shader: Implement indexed Position and ClipDistances

1 files changed, 18 insertions, 8 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 dbe9f1f40..a14465598 100644
--- a/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
+++ b/src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
@@ -517,22 +517,32 @@ void GatherInfoFromHeader(Environment& env, Info& info) {
     }
     const auto& header = env.SPH();
     if (stage == Stage::Fragment) {
+        if (!info.loads_indexed_attributes) {
+            return;
+        }
         for (size_t i = 0; i < info.input_generics.size(); i++) {
             info.input_generics[i].used =
                 info.input_generics[i].used || header.ps.IsGenericVectorActive(i);
         }
+        info.loads_position = info.loads_position || header.ps.imap_systemb.position != 0;
         return;
     }
-    for (size_t i = 0; i < info.input_generics.size(); i++) {
-        info.input_generics[i].used =
-            info.input_generics[i].used || header.vtg.IsInputGenericVectorActive(i);
+    if (info.loads_indexed_attributes) {
+        for (size_t i = 0; i < info.input_generics.size(); i++) {
+            info.input_generics[i].used =
+                info.input_generics[i].used || header.vtg.IsInputGenericVectorActive(i);
+        }
     }
-    for (size_t i = 0; i < info.stores_generics.size(); i++) {
-        info.stores_generics[i] =
-            info.stores_generics[i] || header.vtg.IsOutputGenericVectorActive(i);
+    if (info.stores_indexed_attributes) {
+        info.loads_position = info.loads_position || header.vtg.imap_systemb.position != 0;
+        for (size_t i = 0; i < info.stores_generics.size(); i++) {
+            info.stores_generics[i] =
+                info.stores_generics[i] || header.vtg.IsOutputGenericVectorActive(i);
+        }
+        info.stores_clip_distance =
+            info.stores_clip_distance || header.vtg.omap_systemc.clip_distances != 0;
+        info.stores_position = info.stores_position || header.vtg.omap_systemb.position != 0;
     }
-    info.stores_clip_distance =
-        info.stores_clip_distance || header.vtg.omap_systemc.clip_distances != 0;
 }
 
 } // Anonymous namespace