From 8811cc5cc6ee6ac31cac59874e3f82c723e4214e Mon Sep 17 00:00:00 2001
From: korenkonder <admin@mysterious-home.net>
Date: Sun, 22 Sep 2024 15:02:34 +0300
Subject: [PATCH] Add V_CVT_PK_U8_F32 opcode (#1022)

---
 src/shader_recompiler/frontend/translate/translate.h |  1 +
 .../frontend/translate/vector_alu.cpp                | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/src/shader_recompiler/frontend/translate/translate.h b/src/shader_recompiler/frontend/translate/translate.h
index efa27cbd..aeeb8e13 100644
--- a/src/shader_recompiler/frontend/translate/translate.h
+++ b/src/shader_recompiler/frontend/translate/translate.h
@@ -216,6 +216,7 @@ public:
     void V_MED3_I32(const GcnInst& inst);
     void V_SAD(const GcnInst& inst);
     void V_SAD_U32(const GcnInst& inst);
+    void V_CVT_PK_U8_F32(const GcnInst& inst);
     void V_LSHL_B64(const GcnInst& inst);
     void V_MUL_F64(const GcnInst& inst);
     void V_MAX_F64(const GcnInst& inst);
diff --git a/src/shader_recompiler/frontend/translate/vector_alu.cpp b/src/shader_recompiler/frontend/translate/vector_alu.cpp
index 66f5ea9b..1d305fdc 100644
--- a/src/shader_recompiler/frontend/translate/vector_alu.cpp
+++ b/src/shader_recompiler/frontend/translate/vector_alu.cpp
@@ -335,6 +335,8 @@ void Translator::EmitVectorAlu(const GcnInst& inst) {
         return V_MED3_I32(inst);
     case Opcode::V_SAD_U32:
         return V_SAD_U32(inst);
+    case Opcode::V_CVT_PK_U8_F32:
+        return V_CVT_PK_U8_F32(inst);
     case Opcode::V_LSHL_B64:
         return V_LSHL_B64(inst);
     case Opcode::V_MUL_F64:
@@ -1031,6 +1033,16 @@ void Translator::V_SAD_U32(const GcnInst& inst) {
     SetDst(inst.dst[0], ir.IAdd(result, src2));
 }
 
+void Translator::V_CVT_PK_U8_F32(const GcnInst& inst) {
+    const IR::F32 src0{GetSrc<IR::F32>(inst.src[0])};
+    const IR::U32 src1{GetSrc(inst.src[1])};
+    const IR::U32 src2{GetSrc(inst.src[2])};
+
+    const IR::U32 value_uint = ir.ConvertFToU(32, src0);
+    const IR::U32 offset = ir.ShiftLeftLogical(src1, ir.Imm32(3));
+    SetDst(inst.dst[0], ir.BitFieldInsert(src2, value_uint, offset, ir.Imm32(8)));
+}
+
 void Translator::V_LSHL_B64(const GcnInst& inst) {
     const IR::U64 src0{GetSrc64(inst.src[0])};
     const IR::U64 src1{GetSrc64(inst.src[1])};