From 79f2fe1a39120f498e915fa0c740b15dc0f09793 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 2 Jun 2021 03:02:33 -0300
Subject: glasm: Use ARB_derivative_control conditionally

---
 src/shader_recompiler/backend/glasm/emit_glasm.cpp |  7 +++---
 .../backend/glasm/emit_glasm_warp.cpp              | 29 +++++++++++++++++++---
 2 files changed, 29 insertions(+), 7 deletions(-)

(limited to 'src/shader_recompiler/backend/glasm')

diff --git a/src/shader_recompiler/backend/glasm/emit_glasm.cpp b/src/shader_recompiler/backend/glasm/emit_glasm.cpp
index 70ca6f621..fc01797b6 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm.cpp
@@ -265,9 +265,7 @@ void SetupOptions(const IR::Program& program, const Profile& profile,
     // TODO: Track the shared atomic ops
     header += "OPTION NV_internal;"
               "OPTION NV_shader_storage_buffer;"
-              "OPTION NV_gpu_program_fp64;"
-              "OPTION NV_bindless_texture;"
-              "OPTION ARB_derivative_control;";
+              "OPTION NV_gpu_program_fp64;";
     if (info.uses_int64_bit_atomics) {
         header += "OPTION NV_shader_atomic_int64;";
     }
@@ -295,6 +293,9 @@ void SetupOptions(const IR::Program& program, const Profile& profile,
     if (info.uses_typeless_image_reads && profile.support_typeless_image_loads) {
         header += "OPTION EXT_shader_image_load_formatted;";
     }
+    if (profile.support_derivative_control) {
+        header += "OPTION ARB_derivative_control;";
+    }
     if (stage == Stage::Fragment && runtime_info.force_early_z != 0) {
         header += "OPTION NV_early_fragment_tests;";
     }
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_warp.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_warp.cpp
index 6e30790bb..8cec5ee7e 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm_warp.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_warp.cpp
@@ -5,6 +5,7 @@
 #include "shader_recompiler/backend/glasm/emit_context.h"
 #include "shader_recompiler/backend/glasm/emit_glasm_instructions.h"
 #include "shader_recompiler/frontend/ir/value.h"
+#include "shader_recompiler/profile.h"
 
 namespace Shader::Backend::GLASM {
 
@@ -111,19 +112,39 @@ void EmitFSwizzleAdd(EmitContext& ctx, IR::Inst& inst, ScalarF32 op_a, ScalarF32
 }
 
 void EmitDPdxFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 p) {
-    ctx.Add("DDX.FINE {}.x,{};", inst, p);
+    if (ctx.profile.support_derivative_control) {
+        ctx.Add("DDX.FINE {}.x,{};", inst, p);
+    } else {
+        // LOG_WARNING
+        ctx.Add("DDX {}.x,{};", inst, p);
+    }
 }
 
 void EmitDPdyFine(EmitContext& ctx, IR::Inst& inst, ScalarF32 p) {
-    ctx.Add("DDY.FINE {}.x,{};", inst, p);
+    if (ctx.profile.support_derivative_control) {
+        ctx.Add("DDY.FINE {}.x,{};", inst, p);
+    } else {
+        // LOG_WARNING
+        ctx.Add("DDY {}.x,{};", inst, p);
+    }
 }
 
 void EmitDPdxCoarse(EmitContext& ctx, IR::Inst& inst, ScalarF32 p) {
-    ctx.Add("DDX.COARSE {}.x,{};", inst, p);
+    if (ctx.profile.support_derivative_control) {
+        ctx.Add("DDX.COARSE {}.x,{};", inst, p);
+    } else {
+        // LOG_WARNING
+        ctx.Add("DDX {}.x,{};", inst, p);
+    }
 }
 
 void EmitDPdyCoarse(EmitContext& ctx, IR::Inst& inst, ScalarF32 p) {
-    ctx.Add("DDY.COARSE {}.x,{};", inst, p);
+    if (ctx.profile.support_derivative_control) {
+        ctx.Add("DDY.COARSE {}.x,{};", inst, p);
+    } else {
+        // LOG_WARNING
+        ctx.Add("DDY {}.x,{};", inst, p);
+    }
 }
 
 } // namespace Shader::Backend::GLASM
-- 
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