From 654e617fe78b0f5cc86d0bcf0625301abff168f5 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Sun, 29 Dec 2019 14:41:50 -0300
Subject: Some code cleanup
---
.../Translation/ShaderHeader.cs | 148 +++++++++++++++++++++
1 file changed, 148 insertions(+)
create mode 100644 Ryujinx.Graphics.Shader/Translation/ShaderHeader.cs
(limited to 'Ryujinx.Graphics.Shader/Translation/ShaderHeader.cs')
diff --git a/Ryujinx.Graphics.Shader/Translation/ShaderHeader.cs b/Ryujinx.Graphics.Shader/Translation/ShaderHeader.cs
new file mode 100644
index 00000000..0c56132d
--- /dev/null
+++ b/Ryujinx.Graphics.Shader/Translation/ShaderHeader.cs
@@ -0,0 +1,148 @@
+using Ryujinx.Graphics.Shader.Decoders;
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Graphics.Shader.Translation
+{
+ struct OutputMapTarget
+ {
+ public bool Red { get; }
+ public bool Green { get; }
+ public bool Blue { get; }
+ public bool Alpha { get; }
+
+ public bool Enabled => Red || Green || Blue || Alpha;
+
+ public OutputMapTarget(bool red, bool green, bool blue, bool alpha)
+ {
+ Red = red;
+ Green = green;
+ Blue = blue;
+ Alpha = alpha;
+ }
+
+ public bool ComponentEnabled(int component)
+ {
+ switch (component)
+ {
+ case 0: return Red;
+ case 1: return Green;
+ case 2: return Blue;
+ case 3: return Alpha;
+ }
+
+ throw new ArgumentOutOfRangeException(nameof(component));
+ }
+ }
+
+ class ShaderHeader
+ {
+ public int SphType { get; }
+ public int Version { get; }
+
+ public ShaderStage Stage { get; }
+
+ public bool MrtEnable { get; }
+
+ public bool KillsPixels { get; }
+
+ public bool DoesGlobalStore { get; }
+
+ public int SassVersion { get; }
+
+ public bool DoesLoadOrStore { get; }
+ public bool DoesFp64 { get; }
+
+ public int StreamOutMask { get; }
+
+ public int ShaderLocalMemoryLowSize { get; }
+
+ public int PerPatchAttributeCount { get; }
+
+ public int ShaderLocalMemoryHighSize { get; }
+
+ public int ThreadsPerInputPrimitive { get; }
+
+ public int ShaderLocalMemoryCrsSize { get; }
+
+ public OutputTopology OutputTopology { get; }
+
+ public int MaxOutputVertexCount { get; }
+
+ public int StoreReqStart { get; }
+ public int StoreReqEnd { get; }
+
+ public OutputMapTarget[] OmapTargets { get; }
+ public bool OmapSampleMask { get; }
+ public bool OmapDepth { get; }
+
+ public ShaderHeader(Span<byte> code)
+ {
+ Span<int> header = MemoryMarshal.Cast<byte, int>(code);
+
+ int commonWord0 = header[0];
+ int commonWord1 = header[1];
+ int commonWord2 = header[2];
+ int commonWord3 = header[3];
+ int commonWord4 = header[4];
+
+ SphType = commonWord0.Extract(0, 5);
+ Version = commonWord0.Extract(5, 5);
+
+ Stage = (ShaderStage)commonWord0.Extract(10, 4);
+
+ // Invalid.
+ if (Stage == ShaderStage.Compute)
+ {
+ Stage = ShaderStage.Vertex;
+ }
+
+ MrtEnable = commonWord0.Extract(14);
+
+ KillsPixels = commonWord0.Extract(15);
+
+ DoesGlobalStore = commonWord0.Extract(16);
+
+ SassVersion = commonWord0.Extract(17, 4);
+
+ DoesLoadOrStore = commonWord0.Extract(26);
+ DoesFp64 = commonWord0.Extract(27);
+
+ StreamOutMask = commonWord0.Extract(28, 4);
+
+ ShaderLocalMemoryLowSize = commonWord1.Extract(0, 24);
+
+ PerPatchAttributeCount = commonWord1.Extract(24, 8);
+
+ ShaderLocalMemoryHighSize = commonWord2.Extract(0, 24);
+
+ ThreadsPerInputPrimitive = commonWord2.Extract(24, 8);
+
+ ShaderLocalMemoryCrsSize = commonWord3.Extract(0, 24);
+
+ OutputTopology = (OutputTopology)commonWord3.Extract(24, 4);
+
+ MaxOutputVertexCount = commonWord4.Extract(0, 12);
+
+ StoreReqStart = commonWord4.Extract(12, 8);
+ StoreReqEnd = commonWord4.Extract(24, 8);
+
+ int type2OmapTarget = header[18];
+ int type2Omap = header[19];
+
+ OmapTargets = new OutputMapTarget[8];
+
+ for (int offset = 0; offset < OmapTargets.Length * 4; offset += 4)
+ {
+ OmapTargets[offset >> 2] = new OutputMapTarget(
+ type2OmapTarget.Extract(offset + 0),
+ type2OmapTarget.Extract(offset + 1),
+ type2OmapTarget.Extract(offset + 2),
+ type2OmapTarget.Extract(offset + 3));
+ }
+
+ OmapSampleMask = type2Omap.Extract(0);
+ OmapDepth = type2Omap.Extract(1);
+ }
+ }
+}
\ No newline at end of file
--
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