From f7424ea5bd6913d6fd93ae4134e3880f984ea042 Mon Sep 17 00:00:00 2001
From: Luke Benstead <kazade@gmail.com>
Date: Wed, 21 Apr 2021 17:21:03 +0100
Subject: [PATCH] Implement TransformVertex for PC

---
 GL/platforms/software.c | 15 +++++++++++++++
 GL/platforms/software.h |  1 +
 2 files changed, 16 insertions(+)

diff --git a/GL/platforms/software.c b/GL/platforms/software.c
index 7e904a0..40ccf8f 100644
--- a/GL/platforms/software.c
+++ b/GL/platforms/software.c
@@ -328,3 +328,18 @@ void TransformVertices(Vertex* vertices, const int count) {
         vertices->w = ret[3];
     }
 }
+
+void TransformVertex(const float* xyz, const float* w, float* oxyz, float* ow) {
+    float ret[4];
+    ret[0] = xyz[0];
+    ret[1] = xyz[1];
+    ret[2] = xyz[2];
+    ret[3] = *w;
+
+    TransformVec4(ret);
+
+    oxyz[0] = ret[0];
+    oxyz[1] = ret[1];
+    oxyz[2] = ret[2];
+    *ow = ret[3];
+}
diff --git a/GL/platforms/software.h b/GL/platforms/software.h
index 47fa9a6..e3a3a03 100644
--- a/GL/platforms/software.h
+++ b/GL/platforms/software.h
@@ -50,6 +50,7 @@ static inline void TransformNormalNoMod(const float* xIn, float* xOut) {
 }
 
 void TransformVertices(Vertex* vertices, const int count);
+void TransformVertex(const float* xyz, const float* w, float* oxyz, float* ow);
 
 void InitGPU(_Bool autosort, _Bool fsaa);