From cfeb161c7ebf93bf6ac39e430fc998dc13abfc66 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Sat, 31 Jul 2021 03:04:08 -0300
Subject: glsl/glasm: Pass and use scaling parameters in shaders

---
 src/shader_recompiler/backend/glasm/emit_glasm.cpp                 | 3 +++
 src/shader_recompiler/backend/glasm/emit_glasm_image.cpp           | 5 +++--
 src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp | 2 +-
 3 files changed, 7 insertions(+), 3 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 4ce1c4f54..004658546 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm.cpp
@@ -448,6 +448,9 @@ std::string EmitGLASM(const Profile& profile, const RuntimeInfo& runtime_info, I
         header += fmt::format("SHARED_MEMORY {};", program.shared_memory_size);
         header += fmt::format("SHARED shared_mem[]={{program.sharedmem}};");
     }
+    if (program.info.uses_rescaling_uniform) {
+        header += "PARAM scaling[1]={program.local[0..0]};";
+    }
     header += "TEMP ";
     for (size_t index = 0; index < ctx.reg_alloc.NumUsedRegisters(); ++index) {
         header += fmt::format("R{},", index);
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
index 583ed3cf2..05e88cd97 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_image.cpp
@@ -612,8 +612,9 @@ void EmitIsTextureScaled(EmitContext& ctx, IR::Inst& inst, const IR::Value& inde
     if (!index.IsImmediate()) {
         throw NotImplementedException("Non-constant texture rescaling");
     }
-    UNIMPLEMENTED();
-    ctx.Add("MOV.S {}.x,-1;", inst);
+    ctx.Add("AND.U RC.x,scaling[0].x,{};"
+            "SNE.S {},RC.x,0;",
+            1u << index.U32(), ctx.reg_alloc.Define(inst));
 }
 
 void EmitImageAtomicIAdd32(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, Register coord,
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 77ee6dc0e..c0f8ddcad 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
@@ -211,7 +211,7 @@ void EmitYDirection(EmitContext& ctx, IR::Inst& inst) {
 }
 
 void EmitResolutionDownFactor(EmitContext& ctx, IR::Inst& inst) {
-    ctx.Add("MOV.F {}.x,program.env[0].x;", inst);
+    ctx.Add("MOV.F {}.x,scaling[0].y;", inst);
 }
 
 void EmitUndefU1(EmitContext& ctx, IR::Inst& inst) {
-- 
cgit v1.2.3