Rendertarget attachments, texture and image changes (#358)

* Add multiple color outputs for fragment shaders

* Add registers and gal enums

* Use textures for framebuffers and split color and zeta framebuffers

* Abstract texture and framebuffer targets as an image

* Share images between framebuffers and textures

* Unstub formats

* Add some formats

* Disable multiple attachments

* Cache framebuffer attachments

* Handle format types

* Add some rendertarget formats

* Code cleanup

* Fixup half float types

* Address feedback

* Disable multiple attachments in shaders

* Add A4B4G4R4 image format

* Add reversed section for image enums

1 files changed, 33 insertions, 0 deletions

diff --git a/Ryujinx.Graphics/Gal/GalImage.cs b/Ryujinx.Graphics/Gal/GalImage.cs
new file mode 100644
index 00000000..dc6f02e0
--- /dev/null
+++ b/Ryujinx.Graphics/Gal/GalImage.cs
@@ -0,0 +1,33 @@
+namespace Ryujinx.Graphics.Gal
+{
+    public struct GalImage
+    {
+        public int Width;
+        public int Height;
+
+        public GalImageFormat Format;
+
+        public GalTextureSource XSource;
+        public GalTextureSource YSource;
+        public GalTextureSource ZSource;
+        public GalTextureSource WSource;
+
+        public GalImage(
+            int              Width,
+            int              Height,
+            GalImageFormat   Format,
+            GalTextureSource XSource = GalTextureSource.Red,
+            GalTextureSource YSource = GalTextureSource.Green,
+            GalTextureSource ZSource = GalTextureSource.Blue,
+            GalTextureSource WSource = GalTextureSource.Alpha)
+        {
+            this.Width   = Width;
+            this.Height  = Height;
+            this.Format  = Format;
+            this.XSource = XSource;
+            this.YSource = YSource;
+            this.ZSource = ZSource;
+            this.WSource = WSource;
+        }
+    }
+}
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