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using Ryujinx.Graphics.GAL;
using Silk.NET.Vulkan;
namespace Ryujinx.Graphics.Vulkan
{
class SamplerHolder : ISampler
{
private readonly VulkanRenderer _gd;
private readonly Auto<DisposableSampler> _sampler;
public unsafe SamplerHolder(VulkanRenderer gd, Device device, GAL.SamplerCreateInfo info)
{
_gd = gd;
gd.Samplers.Add(this);
(Filter minFilter, SamplerMipmapMode mipFilter) = EnumConversion.Convert(info.MinFilter);
float minLod = info.MinLod;
float maxLod = info.MaxLod;
if (info.MinFilter == MinFilter.Nearest || info.MinFilter == MinFilter.Linear)
{
minLod = 0;
maxLod = 0.25f;
}
var borderColor = GetConstrainedBorderColor(info.BorderColor, out var cantConstrain);
var samplerCreateInfo = new Silk.NET.Vulkan.SamplerCreateInfo()
{
SType = StructureType.SamplerCreateInfo,
MagFilter = info.MagFilter.Convert(),
MinFilter = minFilter,
MipmapMode = mipFilter,
AddressModeU = info.AddressU.Convert(),
AddressModeV = info.AddressV.Convert(),
AddressModeW = info.AddressP.Convert(),
MipLodBias = info.MipLodBias,
AnisotropyEnable = info.MaxAnisotropy != 1f,
MaxAnisotropy = info.MaxAnisotropy,
CompareEnable = info.CompareMode == CompareMode.CompareRToTexture,
CompareOp = info.CompareOp.Convert(),
MinLod = minLod,
MaxLod = maxLod,
BorderColor = borderColor,
UnnormalizedCoordinates = false // TODO: Use unnormalized coordinates.
};
SamplerCustomBorderColorCreateInfoEXT customBorderColor;
if (cantConstrain && gd.Capabilities.SupportsCustomBorderColor)
{
var color = new ClearColorValue(
info.BorderColor.Red,
info.BorderColor.Green,
info.BorderColor.Blue,
info.BorderColor.Alpha);
customBorderColor = new SamplerCustomBorderColorCreateInfoEXT()
{
SType = StructureType.SamplerCustomBorderColorCreateInfoExt,
CustomBorderColor = color
};
samplerCreateInfo.PNext = &customBorderColor;
samplerCreateInfo.BorderColor = BorderColor.FloatCustomExt;
}
gd.Api.CreateSampler(device, samplerCreateInfo, null, out var sampler).ThrowOnError();
_sampler = new Auto<DisposableSampler>(new DisposableSampler(gd.Api, device, sampler));
}
private static BorderColor GetConstrainedBorderColor(ColorF arbitraryBorderColor, out bool cantConstrain)
{
float r = arbitraryBorderColor.Red;
float g = arbitraryBorderColor.Green;
float b = arbitraryBorderColor.Blue;
float a = arbitraryBorderColor.Alpha;
if (r == 0f && g == 0f && b == 0f)
{
if (a == 1f)
{
cantConstrain = false;
return BorderColor.FloatOpaqueBlack;
}
else if (a == 0f)
{
cantConstrain = false;
return BorderColor.FloatTransparentBlack;
}
}
else if (r == 1f && g == 1f && b == 1f && a == 1f)
{
cantConstrain = false;
return BorderColor.FloatOpaqueWhite;
}
cantConstrain = true;
return BorderColor.FloatOpaqueBlack;
}
public Auto<DisposableSampler> GetSampler()
{
return _sampler;
}
public void Dispose()
{
if (_gd.Samplers.Remove(this))
{
_sampler.Dispose();
}
}
}
}
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