/// <summary>
///
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="src"></param>
/// <param name="discardWholeBuffer"></param>
public override void WriteData(int offset, int length, IntPtr src, bool discardWholeBuffer)
{
Gl.glBindBufferARB(Gl.GL_ARRAY_BUFFER_ARB, bufferID);
if (useShadowBuffer)
{
// lock the buffer for reading
IntPtr dest = shadowBuffer.Lock(offset, length,
discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal);
// copy that data in there
Memory.Copy(src, dest, length);
// unlock the buffer
shadowBuffer.Unlock();
}
if (discardWholeBuffer)
{
Gl.glBufferDataARB(Gl.GL_ARRAY_BUFFER_ARB,
sizeInBytes,
IntPtr.Zero,
GLHelper.ConvertEnum(usage));
}
Gl.glBufferSubDataARB(
Gl.GL_ARRAY_BUFFER_ARB,
offset,
length,
src);
}
///<summary>
///</summary>
///<param name="offset"> </param>
///<param name="length"> </param>
///<param name="src"> </param>
///<param name="discardWholeBuffer"> </param>
public override void WriteData(int offset, int length, BufferBase src, bool discardWholeBuffer)
{
Gl.glBindBufferARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, this._bufferId);
if (useShadowBuffer)
{
// lock the buffer for reading
var dest = shadowBuffer.Lock(offset, length, discardWholeBuffer ? BufferLocking.Discard : BufferLocking.Normal);
// copy that data in there
Memory.Copy(src, dest, length);
// unlock the buffer
shadowBuffer.Unlock();
}
if (discardWholeBuffer)
{
Gl.glBufferDataARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, new IntPtr(sizeInBytes), IntPtr.Zero,
GLHelper.ConvertEnum(usage));
}
Gl.glBufferSubDataARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, new IntPtr(offset), new IntPtr(length), src.Pin());
src.UnPin();
}
public GLHardwareVertexBuffer(int vertexSize, int numVertices, BufferUsage usage, bool useShadowBuffer)
: base(vertexSize, numVertices, usage, false, useShadowBuffer)
{
bufferID = 0;
Gl.glGenBuffersARB(1, out bufferID);
if (bufferID == 0)
{
throw new Exception("Cannot create GL vertex buffer");
}
Gl.glBindBufferARB(Gl.GL_ARRAY_BUFFER_ARB, bufferID);
// initialize this buffer. we dont have data yet tho
Gl.glBufferDataARB(Gl.GL_ARRAY_BUFFER_ARB, sizeInBytes, IntPtr.Zero, GLHelper.ConvertEnum(usage));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="manager"> the HardwareBufferManager instance that created this buffer. </param>
/// <param name="type"> Index type (16 or 32 bit). </param>
/// <param name="numIndices"> Number of indices in the buffer. </param>
/// <param name="usage"> Usage flags. </param>
/// <param name="useShadowBuffer"> Should this buffer be backed by a software shadow buffer? </param>
public GLHardwareIndexBuffer(HardwareBufferManagerBase manager, IndexType type, int numIndices, BufferUsage usage,
bool useShadowBuffer)
: base(manager, type, numIndices, usage, false, useShadowBuffer)
{
// generate the buffer
Gl.glGenBuffersARB(1, out this._bufferId);
if (this._bufferId == 0)
{
throw new Exception("OGL: Cannot create GL index buffer");
}
Gl.glBindBufferARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, this._bufferId);
// initialize this buffer. we dont have data yet tho
Gl.glBufferDataARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, new IntPtr(sizeInBytes), IntPtr.Zero,
GLHelper.ConvertEnum(usage));
LogManager.Instance.Write("OGL: Created IndexBuffer[{0}].", this._bufferId);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="type">Index type (16 or 32 bit).</param>
/// <param name="numIndices">Number of indices in the buffer.</param>
/// <param name="usage">Usage flags.</param>
/// <param name="useShadowBuffer">Should this buffer be backed by a software shadow buffer?</param>
public GLHardwareIndexBuffer(IndexType type, int numIndices, BufferUsage usage, bool useShadowBuffer)
: base(type, numIndices, usage, false, useShadowBuffer)
{
// generate the buffer
Gl.glGenBuffersARB(1, out bufferID);
if (bufferID == 0)
{
throw new Exception("Cannot create GL index buffer");
}
Gl.glBindBufferARB(Gl.GL_ELEMENT_ARRAY_BUFFER_ARB, bufferID);
// initialize this buffer. we dont have data yet tho
Gl.glBufferDataARB(
Gl.GL_ELEMENT_ARRAY_BUFFER_ARB,
sizeInBytes,
IntPtr.Zero,
GLHelper.ConvertEnum(usage));
}
public GLHardwareVertexBuffer(HardwareBufferManagerBase manager, VertexDeclaration vertexDeclaration, int numVertices,
BufferUsage usage, bool useShadowBuffer)
: base(manager, vertexDeclaration, numVertices, usage, false, useShadowBuffer)
{
this.bufferID = 0;
Gl.glGenBuffersARB(1, out this.bufferID);
if (this.bufferID == 0)
{
throw new Exception("Cannot create GL vertex buffer");
}
Gl.glBindBufferARB(Gl.GL_ARRAY_BUFFER_ARB, this.bufferID);
// initialize this buffer. we dont have data yet tho
Gl.glBufferDataARB(Gl.GL_ARRAY_BUFFER_ARB, new IntPtr(sizeInBytes), IntPtr.Zero, GLHelper.ConvertEnum(usage));
// TAO 2.0
//Gl.glBufferDataARB( Gl.GL_ARRAY_BUFFER_ARB, sizeInBytes, IntPtr.Zero, GLHelper.ConvertEnum( usage ) );
}
