From ec6fc5fe78c9038fc9ad7259b7b3a7be751ecef6 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Mon, 17 May 2021 02:52:01 -0300
Subject: glasm: Implement TEX and TEXS instructions

Remove lod clamp from texture instructions with lod, as this is not
needed (nor supported).
---
 src/shader_recompiler/frontend/ir/ir_emitter.cpp       | 11 ++++-------
 src/shader_recompiler/frontend/ir/ir_emitter.h         |  5 ++---
 .../frontend/maxwell/translate/impl/texture_fetch.cpp  |  5 ++---
 .../maxwell/translate/impl/texture_fetch_swizzled.cpp  | 18 +++++++++---------
 4 files changed, 17 insertions(+), 22 deletions(-)

(limited to 'src/shader_recompiler/frontend')

diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.cpp b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
index def29143ec..94bdbe39c1 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.cpp
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
@@ -1778,12 +1778,10 @@ Value IREmitter::ImageSampleImplicitLod(const Value& handle, const Value& coords
 }
 
 Value IREmitter::ImageSampleExplicitLod(const Value& handle, const Value& coords, const F32& lod,
-                                        const Value& offset, const F32& lod_clamp,
-                                        TextureInstInfo info) {
-    const Value lod_lc{MakeLodClampPair(*this, lod, lod_clamp)};
+                                        const Value& offset, TextureInstInfo info) {
     const Opcode op{handle.IsImmediate() ? Opcode::BoundImageSampleExplicitLod
                                          : Opcode::BindlessImageSampleExplicitLod};
-    return Inst(op, Flags{info}, handle, coords, lod_lc, offset);
+    return Inst(op, Flags{info}, handle, coords, lod, offset);
 }
 
 F32 IREmitter::ImageSampleDrefImplicitLod(const Value& handle, const Value& coords, const F32& dref,
@@ -1796,12 +1794,11 @@ F32 IREmitter::ImageSampleDrefImplicitLod(const Value& handle, const Value& coor
 }
 
 F32 IREmitter::ImageSampleDrefExplicitLod(const Value& handle, const Value& coords, const F32& dref,
-                                          const F32& lod, const Value& offset, const F32& lod_clamp,
+                                          const F32& lod, const Value& offset,
                                           TextureInstInfo info) {
-    const Value lod_lc{MakeLodClampPair(*this, lod, lod_clamp)};
     const Opcode op{handle.IsImmediate() ? Opcode::BoundImageSampleDrefExplicitLod
                                          : Opcode::BindlessImageSampleDrefExplicitLod};
-    return Inst<F32>(op, Flags{info}, handle, coords, dref, lod_lc, offset);
+    return Inst<F32>(op, Flags{info}, handle, coords, dref, lod, offset);
 }
 
 Value IREmitter::ImageGather(const Value& handle, const Value& coords, const Value& offset,
diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.h b/src/shader_recompiler/frontend/ir/ir_emitter.h
index 4f7c820feb..4ae69b7886 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.h
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.h
@@ -302,15 +302,14 @@ public:
                                                const F32& lod_clamp, TextureInstInfo info);
     [[nodiscard]] Value ImageSampleExplicitLod(const Value& handle, const Value& coords,
                                                const F32& lod, const Value& offset,
-                                               const F32& lod_clamp, TextureInstInfo info);
+                                               TextureInstInfo info);
     [[nodiscard]] F32 ImageSampleDrefImplicitLod(const Value& handle, const Value& coords,
                                                  const F32& dref, const F32& bias,
                                                  const Value& offset, const F32& lod_clamp,
                                                  TextureInstInfo info);
     [[nodiscard]] F32 ImageSampleDrefExplicitLod(const Value& handle, const Value& coords,
                                                  const F32& dref, const F32& lod,
-                                                 const Value& offset, const F32& lod_clamp,
-                                                 TextureInstInfo info);
+                                                 const Value& offset, TextureInstInfo info);
     [[nodiscard]] Value ImageQueryDimension(const Value& handle, const IR::U32& lod);
 
     [[nodiscard]] Value ImageQueryLod(const Value& handle, const Value& coords,
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch.cpp
index 9671d115ef..0046b5edde 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch.cpp
@@ -177,14 +177,13 @@ void Impl(TranslatorVisitor& v, u64 insn, bool aoffi, Blod blod, bool lc,
     const IR::Value sample{[&]() -> IR::Value {
         if (tex.dc == 0) {
             if (HasExplicitLod(blod)) {
-                return v.ir.ImageSampleExplicitLod(handle, coords, lod, offset, lod_clamp, info);
+                return v.ir.ImageSampleExplicitLod(handle, coords, lod, offset, info);
             } else {
                 return v.ir.ImageSampleImplicitLod(handle, coords, lod, offset, lod_clamp, info);
             }
         }
         if (HasExplicitLod(blod)) {
-            return v.ir.ImageSampleDrefExplicitLod(handle, coords, dref, lod, offset, lod_clamp,
-                                                   info);
+            return v.ir.ImageSampleDrefExplicitLod(handle, coords, dref, lod, offset, info);
         } else {
             return v.ir.ImageSampleDrefImplicitLod(handle, coords, dref, lod, offset, lod_clamp,
                                                    info);
diff --git a/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch_swizzled.cpp b/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch_swizzled.cpp
index 3500a4559b..154e7f1a11 100644
--- a/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch_swizzled.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate/impl/texture_fetch_swizzled.cpp
@@ -81,18 +81,18 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {
     switch (texs.encoding) {
     case 0: // 1D.LZ
         info.type.Assign(TextureType::Color1D);
-        return v.ir.ImageSampleExplicitLod(handle, v.F(reg_a), zero, {}, {}, info);
+        return v.ir.ImageSampleExplicitLod(handle, v.F(reg_a), zero, {}, info);
     case 1: // 2D
         info.type.Assign(TextureType::Color2D);
         return v.ir.ImageSampleImplicitLod(handle, Composite(v, reg_a, reg_b), {}, {}, {}, info);
     case 2: // 2D.LZ
         info.type.Assign(TextureType::Color2D);
-        return v.ir.ImageSampleExplicitLod(handle, Composite(v, reg_a, reg_b), zero, {}, {}, info);
+        return v.ir.ImageSampleExplicitLod(handle, Composite(v, reg_a, reg_b), zero, {}, info);
     case 3: // 2D.LL
         CheckAlignment(reg_a, 2);
         info.type.Assign(TextureType::Color2D);
         return v.ir.ImageSampleExplicitLod(handle, Composite(v, reg_a, reg_a + 1), v.F(reg_b), {},
-                                           {}, info);
+                                           info);
     case 4: // 2D.DC
         CheckAlignment(reg_a, 2);
         info.type.Assign(TextureType::Color2D);
@@ -105,13 +105,13 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {
         info.type.Assign(TextureType::Color2D);
         info.is_depth.Assign(1);
         return v.ir.ImageSampleDrefExplicitLod(handle, Composite(v, reg_a, reg_a + 1),
-                                               v.F(reg_b + 1), v.F(reg_b), {}, {}, info);
+                                               v.F(reg_b + 1), v.F(reg_b), {}, info);
     case 6: // 2D.LZ.DC
         CheckAlignment(reg_a, 2);
         info.type.Assign(TextureType::Color2D);
         info.is_depth.Assign(1);
         return v.ir.ImageSampleDrefExplicitLod(handle, Composite(v, reg_a, reg_a + 1), v.F(reg_b),
-                                               zero, {}, {}, info);
+                                               zero, {}, info);
     case 7: // ARRAY_2D
         CheckAlignment(reg_a, 2);
         info.type.Assign(TextureType::ColorArray2D);
@@ -123,7 +123,7 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {
         info.type.Assign(TextureType::ColorArray2D);
         return v.ir.ImageSampleExplicitLod(
             handle, v.ir.CompositeConstruct(v.F(reg_a + 1), v.F(reg_b), ReadArray(v, v.X(reg_a))),
-            zero, {}, {}, info);
+            zero, {}, info);
     case 9: // ARRAY_2D.LZ.DC
         CheckAlignment(reg_a, 2);
         CheckAlignment(reg_b, 2);
@@ -131,7 +131,7 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {
         info.is_depth.Assign(1);
         return v.ir.ImageSampleDrefExplicitLod(
             handle, v.ir.CompositeConstruct(v.F(reg_a + 1), v.F(reg_b), ReadArray(v, v.X(reg_a))),
-            v.F(reg_b + 1), zero, {}, {}, info);
+            v.F(reg_b + 1), zero, {}, info);
     case 10: // 3D
         CheckAlignment(reg_a, 2);
         info.type.Assign(TextureType::Color3D);
@@ -141,7 +141,7 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {
         CheckAlignment(reg_a, 2);
         info.type.Assign(TextureType::Color3D);
         return v.ir.ImageSampleExplicitLod(handle, Composite(v, reg_a, reg_a + 1, reg_b), zero, {},
-                                           {}, info);
+                                           info);
     case 12: // CUBE
         CheckAlignment(reg_a, 2);
         info.type.Assign(TextureType::ColorCube);
@@ -152,7 +152,7 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {
         CheckAlignment(reg_b, 2);
         info.type.Assign(TextureType::ColorCube);
         return v.ir.ImageSampleExplicitLod(handle, Composite(v, reg_a, reg_a + 1, reg_b),
-                                           v.F(reg_b + 1), {}, {}, info);
+                                           v.F(reg_b + 1), {}, info);
     default:
         throw NotImplementedException("Illegal encoding {}", texs.encoding.Value());
     }
-- 
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