Implement multiple rendertarget attachments and depth writting (#375)

* Add depth writting

* Implement multiple attachments

* Address feedback

1 files changed, 41 insertions, 4 deletions

diff --git a/Ryujinx.Graphics/Gal/Shader/GlslDecompiler.cs b/Ryujinx.Graphics/Gal/Shader/GlslDecompiler.cs
index 72637984..8baf30e0 100644
--- a/Ryujinx.Graphics/Gal/Shader/GlslDecompiler.cs
+++ b/Ryujinx.Graphics/Gal/Shader/GlslDecompiler.cs
@@ -120,8 +120,8 @@ namespace Ryujinx.Graphics.Gal.Shader
             Blocks  = ShaderDecoder.Decode(Memory, VpAPosition);
             BlocksB = ShaderDecoder.Decode(Memory, VpBPosition);
 
-            GlslDecl DeclVpA = new GlslDecl(Blocks,  ShaderType);
-            GlslDecl DeclVpB = new GlslDecl(BlocksB, ShaderType);
+            GlslDecl DeclVpA = new GlslDecl(Blocks,  ShaderType, Header);
+            GlslDecl DeclVpB = new GlslDecl(BlocksB, ShaderType, HeaderB);
 
             Decl = GlslDecl.Merge(DeclVpA, DeclVpB);
 
@@ -136,7 +136,7 @@ namespace Ryujinx.Graphics.Gal.Shader
             Blocks  = ShaderDecoder.Decode(Memory, Position);
             BlocksB = null;
 
-            Decl = new GlslDecl(Blocks, ShaderType);
+            Decl = new GlslDecl(Blocks, ShaderType, Header);
 
             return Decompile();
         }
@@ -304,7 +304,17 @@ namespace Ryujinx.Graphics.Gal.Shader
 
         private void PrintDeclOutAttributes()
         {
-            if (Decl.ShaderType != GalShaderType.Fragment)
+            if (Decl.ShaderType == GalShaderType.Fragment)
+            {
+                for (int Attachment = 0; Attachment < 8; Attachment++)
+                {
+                    if (Header.OmapTargets[Attachment].Enabled)
+                    {
+                        SB.AppendLine("layout (location = " + Attachment + ") out vec4 " + GlslDecl.FragmentOutputName + Attachment + ";");
+                    }
+                }
+            }
+            else
             {
                 SB.AppendLine("layout (location = " + GlslDecl.PositionOutAttrLocation + ") out vec4 " + GlslDecl.PositionOutAttrName + ";");
             }
@@ -432,6 +442,33 @@ namespace Ryujinx.Graphics.Gal.Shader
                 PrintAttrToOutput();
             }
 
+            if (Decl.ShaderType == GalShaderType.Fragment)
+            {
+                if (Header.OmapDepth)
+                {
+                    SB.AppendLine(IdentationStr + "gl_FragDepth = " + GlslDecl.GetGprName(Header.DepthRegister) + ";");
+                }
+
+                int GprIndex = 0;
+
+                for (int Attachment = 0; Attachment < 8; Attachment++)
+                {
+                    string Output = GlslDecl.FragmentOutputName + Attachment;
+
+                    OmapTarget Target = Header.OmapTargets[Attachment];
+
+                    for (int Component = 0; Component < 4; Component++)
+                    {
+                        if (Target.ComponentEnabled(Component))
+                        {
+                            SB.AppendLine(IdentationStr + Output + "[" + Component + "] = " + GlslDecl.GetGprName(GprIndex) + ";");
+
+                            GprIndex++;
+                        }
+                    }
+                }
+            }
+
             SB.AppendLine("}");
         }