public void SetBufferData(OpenGL gl, OGLBufferDataTarget target, uint[] indices, OGLModelUsage usage, bool compress)
{
Size = indices.Length;
Stride = 1;
if (compress)
{
if (indices.Max() < byte.MaxValue)
{
// use a byte buffer instead in order to decrease the buffer size.
var newIdxs = indices.Select(x => (byte)x).ToArray();
SetBufferData(gl, OGLBufferDataTarget.ArrayBuffer, newIdxs, OGLModelUsage.StaticCopy, Stride);
return;
}
else if (indices.Max() < ushort.MaxValue)
{
// use a ushort buffer instead in order to decrease the buffer size.
var newIdxs = indices.Select(x => (ushort)x).ToArray();
SetBufferData(gl, OGLBufferDataTarget.ArrayBuffer, newIdxs, OGLModelUsage.StaticCopy, Stride);
return;
}
}
SetBufferData(gl, SharpGLHelper.OGLBufferDataTarget.ArrayBuffer, indices, SharpGLHelper.OGLModelUsage.StaticCopy, Stride);
}
/// <summary>
/// Calls the glBufferData(...). The data.Length will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="data">The data as float.</param>
/// <param name="usage">The usage.</param>
/// <param name="stride">The amount of floats that form one input variable.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, float[] data, OGLModelUsage usage, int stride)
{
Size = data.Length / stride;
Stride = stride;
BufferDataType = OGLType.Float;
gl.BufferData((uint)target, data, (uint)usage);
}
public virtual void ReplaceBufferData(OpenGL gl, OGLBufferDataTarget target, int offset, int size, IntPtr newData,
bool bind = false, OGLBindBufferTarget bindTarget = OGLBindBufferTarget.ArrayBuffer)
{
if (bind)
{
BindBuffer(gl, bindTarget);
}
gl.BufferSubData((uint)target, offset, size, newData);
}
/// <summary>
/// Calls the glBufferData(...). The size will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="size">The size of the data buffer.</param>
/// <param name="data">The pointer to the data in memory.</param>
/// <param name="usage">The usage.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, int size, IntPtr data, OGLModelUsage usage, int stride, OGLType bufferDataType,
bool bind = false, OGLBindBufferTarget bindTarget = OGLBindBufferTarget.ArrayBuffer)
{
Size = size / stride;
Stride = stride;
if (bind)
{
BindBuffer(gl, bindTarget);
}
gl.BufferData((uint)target, size, data, (uint)usage);
}
/// <summary>
/// Calls the glBufferData(...). The data.Length will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="data">The data as uint.</param>
/// <param name="usage">The usage.</param>
/// <param name="stride">The amount of uint that form one input variable.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, uint[] data, OGLModelUsage usage, int stride)
{
Size = data.Length / stride;
Stride = stride;
BufferDataType = OGLType.UnsignedInt;
var dataSize = data.Length * sizeof(uint);
IntPtr newDataPtr = Marshal.AllocHGlobal(dataSize);
var intData = new int[data.Length];
Buffer.BlockCopy(data, 0, intData, 0, dataSize);
Marshal.Copy(intData, 0, newDataPtr, data.Length);
gl.BufferData((uint)target, dataSize, newDataPtr, (uint)usage);
}
public virtual void ReplaceBufferData(OpenGL gl, OGLBufferDataTarget target, int offset, uint[] newData,
bool bind = false, OGLBindBufferTarget bindTarget = OGLBindBufferTarget.ArrayBuffer)
{
IntPtr newDataPtr;
// Unsafe code.
unsafe
{
// Fix the pointer to the array.
fixed(uint *pArray = newData)
{
// pArray now has the pointer to the array. You can get an IntPtr by casting to void, and passing that in.
newDataPtr = new IntPtr((void *)pArray);
}
}
ReplaceBufferData(gl, target, offset, newData.Length, newDataPtr, bind, bindTarget);
}
public void SetBufferData(OpenGL gl, OGLBufferDataTarget target, uint[] indices, OGLModelUsage usage, bool compress)
{
Size = indices.Length;
Stride = 1;
if(compress)
if (indices.Max() < byte.MaxValue)
{
// use a byte buffer instead in order to decrease the buffer size.
var newIdxs = indices.Select(x => (byte)x).ToArray();
SetBufferData(gl, OGLBufferDataTarget.ArrayBuffer, newIdxs, OGLModelUsage.StaticCopy, Stride);
return;
}
else if (indices.Max() < ushort.MaxValue)
{
// use a ushort buffer instead in order to decrease the buffer size.
var newIdxs = indices.Select(x => (ushort)x).ToArray();
SetBufferData(gl, OGLBufferDataTarget.ArrayBuffer, newIdxs, OGLModelUsage.StaticCopy, Stride);
return;
}
SetBufferData(gl, SharpGLHelper.OGLBufferDataTarget.ArrayBuffer, indices, SharpGLHelper.OGLModelUsage.StaticCopy, Stride);
}
/// <summary>
/// Calls the glBufferData(...). The size will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="size">The size of the data buffer.</param>
/// <param name="data">The pointer to the data in memory.</param>
/// <param name="usage">The usage.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, int size, IntPtr data, OGLModelUsage usage, int stride, OGLType bufferDataType,
bool bind = false, OGLBindBufferTarget bindTarget = OGLBindBufferTarget.ArrayBuffer)
{
Size = size / stride;
Stride = stride;
if(bind)
BindBuffer(gl, bindTarget);
gl.BufferData((uint)target, size, data, (uint)usage);
}
/// <summary>
/// Calls the glBufferData(...). The data.Length will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="data">The data as uint.</param>
/// <param name="usage">The usage.</param>
/// <param name="stride">The amount of uint that form one input variable.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, uint[] data, OGLModelUsage usage, int stride)
{
Size = data.Length / stride;
Stride = stride;
BufferDataType = OGLType.UnsignedInt;
var dataSize = data.Length * sizeof(uint);
IntPtr newDataPtr = Marshal.AllocHGlobal(dataSize);
var intData = new int[data.Length];
Buffer.BlockCopy(data, 0, intData, 0, dataSize);
Marshal.Copy(intData, 0, newDataPtr, data.Length);
gl.BufferData((uint)target, dataSize, newDataPtr, (uint)usage);
}
/// <summary>
/// Calls the glBufferData(...). The data.Length will be used as value for Size property.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="target">The buffer data target.</param>
/// <param name="data">The data as ushort.</param>
/// <param name="usage">The usage.</param>
/// <param name="stride">The amount of ushorts that form one input variable.</param>
public virtual void SetBufferData(OpenGL gl, OGLBufferDataTarget target, ushort[] data, OGLModelUsage usage, int stride)
{
Size = data.Length / stride;
Stride = stride;
BufferDataType = OGLType.UnsignedShort;
gl.BufferData((uint)target, data, (uint)usage);
}
public virtual void ReplaceBufferData(OpenGL gl, OGLBufferDataTarget target, int offset, int size, IntPtr newData,
bool bind = false, OGLBindBufferTarget bindTarget = OGLBindBufferTarget.ArrayBuffer)
{
if (bind)
BindBuffer(gl, bindTarget);
gl.BufferSubData((uint)target, offset, size, newData);
}
public virtual void ReplaceBufferData(OpenGL gl, OGLBufferDataTarget target, int offset, uint[] newData,
bool bind = false, OGLBindBufferTarget bindTarget = OGLBindBufferTarget.ArrayBuffer)
{
IntPtr newDataPtr;
// Unsafe code.
unsafe
{
// Fix the pointer to the array.
fixed (uint* pArray = newData)
{
// pArray now has the pointer to the array. You can get an IntPtr by casting to void, and passing that in.
newDataPtr = new IntPtr((void*)pArray);
}
}
ReplaceBufferData(gl, target, offset, newData.Length, newDataPtr, bind, bindTarget);
}
