From 83cef0426b058014ad94dd687a29e7c31a1fbbef Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Thu, 20 May 2021 17:28:09 -0300
Subject: glasm: Properly declare attributes on geometry programs

---
 src/shader_recompiler/backend/glasm/emit_context.cpp           |  9 ++++++++-
 src/shader_recompiler/backend/glasm/emit_context.h             |  1 +
 .../backend/glasm/emit_glasm_context_get_set.cpp               | 10 +++++-----
 3 files changed, 14 insertions(+), 6 deletions(-)

(limited to 'src/shader_recompiler/backend')

diff --git a/src/shader_recompiler/backend/glasm/emit_context.cpp b/src/shader_recompiler/backend/glasm/emit_context.cpp
index 8f418936e..a9bbb680f 100644
--- a/src/shader_recompiler/backend/glasm/emit_context.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_context.cpp
@@ -47,24 +47,31 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
     case Stage::VertexA:
     case Stage::VertexB:
         stage_name = "vertex";
+        attrib_name = "vertex";
         break;
     case Stage::TessellationControl:
     case Stage::TessellationEval:
+        stage_name = "primitive";
+        attrib_name = "primitive";
+        break;
     case Stage::Geometry:
         stage_name = "primitive";
+        attrib_name = "vertex";
         break;
     case Stage::Fragment:
         stage_name = "fragment";
+        attrib_name = "fragment";
         break;
     case Stage::Compute:
         stage_name = "invocation";
         break;
     }
+    const std::string_view attr_stage{stage == Stage::Fragment ? "fragment" : "vertex"};
     for (size_t index = 0; index < program.info.input_generics.size(); ++index) {
         const auto& generic{program.info.input_generics[index]};
         if (generic.used) {
             Add("{}ATTRIB in_attr{}[]={{{}.attrib[{}..{}]}};",
-                InterpDecorator(generic.interpolation), index, stage_name, index, index);
+                InterpDecorator(generic.interpolation), index, attr_stage, index, index);
         }
     }
     for (size_t index = 0; index < program.info.stores_frag_color.size(); ++index) {
diff --git a/src/shader_recompiler/backend/glasm/emit_context.h b/src/shader_recompiler/backend/glasm/emit_context.h
index d5bab48ea..e76ed1d7c 100644
--- a/src/shader_recompiler/backend/glasm/emit_context.h
+++ b/src/shader_recompiler/backend/glasm/emit_context.h
@@ -66,6 +66,7 @@ public:
 
     Stage stage{};
     std::string_view stage_name = "invalid";
+    std::string_view attrib_name = "invalid";
 };
 
 } // namespace Shader::Backend::GLASM
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp
index 6484387bc..a81bd209b 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp
@@ -64,20 +64,20 @@ void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr,
     case IR::Attribute::PositionY:
     case IR::Attribute::PositionZ:
     case IR::Attribute::PositionW:
-        ctx.Add("MOV.F {}.x,{}.position.{};", inst, ctx.stage_name, swizzle);
+        ctx.Add("MOV.F {}.x,{}.position.{};", inst, ctx.attrib_name, swizzle);
         break;
     case IR::Attribute::PointSpriteS:
     case IR::Attribute::PointSpriteT:
-        ctx.Add("MOV.F {}.x,{}.pointcoord.{};", inst, ctx.stage_name, swizzle);
+        ctx.Add("MOV.F {}.x,{}.pointcoord.{};", inst, ctx.attrib_name, swizzle);
         break;
     case IR::Attribute::InstanceId:
-        ctx.Add("MOV.S {}.x,{}.instance;", inst, ctx.stage_name);
+        ctx.Add("MOV.S {}.x,{}.instance;", inst, ctx.attrib_name);
         break;
     case IR::Attribute::VertexId:
-        ctx.Add("MOV.S {}.x,{}.id;", inst, ctx.stage_name);
+        ctx.Add("MOV.S {}.x,{}.id;", inst, ctx.attrib_name);
         break;
     case IR::Attribute::FrontFace:
-        ctx.Add("CMP.S {}.x,{}.facing.x,0,-1;", inst, ctx.stage_name);
+        ctx.Add("CMP.S {}.x,{}.facing.x,0,-1;", inst, ctx.attrib_name);
         break;
     default:
         throw NotImplementedException("Get attribute {}", attr);
-- 
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