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//
// RenderPass.cs
//
// Author:
// Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// Copyright (c) 2019 jp
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Collections.Generic;
using Vulkan;
using static Vulkan.VulkanNative;
namespace VKE {
public class RenderPass : Activable {
internal VkRenderPass handle;
internal List<VkAttachmentDescription> attachments = new List<VkAttachmentDescription> ();
public List<VkClearValue> ClearValues = new List<VkClearValue> ();
internal List<SubPass> subpasses = new List<SubPass> ();
List<VkSubpassDependency> dependencies = new List<VkSubpassDependency> ();
#region CTORS
public RenderPass (Device device) : base(device) { }
/// <summary>
/// Create default renderpass with one color and one depth attachments
/// </summary>
public RenderPass (Device device, VkFormat colorFormat, VkFormat depthFormat, VkSampleCountFlags samples = VkSampleCountFlags.Count1)
: this (device){
AddAttachment (colorFormat, (samples == VkSampleCountFlags.Count1) ? VkImageLayout.PresentSrcKHR : VkImageLayout.ColorAttachmentOptimal, samples);
AddAttachment (depthFormat, VkImageLayout.DepthStencilAttachmentOptimal, samples);
ClearValues.Add (new VkClearValue { color = new VkClearColorValue (0.0f, 0.0f, 0.2f) });
ClearValues.Add (new VkClearValue { depthStencil = new VkClearDepthStencilValue (1.0f, 0) });
SubPass subpass0 = new SubPass ();
subpass0.AddColorReference (0, VkImageLayout.ColorAttachmentOptimal);
subpass0.SetDepthReference (1, VkImageLayout.DepthStencilAttachmentOptimal);
if (samples != VkSampleCountFlags.Count1) {
AddAttachment (colorFormat, VkImageLayout.PresentSrcKHR, VkSampleCountFlags.Count1);
ClearValues.Add (new VkClearValue { color = new VkClearColorValue (0.0f, 0.0f, 0.2f) });
subpass0.AddResolveReference (2, VkImageLayout.ColorAttachmentOptimal);
}
AddSubpass (subpass0);
AddDependency (VulkanNative.SubpassExternal, 0,
VkPipelineStageFlags.BottomOfPipe, VkPipelineStageFlags.ColorAttachmentOutput,
VkAccessFlags.MemoryRead, VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite);
AddDependency (0, 1,
VkPipelineStageFlags.ColorAttachmentOutput, VkPipelineStageFlags.BottomOfPipe,
VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite, VkAccessFlags.MemoryRead);
}
#endregion
public override void Activate () {
if (state != ActivableState.Activated) {
List<VkSubpassDescription> spDescs = new List<VkSubpassDescription> ();
foreach (SubPass sp in subpasses)
spDescs.Add (sp.SubpassDescription);
VkRenderPassCreateInfo renderPassInfo = VkRenderPassCreateInfo.New ();
renderPassInfo.attachmentCount = (uint)attachments.Count;
renderPassInfo.pAttachments = attachments.Pin ();
renderPassInfo.subpassCount = (uint)spDescs.Count;
renderPassInfo.pSubpasses = spDescs.Pin ();
renderPassInfo.dependencyCount = (uint)dependencies.Count;
renderPassInfo.pDependencies = dependencies.Pin ();
handle = dev.CreateRenderPass (renderPassInfo);
attachments.Unpin ();
spDescs.Unpin ();
dependencies.Unpin ();
}
base.Activate ();
}
public void AddAttachment (VkFormat format,
VkImageLayout finalLayout, VkSampleCountFlags samples = VkSampleCountFlags.Count1,
VkAttachmentLoadOp loadOp = VkAttachmentLoadOp.Clear,
VkAttachmentStoreOp storeOp = VkAttachmentStoreOp.Store,
VkImageLayout initialLayout = VkImageLayout.Undefined) {
attachments.Add (new VkAttachmentDescription {
format = format,
samples = samples,
loadOp = loadOp,
storeOp = storeOp,
stencilLoadOp = VkAttachmentLoadOp.DontCare,
stencilStoreOp = VkAttachmentStoreOp.DontCare,
initialLayout = initialLayout,
finalLayout = finalLayout,
});
}
public void AddAttachment (VkFormat format, VkImageLayout finalLayout,
VkAttachmentLoadOp stencilLoadOp,
VkAttachmentStoreOp stencilStoreOp,
VkAttachmentLoadOp loadOp = VkAttachmentLoadOp.DontCare,
VkAttachmentStoreOp storeOp = VkAttachmentStoreOp.DontCare,
VkSampleCountFlags samples = VkSampleCountFlags.Count1,
VkImageLayout initialLayout = VkImageLayout.Undefined) {
attachments.Add (new VkAttachmentDescription {
format = format,
samples = samples,
loadOp = loadOp,
storeOp = storeOp,
stencilLoadOp = stencilLoadOp,
stencilStoreOp = stencilStoreOp,
initialLayout = initialLayout,
finalLayout = finalLayout,
});
}
public void AddDependency (uint srcSubpass, uint dstSubpass,
VkPipelineStageFlags srcStageMask, VkPipelineStageFlags dstStageMask,
VkAccessFlags srcAccessMask, VkAccessFlags dstAccessMask,
VkDependencyFlags dependencyFlags = VkDependencyFlags.ByRegion) {
VkSubpassDependency dep = new VkSubpassDependency {
srcSubpass = srcSubpass,
dstSubpass = dstSubpass,
srcStageMask = srcStageMask,
dstStageMask = dstStageMask,
srcAccessMask = srcAccessMask,
dstAccessMask = dstAccessMask,
dependencyFlags = dependencyFlags
};
}
public void AddSubpass (SubPass subPass) {
subpasses.Add (subPass);
}
/// <summary>
/// Begin Render pass with framebuffer extent dimensions
/// </summary>
public void Begin (CommandBuffer cmd, Framebuffer frameBuffer) {
Begin (cmd, frameBuffer, frameBuffer.Width, frameBuffer.Height);
}
/// <summary>
/// Begin Render pass with custom render area
/// </summary>
public unsafe void Begin (CommandBuffer cmd, Framebuffer frameBuffer, uint width, uint height) {
VkRenderPassBeginInfo info = VkRenderPassBeginInfo.New ();
info.renderPass = handle;
info.renderArea.extent.width = width;
info.renderArea.extent.height = height;
info.clearValueCount = (uint)ClearValues.Count;
info.pClearValues = ClearValues.Pin ();
info.framebuffer = frameBuffer.handle;
vkCmdBeginRenderPass (cmd.Handle, ref info, VkSubpassContents.Inline);
ClearValues.Unpin ();
}
public void End (CommandBuffer cmd) {
vkCmdEndRenderPass (cmd.Handle);
}
#region IDisposable Support
protected override void Dispose (bool disposing) {
if (!disposing)
System.Diagnostics.Debug.WriteLine ("VKE Activable RenderPass disposed by finalizer");
if (state == ActivableState.Activated)
dev.DestroyRenderPass (handle);
base.Dispose (disposing);
}
#endregion
}
}
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