void CreateDepthStencil(IMgCommandBuffer setupCmdBuffer, MgGraphicsDeviceCreateInfo createInfo)
{
var image = new MgImageCreateInfo {
ImageType = MgImageType.TYPE_2D,
Format = createInfo.DepthStencil,
Extent = new MgExtent3D {
Width = createInfo.Width,
Height = createInfo.Height,
Depth = 1
},
MipLevels = 1,
ArrayLayers = 1,
Samples = createInfo.Samples,
Tiling = MgImageTiling.OPTIMAL,
// TODO : multisampled uses MgImageUsageFlagBits.TRANSIENT_ATTACHMENT_BIT | MgImageUsageFlagBits.DEPTH_STENCIL_ATTACHMENT_BIT;
Usage = MgImageUsageFlagBits.DEPTH_STENCIL_ATTACHMENT_BIT | MgImageUsageFlagBits.TRANSFER_SRC_BIT,
Flags = 0,
};
var mem_alloc = new MgMemoryAllocateInfo {
AllocationSize = 0,
MemoryTypeIndex = 0,
};
MgMemoryRequirements memReqs;
Debug.Assert(mGraphicsConfiguration.Partition != null);
Result err;
{
IMgImage dsImage;
err = mGraphicsConfiguration.Partition.Device.CreateImage(image, null, out dsImage);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
mImage = dsImage;
}
mGraphicsConfiguration.Partition.Device.GetImageMemoryRequirements(mImage, out memReqs);
mem_alloc.AllocationSize = memReqs.Size;
uint memTypeIndex;
bool memoryTypeFound = mGraphicsConfiguration.Partition.GetMemoryType(memReqs.MemoryTypeBits, MgMemoryPropertyFlagBits.DEVICE_LOCAL_BIT, out memTypeIndex);
Debug.Assert(memoryTypeFound);
mem_alloc.MemoryTypeIndex = memTypeIndex;
{
IMgDeviceMemory dsDeviceMemory;
err = mGraphicsConfiguration.Partition.Device.AllocateMemory(mem_alloc, null, out dsDeviceMemory);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
mDeviceMemory = dsDeviceMemory;
}
err = mImage.BindImageMemory(mGraphicsConfiguration.Partition.Device, mDeviceMemory, 0);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
mImageTools.SetImageLayout(setupCmdBuffer, mImage, MgImageAspectFlagBits.DEPTH_BIT | MgImageAspectFlagBits.STENCIL_BIT, MgImageLayout.UNDEFINED, MgImageLayout.DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
var depthStencilView = new MgImageViewCreateInfo {
Image = mImage,
ViewType = MgImageViewType.TYPE_2D,
Format = createInfo.DepthStencil,
Flags = 0,
SubresourceRange = new MgImageSubresourceRange {
AspectMask = MgImageAspectFlagBits.DEPTH_BIT | MgImageAspectFlagBits.STENCIL_BIT,
BaseMipLevel = 0,
LevelCount = 1,
BaseArrayLayer = 0,
LayerCount = 1,
},
};
{
IMgImageView dsView;
err = mGraphicsConfiguration.Partition.Device.CreateImageView(depthStencilView, null, out dsView);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
mDepthStencilImageView = dsView;
}
}
public void Create(IMgCommandBuffer cmd, UInt32 width, UInt32 height)
{
mWidth = width;
mHeight = height;
Result err;
IMgSwapchainKHR oldSwapchain = mSwapChain;
Setup();
// Get physical device surface properties and formats
MgSurfaceCapabilitiesKHR surfCaps;
err = mPartition.PhysicalDevice.GetPhysicalDeviceSurfaceCapabilitiesKHR(mLayer.Surface, out surfCaps);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
// Get available present modes
MgPresentModeKHR[] presentModes;
err = mPartition.PhysicalDevice.GetPhysicalDeviceSurfacePresentModesKHR(mLayer.Surface, out presentModes);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
var swapchainExtent = new MgExtent2D {
};
// width and height are either both -1, or both not -1.
if ((int)surfCaps.CurrentExtent.Width == -1)
{
// If the surface size is undefined, the size is set to
// the size of the images requested.
swapchainExtent.Width = mWidth;
swapchainExtent.Height = mHeight;
}
else
{
// If the surface size is defined, the swap chain size must match
swapchainExtent = surfCaps.CurrentExtent;
mWidth = surfCaps.CurrentExtent.Width;
mHeight = surfCaps.CurrentExtent.Height;
}
// Prefer mailbox mode if present, it's the lowest latency non-tearing present mode
MgPresentModeKHR swapchainPresentMode = MgPresentModeKHR.FIFO_KHR;
for (uint i = 0; i < presentModes.Length; i++)
{
if (presentModes[i] == MgPresentModeKHR.MAILBOX_KHR)
{
swapchainPresentMode = MgPresentModeKHR.MAILBOX_KHR;
break;
}
if ((swapchainPresentMode != MgPresentModeKHR.MAILBOX_KHR) && (presentModes[i] == MgPresentModeKHR.IMMEDIATE_KHR))
{
swapchainPresentMode = MgPresentModeKHR.IMMEDIATE_KHR;
}
}
// Determine the number of images
uint desiredNumberOfSwapchainImages = surfCaps.MinImageCount + 1;
if ((surfCaps.MaxImageCount > 0) && (desiredNumberOfSwapchainImages > surfCaps.MaxImageCount))
{
desiredNumberOfSwapchainImages = surfCaps.MaxImageCount;
}
MgSurfaceTransformFlagBitsKHR preTransform;
if ((surfCaps.SupportedTransforms & MgSurfaceTransformFlagBitsKHR.IDENTITY_BIT_KHR) != 0)
{
preTransform = MgSurfaceTransformFlagBitsKHR.IDENTITY_BIT_KHR;
}
else
{
preTransform = surfCaps.CurrentTransform;
}
var swapchainCI = new MgSwapchainCreateInfoKHR {
Surface = mLayer.Surface,
MinImageCount = desiredNumberOfSwapchainImages,
ImageFormat = Format,
ImageColorSpace = mColorSpace,
ImageExtent = swapchainExtent,
ImageUsage = MgImageUsageFlagBits.COLOR_ATTACHMENT_BIT,
PreTransform = (MgSurfaceTransformFlagBitsKHR)preTransform,
ImageArrayLayers = 1,
ImageSharingMode = MgSharingMode.EXCLUSIVE,
QueueFamilyIndices = null,
PresentMode = swapchainPresentMode,
OldSwapchain = oldSwapchain,
Clipped = true,
CompositeAlpha = MgCompositeAlphaFlagBitsKHR.OPAQUE_BIT_KHR,
};
err = mPartition.Device.CreateSwapchainKHR(swapchainCI, null, out mSwapChain);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
// If an existing swap chain is re-created, destroy the old swap chain
// This also cleans up all the presentable images
if (oldSwapchain != null)
{
for (uint i = 0; i < mImageCount; i++)
{
mBuffers[i].View.DestroyImageView(mPartition.Device, null);
}
oldSwapchain.DestroySwapchainKHR(mPartition.Device, null);
}
// Get the swap chain images
err = mPartition.Device.GetSwapchainImagesKHR(mSwapChain, out mImages);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
// Get the swap chain buffers containing the image and imageview
mImageCount = (uint)mImages.Length;
mBuffers = new MgSwapchainBuffer[mImageCount];
for (uint i = 0; i < mImageCount; i++)
{
var buffer = new MgSwapchainBuffer();
var colorAttachmentView = new MgImageViewCreateInfo {
Format = Format,
Components = new MgComponentMapping {
R = MgComponentSwizzle.R,
G = MgComponentSwizzle.G,
B = MgComponentSwizzle.B,
A = MgComponentSwizzle.A,
},
SubresourceRange = new MgImageSubresourceRange
{
AspectMask = MgImageAspectFlagBits.COLOR_BIT,
BaseMipLevel = 0,
LevelCount = 1,
BaseArrayLayer = 0,
LayerCount = 1,
},
ViewType = MgImageViewType.TYPE_2D,
Flags = 0,
};
buffer.Image = mImages[i];
// Transform images from initial (undefined) to present layout
mImageTools.SetImageLayout(
cmd,
buffer.Image,
MgImageAspectFlagBits.COLOR_BIT,
MgImageLayout.UNDEFINED,
MgImageLayout.PRESENT_SRC_KHR);
colorAttachmentView.Image = buffer.Image;
IMgImageView bufferView;
err = mPartition.Device.CreateImageView(colorAttachmentView, null, out bufferView);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
buffer.View = bufferView;
mBuffers [i] = buffer;
}
}
