private void CreateRenderPass(VkFormat colorFormat)
{
VkAttachmentDescription attachment = new VkAttachmentDescription(
colorFormat,
VkSampleCountFlags.Count1,
VkAttachmentLoadOp.Clear, VkAttachmentStoreOp.Store,
VkAttachmentLoadOp.DontCare, VkAttachmentStoreOp.DontCare,
VkImageLayout.Undefined, VkImageLayout.PresentSrcKHR
);
VkAttachmentReference colorAttachmentRef = new VkAttachmentReference(0, VkImageLayout.ColorAttachmentOptimal);
VkSubpassDescription subpass = new VkSubpassDescription
{
pipelineBindPoint = VkPipelineBindPoint.Graphics,
colorAttachmentCount = 1,
pColorAttachments = &colorAttachmentRef
};
VkSubpassDependency[] dependencies = new VkSubpassDependency[2];
dependencies[0] = new VkSubpassDependency
{
srcSubpass = SubpassExternal,
dstSubpass = 0,
srcStageMask = VkPipelineStageFlags.BottomOfPipe,
dstStageMask = VkPipelineStageFlags.ColorAttachmentOutput,
srcAccessMask = VkAccessFlags.MemoryRead,
dstAccessMask = VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite,
dependencyFlags = VkDependencyFlags.ByRegion
};
dependencies[1] = new VkSubpassDependency
{
srcSubpass = 0,
dstSubpass = SubpassExternal,
srcStageMask = VkPipelineStageFlags.ColorAttachmentOutput,
dstStageMask = VkPipelineStageFlags.BottomOfPipe,
srcAccessMask = VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite,
dstAccessMask = VkAccessFlags.MemoryRead,
dependencyFlags = VkDependencyFlags.ByRegion
};
fixed(VkSubpassDependency *dependenciesPtr = &dependencies[0])
{
VkRenderPassCreateInfo createInfo = new VkRenderPassCreateInfo
{
sType = VkStructureType.RenderPassCreateInfo,
attachmentCount = 1,
pAttachments = &attachment,
subpassCount = 1,
pSubpasses = &subpass,
dependencyCount = 2,
pDependencies = dependenciesPtr
};
vkCreateRenderPass(Device, &createInfo, null, out RenderPass).CheckResult();
}
}
public AttachmentInfo(VkFormat format)
{
this.RTType = format.IsDepthFormat() ? RTType.DepthOutput : RTType.ColorOutput;
attachmentDescription = new VkAttachmentDescription(format, VkSampleCountFlags.Count1);
if (Device.IsDepthFormat(format))
{
ClearValue = new VkClearDepthStencilValue(1, 0);
id = "depth";
}
else
{
ClearValue = new VkClearColorValue(0, 0, 0, 1);
id = "output_color";
}
}
public AttachmentInfo(StringID id, SizeHint sizeHint, VkFormat format, VkImageUsageFlags usage, VkSampleCountFlags samples = VkSampleCountFlags.Count1)
{
this.id = id;
this.SizeHint = sizeHint;
this.Usage = usage;
attachmentDescription = new VkAttachmentDescription(format, samples);
if (Device.IsDepthFormat(format))
{
ClearValue = new VkClearDepthStencilValue(1, 0);
}
else
{
ClearValue = new VkClearColorValue(0, 0, 0, 1);
}
}
public AttachmentInfo(uint width, uint height, uint layers, VkFormat format, VkImageUsageFlags usage,
VkSampleCountFlags samples = VkSampleCountFlags.Count1)
{
this.Width = width;
this.Height = height;
this.Layers = layers;
this.Usage = usage;
attachmentDescription = new VkAttachmentDescription(format, samples);
if (Device.IsDepthFormat(format))
{
ClearValue = new VkClearDepthStencilValue(1, 0);
}
else
{
ClearValue = new VkClearColorValue(0, 0, 0, 1);
}
}
protected virtual void CreateRenderPass()
{
if (renderPassCreator != null)
{
RenderPass = renderPassCreator.Invoke();
}
else if (!renderTextureInfos.Empty())
{
var attachmentDescriptions = new VkAttachmentDescription[renderTextureInfos.Count];
var subpassDescriptions = new SubpassDescription[subpasses.Count];
var dependencies = new VkSubpassDependency[subpasses.Count + 1];
for (int i = 0; i < renderTextureInfos.Count; i++)
{
attachmentDescriptions[i] = renderTextureInfos[i].attachmentDescription;
}
dependencies[0] = new VkSubpassDependency
{
srcSubpass = Vulkan.SubpassExternal,
dstSubpass = 0,
srcStageMask = VkPipelineStageFlags.BottomOfPipe,
dstStageMask = VkPipelineStageFlags.ColorAttachmentOutput,
srcAccessMask = VkAccessFlags.MemoryRead,
dstAccessMask = (VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite),
dependencyFlags = VkDependencyFlags.ByRegion
};
for (int i = 0; i < subpasses.Count; i++)
{
subpasses[i].GetDescription(attachmentDescriptions, ref subpassDescriptions[i]);
if (i > 0)
{
//dependencies[i] = subpasses[i].Dependency;
dependencies[i].srcSubpass = (uint)(i - 1);
dependencies[i].dstSubpass = (uint)i;
dependencies[i].srcStageMask = VkPipelineStageFlags.ColorAttachmentOutput;
dependencies[i].dstStageMask = VkPipelineStageFlags.FragmentShader;
dependencies[i].srcAccessMask = VkAccessFlags.ColorAttachmentWrite;
dependencies[i].dstAccessMask = VkAccessFlags.InputAttachmentRead;
dependencies[i].dependencyFlags = VkDependencyFlags.ByRegion;
}
}
dependencies[subpasses.Count] = new VkSubpassDependency
{
srcSubpass = (uint)(subpasses.Count - 1),
dstSubpass = Vulkan.SubpassExternal,
srcStageMask = VkPipelineStageFlags.ColorAttachmentOutput,
dstStageMask = VkPipelineStageFlags.BottomOfPipe,
srcAccessMask = VkAccessFlags.ColorAttachmentRead | VkAccessFlags.ColorAttachmentWrite,
dstAccessMask = VkAccessFlags.MemoryRead,
dependencyFlags = VkDependencyFlags.ByRegion
};
RenderPass = new RenderPass(attachmentDescriptions, subpassDescriptions, dependencies);
}
if (RenderPass == null)
{
RenderPass = Graphics.RenderPass;
}
}
