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glasm: Add tessellation shader declarations

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ReinUsesLisp 2021-05-20 21:18:39 -03:00 committed by ameerj
parent 2913ca811e
commit 9ec2303ad6
1 changed files with 35 additions and 0 deletions
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35
src/shader_recompiler/backend/glasm/emit_glasm.cpp
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@ -347,6 +347,30 @@ std::string_view OutputPrimitive(OutputTopology topology) {
} }
throw InvalidArgument("Invalid output topology {}", topology); throw InvalidArgument("Invalid output topology {}", topology);
} }
std::string_view GetTessMode(TessPrimitive primitive) {
switch (primitive) {
case TessPrimitive::Triangles:
return "TRIANGLES";
case TessPrimitive::Quads:
return "QUADS";
case TessPrimitive::Isolines:
return "ISOLINES";
}
throw InvalidArgument("Invalid tessellation primitive {}", primitive);
}
std::string_view GetTessSpacing(TessSpacing spacing) {
switch (spacing) {
case TessSpacing::Equal:
return "EQUAL";
case TessSpacing::FractionalOdd:
return "FRACTIONAL_ODD";
case TessSpacing::FractionalEven:
return "FRACTIONAL_EVEN";
}
throw InvalidArgument("Invalid tessellation spacing {}", spacing);
}
} // Anonymous namespace } // Anonymous namespace
std::string EmitGLASM(const Profile& profile, IR::Program& program, Bindings& bindings) { std::string EmitGLASM(const Profile& profile, IR::Program& program, Bindings& bindings) {
@ -356,6 +380,17 @@ std::string EmitGLASM(const Profile& profile, IR::Program& program, Bindings& bi
std::string header{StageHeader(program.stage)}; std::string header{StageHeader(program.stage)};
SetupOptions(program, profile, header); SetupOptions(program, profile, header);
switch (program.stage) { switch (program.stage) {
case Stage::TessellationControl:
header += fmt::format("VERTICES_OUT {};", program.invocations);
break;
case Stage::TessellationEval:
header +=
fmt::format("TESS_MODE {};"
"TESS_SPACING {};"
"TESS_VERTEX_ORDER {};",
GetTessMode(profile.tess_primitive), GetTessSpacing(profile.tess_spacing),
profile.tess_clockwise ? "CW" : "CCW");
break;
case Stage::Geometry: case Stage::Geometry:
header += fmt::format("PRIMITIVE_IN {};" header += fmt::format("PRIMITIVE_IN {};"
"PRIMITIVE_OUT {};" "PRIMITIVE_OUT {};"