private void CreateBackbuffers()
{
backbuffers = context.Device.GetSwapchainImages(swapchain);
backbufferViews = new SharpVulkan.ImageView[backbuffers.Length];
for (var i = 0; i < backbuffers.Length; i++)
{
var viewCreateInfo = new SharpVulkan.ImageViewCreateInfo {
StructureType = SharpVulkan.StructureType.ImageViewCreateInfo,
ViewType = SharpVulkan.ImageViewType.Image2D,
Image = backbuffers[i],
Format = backbufferFormat,
Components = SharpVulkan.ComponentMapping.Identity,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color)
};
backbufferViews[i] = context.Device.CreateImageView(ref viewCreateInfo);
}
acquirementSemaphores = new SharpVulkan.Semaphore[backbuffers.Length + 1];
for (var i = 0; i < backbuffers.Length + 1; i++)
{
var semaphoreCreateInfo = new SharpVulkan.SemaphoreCreateInfo {
StructureType = SharpVulkan.StructureType.SemaphoreCreateInfo
};
acquirementSemaphores[i] = context.Device.CreateSemaphore(ref semaphoreCreateInfo);
}
}
private void CreateDepthStencilBuffer()
{
var formats = new[] {
SharpVulkan.Format.D32SFloatS8UInt,
SharpVulkan.Format.D24UNormS8UInt,
SharpVulkan.Format.D16UNormS8UInt
};
depthStencilFormat = formats.First(format => {
context.PhysicalDevice.GetFormatProperties(format, out var formatProperties);
return((formatProperties.OptimalTilingFeatures & SharpVulkan.FormatFeatureFlags.DepthStencilAttachment) != 0);
});
var tiling = SharpVulkan.ImageTiling.Optimal;
var createInfo = new SharpVulkan.ImageCreateInfo {
StructureType = SharpVulkan.StructureType.ImageCreateInfo,
ImageType = SharpVulkan.ImageType.Image2D,
Usage = SharpVulkan.ImageUsageFlags.DepthStencilAttachment,
Format = depthStencilFormat,
Extent = new SharpVulkan.Extent3D((uint)width, (uint)height, 1),
MipLevels = 1,
ArrayLayers = 1,
Samples = SharpVulkan.SampleCountFlags.Sample1,
SharingMode = SharpVulkan.SharingMode.Exclusive,
Tiling = tiling,
InitialLayout = SharpVulkan.ImageLayout.Undefined
};
depthStencilBuffer = context.Device.CreateImage(ref createInfo);
depthStencilMemory = context.MemoryAllocator.Allocate(depthStencilBuffer, SharpVulkan.MemoryPropertyFlags.DeviceLocal, tiling);
var viewCreateInfo = new SharpVulkan.ImageViewCreateInfo {
StructureType = SharpVulkan.StructureType.ImageViewCreateInfo,
ViewType = SharpVulkan.ImageViewType.Image2D,
Image = depthStencilBuffer,
Format = depthStencilFormat,
Components = SharpVulkan.ComponentMapping.Identity,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(
SharpVulkan.ImageAspectFlags.Depth |
SharpVulkan.ImageAspectFlags.Stencil)
};
depthStencilView = context.Device.CreateImageView(ref viewCreateInfo);
var memoryBarrier = new SharpVulkan.ImageMemoryBarrier {
StructureType = SharpVulkan.StructureType.ImageMemoryBarrier,
Image = depthStencilBuffer,
OldLayout = SharpVulkan.ImageLayout.Undefined,
NewLayout = SharpVulkan.ImageLayout.DepthStencilAttachmentOptimal,
SourceAccessMask = SharpVulkan.AccessFlags.None,
DestinationAccessMask = SharpVulkan.AccessFlags.DepthStencilAttachmentRead | SharpVulkan.AccessFlags.DepthStencilAttachmentWrite,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(
SharpVulkan.ImageAspectFlags.Depth |
SharpVulkan.ImageAspectFlags.Stencil)
};
context.EndRenderPass();
context.EnsureCommandBuffer();
context.CommandBuffer.PipelineBarrier(SharpVulkan.PipelineStageFlags.TopOfPipe,
SharpVulkan.PipelineStageFlags.EarlyFragmentTests | SharpVulkan.PipelineStageFlags.LateFragmentTests,
SharpVulkan.DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
}
private void Create(bool renderTarget)
{
var vkFormat = VulkanHelper.GetVKFormat(format);
var usage =
SharpVulkan.ImageUsageFlags.TransferSource |
SharpVulkan.ImageUsageFlags.TransferDestination |
SharpVulkan.ImageUsageFlags.Sampled;
if (renderTarget)
{
usage |= SharpVulkan.ImageUsageFlags.ColorAttachment;
}
var tiling = SharpVulkan.ImageTiling.Optimal;
var imageCreateInfo = new SharpVulkan.ImageCreateInfo {
StructureType = SharpVulkan.StructureType.ImageCreateInfo,
ImageType = SharpVulkan.ImageType.Image2D,
Usage = usage,
Format = vkFormat,
Extent = new SharpVulkan.Extent3D((uint)width, (uint)height, 1),
MipLevels = (uint)levelCount,
ArrayLayers = 1,
Samples = SharpVulkan.SampleCountFlags.Sample1,
SharingMode = SharpVulkan.SharingMode.Exclusive,
InitialLayout = SharpVulkan.ImageLayout.Undefined,
Tiling = tiling
};
image = context.Device.CreateImage(ref imageCreateInfo);
var memoryPropertyFlags = SharpVulkan.MemoryPropertyFlags.DeviceLocal;
if (IsPvrtc1Format(Format))
{
memoryPropertyFlags |= SharpVulkan.MemoryPropertyFlags.HostVisible | SharpVulkan.MemoryPropertyFlags.HostCoherent;
}
memory = context.MemoryAllocator.Allocate(image, memoryPropertyFlags, tiling);
var viewCreateInfo = new SharpVulkan.ImageViewCreateInfo {
StructureType = SharpVulkan.StructureType.ImageViewCreateInfo,
ViewType = SharpVulkan.ImageViewType.Image2D,
Image = image,
Format = vkFormat,
Components = SharpVulkan.ComponentMapping.Identity,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color)
};
imageView = context.Device.CreateImageView(ref viewCreateInfo);
var memoryBarrier = new SharpVulkan.ImageMemoryBarrier {
StructureType = SharpVulkan.StructureType.ImageMemoryBarrier,
Image = image,
OldLayout = SharpVulkan.ImageLayout.Undefined,
NewLayout = SharpVulkan.ImageLayout.ShaderReadOnlyOptimal,
SourceAccessMask = SharpVulkan.AccessFlags.None,
DestinationAccessMask = SharpVulkan.AccessFlags.ShaderRead,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color)
};
context.EndRenderPass();
context.EnsureCommandBuffer();
context.CommandBuffer.PipelineBarrier(
SharpVulkan.PipelineStageFlags.TopOfPipe, SharpVulkan.PipelineStageFlags.VertexShader | SharpVulkan.PipelineStageFlags.FragmentShader,
SharpVulkan.DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
}
