void CreateFramebuffers(IMgSwapchainCollection swapchains, MgGraphicsDeviceCreateInfo createInfo)
{
//IMgFramebuffer[] SetupFrameBuffers(IMgRenderPass renderPass, IMgDepthStencilBuffer depthStencil, IMgSwapchainCollection swapChain, uint width, uint height)
//{
// Create frame buffers for every swap chain image
var frameBuffers = new IMgFramebuffer[swapchains.Buffers.Length];
for (uint i = 0; i < frameBuffers.Length; i++)
{
var frameBufferCreateInfo = new MgFramebufferCreateInfo
{
RenderPass = mRenderpass,
Attachments = new []
{
swapchains.Buffers[i].View,
// Depth/Stencil attachment is the same for all frame buffers
mView,
},
Width = createInfo.Width,
Height = createInfo.Height,
Layers = 1,
};
var err = mPartition.Device.CreateFramebuffer(frameBufferCreateInfo, null, out frameBuffers[i]);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
}
mFramebuffers = frameBuffers;
}
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;
}
}
void CreateRenderpass(MgGraphicsDeviceCreateInfo createInfo)
{
var attachments = new []
{
// Color attachment[0]
new MgAttachmentDescription {
Format = createInfo.Color,
// TODO : multisampling
Samples = MgSampleCountFlagBits.COUNT_1_BIT,
LoadOp = MgAttachmentLoadOp.CLEAR,
StoreOp = MgAttachmentStoreOp.STORE,
StencilLoadOp = MgAttachmentLoadOp.DONT_CARE,
StencilStoreOp = MgAttachmentStoreOp.DONT_CARE,
InitialLayout = MgImageLayout.COLOR_ATTACHMENT_OPTIMAL,
FinalLayout = MgImageLayout.COLOR_ATTACHMENT_OPTIMAL,
},
// Depth attachment[1]
new MgAttachmentDescription {
Format = createInfo.DepthStencil,
// TODO : multisampling
Samples = MgSampleCountFlagBits.COUNT_1_BIT,
LoadOp = MgAttachmentLoadOp.CLEAR,
StoreOp = MgAttachmentStoreOp.STORE,
// TODO : activate stencil if needed
StencilLoadOp = MgAttachmentLoadOp.DONT_CARE,
StencilStoreOp = MgAttachmentStoreOp.DONT_CARE,
InitialLayout = MgImageLayout.DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
FinalLayout = MgImageLayout.DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
}
};
var colorReference = new MgAttachmentReference
{
Attachment = 0,
Layout = MgImageLayout.COLOR_ATTACHMENT_OPTIMAL,
};
var depthReference = new MgAttachmentReference {
Attachment = 1,
Layout = MgImageLayout.DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
};
var subpass = new MgSubpassDescription
{
PipelineBindPoint = MgPipelineBindPoint.GRAPHICS,
Flags = 0,
InputAttachments = null,
ColorAttachments = new [] { colorReference },
ResolveAttachments = null,
DepthStencilAttachment = depthReference,
PreserveAttachments = null,
};
var renderPassInfo = new MgRenderPassCreateInfo {
Attachments = attachments,
Subpasses = new [] { subpass },
Dependencies = null,
};
Result err;
IMgRenderPass renderPass;
err = mGraphicsConfiguration.Partition.Device.CreateRenderPass(renderPassInfo, null, out renderPass);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
mRenderpass = renderPass;
}
public void Create(IMgCommandBuffer setupCmdBuffer, IMgSwapchainCollection swapchainCollection, MgGraphicsDeviceCreateInfo createInfo)
{
if (setupCmdBuffer == null)
{
throw new ArgumentNullException(nameof(setupCmdBuffer));
}
if (createInfo == null)
{
throw new ArgumentNullException(nameof(createInfo));
}
if (swapchainCollection == null)
{
throw new ArgumentNullException(nameof(swapchainCollection));
}
Setup();
// Check if device supports requested sample count for color and depth frame buffer
if (
(mProperties.Limits.FramebufferColorSampleCounts < createInfo.Samples) ||
(mProperties.Limits.FramebufferDepthSampleCounts < createInfo.Samples))
{
throw new ArgumentOutOfRangeException("createInfo.Samples",
"MgDefaultDepthStencilBuffer : This physical device cannot fulfil the requested sample count for BOTH color and depth frame buffer");
}
ReleaseUnmanagedResources();
mDeviceCreated = false;
CreateDepthStencil(setupCmdBuffer, createInfo);
CreateRenderpass(createInfo);
swapchainCollection.Create(setupCmdBuffer, createInfo.Width, createInfo.Height);
mFramebuffers.Create(swapchainCollection, mRenderpass, mDepthStencilImageView, createInfo.Width, createInfo.Height);
Scissor = new MgRect2D {
Extent = new MgExtent2D {
Width = createInfo.Width, Height = createInfo.Height
},
Offset = new MgOffset2D {
X = 0, Y = 0
},
};
// initialize viewport
CurrentViewport = new MgViewport {
Width = createInfo.Width,
Height = createInfo.Height,
X = 0,
Y = 0,
MinDepth = 0f,
MaxDepth = 1f,
};
mDeviceCreated = true;
}
