/// <summary>
/// Initializes a new instance of <see cref="VertexBuffer"/> class.
/// </summary>
/// <param name="context">Instance of an effect context</param>
/// <param name="resourceId"></param>
/// <param name="vertexBufferProperties"></param>
/// <param name="customVertexBufferProperties"></param>
public VertexBuffer(EffectContext context, System.Guid resourceId, SharpDX.Direct2D1.VertexBufferProperties vertexBufferProperties, CustomVertexBufferProperties customVertexBufferProperties) : base(IntPtr.Zero)
{
unsafe {
var customVertexBufferPropertiesNative = new CustomVertexBufferProperties.__Native();
customVertexBufferProperties.__MarshalTo(ref customVertexBufferPropertiesNative);
var inputElementsNative = new InputElement.__Native[customVertexBufferProperties.InputElements.Length];
try
{
for (int i = 0; i < customVertexBufferProperties.InputElements.Length; i++)
customVertexBufferProperties.InputElements[i].__MarshalTo(ref inputElementsNative[i]);
fixed (void* pInputElements = inputElementsNative)
{
customVertexBufferPropertiesNative.InputElementsPointer = (IntPtr)pInputElements;
customVertexBufferPropertiesNative.ElementCount = customVertexBufferProperties.InputElements.Length;
fixed (void* pInputSignature = customVertexBufferProperties.InputSignature)
{
customVertexBufferPropertiesNative.ShaderBufferSize = customVertexBufferProperties.InputSignature.Length;
customVertexBufferPropertiesNative.ShaderBufferWithInputSignature = (IntPtr)pInputSignature;
context.CreateVertexBuffer(vertexBufferProperties, resourceId, new IntPtr(&customVertexBufferPropertiesNative), this);
}
}
}
finally
{
for (int i = 0; i < inputElementsNative.Length; i++)
inputElementsNative[i].__MarshalFree();
}
}
}
//EffectContext _effectContext;
public override void Initialize(EffectContext effectContext, TransformGraph transformGraph)
{
//WARNING : as soon as TransformGraph.SetSingleTransformNode is called it chain calls the
//SetDrawInformation via a callbac. Unfortunately this is too early because the code below
//within this method is used to populate stateful data needed by the SetDrawInformation call.
//transformGraph.SetSingleTransformNode(this);
var path = Windows.ApplicationModel.Package.Current.InstalledLocation.Path;
byte[] vertexShaderBytecode = NativeFile.ReadAllBytes(path + "\\WaveEffect.cso");
effectContext.LoadVertexShader(GUID_WaveVertexShader, vertexShaderBytecode);
// Only generate the vertex buffer if it has not already been initialized.
vertexBuffer = effectContext.FindVertexBuffer(GUID_WaveVertexBuffer);
if (vertexBuffer == null)
{
//InitializeVertexBuffer(effectContext);
var mesh = GenerateMesh();
// Updating geometry every time the effect is rendered can be costly, so it is
// recommended that vertex buffer remain static if possible (which it is in this
// sample effect).
using (var stream = DataStream.Create(mesh, true, true))
{
var vbProp = new VertexBufferProperties(1, VertexUsage.Static, stream);
var cvbProp = new CustomVertexBufferProperties(vertexShaderBytecode, new[] {
new InputElement("MESH_POSITION", 0, SharpDX.DXGI.Format.R32G32_Float,0,0),
}, Utilities.SizeOf<Vector2>());
// The GUID is optional, and is provided here to register the geometry globally.
// As mentioned above, this avoids duplication if multiple versions of the effect
// are created.
vertexBuffer = new VertexBuffer(effectContext, GUID_WaveVertexBuffer, vbProp, cvbProp);
}
}
PrepareForRender(ChangeType.Properties|ChangeType.Context);
transformGraph.SetSingleTransformNode(this);
}
/// <summary>
/// Initializes a new instance of <see cref="VertexBuffer"/> class.
/// </summary>
/// <param name="context">Instance of an effect context</param>
/// <param name="resourceId"></param>
/// <param name="vertexBufferProperties"></param>
/// <param name="customVertexBufferProperties"></param>
public VertexBuffer(EffectContext context, System.Guid resourceId, SharpDX.Direct2D1.VertexBufferProperties vertexBufferProperties, CustomVertexBufferProperties customVertexBufferProperties) : base(IntPtr.Zero)
{
unsafe {
var customVertexBufferPropertiesNative = new CustomVertexBufferProperties.__Native();
customVertexBufferProperties.__MarshalTo(ref customVertexBufferPropertiesNative);
var inputElementsNative = new InputElement.__Native[customVertexBufferProperties.InputElements.Length];
try
{
for (int i = 0; i < customVertexBufferProperties.InputElements.Length; i++)
{
customVertexBufferProperties.InputElements[i].__MarshalTo(ref inputElementsNative[i]);
fixed(void *pInputElements = inputElementsNative)
{
customVertexBufferPropertiesNative.InputElementsPointer = (IntPtr)pInputElements;
customVertexBufferPropertiesNative.ElementCount = customVertexBufferProperties.InputElements.Length;
fixed(void *pInputSignature = customVertexBufferProperties.InputSignature)
{
customVertexBufferPropertiesNative.ShaderBufferSize = customVertexBufferProperties.InputSignature.Length;
customVertexBufferPropertiesNative.ShaderBufferWithInputSignature = (IntPtr)pInputSignature;
context.CreateVertexBuffer(vertexBufferProperties, resourceId, new IntPtr(&customVertexBufferPropertiesNative), this);
}
}
}
finally
{
for (int i = 0; i < inputElementsNative.Length; i++)
inputElementsNative[i].__MarshalFree(); }
}
}
