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using Ryujinx.Graphics.GAL;
using Silk.NET.Vulkan;
using System;
using System.Linq;
using VkFormat = Silk.NET.Vulkan.Format;
namespace Ryujinx.Graphics.Vulkan
{
class FramebufferParams
{
private readonly Device _device;
private readonly Auto<DisposableImageView>[] _attachments;
private readonly TextureView[] _colors;
private readonly TextureView _depthStencil;
private uint _validColorAttachments;
public uint Width { get; }
public uint Height { get; }
public uint Layers { get; }
public uint[] AttachmentSamples { get; }
public VkFormat[] AttachmentFormats { get; }
public int[] AttachmentIndices { get; }
public int AttachmentsCount { get; }
public int MaxColorAttachmentIndex { get; }
public bool HasDepthStencil { get; }
public int ColorAttachmentsCount => AttachmentsCount - (HasDepthStencil ? 1 : 0);
public FramebufferParams(
Device device,
Auto<DisposableImageView> view,
uint width,
uint height,
uint samples,
bool isDepthStencil,
VkFormat format)
{
_device = device;
_attachments = new[] { view };
_validColorAttachments = 1u;
Width = width;
Height = height;
Layers = 1;
AttachmentSamples = new[] { samples };
AttachmentFormats = new[] { format };
AttachmentIndices = new[] { 0 };
AttachmentsCount = 1;
HasDepthStencil = isDepthStencil;
}
public FramebufferParams(Device device, ITexture[] colors, ITexture depthStencil)
{
_device = device;
int colorsCount = colors.Count(IsValidTextureView);
int count = colorsCount + (IsValidTextureView(depthStencil) ? 1 : 0);
_attachments = new Auto<DisposableImageView>[count];
_colors = new TextureView[colorsCount];
AttachmentSamples = new uint[count];
AttachmentFormats = new VkFormat[count];
AttachmentIndices = new int[count];
MaxColorAttachmentIndex = colors.Length - 1;
uint width = uint.MaxValue;
uint height = uint.MaxValue;
uint layers = uint.MaxValue;
int index = 0;
int bindIndex = 0;
foreach (ITexture color in colors)
{
if (IsValidTextureView(color))
{
var texture = (TextureView)color;
_attachments[index] = texture.GetImageViewForAttachment();
_colors[index] = texture;
_validColorAttachments |= 1u << bindIndex;
AttachmentSamples[index] = (uint)texture.Info.Samples;
AttachmentFormats[index] = texture.VkFormat;
AttachmentIndices[index] = bindIndex;
width = Math.Min(width, (uint)texture.Width);
height = Math.Min(height, (uint)texture.Height);
layers = Math.Min(layers, (uint)texture.Layers);
if (++index >= colorsCount)
{
break;
}
}
bindIndex++;
}
if (depthStencil is TextureView dsTexture && dsTexture.Valid)
{
_attachments[count - 1] = dsTexture.GetImageViewForAttachment();
_depthStencil = dsTexture;
AttachmentSamples[count - 1] = (uint)dsTexture.Info.Samples;
AttachmentFormats[count - 1] = dsTexture.VkFormat;
width = Math.Min(width, (uint)dsTexture.Width);
height = Math.Min(height, (uint)dsTexture.Height);
layers = Math.Min(layers, (uint)dsTexture.Layers);
HasDepthStencil = true;
}
if (count == 0)
{
width = height = layers = 1;
}
Width = width;
Height = height;
Layers = layers;
AttachmentsCount = count;
}
public Auto<DisposableImageView> GetAttachment(int index)
{
if ((uint)index >= _attachments.Length)
{
return null;
}
return _attachments[index];
}
public bool IsValidColorAttachment(int bindIndex)
{
return (uint)bindIndex < Constants.MaxRenderTargets && (_validColorAttachments & (1u << bindIndex)) != 0;
}
private static bool IsValidTextureView(ITexture texture)
{
return texture is TextureView view && view.Valid;
}
public ClearRect GetClearRect(Rectangle<int> scissor, int layer, int layerCount)
{
int x = scissor.X;
int y = scissor.Y;
int width = Math.Min((int)Width - scissor.X, scissor.Width);
int height = Math.Min((int)Height - scissor.Y, scissor.Height);
return new ClearRect(new Rect2D(new Offset2D(x, y), new Extent2D((uint)width, (uint)height)), (uint)layer, (uint)layerCount);
}
public unsafe Auto<DisposableFramebuffer> Create(Vk api, CommandBufferScoped cbs, Auto<DisposableRenderPass> renderPass)
{
ImageView* attachments = stackalloc ImageView[_attachments.Length];
for (int i = 0; i < _attachments.Length; i++)
{
attachments[i] = _attachments[i].Get(cbs).Value;
}
var framebufferCreateInfo = new FramebufferCreateInfo()
{
SType = StructureType.FramebufferCreateInfo,
RenderPass = renderPass.Get(cbs).Value,
AttachmentCount = (uint)_attachments.Length,
PAttachments = attachments,
Width = Width,
Height = Height,
Layers = Layers
};
api.CreateFramebuffer(_device, framebufferCreateInfo, null, out var framebuffer).ThrowOnError();
return new Auto<DisposableFramebuffer>(new DisposableFramebuffer(api, _device, framebuffer), null, _attachments);
}
public void UpdateModifications()
{
if (_colors != null)
{
for (int index = 0; index < _colors.Length; index++)
{
_colors[index].Storage.SetModification(
AccessFlags.ColorAttachmentWriteBit,
PipelineStageFlags.ColorAttachmentOutputBit);
}
}
_depthStencil?.Storage.SetModification(
AccessFlags.DepthStencilAttachmentWriteBit,
PipelineStageFlags.ColorAttachmentOutputBit);
}
}
}
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