From f086c82e1f80cae088bb22de9092598dc51979da Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Thu, 29 Jul 2021 13:27:01 -0400
Subject: gl_graphics_pipeline: Add downscale factor to shader uniforms

---
 src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp | 3 +--
 src/shader_recompiler/backend/glsl/emit_context.cpp                | 3 +++
 src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp   | 3 +--
 3 files changed, 5 insertions(+), 4 deletions(-)

(limited to 'src/shader_recompiler')

diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
index 807494063..77ee6dc0e 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
@@ -211,8 +211,7 @@ void EmitYDirection(EmitContext& ctx, IR::Inst& inst) {
 }
 
 void EmitResolutionDownFactor(EmitContext& ctx, IR::Inst& inst) {
-    UNIMPLEMENTED();
-    ctx.Add("MOV.F {}.x,1;", inst);
+    ctx.Add("MOV.F {}.x,program.env[0].x;", inst);
 }
 
 void EmitUndefU1(EmitContext& ctx, IR::Inst& inst) {
diff --git a/src/shader_recompiler/backend/glsl/emit_context.cpp b/src/shader_recompiler/backend/glsl/emit_context.cpp
index 4e6f2c0fe..7c9ed9159 100644
--- a/src/shader_recompiler/backend/glsl/emit_context.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_context.cpp
@@ -393,6 +393,9 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
             DefineGenericOutput(index, program.invocations);
         }
     }
+    if (info.uses_rescaling_uniform) {
+        header += "layout(location=0) uniform float down_factor;";
+    }
     DefineConstantBuffers(bindings);
     DefineStorageBuffers(bindings);
     SetupImages(bindings);
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp
index f4ed090e3..3db3083f9 100644
--- a/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp
+++ b/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp
@@ -446,8 +446,7 @@ void EmitYDirection(EmitContext& ctx, IR::Inst& inst) {
 }
 
 void EmitResolutionDownFactor(EmitContext& ctx, IR::Inst& inst) {
-    UNIMPLEMENTED();
-    ctx.AddF32("{}=1.0f;", inst);
+    ctx.AddF32("{}=down_factor;", inst);
 }
 
 void EmitLoadLocal(EmitContext& ctx, IR::Inst& inst, std::string_view word_offset) {
-- 
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