internal static ShaderBytecode Compile(string filePath, string entryPoint, string profile)
{
Shader shader = new Shader(filePath);
return shader.ByteCode;
}
/// <summary>
/// Releases all unmanaged resources that are held by this object and deletes all references to other objects.
/// </summary>
public override void Dispose()
{
if (!IsDisposed)
{
base.Dispose();
ByteCode = null;
SwapShader = null;
Window = null;
}
}
/// <summary>
/// Compiles GPU shader programs and stores them in the appropriate static library.
/// <para> </para>
/// This function imports and compiles HLSL source code located within the "Shaders" directory found in the compiled <para/>
/// program folder. Unfortunately, however, shader compilation depends on having a fully initialized rendering engine, <para/>
/// which precludes being able to automate initialization within the static class here. This method is therefore called <para/>
/// automatically during construction of the rendering window. Consequently, it should never be called manually.
/// </summary>
/// <param name="window">A reference to the Direct3D-capable window containing an active rendering engine.</param>
internal static void Initialize(Window3D window)
{
Window = window;
Window.OnClose += Dispose;
string appPath = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
string shaderPath = Path.Combine(appPath, "Shaders");
string[] csFiles = Directory.GetFiles(shaderPath, "*.cx", SearchOption.AllDirectories);
string[] dsFiles = Directory.GetFiles(shaderPath, "*.ds", SearchOption.AllDirectories);
string[] gsFiles = Directory.GetFiles(shaderPath, "*.gs", SearchOption.AllDirectories);
string[] hsFiles = Directory.GetFiles(shaderPath, "*.hs", SearchOption.AllDirectories);
string[] psFiles = Directory.GetFiles(shaderPath, "*.ps", SearchOption.AllDirectories);
string[] vsFiles = Directory.GetFiles(shaderPath, "*.vs", SearchOption.AllDirectories);
Shader cs, ds, gs, hs, ps, vs;
foreach (var csFile in csFiles)
{
cs = new Shader(Window, csFile);
Compute.Add(cs.Name, cs);
}
foreach (var dsFile in dsFiles)
{
ds = new Shader(Window, dsFile);
Domain.Add(ds.Name, ds);
}
foreach (var gsFile in gsFiles)
{
gs = new Shader(Window, gsFile);
Geometry.Add(gs.Name, gs);
}
foreach (var hsFile in hsFiles)
{
hs = new Shader(Window, hsFile);
Hull.Add(hs.Name, hs);
}
foreach (var psFile in psFiles)
{
ps = new Shader(Window, psFile);
Pixel.Add(ps.Name, ps);
}
foreach (var vsFile in vsFiles)
{
vs = new Shader(Window, vsFile);
Vertex.Add(vs.Name, vs);
}
}
/// <summary>
/// Deactivates the shader program in the GPU rendering pipeline, replacing it with whatever shader program was active before.
/// </summary>
public void Deactivate()
{
switch (Type)
{
case ShaderTypes.ComputeShader:
Window.ComputeShader = SwapShader;
SwapShader = null;
return;
case ShaderTypes.DomainShader:
Window.DomainShader = SwapShader;
SwapShader = null;
return;
case ShaderTypes.GeometryShader:
Window.GeometryShader = SwapShader;
SwapShader = null;
return;
case ShaderTypes.HullShader:
Window.HullShader = SwapShader;
SwapShader = null;
return;
case ShaderTypes.PixelShader:
Window.PixelShader = SwapShader;
SwapShader = null;
return;
case ShaderTypes.VertexShader:
Window.VertexShader = SwapShader;
SwapShader = null;
return;
default:
throw new Exception("This branch cannot be reached.");
}
}