/// <inheritdoc/>
public CompilationResult Compile(string shaderSource, string entryPoint, string profile, string sourceFileName = "unknown")
{
string realShaderSource;
if (profile == "glsl")
{
// Compile directly as GLSL
realShaderSource = shaderSource;
}
else
{
// Convert HLSL to GLSL
PipelineStage stage;
var profileParts = profile.Split('_');
switch (profileParts[0])
{
case "vs":
stage = PipelineStage.Vertex;
break;
case "ps":
stage = PipelineStage.Pixel;
break;
case "gs":
case "hs":
case "ds":
case "cs":
throw new NotImplementedException("This shader stage can't be converted to OpenGL.");
default:
throw new NotSupportedException("Unknown shader profile.");
}
// Convert from HLSL to GLSL
// Note that for now we parse from shader as a string, but we could simply clone effectPass.Shader to avoid multiple parsing.
var glslConvertor = new ShaderConverter(isOpenGLES);
var glslShader = glslConvertor.Convert(shaderSource, entryPoint, stage);
// Add std140 layout
foreach (var constantBuffer in glslShader.Declarations.OfType<ConstantBuffer>())
{
constantBuffer.Qualifiers |= new LayoutQualifier(new LayoutKeyValue("std140"));
}
// Output the result
var glslShaderWriter = new HlslToGlslWriter();
if (isOpenGLES)
{
glslShaderWriter.TrimFloatSuffix = true;
glslShaderWriter.GenerateUniformBlocks = false;
foreach (var variable in glslShader.Declarations.OfType<Variable>())
{
if (variable.Qualifiers.Contains(ParameterQualifier.In))
{
variable.Qualifiers.Values.Remove(ParameterQualifier.In);
// "in" becomes "attribute" in VS, "varying" in other stages
variable.Qualifiers.Values.Add(
stage == PipelineStage.Vertex
? global::SiliconStudio.Shaders.Ast.Glsl.ParameterQualifier.Attribute
: global::SiliconStudio.Shaders.Ast.Glsl.ParameterQualifier.Varying);
}
if (variable.Qualifiers.Contains(ParameterQualifier.Out))
{
variable.Qualifiers.Values.Remove(ParameterQualifier.Out);
variable.Qualifiers.Values.Add(global::SiliconStudio.Shaders.Ast.Glsl.ParameterQualifier.Varying);
}
}
}
// Write shader
glslShaderWriter.Visit(glslShader);
// Build shader source
var glslShaderCode = new StringBuilder();
// Append some header depending on target
if (!isOpenGLES)
{
glslShaderCode
.AppendLine("#version 420")
.AppendLine();
if (stage == PipelineStage.Pixel)
glslShaderCode
.AppendLine("out vec4 gl_FragData[1];")
.AppendLine();
}
if (isOpenGLES)
{
if (stage == PipelineStage.Pixel)
glslShaderCode
.AppendLine("precision mediump float;")
.AppendLine();
}
glslShaderCode.Append(glslShaderWriter.Text);
realShaderSource = glslShaderCode.ToString();
}
var shaderBytecodeData = new OpenGLShaderBytecodeData
{
IsBinary = false,
EntryPoint = entryPoint,
Profile = profile,
Source = realShaderSource,
};
// Encode shader source to a byte array (no universal StageBytecode format for OpenGL)
var memoryStream = new MemoryStream();
var binarySerializationWriter = new BinarySerializationWriter(memoryStream);
shaderBytecodeData.Serialize(binarySerializationWriter, ArchiveMode.Serialize);
return new CompilationResult(new ShaderBytecode(memoryStream.ToArray()), false, null);
}
/// <inheritdoc/>
public CompilationResult Compile(string shaderSource, string entryPoint, string profile, string sourceFileName = "unknown")
{
string realShaderSource;
if (profile == "glsl")
{
// Compile directly as GLSL
realShaderSource = shaderSource;
}
else
{
// Convert HLSL to GLSL
PipelineStage stage;
var profileParts = profile.Split('_');
switch (profileParts[0])
{
case "vs":
stage = PipelineStage.Vertex;
break;
case "ps":
stage = PipelineStage.Pixel;
break;
case "gs":
case "hs":
case "ds":
case "cs":
throw new NotImplementedException("This shader stage can't be converted to OpenGL.");
default:
throw new NotSupportedException("Unknown shader profile.");
}
// Convert from HLSL to GLSL
// Note that for now we parse from shader as a string, but we could simply clone effectPass.Shader to avoid multiple parsing.
var glslConvertor = new ShaderConverter(isOpenGLES);
var glslShader = glslConvertor.Convert(shaderSource, entryPoint, stage);
// Add std140 layout
foreach (var constantBuffer in glslShader.Declarations.OfType <ConstantBuffer>())
{
constantBuffer.Qualifiers |= new LayoutQualifier(new LayoutKeyValue("std140"));
}
// Output the result
var glslShaderWriter = new HlslToGlslWriter();
if (isOpenGLES)
{
glslShaderWriter.TrimFloatSuffix = true;
glslShaderWriter.GenerateUniformBlocks = false;
foreach (var variable in glslShader.Declarations.OfType <Variable>())
{
if (variable.Qualifiers.Contains(ParameterQualifier.In))
{
variable.Qualifiers.Values.Remove(ParameterQualifier.In);
// "in" becomes "attribute" in VS, "varying" in other stages
variable.Qualifiers.Values.Add(
stage == PipelineStage.Vertex
? global::SiliconStudio.Shaders.Ast.Glsl.ParameterQualifier.Attribute
: global::SiliconStudio.Shaders.Ast.Glsl.ParameterQualifier.Varying);
}
if (variable.Qualifiers.Contains(ParameterQualifier.Out))
{
variable.Qualifiers.Values.Remove(ParameterQualifier.Out);
variable.Qualifiers.Values.Add(global::SiliconStudio.Shaders.Ast.Glsl.ParameterQualifier.Varying);
}
}
}
// Write shader
glslShaderWriter.Visit(glslShader);
// Build shader source
var glslShaderCode = new StringBuilder();
// Append some header depending on target
if (!isOpenGLES)
{
glslShaderCode
.AppendLine("#version 420")
.AppendLine();
if (stage == PipelineStage.Pixel)
{
glslShaderCode
.AppendLine("out vec4 gl_FragData[1];")
.AppendLine();
}
}
if (isOpenGLES)
{
if (stage == PipelineStage.Pixel)
{
glslShaderCode
.AppendLine("precision mediump float;")
.AppendLine();
}
}
glslShaderCode.Append(glslShaderWriter.Text);
realShaderSource = glslShaderCode.ToString();
}
var shaderBytecodeData = new OpenGLShaderBytecodeData
{
IsBinary = false,
EntryPoint = entryPoint,
Profile = profile,
Source = realShaderSource,
};
// Encode shader source to a byte array (no universal StageBytecode format for OpenGL)
var memoryStream = new MemoryStream();
var binarySerializationWriter = new BinarySerializationWriter(memoryStream);
shaderBytecodeData.Serialize(binarySerializationWriter, ArchiveMode.Serialize);
return(new CompilationResult(new ShaderBytecode(memoryStream.ToArray()), false, null));
}
