Support shared color mask, implement more shader instructions

Support shared color masks (used by Nouveau and maybe the NVIDIA
driver).
Support draw buffers (also required by OpenGL).
Support viewport transform disable (disabled for now as it breaks some
games).
Fix instanced rendering draw being ignored for multi draw.
Fix IADD and IADD3 immediate shader encodings, that was not matching
some ops.
Implement FFMA32I shader instruction.
Implement IMAD shader instruction.

1 files changed, 20 insertions, 13 deletions

diff --git a/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs b/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs
index 8e39662d..6e3a42a2 100644
--- a/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/ShaderCache.cs
@@ -69,7 +69,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
             return cpShader;
         }
 
-        public GraphicsShader GetGraphicsShader(ShaderAddresses addresses)
+        public GraphicsShader GetGraphicsShader(ShaderAddresses addresses, bool dividePosXY)
         {
             bool isCached = _gpPrograms.TryGetValue(addresses, out List<GraphicsShader> list);
 
@@ -86,19 +86,28 @@ namespace Ryujinx.Graphics.Gpu.Shader
 
             GraphicsShader gpShaders = new GraphicsShader();
 
+            TranslationFlags flags =
+                TranslationFlags.DebugMode |
+                TranslationFlags.Unspecialized;
+
+            if (dividePosXY)
+            {
+                flags |= TranslationFlags.DividePosXY;
+            }
+
             if (addresses.VertexA != 0)
             {
-                gpShaders.Shader[0] = TranslateGraphicsShader(addresses.Vertex, addresses.VertexA);
+                gpShaders.Shader[0] = TranslateGraphicsShader(flags, addresses.Vertex, addresses.VertexA);
             }
             else
             {
-                gpShaders.Shader[0] = TranslateGraphicsShader(addresses.Vertex);
+                gpShaders.Shader[0] = TranslateGraphicsShader(flags, addresses.Vertex);
             }
 
-            gpShaders.Shader[1] = TranslateGraphicsShader(addresses.TessControl);
-            gpShaders.Shader[2] = TranslateGraphicsShader(addresses.TessEvaluation);
-            gpShaders.Shader[3] = TranslateGraphicsShader(addresses.Geometry);
-            gpShaders.Shader[4] = TranslateGraphicsShader(addresses.Fragment);
+            gpShaders.Shader[1] = TranslateGraphicsShader(flags, addresses.TessControl);
+            gpShaders.Shader[2] = TranslateGraphicsShader(flags, addresses.TessEvaluation);
+            gpShaders.Shader[3] = TranslateGraphicsShader(flags, addresses.Geometry);
+            gpShaders.Shader[4] = TranslateGraphicsShader(flags, addresses.Fragment);
 
             BackpropQualifiers(gpShaders);
 
@@ -218,7 +227,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
             return new CachedShader(program, codeCached);
         }
 
-        private CachedShader TranslateGraphicsShader(ulong gpuVa, ulong gpuVaA = 0)
+        private CachedShader TranslateGraphicsShader(TranslationFlags flags, ulong gpuVa, ulong gpuVaA = 0)
         {
             if (gpuVa == 0)
             {
@@ -227,10 +236,6 @@ namespace Ryujinx.Graphics.Gpu.Shader
 
             ShaderProgram program;
 
-            const TranslationFlags flags =
-                TranslationFlags.DebugMode |
-                TranslationFlags.Unspecialized;
-
             int[] codeCached = null;
 
             if (gpuVaA != 0)
@@ -345,7 +350,9 @@ namespace Ryujinx.Graphics.Gpu.Shader
 
         private ShaderCapabilities GetShaderCapabilities()
         {
-            return new ShaderCapabilities(_context.Capabilities.StorageBufferOffsetAlignment);
+            return new ShaderCapabilities(
+                _context.Capabilities.MaximumViewportDimensions,
+                _context.Capabilities.StorageBufferOffsetAlignment);
         }
     }
 }
\ No newline at end of file