From 486d2d099c560c9f2dc3a2ffb06481e603bac4d0 Mon Sep 17 00:00:00 2001
From: Stephan Unverwerth <s.unverwerth@serenityos.org>
Date: Sat, 1 Jan 2022 17:33:09 +0100
Subject: [PATCH] LibSoftGPU: Add SIMD.h with SoftGPU specific SIMD functions

Adds functions to expand Vector{2,3,4} to their SIMD equivalent.
---
 Userland/Libraries/LibSoftGPU/SIMD.h | 70 ++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Userland/Libraries/LibSoftGPU/SIMD.h

diff --git a/Userland/Libraries/LibSoftGPU/SIMD.h b/Userland/Libraries/LibSoftGPU/SIMD.h
new file mode 100644
index 0000000000..66ade79d50
--- /dev/null
+++ b/Userland/Libraries/LibSoftGPU/SIMD.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/SIMDExtras.h>
+#include <LibGfx/Vector2.h>
+#include <LibGfx/Vector3.h>
+#include <LibGfx/Vector4.h>
+
+namespace SoftGPU {
+
+ALWAYS_INLINE static constexpr Vector2<AK::SIMD::f32x4> expand4(Vector2<float> const& v)
+{
+    return Vector2<AK::SIMD::f32x4> {
+        AK::SIMD::expand4(v.x()),
+        AK::SIMD::expand4(v.y()),
+    };
+}
+
+ALWAYS_INLINE static constexpr Vector3<AK::SIMD::f32x4> expand4(Vector3<float> const& v)
+{
+    return Vector3<AK::SIMD::f32x4> {
+        AK::SIMD::expand4(v.x()),
+        AK::SIMD::expand4(v.y()),
+        AK::SIMD::expand4(v.z()),
+    };
+}
+
+ALWAYS_INLINE static constexpr Vector4<AK::SIMD::f32x4> expand4(Vector4<float> const& v)
+{
+    return Vector4<AK::SIMD::f32x4> {
+        AK::SIMD::expand4(v.x()),
+        AK::SIMD::expand4(v.y()),
+        AK::SIMD::expand4(v.z()),
+        AK::SIMD::expand4(v.w()),
+    };
+}
+
+ALWAYS_INLINE static constexpr Vector2<AK::SIMD::i32x4> expand4(Vector2<int> const& v)
+{
+    return Vector2<AK::SIMD::i32x4> {
+        AK::SIMD::expand4(v.x()),
+        AK::SIMD::expand4(v.y()),
+    };
+}
+
+ALWAYS_INLINE static constexpr Vector3<AK::SIMD::i32x4> expand4(Vector3<int> const& v)
+{
+    return Vector3<AK::SIMD::i32x4> {
+        AK::SIMD::expand4(v.x()),
+        AK::SIMD::expand4(v.y()),
+        AK::SIMD::expand4(v.z()),
+    };
+}
+
+ALWAYS_INLINE static constexpr Vector4<AK::SIMD::i32x4> expand4(Vector4<int> const& v)
+{
+    return Vector4<AK::SIMD::i32x4> {
+        AK::SIMD::expand4(v.x()),
+        AK::SIMD::expand4(v.y()),
+        AK::SIMD::expand4(v.z()),
+        AK::SIMD::expand4(v.w()),
+    };
+}
+
+}