aboutsummaryrefslogtreecommitdiff
path: root/Ryujinx.Graphics.Shader/ShaderHeader.cs
diff options
context:
space:
mode:
authorgdk <gab.dark.100@gmail.com>2019-10-13 03:02:07 -0300
committerThog <thog@protonmail.com>2020-01-09 02:13:00 +0100
commit1876b346fea647e8284a66bb6d62c38801035cff (patch)
tree6eeff094298cda84d1613dc5ec0691e51d7b35f1 /Ryujinx.Graphics.Shader/ShaderHeader.cs
parentf617fb542a0e3d36012d77a4b5acbde7b08902f2 (diff)
Initial work
Diffstat (limited to 'Ryujinx.Graphics.Shader/ShaderHeader.cs')
-rw-r--r--Ryujinx.Graphics.Shader/ShaderHeader.cs170
1 files changed, 170 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Shader/ShaderHeader.cs b/Ryujinx.Graphics.Shader/ShaderHeader.cs
new file mode 100644
index 00000000..94c57435
--- /dev/null
+++ b/Ryujinx.Graphics.Shader/ShaderHeader.cs
@@ -0,0 +1,170 @@
+using Ryujinx.Graphics.Shader.Decoders;
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Graphics.Shader
+{
+ 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 int DepthRegister
+ {
+ get
+ {
+ int count = 0;
+
+ for (int index = 0; index < OmapTargets.Length; index++)
+ {
+ for (int component = 0; component < 4; component++)
+ {
+ if (OmapTargets[index].ComponentEnabled(component))
+ {
+ count++;
+ }
+ }
+ }
+
+ // Depth register is always two registers after the last color output.
+ return count + 1;
+ }
+ }
+
+ 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