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Initial tessellation shader support (#2534)

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* Initial tessellation shader support

* Nits

* Re-arrange built-in table

* This is not needed anymore

* PR feedback
This commit is contained in:
gdkchan 2021-10-18 18:38:04 -03:00 • committed by GitHub
parent 7603dbe3c8
commit d512ce122c
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GPG key ID: 4AEE18F83AFDEB23
42 changed files with 775 additions and 148 deletions
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39
Ryujinx.Graphics.Shader/Translation/Translator.cs
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@ -216,27 +216,38 @@ namespace Ryujinx.Graphics.Shader.Translation
return;
}
void InitializeOutput(int baseAttr)
{
for (int c = 0; c < 4; c++)
{
context.Copy(Attribute(baseAttr + c * 4), ConstF(c == 3 ? 1f : 0f));
}
}
if (config.Stage == ShaderStage.Vertex)
{
InitializeOutput(AttributeConsts.PositionX);
InitializeOutput(context, AttributeConsts.PositionX, perPatch: false);
}
int usedAttribtes = context.Config.UsedOutputAttributes;
while (usedAttribtes != 0)
int usedAttributes = context.Config.UsedOutputAttributes;
while (usedAttributes != 0)
{
int index = BitOperations.TrailingZeroCount(usedAttribtes);
int index = BitOperations.TrailingZeroCount(usedAttributes);
InitializeOutput(AttributeConsts.UserAttributeBase + index * 16);
InitializeOutput(context, AttributeConsts.UserAttributeBase + index * 16, perPatch: false);
usedAttribtes &= ~(1 << index);
usedAttributes &= ~(1 << index);
}
int usedAttributesPerPatch = context.Config.UsedOutputAttributesPerPatch;
while (usedAttributesPerPatch != 0)
{
int index = BitOperations.TrailingZeroCount(usedAttributesPerPatch);
InitializeOutput(context, AttributeConsts.UserAttributeBase + index * 16, perPatch: true);
usedAttributesPerPatch &= ~(1 << index);
}
}
private static void InitializeOutput(EmitterContext context, int baseAttr, bool perPatch)
{
for (int c = 0; c < 4; c++)
{
int attrOffset = baseAttr + c * 4;
context.Copy(perPatch ? AttributePerPatch(attrOffset) : Attribute(attrOffset), ConstF(c == 3 ? 1f : 0f));
}
}