private void InitializeVertexDescriptor(MgPipelineVertexInputStateCreateInfo vertexInput)
{
{
var noOfBindings = vertexInput.VertexBindingDescriptions.Length;
Layouts = new AmtGraphicsPipelineVertexLayoutBinding[noOfBindings];
for (var i = 0; i < noOfBindings; ++i)
{
var binding = vertexInput.VertexBindingDescriptions[i];
Layouts[i] = new AmtGraphicsPipelineVertexLayoutBinding
{
Index = (nint)i,
StepFunction = TranslateStepFunction(binding.InputRate),
Stride = (nuint)binding.Stride,
};
}
}
{
var noOfAttributes = vertexInput.VertexAttributeDescriptions.Length;
Attributes = new AmtGraphicsPipelineVertexAttribute[noOfAttributes];
for (var i = 0; i < noOfAttributes; ++i)
{
var attribute = vertexInput.VertexAttributeDescriptions[i];
Attributes[i] = new AmtGraphicsPipelineVertexAttribute
{
Index = (nint)i,
Offset = attribute.Offset,
BufferIndex = (nuint)attribute.Binding,
Format = AmtFormatExtensions.GetVertexFormat(attribute.Format),
};
}
}
}
public void InitializeFormat(MTLRenderPipelineDescriptor dest)
{
nint colorAttachmentIndex = 0;
foreach (var attachment in ColorAttachments)
{
dest.ColorAttachments[colorAttachmentIndex].PixelFormat = AmtFormatExtensions.GetPixelFormat(attachment.Format);
++colorAttachmentIndex;
}
if (DepthStencil != null)
{
dest.DepthAttachmentPixelFormat = AmtFormatExtensions.GetPixelFormat(DepthStencil.Format);
dest.StencilAttachmentPixelFormat = AmtFormatExtensions.GetPixelFormat(DepthStencil.Format);
}
}
public AmtImageView(MgImageViewCreateInfo pCreateInfo)
{
if (pCreateInfo == null)
{
throw new ArgumentNullException(nameof(pCreateInfo));
}
if (pCreateInfo.Image == null)
{
throw new ArgumentNullException(nameof(pCreateInfo.Image));
}
var bImage = (AmtImage)pCreateInfo.Image;
mImageView = bImage.OriginalTexture.CreateTextureView(
AmtFormatExtensions.GetPixelFormat(pCreateInfo.Format),
TranslateTextureType(pCreateInfo.ViewType),
GenerateLevelRange(pCreateInfo.SubresourceRange),
GenerateSliceRange(pCreateInfo.SubresourceRange));
}
public Result CreateImage(MgImageCreateInfo pCreateInfo, IMgAllocationCallbacks allocator, out IMgImage pImage)
{
Debug.Assert(pCreateInfo != null);
var depth = (nuint)pCreateInfo.Extent.Depth;
var height = (nuint)pCreateInfo.Extent.Height;
var width = (nuint)pCreateInfo.Extent.Width;
var arrayLayers = (nuint)pCreateInfo.ArrayLayers;
var mipLevels = (nuint)pCreateInfo.MipLevels;
//TODO : Figure this out
var storageMode = MTLStorageMode.Shared;
var resourceOptions = MTLResourceOptions.CpuCacheModeDefault;
var cpuCacheMode = MTLCpuCacheMode.DefaultCache;
var descriptor = new MTLTextureDescriptor
{
ArrayLength = arrayLayers,
PixelFormat = AmtFormatExtensions.GetPixelFormat(pCreateInfo.Format),
SampleCount = AmtSampleCountFlagBitExtensions.TranslateSampleCount(pCreateInfo.Samples),
TextureType = TranslateTextureType(pCreateInfo.ImageType),
StorageMode = storageMode,
Width = width,
Height = height,
Depth = depth,
MipmapLevelCount = mipLevels,
Usage = TranslateUsage(pCreateInfo.Usage),
ResourceOptions = resourceOptions,
CpuCacheMode = cpuCacheMode,
};
var texture = mDevice.CreateTexture(descriptor);
pImage = new AmtImage(texture);
return(Result.SUCCESS);
}
public void Create(IMgCommandBuffer setupCmdBuffer, IMgSwapchainCollection swapchainCollection, MgGraphicsDeviceCreateInfo dsCreateInfo)
{
if (dsCreateInfo == null)
{
throw new ArgumentNullException(nameof(dsCreateInfo));
}
if (swapchainCollection == null)
{
throw new ArgumentNullException(nameof(swapchainCollection));
}
mDeviceCreated = false;
var colorFormat = AmtFormatExtensions.GetPixelFormat(dsCreateInfo.Color);
var depthFormat = AmtFormatExtensions.GetPixelFormat(dsCreateInfo.DepthStencil);
var sampleCount = AmtSampleCountFlagBitExtensions.TranslateSampleCount(dsCreateInfo.Samples);
ReleaseUnmanagedResources();
mApplicationView.SampleCount = sampleCount;
// FIXME : RUNTIME ISSUE WITH SETTING COLOR FORMAT; SHOULD "FIGURE" OUT APPROPRIATE COLOR FORMAT SOMEHOW
mApplicationView.ColorPixelFormat = colorFormat;
mApplicationView.DepthStencilPixelFormat = depthFormat;
CreateDepthStencilImageView();
CreateRenderpass(dsCreateInfo);
var bSwapchainCollection = (AmtSwapchainCollection)swapchainCollection;
bSwapchainCollection.Format = dsCreateInfo.Color;
bSwapchainCollection.Create(setupCmdBuffer, dsCreateInfo.Width, dsCreateInfo.Height);
mFramebuffers.Create(
swapchainCollection,
mRenderpass,
mDepthStencilView,
dsCreateInfo.Width,
dsCreateInfo.Height);
Scissor = new MgRect2D
{
Extent = new MgExtent2D {
Width = dsCreateInfo.Width, Height = dsCreateInfo.Height
},
Offset = new MgOffset2D {
X = 0, Y = 0
},
};
// initialise viewport
CurrentViewport = new MgViewport
{
Width = dsCreateInfo.Width,
Height = dsCreateInfo.Height,
X = 0,
Y = 0,
MinDepth = 0f,
MaxDepth = 1f,
};
mDeviceCreated = true;
}
void CreateRenderpass(MgGraphicsDeviceCreateInfo createInfo)
{
bool isStencilFormat = AmtFormatExtensions.IsStencilFormat(createInfo.DepthStencil);
var attachments = new[]
{
// Color attachment[0]
new MgAttachmentDescription {
Format = createInfo.Color,
// TODO : multisampling
Samples = createInfo.Samples,
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 = createInfo.Samples,
LoadOp = MgAttachmentLoadOp.CLEAR,
StoreOp = MgAttachmentStoreOp.STORE,
// activate stencil if needed
StencilLoadOp = isStencilFormat ? MgAttachmentLoadOp.CLEAR : MgAttachmentLoadOp.DONT_CARE,
StencilStoreOp = isStencilFormat ? MgAttachmentStoreOp.STORE : 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,
ColorAttachmentCount = 1,
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 = mConfiguration.Device.CreateRenderPass(renderPassInfo, null, out renderPass);
Debug.Assert(err == Result.SUCCESS, err + " != Result.SUCCESS");
mRenderpass = renderPass;
}
