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Copy pathShaderConverter.py
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import lz4.block
from ..import EndianBinaryReader
header = """
///////////////////////////////////////////
//
// NOTE: This is *not* a valid shader file
//
///////////////////////////////////////////
"""
class ShaderConverter:
def Convert(shader) -> str:
if shader.m_SubProgramBlob: #5.3 - 5.4
decompressedBytes = lz4.block.decompress(shader.m_SubProgramBlob, shader.decompressedSize)
return ShaderProgram(EndianBinaryReader(decompressedBytes)).Export(shader.m_Script.decode('utf8'))
if shader.compressedBlob: #5.5 and up
return ConvertMultiple(shader)[0]
return header + shader.m_Script.decode('utf8')
def ConvertMultiple(shader) -> str:
if shader.compressedBlob: #5.5 and up
strs = []
for i in range(shader.platforms.Length):
reader = EndianBinaryReader(lz4.block.decompress(shader.compressedBlob[shader.offsets[i] : shader.offsets[i] + shader.compressedLengths[i]], hader.decompressedLengths[i]))
program = ShaderProgram(reader)
m_Script = ConvertSerializedShader(shader.m_ParsedForm, shader.platforms[i])
strs.append(header + program.Export(m_Script))
return ''.join(str)
return ""
def ConvertSerializedShader(m_ParsedForm, platform) -> str: #(SerializedShader, ShaderCompilerPlatform)
sb = []
sb.append(f"Shader \"{m_ParsedForm.m_Name}\" {{\n")
sb.append(ConvertSerializedProperties(m_ParsedForm.m_PropInfo))
for m_SubShader in m_ParsedForm.m_SubShaders:
sb.append(ConvertSerializedSubShader(m_SubShader, platform))
if m_ParsedForm.m_FallbackName:
sb.append(f"Fallback \"{m_ParsedForm.m_FallbackName}\"\n")
if m_ParsedForm.m_CustomEditorName:
sb.append(f"CustomEditor \"{m_ParsedForm.m_CustomEditorName}\"\n")
sb.append("}")
return ''.join()
def ConvertSerializedSubShader(m_SubShader, platform) -> str: #(SerializedSubShader, ShaderCompilerPlatform)
sb = []
sb.append("SubShader {\n")
if m_SubShader.m_LOD != 0:
sb.append(f" LOD {m_SubShader.m_LOD}\n")
sb.append(ConvertSerializedTagMap(m_SubShader.m_Tags, 1))
for m_Passe in m_SubShader.m_Passes:
sb.append(ConvertSerializedPass(m_Passe, platform))
sb.append("}\n")
return ''.join()
def ConvertSerializedPass(m_Passe, platform) -> str: #(SerializedPass , ShaderCompilerPlatform)
sb = []
if m_Passe.m_Type == PassType.kPassTypeNormal:
sb.append(" Pass ")
elif m_Passe.m_Type == PassType.kPassTypeUse:
sb.append(" UsePass ")
elif m_Passe.m_Type == PassType.kPassTypeGrab:
sb.append(" GrabPass ")
if m_Passe.m_Type == PassType.kPassTypeUse:
sb.append(f"\"{m_Passe.m_UseName}\"\n")
else:
sb.append("{\n")
if m_Passe.m_Type == PassType.kPassTypeGrab:
if m_Passe.m_TextureName:
sb.append(f" \"{m_Passe.m_TextureName}\"\n")
else:
sb.append(ConvertSerializedShaderState(m_Passe.m_State))
if len(m_Passe.progVertex.m_SubPrograms):
sb.append("Program \"vp\" {\n")
sb.append(ConvertSerializedSubPrograms(m_Passe.progVertex.m_SubPrograms, platform))
sb.append("}\n")
if len(m_Passe.progFragment.m_SubPrograms):
sb.append("Program \"fp\" {\n")
sb.append(ConvertSerializedSubPrograms(m_Passe.progFragment.m_SubPrograms, platform))
sb.append("}\n")
if len(m_Passe.progGeometry.m_SubPrograms):
sb.append("Program \"gp\" {\n")
sb.append(ConvertSerializedSubPrograms(m_Passe.progGeometry.m_SubPrograms, platform))
sb.append("}\n")
if len(m_Passe.progHull.m_SubPrograms):
sb.append("Program \"hp\" {\n")
sb.append(ConvertSerializedSubPrograms(m_Passe.progHull.m_SubPrograms, platform))
sb.append("}\n")
if len(m_Passe.progDomain.m_SubPrograms):
sb.append("Program \"dp\" {\n")
sb.append(ConvertSerializedSubPrograms(m_Passe.progDomain.m_SubPrograms, platform))
sb.append("}\n")
sb.append("}\n")
return ''.join(sb)
def ConvertSerializedSubPrograms(m_SubPrograms, platform)-> str: #(SerializedSubProgram[], ShaderCompilerPlatform)
sb = []
groups = {}
for x in m_SubPrograms:
if x.m_BlobIndex in groups:
groups[x.m_BlobIndex].append(x)
else:
groups[x.m_BlobIndex]=[x]
for group in groups.values():
var programs = group.GroupBy(x => x.m_GpuProgramType);
foreach (var program in programs)
if CheckGpuProgramUsable(platform, program.Key):
var subPrograms = program.ToList();
var isTier = subPrograms.Count > 1;
foreach (var subProgram in subPrograms)
sb.append(f"SubProgram \"{GetPlatformString(platform)} ")
if isTier:
sb.append(f"hw_tier{subProgram.m_ShaderHardwareTier:00} ")
sb.append("\" {\n");
sb.append(f"GpuProgramIndex {subProgram.m_BlobIndex}\n")
sb.append("}\n");
break;
return ''.join();
def ConvertSerializedShaderState(SerializedShaderState m_State): #string
sb = []
if !string.IsNullOrEmpty(m_State.m_Name):
sb.append(f" Name \"{m_State.m_Name}\"\n")
if m_State.m_LOD != 0:
sb.append(f" LOD {m_State.m_LOD}\n")
sb.append(ConvertSerializedTagMap(m_State.m_Tags, 2));
sb.append(ConvertSerializedShaderRTBlendState(m_State.rtBlend));
if m_State.alphaToMask.val > 0f:
sb.append(" AlphaToMask On\n");
if m_State.zClip?.val != 1f: #ZClip On
sb.append(" ZClip Off\n");
if m_State.zTest.val != 4f: #ZTest LEqual
sb.append(" ZTest ");
switch (m_State.zTest.val) //enum CompareFunction
case 0f: //kFuncDisabled
sb.append("Off");
break;
case 1f: //kFuncNever
sb.append("Never");
break;
case 2f: //kFuncLess
sb.append("Less");
break;
case 3f: //kFuncEqual
sb.append("Equal");
break;
case 5f: //kFuncGreater
sb.append("Greater");
break;
case 6f: //kFuncNotEqual
sb.append("NotEqual");
break;
case 7f: //kFuncGEqual
sb.append("GEqual");
break;
case 8f: //kFuncAlways
sb.append("Always");
break;
sb.append("\n");
if m_State.zWrite.val != 1f: #ZWrite On
sb.append(" ZWrite Off\n");
if m_State.culling.val != 2f: #Cull Back
sb.append(" Cull ");
switch (m_State.culling.val) //enum CullMode
case 0f: //kCullOff
sb.append("Off");
break;
case 1f: //kCullFront
sb.append("Front");
break;
sb.append("\n");
if m_State.offsetFactor.val != 0f || m_State.offsetUnits.val != 0f:
sb.append(f" Offset {m_State.offsetFactor.val}, {m_State.offsetUnits.val}\n")
//TODO Stencil
//TODO Fog
if m_State.lighting:
sb.append(f" Lighting {(m_State.lighting ? "On" : "Off")}\n")
sb.append(f" GpuProgramID {m_State.gpuProgramID}\n")
return ''.join();
def ConvertSerializedShaderRTBlendState(SerializedShaderRTBlendState[] rtBlend): #string
//TODO Blend
sb = []
/*for (var i = 0; i < rtBlend.Length; i++)
var blend = rtBlend[i];
if (!blend.srcBlend.val.Equals(1f) ||
!blend.destBlend.val.Equals(0f) ||
!blend.srcBlendAlpha.val.Equals(1f) ||
!blend.destBlendAlpha.val.Equals(0f))
sb.append(" Blend ");
sb.append(f"{i} ")
sb.append('\n');
}*/
return ''.join();
def ConvertSerializedTagMap(SerializedTagMap m_Tags, int intent): #string
sb = []
if m_Tags.tags.Length > 0:
sb.append(new string(' ', intent));
sb.append("Tags { ");
foreach (var pair in m_Tags.tags)
sb.append(f"\"{pair.Key}\" = \"{pair.Value}\" ")
sb.append("}\n");
return ''.join();
def ConvertSerializedProperties(SerializedProperties m_PropInfo): #string
sb = []
sb.append("Properties {\n");
foreach (var m_Prop in m_PropInfo.m_Props)
sb.append(ConvertSerializedProperty(m_Prop));
sb.append("}\n");
return ''.join();
def ConvertSerializedProperty(SerializedProperty m_Prop): #string
sb = []
foreach (var m_Attribute in m_Prop.m_Attributes)
sb.append(f"[{m_Attribute}] ")
//TODO Flag
sb.append(f"{m_Prop.m_Name} (\"{m_Prop.m_Description}\", ")
switch (m_Prop.m_Type)
case SerializedPropertyType.kColor:
sb.append("Color");
break;
case SerializedPropertyType.kVector:
sb.append("Vector");
break;
case SerializedPropertyType.kFloat:
sb.append("Float");
break;
case SerializedPropertyType.kRange:
sb.append(f"Range({m_Prop.m_DefValue[1]}, {m_Prop.m_DefValue[2]})")
break;
case SerializedPropertyType.kTexture:
switch (m_Prop.m_DefTexture.m_TexDim)
case TextureDimension.kTexDimAny:
sb.append("any");
break;
case TextureDimension.kTexDim2D:
sb.append("2D");
break;
case TextureDimension.kTexDim3D:
sb.append("3D");
break;
case TextureDimension.kTexDimCUBE:
sb.append("Cube");
break;
case TextureDimension.kTexDim2DArray:
sb.append("2DArray");
break;
case TextureDimension.kTexDimCubeArray:
sb.append("CubeArray");
break;
break;
sb.append(") = ");
switch (m_Prop.m_Type)
case SerializedPropertyType.kColor:
case SerializedPropertyType.kVector:
sb.append(f"({m_Prop.m_DefValue[0]},{m_Prop.m_DefValue[1]},{m_Prop.m_DefValue[2]},{m_Prop.m_DefValue[3]})")
break;
case SerializedPropertyType.kFloat:
case SerializedPropertyType.kRange:
sb.append(m_Prop.m_DefValue[0]);
break;
case SerializedPropertyType.kTexture:
sb.append(f"\"{m_Prop.m_DefTexture.m_DefaultName}\" {{ }}")
break;
default:
throw new ArgumentOutOfRangeException();
sb.append("\n");
return ''.join();
def CheckGpuProgramUsable(ShaderCompilerPlatform platform, ShaderGpuProgramType programType): #bool
switch (platform)
case ShaderCompilerPlatform.kShaderCompPlatformGL:
return programType == ShaderGpuProgramType.kShaderGpuProgramGLLegacy;
case ShaderCompilerPlatform.kShaderCompPlatformD3D9:
return programType == ShaderGpuProgramType.kShaderGpuProgramDX9VertexSM20
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX9VertexSM30
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX9PixelSM20
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX9PixelSM30;
case ShaderCompilerPlatform.kShaderCompPlatformXbox360:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformPS3:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformD3D11:
return programType == ShaderGpuProgramType.kShaderGpuProgramDX11VertexSM40
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX11VertexSM50
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX11PixelSM40
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX11PixelSM50
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX11GeometrySM40
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX11GeometrySM50
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX11HullSM50
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX11DomainSM50;
case ShaderCompilerPlatform.kShaderCompPlatformGLES20:
return programType == ShaderGpuProgramType.kShaderGpuProgramGLES;
case ShaderCompilerPlatform.kShaderCompPlatformNaCl: //Obsolete
throw new NotSupportedException();
case ShaderCompilerPlatform.kShaderCompPlatformFlash: //Obsolete
throw new NotSupportedException();
case ShaderCompilerPlatform.kShaderCompPlatformD3D11_9x:
return programType == ShaderGpuProgramType.kShaderGpuProgramDX10Level9Vertex
|| programType == ShaderGpuProgramType.kShaderGpuProgramDX10Level9Pixel;
case ShaderCompilerPlatform.kShaderCompPlatformGLES3Plus:
return programType == ShaderGpuProgramType.kShaderGpuProgramGLES31AEP
|| programType == ShaderGpuProgramType.kShaderGpuProgramGLES31
|| programType == ShaderGpuProgramType.kShaderGpuProgramGLES3;
case ShaderCompilerPlatform.kShaderCompPlatformPSP2:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformPS4:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformXboxOne:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformPSM: //Unknown
throw new NotSupportedException();
case ShaderCompilerPlatform.kShaderCompPlatformMetal:
return programType == ShaderGpuProgramType.kShaderGpuProgramMetalVS
|| programType == ShaderGpuProgramType.kShaderGpuProgramMetalFS;
case ShaderCompilerPlatform.kShaderCompPlatformOpenGLCore:
return programType == ShaderGpuProgramType.kShaderGpuProgramGLCore32
|| programType == ShaderGpuProgramType.kShaderGpuProgramGLCore41
|| programType == ShaderGpuProgramType.kShaderGpuProgramGLCore43;
case ShaderCompilerPlatform.kShaderCompPlatformN3DS:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformWiiU:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformVulkan:
return programType == ShaderGpuProgramType.kShaderGpuProgramSPIRV;
case ShaderCompilerPlatform.kShaderCompPlatformSwitch:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
case ShaderCompilerPlatform.kShaderCompPlatformXboxOneD3D12:
return programType == ShaderGpuProgramType.kShaderGpuProgramConsole;
default:
throw new NotSupportedException();
def GetPlatformString(ShaderCompilerPlatform platform): #string
switch (platform)
case ShaderCompilerPlatform.kShaderCompPlatformGL:
return "openGL";
case ShaderCompilerPlatform.kShaderCompPlatformD3D9:
return "d3d9";
case ShaderCompilerPlatform.kShaderCompPlatformXbox360:
return "xbox360";
case ShaderCompilerPlatform.kShaderCompPlatformPS3:
return "ps3";
case ShaderCompilerPlatform.kShaderCompPlatformD3D11:
return "d3d11";
case ShaderCompilerPlatform.kShaderCompPlatformGLES20:
return "gles";
case ShaderCompilerPlatform.kShaderCompPlatformNaCl:
return "glesdesktop";
case ShaderCompilerPlatform.kShaderCompPlatformFlash:
return "flash";
case ShaderCompilerPlatform.kShaderCompPlatformD3D11_9x:
return "d3d11_9x";
case ShaderCompilerPlatform.kShaderCompPlatformGLES3Plus:
return "gles3";
case ShaderCompilerPlatform.kShaderCompPlatformPSP2:
return "psp2";
case ShaderCompilerPlatform.kShaderCompPlatformPS4:
return "ps4";
case ShaderCompilerPlatform.kShaderCompPlatformXboxOne:
return "xboxone";
case ShaderCompilerPlatform.kShaderCompPlatformPSM:
return "psm";
case ShaderCompilerPlatform.kShaderCompPlatformMetal:
return "metal";
case ShaderCompilerPlatform.kShaderCompPlatformOpenGLCore:
return "glcore";
case ShaderCompilerPlatform.kShaderCompPlatformN3DS:
return "n3ds";
case ShaderCompilerPlatform.kShaderCompPlatformWiiU:
return "wiiu";
case ShaderCompilerPlatform.kShaderCompPlatformVulkan:
return "vulkan";
case ShaderCompilerPlatform.kShaderCompPlatformSwitch:
return "switch";
case ShaderCompilerPlatform.kShaderCompPlatformXboxOneD3D12:
return "xboxone_d3d12";
default:
return "unknown";
public class ShaderProgram
private ShaderSubProgram[] m_SubPrograms;
public ShaderProgram(BinaryReader reader)
var subProgramsCapacity = reader.ReadInt32();
m_SubPrograms = new ShaderSubProgram[subProgramsCapacity];
for (int i = 0; i < subProgramsCapacity; i++)
reader.BaseStream.Position = 4 + i * 8;
var offset = reader.ReadInt32();
reader.BaseStream.Position = offset;
m_SubPrograms[i] = new ShaderSubProgram(reader);
public string Export(string shader)
var evaluator = new MatchEvaluator(match =>
var index = int.Parse(match.Groups[1].Value);
return m_SubPrograms[index].Export();
});
shader = Regex.Replace(shader, "GpuProgramIndex (.+)", evaluator);
return shader;
}
public class ShaderSubProgram
private int m_Version;
public ShaderGpuProgramType m_ProgramType;
public string[] m_Keywords;
public string[] m_LocalKeywords;
public byte[] m_ProgramCode;
public ShaderSubProgram(BinaryReader reader)
//LoadGpuProgramFromData
//201509030 - Unity 5.3
//201510240 - Unity 5.4
//201608170 - Unity 5.5
//201609010 - Unity 5.6, 2017.1 & 2017.2
//201708220 - Unity 2017.3, Unity 2017.4 & Unity 2018.1
//201802150 - Unity 2018.2 & Unity 2018.3
//201806140 - Unity 2019.1
m_Version = reader.ReadInt32();
m_ProgramType = (ShaderGpuProgramType)reader.ReadInt32();
reader.BaseStream.Position += 12;
if m_Version >= 201608170:
reader.BaseStream.Position += 4;
var m_KeywordsSize = reader.ReadInt32();
m_Keywords = new string[m_KeywordsSize];
for (int i = 0; i < m_KeywordsSize; i++)
m_Keywords[i] = reader.ReadAlignedString();
if m_Version >= 201806140:
var m_LocalKeywordsSize = reader.ReadInt32();
m_LocalKeywords = new string[m_LocalKeywordsSize];
for (int i = 0; i < m_LocalKeywordsSize; i++)
m_LocalKeywords[i] = reader.ReadAlignedString();
m_ProgramCode = reader.ReadBytes(reader.ReadInt32());
reader.AlignStream();
//TODO
public string Export()
sb = []
if m_Keywords.Length > 0:
sb.append("Keywords { ");
foreach (string keyword in m_Keywords)
sb.append(f"\"{keyword}\" ")
sb.append("}\n");
sb.append("\"");
if m_ProgramCode.Length > 0:
switch (m_ProgramType)
case ShaderGpuProgramType.kShaderGpuProgramGLLegacy:
case ShaderGpuProgramType.kShaderGpuProgramGLES31AEP:
case ShaderGpuProgramType.kShaderGpuProgramGLES31:
case ShaderGpuProgramType.kShaderGpuProgramGLES3:
case ShaderGpuProgramType.kShaderGpuProgramGLES:
case ShaderGpuProgramType.kShaderGpuProgramGLCore32:
case ShaderGpuProgramType.kShaderGpuProgramGLCore41:
case ShaderGpuProgramType.kShaderGpuProgramGLCore43:
sb.append(Encoding.UTF8.GetString(m_ProgramCode));
break;
case ShaderGpuProgramType.kShaderGpuProgramDX9VertexSM20:
case ShaderGpuProgramType.kShaderGpuProgramDX9VertexSM30:
case ShaderGpuProgramType.kShaderGpuProgramDX9PixelSM20:
case ShaderGpuProgramType.kShaderGpuProgramDX9PixelSM30:
/*var shaderBytecode = new ShaderBytecode(m_ProgramCode);
sb.append(shaderBytecode.Disassemble());*/
sb.append("// shader disassembly not supported on DXBC");
break;
case ShaderGpuProgramType.kShaderGpuProgramDX10Level9Vertex:
case ShaderGpuProgramType.kShaderGpuProgramDX10Level9Pixel:
case ShaderGpuProgramType.kShaderGpuProgramDX11VertexSM40:
case ShaderGpuProgramType.kShaderGpuProgramDX11VertexSM50:
case ShaderGpuProgramType.kShaderGpuProgramDX11PixelSM40:
case ShaderGpuProgramType.kShaderGpuProgramDX11PixelSM50:
case ShaderGpuProgramType.kShaderGpuProgramDX11GeometrySM40:
case ShaderGpuProgramType.kShaderGpuProgramDX11GeometrySM50:
case ShaderGpuProgramType.kShaderGpuProgramDX11HullSM50:
case ShaderGpuProgramType.kShaderGpuProgramDX11DomainSM50:
int start = 6;
if m_Version == 201509030: # 5.3
start = 5;
var buff = new byte[m_ProgramCode.Length - start];
Buffer.BlockCopy(m_ProgramCode, start, buff, 0, buff.Length);
/*var shaderBytecode = new ShaderBytecode(buff);
sb.append(shaderBytecode.Disassemble());*/
sb.append("// shader disassembly not supported on DXBC");
break;
case ShaderGpuProgramType.kShaderGpuProgramMetalVS:
case ShaderGpuProgramType.kShaderGpuProgramMetalFS:
using (var reader = new BinaryReader(new MemoryStream(m_ProgramCode)))
var fourCC = reader.ReadUInt32();
if fourCC == 0xf00dcafe:
int offset = reader.ReadInt32();
reader.BaseStream.Position = offset;
var entryName = reader.ReadStringToNull();
var buff = reader.ReadBytes((int)(reader.BaseStream.Length - reader.BaseStream.Position));
sb.append(Encoding.UTF8.GetString(buff));
break;
case ShaderGpuProgramType.kShaderGpuProgramSPIRV:
sb.append("// shader disassembly not supported on SPIR-V\n");
sb.append("// https://github.com/KhronosGroup/SPIRV-Cross");
break;
case ShaderGpuProgramType.kShaderGpuProgramConsole:
sb.append(Encoding.UTF8.GetString(m_ProgramCode));
break;
default:
sb.append(f"//shader disassembly not supported on {m_ProgramType}")
break;
sb.append('"');
return ''.join();
}