Support deswizzle of sparse tiled textures and some frame buffer fixes (#275)

* Attempt to support deswizzle of sparse tiled textures

* Use correct frame buffer and viewport sizes, started to clean up the copy engine

* Correct texture width alignment

* Use Scale/Translate registers to calculate viewport rect

* Allow texture copy between frame buffers

1 files changed, 4 insertions, 24 deletions

diff --git a/Ryujinx.HLE/Gpu/Texture/TextureWriter.cs b/Ryujinx.HLE/Gpu/Texture/TextureWriter.cs
index b64302a5..a87d4545 100644
--- a/Ryujinx.HLE/Gpu/Texture/TextureWriter.cs
+++ b/Ryujinx.HLE/Gpu/Texture/TextureWriter.cs
@@ -6,29 +6,9 @@ namespace Ryujinx.HLE.Gpu.Texture
 {
     static class TextureWriter
     {
-        public static void Write(
-            IAMemory    Memory,
-            TextureInfo Texture,
-            byte[]      Data,
-            int         Width,
-            int         Height)
+        public unsafe static void Write(IAMemory Memory, TextureInfo Texture, byte[] Data)
         {
-            switch (Texture.Format)
-            {
-                case GalTextureFormat.A8B8G8R8: Write4Bpp(Memory, Texture, Data, Width, Height); break;
-
-                default: throw new NotImplementedException(Texture.Format.ToString());
-            }
-        }
-
-        private unsafe static void Write4Bpp(
-            IAMemory    Memory,
-            TextureInfo Texture,
-            byte[]      Data,
-            int         Width,
-            int         Height)
-        {
-            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, Width, 4);
+            ISwizzle Swizzle = TextureHelper.GetSwizzle(Texture, 1, 4);
 
             (AMemory CpuMem, long Position) = TextureHelper.GetMemoryAndPosition(
                 Memory,
@@ -38,8 +18,8 @@ namespace Ryujinx.HLE.Gpu.Texture
             {
                 long InOffs = 0;
 
-                for (int Y = 0; Y < Height; Y++)
-                for (int X = 0; X < Width;  X++)
+                for (int Y = 0; Y < Texture.Height; Y++)
+                for (int X = 0; X < Texture.Width;  X++)
                 {
                     long Offset = (uint)Swizzle.GetSwizzleOffset(X, Y);