_fence.wait();
 }
 
 
@@ -790,11 +790,7 @@ void Context::create_internal_objects() {
         throw std::runtime_error("failed to create command pool");
     }
 
-    VkFenceCreateInfo fence_info {
-        .sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,
-    };
-    if(vkCreateFence(m_device, &fence_info, nullptr, &m_transfer_fence) != VK_SUCCESS)
-        throw std::runtime_error("failed to create fence");
+    m_transfer_fence = Fence(*this);
 }
 
 void Context::initialize_extension_functions() {

src/vk/Context.h

@@ -2,6 +2,7 @@
 #pragma once
 
 #include <vk/forward.h>
+#include <vk/Fence.h>
 
 #include <core/utils.h>
 #include <core/Logger.h>
@@ -194,7 +195,7 @@ private:
 
     uint32_t m_transfer_queue_index = UINT32_MAX;
     VkCommandPool m_transfer_command_pool = VK_NULL_HANDLE;
-    VkFence m_transfer_fence = VK_NULL_HANDLE;
+    Fence m_transfer_fence;
 
     std::vector<ContextDestructionCallback> m_context_destruction_callbacks;
 

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)
+    : m_context(&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(*this, other);
+}
+
+Fence::~Fence() noexcept {
+    if(is_valid())
+        destroy();
+}
+
+
+Fence& Fence::operator=(Fence&& other) noexcept {
+    swap(*this, other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+VkResult Fence::get_status() const {
+    assert(m_context);
+    assert(is_valid());
+
+    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_valid());
+
+    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_valid());
+
+    wait_for_fences(
+        m_context->device(),
+        ArrayView<VkFence>(1, const_cast<VkFence*>(&m_fence)),
+        true,
+        timeout
+    );
+}
+
+
+void Fence::destroy() noexcept {
+    assert(is_valid());
+    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 +1,69 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <core/ArrayView.h>
+
+#include <vk/forward.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class Fence {
+public:
+    Fence() noexcept;
+    Fence(Context& context, VkFenceCreateFlags flags=0);
+    Fence(const Fence&) = delete;
+    Fence(Fence&& other) noexcept;
+    ~Fence() noexcept;
+
+    Fence& operator=(const Fence&) = delete;
+    Fence& operator=(Fence&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return is_valid();
+    }
+
+    inline bool is_valid() const noexcept {
+        return m_fence != VK_NULL_HANDLE;
+    }
+
+    inline const Context* context() const noexcept {
+        return m_context;
+    }
+
+    inline Context* context() noexcept {
+        return m_context;
+    }
+
+    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;
+
+    friend inline void swap(Fence& fence_0, Fence& fence_1) noexcept {
+        using std::swap;
+        swap(fence_0.m_context, fence_1.m_context);
+        swap(fence_0.m_fence, fence_1.m_fence);
+    }
+
+    void destroy() noexcept;
+
+private:
+    Context* m_context = nullptr;
+    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/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)
+    : m_context(&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(*this, other);
+}
+
+RenderPass::~RenderPass() noexcept {
+    if(is_valid())
+        destroy();
+}
+
+
+RenderPass& RenderPass::operator=(RenderPass&& other) noexcept {
+    swap(*this, other);
+    if(other)
+        other.destroy();
+    return *this;
+}
+
+
+void RenderPass::destroy() noexcept {
+    assert(is_valid());
+    assert(m_context);
+
+    vkDestroyRenderPass(
+        m_context->device(),
+        m_render_pass,
+        nullptr
+    );
+
+    m_render_pass = nullptr;
+}
+
+
+
+}

src/vk/RenderPass.h

@@ -0,0 +1,53 @@
+// Copyright 2022 Simon Boyé
+#pragma once
+
+#include <vk/forward.h>
+
+#include <vulkan/vulkan.h>
+
+
+namespace vk {
+
+
+class RenderPass {
+public:
+    RenderPass() noexcept;
+    RenderPass(Context& context, const VkRenderPassCreateInfo& create_info);
+    RenderPass(const RenderPass&) = delete;
+    RenderPass(RenderPass&& other) noexcept;
+    ~RenderPass() noexcept;
+
+    RenderPass& operator=(const RenderPass&) = delete;
+    RenderPass& operator=(RenderPass&& other) noexcept;
+
+    explicit inline operator bool() const noexcept {
+        return is_valid();
+    }
+
+    inline bool is_valid() 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;
+    }
+
+    friend inline void swap(RenderPass& render_pass_0, RenderPass& render_pass_1) noexcept {
+        using std::swap;
+        swap(render_pass_0.m_context, render_pass_1.m_context);
+        swap(render_pass_0.m_render_pass, render_pass_1.m_render_pass);
+    }
+
+    void destroy() noexcept;
+
+private:
+    Context* m_context = nullptr;
+    VkRenderPass m_render_pass = VK_NULL_HANDLE;
+};
+
+
+}

src/vk/Swapchain.cpp

@@ -84,8 +84,8 @@ VkSemaphore Swapchain::ready_to_render() {
     return m_frame_resources[m_frame_resources_index].ready_to_render;
 }
 
-VkFence Swapchain::render_done() {
-    return m_frame_resources[m_frame_resources_index].render_done;
+Fence& Swapchain::render_done() {
+    return *m_frame_resources[m_frame_resources_index].render_done;
 }
 
 void Swapchain::initialize(const SwapchainSettings& settings) {
@@ -112,13 +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) {
-        vkWaitForFences(
-            m_context->device(),
-            1, &frame_resources.render_done,
-            VK_TRUE,
-            UINT64_MAX
-        );
+    if(frame_resources.render_done) {
+        frame_resources.render_done->wait();
     }
 
     bool acquired_image = false;
@@ -151,18 +146,13 @@ void Swapchain::begin_frame() {
     // In case vkAcquireNextImageKHR doesn't return images in-order, we wait
     // again to be sure.
     if(image_resources.render_done != VK_NULL_HANDLE) {
-        vkWaitForFences(
-            m_context->device(),
-            1, &image_resources.render_done,
-            VK_TRUE,
-            UINT64_MAX
-        );
+        image_resources.render_done.wait();
     }
 
     // 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) {
@@ -297,9 +287,9 @@ 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];
 
@@ -332,17 +322,7 @@ void Swapchain::create() {
             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");
+        image_resources.render_done = Fence(*m_context, VK_FENCE_CREATE_SIGNALED_BIT);
     }
 
     m_frame_resources.resize(MAX_FRAMES_IN_FLIGHT, {});
@@ -374,11 +354,11 @@ void Swapchain::destroy() {
     for(auto& frame_resources: m_frame_resources) {
         m_context->destroy_semaphore(frame_resources.ready_to_render);
         // This is a reference to an ImageResources.render_done
-        frame_resources.render_done = VK_NULL_HANDLE;
+        frame_resources.render_done = nullptr;
     }
 
     for(auto& image_resources: m_image_resources) {
-        m_context->destroy_fence(image_resources.render_done);
+        image_resources.render_done.destroy();
         m_context->destroy_image_view(image_resources.view);
     }
 

src/vk/Swapchain.h

@@ -59,7 +59,7 @@ public:
     VkImageView image_view();
     VkImageView image_view(size_t image_index);
     VkSemaphore ready_to_render();
-    VkFence render_done();
+    Fence& render_done();
 
     void initialize(const SwapchainSettings& settings);
     void shutdown();
@@ -76,12 +76,12 @@ private:
     struct ImageResources {
         VkImage image = VK_NULL_HANDLE;
         VkImageView view = VK_NULL_HANDLE;
-        VkFence render_done = VK_NULL_HANDLE;
+        Fence render_done;
     };
 
     struct FrameResources {
         VkSemaphore ready_to_render = VK_NULL_HANDLE;
-        VkFence render_done = VK_NULL_HANDLE;
+        Fence* render_done = nullptr;
     };
 
 private:

src/vk/forward.h

@@ -15,5 +15,9 @@ using MemoryPageSP = std::shared_ptr<MemoryBlock>;
 class Context;
 class ContextSettings;
 
+class Buffer;
+class RenderPass;
+class Fence;
+
 
 }