public DeviceResourceContext(GraphicsDevice device, Effect effect, VertexDeclaration declaration, ResourceBufferInfo resourceBufferInfo, int indexStructSize)
{
var vertexSize = declaration.CalculateSize();
VertexCount = resourceBufferInfo.VertexCount;
IndexCount = resourceBufferInfo.IndexCount;
IsIndexBufferDynamic = resourceBufferInfo.IsIndexBufferDynamic;
VertexBuffer = Buffer.Vertex.New(device, VertexCount * vertexSize, GraphicsResourceUsage.Dynamic).DisposeBy(this);
if (IsIndexBufferDynamic)
{
IndexBuffer = Buffer.Index.New(device, IndexCount * indexStructSize, GraphicsResourceUsage.Dynamic).DisposeBy(this);
}
else
{
IndexBuffer = Buffer.Index.New(device, resourceBufferInfo.StaticIndices).DisposeBy(this);
IndexBuffer.Reload = graphicsResource => ((Buffer)graphicsResource).Recreate(resourceBufferInfo.StaticIndices);
}
var indexBufferBinding = new IndexBufferBinding(IndexBuffer, indexStructSize == sizeof(int), IndexBuffer.Description.SizeInBytes / indexStructSize);
var vertexBufferBinding = new VertexBufferBinding(VertexBuffer, declaration, VertexCount, vertexSize);
// Creates a VAO
VertexArrayObject = VertexArrayObject.New(device, effect.InputSignature, indexBufferBinding, vertexBufferBinding).DisposeBy(this);
}
public SharedData(GraphicsDevice device, EffectInputSignature defaultSignature)
{
var vertexBuffer = Buffer.Vertex.New(device, QuadsVertices).DisposeBy(this);
// Register reload
vertexBuffer.Reload = (graphicsResource) => ((Buffer)graphicsResource).Recreate(QuadsVertices);
VertexBuffer = VertexArrayObject.New(device, defaultSignature, new VertexBufferBinding(vertexBuffer, VertexPositionTexture.Layout, QuadsVertices.Length, VertexPositionTexture.Size)).DisposeBy(this);
}
/// <summary>
/// Initializes a new instance of the <see cref="GeometricPrimitive{T}"/> class.
/// </summary>
/// <param name="graphicsDevice">The graphics device.</param>
/// <param name="geometryMesh">The geometry mesh.</param>
/// <exception cref="System.InvalidOperationException">Cannot generate more than 65535 indices on feature level HW <= 9.3</exception>
public GeometricPrimitive(GraphicsDevice graphicsDevice, GeometricMeshData <T> geometryMesh)
{
GraphicsDevice = graphicsDevice;
var vertices = geometryMesh.Vertices;
var indices = geometryMesh.Indices;
if (geometryMesh.IsLeftHanded)
{
ReverseWinding(vertices, indices);
}
if (indices.Length < 0xFFFF)
{
var indicesShort = new ushort[indices.Length];
for (int i = 0; i < indicesShort.Length; i++)
{
indicesShort[i] = (ushort)indices[i];
}
IndexBuffer = Buffer.Index.New(graphicsDevice, indicesShort).RecreateWith(indicesShort).DisposeBy(this);
}
else
{
if (graphicsDevice.Features.Profile <= GraphicsProfile.Level_9_3)
{
throw new InvalidOperationException("Cannot generate more than 65535 indices on feature level HW <= 9.3");
}
IndexBuffer = Buffer.Index.New(graphicsDevice, indices).RecreateWith(indices).DisposeBy(this);
IsIndex32Bits = true;
}
// For now it will keep buffers for recreation.
// TODO: A better alternative would be to store recreation parameters so that we can reuse procedural code.
VertexBuffer = Buffer.Vertex.New(graphicsDevice, vertices).RecreateWith(vertices).DisposeBy(this);
vertexArrayObject = VertexArrayObject.New(graphicsDevice, new IndexBufferBinding(IndexBuffer, IsIndex32Bits, indices.Length), new VertexBufferBinding(VertexBuffer, new T().GetLayout(), vertices.Length)).DisposeBy(this);
}
