Improved GPU command lists decoding (#499)

* Better implementation of the DMA pusher, misc fixes

* Remove some debug code

* Correct RGBX8 format

* Add support for linked Texture Sampler Control

* Attempt to fix upside down screen issue

Ryujinx.Graphics/Gal/GalImageFormat.cs

@@ -28,6 +28,7 @@ namespace Ryujinx.Graphics.Gal
         RGB5A1,
         R8,
         RG8,
+        RGBX8,
         RGBA8,
         BGRA8,
         RGB10A2,
@@ -39,6 +40,7 @@ namespace Ryujinx.Graphics.Gal
         RGBA32,
         R11G11B10,
         D16,
+        D24,
         D32,
         D24S8,
         D32S8,