public static CompiledEffect FromString(
UnmanagedLibrary dx9Handle,
string source,
CompilerOptions options)
{
return(new CompiledEffect(
dx9Handle,
source,
options));
}
CompiledEffect(
UnmanagedLibrary dx9Handle,
string source,
CompilerOptions options)
{
m_dx9Handle = dx9Handle;
m_d3DXCreateEffectCompiler = m_dx9Handle
.GetUnmanagedFunction <D3DXCreateEffectCompilerProc>(
EffectCompilerFuncName);
SourceCode = source;
CompileFlags = options;
CompileSucceeded = false;
var errorbuf = default(ID3DXBuffer);
var compiler = default(ID3DXEffectCompiler);
try
{
var len = Encoding.ASCII.GetByteCount(SourceCode);
var hr = m_d3DXCreateEffectCompiler(
SourceCode,
(uint)len,
null,
IntPtr.Zero,
options.ToD3DXSHADER(),
out compiler,
out errorbuf);
ErrorMessage = errorbuf != null
? errorbuf.AsAnsiString()
: string.Empty;
if (!D3DXUtil.Succeeded(hr))
{
return;
}
CompileSucceeded = true;
var maybeEffectDesc = compiler.GetDesc();
if (!maybeEffectDesc.HasValue)
{
return;
}
var effectDesc = maybeEffectDesc.Value;
var dxEffectCompiler = compiler;
var functions = from funcIndex in Enumerable.Range(
0,
(int)effectDesc.Functions)
let funcHandle =
dxEffectCompiler.GetFunction((uint)funcIndex)
let funcDesc =
dxEffectCompiler.GetFunctionDesc(funcHandle)
// funcDesc.Annotations are always empty, so we ignore them
select
funcDesc.HasValue
? funcDesc.Value.Name.ReadAsAnsiString()
: string.Empty;
var effectCompiler = compiler;
var topLevelParams =
from paramIndex in Enumerable.Range(
0,
(int)effectDesc.Parameters)
select effectCompiler.GetParameter(
IntPtr.Zero,
paramIndex);
Creator = effectDesc.Creator.ReadAsAnsiString();
Functions = functions.ToArray();
TopLevelParameters = topLevelParams.ToArray();
return;
}
finally
{
if (errorbuf != null)
{
Marshal.ReleaseComObject(errorbuf);
}
if (compiler != null)
{
Marshal.ReleaseComObject(compiler);
}
}
}