Move GPU emulation from Ryujinx.HLE to Ryujinx.Graphics and misc changes (#402)

* Move GPU LLE emulation from HLE to Graphics

* Graphics: Move Gal/Texture to Texture

* Remove Engines/ directory and namespace

* Use tables for image formats

* Abstract OpCode decoding

* Simplify image table

* Do not leak Read* symbols in TextureReader

* Fixups

* Rename IGalFrameBuffer -> IGalRenderTarget

* Remove MaxBpp hardcoded value

* Change yet again texture data and add G8R8 flipping

* Rename GalFrameBufferFormat to GalSurfaceFormat

* Unident EnsureSetup in ImageHandler

* Add IsCompressed

* Address some feedback

1 files changed, 24 insertions, 0 deletions

diff --git a/Ryujinx.Graphics/Texture/ImageConverter.cs b/Ryujinx.Graphics/Texture/ImageConverter.cs
new file mode 100644
index 00000000..89529061
--- /dev/null
+++ b/Ryujinx.Graphics/Texture/ImageConverter.cs
@@ -0,0 +1,24 @@
+namespace Ryujinx.Graphics.Texture
+{
+    static class ImageConverter
+    {
+        public static byte[] G8R8ToR8G8(
+            byte[] Data,
+            int    Width,
+            int    Height,
+            int    Depth)
+        {
+            int Texels = Width * Height * Depth;
+
+            byte[] Output = new byte[Texels * 2];
+
+            for (int Texel = 0; Texel < Texels; Texel++)
+            {
+                Output[Texel * 2 + 0] = Data[Texel * 2 + 1];
+                Output[Texel * 2 + 1] = Data[Texel * 2 + 0];
+            }
+
+            return Output;
+        }
+    }
+}
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