public QuadVertexBuffer(int amountQuads, BufferUsageHint usage)
: base(amountQuads * 4, usage)
{
int amountIndices = amountQuads * 6;
if (amountIndices > QuadIndexData.MaxAmountIndices)
{
ushort[] indices = new ushort[amountIndices];
for (ushort i = 0, j = 0; j < amountIndices; i += 4, j += 6)
{
indices[j] = i;
indices[j + 1] = (ushort)(i + 1);
indices[j + 2] = (ushort)(i + 3);
indices[j + 3] = (ushort)(i + 2);
indices[j + 4] = (ushort)(i + 3);
indices[j + 5] = (ushort)(i + 1);
}
OsuGlControl.BindBuffer(BufferTarget.ElementArrayBuffer, QuadIndexData.EboId);
GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(amountIndices * sizeof(ushort)), indices, BufferUsageHint.StaticDraw);
QuadIndexData.MaxAmountIndices = amountIndices;
}
}
public override void Bind(bool forRendering)
{
base.Bind(forRendering);
if (forRendering)
{
OsuGlControl.BindBuffer(BufferTarget.ElementArrayBuffer, LinearIndexData.EboId);
}
}
public virtual void Bind(bool forRendering)
{
Debug.Assert(!isDisposed);
if (OsuGlControl.BindBuffer(BufferTarget.ArrayBuffer, vboId))
{
bindAttributes();
}
}
public LinearVertexBuffer(int amountVertices, BeginMode type, BufferUsageHint usage)
: base(amountVertices, usage)
{
this.type = type;
if (amountVertices > LinearIndexData.MaxAmountIndices)
{
ushort[] indices = new ushort[amountVertices];
for (ushort i = 0; i < amountVertices; i++)
{
indices[i] = i;
}
OsuGlControl.BindBuffer(BufferTarget.ElementArrayBuffer, LinearIndexData.EboId);
GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(amountVertices * sizeof(ushort)), indices, BufferUsageHint.StaticDraw);
LinearIndexData.MaxAmountIndices = amountVertices;
}
}
public void Resize(int amountVertices)
{
Debug.Assert(!isDisposed);
T[] oldVertices = Vertices;
Vertices = new T[amountVertices];
if (oldVertices != null)
{
for (int i = 0; i < oldVertices.Length && i < Vertices.Length; ++i)
{
Vertices[i] = oldVertices[i];
}
}
if (OsuGlControl.BindBuffer(BufferTarget.ArrayBuffer, vboId))
{
bindAttributes();
}
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(Vertices.Length * stride), IntPtr.Zero, usage);
}