/// <summary>
/// Compiles Shaders related to this effect.
/// </summary>
/// <param name="device"></param>
/// <returns></returns>
public static List <Shader> CompileAll(Device device, ShaderLibrary library)
{
List <Shader> shaders = new List <Shader>();
foreach (Program program in library.Programs)
{
Shader shader = new Shader(device);
if (program.VertexShader != null)
{
foreach (Source source in from n in program.VertexShader.Includes
from m in library.Sources
where n.Source == m.ID
select m)
{
shader.AppendVertexSource(source.Code);
}
}
if (program.GeometryShader != null)
{
shader.InputTopology = program.GeometryShader.InputTopology;
shader.OutputTopology = program.GeometryShader.OutputTopology;
shader.OutputVertexCount = program.GeometryShader.OutputVertexCount;
foreach (Source source in from n in program.GeometryShader.Includes
from m in library.Sources
where n.Source == m.ID
select m)
{
shader.AppendGeometrySource(source.Code);
}
}
if (program.FragmentShader != null)
{
foreach (Source source in from n in program.FragmentShader.Includes
from m in library.Sources
where n.Source == m.ID
select m)
{
shader.AppendFragmentSource(source.Code);
}
}
ShaderCompileResult compileResult = shader.Compile();
if (!compileResult.HasError)
{
shaders.Add(shader);
}
else
{
throw new Exception(compileResult.Summary);
}
}
return(shaders);
}
/// <summary>
/// Compiles all Shader Source code into a workable program. Will only
/// compile a Shader Type, Vertex, Fragment or Geometry if the Source for
/// each program is greater than 0 in length.
/// </summary>
/// <returns></returns>
public ShaderCompileResult Compile()
{
ShaderCompileResult compileResult = new ShaderCompileResult();
// Delete the Vertex Shader
this.DestroyVertexShader();
// Delete the Fragment Shader
this.DestroyFragmentShader();
// Delete the Geometry Shader
this.DestroyGeometryShader();
// Compile Vertex Source
if (this.vertexSource.Length > 0)
{
string error = string.Empty;
if (!this.CompileVertexSource(out error))
{
compileResult.HasError = true;
compileResult.VertexShaderError = error;
}
}
// Compile Fragment Source
if (this.fragmentSource.Length > 0)
{
string error = string.Empty;
if (!this.CompileFragmentSource(out error))
{
compileResult.HasError = true;
compileResult.FragmentShaderError = error;
}
}
// Compile Geometry Source
if (this.geometrySource.Length > 0)
{
string error = string.Empty;
if (!this.CompileGeometrySource(out error))
{
compileResult.HasError = true;
compileResult.GeometryShaderError = error;
}
}
// Exit on failer to compile shaders
if (compileResult.HasError)
{
return(compileResult);
}
if (this.vertexHandle != 0)
{
Gl.glAttachObjectARB(this.programHandle, this.vertexHandle);
}
if (this.geometryHandle != 0)
{
Gl.glAttachObjectARB(this.programHandle, this.geometryHandle);
}
if (this.fragmentHandle != 0)
{
Gl.glAttachObjectARB(this.programHandle, this.fragmentHandle);
}
Gl.glLinkProgramARB(this.programHandle);
#region Error Handling
int result;
Gl.glGetObjectParameterivARB(this.programHandle, Gl.GL_OBJECT_LINK_STATUS_ARB, out result);
if (result == 0)
{
int infologlength;
int infolength;
Gl.glGetShaderiv(this.programHandle, Gl.GL_INFO_LOG_LENGTH, out infologlength);
string error = string.Empty;
Gl.glGetInfoLogARB(this.programHandle, 8096, out infolength, out error);
compileResult.HasError = true;
compileResult.LinkerError = error;
return(compileResult);
}
#endregion
return(compileResult);
}
/// <summary>
/// Compiles all Shader Source code into a workable program. Will only
/// compile a Shader Type, Vertex, Fragment or Geometry if the Source for
/// each program is greater than 0 in length.
/// </summary>
/// <returns></returns>
public ShaderCompileResult Compile()
{
ShaderCompileResult compileResult = new ShaderCompileResult();
// Delete the Vertex Shader
this.DestroyVertexShader ();
// Delete the Fragment Shader
this.DestroyFragmentShader ();
// Delete the Geometry Shader
this.DestroyGeometryShader ();
// Compile Vertex Source
if(this.vertexSource.Length > 0)
{
string error = string.Empty;
if (!this.CompileVertexSource(out error))
{
compileResult.HasError = true;
compileResult.VertexShaderError = error;
}
}
// Compile Fragment Source
if(this.fragmentSource.Length > 0)
{
string error = string.Empty;
if (!this.CompileFragmentSource(out error))
{
compileResult.HasError = true;
compileResult.FragmentShaderError = error;
}
}
// Compile Geometry Source
if(this.geometrySource.Length > 0)
{
string error = string.Empty;
if (!this.CompileGeometrySource(out error))
{
compileResult.HasError = true;
compileResult.GeometryShaderError = error;
}
}
// Exit on failer to compile shaders
if(compileResult.HasError)
{
return compileResult;
}
if (this.vertexHandle != 0)
{
Gl.glAttachObjectARB(this.programHandle, this.vertexHandle);
}
if (this.geometryHandle != 0)
{
Gl.glAttachObjectARB(this.programHandle, this.geometryHandle);
}
if (this.fragmentHandle != 0)
{
Gl.glAttachObjectARB(this.programHandle, this.fragmentHandle);
}
Gl.glLinkProgramARB(this.programHandle);
#region Error Handling
int result;
Gl.glGetObjectParameterivARB(this.programHandle, Gl.GL_OBJECT_LINK_STATUS_ARB, out result);
if (result == 0)
{
int infologlength;
int infolength;
Gl.glGetShaderiv(this.programHandle, Gl.GL_INFO_LOG_LENGTH, out infologlength);
string error = string.Empty;
Gl.glGetInfoLogARB(this.programHandle, 8096, out infolength, out error);
compileResult.HasError = true;
compileResult.LinkerError = error;
return compileResult;
}
#endregion
return compileResult;
}
