public override HardwareIndexBuffer CreateIndexBuffer(IndexType type, int numIndices, BufferUsage usage,
bool useShadowBuffer)
{
Contract.Requires(numIndices > 0);
#if AXIOM_D3D_MANAGE_BUFFERS
// Override shadow buffer setting; managed buffers are automatically
// backed by system memory
if (useShadowBuffer)
{
useShadowBuffer = false;
// Also drop any WRITE_ONLY so we can read direct
if (usage == BufferUsage.DynamicWriteOnly)
{
usage = BufferUsage.Dynamic;
}
else if (usage == BufferUsage.StaticWriteOnly)
{
usage = BufferUsage.Static;
}
}
#endif
var idxBuf = new D3D9HardwareIndexBuffer(this, type, numIndices, usage, false, useShadowBuffer);
lock ( IndexBuffersMutex )
{
indexBuffers.Add(idxBuf);
}
return(idxBuf);
}
public override HardwareIndexBuffer CreateIndexBuffer( IndexType type, int numIndices, BufferUsage usage,
bool useShadowBuffer )
{
Contract.Requires( numIndices > 0 );
#if AXIOM_D3D_MANAGE_BUFFERS
// Override shadow buffer setting; managed buffers are automatically
// backed by system memory
if ( useShadowBuffer )
{
useShadowBuffer = false;
// Also drop any WRITE_ONLY so we can read direct
if ( usage == BufferUsage.DynamicWriteOnly )
{
usage = BufferUsage.Dynamic;
}
else if ( usage == BufferUsage.StaticWriteOnly )
{
usage = BufferUsage.Static;
}
}
#endif
var idxBuf = new D3D9HardwareIndexBuffer( this, type, numIndices, usage, false, useShadowBuffer );
lock ( IndexBuffersMutex )
{
indexBuffers.Add( idxBuf );
}
return idxBuf;
}