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Implement geometry shader passthrough (#1961)

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* Implement geometry shader passthrough

* Cache version change
This commit is contained in:
gdkchan 2021-01-29 00:38:51 -03:00 • committed by GitHub
parent 9c2f851d39
commit f93089a64f
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 47 additions and 18 deletions
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52
Ryujinx.Graphics.Shader/CodeGen/Glsl/Declarations.cs
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@ -26,6 +26,11 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
context.AppendLine("#extension GL_ARB_compute_shader : enable");
}
if (context.Config.GpPassthrough)
{
context.AppendLine("#extension GL_NV_geometry_shader_passthrough : enable");
}
context.AppendLine("#pragma optionNV(fastmath off)");
context.AppendLine();
@ -33,20 +38,6 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
context.AppendLine($"const int {DefaultNames.UndefinedName} = 0;");
context.AppendLine();
if (context.Config.Stage == ShaderStage.Geometry)
{
string inPrimitive = context.Config.GpuAccessor.QueryPrimitiveTopology().ToGlslString();
context.AppendLine($"layout ({inPrimitive}) in;");
string outPrimitive = context.Config.OutputTopology.ToGlslString();
int maxOutputVertices = context.Config.MaxOutputVertices;
context.AppendLine($"layout ({outPrimitive}, max_vertices = {maxOutputVertices}) out;");
context.AppendLine();
}
if (context.Config.Stage == ShaderStage.Compute)
{
int localMemorySize = BitUtils.DivRoundUp(context.Config.GpuAccessor.QueryComputeLocalMemorySize(), 4);
@ -109,6 +100,33 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
if (context.Config.Stage != ShaderStage.Compute)
{
if (context.Config.Stage == ShaderStage.Geometry)
{
string inPrimitive = context.Config.GpuAccessor.QueryPrimitiveTopology().ToGlslString();
context.AppendLine($"layout ({inPrimitive}) in;");
if (context.Config.GpPassthrough)
{
context.AppendLine($"layout (passthrough) in gl_PerVertex");
context.EnterScope();
context.AppendLine("vec4 gl_Position;");
context.AppendLine("float gl_PointSize;");
context.AppendLine("float gl_ClipDistance[];");
context.LeaveScope(";");
}
else
{
string outPrimitive = context.Config.OutputTopology.ToGlslString();
int maxOutputVertices = context.Config.MaxOutputVertices;
context.AppendLine($"layout ({outPrimitive}, max_vertices = {maxOutputVertices}) out;");
}
context.AppendLine();
}
if (info.IAttributes.Count != 0)
{
DeclareInputAttributes(context, info);
@ -432,6 +450,8 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
};
}
string pass = context.Config.GpPassthrough ? "passthrough, " : string.Empty;
string name = $"{DefaultNames.IAttributePrefix}{attr}";
if ((context.Config.Flags & TranslationFlags.Feedback) != 0)
@ -440,12 +460,12 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
{
char swzMask = "xyzw"[c];
context.AppendLine($"layout (location = {attr}, component = {c}) {iq}in float {name}_{swzMask}{suffix};");
context.AppendLine($"layout ({pass}location = {attr}, component = {c}) {iq}in float {name}_{swzMask}{suffix};");
}
}
else
{
context.AppendLine($"layout (location = {attr}) {iq}in vec4 {name}{suffix};");
context.AppendLine($"layout ({pass}location = {attr}) {iq}in vec4 {name}{suffix};");
}
}
}