NVDEC implementation using FFmpeg (#443)

* Initial nvdec implementation using FFmpeg

* Fix swapped channels on the video decoder and the G8R8 texture format

* Fix texture samplers not being set properly (regression)

* Rebased

* Remove unused code introduced on the rebase

* Add support for RGBA8 output format on the video image composer

* Correct spacing

* Some fixes for rebase and other tweaks

* Allow size mismatch on frame copy

* Get rid of GetHostAddress calls on VDec

1 files changed, 17 insertions, 0 deletions

diff --git a/Ryujinx.Graphics/VDec/DecoderHelper.cs b/Ryujinx.Graphics/VDec/DecoderHelper.cs
new file mode 100644
index 00000000..485bb42b
--- /dev/null
+++ b/Ryujinx.Graphics/VDec/DecoderHelper.cs
@@ -0,0 +1,17 @@
+using System;
+
+namespace Ryujinx.Graphics.VDec
+{
+    static class DecoderHelper
+    {
+        public static byte[] Combine(byte[] Arr0, byte[] Arr1)
+        {
+            byte[] Output = new byte[Arr0.Length + Arr1.Length];
+
+            Buffer.BlockCopy(Arr0, 0, Output, 0, Arr0.Length);
+            Buffer.BlockCopy(Arr1, 0, Output, Arr0.Length, Arr1.Length);
+
+            return Output;
+        }
+    }
+}
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