Exemple #1
0
 /// <summary>
 /// Initializes a new instance of the <see cref="SwapchainCreateInfoKhr"/> structure.
 /// </summary>
 /// <param name="surface">
 /// The <see cref="SurfaceKhr"/> that the swapchain will present images to.
 /// </param>
 /// <param name="imageExtent">
 /// The size (in pixels) of the swapchain.
 /// <para>
 /// Behavior is platform-dependent when the image extent does not match the surface's <see
 /// cref="SurfaceCapabilitiesKhr.CurrentExtent"/> as returned by <see cref="PhysicalDeviceExtensions.GetSurfaceCapabilitiesKhr"/>.
 /// </para>
 /// </param>
 /// <param name="preTransform">
 /// A bitmask describing the transform, relative to the presentation engine's natural
 /// orientation, applied to the image content prior to presentation.
 /// <para>
 /// If it does not match the <see cref="SurfaceCapabilitiesKhr.CurrentTransform"/> value
 /// returned by <see cref="PhysicalDeviceExtensions.GetSurfaceCapabilitiesKhr"/>, the
 /// presentation engine will transform the image content as part of the presentation operation.
 /// </para>
 /// </param>
 /// <param name="imageUsage">
 /// A bitmask indicating how the application will use the swapchain's presentable images.
 /// </param>
 /// <param name="flags">A bitmask indicating parameters of swapchain creation.</param>
 /// <param name="minImageCount">
 /// The minimum number of presentable images that the application needs. The platform will
 /// either create the swapchain with at least that many images, or will fail to create the swapchain.
 /// </param>
 /// <param name="imageFormat">A format that is valid for swapchains on the specified surface.</param>
 /// <param name="compositeAlpha">
 /// A bitmask indicating the alpha compositing mode to use when this surface is composited
 /// together with other surfaces on certain window systems.
 /// </param>
 /// <param name="imageArrayLayers">
 /// The number of views in a multiview/stereo surface. For non-stereoscopic-3D applications,
 /// this value is 1.
 /// </param>
 /// <param name="presentMode">
 /// The presentation mode the swapchain will use.
 /// <para>
 /// A swapchain's present mode determines how incoming present requests will be processed and
 /// queued internally.
 /// </para>
 /// </param>
 /// <param name="clipped">
 /// Indicates whether the Vulkan implementation is allowed to discard rendering operations
 /// that affect regions of the surface which are not visible.
 /// </param>
 /// <param name="oldSwapchain">Existing swapchain to replace, if any.</param>
 public SwapchainCreateInfoKhr(
     SurfaceKhr surface,
     Format imageFormat,
     Extent2D imageExtent,
     SurfaceTransformsKhr preTransform,
     PresentModeKhr presentMode,
     SwapchainCreateFlagsKhr flags     = 0,
     int minImageCount                 = 2,
     ImageUsages imageUsage            = ImageUsages.ColorAttachment | ImageUsages.TransferDst,
     CompositeAlphasKhr compositeAlpha = CompositeAlphasKhr.Opaque,
     int imageArrayLayers              = 1,
     bool clipped = true,
     SwapchainKhr oldSwapchain = null)
 {
     Flags              = flags;
     Surface            = surface;
     ImageUsage         = imageUsage;
     MinImageCount      = minImageCount;
     ImageFormat        = imageFormat;
     ImageColorSpace    = 0;
     ImageExtent        = imageExtent;
     ImageArrayLayers   = imageArrayLayers;
     ImageSharingMode   = 0;
     QueueFamilyIndices = null;
     PreTransform       = preTransform;
     CompositeAlpha     = compositeAlpha;
     PresentMode        = presentMode;
     Clipped            = clipped;
     OldSwapchain       = oldSwapchain;
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="SwapchainCreateInfoKhr"/> structure.
 /// </summary>
 /// <param name="surface">
 /// The <see cref="SurfaceKhr"/> that the swapchain will present images to.
 /// </param>
 /// <param name="imageFormat">A format that is valid for swapchains on the specified surface.</param>
 /// <param name="imageExtent">
 /// The size (in pixels) of the swapchain.
 /// <para>
 /// Behavior is platform-dependent when the image extent does not match the surface's <see
 /// cref="SurfaceCapabilitiesKhr.CurrentExtent"/> as returned by <see cref="PhysicalDeviceExtensions.GetSurfaceCapabilitiesKhr"/>.
 /// </para>
 /// </param>
 /// <param name="minImageCount">
 /// The minimum number of presentable images that the application needs. The platform will
 /// either create the swapchain with at least that many images, or will fail to create the swapchain.
 /// </param>
 /// <param name="imageColorSpace">Color space value specifying the way the swapchain interprets image data.</param>
 /// <param name="imageArrayLayers">
 /// The number of views in a multiview/stereo surface.
 /// <para>For non-stereoscopic-3D applications, this value is 1.</para>
 /// </param>
 /// <param name="imageUsage">A bitmask describing the intended usage of the (acquired) swapchain images.</param>
 /// <param name="imageSharingMode">The sharing mode used for the image(s) of the swapchain.</param>
 /// <param name="queueFamilyIndices">
 /// Queue family indices having access to the image(s) of the swapchain when <see
 /// cref="ImageSharingMode"/> is <see cref="SharingMode.Concurrent"/>.
 /// </param>
 /// <param name="preTransform">
 /// A value describing the transform, relative to the presentation engine's natural
 /// orientation, applied to the image content prior to presentation.
 /// <para>
 /// If it does not match the <see cref="SurfaceCapabilitiesKhr.CurrentTransform"/> value
 /// returned by <see cref="PhysicalDeviceExtensions.GetSurfaceCapabilitiesKhr"/>, the
 /// presentation engine will transform the image content as part of the presentation operation.
 /// </para>
 /// </param>
 /// <param name="compositeAlpha">
 /// A bitmask indicating the alpha compositing mode to use when this surface is composited
 /// together with other surfaces on certain window systems.
 /// </param>
 /// <param name="presentMode">
 /// The presentation mode the swapchain will use.
 /// <para>
 /// A swapchain's present mode determines how incoming present requests will be processed and
 /// queued internally.
 /// </para>
 /// </param>
 /// <param name="clipped">
 /// Indicates whether the Vulkan implementation is allowed to discard rendering operations
 /// that affect regions of the surface which are not visible.</param>
 /// <param name="oldSwapchain">Existing swapchain to replace, if any.</param>
 public SwapchainCreateInfoKhr(
     SurfaceKhr surface,
     Format imageFormat,
     Extent2D imageExtent,
     int minImageCount                 = 2,
     ColorSpaceKhr imageColorSpace     = ColorSpaceKhr.SRgbNonlinear,
     int imageArrayLayers              = 1,
     ImageUsages imageUsage            = ImageUsages.ColorAttachment | ImageUsages.TransferDst,
     SharingMode imageSharingMode      = SharingMode.Exclusive,
     int[] queueFamilyIndices          = null,
     SurfaceTransformsKhr preTransform = SurfaceTransformsKhr.Identity,
     CompositeAlphasKhr compositeAlpha = CompositeAlphasKhr.Opaque,
     PresentModeKhr presentMode        = PresentModeKhr.Fifo,
     bool clipped = true,
     SwapchainKhr oldSwapchain = null)
 {
     Flags              = SwapchainCreateFlagsKhr.None;
     Surface            = surface;
     MinImageCount      = minImageCount;
     ImageFormat        = imageFormat;
     ImageColorSpace    = imageColorSpace;
     ImageExtent        = imageExtent;
     ImageArrayLayers   = imageArrayLayers;
     ImageUsage         = imageUsage;
     ImageSharingMode   = imageSharingMode;
     QueueFamilyIndices = queueFamilyIndices;
     PreTransform       = preTransform;
     CompositeAlpha     = compositeAlpha;
     PresentMode        = presentMode;
     Clipped            = clipped;
     OldSwapchain       = oldSwapchain;
 }
Exemple #3
0
        public Swapchain(GraphicsDevice gdevice, Vk.Instance instance, Vk.PhysicalDevice pDevice, Vk.Device device)
        {
            Device            = gdevice;
            _window           = gdevice.Application.Window;
            _vkInstance       = instance;
            _vkPhysicalDevice = pDevice;
            _vkDevice         = device;

            // Create the surface
            long surfHandle = Glfw.CreateWindowSurface(instance, _window.Handle);

            Vk.AllocationCallbacks?acb = null;
            Surface = new VkKhr.SurfaceKhr(instance, ref acb, surfHandle);
            if (VkKhr.PhysicalDeviceExtensions.GetSurfaceSupportKhr(pDevice, gdevice.Queues.Graphics.FamilyIndex, Surface) == Vk.Constant.False)
            {
                LFATAL($"The physical device '{gdevice.Info.Name}' does not support surface presentation.");
                throw new PlatformNotSupportedException("Physical device does not support surface presentation.");
            }
            LINFO("Created Vulkan presentation surface.");

            // Check the surface for swapchain support levels
            var sFmts  = VkKhr.PhysicalDeviceExtensions.GetSurfaceFormatsKhr(pDevice, Surface);
            var pModes = VkKhr.PhysicalDeviceExtensions.GetSurfacePresentModesKhr(pDevice, Surface);

            if (sFmts.Length == 0)
            {
                throw new PlatformNotSupportedException("The chosen device does not support any presentation formats.");
            }
            if (pModes.Length == 0)
            {
                throw new PlatformNotSupportedException("The chosen device does not support any presentation modes.");
            }

            // Choose the best available surface format
            if (sFmts.Length == 1 && sFmts[0].Format == Vk.Format.Undefined)             // We are allowed to pick!
            {
                _surfaceFormat = PREFERRED_SURFACE_FORMATS[0];
            }
            else             // Check if one of the preferred formats is available, otherwise just use the first format given
            {
                var sfmt = PREFERRED_SURFACE_FORMATS.FirstOrDefault(fmt => sFmts.Contains(fmt));
                if (sfmt.Format == 0 && sfmt.ColorSpace == 0)
                {
                    _surfaceFormat = sFmts[0];
                }
                else
                {
                    _surfaceFormat = sfmt;
                }
            }

            // Choose the presentation mode (prefer mailbox -> fifo -> imm)
            _presentMode =
                pModes.Contains(VkKhr.PresentModeKhr.Mailbox) ? VkKhr.PresentModeKhr.Mailbox :
                pModes.Contains(VkKhr.PresentModeKhr.Fifo) ? VkKhr.PresentModeKhr.Fifo :
                VkKhr.PresentModeKhr.Immediate;

            // Prepare the synchronization objects
            _syncObjects.ImageAvailable = new Vk.Semaphore[MAX_INFLIGHT_FRAMES];
            _syncObjects.BlitComplete   = new Vk.Semaphore[MAX_INFLIGHT_FRAMES];
            for (int i = 0; i < MAX_INFLIGHT_FRAMES; ++i)
            {
                _syncObjects.ImageAvailable[i] = device.CreateSemaphore();
                _syncObjects.BlitComplete[i]   = device.CreateSemaphore();
            }

            // Setup the command buffers
            var cpci = new Vk.CommandPoolCreateInfo(_presentQueue.FamilyIndex,
                                                    Vk.CommandPoolCreateFlags.Transient | Vk.CommandPoolCreateFlags.ResetCommandBuffer);

            _commandPool = device.CreateCommandPool(cpci);
            var cbai = new Vk.CommandBufferAllocateInfo(Vk.CommandBufferLevel.Primary, 1);

            _commandBuffer     = _commandPool.AllocateBuffers(cbai)[0];
            _blitFence         = device.CreateFence();     // Do NOT start this signalled, as it is needed in rebuildSwapchain() below
            _rtTransferBarrier = new Vk.ImageMemoryBarrier(
                null,
                new Vk.ImageSubresourceRange(Vk.ImageAspects.Color, 0, 1, 0, 1),
                Vk.Accesses.ColorAttachmentWrite,
                Vk.Accesses.TransferRead,
                Vk.ImageLayout.ColorAttachmentOptimal,
                Vk.ImageLayout.TransferSrcOptimal
                );
            _rtAttachBarrier = new Vk.ImageMemoryBarrier(
                null,
                new Vk.ImageSubresourceRange(Vk.ImageAspects.Color, 0, 1, 0, 1),
                Vk.Accesses.TransferRead,
                Vk.Accesses.ColorAttachmentWrite,
                Vk.ImageLayout.TransferSrcOptimal,
                Vk.ImageLayout.ColorAttachmentOptimal
                );

            // Build the swapchain
            rebuildSwapchain();
        }