Initial support for the guest OpenGL driver (NVIDIA and Nouveau)

Ryujinx.Graphics.GAL/Blend/BlendFactor.cs

@@ -20,6 +20,22 @@ namespace Ryujinx.Graphics.GAL.Blend
         ConstantColor = 0xc001,
         OneMinusConstantColor,
         ConstantAlpha,
-        OneMinusConstantAlpha
+        OneMinusConstantAlpha,
+
+        ZeroGl                  = 0x4000,
+        OneGl                   = 0x4001,
+        SrcColorGl              = 0x4300,
+        OneMinusSrcColorGl      = 0x4301,
+        SrcAlphaGl              = 0x4302,
+        OneMinusSrcAlphaGl      = 0x4303,
+        DstAlphaGl              = 0x4304,
+        OneMinusDstAlphaGl      = 0x4305,
+        DstColorGl              = 0x4306,
+        OneMinusDstColorGl      = 0x4307,
+        SrcAlphaSaturateGl      = 0x4308,
+        Src1ColorGl             = 0xc900,
+        OneMinusSrc1ColorGl     = 0xc901,
+        Src1AlphaGl             = 0xc902,
+        OneMinusSrc1AlphaGl     = 0xc903
     }
 }

Ryujinx.Graphics.GAL/Blend/BlendOp.cs

@@ -6,6 +6,12 @@ namespace Ryujinx.Graphics.GAL.Blend
         Subtract,
         ReverseSubtract,
         Minimum,
-        Maximum
+        Maximum,
+
+        AddGl             = 0x8006,
+        SubtractGl        = 0x8007,
+        ReverseSubtractGl = 0x8008,
+        MinimumGl         = 0x800a,
+        MaximumGl         = 0x800b
     }
 }

Ryujinx.Graphics.GAL/CompareOp.cs

@@ -9,6 +9,15 @@ namespace Ryujinx.Graphics.GAL
         Greater,
         NotEqual,
         GreaterOrEqual,
-        Always
+        Always,
+
+        NeverGl          = 0x200,
+        LessGl           = 0x201,
+        EqualGl          = 0x202,
+        LessOrEqualGl    = 0x203,
+        GreaterGl        = 0x204,
+        NotEqualGl       = 0x205,
+        GreaterOrEqualGl = 0x206,
+        AlwaysGl         = 0x207,
     }
 }

Ryujinx.Graphics.GAL/ITexture.cs

@@ -14,7 +14,7 @@ namespace Ryujinx.Graphics.GAL
 
         int GetStorageDebugId();
 
-        byte[] GetData(int face);
+        byte[] GetData();
 
         void SetData(Span<byte> data);
     }

Ryujinx.Graphics.GAL/Texture/TextureCreateInfo.cs

@@ -66,6 +66,11 @@ namespace Ryujinx.Graphics.GAL.Texture
             return GetMipStride(level) * GetLevelHeight(level) * GetLevelDepth(level);
         }
 
+        public int GetMipSize2D(int level)
+        {
+            return GetMipStride(level) * GetLevelHeight(level);
+        }
+
         public int GetMipStride(int level)
         {
             return BitUtils.AlignUp(GetLevelWidth(level) * BytesPerPixel, 4);