From 68ef3803bfb53454b4d6f1cd163ccbfa29af38c8 Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Sun, 30 May 2021 01:18:20 -0400
Subject: [PATCH] glsl: Use gl_SubGroupInvocationARB

---
 .../backend/glsl/emit_context.cpp                  |  1 -
 .../backend/glsl/emit_glsl_warp.cpp                | 14 +++++++-------
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/src/shader_recompiler/backend/glsl/emit_context.cpp b/src/shader_recompiler/backend/glsl/emit_context.cpp
index c6325e55f7..02d88b7ad7 100644
--- a/src/shader_recompiler/backend/glsl/emit_context.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_context.cpp
@@ -151,7 +151,6 @@ void EmitContext::SetupExtensions(std::string&) {
         info.uses_subgroup_shuffles || info.uses_fswzadd) {
         header += "#extension GL_ARB_shader_ballot : enable\n";
         header += "#extension GL_ARB_shader_group_vote : enable\n";
-        header += "#extension GL_KHR_shader_subgroup_basic : enable\n";
         if (!info.uses_int64) {
             header += "#extension GL_ARB_gpu_shader_int64 : enable\n";
         }
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
index 8a018acb5d..4286f29c75 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_warp.cpp
@@ -45,8 +45,8 @@ void EmitVoteAll(EmitContext& ctx, IR::Inst& inst, std::string_view pred) {
     if (!ctx.profile.warp_size_potentially_larger_than_guest) {
         ctx.AddU1("{}=allInvocationsEqualARB({});", inst, pred);
     } else {
-        const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubgroupInvocationID]")};
-        const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubgroupInvocationID]", pred)};
+        const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubGroupInvocationARB]")};
+        const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubGroupInvocationARB]", pred)};
         ctx.AddU1("{}=({}&{})=={};", inst, ballot, active_mask, active_mask);
     }
 }
@@ -55,8 +55,8 @@ void EmitVoteAny(EmitContext& ctx, IR::Inst& inst, std::string_view pred) {
     if (!ctx.profile.warp_size_potentially_larger_than_guest) {
         ctx.AddU1("{}=anyInvocationARB({});", inst, pred);
     } else {
-        const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubgroupInvocationID]")};
-        const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubgroupInvocationID]", pred)};
+        const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubGroupInvocationARB]")};
+        const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubGroupInvocationARB]", pred)};
         ctx.AddU1("{}=({}&{})!=0u;", inst, ballot, active_mask, active_mask);
     }
 }
@@ -65,8 +65,8 @@ void EmitVoteEqual(EmitContext& ctx, IR::Inst& inst, std::string_view pred) {
     if (!ctx.profile.warp_size_potentially_larger_than_guest) {
         ctx.AddU1("{}=allInvocationsEqualARB({});", inst, pred);
     } else {
-        const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubgroupInvocationID]")};
-        const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubgroupInvocationID]", pred)};
+        const auto active_mask{fmt::format("uvec2(ballotARB(true))[gl_SubGroupInvocationARB]")};
+        const auto ballot{fmt::format("uvec2(ballotARB({}))[gl_SubGroupInvocationARB]", pred)};
         const auto value{fmt::format("({}^{})", ballot, active_mask)};
         ctx.AddU1("{}=({}==0)||({}=={});", inst, value, value, active_mask);
     }
@@ -76,7 +76,7 @@ void EmitSubgroupBallot(EmitContext& ctx, IR::Inst& inst, std::string_view pred)
     if (!ctx.profile.warp_size_potentially_larger_than_guest) {
         ctx.AddU32("{}=uvec2(ballotARB({})).x;", inst, pred);
     } else {
-        ctx.AddU32("{}=uvec2(ballotARB({}))[gl_SubgroupInvocationID];", inst, pred);
+        ctx.AddU32("{}=uvec2(ballotARB({}))[gl_SubGroupInvocationARB];", inst, pred);
     }
 }