diff options
| author | gdk <gab.dark.100@gmail.com> | 2019-10-13 03:02:07 -0300 |
|---|---|---|
| committer | Thog <thog@protonmail.com> | 2020-01-09 02:13:00 +0100 |
| commit | 1876b346fea647e8284a66bb6d62c38801035cff (patch) | |
| tree | 6eeff094298cda84d1613dc5ec0691e51d7b35f1 /Ryujinx.Graphics.Shader/ShaderHeader.cs | |
| parent | f617fb542a0e3d36012d77a4b5acbde7b08902f2 (diff) | |
Initial work
Diffstat (limited to 'Ryujinx.Graphics.Shader/ShaderHeader.cs')
| -rw-r--r-- | Ryujinx.Graphics.Shader/ShaderHeader.cs | 170 |
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); + } + } +}
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