From ac0f5d2ab6cf0843c9ac6179b52b1e069a78069e Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Mon, 31 May 2021 04:19:31 -0300
Subject: shader: Track legacy varyings

---
 .../ir_opt/collect_shader_info_pass.cpp            | 101 ++++++++++++++++++---
 src/shader_recompiler/shader_info.h                |  21 ++++-
 2 files changed, 105 insertions(+), 17 deletions(-)

diff --git a/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp b/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
index ea08aacc3..b343f0429 100644
--- a/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
+++ b/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
@@ -43,14 +43,11 @@ void GetAttribute(Info& info, IR::Attribute attribute) {
     case IR::Attribute::PositionW:
         info.loads_position = true;
         break;
-    case IR::Attribute::InstanceId:
-        info.loads_instance_id = true;
-        break;
-    case IR::Attribute::VertexId:
-        info.loads_vertex_id = true;
-        break;
-    case IR::Attribute::FrontFace:
-        info.loads_front_face = true;
+    case IR::Attribute::ColorFrontDiffuseR:
+    case IR::Attribute::ColorFrontDiffuseG:
+    case IR::Attribute::ColorFrontDiffuseB:
+    case IR::Attribute::ColorFrontDiffuseA:
+        info.loads_color_front_diffuse = true;
         break;
     case IR::Attribute::PointSpriteS:
     case IR::Attribute::PointSpriteT:
@@ -60,6 +57,15 @@ void GetAttribute(Info& info, IR::Attribute attribute) {
     case IR::Attribute::TessellationEvaluationPointV:
         info.loads_tess_coord = true;
         break;
+    case IR::Attribute::InstanceId:
+        info.loads_instance_id = true;
+        break;
+    case IR::Attribute::VertexId:
+        info.loads_vertex_id = true;
+        break;
+    case IR::Attribute::FrontFace:
+        info.loads_front_face = true;
+        break;
     default:
         throw NotImplementedException("Get attribute {}", attribute);
     }
@@ -71,6 +77,12 @@ void SetAttribute(Info& info, IR::Attribute attribute) {
         return;
     }
     switch (attribute) {
+    case IR::Attribute::Layer:
+        info.stores_layer = true;
+        break;
+    case IR::Attribute::ViewportIndex:
+        info.stores_viewport_index = true;
+        break;
     case IR::Attribute::PointSize:
         info.stores_point_size = true;
         break;
@@ -80,6 +92,72 @@ void SetAttribute(Info& info, IR::Attribute attribute) {
     case IR::Attribute::PositionW:
         info.stores_position = true;
         break;
+    case IR::Attribute::ColorFrontDiffuseR:
+    case IR::Attribute::ColorFrontDiffuseG:
+    case IR::Attribute::ColorFrontDiffuseB:
+    case IR::Attribute::ColorFrontDiffuseA:
+        info.stores_color_front_diffuse = true;
+        break;
+    case IR::Attribute::ColorFrontSpecularR:
+    case IR::Attribute::ColorFrontSpecularG:
+    case IR::Attribute::ColorFrontSpecularB:
+    case IR::Attribute::ColorFrontSpecularA:
+        info.stores_color_front_specular = true;
+        break;
+    case IR::Attribute::ColorBackDiffuseR:
+    case IR::Attribute::ColorBackDiffuseG:
+    case IR::Attribute::ColorBackDiffuseB:
+    case IR::Attribute::ColorBackDiffuseA:
+        info.stores_color_back_diffuse = true;
+        break;
+    case IR::Attribute::ColorBackSpecularR:
+    case IR::Attribute::ColorBackSpecularG:
+    case IR::Attribute::ColorBackSpecularB:
+    case IR::Attribute::ColorBackSpecularA:
+        info.stores_color_front_specular = true;
+        break;
+    case IR::Attribute::FixedFncTexture0S:
+    case IR::Attribute::FixedFncTexture0T:
+    case IR::Attribute::FixedFncTexture0R:
+    case IR::Attribute::FixedFncTexture0Q:
+    case IR::Attribute::FixedFncTexture1S:
+    case IR::Attribute::FixedFncTexture1T:
+    case IR::Attribute::FixedFncTexture1R:
+    case IR::Attribute::FixedFncTexture1Q:
+    case IR::Attribute::FixedFncTexture2S:
+    case IR::Attribute::FixedFncTexture2T:
+    case IR::Attribute::FixedFncTexture2R:
+    case IR::Attribute::FixedFncTexture2Q:
+    case IR::Attribute::FixedFncTexture3S:
+    case IR::Attribute::FixedFncTexture3T:
+    case IR::Attribute::FixedFncTexture3R:
+    case IR::Attribute::FixedFncTexture3Q:
+    case IR::Attribute::FixedFncTexture4S:
+    case IR::Attribute::FixedFncTexture4T:
+    case IR::Attribute::FixedFncTexture4R:
+    case IR::Attribute::FixedFncTexture4Q:
+    case IR::Attribute::FixedFncTexture5S:
+    case IR::Attribute::FixedFncTexture5T:
+    case IR::Attribute::FixedFncTexture5R:
+    case IR::Attribute::FixedFncTexture5Q:
+    case IR::Attribute::FixedFncTexture6S:
+    case IR::Attribute::FixedFncTexture6T:
+    case IR::Attribute::FixedFncTexture6R:
+    case IR::Attribute::FixedFncTexture6Q:
+    case IR::Attribute::FixedFncTexture7S:
+    case IR::Attribute::FixedFncTexture7T:
+    case IR::Attribute::FixedFncTexture7R:
+    case IR::Attribute::FixedFncTexture7Q:
+    case IR::Attribute::FixedFncTexture8S:
+    case IR::Attribute::FixedFncTexture8T:
+    case IR::Attribute::FixedFncTexture8R:
+    case IR::Attribute::FixedFncTexture8Q:
+    case IR::Attribute::FixedFncTexture9S:
+    case IR::Attribute::FixedFncTexture9T:
+    case IR::Attribute::FixedFncTexture9R:
+    case IR::Attribute::FixedFncTexture9Q:
+        info.stores_fixed_fnc_textures = true;
+        break;
     case IR::Attribute::ClipDistance0:
     case IR::Attribute::ClipDistance1:
     case IR::Attribute::ClipDistance2:
@@ -90,11 +168,8 @@ void SetAttribute(Info& info, IR::Attribute attribute) {
     case IR::Attribute::ClipDistance7:
         info.stores_clip_distance = true;
         break;
-    case IR::Attribute::Layer:
-        info.stores_layer = true;
-        break;
-    case IR::Attribute::ViewportIndex:
-        info.stores_viewport_index = true;
+    case IR::Attribute::FogCoordinate:
+        info.stores_fog_coordinate = true;
         break;
     case IR::Attribute::ViewportMask:
         info.stores_viewport_mask = true;
diff --git a/src/shader_recompiler/shader_info.h b/src/shader_recompiler/shader_info.h
index d6c32fbe5..b60ba0457 100644
--- a/src/shader_recompiler/shader_info.h
+++ b/src/shader_recompiler/shader_info.h
@@ -122,26 +122,39 @@ struct Info {
     std::array<InputVarying, 32> input_generics{};
     bool loads_primitive_id{};
     bool loads_position{};
+    bool loads_color_front_diffuse{};
+    bool loads_point_coord{};
     bool loads_instance_id{};
     bool loads_vertex_id{};
     bool loads_front_face{};
-    bool loads_point_coord{};
+
     bool loads_tess_coord{};
+
     bool loads_indexed_attributes{};
 
     std::array<bool, 8> stores_frag_color{};
     bool stores_sample_mask{};
     bool stores_frag_depth{};
+
     std::array<bool, 32> stores_generics{};
-    bool stores_position{};
-    bool stores_point_size{};
-    bool stores_clip_distance{};
     bool stores_layer{};
     bool stores_viewport_index{};
+    bool stores_point_size{};
+    bool stores_position{};
+    bool stores_color_front_diffuse{};
+    bool stores_color_front_specular{};
+    bool stores_color_back_diffuse{};
+    bool stores_color_back_specular{};
+    bool stores_fixed_fnc_textures{};
+    bool stores_clip_distance{};
+    bool stores_fog_coordinate{};
     bool stores_viewport_mask{};
+
     bool stores_tess_level_outer{};
     bool stores_tess_level_inner{};
+
     bool stores_indexed_attributes{};
+
     bool stores_global_memory{};
 
     bool uses_fp16{};
-- 
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