private void TestCommandQueueMemCopy(Context c, CommandQueue cq)
{
Output("Testing synchronous host memory->memory copy");
AlignedArrayFloat aafSrc = new AlignedArrayFloat(1024 * 1024, 64);
AlignedArrayFloat aafDst = new AlignedArrayFloat(1024 * 1024, 64);
SetAAF(aafSrc, 0.0f);
SetAAF(aafDst, 1.0f);
/// Test HOST_PTR -> HOST_PTR copy
/// The call to EnqueueMapBuffer synchronizes caches before testing the result
using (Mem memSrc = c.CreateBuffer((MemFlags)((ulong)MemFlags.READ_WRITE+(ulong)MemFlags.USE_HOST_PTR), aafSrc.ByteLength, aafSrc))
{
using (Mem memDst = c.CreateBuffer((MemFlags)((ulong)MemFlags.READ_WRITE+(ulong)MemFlags.USE_HOST_PTR), aafDst.ByteLength, aafDst))
{
cq.EnqueueCopyBuffer(memSrc, memDst, IntPtr.Zero, IntPtr.Zero, (IntPtr)aafSrc.ByteLength);
cq.EnqueueBarrier();
IntPtr mappedPtr = cq.EnqueueMapBuffer(memDst, true, MapFlags.READ_WRITE, (IntPtr)0, (IntPtr)aafDst.ByteLength);
if (!TestAAF(aafDst, 0.0f))
Error("EnqueueCopyBuffer failed, destination is invalid");
cq.EnqueueUnmapMemObject(memDst, mappedPtr);
cq.EnqueueBarrier();
}
}
/// Test COPY_HOST_PTR -> COPY_HOST_PTR copy
/// Verify that original source buffers are intact and that the copy was successful
SetAAF(aafSrc, 0.0f);
SetAAF(aafDst, 1.0f);
using (Mem memSrc = c.CreateBuffer(MemFlags.COPY_HOST_PTR, aafSrc.ByteLength, aafSrc))
{
using (Mem memDst = c.CreateBuffer(MemFlags.COPY_HOST_PTR, aafSrc.ByteLength, aafDst))
{
SetAAF(aafSrc, 2.0f);
SetAAF(aafDst, 3.0f);
cq.EnqueueCopyBuffer(memSrc, memDst, IntPtr.Zero, IntPtr.Zero, (IntPtr)aafSrc.ByteLength);
cq.Finish();
if (!TestAAF(aafSrc, 2.0f))
Error("Memory copy destroyed src buffer");
if (!TestAAF(aafDst, 3.0f))
Error("Memory copy destroyed dst buffer");
Event ev;
cq.EnqueueReadBuffer(memDst, false, IntPtr.Zero, (IntPtr)aafDst.ByteLength, aafDst,0, null, out ev);
cq.EnqueueWaitForEvents(1, new Event[] { ev });
ev.Dispose();
cq.Finish();
if (!TestAAF(aafDst, 0.0f))
Error("Memory copy failed");
}
}
/// Test ALLOC_HOST_PTR -> ALLOC_HOST_PTR copy
SetAAF(aafSrc, 0.0f);
SetAAF(aafDst, 1.0f);
using (Mem memSrc = c.CreateBuffer((MemFlags)((ulong)MemFlags.ALLOC_HOST_PTR + (ulong)MemFlags.READ_WRITE), aafSrc.ByteLength, IntPtr.Zero))
{
using (Mem memDst = c.CreateBuffer((MemFlags)((ulong)MemFlags.ALLOC_HOST_PTR + (ulong)MemFlags.WRITE_ONLY), aafSrc.ByteLength, IntPtr.Zero))
{
cq.EnqueueWriteBuffer(memSrc, false, (IntPtr)0, (IntPtr)aafSrc.ByteLength, aafSrc);
cq.EnqueueWriteBuffer(memDst, false, (IntPtr)0, (IntPtr)aafSrc.ByteLength, aafSrc);
cq.EnqueueBarrier();
cq.EnqueueCopyBuffer(memSrc, memDst, IntPtr.Zero, IntPtr.Zero, (IntPtr)aafSrc.ByteLength);
cq.EnqueueBarrier();
cq.EnqueueReadBuffer(memDst, true, IntPtr.Zero, (IntPtr)aafDst.ByteLength, aafDst);
if (!TestAAF(aafDst, 0.0f))
Error("Memory copy failed");
}
}
/// Test DEFAULT -> DEFAULT copy
SetAAF(aafSrc, 0.0f);
SetAAF(aafDst, 1.0f);
using (Mem memSrc = c.CreateBuffer((MemFlags)((ulong)MemFlags.ALLOC_HOST_PTR + (ulong)MemFlags.READ_ONLY), aafSrc.ByteLength, IntPtr.Zero))
{
using (Mem memDst = c.CreateBuffer((MemFlags)((ulong)MemFlags.ALLOC_HOST_PTR + (ulong)MemFlags.WRITE_ONLY), aafSrc.ByteLength, IntPtr.Zero))
{
cq.EnqueueWriteBuffer(memSrc, false, (IntPtr)0, (IntPtr)aafSrc.ByteLength, aafSrc);
cq.EnqueueWriteBuffer(memDst, false, (IntPtr)0, (IntPtr)aafSrc.ByteLength, aafSrc);
cq.EnqueueBarrier();
cq.EnqueueCopyBuffer(memSrc, memDst, IntPtr.Zero, IntPtr.Zero, (IntPtr)aafSrc.ByteLength);
cq.EnqueueBarrier();
cq.EnqueueReadBuffer(memDst, true, IntPtr.Zero, (IntPtr)aafDst.ByteLength, aafDst);
if (!TestAAF(aafDst, 0.0f))
Error("Memory copy failed");
}
}
}
private void SetAAFLinear(AlignedArrayFloat aaf)
{
for (int i = 0; i < aaf.Length; i++)
aaf[i] = (float)i;
}
private bool TestAAF(AlignedArrayFloat aaf, float c)
{
for (int i = 0; i < aaf.Length; i++)
if (aaf[i] != c)
return false;
return true;
}
private void SetAAF(AlignedArrayFloat aaf, float c)
{
for (int i = 0; i < aaf.Length; i++)
aaf[i] = c;
}
