Initial work

1 files changed, 36 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.Gpu/State/ViewportTransform.cs b/Ryujinx.Graphics.Gpu/State/ViewportTransform.cs
new file mode 100644
index 00000000..335b039c
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/State/ViewportTransform.cs
@@ -0,0 +1,36 @@
+using Ryujinx.Graphics.GAL;
+
+namespace Ryujinx.Graphics.Gpu.State
+{
+    struct ViewportTransform
+    {
+        public float ScaleX;
+        public float ScaleY;
+        public float ScaleZ;
+        public float TranslateX;
+        public float TranslateY;
+        public float TranslateZ;
+        public uint  Swizzle;
+        public uint  SubpixelPrecisionBias;
+
+        public ViewportSwizzle UnpackSwizzleX()
+        {
+            return (ViewportSwizzle)(Swizzle & 7);
+        }
+
+        public ViewportSwizzle UnpackSwizzleY()
+        {
+            return (ViewportSwizzle)((Swizzle >> 4) & 7);
+        }
+
+        public ViewportSwizzle UnpackSwizzleZ()
+        {
+            return (ViewportSwizzle)((Swizzle >> 8) & 7);
+        }
+
+        public ViewportSwizzle UnpackSwizzleW()
+        {
+            return (ViewportSwizzle)((Swizzle >> 12) & 7);
+        }
+    }
+}