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using Ryujinx.Common.Logging;
using Ryujinx.Graphics.GAL;
using Silk.NET.Vulkan;
using System;
using VkFormat = Silk.NET.Vulkan.Format;
namespace Ryujinx.Graphics.Vulkan
{
class FormatCapabilities
{
private readonly FormatFeatureFlags[] _bufferTable;
private readonly FormatFeatureFlags[] _optimalTable;
private readonly Vk _api;
private readonly PhysicalDevice _physicalDevice;
public FormatCapabilities(Vk api, PhysicalDevice physicalDevice)
{
_api = api;
_physicalDevice = physicalDevice;
int totalFormats = Enum.GetNames(typeof(GAL.Format)).Length;
_bufferTable = new FormatFeatureFlags[totalFormats];
_optimalTable = new FormatFeatureFlags[totalFormats];
}
public bool BufferFormatsSupport(FormatFeatureFlags flags, params GAL.Format[] formats)
{
foreach (GAL.Format format in formats)
{
if (!BufferFormatSupports(flags, format))
{
return false;
}
}
return true;
}
public bool OptimalFormatsSupport(FormatFeatureFlags flags, params GAL.Format[] formats)
{
foreach (GAL.Format format in formats)
{
if (!OptimalFormatSupports(flags, format))
{
return false;
}
}
return true;
}
public bool BufferFormatSupports(FormatFeatureFlags flags, GAL.Format format)
{
var formatFeatureFlags = _bufferTable[(int)format];
if (formatFeatureFlags == 0)
{
_api.GetPhysicalDeviceFormatProperties(_physicalDevice, FormatTable.GetFormat(format), out var fp);
formatFeatureFlags = fp.BufferFeatures;
_bufferTable[(int)format] = formatFeatureFlags;
}
return (formatFeatureFlags & flags) == flags;
}
public bool OptimalFormatSupports(FormatFeatureFlags flags, GAL.Format format)
{
var formatFeatureFlags = _optimalTable[(int)format];
if (formatFeatureFlags == 0)
{
_api.GetPhysicalDeviceFormatProperties(_physicalDevice, FormatTable.GetFormat(format), out var fp);
formatFeatureFlags = fp.OptimalTilingFeatures;
_optimalTable[(int)format] = formatFeatureFlags;
}
return (formatFeatureFlags & flags) == flags;
}
public VkFormat ConvertToVkFormat(GAL.Format srcFormat)
{
var format = FormatTable.GetFormat(srcFormat);
var requiredFeatures = FormatFeatureFlags.SampledImageBit |
FormatFeatureFlags.TransferSrcBit |
FormatFeatureFlags.TransferDstBit;
if (srcFormat.IsDepthOrStencil())
{
requiredFeatures |= FormatFeatureFlags.DepthStencilAttachmentBit;
}
else if (srcFormat.IsRtColorCompatible())
{
requiredFeatures |= FormatFeatureFlags.ColorAttachmentBit;
}
if (srcFormat.IsImageCompatible())
{
requiredFeatures |= FormatFeatureFlags.StorageImageBit;
}
if (!OptimalFormatSupports(requiredFeatures, srcFormat) || (IsD24S8(srcFormat) && VulkanConfiguration.ForceD24S8Unsupported))
{
// The format is not supported. Can we convert it to a higher precision format?
if (IsD24S8(srcFormat))
{
format = VkFormat.D32SfloatS8Uint;
}
else if (srcFormat == GAL.Format.R4G4B4A4Unorm)
{
format = VkFormat.R4G4B4A4UnormPack16;
}
else
{
Logger.Error?.Print(LogClass.Gpu, $"Format {srcFormat} is not supported by the host.");
}
}
return format;
}
public VkFormat ConvertToVertexVkFormat(GAL.Format srcFormat)
{
var format = FormatTable.GetFormat(srcFormat);
if (!BufferFormatSupports(FormatFeatureFlags.VertexBufferBit, srcFormat) ||
(IsRGB16IntFloat(srcFormat) && VulkanConfiguration.ForceRGB16IntFloatUnsupported))
{
// The format is not supported. Can we convert it to an alternative format?
switch (srcFormat)
{
case GAL.Format.R16G16B16Float:
format = VkFormat.R16G16B16A16Sfloat;
break;
case GAL.Format.R16G16B16Sint:
format = VkFormat.R16G16B16A16Sint;
break;
case GAL.Format.R16G16B16Uint:
format = VkFormat.R16G16B16A16Uint;
break;
default:
Logger.Error?.Print(LogClass.Gpu, $"Format {srcFormat} is not supported by the host.");
break;
}
}
return format;
}
public static bool IsD24S8(GAL.Format format)
{
return format == GAL.Format.D24UnormS8Uint || format == GAL.Format.S8UintD24Unorm;
}
private static bool IsRGB16IntFloat(GAL.Format format)
{
return format == GAL.Format.R16G16B16Float ||
format == GAL.Format.R16G16B16Sint ||
format == GAL.Format.R16G16B16Uint;
}
}
}
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