1 files changed, 99 insertions, 0 deletions
diff --git a/src/video_core/shader/node_helper.cpp b/src/video_core/shader/node_helper.cpp
new file mode 100644
index 000000000..6fccbbba3
--- /dev/null
+++ b/src/video_core/shader/node_helper.cpp
@@ -0,0 +1,99 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <cstring>
+#include <vector>
+
+#include "common/common_types.h"
+#include "video_core/shader/node_helper.h"
+#include "video_core/shader/shader_ir.h"
+
+namespace VideoCommon::Shader {
+
+Node Conditional(Node condition, std::vector<Node> code) {
+    return MakeNode<ConditionalNode>(condition, std::move(code));
+}
+
+Node Comment(std::string text) {
+    return MakeNode<CommentNode>(std::move(text));
+}
+
+Node Immediate(u32 value) {
+    return MakeNode<ImmediateNode>(value);
+}
+
+Node Immediate(s32 value) {
+    return Immediate(static_cast<u32>(value));
+}
+
+Node Immediate(f32 value) {
+    u32 integral;
+    std::memcpy(&integral, &value, sizeof(u32));
+    return Immediate(integral);
+}
+
+OperationCode SignedToUnsignedCode(OperationCode operation_code, bool is_signed) {
+    if (is_signed) {
+        return operation_code;
+    }
+    switch (operation_code) {
+    case OperationCode::FCastInteger:
+        return OperationCode::FCastUInteger;
+    case OperationCode::IAdd:
+        return OperationCode::UAdd;
+    case OperationCode::IMul:
+        return OperationCode::UMul;
+    case OperationCode::IDiv:
+        return OperationCode::UDiv;
+    case OperationCode::IMin:
+        return OperationCode::UMin;
+    case OperationCode::IMax:
+        return OperationCode::UMax;
+    case OperationCode::ICastFloat:
+        return OperationCode::UCastFloat;
+    case OperationCode::ICastUnsigned:
+        return OperationCode::UCastSigned;
+    case OperationCode::ILogicalShiftLeft:
+        return OperationCode::ULogicalShiftLeft;
+    case OperationCode::ILogicalShiftRight:
+        return OperationCode::ULogicalShiftRight;
+    case OperationCode::IArithmeticShiftRight:
+        return OperationCode::UArithmeticShiftRight;
+    case OperationCode::IBitwiseAnd:
+        return OperationCode::UBitwiseAnd;
+    case OperationCode::IBitwiseOr:
+        return OperationCode::UBitwiseOr;
+    case OperationCode::IBitwiseXor:
+        return OperationCode::UBitwiseXor;
+    case OperationCode::IBitwiseNot:
+        return OperationCode::UBitwiseNot;
+    case OperationCode::IBitfieldInsert:
+        return OperationCode::UBitfieldInsert;
+    case OperationCode::IBitCount:
+        return OperationCode::UBitCount;
+    case OperationCode::LogicalILessThan:
+        return OperationCode::LogicalULessThan;
+    case OperationCode::LogicalIEqual:
+        return OperationCode::LogicalUEqual;
+    case OperationCode::LogicalILessEqual:
+        return OperationCode::LogicalULessEqual;
+    case OperationCode::LogicalIGreaterThan:
+        return OperationCode::LogicalUGreaterThan;
+    case OperationCode::LogicalINotEqual:
+        return OperationCode::LogicalUNotEqual;
+    case OperationCode::LogicalIGreaterEqual:
+        return OperationCode::LogicalUGreaterEqual;
+    case OperationCode::INegate:
+        UNREACHABLE_MSG("Can't negate an unsigned integer");
+        return {};
+    case OperationCode::IAbsolute:
+        UNREACHABLE_MSG("Can't apply absolute to an unsigned integer");
+        return {};
+    default:
+        UNREACHABLE_MSG("Unknown signed operation with code={}", static_cast<u32>(operation_code));
+        return {};
+    }
+}
+
+} // namespace VideoCommon::Shader