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Add support for VK_EXT_depth_clip_control. (#5027)

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* Add support for VK_EXT_depth_clip_control.

* Code review feedback

Minor formatting

Co-authored-by: gdkchan <gab.dark.100@gmail.com>

* Check .DepthClipControl to make sure the host actually supports the feature.

* Review feedback: remove Vulkan platform switch, relying on QueryHostSupportsDepthClipControl to drive the behaviour - OpenGL returns true, and any future platforms that don't support the [-1, 1] depth mode can return false for the transformation.

---------

Co-authored-by: gdkchan <gab.dark.100@gmail.com>
This commit is contained in:
cstamford 2023-05-28 22:31:56 +01:00 • committed by GitHub
parent 994f4dc77d
commit dc0dbc50ab
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 87 additions and 5 deletions
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9
src/Ryujinx.Graphics.Shader/IGpuAccessor.cs
View file

@ -367,6 +367,15 @@ namespace Ryujinx.Graphics.Shader
return true;
}
/// <summary>
/// Queries whether the host supports depth clip control.
/// </summary>
/// <returns>True if the GPU and driver supports depth clip control, false otherwise</returns>
bool QueryHostSupportsDepthClipControl()
{
return true;
}
/// <summary>
/// Queries the point size from the GPU state, used when it is not explicitly set on the shader.
/// </summary>

4
src/Ryujinx.Graphics.Shader/Translation/EmitterContext.cs
View file

@ -246,7 +246,7 @@ namespace Ryujinx.Graphics.Shader.Translation
this.Store(StorageKind.Output, IoVariable.Position, null, Const(1), this.FPFusedMultiplyAdd(y, yScale, negativeOne));
}
if (Config.Options.TargetApi == TargetApi.Vulkan && Config.GpuAccessor.QueryTransformDepthMinusOneToOne())
if (Config.GpuAccessor.QueryTransformDepthMinusOneToOne() && !Config.GpuAccessor.QueryHostSupportsDepthClipControl())
{
Operand z = this.Load(StorageKind.Output, IoVariable.Position, null, Const(2));
Operand w = this.Load(StorageKind.Output, IoVariable.Position, null, Const(3));
@ -283,7 +283,7 @@ namespace Ryujinx.Graphics.Shader.Translation
oldYLocal = null;
}
if (Config.Options.TargetApi == TargetApi.Vulkan && Config.GpuAccessor.QueryTransformDepthMinusOneToOne())
if (Config.GpuAccessor.QueryTransformDepthMinusOneToOne() && !Config.GpuAccessor.QueryHostSupportsDepthClipControl())
{
oldZLocal = Local();
this.Copy(oldZLocal, this.Load(StorageKind.Output, IoVariable.Position, null, Const(2)));